Fans | Air Handling Units | Air Distribution Products | Fire Safety | Air Curtains and Heating Products | Tunnel Fans
Air Distribution Products
Basic Product Range
Disclose the secret of fresh air!
Systemair has been taking care of Indoor Air
Quality (IAQ) as an essential resource since
1974. Today Systemair is one of the leading
ventilation companies worldwide. A success
story,
which
started
in
Skinnskatteberg,
Sweden with the invention of the inline
duct fan. This invention revolutionised the
ventilation world. Since then the company
has continuously advanced and now offers
a comprehensive range of products for all
ventilation
requirements.
The
expert
at
Systemair have the required knowledge and
understanding in finding solutions when
considering the ventilation of shopping centres,
domestic ventilation of a family home to the complex ventilation of tunnels and
metro stations. More than 2500 employees and in excess of 60 subsidiaries in 40
countries globally we are available to our customers.
With this catalogue which features air distribution products and accessories we
give you as our customer a general overview of what Systemair can offer within
this range. For further information about all the other Systemair products you can
contact your local Systemair company or you can just visit our online catalogue on
www.systemair.com.
Quality
Systemair has been certified according to ISO 9001, ISO 14001 and ATEX. Our R&D
centre remains one of the most modern facilities in Europe. We test in compliance
with the international standards EN, ISO and AMCA.
© Systemair 2011. Systemair reserves the right to make technical changes. For updated documentation, please refer to www.systemair.com.
Contents
Systemair......................................................................................... 2
Group product overview.............................................................4-5
A good indoor climat is vital.......................................................... 6
Marketing tools............................................................................... 7
ADP basic product range.......................................................... 8-11
Technical data
Air valves........................................................................ 12-26
Wall grilles & diffusers.................................................. 27-36
Linear wall & ceiling diffusers............................................. 37
Floor & step diffusers.................................................... 38-39
Transfer & door grilles................................................... 40-41
Duct mounted grilles & diffusers.................................. 42-44
Square ceiling diffusers................................................. 45-53
Round ceiling diffusers.................................................. 54-65
Jet diffusers.................................................................... 66-67
Displacement diffusers.................................................. 68-69
Air volume controllers................................................... 70-78
Louvers........................................................................... 79-80
Plenum boxes................................................................. 81-83
Theory....................................................................................84-100
Index............................................................................................101
Systemair
The straight way
The straight way was our first production
idea and led to the circular duct fan. Today
“the straight path” represents our ambition
to simplify the life of our customers. Stocked
products are delivered in Europe within 24
hours from local warehouses and within 72
hours from distribution centres. High product
quality, correct technical data and fast deliveries
are always in focus.
Systemair
Systemair was established in Sweden in
1974 and is today the parent company in an
international group with 50 subsidiaries and
approximately 2500 employees. The Group’s
head office and largest production plant is
located in Skinnskatteberg with some 400
employees and a floor area of 50,000 m2.
Production
We are proud of our production units. The aim
has been to have both effective production
of bulk products and, at the same time, an
efficient and flexible approach to producing
small volumes. This has steered our choice of
machinery and how we plan our production,
with focus on the working environment. Our
premises are light and pleasant and we invest
in tools that facilitate work and provide our
employees with a safe and efficient workplace.
Technical data
Our development centre in Skinnskatteberg
is one of the most modern in Europe for air
flow measurements, acoustic measurements,
efficiency
measurements,
low
speed
measurements on air terminal devices, etc. All
measurements are performed in compliance
with applicable standards as set out in AMCA
and ISO.
Dal, Eidsvoll–Norway
Quality and environment
Systemair is certified according to ISO 9001
and ISO 14001. Our quality system allows
us to continuously improve our products and
our customer service. Certification means
that we have undertaken to minimise our
environmental impact. We always take the
environment into consideration when we
choose sub-suppliers, materials, production
methods, etc. An important factor is that
we continuously work to reduce our energy
consumption and reduce waste. Through
increased recovery and heightened awareness
we have been able to reduce our waste by
90%. Quality and environment management
systems are under continuous development.
These are audited twice a year by the
certification body BVQI (Bureau Veritas Quality
International).
Bouctouche - Canada
In Eidsvoll, Norway we manufacture
air handling units for the Norwegian
market. The Norwegian warehouse for
fans is also located here.
In Bouctouche, Canada we primarily
produce duct fans and heat exchangers
used in residential ventilation for the
North American market.
Detailed product information can be found on
our website, www.systemair.com
Kansas City – USA
In Kansas City we produce roof fans,
roof extractor fans, wall fans and
recirculating air units.
Production in Skinnskatteberg is virtually fully automated with modern machinery featuring advanced
computer support. Also located here is the company’s most advanced test installation for measuring
technical data.
Hässleholm - Sweden
Skinnskatteberg - Sweden
Main plant
The main plant in Skinnskatteberg
houses one of the company’s two central
warehouses and the largest production
installation as well as the group’s head
office. Fans and accessories are produced
here as stock items.
Klockargården
Systemair’s small air handling units are
made at Klockargården in Skinnskatteberg.
Frico’s central warehouse of approximately
8,000 m2 is also located here.
VEAB
VEAB in Hässleholm manufactures first and
foremost heating coils and hot air fans.
Ukmerge – Lithuania
Production of air handling units for homes.
Bratislava – Slovakia
The factory in Bratislava manufactures air
distribution products and fire dampers.
Maribor – Slovenia
The factory in Maribor, Slovenia specialises in
high temperature fans for flue gas ventilation.
Kuala Lumpur – Malaysia
Production and marketing of products for tunnel
and garage ventilation
India
A broad assortment of air distribution
products are manufactured, along with a
wide range of the Systemair products are
offered in parallel, Noida - INDIA
Madrid – Spain
Hasselager - Denmark
Windischbuch - Germany
The factory in Madrid, Spain makes air
handling units for the southern European
market.
The factory in Hasselager, Denmark manufactures large air handling units. All production here is order based
In Windischbuch, Germany a broad
assortment of fans are manufactured, of
which the majority are stock items. One of
Systemair’s central warehouses is located
here.
4
Other products from Systemair
Systemair has an extensive range of ventilation products: fans including smoke
extract, tunnel and car park fans ,explosion proof fans, air handling units from
large central units to small residential units with energy recovery, air distribution
products and fire dampers.
These products are installed in a variety of locations, including homes, offices,
healthcare premises, shops, industrial buildings, tunnels, parking garages, training
facilities, sports centres.
Air handling units
Compact air handling units
False ceiling units
Systemair produces a wide range of air
handling units.
Compact supply air handling unit with
heating battery and filter for use in petrol
stations, schools, stores, offices and smaller
premises. The units are compact in dimensions and are easy to install.
Air flow: 20-1400 l/s
Compact and easy to maintain air handling
unit with heat recovery and control system.
Mounted in a false ceiling or in the attic.
Air flow: 20-1500 l/s
Horizontal units
Vertical units
A broad range of horizontal air handling
units with or without heat recovery. Useable everywhere from minor premises to
schools, stores and larger offices.
Air flow: 20-1500 l/s
A broad range of vertical air handling units
with or without heat recovery. Useable everywhere from minor premises to schools,
stores and larger offices.
Air flow: 20-1500 l/s
RESIDENTIAL VENTILATION
Residential units
Cooker hoods
Complete energy-efficient air handling
units with heat recovery and built-in control
systems. Designed to be mounted over the
cooker, on walls or horizontally in attics.
For homes with living areas of 60-320 m2.
Good at capturing odours even at low
airflows.
5
Catalogues for other products
We have seperate catalogues for Air Handling Units and Air Distribution Products as well as leaflets and brochures for all of our products. Contact us for
printed versions or download on www.systemair.com.
FIRE AND SMOKE DAMPERS
Fire & smoke dampers
Systemair produces fans, dampers and
control equipment for dual use, i.e. for normal operation and certified for use during
normal operation and in the event of a fire.
Dampers that reduce the spread of smoke
and fire.
AIR DISTRIBUTION PRODUCTS
Circular & rectangular fans
Roof fans
Fans
Systemair has a wide range of fans for use
in various applications from small office
premises to larger industrial applications.
Common to all items in the range is that
components have been developed to
satisfy stringent demands for low energy
consumption.
Wide range of use for all kinds of installations
Effective exhaust air system for horizontal
or vertical air discharge
Axial fans
Explosion proof fans & smoke
extract fans
The fans have all undergone extensive testing, both in the laboratory and out in the
field, in order to comply with current and
future demands for low energy consumption. All products are also manufactured to
comply with environmental requirements.
Effective supply and exhaust system for
industrial buildings applications
fans for explosion hazardous areas & smoke
and heat extract
6
A good indoor climate is vital
We often take natural resources such as fresh air for granted. We must however
remain frugal with this essential resource and mindful of maintaining a responsible balance between the designing of good ventilation systems and considering
energy consumption and well thought out material usage and production methods. Systemair has recognized this need and has developed the "Green Ventilation" registered trade mark for ventilation labelling these products.
Heat recovery
Pressure
In areas with a relatively low average
annual temperature, ventilation systems
employ effective heat recovery that returns
energy from extract air to the supply air. A
good rotating heat exchanger can recover
up to 90% of the energy present.
The design of the duct system and the unit
has an impact on required system pressure.
There are often tens, sometimes hundreds,
of Pascals to be saved here.
Energy-efficient fans
Today, there is a new generation of fan motors that contribute to a dramatic reduction
in energy consumption, as much as 50% in
some cases. The new EC motors are better
suited to speed control functions, which
is where considerable energy savings can
be made. Further benefits are of quieter
operation as well as extended product life.
Cool recovery
In warmer parts of the world, energy savings may be possible by drawing cool nighttime supply air into premises, thus cooling
the building structure.
to ensure that our products maintain a
high standard and are approved by various
bodies. For units, this may mean Eurovent
certification or other local certification for
the country in question. To achieve this, you
need resources and expertise. Within the
Group, you will find, among other things,
one of Europe’s most modern development
centres, which is AMCA-certified.
Quality-certified products
How can you choose the right solution and
product when there are so many alternatives? Nowadays, most major suppliers are
ISO-certified and have CE-marked products,
but is that enough? At Systemair we are
going one step further and working hard
One of Europe's most modern development centres
A room that is so quiet that the only thing
you’ll hear is your heartbeat.
The development centre in Skinnskatteberg, recently accredited by AMCA, signifies
an investment of EUR 700,000 and is fitted
with measurement and testing equipment,
making it one of the most modern facilities
of its kind in Europe.
The quiet room is one of the test stations
or a “reverberation chamber”, producing
a background sound of less than 10 dBA.
When measuring supply air terminals, a
green laser is used to show how the air
is expelled from wall-mounted or ceilingmounted devices. There is also a climate
chamber that cools the air to -20°C, which
means we can use it all year round to
develop our recovery units. In addition to
the test centre in Skinnskatteberg, there are
also test facilities in Germany and Denmark
where we can measure air volumes of
more than 400 000 m3/h.
7
Selection tools
We have developed this overview to make it easier for you to get an idea of
which product best suits your specific needs. More detailed analysis or planning
usually requires additional information, which is where the following tools come
in.
Product catalogue and specification
data
More detailed technical information, sufficient to carry out complete planning, is
available in separate catalogues and specification data. These describe all incorporated functions, available accessories, and
additional technical data.
Online catalogue and computer
software
For those who prefer to work online, it is
possible to select and dimension most products (except DV and NB) using Systemair’s
online catalogue.
In addition to complete product information, there is also a selection function that
suggests alternative products to suit actual
needs. For certain products, such as Topvex,
medium pressure axial fans, air handling
units DV and NB, there is computer software
that you can download and install locally.
Personal support
Systemair aims to have local expertise
close to the customer. You can find upto-date information and contact details
for each country on our website, www.
systemair.com.
| Content
Balance-E
Air Valves
Return Plastic Air Valve
Elegant-VE
Supply Air Valve
BHC
Return Air Regulatoring Motorized
Valve with Presence & Humidity Sensor
OVE
Transfer Air Valve
Wall Grilles and Diffusers
8
NOVA-A
Double Deflection Grille
Used for Supply and Return
Sinus-BR
Nozzle Diffuser for Supply Return Air
Balance-S
Supply Plastic Air Valve
Elegant-VS
Supply Air Valve
AL
Return Self Regulating Air Valve
OVR
Transfer Air Valve
NOVA-L
Linear Bar Grille Used for
Supply and Return
Sinus-BS
Nozzle Diffuser for Supply Return Air
EFF
Return Metal Air Valve
Elegant-VI
Supply Air Valve
AE
Return Self Regulating Air Valve
TFF
Supply Metal Air Valve
Elegant-VT
Supply Air Valve
VTK
Self Adjusting Inlet Air Valve
OVX
Transfer Air Valve
NOVA-R
Non Vision Return Air Grille
NOVA-F
Non Vision Return Air Grille
with G3 Filter
Floor & Step
Diffusers
Linear Wall &
Ceiling Diffusers
Content |
Hella-A
Linear Slot Diffuser
Elegant-AT
Transfer &
Door Grilles
Supply Air Valve
NOVA-D
Square Ceiling Diffusers
Duct Mounted
Grilles & Diffusers
Non Vision Transfer Air Door Grille
NOVA-C
Single or Double Deflection Duct
Grilles for Supply and Return Air
Kvadra
Louvre Faced Ceiling Diffuser
for Supply and Return Air
VVKR
Swirl Ceiling Diffuser Used for Supply
and Return Air with Adjustable Blades
SFD
Floor Diffuser
NOVA-E
Egg Crate Return Air Grille
Sinus-DC
Circular Duct Mounted
Nozzle Diffuser for Supply Air
CRS-T
Square Ceiling Swirl Diffuser
with Fixed Air Guiding Blades
TSF
Perforated Face Return Air Diffusers
Sinus-DR
Rectangular Duct or Wall Mounted
Nozzle Diffuser for Supply Air
VVKN
Swirl Ceiling Diffuser Used for Supply
and Return air With Fixed Blades
TSO
Perforated Face Supply Air Diffuser
9
Square Ceiling
Diffusers
10 | Content
Sinus-A
Square Multi Nozzle Ceiling Diffuser
for Plaster or False Ceiling
Displacement
Diffusers
Jet Diffusers
Round Ceiling Diffusers
Konika
Circular Fixed Cones
Ceiling Diffuser
TST
Circular Ceiling Diffuser with
Adjustable Front Plate
Sinus-G
Sinus-F
Square Multi Nozzle Ceiling Diffuser
for Plaster or False Ceiling
Konika-A
Square Multi Nozzle Ceiling Diffuser
for T-Bar ceiling
CRS
Circular Adjustable Cone
Ceiling Diffuser
Circular Metal Swirl Diffuser
with Fixed Blades
TSK
TSR
Circular Ceiling Diffuser with
Adjustable Perforated Front Plate
Circular Ceiling Diffuser with
Adjustable Front Plate for
Apparent Installations
CRSP
Circular Swirl Diffuser
with Fixed Blades
TSP
Circular Ceiling Diffuser with
Adjustable Front Plate for
Apparent installations
Sinus-C
Sinus-C/T
IKD
TSD
Circular Nozzle Ceiling Diffuser
Complete with Side Entry Plenum
Box for Visible Installation
Circular Nozzle Ceiling Diffuser
Complete with Top Entry Plenum
Box for Visible Installation
Circular Ceiling Diffuser with Dual
Adjustable Cones
for High Installations
Circular Swirl Diffuser with Adjustable
Blades for Horizontal or
Vertical Air Pattern
AJD
Long Throw Adjustable
Nozzles
LPS
Displacement Diffuser Suspended or
Mounted Against the Ceiling for Low
Velocity Ceiling Air Distribution
JSR
Circular Multi-Cone Jet Diffuser with
Narrow Concentric or Wide Cones for
Long or Short Air Pattern
Content | 11
RDA
Air Volume Controllers
Constant Volume Regulator
for Duct or Air Inlets
SPM
Iris Damper for Measuring
and Adjusting Air Flow with
More Choking Ability
RSK
SPI
Iris Damper for Measuring and
Adjusting the Air Flow
SPI-F
SPM-F
Actuator Driven Iris Dampers
Actuator Driven Iris Dampers
with More Choking Ability
VKK
VK
Louver Shutters
with Circular Inlet and Outlet
Louver Shutters
for Vertical Mounting on a Wall
Louvers
Back Draft Damper
for Circular Ducts
RPK-R
Constant Air Volume Controller
with Adjustable Air Flow
IGC
IGK
Plenum Boxes
Circular External Louver
PRG
Rear, Side or Top Entry Insulated
Plenum Boxes Designed for
Rectangular Grilles
Square External Louver
PER
Side Entry Plenum Boxes
Designed for
Circular Inlet Diffusers
VVK
Side Entry Plenum Boxes
Designed for
Square Ceiling Diffusers
Hella-A-PB
Side Entry Plenum Box
Designed for
Linear Slot Diffusers
12 | Air valves
Balance-E
Return plastic air valve
Dimensions
Function
The Balance-E is a round exhaust valve with
an aerodynamically shaped valve cone. The
Balance-E performs extremely well with regard to sound level, pressure drop and air flow
characteristics. The Balance-E is installed in a
frame or directly into the duct.
Design
The Balance-E is manufactured from recyclable polypropylene and tolerates temperatures
up to 100°C. This material also withstands
most chemicals in small concentrations, Polyether gasket. The Balance-E is supplied in a
white finish which matches RAL 9010.
ØA
ØB ØC D
Balance-E-100
100 70 142 61
Balance-E-125
125 87 160 61
Balance-E-160
160 118 195 57
Balance-E-200
200 167 240 64
5
10
15
Air flow and pressure drop
Balance-E
Adjustment
The cone is screwed a number of turns
clockwise or anticlockwise so as to achieve
the air gap in mm which corresponds to the
pressure drop and required air flow shown in
the diagram. The pressure drop is checked by
pushing a suitable test probe into the front of
the unit behind the valve cone.
a, (mm) -7.5 -5
0
100k-factor 0.83 1.09 1.46 2.00 2.28 2.69
125k-factor 0.85 1.11 1.63 2.15 2.41 3.45
a, (mm) -2.5
0
5
20
a, (mm) -5
0
5
10
15
20
Accessories
RFP, RFU Mounting frame.
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
RFP
ØA
RFP 100
RFP 125
ΔPi, find the mean pressure
RFU
hole dimension
120
97
Ø103
146
122
Ø128
RFP 160
180
157
Ø163
RFP 200
220
197
Ø203
ØA
RFU 100
RFU 125
hole dimension
120
97
Ø103
146
122
Ø128
RFU 160
180
157
Ø163
RFU 200
220
197
Ø203
Air flow range (m3/h, l/s) and ∆Pt - Pressure (Pa)
Balance-E
RFP
RFU
100
6961
6125
6130
95
161
125
6962
6126
6131
88
159
160
6963
6127
6134
31
200
6964
6128
6135
43
3
m /h
40
60
80
l/s
11
17
22
20-25
30
35-40
241
82
Size of
ØD
Balance-E
Art No
Size of
ØD
Acoustic performance in dB(A):
15
200 k
-factor 4.43 5.74 7.30 8.4410.18 11.50
a = air gap in mm
Ordering code
Balance - E 100
(E=Exhaust Air, Diameter)
Size
10
160k-factor 2.02 2.63 3.93 4.53 6.08 7.56
133
33
66
109
100
130
180
230
28
36
50
64
Air valves | 13
Balance-S
Supply plastic air valve
Function
The Balance-S is a round supply-air valve
with an aerodynamically shaped valve cone.
The Balance-S performs extremely well with
regard to sound level, pressure drop, air flow
and self-damping. The Balance-S is installed in
a frame or directly into the duct.
Design
The Balance-S is manufactured from recyclable polypropylene and tolerates temperatures
up to 100°C. This material also withstands
most chemicals in small concentrations, Polyether gasket. The Balance-S is supplied in a
white finish which matches RAL 9010.
Adjustment
The valve cone is screwed a number of turns
clockwise or anti-clockwise so as to achieve
the air gap in mm which corresponds to the
pressure drop and required air flow shown in
the diagram. The pressure drop is checked by
removing the front plug and pushing in a suitable test probe.
Dimensions
ØA
ØB ØC D
Balance-S-100
100 81 156 72
Balance-S-125
125 104 182 78
Balance-S-160
160 120 206 86
10
20
Air flow and pressure drop
Balance-S
a, (mm) 2.5
4
5
7.5
100k-factor 1.08 1.67 2.16 3.10 4.05 5.17
120k-factor 1.15 1.96 2.92 3.73 4.79 7.59
160k-factor 1.86 2.75 3.46 4.81 6.62 10.32
a = air gap in mm
Accessories
RFP, RFU Mounting frame.
Ordering code
Balance - S 100
(S = supply air, diameter)
Size of
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
RFP
ØA
ØD
hole dimension
RFP 100
RFP 125
120
97
Ø103
146
122
Ø128
RFP 160
180
157
Ø163
RFP 200
220
197
Ø203
ΔPi, find the mean pressure
RFU
ØA
RFU 100
RFU 125
Size of
ØD
hole dimension
120
97
Ø103
146
122
Ø128
RFU 160
180
157
Ø163
RFU 200
220
197
Ø203
Balance-S
Size
Art No
Air flow range (m3/h, l/s) and throw I0,2 (m)
Balance-S
RFP
RFU
100
6965
6125
6130
1
125
6966
6126
6131
1
160
6967
6127
6134
2
3
2
2
∆Pt - Pressure drop (Pa)
62
120
217
45
164
224
1
2
2
70
102
223
m3/h
55
75
100
120
195
20-25
30
35-40
l/s
15
21
28
33
54
dB (A)
14 | Air valves
EFF
Return metal air valve
Dimensions
Function
The EFF is an exhaust device for installation
on ceiling or wall. It can also be used for supply air. The device has a lockable central cone
which is rotated to adjust the pressure and
consequently the air volume.
Design
The EFF is manufactured from sheet metal
with a white powder-coated finish (RAL
9010-80) and is available in the following
diameters: Ø63, Ø80, Ø100, Ø125, Ø150,
Ø160 and Ø200.
Accessories
RFP, RFU Mounting frame.
Mounting
All sizes can be installed directly onto the duct
ØA
ØB
C
EFF 63
63
90
15
EFF 80
80
106
15
EFF 100
100
135
15
EFF 125
125
160
15
EFF 150
149
191
15
EFF 160
160
195
15
EFF 200
200
238
18
Adjustment
The pressure is adjusted by rotating the valve
cone.
RFP
Ordering code
EFF-100
Dimensions
ØA
RFP 100
RFP 125
hole dimension
120
97
Ø103
146
122
Ø128
RFP 160
180
157
Ø163
RFP 200
220
197
Ø203
Selection Table
Table below shows the general product performance for more details please see selection software or contact your local systemair
office.
RFU
ØA
RFU 100
RFU 125
Art No
EFF
PER
RFP
hole dimension
120
97
Ø103
146
122
Ø128
RFU 160
180
157
Ø163
RFU 200
220
197
Ø203
Air flow range (m3/h, l/s) and ∆Pt - Pressure (Pa)
RFU
63
6144
80
6145
37
100
6146
6125
6130
125
6147
6522
6126
6131
33
102
156
150
7490
B505
B509
6132
22
78
124
160
6148
6523
6127
6134
23
80
125
200
6149
6524
6128
6135
6129
Acoustic performance in dB(A):
20
236
84
272
149
10
62
136
3
m /h
40
65
90
100
l/s
11
18
25
28
20-25
30
35-40
Size of
ØD
EFF
Size
Size of
ØD
44
84
124
150
190
250
310
42
53
69
86
Not Available
Air valves | 15
TFF
Supply metal air valve
Function
The TFF is a circular supply valve for ceiling
installation. The TFF consists of an inlet cone
and diffuser unit containing sound absor -bent
material. The technical specifications of the
diffuser unit give it a wide range of applications. By rotating diffuser unit, the throw and
pressure drop can be adjusted steplessly. Both
concentric and eccentric distribution patterns
can be selected by using the shielding device
provided.
Design
The TFF is manufactured from sheet steel with
a white powder-coated finish (RAL 9010-80)
and is available in the following diameters:
Ø80, Ø100, Ø125, Ø150, Ø160 and Ø200.
How to use for exhaust air
This device can be used for exhaust air as
explained.
Mounting
The TFF is easily fitted, either into the mounting frame or directly onto the duct using its
friction springs. If the TFF is fitted to a PER
plenum box, there must be a straight length, 4
times the duct’s diameter, in front of the
PER plenum box.
Dimensions
TFF
A
B
C
D
E
F
G
ØL
hole
ØK
DI
D2
080
-
-
-
-
-
-
-
26-56 106
dim
80
-
-
100
-
-
-
-
-
-
-
87
26-56 135 100
-
-
107
H
□J
125+PER 100-125320 250 150
47
185 115 190 26-56 160 125
160+PER 125-160360 250 160
47
210 120 200 26-56 191 160 124 162 167
200+PER 160-200450 300 195
47
280 138 235 29-59 238 200 159 202 207
Accessories
TPP Ceiling plate (600x600), RFP, RFU Mounting frame and PER Plenum box with removable damper and test points.
Ordering code
TFF-125
Size
ØA
RFP 100
RFP 125
ØD
hole dimension
120
97
Ø103
146
122
Ø128
RFP 160
180
157
Ø163
RFP 200
220
197
Ø203
RFU
127 132
Size of
RFP
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
99
ØA
RFU 100
RFU 125
Size of
ØD
hole dimension
120
97
Ø103
146
122
Ø128
RFU 160
180
157
Ø163
RFU 200
220
197
Ø203
TFF
Size
80
Art No
TFF
PER
RFP
6089
Air flow range (m3/h, l/s) and throw I0,2 (m)
RFU
6129
2
4
∆Pt - Pressure drop (Pa)
5
2
6
2
3
45
65
100
6090
6125
6130
14
33
57
125
6091
6522
6126
6131
4
5
6
19
43
80
150
7509
B505
B509
6132
3
3
4
14
34
69
160
6092
6523
6127
6134
3
4
5
13
34
70
200
6093
6524
6128
6135
3
4
6
5
29
78
20-25
30
35-40
3
m /h
30
60
75
85
115
165
265
l/s
8
17
21
24
32
46
74
dB (A)
Not Available
16 | Air valves
Elegant-VE
Supply air valve
Function
The Elegant has been especially developed
for providing a draught-free air supply from
the rear walls of offices, hotel rooms etc. The
guide jet prevents the air stream from falling
into the occupied zone before it has reached
an acceptable temperature. Max. temperature
difference ΔT 10K is permissible. The Elegant
is also suitable for VAV systems, as the distribution pattern is maintained across the entire
flow area.
Dimensions
Design
The Elegant is manufactured from steel and
consists of a convex front plate with perforations and guide jet opening. The front plate is
finished in the standard white powder-coating
(RAL 9010-80).
6298
6827
160
6828
12
14
6
9
87
Elegant VE-125
123 165
115 89
Elegant VE-160
158 198 124 86
125250500 1K 2K 4K 8K
VE 100
17 12 7
1
0
0
2
VE 125
17 12 7
1
0
0
2
VE 160
16 14 6
1
0
0
3
LW(dB) = LpA + Kok (LpA = diagram Kok = table)
correction factor Kok
Mid-frequencyband,Hz
Air flow range (m3/h, l/s) and throw I0,2 (m)
7
D
111 Sound power level, LW
Elegant-VE
125
C
165 Mid-frequency band, Hz
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
100
ØB 98 Mounting
The diffuser is installed directly onto the spiral
duct. Dismantling of the supply air unit: Turn
the unit and pull straight out.
Art No
ØA
Elegant VE-100
Sound attenuation, ΔL (dB)
Versions
The Elegant is available in sizes Ø100, Ø125
and Ø160, and in five different versions: VE is
the basic version with perforated front plate.
Size
12
∆Pt - Pressure drop (Pa)
38
117
187
36
76
143
2
3
5
14
49
116
m3/h
50
75
100
140
215
20-25
30
35-40
l/s
14
21
28
39
60
dB (A)
63 125250500 1K 2K 4K 8K
VE 100
13 -1 -2
0
-1 -6 -9 -14
VE 125
13 -1 -2
0
-1 -6 -9 -14
VE 160
14 3
3
-1 -8 -14 -15
1
Air valves | 17
Elegant-VS
Supply air valve
Function
The Elegant has been especially developed for
providing a draught-free air supply from the
rear walls of offices, hotel rooms etc. The VI
or VS version with guide jet is recommended
for cooled air. The guide jet prevents the air
stream from falling into the occupied zone
before it has reached an acceptable temperature. Max. temperature difference ΔT 10K is
permissible. The Elegant is also suitable for
VAV systems, as the distribution pattern is
maintained across the entire flow area.
Dimensions
Design
The Elegant is manufactured from steel and
consists of a convex front plate with perforations and guide jet opening. The front plate is
finished in the standard white powder-coating
(RAL 9010-80).
With the pressure
distribution plate in the
back of the diffuser, the
airflow can be adjusted
by using different number of plastic plugs, see
diagram.
Versions
The Elegant is available in sizes Ø125 and
Ø160, and in five different versions: VS has
a perforated front plate, guide jet, test points,
damper.
ØA
ØB C
D
Elegant VS-125
123 165 240 214
Elegant VS-160
158 198 274 236
Sound attenuation, ΔL (dB)
Mid-frequency band, Hz
125250500 1K 2K 4K 8K
VS 125
19 13 5
1
0
0
2
VS 160
15 11 6
0
1
0
1
Sound power level, LW
LW(dB) = LpA + Kok (LpA = diagram Kok = table)
correction factor Kok
Mid-frequencyband,Hz
Mounting
The diffuser is installed directly onto the spiral
duct. Dismantling of the supply air unit: Turn
the unit and pull straight out.
63 125250500 1K 2K 4K 8K
VS 125
4
VS 160
15 3
-2 -3
1
1
0
2
-2 -7 -13 -20
-4 -11 -20
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
Elegant-VS
Size
Art No
125
6831
160
6832
Air flow range (m /h, l/s) and throw I0,2 (m)
3
6
9
12
10
14
m3/h
60
90
120
160
l/s
17
25
33
44
56
∆Pt - Pressure drop (Pa)
23
70
17
32
66
101
200
20-25
30
35-40
dB (A)
115
18 | Air valves
Elegant-VI
Supply air valve
Function
The Elegant has been especially developed for
providing a draught-free air supply from the
rear walls of offices, hotel rooms etc. The VI
or VS version with guide jet is recommended
for cooled air. The guide jet prevents the air
stream from falling into the occupied zone
before it has reached an acceptable temperature. Max. temperature difference ΔT 10K is
permissible. The Elegant is also suitable for
VAV systems, as the distribution pattern is
maintained across the entire flow area.
Dimensions
Design
The Elegant is manufactured from steel and
consists of a convex front plate with perforations and guide jet opening. The front plate is
finished in the standard white powder-coating
(RAL 9010-80).
160
6830
D
115 89
Elegant VI-160
158 198 124 86
125250500 1K 2K 4K 8K
VI 125
19 13 5
1
0
0
2
VI 160
15 11 6
0
1
0
1
Sound power level, LW
LW(dB) = LpA + Kok (LpA = diagram Kok = table)
correction factor Kok
Mid-frequencyband,Hz
Elegant-VI
6829
C
165 Mid-frequency band, Hz
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
Art No
ØB 123 Mounting
The diffuser is installed directly onto the spiral
duct. Dismantling of the supply air unit: Turn
the unit and pull straight out.
Size
ØA
Elegant VI-125
Sound attenuation, ΔL (dB)
Versions
The Elegant is available in sizes Ø125 and
Ø160, and in five different versions: VI has a
perforated front plate, guide jet, test point.
125
Air flow range (m /h, l/s) and throw I0,2 (m)
3
6
9
12
10
15
m3/h
60
90
120
170
l/s
17
25
33
47
61
∆Pt - Pressure drop (Pa)
23
70
19
34
78
124
220
20-25
30
35-40
dB (A)
119
63 125250500 1K 2K 4K 8K
VI 125
11 -6 -5 -1
0
-4 -7 -15
VI 160
8
0
-5 -12 -20
-1 -1
1
Air valves | 19
Elegant-VT
Supply air valve
Function
The Elegant has been especially developed
for providing a draught-free air supply from
the rear walls of offices, hotel rooms etc.
Maximum temperature difference ΔT 10K is
permissible. The Elegant is also suitable for
VAV systems, as the distribution pattern is
maintained across the entire flow area.
Design
The Elegant is manufactured from steel and
consists of a convex front plate with perforations and guide jet opening. The front plate is
finished in the standard white powder-coating
(RAL 9010-80).
Dimensions
165
33.2
59.3
Versions
The Elegant is available in sizes Ø100 and
Ø125, and in five different versions : VT has
a perforated front plate. Can be mounted
directly in a T-piece or pre-embeded bend.
The air flow can be adjusted by using different
number of plastic plugs.
Sound attenuation, ΔL (dB)
With the pressure
distribution plate in the
back of the diffuser, the
airflow can be adjusted
by using different number of plastic plugs.
Mid-frequency band, Hz
63 125250500 1K 2K 4K 8K
VT 100
9
-7 -3
0
-1 -6 -7 -11
VT 125
9
-3 -1
1
0
-8 -10 -15
Sound power level, LW
Mounting
The diffuser is installed directly onto the spiral
duct. Dismantling of the supply air unit : Turn
the unit and pull straight out.
LW(dB) = LpA + Kok (LpA = diagram Kok = table)
VT 100
9
-7 -3
0
-1 -6 -7 -11
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
VT 125
9
-3 -1
1
0
correction factor Kok
Mid-frequencyband,Hz
63 125250500 1K 2K 4K 8K
-8 -10 -15
Elegant-VT
Size
Art No
100
6202
125
6207
Air flow range (m /h, l/s) and throw I0,2 (m)
3
10
16
20
4
5
m3/h
45
60
75
l/s
12
17
21
22
∆Pt - Pressure drop (Pa)
11
34
6
37
28
50
80
20-25
30
35-40
dB (A)
57
20 | Air valves
BHC
Return air self regulating motorized valve
with presence and humidity sensor
Function
BHC 100 is a motorized damper with integrated motion (PIR) and humidity sensor for bathroom
installations. The extract units may be installed either on the wall (in a vertical or horizontal position), or the ceiling. The humidity and the motion sensors work independently of each other. The
damper opens whenever motion is indicated and closes 25 min after the last indication. The humidity sensor controls the fully modulating damper from RH 30% to 75%. The movement sensor
is dependent on a power supply and the BHC uses either a 9V battery or 12V AC. The humidity
sensors will open the damper regardless of a power supply.
Spigot Versions
Ø100 mm and Ø125 mm (with adapter).Ø80 mm (with special sleeve Ø80 mm). note: the BPD
is delivered with adapter Ø100 mm. The BPD dampers are especially useful in constant pressure
systems for example block of flats.
Accessories
100/125 inlet adapter and 12/9 v transformer.
Airflow/Pressure Chart
enables to adapt the fixed shutter position. supplied on installation instruction)
Type
BHC-100
Transformer-12V
Inlet adapter Ø100- Ø125
Art No
7178
7387
7484
Dimensions
More Standard and better longevity:
2 x 1.5 Volts AAA LR03 Batteries.
Buzzer:
Enables to inform the occupant when the
battery needs to be replaced (i.e. when the
battery level is below 2.2V). This buzzer rings
when the presence sensor or the switch is
activated.
Possibility to connect a dedicated “CAL” for
12VAC supply.
Air valves | 21
AL
Return air self regulating valve
Function
Intended to equip the facilities housing MEV, housing and local service, the range of the AL
extraction air valves self meets the regulatory requirements while combining aesthetics and
technology. Design fluid grid in several colors, reliability mechanical, proven functionality, performance ventilation and noise are the major assets of all AL air valves series. The AL air valves
meets the residential requirements of the NF MEV. Single or double speed, both models perfectly
consistent allow a uniform architectural treatment between kitchen, bathroom and WC.
Model
Produced in white polystyrene(standard), the AL air valve, installed in WC room and baths, provides a flow of extraction determined.
Operation
The regulator consists of a rigid component and ensures a determined air flow of extraction
within a range of pressure between 50 and 160 Pascals.
Design
1. Collar Ø 125 with lip seal (delivered
separately).
2. Body of the valve.
3. Regulator.
4. Removable grille.
AL is available in the following air flow: 15, 30, 45, 60, 75, 90, 120 and 150 m3/h
Maintenance
To maintain maximum efficiency, it is necessary to conduct a periodic cleaning:
Acoustic charecteristics
• Remove the grille (4) and regulator (3) the body of the valve (removed from the sleeve if
necessary).
• The sleeve (1) shall not be detached from the duct.
• Clean all either in the upper part of a dishwasher, either manually with soap and water, nothing
disassemble the regulator.
• Walk up the valve.
AL
Installation
The AL is installed in vertical walls by simple fitting onto a 125 Ø sleeve fixed on the aeration
duct. The lip seal ensures that the sleeve is securely fixed and watertight. Possible fitting with Ø
99, 116, 150 or 160 mm. When ceiling mounted, an adapted sleeve can be used (125 Ø, 3-claw
plasterboard sleeve, or 125 Ø plastic sleeve for penetrating slabs for use with the 125 Ø sleeve).
100
Ø125
Ø125
155
3-Claw plasterboard sleeve
275
Slab penetration sleeve (Polystyrene)
LW dB(A)
70Pa
100Pa
15 m3/h
19
27
31
34
30 m3/h
27
30
33
36
45 m3/h
27
33
34
37
Type
AL 15
AL 30
AL 45
AL 60
AL 75
AL 90
AL 120
AL 150
130Pa 160Pa
Art No.
35028
35029
35030
35031
35032
35033
35034
35035
22 | Air valves
AE
Return air self regulating motorized valve
Function
Intended to equip the facilities housing MEV, housing and local service, the range of the AE
extraction air valves self meets the regulatory requirements while combining aesthetics and
technology. Reliability mechanical, proven functionality, performance ventilation and noise are
the major assets of all AE air valves series. The AE air valves meets the habitat requirements of
the NF MEV. Single or double speed, both models perfectly consistent allow a uniform architectural treatment between kitchen, bathroom and WC.
Model
Produced in white polystyrene(standard), the AE air valve, installed in WC room and baths, provides a flow of extraction determined.
Operation
The regulator consists of a rigid component and ensures a determined air flow of extraction
within a range of pressure between 50 and 160 Pascals.
Principals
The extract is always on tension thanks to a connection normally switched off.An impulse on the
switch creates a power cut which opens the extract to its maximumflow (opening time: around
40 seconds).The 230 V supply of the extract is provided by two wires (2 x 1.5 mm²) to be
connected,going out by the back of the support plate (see drawing). This must have a protectiondevice clearly identified on the electric board - class II electric appliance -.After taking out the
casing vent (2), unscrew the box (5). The wires go through a cableat the back of the plate and
linked to the connection box.The support-plate of the extract must be screwed on the wall.On
the first stand-by mode, the AE valve will normally extract the maximum air-flow.
Design
4
3
5
1
2
1. 2. 3. 4. 5. Removable louver grill
Casing vent
Support plate with sleeve and rubber ring
Control module
Electric connection box
Acoustic charecteristics
AE
LW dB(A)
70Pa
100Pa
130Pa 160Pa
15/30 m3/h
24
27
30
30/60 m3/h
25
31
34
36
45/120 m3/h 27
33
34
37
Wiring
Before any operation on the support plate (3), the tension must be switched off (the time-switch
being constantly on stand-by mode) The tension is made through a push button specially dedicated to this specification.
Maintenance
The Extract AE must be periodically cleaned (at least twice a year) in order to keep their entire
efficiency. Cleaning procedure :• Remove the casing vent (2) of the plate (3) and remove the
flap (4).• The plate (3) linked to the duct must not be touched. The elements on it do not need
any cleaning.• Clean the casing vent (2), the grill (1) and the control module (4)with soapy water
then rince.• Fix back the control momule (4)• Fix back the casing part (2) on the plate (3)
Ceiling mounting
Ceiling mounting, the unit can be fixed on the ceiling using a three-claw plasterboard sleeve or a
125 Ø plastic sleeve for penetrating slabs. A ceiling mounting needs the using of a return angle
guide for the concerned models.
Ø125
48
100
Ø125
Ø125
275
155
Three-claw plasterboard sleeve
Ø 125 :
17
plastic sleeve for penetrating
slabs :
Return angle guide :
200
Przepływ powietrza q
120
150
100
60
45
50
0
30
15
40
60
80
100
120
140
160 Pa
Spadek ciśnienia ∆pt
Type
AE 15/30
AE 30/60
AE 45/120
Art No
31412
31413
31414
33
Air valves | 23
VTK
Self adjusting inlet air valve
Function
This self-adjusting fresh air vent has a temperature sensitive thermostat bulb which
regulates the vent plate, adjusting the air gap
and air flow according to the outside temperature. When it is set to ‘automatic’ the valve
disc reduces the air supply when the outside
temperature falls, and increases the flow
when the outside temperature rises. Spacers
for maintaining minimum air flow are available
as an accessory. Supplied complete with a
thermostat bulb for temperatures between -5
and +10°C, plus a wall duct and external grille.
Max wall thickness is 270 mm.
Accessories
- Spacer ring 2mm (100 & 160mm)
- Spacer ring 4mm (100 & 160mm)
- Filter (100 & 160mm)
Dimensions
ØA
ØB ØC VKT 80
80
40 147 ØD
85
VKT 100
95 40
147 104
VKT 160
157 47 207 163
VTK
Size
Art No
80
5657
100
5658
160
5659
Ring2mm
Ring4mm
Q Min (m3/hr - l/s)
Min Pressure (pa)
QMax (m3/hr - l/s)
Max Pressure (pa)
5406
5407
20 / 6
3
100 / 28
63
5664
5406
5407
20 / 6
3
100 / 28
64
5567
5406
5407
30 / 8
3
165 / 46
80
Filter
Not Available
24 | Air valves
OVE
Transfer air valve
Function
The OVE can be used in all types of premises.
In the OVE the outside casing of the air transfer device is acoustically insulated to reduce
the risk of sound interference.
Dimensions
Design
The OVE is manufactured from steel and the
outside casing has a white powder-coated finish (RAL 9010-80). Available in the following
sizes: Ø100, Ø125, Ø160 and Ø200.
6183
6184
160
6185
200
6186
Air flow range (m3/h, l/s) and ∆Pt - Pressure (Pa)
75
22
138
80
24
176
45
91
15
33
132
3
m /h
80
120
160
235
460
l/s
22
33
44
65
128
Acoustic performance in dB(A):
20-25
100 70-145
W
OVE 125
175
62 125 70-145
OVE 160
210
72 160 70-145
OVE 200
250 72 200 70-145
63 125250500 1K 2K 4K Rw
OVE 125 19 20 24 22 23 30 32 25
OVE 160 19 19 24 21 25 30 32 26
OVE 200 18 20 19 21 26 30 32 26
OVE
125
Øh 62 OVE 100 19 21 25 23 22 31 32 25
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
100
D
150
Ordering Code
The ordering code is OVE - 100.
Art No
ØC
OVE 100
The diagram shows
Air volume (l/s and m3/h), total pressure (Pa)
and sound pressure level [dB(A)].
Mid-frequencyband,Hz
Mounting OVE
The two mounting rings screws directly onto
the wall or are fitted together with the bolting
that are included, after which the outside casing can be pressed into place.
Size
30
35-40
Air valves | 25
OVR
Transfer air valve
Function
The OVR can be used in all types of premises.
In this both the outside casing and the middle
section are acoustically insulated, providing a
high level of sound attenuation. The OVR is
also lightproof.
Dimensions
Design
The OVR is manufactured from steel and the
outside casing has a powder-coated finish in
standard white (RAL 9010-80). The acoustic
insulation is fibre-free. Available in two sizes:
Ø125 and Ø160.
ØC
D
Øh OVR 125
175
62 125 70-145
W
OVR 160
210 72 160 70-145
The diagram shows
Air volume (l/s and m3/h), total pressure (Pa)
and sound pressure level [dB(A)].
Mid-frequencyband,Hz
Mounting OVR
Two mounting rings are included which are
fitted onto the middle section without the
need for tools. Screw the mounting rings
directly onto the wall or fit them together with
the bolting that are included, after which the
outside casing can be pressed into place.
63 125250500 1K 2K 4K Rw
OVR 125 15 35 29 22 24 24 32 24
OVR 160 15 35 29 22 24 24 32 24
Ordering Code
The ordering code is OVR - 125.
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
OVR
Size
Art No
Air flow range (m3/h, l/s) and ∆Pt - Pressure (Pa)
125
6187
160
6188
14
3
m /h
80
120
160
260
l/s
22
33
44
72
53
88
49
Acoustic performance in dB(A):
20-25
113
30
35-40
26 | Air valves
OVX
Transfer air valve
Function
The OVX is an air transfer device with rectangular front panels which is suitable for use in
all types of premises.
Dimensions
0
B
A
L
Mounting
The frame screws directly onto the wall, after
which the outside casing can be suspended.
20 50 100 150 lis.
H X L = size of hole required
Ordering Code
OVX - 300 with dimensions.
H
L
130 50 300
OVX 500
570
130
50 500
OVX 700
770
130
50 700
OVX 850
920 130
50 850
The diagram shows
Air volume (l/s and m3/h), total pressure (Pa)
and sound pressure level [dB(A)].
Mid-frequencyband,Hz
H
Sound reduction factor
The sound reduction factor (R) indicates a
wall’s total sound reduction included the air
transfer device. The following definitions are
used to calculate R:
B
370
0
Design
The air transfer device consists of two frames
and two front panels, which can be installed
whatever the thickness of the wall. Both front
panels are acoustically-insulated, making this
air transfer device suitable for use in premises
where low sound levels are required. The
device is manufactured from steel and the
front panels have a white powder-coated finish (RAL 9010-80). The OVX is available in the
following sizes: 300, 500, 700 and 850.
A
OVX 300
63 125250500 1K 2K 4K Rw
OVX 300
OVX 500
OVX 700
OVX 850
39
39
36
36
24
23
19
21
23
22
20
19
23
23
19
22
32
32
31
29
52
50
42
48
71
71
68
69
30
30
27
27
1. Use the formula
Where R0 = The wall’s reduction factor (dB)
depending on the wall material (obtainable
from the supplier. Rw The air transfer device’s
reduction factor (dB), obtained from the table.
2. Use the diagram
where ΔR=The difference between the reduction factors of the wall and the air transfer
device.
A = The wall’s area (m2).
Rm= The decrease of the wall’s reduction factor
due to the air transfer device.
3. Use the formula
R = R0 - Rm
Where R = The sound reduction factor (dB).
Where R0 = The wall’s reduction factor (dB)
depending on the wall material (obtainable
from the supplier).
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
Rm = The decrease of the wall’s reduction
factor due to the air transfer device reduction
with the air transfer device installed.
OVX
Size
Art No
300
6189
500
6190
700
850
Air flow range (m3/h, l/s) and ∆Pt - Pressure (Pa)
26
61
161
23
63
172
6191
25
72
128
6192
17
47
81
3
m /h
120
180
290
465
615
l/s
33
50
81
129
171
Acoustic performance in dB(A):
20-25
30
35-40
Wall grilles and diffusers | 27
NOVA-A
Double defflection grille for supply and return air
Function
The grille directs the air with help of deflectors to both horizontal and vertical directions. The
damper or plenum box provides even distribution of air through the whole grill.
Description
NOVA-A is rectangular aluminium grille with adjustable deflectors. NOVA-A grille can be used in
commercial and industrial premises and can be used for supply, or return air. It is intended for
mounting into wall, ceiling, or into window sill. NOVA-A is supplied with springs as a standard.
Design
NOVA-A grille is manufactured from aluminium profiles white painted to RAL 9010.
Mounting
The NOVA-A grille can be mounted directly into a duct or wall with mounting frame and springs.
Ordering Code
The ordering code is NOVA-A-Size
Selection Table
Table below shows the general product performance for more details please see selection software or contact your local systemair office.
Accessories
R1 NOVA damper
Opposed blade damper Air volume flow can be
adjusted with turning the screwdriver, Depth
of the grille is 40 mm.
NOVA UR Mounting Frame
First the mounting frame is fixed to wall or
duct with screws or detachable arms, then the
grille is fixed with springs to mounting frame.
PRG Plenum box
Insulated plenum box with inlet measuring
damper control
PRG 1 = Rear connection
PRG 2 = Side connection
PRG 3 = Top/bottom connection
Dimensions
28 | Wall grilles and diffusers
NOVA-A
Size
Art No
NOVA-A
UR
R1
PRG1
PRG2
PRG3
200 x 100
41232
41266
41287
6211
200 x 150
41233
42112
42016
6220
6426
300 x 100
41235
41267
41288
6212
6221
6427
400 x 100
41237
41269
41290
6214
6223
6428
Air flow range (m3/h, l/s) and throw I0,2 (m)
7
10
B505
∆Pt - Pressure drop (Pa)
9
19
33
8
14
13
17
6
16
29
8
13
18
7
18
31
18
7
18
24
m3/h
150
225
300
9
375
16
500
575
20-25
30
35-40
l/s
42
62
83
104
139
160
dB (A)
NOVA-A
Size
Art No
NOVA-A
UR
R1
PRG1
PRG2
PRG3
500 x 150
41241
41273
41294
6217
6226
6432
400 x 200
41239
41271
41292
800 x 100
41249
41281
41299
600 x 150
41245
41277
41297
1000 x 100
41228
41263
41284
300 x 150
41236
41268
41289
6213
500 x 100
41240
41272
41293
6216
300 x 200
41234
42124
42028
400 x 150
41238
41270
41291
600 x 100
41244
41276
41296
Air flow range (m3/h, l/s) and throw I0,2 (m)
B505
12
18
24
6
11
20
12
17
23
5
10
17
13
18
24
6
12
21
11
16
22
4
8
14
16
22
4
8
14
7
17
26
11
6222
6430
11
16
6225
6429
10
16
B505
6215
6224
21
20
9
6431
B505
18
9
18
10
∆Pt - Pressure drop (Pa)
15
7
15
25
20
4
15
19
20
4
15
19
4
11
22
30
35-40
21
3
m /h
375
500
575
725
825
1100
l/s
104
139
160
201
229
306
20-25
dB (A)
NOVA-A
Size
Art No
NOVA-A
UR
R1
PRG1
PRG2
PRG3
500 x 200
41242
41274
41295
6218
6193
6433
600 x 200
41246
41278
41298
6219
6194
6434
Air flow range (m3/h, l/s) and throw I0,2 (m)
13
20
14
19
19
800 x 150
41250
41282
41302
14
1000 x 150
41230
41264
41285
13
500 x 300
41243
41275
42049
800 x 200
41251
41283
41303
26
5
11
18
24
5
8
13
24
22
12
B505
21
16
∆Pt - Pressure drop (Pa)
21
5
8
13
30
3
9
16
29
3
8
14
29
4
7
13
600 x 300
41247
41279
42065
15
26
32
3
10
14
1000 x 200
41231
41265
41286
14
25
31
3
9
12
600 x 400
41248
41280
42066
35
3
8
13
m3/h
725
825
1100
1425
17
1950
27
2350
3000
20-25
30
35-40
l/s
201
229
306
396
542
653
833
dB (A)
Wall grilles and diffusers | 29
NOVA-L
Linear bar grille for supply and return air
Dimensions
(H-20)x(L-20)
s
HxL
Design
NOVA-L grille is manufactured from natural anodized aluminium profiles white painted to RAL
9010. Dimensions from 200x100 to 1000x200 are available on stock.
25
Description
NOVA-L is rectangular aluminium grille with fixed deflectors and can be used in commercial and
industrial premises. The grille is intended for supply, or return air. It is build into wall, ceiling, or
window sill. NOVA-L is supplied with springs as a standard. As an accessory there are plenum
boxes, mounting frames and dampers available.
Mounting
The NOVA-L grille can be mounted directly into a duct or wall with mounting frame and springs.
Ordering Code
The ordering code is NOVA-L-Size
Selection Table
Table below shows the general product performance for more details please see selection software or contact your local systemair office.
Accessories
R1 NOVA damper
Opposed blade damper Air volume flow can be
adjusted with turning the screwdriver, Depth
of the grille is 40 mm.
NOVA UR Mounting Frame
First the mounting frame is fixed to wall or
duct with screws or detachable arms, then the
grille is fixed with springs to mounting frame.
PRG Plenum box
Insulated plenum box with inlet measuring
damper control
PRG 1 = Rear connection
PRG 2 = Side connection
PRG 3 = Top/bottom connection
5
20
(H+30)x(L+30)
Function
The grille directs the air with help of horizontal deflectors. The damper or plenum box provides
even distribution of air through the whole grille.
30 | Wall grilles and diffusers
NOVA-L
Size
Art No
NOVA-L
UR
R1
PRG1
PRG2
PRG3
200 x 100
41304
41266
41287
6211
6220
6426
200 x 150
42905
42112
42016
300 x 100
41305
41267
41288
Air flow range (m3/h, l/s) and throw I0,2 (m)
6
B505
6212
6221
6427
∆Pt - Pressure drop (Pa)
9
13
11
26
59
7
10
15
10
24
46
7
10
15
10
24
46
400 x 100
41307
41269
41290
6214
6223
6428
9
13
17
13
25
44
300 x 150
41306
41268
41289
6213
6222
6430
8
11
16
9
17
32
6216
6225
6429
8
11
15
500 x 100
41309
41272
41293
300 x 200
42906
42124
42028
400 x 150
41308
41270
41291
600 x 100
41314
41276
41296
B505
6215
6224
9
6431
B505
16
20
7
15
28
7
22
34
10
13
17
10
17
28
10
14
17
10
19
31
30
35-40
m3/h
80
120
185
260
350
450
550
l/s
22
33
51
72
97
125
153
20-25
dB (A)
NOVA-L
Size
Art No
NOVA-L
UR
R1
PRG1
PRG2
PRG3
500 x 150
41310
41273
41294
6217
6226
6432
400 x 200
41313
41271
41292
800 x 100
41316
41281
41299
600 x 150
41315
41277
41297
1000 x 100
41319
41263
41284
500 x 200
41311
41274
41295
6218
6193
6433
600 x 200
41312
41278
41298
6219
6194
6434
800 x 150
41317
41282
41302
1000 x 150
41320
41264
41285
500 x 300
42907
41275
42049
800 x 200
41318
41283
41303
600 x 300
42908
41279
42065
1000 x 200
41321
41265
41286
600 x 400
41530
41280
42066
12
Air flow range (m3/h, l/s) and throw I0,2 (m)
∆Pt - Pressure drop
(Pa)
15
10
17
25
7
17
32
10
17
25
7
17
33
10
12
B505
18
16
15
11
23
18
17
10
24
16
23
12
20
13
12
19
20
13
17
32
7
20
29
23
7
14
20
25
6
19
28
6
18
27
7
12
26
22
16
B505
7
25
27
20
30
16
24
30
7
17
25
15
22
27
5
12
18
27
7
11
16
17
22
19
23
36
6
9
21
m3/h
350
450
550
775
950
1175
1450
2225
20-25
30
35-40
l/s
97
125
153
215
264
326
403
618
dB (A)
Wall grilles and diffusers | 31
NOVA-R
Non-vision return air grille
Dimensions
(H-20)x(L-20)
HxL
Design
NOVA-R grille is manufactured from natural anodized aluminium profiles white painted to RAL
9010. Deflectors are at 45° angle inclined downwards for anti-rain function with 20 mm pitch.
25
Description
NOVA-R is rectangular aluminium grille with fixed deflectors and can be used in commercial and
industrial premises. The grille is intended for return air. It is build into wall or ceiling. NOVA-R is
supplied with springs as a standard.
Mounting
The NOVA-R grille can be mounted directly into a duct or wall with mounting frame and springs.
Ordering Code
The ordering code is NOVA-R-Size
Selection Table
Table below shows the general product
performance for more details please see selection software or contact your local systemair office.
Accessories
R1 NOVA damper
Opposed blade damper Air volume flow can be
adjusted with turning the screwdriver, Depth
of the grille is 40 mm.
NOVA UR Mounting Frame
First the mounting frame is fixed to wall or
duct with screws or detachable arms, then the
grille is fixed with springs to mounting frame.
PRG Plenum box
Insulated plenum box with inlet measuring
damper control
PRG 1 = Rear connection
PRG 2 = Side connection
PRG 3 = Top/bottom connection
40
5
(H+30)x(L+30)
Function
The grille is used to intake the air from internal premises. Because of the inclined deflectors its
not possible to see through the grille. The damper or plenum box balances the air.
32 | Wall grilles and diffusers
NOVA-R
Size
Art No
Air flow range (m3/h, l/s) and DPt Pressure (Pa)
NOVA-R
UR
R1
PRG1
PRG2
PRG3
200 x 100
41140
41266
41287
6211
6220
6426
500 x 150
41519
41273
41294
6217
6226
6432
800 x 100
41527
41281
41299
200 x 150
41141
42112
42016
300 x 100
41512
41267
41288
6212
6221
6427
400 x 100
41515
41269
41290
6214
6223
6428
300 x 150
41513
41268
41289
6213
6222
6430
5
14
500 x 100
41518
41272
41293
6216
6225
6429
4
12
300 x 200
41514
42124
42028
400 x 150
41516
41270
41291
600 x 100
41522
41276
41296
Acoustic performance in dB(A):
4
B505
10
29
2
12
22
2
12
22
6
12
B505
6215
6224
6431
B505
20-25
30
4
10
18
4
10
18
20
21
18
3
9
14
4
11
16
4
12
18
3
m /h
40
60
100
140
180
220
270
360
l/s
11
17
28
39
50
61
75
100
35-40
NOVA-R
Size
Art No
UR
R1
400 x 200
41517
41271
41292
600 x 150
41523
41277
41297
1000 x 100
41137
41263
41284
500 x 200
41520
41274
41295
6218
6193
6433
3
600 x 200
41524
41278
41298
6219
6194
6434
2
7
800 x 150
41528
41282
41302
3
10
1000 x 150
41138
41264
41285
500 x 300
41521
41275
42049
800 x 200
41529
41283
41303
600 x 300
41525
41279
42065
1000 x 200
41139
41265
41286
600 x 400
41526
41280
42066
Acoustic performance in dB(A):
20-25
PRG1
PRG2
Air flow range (m3/h, l/s) and DPt Pressure (Pa)
NOVA-R
PRG3
4
B505
5
12
18
7
4
19
12
18
11
16
16
15
4
B505
9
14
4
9
14
4
9
13
3
6
9
4
8
13
3
30
35-40
8
12
3
m /h
220
270
360
450
550
675
825
1050
1325
l/s
61
75
100
125
153
188
229
292
368
Wall grilles and diffusers | 33
NOVA-F
Non-vision return air grille with G3 filter
Mounting
The NOVA-F grille is mounted directly into a duct or wall with screws via holes in the steel box.
The grille is then closed by the hinges and securely closed with the knob.
Ordering Code
The ordering code is NOVA-F-Size
Selection Table
Table below shows the general product
performance for more details please see selection software or contact your local systemair office.
Accessories
PRG Plenum box
Insulated plenum box with inlet measuring
damper control
PRG 1 = Rear connection
PRG 2 = Side connection
PRG 3 = Top/bottom connection
25
(H-20)x(L-20)
40
5
(H+30)x(L+30)
Design
NOVA-F grille is manufactured from natural anodized aluminium profiles white painted to RAL
9010. The box is from galvanized steel equipped with mesh screen. Inside the box is an area for
filter. Standard supplied filter is a G–3 class filter, manufactured from white coloured polyester,
with thickness of 12 – 15 mm. Temperature resistance of the filter is up to 100°C with middle
seclusiveness (Am) of 92,5%..
F i l t e r
Description
NOVA-F is rectangular aluminium grille with fixed deflectors and galvanized steel box for filter. It
can be used in commercial and industrial premises. The grille is intended for filtering the return air
and can be build into wall or ceiling. NOVA-F is supplied with hinges and knob as a standard.
Dimensions
HxL
Function
The grille is used to intake the air from internal premises and cleans the air with included filter.
This safes money and time because it’s easier to clean the filter of the grille instead the whole
duct section and the AHU filter. The filter can be checked in a very convenient way by opening
the grille and changing the filter if necessary. Because of the inclined deflectors it’s not possible
to see through the grille.
34 | Wall grilles and diffusers
NOVA-F
Size
Art No
200 x 100
42885
200 x 150
300 x 100
400 x 100
300 x 150
Air flow range (m3/h, l/s) and DPt Pressure(Pa)
3
11
24
42886
3
9
22
42887
3
9
22
42890
5
12
42888
4
500 x 100
42893
1
300 x 200
42889
4
8
13
400 x 150
42891
4
11
17
600 x 100
42897
5
12
19
14
20
11
18
18
m3/h
40
60
90
140
180
220
270
l/s
11
17
25
39
50
61
75
Acoustic performance in dB(A):
20-25
30
35-40
NOVA-F
Air flow range (m3/h, l/s) and DPt Pressure(Pa)
Size
Art No
500 x 150
42894
400 x 200
42892
800 x 100
42902
600 x 150
42898
5
1000 x 100
42882
3
500 x 200
42895
4
600 x 200
42899
800 x 150
42903
5
10
18
3
11
5
17
10
18
7
18
11
17
10
15
2
7
10
3
10
15
3
m /h
180
220
270
360
435
535
l/s
50
61
75
100
121
149
Acoustic performance in dB(A):
20-25
30
35-40
NOVA-F
Air flow range (m3/h, l/s) and DPt Pressure(Pa)
Size
Art No
1000 x 150
42883
500 x 300
42896
4
800 x 200
42904
4
600 x 300
42900
4
1000 x 200
42884
3
600 x 400
42901
4
9
15
10
14
10
14
6
15
8
13
3
8
12
3
m /h
360
435
535
685
835
1035
1335
l/s
100
121
149
190
232
288
371
Acoustic performance in dB(A):
20-25
30
35-40
Wall grilles and diffusers | 35
Sinus-BR
Nozzle diffuser with rear entry plenum
Function
Sinus-B series of wall-mounted nozzle diffusers are built to achieve
very high induction combined with changeable air distribution patterns. Sinus-B consists of a front plate with graded perforation above a
number of nozzles (size 35 mm) and a plenum box with an adjustment
damper. The plenum box is fitted with a powder coated neck flange
facilitating mounting and taking up tolerances from the recess and
makes a nice fit with the wall. The combination of nozzles and perforation achieves outstanding induction of room air. Maximum temperature
difference for cooled air ∆T 14 K.
Dimensions
Mounting
A recess must be made in the wall in accordance with the dimension
table and drawing. The plenum box is placed in the recess and pushed
inwards till it stops against the plenumbox’s neck flange. From the
backside of diffuser bend the metal fixing bands to each side and fix to
back side of wall with screws. The front plate is fitted into the plenum
box by first fitting the top hook-plate into its correspondent on the
plenum box and then bending the bottom edge smoothly inwards and
fitting the bottom hook-plate with the plenum’s bottom. Gently slide
the front plate downwards till it stops.
Sinus
øK
A
B
C
D
E
F
H
I x J*
-BR-100
400
149
227
-
444
199
34
404x154
99
-BR-125
500
199
227
-
544
249
38
504x204
124
-BR-160
500
199
227
-
544
249
38
504x204
159
-BR-200
700
249
227
-
744
299
42
704x254
199
Sound attenuation, DL (dB)
Sound power level, Lw
Mid-frequency band, Hz
Sinus Lw(dB) = LpA + Kok (LpA = diagram Kok = table)
63 125 250 500 1k 2k 4k 8k
-BR-100 21 17 12 ØK
9
correction factor Kok
Mid-frequency band, Hz
1
1 3 6
-BR-125 22 16 10 10 1 2 3 5
Sinus -BR-160 20 14 10 9
1
2 3 5
-BR-100 14 1 6
1 -3 -8 -12 -12
-BR-200 20 12 7 6
1
2 3 5
-BR-125 10 -1 5 1 -1 -8 -12 -16
-BR-160 14 -1 3 3 -3 -11 -18 -20
-BR-200 10 -1 4 2 -3 -9 -11 -13
63 125 250 500 1k 2k 4k 8k
Sinus-BR
Size
Art No
100
6735
125
6736
160
6737
200
6738
Air flow range (m /h, l/s) and throw I0,2 (m)
∆Pt - Pressure drop (Pa)
3
3
4
6
4
5
8
5
7
9
14
42
71
15
36
76
16
40
65
5
7
10
15
31
58
m3/h
80
120
160
235
310
435
20-25
30
35-40
l/s
22
33
44
65
86
121
dB (A)
36 | Wall grilles and diffusers
Sinus-BS
Nozzle diffuser with side entry plenum
Function
Sinus-B series of wall-mounted nozzle diffusers are built to achieve
very high induction combined with changeable air distribution patterns. Sinus-B consists of a front plate with graded perforation above a
number of nozzles (size 35 mm) and a plenum box with an adjustment
damper. The plenum box is fitted with a powder coated neck flange
facilitating mounting and taking up tolerances from the recess and
makes a nice fit with the wall. The combination of nozzles and perforation achieves outstanding induction of room air. Maximum temperature
difference for cooled air ∆T 14 K.
Dimensions
Mounting
A recess must be made in the wall in accordance with the dimension
table and drawing. The plenum box is placed in the recess and pushed
inwards till it stops against the plenumbox’s neck flange. From the
backside of diffuser bend the metal fixing bands to each side and fix to
back side of wall with screws. The front plate is fitted into the plenum
box by first fitting the top hook-plate into its correspondent on the
plenum box and then bending the bottom edge smoothly inwards and
fitting the bottom hook-plate with the plenum’s bottom. Gently slide the
front plate downwards till it stops.
Sinus
øK
A
B
C
D
E
F
H
I x J*
ØK
-BS-100
400
149
283
208
444
199
34
404x154
99
-BS-125
500
199
307
221
544
249
38
504x204
124
-BS-160
500
199
339
238
544
249
38
504x204
159
-BS-200
700
249
379
258
744
299
42
704x254
199
Sound attenuation, DL (dB)
Sound power level, Lw
Mid-frequency band, Hz
Sinus 63 125 250 500 1k 2k 4k 8k
Size
Art No
6731
125
6732
160
6733
200
6734
Mid-frequency band, Hz
8
3
4 4 5
-BS-125 21 16 11 6
3
3 4 5
Sinus -BS-160 19 14 11 7
4
3 3 4
-BS-100 13 2 6
1 -2 -8 -13 -13
-BS-200 19 11 8 5
4
2 4 5
-BS-125 10 1 6
2 -1 -10 -17 -19
-BS-160 8 1
5
2 -2
-BS-200 8 3
3
2 -2 -9 -13 -15
Air flow range (m /h, l/s) and throw I0,2 (m)
∆Pt - Pressure drop (Pa)
3
3
correction factor Kok
-BS-100 21 17 12 Sinus-BS
100
Lw(dB) = LpA + Kok (LpA = diagram Kok = table)
4
6
4
5
7
5
6
9
10
40
70
17
35
62
14
35
65
5
7
10
10
34
56
m3/h
80
120
160
220
310
435
20-25
30
35-40
l/s
22
33
44
61
86
121
dB (A)
63 125 250 500 1k 2k 4k 8k
-7 -12 -13
Linear wall & ceiling diffusers | 37
Hella-A
Linear slot diffuser
Dimensions
Function
Hella-A linear slot diffusers are designed for cooling or heating in standard office height of min
2.5m to 3.5m entrance halls. Ideal supply temperature to ambient should not exceed 12K to
ensure low terminal velocities in the occupied zone. Hella-A slot diffusers have deflectors which
slide from left to right easily to assure a good air outlet pattern adjustment
Design
Hella-A slot diffusers are manufactured from profiled aluminium and have as standard black
deflectors and hit and miss damper in galvanized steel. Slot diffusers are painted to RAL 9010 as
standard
Mounting
Slot diffusers contain a mounting bridge as standard which can be mounted directly inside the
duct, or to be easily mounted to the plenum box.
Selection table
Table below shows the general product performance for more details please see selection software or contact your local Systemair office
Dimensions Table
Type
1
2
3
4
H (mm)
221
272
374
374
B (mm)
76
114
152
190
E (mm)
47
87
127
167
D
125
160
200
200
F (mm)
76
94
114
114
G (mm)
60
98
136
174
Hella
Size
Art No
Air flow range (m3/h, l/s) and throw I0,2 (m)
Hella-A
-PB
600-1
60494
42349
600-2
60498
42353
600-3
60502
42357
600-4
60506
42361
1200-1
60495
42350
1200-2
60499
42354
2
1200-3
60503
42358
1
1200-4
60507
42362
1800-1
60496
42351
1800-2
60500
42355
1800-3
60504
42359
1800-4
60508
42363
2400-1
60497
42352
2400-2
60501
42356
2400-3
60505
42360
2400-4
60509
42364
1
2
2
1
2
2
3
2
3
2
1
2
3
3
3
3
3
3
3
2
2
∆Pt - Pressure drop (Pa)
2
3
4
3
1
3
3
2
3
3
2
2
3
3
4
3
2
3
4
2
3
4
2
3
2
36
54
7
14
37
9
20
35
10
26
38
7
14
37
10
26
38
2
15
23
6
13
22
9
20
35
2
15
23
4
8
14
4
8
14
10
26
38
6
13
22
4
8
14
4
4
8
13
m3/h
50
70
80
140
215
265
325
415
540
690
20-25
30
35-40
l/s
14
19
22
39
60
74
90
115
150
192
dB (A)
38 | Floor & step diffusers
Elegant-AT
Supply step diffuser
Function
The Elegant has been especially developed
for providing a draught-free air supply from
the rear walls of offices, hotel rooms etc. The
guide jet prevents the air stream from falling
into the occupied zone before it has reached
an acceptable temperature. Max. temperature
difference ΔT 10K is permissible. The Elegant
is also suitable for VAV systems, as the distribution pattern is maintained across the entire
flow area.
Dimensions
Design
The Elegant is manufactured from steel and
consists of a convex front plate with perforations and guide jet opening. The front plate is
finished in the standard white powder-coating
(RAL 9010-80).
125
6966
D
111 87
Elegant AT 125
123 165 115 89
Mid-frequencyband,Hz
Elegant-AT
6965
C
165 correction factor Kok
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
Art No
ØB 98 LW(dB) = LpA + Kok (LpA = diagram Kok = table)
Mounting
The diffuser is installed directly onto the spiral
duct. Dismantling of the supply air unit: Turn
the unit and pull straight out.
Size
ØA
Elegant AT 100
Sound power level, LW
Versions
The Elegant is available in sizes Ø100, Ø125
and Ø160, and in five different versions:
Elegant AT has a perforated front plate, black.
100
Air flow range (m /h, l/s) and throw I0,2 (m)
3
4
4
5
4
4
m3/h
45
60
75
l/s
12
17
21
25
∆Pt - Pressure drop (Pa)
68
112
5
47
78
110
90
20-25
30
35-40
dB (A)
158
63 125250500 1K 2K 4K 8K
AT 100
10 -5 -4
1
AT 125
13 1
-1 -1 -5 -6 -14
0
-1 -6 -10 -18
Floor & step diffusers | 39
SFD
Floor Diffuser
Description
Circular diffuser with swirl air supply, suitable
for false floor installation. Diffuser slots are
designed to ensure a swirl air supply with
high levels of induction, achieving reduced air
velocities and a moderate temperature gradient in the occupied zone. The diffuser may be
used in rooms with a variable or constant air
volume.
Product Characteristics
- Manufactured in aluminium
- Manufactured in sheet steel
- Sheet steel drip trap and swirl unit
- High levels of induction
- Simple to clean
- Can be used with connection plenum
Vertical
throw
Type
SFD : Standard finish in milled aluminum
SFD-RAL : Painted to RAL color upon request
Horizontal
throw
Model
ØA
ØB
C
1 DIFFUSER
150
190
150
225
500 200
240
200
275
1 SPIGOT Ø100
2 DIFFUSERS
1000
2 SPIGOT Ø100
L
3 DIFFUSERS
4 DIFFUSERS
1500
2000
2 SPIGOT Ø125
2 SPIGOT Ø125
E
MAXIMUM
32
32
MINIMUM
14
14
SFD
Size
Art No
SFD
-PB
150
42453
42455
200
42454
42456
Air flow range (m3/h, l/s) and throw I0,2 (m)
0.7
1.2
1.6
∆Pt - Pressure drop (Pa)
2.3
10
15
30
0.6
0.8
1.2
1.5
1.7
2
7
11
23
m3/h
30
50
70
100
130
150
170
20-25
30
35-40
l/s
8
14
19
28
36
42
47
∆T = -6K
When ∆T = -4K, then l0.2 x 1.2 ; ∆T = -8K, then l0.2 x 0.88
dB (A)
40 | Transfer & door grilles
NOVA-D
Non-vision transfer air door grille
Function
The grille fixed deflectors have pitch of 15 mm and this space allows the air to pass freely between both sides of the grille. Because of the V arranged deflectors it is not possible for light to
pass through.
Dimensions
min.26
max.42
20
5
Mounting
The NOVA-D grille can be mounted directly into an opening in the doors and fixed with screws via
pre punched bevelled holes.
Selection Table
Table below shows the general product
performance for more details please see selection software or contact your local systemair office.
NOVA-D
Air flow range (m3/h, l/s) and DPt Pressure (Pa)
Art No
200 x 100
42870
9
16
200 x 150
42871
9
16
31
300 x 100
42872
9
16
31
300 x 150
42873
9
18
400 x 200
42874
500 x 200
42875
600 x 300
42876
32
7
20
39
7
25
3
m /h
60
80
110
150
190
250
l/s
17
22
31
42
53
69
Acoustic performance in dB(A):
20-25
30
35-40
40
9
22
33
350
440
665
890
97
122
185
247
(H1+50)x(L+30)
25
H1x(L-20)
15
5
29
Ordering Code
The ordering code is NOVA-D-Size
Size
(H1+3)x(L-17)
Design
NOVA-D grille is manufactured from natural anodized aluminium profiles white painted to RAL
9010. The grille is supplied with counter frame for aesthetic installation in door openings. Both
grille and counter frame can be fixed via screws through bevelled holes
HxL
(H1+53)x(L+33)
25
Description
NOVA-D is rectangular aluminium door transfer grille with fixed deflectors and can be used in
commercial and industrial premises. The grille is intended for free passage of air through doors.
Transfer & door grilles | 41
NOVA-E
Egg crate return air grille
Design
NOVA-E grille is manufactured from aluminium profiles white painted to RAL 9010. If needed the
grille can be fitted into the T-bar ceiling with 600 x 600 mm square opening.
(H+30)x(L+30)
25
(H-20)x(L-20)
13
Description
NOVA-E is rectangular aluminium return grille with egg crate core which can be used in commercial and industrial premises. The grille is intended for return air and is build into wall or ceiling.
NOVA-E is supplied with springs as standard.
Dimensions
HxL
Function
The grille has a very large free area formed by 13 x 13 mm square openings and therefore is
ideal for return air. The damper or plenum box balances the air.
Mounting
The NOVA-E grille can be mounted directly into a duct or wall with mounting frame and springs.
40
Ordering Code
The ordering code is NOVA-E-200x100
5
Accessories
R1 NOVA damper
Opposed blade damper Air volume flow can
be adjusted with turning the screwdriver,
Depth of the grille is 40 mm.
NOVA UR Mounting Frame
First the mounting frame is fixed to wall or
duct with screws or detachable arms, then the
grille is fixed with springs to mounting frame.
PRG Plenum box
Insulated plenum box with inlet measuring
damper control
PRG 1 = Rear connection
PRG 2 = Side connection
PRG 3 = Top/bottom connection
NOVA-E
NOVA-E
Size
Art No
NOVA-E
-UR
-R1
PRG-1
PRG-2
PRG-3
41325
41266
41287
6211
6220
6426
200 x 150
42877
42112
42016
300 x 100
41326
41267
41288
6212
300 x 150
41327
41268
41289
6213
300 x 200
42878
42124
42028
400 x 100
41328
41269
41290
6214
6223
400 x 150
41329
41270
41291
6215
6224
400 x 200
41330
41271
41292
500 x 100
41331
41272
41293
6216
6225
500 x 150
41332
41273
41294
6217
500 x 200
41333
41274
41295
6218
500 x 300
42879
41275
42049
200 x 100
Not Available
B505
Size
Art No
NOVA-E
595 x 595
41334
-UR
-R1
600 x 100
41335
41276
41296
6221
6427
600 x 150
41336
41277
41297
6222
6430
600 x 200
41442
41278
41298
600 x 300
42880
41279
42065
6428
600 x 400
42881
41280
42066
6431
800 x 100
41443
41281
41299
800 x 150
41444
41282
41302
6429
800 x 200
41445
41283
41303
6226
6432
1000 x 100
41322
41263
41284
6193
6433
1000 x 150
41323
41264
41285
1000 x 200
41324
41265
41286
B505
B505
B505
PRG-1
PRG-2
PRG-3
42457
B505
6219
6194
B505
6434
42 | Duct mounted grilles & diffusers
NOVA-C
Single or double deflection grille for circular ducts
Dimensions
Function
NOVA-C grille series are designed specifically to be installed onto round ducts. The construction
allows the mounting of each grill height to various diameters of duct diameters. Adjustable single
or double deflection with opposed blade design allows for a full flexibility of the use and reduction in draft in occupied zone and facilitates the system balancing. All grilles are dispatched in
galvanized finish to bring harmonious look to the duct construction.
HxL
(H-20)x(L-20)
(H+30)x(L+30)
25
øD
Design
The frame, blades and the damper assembly are manufactured from roll-formed galvanized sheet
steel to bring robust construction.
Mounting
NOVA-C grilles are pre-punched through the front face frame to be mounted onto the duct with
self tapping screws.
E
NOVA-C-1
Optional Extras
Hit & Miss damper, single leaf damper, opposed blade damper and mounting frame
HxL
(H-20)x(L-20)
(H+30)x(L+30)
25
øD
Selection Table
Table below shows the general product performance for more details please see selection software or contact your local Systemair office
Ordering Code
The ordering code is NOVA-C-1-Size for single deflection or NOVA-C-2-Size for double deflection
Accessories
R1 NOVA damper Opposed blade damper Air
volume flow can be adjusted with turning
the screwdriver, Depth of the grille is 40 mm.
Height
of the grille
H
75
125
Duct penetration
E(mm)
NOVA-C-1 NOVA-C-2
32
54
32
54
E
NOVA-C-2
Duct Diameter
D(mm)
min
Max
150
450
315
900
NOVA-C
Size
Art No
NOVA-C-1
NOVA-C-2
R1
225x75
40775
40871
40973
225x125
40791
40887
40976
325x75
40776
40872
40974
325x125
40792
40888
40977
425x75
40777
40873
40975
Air flow range (m3/h, l/s) and throw I0,2 (m)
14
22
∆Pt - Pressure drop (Pa)
28
17
15
24
30
25
30
20
16
29
28
15
37
50
13
25
38
12
32
42
36
13
26
36
10
30
37
20-25
30
35-40
33
m3/h
225
300
375
525
615
675
775
l/s
62
83
104
146
171
188
215
dB (A)
Duct mounted grilles & diffusers | 43
Sinus-DC
Circular duct mounted nozzle difuser for supply air
Function
Sinus-DC is a nozzle diffuser for duct mounting. Sinus-DC (for circular duct) consists of a
front plate with several nozzles (size 57 mm)
and a check rail. The design of the nozzles enables the diffuser to achieve very high induction of room air. The Sinus-DC can be used for
both cooled and heated air. Max. temperature
difference: ΔT 10 K.
Mounting
Make a hole in the duct according to the dimension table. The diffuser is fitted in the hole
and fixed securely by screwing it to the duct.
Make sure that the opening of the check
rail is pointed against the air flow.
Dimensions
Sinus DC
A
Size, hole Fits, dust
C
-1001 1040
dim.
70
dim.
970x70 100-250
-1501 1540
70
1470x70 100-250
-1002 1040
125
970x135 160-315
-1502 1540
125
1470x135 160-315
-1003 1040
185
970x200 315-630
-1503 1540
185
1470x200 315-630
-1004 1040
200
970x250 315-630
-1504 1540
200
1470x250 315-630
Sound power level, Lw
Lw(dB) = LpA + Kok (LpA = diagram Kok = table)
Soundattenuation,
ΔL (dB)
correction factor Kok
Mid-frequency band, Hz
Sinus 63 125250500 1k 2k 4k 8k
Mid-frequency band, Hz
Sinus 63 125250500 1k 2k 4k 8k
-DC 100111 6
6
5
6
5
4
5
-DC 1001 4
8
7
1
-8 -14 -18 -13
-DC 100211 6
5
5
6
5
4
5
-DC 1002 5
9
9
2
-8 -15 -17 -12
-DC 100310 7
5
4
4
4
4
5
-DC 1003 8 11 8
1
-7 -15 -16 -13
-DC 1004 9
7
5
4
4
3
3
6
-DC 1004 12 14 7
1
-6 -14 -17 -12
-DC 150110 5
4
4
5
4
3
4
-DC 1501 4
7
8
2
-9 -14 -19 -16
-DC 150210 5
3
4
5
4
3
4
-DC 1502 3
7
9
2
-8 -17 -20 -16
-DC 1503 6
4
3
4
3
3
4
-DC 1503 7 10 8
2
-7 -15 -18 -15
5
-DC 1504 11 14 7
1
-5 -13 -17 -14
-DC 1504 6
2
5
4
3
3
2
3
Tolerance ±4 ±2 ±1 ±1 ±3 ±3 ±6 ±8
Sinus-DC
Size
Art No
1001
6649
1002
6651
1003
6653
1004
6655
1501
6650
1502
6652
1503
6654
1504
6656
Air flow range (m /h, l/s) and throw I0,2 (m)
∆Pt - Pressure drop (Pa)
3
2
3
5
4
6
9
6
11
13
7
3
4
11
14
6
5
7
10
6
10
13
8
11
7
16
25
4
18
34
4
26
37
5
20
32
4
11
23
6
17
26
5
17
27
15
8
15
29
m3/h
60
90
120
180
210
310
400
500
650
925
20-25
30
35-40
l/s
17
25
33
50
58
86
111
139
181
257
dB (A)
44 | Duct mounted grilles & diffusers
Sinus-DR
Rectangular duct or wall mounted nozzle diffuser for supply air
Function
Sinus-DR is a nozzle diffuser for duct ounting.
Sinus-DR (for rectangular duct) consists of a
front plate with several nozzles (size 57 mm)
and a check rail. The design of the nozzles enables the diffuser to achieve very high induction of room air. The Sinus-DR can be used for
both cooled and heated air. Max. temperature
difference: ΔT 10 K.
Dimensions
Mounting
Make a hole in the duct according to the dimension table. The diffuser is fitted in the hole
and fixed securely by screwing it to the duct.
Make sure that the opening of the check rail is
pointed against the air flow.
Sinus- DR
Size, hole
A
B
C
-1001
1042
110
60
970x70
dim.
-1501
1542
110
60
1470X70
-1002
1042
180
90
970X140
-1502
1540
180
90
1470X140
-1003
1042
250
125
970X210
-1503
1542
250
125
1470X210
-1004
1042
320
125
970X280
-1504
1540
320
125
1470X280
Sound power level, Lw
Lw(dB) = LpA + Kok (LpA = diagram Kok = table)
Soundattenuation,
correction factor Kok
ΔL (dB)
Mid-frequency band, Hz
Sinus 63 125250500 1k 2k 4k 8k
Mid-frequency band, Hz
Sinus 63 125250500 1k 2k 4k 8k
-DR 100111 6
6
5
6
5
4
5
-DR 100211 6
5
5
6
5
4
5
-DR 100310 7
5
4
4
4
4
5
-DR 1004 9
7
5
4
4
3
3
6
-DR 150110 5
4
4
5
4
3
4
-DR 150210 5
3
4
5
4
3
4
-DR 1503 6
2
4
3
4
3
3
4
-DR 1504 6
5
4
3
3
2
3
5
-DR 1001 4
8
7
1
-8 -14 -18 -13
-DR 1002 5
9
9
2
-8 -15 -17 -12
-DR 1003 8 11 8
1
-7 -15 -16 -13
-DR 1004 12 14 7
1
-6 -14 -17 -12
-DR 1501 4
7
8
2
-9 -14 -19 -16
-DR 1502 3
7
9
2
-8 -17 -20 -16
-DR 1503 7 10 8
2
-7 -15 -18 -15
-DR 1504 11 14 7
1
-5 -13 -17 -14
Tolerance ±4 ±2 ±1 ±1 ±3 ±3 ±6 ±8
Sinus-DR
Size
Art No
1001
6641
1002
6643
1003
6645
1004
6647
1501
6642
1502
6644
1503
6646
1504
6648
Air flow range (m /h, l/s) and throw I0,2 (m)
∆Pt - Pressure drop (Pa)
3
2
3
5
4
6
9
6
11
13
7
3
4
11
14
6
5
7
10
6
10
13
8
11
7
16
25
4
18
34
4
26
37
5
20
32
4
11
23
6
17
26
5
17
27
15
8
15
29
m3/h
60
90
120
180
210
310
400
500
650
925
20-25
30
35-40
l/s
17
25
33
50
58
86
111
139
181
257
dB (A)
Square ceiling diffusers | 45
Kvadra
Louver faced ceiling diffuser
Function
Kvadra supply- and exhaust diffuser for ceiling
installation, to be used in offices, shops or
similar premises. It can be connected to square
ducts or circular ducts via connection transition
KRC and to PER plenum box. The diffuser can be
dismantled for duct cleaning. Kvadra has a high
induction which makes it suitable for cooled air.
Maximum temperature difference is ΔT 12 K.
Design
Kvadra is manufactured from aluminium with
a white powder-coated finish (RAL9010) and
is available in the following sizes: (square)
150x150, 225x225, 300x300, 375x375,
450x450, and with KRC (circular) 150, 225,
300, 375 and 450. The connection transition
KRC is manufactured from galvanized sheet
metal and has a perforated metal sheet for
pressure distribution and is simple to connect.
Mounting
Correct adjustment requires a length of straight
duct, 4 times the duct diameter in front of
the PER plenum box. The distribution unit is
connected to the duct with screws or pop rivets.
Dismantling of the supply air unit: release
the cones by gently pressing and turning the
cones simultaneously. Reassemble the unit
correspondingly. When assembling KRC to the
Kvadra make sure that the connection edges
fits into the KRC hold down springs. Gentle tap
the two parts together so that the connection
edges bottoms into the hold down springs.
Ordering code
Kvadra-300 with
dimension
and
the
accessories are Transition KRC, Plenum box
PER with removable damper and test points,
Kvadra power paint RAL 9010 and Kvadra - AN
Anodized Alumim satin finish.
Dimensions
C Size
A
B
Kvadra-150
143
295
226
Kvadra-225
218
370
301
Kvadra-300
293
445
376
Kvadra-375
368
520
451
Kvadra-450
443
595
526
KRC-150
KRC-225
KRC-300
KRC-375
KRC-450
ØD
123
158
248
313
398
I
145
220
295
370
445
H
90
90
90
90
90
Kvadra
hole dim
Accessory KRC
Accessory : PER
Selection Table
Table below shows the general product
performance for more details please see
selection software or contact your local
systemair office.
ØD1
ØD2
C
E
F
G
PER 125-160
124
162
360
250
47
210
PER 160-200
159
202
450
300
47
280
PER 200-250
199
252
500
350
47
305
PER 250-315
249
317
565
450
47
330
KVADRA
Size
Art No
KVADRA
KRC
Air flow range (m3/h, l/s) and throw I0,2 (m)
PER
150
6540
6530
6522
225
6541
6531
6523
3
4
300
6542
6532
6525
5
375
6543
6533
6526
4
450
6544
6534
6527
∆Pt - Pressure drop (Pa)
6
4
5
6
6
8
6
8
7
21
37
8
19
30
9
20
30
4
18
25
6
7
10
5
10
21
m3/h
100
150
200
275
350
475
600
725
1075
20-25
30
35-40
l/s
28
42
56
76
97
132
167
201
299
dB (A)
46 | Square ceiling diffusers
CRS-T
Circular swirl diffuser with fixed blades
Dimensions
Function
CRS-T is a square ceiling swirl diffuser with fixed air guiding blades for
T bar ceilings. Swirled stream quickly looses speed and temperature
thanks to high induction therefore it can be used for high air exchanges
and temperature can vary from -10K to +10K. It can also be used for
supply or return air. The rotational turbulence produced, cause a rapid
mixing of temperatures and considerably shorter jet throws. CRS-T swirl
diffuser is also ideal to use for VAV systems, allowing variations in air
flow rate from 100% to 25% without risk of detaching the jet from the
ceiling.
Design
The diffuser is manufactured from steel sheet powder painted to
RAL9010 white.
Plenum box
Mounting
The diffuser can be installed with a mounting bridge, with screws to the
plenum box, directly to duct or dropped into a t-bar ceiling.
Ordering code
CRS-T-125-600
Product code, CRS-T
Inlet size, Ø125
Face size, 600 x 600
Accessories
CRS-D – Butterfly damper
CRS-MB – Mounting bridge for central screw fixing
CRS-PB – Insulated side entry plenum box
Size
125
160
200
250
315
355
400
ØA
123
158
198
248
313
353
398
D1
98
123
178
198
248
277
398
Damper
E
153
159
151
167
176
183
183
CRS-T
Size
Art No
CRS-T
-D
-PB
125
42374
41380
41387
160
42375
41381
41388
200
42376
41382
41389
250
42377
41383
41390
315
42378
41384
41391
355
42379
41385
41392
400
42380
41386
41393
Air flow range (m3/h, l/s) and throw I0,2 (m)
3
4
6
3
4
5
4
5
∆Pt - Pressure drop (Pa)
6
5
6
7
4
5
7
5
7
9
7
29
65
10
22
40
9
17
26
12
17
30
8
14
23
10
16
28
7
8
11
12
18
32
m3/h
75
100
150
200
250
300
400
500
600
800
20-25
30
35-40
l/s
21
28
42
56
69
83
111
139
167
222
dB (A)
Square ceiling diffusers | 47
VVKN
Swirl ceiling diffuser used for supply and return air with fixed blades
Function
VVKN is a square ceiling swirl diffuser with fixed air guiding blades. Ideal
to use in shopping halls, receptions or offices. The diffuser can be used
for supply or return air. The height of the room can be up to 4 meters.
Swirled stream quickly looses speed and temperature thanks to high induction therefore it can be used for high air exchanges and temperature
can vary from -12K to +10K. The front plate is installed to a plenum box
with a screw.
Dimensions
Design
The diffuser is manufactured from galvanized steel powder painted to
RAL9010 white. In the centre of the diffuser is pre-punched hole for
screw fixing. Screw with white decorative cap is provided together with
self adhesive seal. Seal must be glued by the customer at the installation site.
Mounting
The diffuser is installed into a plenum box with a screw in the front face
or inserted into the T-bar ceiling.
Size
300
400
500
600
625
Ordering example code
VVKN-B-S-300
B= Face type
S= Square face
300 = Size 300 x 300
ØD (mm)
X (mm)
296
396
496
596
621
158
198
198
248
248
K (mm)
290
390
490
590
615
H1 (mm)
270
280
290
340
340
Accessory
VVK-300
Non-insulated plenum box with inlet damper for supply air with square
face size of 300 x 300
VVKN-B-S
Size
Art No
Air flow range (m3/h, l/s) and throw I0,2 (m)
VVKN-B-S
VVK
300
40617
41073
400
40618
41505
2
500
40619
41506
2
600
40620
41076
625
40621
41458
2
2
∆Pt - Pressure drop (Pa)
2
2
2
2
3
2
2
3
5
19
34
9
19
32
4
22
36
10
16
33
2
2
3
10
16
33
m3/h
100
150
200
275
350
450
650
20-25
30
35-40
l/s
28
42
56
76
97
125
181
dB (A)
48 | Square ceiling diffusers
VVKR
Swirl ceiling diffuser used for supply and
return air with adjustable blades
Function
VVKR is a square ceiling swirl diffuser with manually adjustable air
guiding blades which enables to adapt the airflow pattern to individual
requirements of the room at any time. Ideal to use in shopping halls,
receptions or offices. The diffuser can be used for supply or return air.
The height of the room can be up to 4 meters. Swirled stream quickly
looses speed and temperature thanks to high induction therefore it can
be used for high air exchanges and temperature can vary from -10K to
+10K. The front plate is installed to a plenum box with a screw.
Dimensions
Design
The diffuser is manufactured from galvanized steel powder painted to
RAL9010 white. Blades are from black plastic. In the centre of the diffuser is pre-punched hole for screw fixing. Screw with white decorative
cap is provided together with self adhesive seal. Seal must be glued by
the customer at the installation site.
Mounting
The diffuser is installed into a plenum box with a screw in the front face
or inserted into the T-bar ceiling.
Size
300
400
500
600
625
Ordering example code
VVKR-A-S-300
A= Face type
S= Square face
300 = Size 300 x 300
X (mm)
296
396
496
596
621
ØD (mm)
158
198
198
248
248
K (mm)
290
390
490
590
615
Accessory
VVK-300
Non-insulated plenum box with inlet damper for supply air with square
face size of 300 x 300
VVKR
Size
Art No
VVKR-A-S
VVK
300-8
40640
41073
400-16
40641
41505
500-24
40643
41506
600-32
40646
41076
625-32
40650
41458
Air flow range (m3/h, l/s) and throw I0,2 (m)
2
2
∆Pt - Pressure drop (Pa)
2
2
2
3
2
3
3
2
2
2
20
35
55
13
19
28
11
22
28
10
19
28
2
2
2
10
19
28
m3/h
150
200
250
300
350
400
475
20-25
30
35-40
l/s
42
56
69
83
97
111
132
dB (A)
H1 (mm)
270
280
290
340
340
Square ceiling diffusers | 49
TSF
Perforated face return air diffusers
Function
TSF is a perforated exhaust air diffuser designed for ceiling assembly. Plenum box PER
or iris damper SPI should be used to regulate
the air flow.
Dimensions
Design
TSF is available in 7 different sizes 100-400.
Size 250-400 do not need adapter plates for
installation in suspended ceiling, 600 x 600.
TSF consists of perforated front plate and a
diffuser box, manufactured of sheet metal.
The diffuser box has a connection sleeve fitted
with a rubber seal. TSF is painted with a white
powder coated finish (RAL 9010-80). The
front plate is removable to easy access to the
duct.
Mounting
When mounting, pull the perforated front
straight out. Connect the diffuser box with
blind rivets and then remount the front. If the
diffuser is fitted to a PER plenum box there
must be a straight length, 4 times the duct
diameter in front of the PER plenum box. A
Sinus P600 is a replacement for a false ceiling
tile, not in ceiling 625x625, when installing
TSF 100-200. TSF 250- 400 can be installed
directly. The hole dimension is according to the
measuring table.
Selection Table
Table below shows the general product performance for more details please see selection software or contact your local systemair
office.
L hole
TSF
A
B
C
D
E
F
G
H
J
100
-
-
-
-
-
-
-
125+PER 100-125
320
250
150 47
185 167 242 7,4 355 124 99 127 328
160+PER 125-160
360
250
160 47
210 172 252 7,4 355 159 124 162 328
200+PER 160-200
450
300
195 47
280 197 295 7,4 455 199 159 202 428
250+PER 200-250
500
350
250 54
305 224 349 7,4 595 249 199 252 563
315+PER 259-315
565
450
300 54
330 249 399 7,4 595 314 249 317 563
400+PER 315-400
620
550
400 54
360 319 499 7,4 595 399 314 402 563
7,4 355
ØK D1 D2 dim
99
-
-
328
The ordering code is TSF-125 and the accessories are Plenum box PER, Ceiling plate SinusP 600 for installation in suspended ceiling of
standard colour white (RAL 9010-80), Sinus-P
600-125/160 (also suitable for 100), Sinus-P
600-200 and Sinus-P 625.
TSF
Size
Art No
TSF
100
7529
125
7530
6522
160
7531
6523
200
7532
6524
250
7533
6525
315
7534
6526
400
7535
6527
Not Available
Air flow range (m3/h, l/s) and ΔPt pressure (Pa)
PER
21
48
101
20
42
97
15
37
72
15
47
67
18
27
57
11
23
54
14
32
52
3
m /h
150
225
325
500
875
1050
1525
2325
2925
l/s
42
62
90
139
243
292
424
646
812
Acoustic performance in dB(A):
20-25
30
35-40
50 | Square ceiling diffusers
TSO
Perforated diffuser for T-Bar ceiling with top entry plenum
Function
The TSO is a supply and exhaust air diffuser
designed for ceiling assembly. The TSO has a
perforated front plate and a connection sleeve
fitted with a rubber seal tested for airtightness. The TSO has high induction which allows
a maximum air temperature difference of DT
10 K. The distribution pattern can be altered
with the SSO shielding accessory to one, two
or three-way distribution. The distribution unit
is adjustable.
Dimensions
Design
The TSO is manufactured from galvanized
sheet metal with a white powder-coated finish (RAL 9010-80) and is available in the following sizes: Ø100, Ø125, Ø160, Ø200, Ø250,
Ø315 and Ø400.
L hole
How to use for exhaust air
This device can also be used for exhaust air
application.
Mounting
The diffuser is installed directly onto the spiral
duct and fixed with pop rivets. If the diffuser
is fitted to a PER plenum box, there must be a
straight length, 4 times the duct’s diameter, in
front of the PER plenum box.
TSO
A
B
C
D
100
-
-
-
-
E
G
-
-
H
J
ØK
D1
D2 dim
33-53 264
99
-
125+PER 100-125 320 250 150 47
185
128 203 33-53 264
124
99
160+PER 125-160 360 250 160 47
210
133 213 33-53 264
159 124 162 167
200+PER 160-200 450 300 195 47
280
158 256 33-53 364
199 159 202 207
250+PER 200-250 500 350 250 54
305
185 310 33-53 595
249 199 252 257
315+PER 250-315 565 450 300 54
330
210 360 33-53 595
314 249 317 322
400+PER 315-400 620 550 400 54
360
280 480 33-53 595
399 314 402 407
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
TPP
-
F
SSO
Ordering code
The ordering code is TSO-160 Size and the
accessories are Ceiling plate (600x600) TPP,
Plenum box PER with removable damper and
test points and SSO shielding.
-
107
127 132
TPP-600-125
TPP-600-160
A
595
595
ØC
144
176
TPP-600-200
595
208
TPP-625-125
623
144
TPP-625-160
623
176
TPP-625-200
623
208
TSO
Size
Art No
TSO
TPP-600
TPP-625
PER
Air flow range (m3/h, l/s) and throw I0,2 (m)
SSO
100
6469
6141
2
2
125
6094
6260
1999
6522
6141
1
2
160
6095
6227
2067
6523
6141
200
6096
6228
2068
6524
6142
250
6097
6525
6143
315
6098
6526
6143
400
6099
6527
6143
Not Available
∆Pt - Pressure drop (Pa)
3
3
2
3
4
2
3
3
11
24
41
6
22
52
11
26
56
5
13
31
67
3
4
15
18
37
2
3
5
10
22
58
3
4
4
12
34
54
20-25
30
35-40
3
m /h
80
120
160
250
375
400
600
1000
1250
l/s
22
33
44
69
104
111
167
278
347
dB (A)
Square ceiling diffusers | 51
Sinus-A
Nozzle diffuser with curved front face.
Function
The Sinus-A consists of a front plate with a
number of nozzles (size 57 mm) together with
a main body plus connection sleeve fitted
with a rubber seal tested for air-tightness.
The front plate is easy to assemble without
the use of tools. The front plate hangs from a
chain during cleaning and servicing. Maximum
temperature difference for cooled air: ΔT 12 K.
Dimensions
Mounting
The Sinus-A should be fitted onto a PER
plenum box, or connected directly onto a duct
(Ø125-315) with pop rivets. When installed in
a rigid ceiling structure, the sides and the top
of the unit’s main body can be fitted to the
structure.
Accessories
Adapter plate for fitted in suspended ceilings, 600x600 and 625x625. Standard colour
white (RAL 9010-80). The Sinus-A in the 250
and 315 sizes do not need adapter plates for
600x600 grids.
Sinus-A-125+PER 100-125
Sinus-A-160+PER 125-160
Sinus-A-200+PER 160-200
Sinus-A-250+PER 200-250
Sinus-A-315+PER 250-315
A
B
C
320
360
450
500
565
250
250
300
350
450
D
150 47
160 47
195 47
250 54
300 54
E
F
G
H
J ØK D1 D2
185
210
280
305
330
169
174
192
219
244
244
254
289
344
394
41
41
46
50
50
350
350
450
595
595
L hole
123 98 127 326 x 326
158 123162 326 x 326
198 158202 426 x 426
248 198252 561 x 561
313 248317 561 x 561
The ordering code is Sinus-A-125-L.
Plenum box PER
with removable damper and test points.
Sinus-A-Large Nozzle
Size
Art No
Air flow range (m3/h, l/s) and throw I0,2 (m)
Sinus-A
PER
Sinus-P-600
Sinus-P-625
125
1951
6522
1979
1981
160
1952
6523
1979
1981
200
1953
6524
1980
1982
250
1954
6525
1983
5
6
315
1955
6526
1983
5
6
2
3
4
3
4
6
3
4
∆Pt - Pressure drop (Pa)
6
17
29
7
17
36
5
16
29
8
11
16
26
7
9
14
23
20-25
30
35-40
6
3
m /h
80
120
160
235
335
385
460
585
l/s
22
33
44
65
93
107
128
162
dB (A)
Sinus-A-Small Nozzle
Size
Art No
Sinus-A
PER
Sinus-P-600
Sinus-P-625
125
1971
6522
1979
1981
160
1972
6523
1979
1981
200
1973
6524
1980
1982
250
1974
6525
1983
315
1975
6526
1983
Air flow range (m3/h, l/s) and throw I0,2 (m)
2
2
∆Pt - Pressure drop (Pa)
3
2
3
3
2
3
4
2
5
17
23
6
17
27
6
16
23
3
4
6
11
25
3
4
5
6
15
20
20-25
30
35-40
3
m /h
90
120
150
180
230
270
330
505
630
l/s
25
33
42
50
64
75
92
140
175
dB (A)
Not Available
52 | Square ceiling diffusers
Sinus-G
Nozzle diffuser designed for plaster or flush mounted ceiling
Function
The Sinus G will be used for flush mounting
in false ceiling. It is possible to remove the
diffuser face to access the duct system. The
front plate is attached with a chain to the
main body for easy cleaning and servicing. By
pulling the front plate one step out from the
main body an air gap is created around the
diffuser. Maximum temperature difference for
cooled air ΔT 12 K.
Dimensions
A
PER
125
7006
6522
160
7007
6523
200
7009
6524
250
7013
6525
315
7014
6526
Air flow range (m3/h, l/s) and throw I0,2 (m)
1
2
2
2
2
3
1
2
3
2
3
Sinus-G-160-L
326 158
355 7.4
7.5
Sinus-G-200-L
426 198
455 7.4
7.5
Sinus-G-250-L
561 248
595 7.4
7.5
Sinus-G-315-L
561 313
595 7.4
7.5
∆Pt - Pressure drop (Pa)
4
E
7.5
Sinus-G
Art No
D
355 7.4
Ordering code
The ordering code is Sinus-G and the accessory is Plenum box PER.
Sinus-G
C
326 123
Mounting
By opening a square hole in the ceiling slab
the diffuser back box can be completely recessed into the opening onto the metal flange.
The flange, which is part of the back box is
used to cover the edges of the opening. The
diffuser is fastened to the duct or plenum box
PER from the inside of the spigot by screws or
pop rivets. The front plate with the nozzles is
easily detached from the back box by gently
inserting a screwdriver in openings on the side
after which the two parts are bent apart. In
the same fashion a small extra air gap can be
created around the diffuser.
Size
ØB
Sinus-G-125-L
22
44
66
10
21
50
7
25
44
10
22
41
3
4
5
13
25
39
m3/h
90
120
150
225
300
425
550
20-25
30
35-40
l/s
25
33
42
62
83
118
153
dB (A)
Square ceiling diffusers | 53
Sinus-F
Square multi nozzle ceiling diffuser For t-bar ceiling
Function
Exterior dimension 600 x 600 and 625 x 625.
It is possible to remove the diffuser face to
access the duct system. The front plate is attached with a chain to the main body for easy
cleaning and service. Pull the front plate one
step out from the main body to create an air
gap around the diffuser. Max temp. diff. for
cooled air ΔT 12 K.
Dimensions
A
ØB
C
595
595
595
595
595
123
158
198
248
313
40
40
40
40
40
Sinus-F-125-L
Sinus-F-160-L
Sinus-F-200-L
Sinus-F-250-L
Sinus-F-315-L
Sound attenuation, ΔL (dB)
Mid-frequency band, Hz
Mounting
The diffuser is specially designed for flush
mounting in false ceiling and directly suspended in the T-bar framework carrying structure,
and then fixed with the help of the connecting
duct or plenum box PER.
Closed gap
63 125250 5001k 2k 4k 8k
Sinus-F-125-L
Sinus-F-160-L
Sinus-F-200-L
Sinus-F-250-L
Sinus-F-315-L
25
14
20
15
24
17
17
15
13
11
14
11
12
11
12
15
10
14
16
14
18
16
18
15
11
17
15
15
11
10
12
11
13
13
13
16
14
13
12
11
20 mm open gap
Sound power level, Lw
Ordering code
The ordering code is Sinus - F - L and the accessory is PER plenum box.
Lw(dB) = LpA + Kok (LpA = diagram Kok = table)
correction factor Kok
The diagram shows
Air volume (l/s and m3/h), total pressure (Pa),
throw (l0,2) and sound pressure level [dB(A)].
Mid-frequency band, Hz
Sound attenuation ΔL The air terminal device’s
self-damping (dB), including its aperture
damping, can be read off from the tables
below. Measurements with PER plenum box
Open gap
63 125250 5001k 2k 4k 8k
Sinus-F-125-L
Sinus-F-160-L
Sinus-F-200-L
Sinus-F-250-L
Sinus-F-315-L
12
11
10
17
11
7
4
7
9
12
4
4
5
4
3
2
2
3
-2
0
-4
-1
-2
-2
-2
-11-13-9
-9 -17-14
-11-18-14
-7 -15-14
-9 -13-12
13
11
5
16
12
7
6
6
10
11
4
5
4
5
4
3
2
4
-1
0
-5
-2
-3
-2
-1
-12-15-11
-10-17-15
-12-19-17
-8 -14-15
-10-18-17
Closed gap
Sinus-F-125-L
Sinus-F-160-L
Sinus-F-200-L
Sinus-F-250-L
Sinus-F-315-L
Sinus-F
Art No
Size
Sinus-F
Air flow range (m3/h, l/s) and throw I0,2 (m)
PER
600x600
625x625
125
7030
7015
6522
160
7031
7016
6523
200
7032
7017
6524
250
7033
7018
6525
315
7034
7019
6526
<1
<1
1
1
1
1
1
2
∆Pt - Pressure drop (Pa)
2
1
2
3
18
36
63
16
30
42
10
18
33
15
28
44
2
3
3
15
24
34
m3/h
75
100
135
165
225
300
375
450
20-25
30
35-40
l/s
21
28
38
46
62
83
104
125
dB (A)
54 | Round ceiling diffusers
Konika
Circular fixed cones ceiling diffuser
Function
The Konika is a supply and exhaust air diffuser
for ceiling assembly. The Konika is suitable for
offices, shops or similar premises. The Konika
can either be connected directly to a circular
duct or to the PER plenum box. The Konika is
suitable both for cool and warm air. The Konika
has high induction which allows a maximum
air temperature difference of ΔT 8 K.
Dimensions
ØA
ØB C
ØN
Konika - 160
248 190 36 158
Konika - 200
298 230 36 198
Konika - 250
363 280 36 248
Konika - 315
448 350 36 313
Design
The Konika is manufactured from steel with a
white powder-coated finish (RAL 9010) and is
available in the following sizes: Ø160, Ø200,
Ø250 and Ø315, incl. mounting bar. Konika-AN
is manufactured from aluminium with natural
anodized finish and is available in the following sizes: Ø160, Ø200, Ø250, Ø315, Ø355,
Ø400, incl. T bar ceiling and damper.
How to use for exhaust air
This device can be used for exhaust air.
PER 125-160
PER 160-200
PER 200-250
PER 250-315
Mounting
Correct adjustment requires a length of
straight duct, 4 times the duct diameter in
front of the PER plenum box. Between the
PER plenum box and the Konika diffuser there
need to be a length of straight duct, 1 times
the duct diameter.
ØD1
124
159
199
249
ØD2
162
202
252
317
C
360
450
500
565
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
Ordering code
The ordering code is Konika-160 with dimension and accessory is Plenum box PER with
removable damper and test points.
Konika
Size
Art No
Konika
PER
160
6545
6523
200
6546
250
6547
315
6548
6526
Air flow range (m3/h, l/s) and throw I0,2 (m)
2
3
4
6524
2
3
6525
2
∆Pt - Pressure drop (Pa)
5
3
4
9
28
47
9
18
31
2
19
28
3
4
5
5
10
22
m3/h
150
225
300
400
490
715
20-25
30
35-40
l/s
42
62
83
111
136
199
dB (A)
E
250
300
350
450
F
47
47
47
47
G
210
280
305
330
Round ceiling diffusers | 55
Konika-A
Circular adjustable cone ceiling diffuser
Function
Konika-A multi cone diffuser for ceiling assembly. The diffuser consist of an external
cone and an adjustable double center cone.
The double cone can be adjusted for changing
of the distribution pattern from horizontal to
vertical.
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
Dimensions
Design
The diffuser is manufactured from steel with
white powder-coated finish (RAL 9010) and is
available in 6 sizes 160-500. The cone diffuser
can also be manufactured in aluminium. When
dismantling the inner double cone the duct
system becomes accessible for cleaning.
Mounting
When mounting the cone diffuser, dismantle
the inner double cone by pressing and turning it. Pull the cone straight out. Attach the
external cone with pop rivets and remount the
inner cone in the position that provides the
desired distribution pattern (external position
for horizontal distribution pattern and inner
positon for vertical).
ØA
ØB
C
ØD
E
F
G
H
I
K
Konika-A- 160 279
323
12
158
22
85
46
35
155
235
210 125
Konika-A- 200 375
428
10
198
26
101
55
51
193
290
280 160
Konika-A- 250 467
538
14
248
33
117
68
67
235
360
305 200
Konika-A- 315 557
635
10
313
42
135
80
85
280
330
330 250
Konika-A- 400 740
856
14
398
49
166
92
116
360
360
360 315
17
498
72
199
116
149
-
-
Konika-A- 500 924 1081
L
-
ØM
-
Konika-A (with Horizontal throw setting)
Size
Art No
Konika-A
PER
160
5417
6523
200
5418
6524
250
5419
6525
315
5420
6526
400
5421
6527
500
6549
B505
Air flow range (m3/h, l/s) and throw I0,2 (m)
4
6
∆Pt - Pressure drop (Pa)
7
5
6
8
7
9
12
7
9
11
10
13
16
10
18
26
6
17
28
10
18
26
9
14
25
7
15
24
12
16
21
10
16
22
20-25
30
35-40
3
m /h
240
300
360
510
660
835
1010
1385
1885
2385
3035
3685
l/s
67
83
100
142
183
232
281
385
524
662
843
1024
dB (A)
Konika-A (with Vertical throw setting)
Size
Art No
Konika-A
PER
160
5417
6523
200
5418
6524
250
5419
6525
315
5420
6526
400
5421
6527
500
6549
B505
Air flow range (m3/h, l/s) and throw I0,2 (m)
8
11
∆Pt - Pressure drop (Pa)
14
8
13
17
12
15
19
12
15
18
15
20
26
10
18
26
6
17
28
10
18
26
9
14
25
7
15
24
20
25
30
10
16
22
m3/h
240
300
360
510
660
835
1010
1385
1885
2385
3035
3685
20-25
30
35-40
l/s
67
83
100
142
183
232
281
385
524
662
843
1024
dB (A)
56 | Round ceiling diffusers
CRS
Circular swirl diffuser with fixed blades
Function
CRS is a round ceiling swirl diffuser with fixed air guiding blades and can
be used for supply or return air. Swirled stream quickly looses speed
and temperature thanks to high induction therefore it can be used for
high air exchanges and temperature can vary from -10K to +10K.The
rotational turbulence produced, cause a rapid mixing of temperatures
and considerably shorter jet throws. CRS swirl diffuser is also ideal to
use for VAV systems, allowing variations in air flow rate from 100% to
25% without risk of detaching the jet from the ceiling.
Dimensions
Design
The diffuser is manufactured from steel sheet powder painted to
RAL9010 white.
Plenum box
Mounting bridge
Mounting
The diffuser can be installed with a mounting bridge, with screws to the
plenum box or directly to duct.
Ordering code
CRS-125
(Size)
Accessories
CRS-D – Butterfly damper
CRS-MB – Mounting bridge for central screw
ØD1
Reduction
E
fixing
CRS-PB–Non insulated side entry plenum box
Size
125
160
200
250
315
355
400
ØA
123
158
198
248
313
353
398
ØB
228
253
303
353
418
458
503
D1
98
123
178
198
248
277
398
E
153
159
151
167
176
183
183
Damper
CRS
Size
Art No
CRS
-MB
-D
Air flow range (m3/h, l/s) and throw I0,2 (m)
-PB
125
41007
41373
41380
41387
160
41008
41374
41381
41388
200
41009
41375
41382
41389
250
41010
41376
41383
41390
315
41011
41377
41384
41391
355
42439
41378
41385
41392
400
41012
41379
41386
41393
3
4
6
3
4
5
4
5
∆Pt - Pressure drop (Pa)
6
5
6
4
7
5
7
5
7
9
7
29
65
10
22
40
9
17
26
12
17
30
8
14
23
10
16
28
7
8
11
12
18
32
m3/h
75
100
150
200
250
300
400
500
600
800
20-25
30
35-40
l/s
21
28
42
56
69
83
111
139
167
222
dB (A)
Round ceiling diffusers | 57
CRSP
High capacity swirl diffuser with fixed deflectors
Description
CRSP swirl diffuser is specifically constructed to achieve larger air
volume capacities with high induction levels. Diffuser is manufactured
from PP and has as standard white colour. CRSP has as standard central
screw fixing system for a M6 or M8 mounting screw. The diffuser has
fixed deflectors to make it an ideal setting for Cooling and heating for
ceiling installations of 2.7 to 3.5 meter and above.
Dimensions
ØE
ØD
H
Accessories
CRSP-MB, Mounting Bridge
CRSP-RED, One-step reduction unit
CRSP-PB, Non insulated side entry plenum box
Table of Dimensions
Size
125
160
180
200
250
315
400
500
ØD
123
158
178
198
248
313
398
498
ØD1
98
123
158
158
198
248
313
398
ØE
165
225
255
275
350
450
585
735
ØF
190
250
280
300
380
480
610
760
G
153
159
159
151
167
176
183
NA
H
65
85
95
105
130
170
210
260
ØF
Plenum box
Mounting bridge
Reduction
G
ØD1
CRSP
Size
Art No
CRSP
-MB
-PB
-RED
125
34179
34203
34187
34195
160
34180
34204
34188
34196
180
34181
34205
34189
34197
200
34182
34206
34190
34198
250
34183
34207
34191
34199
315
34184
34208
34192
34200
400
34185
34209
34193
34201
500
34186
34210
34194
34202
∆Pt - Pressure drop
(Pa)
Air flow range (m3/h, l/s) and throw I0,2 (m)
1
2
2
2
2
2
2
2
3
2
2
3
3
3
4
3
4
4
4
5
6
19
33
61
23
39
57
27
44
64
25
42
60
22
39
61
16
27
56
15
40
70
5
6
7
17
42
75
m3/h
60
80
110
140
170
220
270
360
450
650
900
1100
1300
20-25
30
35-40
l/s
17
22
31
39
47
61
75
100
125
181
250
305
360
Above throw data are based on installation height of 3m
dB (A)
58 | Round ceiling diffusers
TST
Circular ceiling diffuser with adjustable front plate
Function
The TST is a circular supply diffuser for ceiling
installation. The distribution pattern can be
altered and the gap width is adjustable. The
two-part diffuser unit can be adjusted to provide the desired throw. A shielding device is
included which can be used to alter the distribution pattern to a directional (180°) pattern.
Dimensions
Design
The TST is manufactured from galvanized
sheet metal, with a white powder-coated
finish (RAL 9010-80). The TST is available with
the following diameters: Ø100, Ø125, Ø160,
Ø200, Ø250 and Ø315.
ØL hole
TST
A
B C
D
E
F G
H
R1 ØJ ØK D1 D2 dim
How to use for exhaust air
This device can be used for exhaust air.
100
Mounting
The diffuser is installed directly onto the spiral
duct and fixed with pop rivets. If the diffuser
is fitted to a PER plenum box, there must be a
straight length, 4 times the duct’s diameter, in
front of the PER plenum box.
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
- 30-50 80 199
99
-
-
107
125 + PER 100-125 320 250 150 47 185 116 191 30-50 105 249 124 99 127
132
160 + PER 125-160 360 250 160 47 210 121 201 30-50 105 249 159 124 162
167
200 + PER 160-200 450 300 195 47 139 139 237 30-50 127 314 199 159 202
207
250 + PER 200-250 500 350 250 54 305 183 308 30-50169,5399 249 199 252
257
315 + PER 250-315 565 450 300 54 330 208 358 30-50169,5399 314 249 317
322
TPP - 600 - 125
TPP - 600 - 125
TPP - 600 - 125
TPP - 600 - 125
TPP - 600 - 125
TPP - 600 - 125
TPP
Ordering code
The ordering code is TST-125 with sizes and
the accessories are Ceiling plate (600x600)
TPP and Plenum box PER with removable
damper and test points. The ordering code is
TSO-160 Size and the accessories are Ceiling
plate (600x600) TPP, Plenum box PER with
removable damper and test points and SSO
shielding.
A
ØC
595
595
595
623
623
623
144
176
208
144
176
208
TST
Size
Art No
TST
TPP-600
TPP-625
PER
100
6105
125
6106
6260
1999
6522
160
6107
6227
2067
6523
200
6108
6228
2068
6524
250
6109
6525
315
6110
6526
Not Available
Air flow range (m3/h, l/s) and throw I0,2 (m)
2
3
∆Pt - Pressure drop (Pa)
4
3
4
4
3
6
23
46
21
38
55
7
27
49
84
6
8
39
69
5
5
4
3
5
11
42
56
5
6
6
8
31
48
87
20-25
30
35-40
3
m /h
120
180
240
315
390
540
640
890
l/s
33
50
67
88
108
150
178
247
dB (A)
Round ceiling diffusers | 59
TSK
Circular ceiling diffuser with adjustable perforated front plate
Function
The TSK is a circular perforated supply diffuser
for ceiling installation. The two-part diffuser
unit can be adjusted to provide the desired
throw. TSK is a perforated version of TST. The
gap width is adjustable. TSK is a perforated
version of TST. The gap width is adjustable.
Dimensions
Design
The TSK is manufactured from galvanized
sheet metal, with a white powder-coated
finish (RAL 9010-80). The TSK is available with
the following diameters: Ø100, Ø125, Ø160,
Ø200, Ø250 and Ø315.
ØL hole
TSK
A
B C
D
E
F G
H
R1 ØJ ØK D1 D2 dim
How to use for exhaust air
This device can be used for exhaust air.
100
Mounting
The diffuser is installed directly onto the spiral
duct and fixed with pop rivets. If the diffuser
is fitted to a PER plenum box, there must be a
straight length, 4 times the duct’s diameter, in
front of the PER plenum box.
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
- 30-50 80 199
99
-
-
107
125 + PER 100-125 320 250 150 47 185 116 191 30-50 105 249 124 99 127
132
160 + PER 125-160 360 250 160 47 210 121 201 30-50 105 249 159 124 162
167
200 + PER 160-200 450 300 195 47 139 139 237 30-50 127 314 199 159 202
207
250 + PER 200-250 500 350 250 54 305 183 308 30-50169,5399 249 199 252
257
315 + PER 250-315 565 450 300 54 330 208 358 30-50169,5399 314 249 317
322
TPP - 600 - 125
TPP - 600 - 125
TPP - 600 - 125
TPP - 600 - 125
TPP - 600 - 125
TPP - 600 - 125
TPP
A
ØC
595
595
595
623
623
623
144
176
208
144
176
208
Ordering code
The ordering code is TSO-160 Size and the accessories are Ceiling plate (600x600) TPP, Plenum box PER with removable damper and test
points and SSO shielding. The ordering code
is TSK-125 with sizes and the accessories are
Ceiling plate (600x600) TPP and Plenum box
PER with removable damper and test points.
TSK
Size
Art No
TSK
TPP-600
TPP-625
PER
Air flow range (m3/h, l/s) and throw I0,2 (m)
100
6720
125
6721
6260
1999
6522
2
2
160
6722
6227
2067
6523
2
200
6723
6228
2068
6524
3
250
6724
6525
3
315
6725
6526
∆Pt - Pressure drop (Pa)
2
3
4
4
5
4
6
5
6
3
6
21
38
6
20
38
1
26
45
11
23
39
4
26
38
7
7
25
35
20-25
30
35-40
3
m /h
120
160
235
310
335
460
610
760
910
l/s
33
44
65
86
93
128
169
211
253
dB (A)
Not Available
60 | Round ceiling diffusers
TSR
Circular ceiling diffuser with
adjustable front plate for apparent installations
Systemair TSR ceiling diffuser complete with
plenum box for visible installation. The plenum
box is fitted with a removable damper, test
points and fibre-free sound insulation.
Dimensions
Function
The TSR is a complete circular supply diffuser,
with an adjustable and sound-insulated diffuser unit combined with a plenum box. The
plenum box has a damper and test points, and
is internally lined with fibre-free sound-insulation material. The TSR is suitable for cooled air
with a maximum ∆T of 12 K.
ØA B
C
TSR 100 250 170 35 ØD
99
TSR 125 250 200 37 124
TSR 160 315 250 45 159
TSR 200 400 285 43 199
TSR 250 400 330 40 249
Sound attenuation, ΔL (dB)
Mid-frequency band, Hz
Design
The TSR is manufactured from galvanized
sheet metal with a white powder-coated
finish (RAL 9010-80) and is available in the
following diameters: Ø100, Ø125, Ø160, Ø200
and Ø250.
63 125250500 1k 2k 4k 8k
TSR 100
23 17 13 16 7
6
8 10
TSR 125
21 16 9 15 10 6
8 11
TSR 160
21 15 10 15 9
6
7 10
TSR 200
17 12 13 15 8
6
8 10
TSR 250
16 12 11 14 10 7
7
9
Sound power level, Lw
Lw(dB) = LpA + Kok (LpA = diagram Kok = table)
correction factor Kok
Mid-frequency band, Hz
How to use for exhaust air
This device can be used for exhaust air.
Mounting
The diffuser is fixed securely by screwing up
into the ceiling from the inside of the unit.
The front plate can be removed by pulling it
straight out. The sound-absorbing material is
cut out of the diffuser’s centre to make room
for the screws.
63 125250500 1k 2k 4k 8k
TSR 100
14 1
6 -2 -3 -3 -14 -21
TSR 125
15 1
6 -3 -3 -3 -13 -19
TSR 160
16 4
6 -1 -2 -5 -15 -24
TSR 200
15 7
4 -1 -1 -5 -18 -24
TSR 250
17 8
7
TSR
Size
Art No
100
6100
125
6101
160
6102
200
6103
250
6104
Air flow range (m3/h, l/s) and throw I0,2 (m)
1
0 -2 -5 -16 -24
Tolerance ±6 ±3 ±2 ±2 ±2 ±3 ±3 ±4
∆Pt - Pressure drop (Pa)
1
2
1
2
2
1
2
3
2
2
3
2
3
4
20-25
3
m /h
80
120
160
220
280
380
530
l/s
22
33
44
61
78
106
147
11
38
63
12
28
51
13
29
44
13
25
43
11
26
49
30
35-40
dB (A)
Round ceiling diffusers | 61
TSP
Circular ceiling diffuser with adjustable front plate
for apparent installations
Function
This device can be used for exhaust air. A
complete circular perforated supply diffuser,
with an adjustable diffuser unit combined
with a plenum box that has a damper and test
points, and is internally lined with fibre-free
sound-insulation material. The TSP is suitable
for cooled air with a maximum ΔT of 12 K.
Dimensions
Design
The TSP is manufactured from sheet metal
with a white powder-coated finish (RAL 901080) and is available in the following diameters:
Ø100, Ø125, Ø160, Ø200 and Ø250.
ØA
ØB
C
ØD
TSP 100
TSP 125
TSP 160
TSP 200
TSP 250
250
250
315
400
400
170
200
250
285
330
35
37
45
43
40
99
124
159
199
249
The diagram shows
Air volume (l/s and m3/h), total pressure (Pa),
throw (l0,2) and sound pressure level [dB(A)]
with open and closed damper with an air gap of
30 mm.
Mounting
The diffuser is fixed securely by screwing up
into the ceiling from the inside of the unit. Remove the front plate by pulling it straight out.
The sound-absorbing material is cut out of the
diffuser’s centre to make room for the screws.
TSP has a M8 blind rivet for suspension.
Sound attenuation, ΔL (dB)
Mid-frequency band, Hz
63 125250500 1k 2k 4k 8k
TSP 100
23 16 17 20 17 12 12 10
TSP 125
22 16 11 18 14 11 8 9
TSP 160
22 10 12 17 11 9 9 12
TSP 200
21 9 11 13 12 9 8 11
TSP 250
18 10 14 10 11 9 9 11
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
Sound power level, Lw
Lw(dB) = LpA + Kok (LpA = diagram Kok = table)
correction factor Kok
Mid-frequency band, Hz
63 125250500 1k 2k 4k 8k
TSP 100
8
3
8
1 -4 -8 -18 -23
TSP 125
TSP 160
TSP 200
TSP 250
Tolerance
7
12
17
15
±6
5
7
8
9
±3
8
7
4
6
±2
0
-2
-1
1
±2
-4
-2
-2
-2
±2
-5
-6
-5
-9
±3
-15 -22
-17 -23
-17 -19
-19 -25
±3 ±4
TSP
Size
Art No
100
6726
125
6727
160
200
250
6730
Air flow range (m3/h, l/s) and throw I0,2 (m)
1
1
2
1
2
2
6728
1
2
6729
1
2
∆Pt - Pressure drop (Pa)
7
27
49
9
19
38
3
9
26
48
3
4
15
30
2
4
5
8
24
40
m3/h
80
120
160
235
325
500
675
20-25
30
35-40
l/s
22
33
44
65
90
139
188
dB (A)
62 | Round ceiling diffusers
Sinus-C
Circular nozzle ceiling diffuser complete with side
entry plenum box for visible installation
Function
The Sinus-C ceiling diffuser is suitable for visible connection and can be connected directly
to the duct using the connection sleeve fitted
with a rubber seal tested for air tightness. The
side gap is adjustable between 0 and 20 mm
to enable increased air supply. The Sinus-C
consists of a front plate with nozzles (size 57
mm) and a sound-insulated plenum box and
damper. Max. temperature difference:
ΔT 12 K.
Mounting
The diffuser is fixed securely by screwing it
up into the ceiling from the inside of the unit.
The front plate can be removed by pulling it
straight out. The sound absorbing material is
cut out of the diffuser’s centre to make room
for the screws. The diffuser has a M8 blind
rivet for suspension.
Dimensions
Sound attenuation, ΔL (dB)
ØA
B
C
Sinus-C-100
314
170
35
99
Sinus-C-125
399
200
37
124
Sinus-C-160
399
250
45
159
Sinus-C-200
599
285
42
199
Sinus-C-250
599
330
40
249
Sinus-C-315
799
420
53
314
Sound powerlevel,Lw
Mid-frequency band, Hz
Ordering code
The ordering code is Sinus - C - 125 of Type C
with dimensions.
Open gap
The diagram shows Air volume (l/s and m3/h),
total pressure (Pa), throw (l0,2) and sound
pressure level [dB(A)].
Sound attenuation ΔL The air terminal device’s
self-damping (dB), including its aperture
damping, can be read off from the tables
below.
ØD
Mid-frequency band, Hz
63 125250500 1k 2k 4k 8k
Open gap
63 125250500 1k 2k 4k 8k
Sinus-C-100 22 17 12 11 6
5
6
8
Sinus-C-100 9
Sinus-C-125 22 16 9
9
7
5
6
7
Sinus-C-125 11 4 10 0 -8 -13 -18 -22
Sinus-C-160 16 13 7
9
6
4
5
7
Sinus-C-160 12 6 10 -2 -7 -12 -16 -21
Sinus-C-200 21 11 7
8
7
5
6
7
Sinus-C-200 14 9
8
2 -6 -15 -19 -20
Sinus-C-250 15 9
9
6
5
6
7
Sinus-C-250 12 11 9
1 -6 -14 -19 -21
Sinus-C-315 16 8 11 9
5
6
6
9
Sinus-C-315 10 15 6
1 -9 -16 -19 -13
7
Closedgap
2
9
2 -5 -12 -18 -21
Closed gap
Sinus-C-100 23 16 12 13 7
6
7
9
Sinus-C-100 7
Sinus-C-125 21 16 9 10 8
7
6
8
Sinus-C-125 10 4 10 0 -9 -15 -19 -21
Sinus-C-160 18 14 9 12 8
6
6
8
Sinus-C-160 12 6 10 -1 -7 -14 -19 -23
Sinus-C-200 16 10 9
7
6
6
8
Sinus-C-200 13 10 8
2 -6 -15 -20 -19
Sinus-C-250 16 10 9 10 7
6
7
9
Sinus-C-250 14 11 8
1 -5 -15 -18 -22
Sinus-C-315 17 9 11 10 6
7
6 10
Sinus-C-315 8 14 6
2 -7 -17 -20 -13
9
20 mm open gap
Tolerance
2
9
2 -6 -13 -19 -22
±6 ±2 ±2 ±2 ±3 ±5 ±6 ±6
Lw(dB) = LpA+ Kok (LpA =diagramKok=table)
correction factor Kok
Sinus-C
Size
Art No
100
6657
125
6658
160
6659
200
6660
250
6661
315
7302
Air flow range (m /h, l/s) and throw I0,2 (m)
∆Pt - Pressure drop (Pa)
3
1
1
2
1
1
1
3
4
5
1
4
16
29
6
14
34
4
16
28
23
2
3
3
8
1
2
5
15
2
3
4
8
13
21
m3/h
80
120
160
250
260
350
575
800
1025
20-25
30
35-40
l/s
22
33
44
69
72
97
160
222
285
dB (A)
Round ceiling diffusers | 63
Sinus-C/T
Circular nozzle ceiling diffuser
complete with top entry plenum box for visible installation
Function
The Sinus-C ceiling diffuser is suitable for visible connection and can be connected directly
to the duct using the connection sleeve fitted
with a rubber seal tested for air tightness. The
side gap is adjustable between 0 and 20 mm
to enable increased air supply. The Sinus-C
consists of a front plate with nozzles (size 57
mm) and a sound-insulated plenum box and
damper. Max. temperature difference:
ΔT 12 K.
Dimensions
Mounting
The Sinus C has to be connected directly onto
a duct with diameter 100-315 mm with pop
rivets or screws.
ØA
B
Sinus-C/T-100
314
170
ØD
99
Sinus-C/T-125
399
200
124
Sinus-C/T-160
399
250
159
Sinus-C/T-200
599
285
199
Sinus-C/T-250
599
330
249
Sinus-C/T-315
800
420
314
Sound attenuation, ΔL (dB)
Mid-frequency band, Hz
open gap
63 125250500 1k 2k 4k 8k
Sinus-C/T-100 9
2
8 -1 -8 -11 -8 -8
Sinus-C/T-125 10 3
7
1 -7 -12-11 -8
Sinus-C/T-160 9
5
8
3 -10-18-17-12
Sinus-C/T-200 6
7
6
3 -11-19-14-11
Sinus-C/T-250 7 10 5
3 -11-19-16-12
Sinus-C/T-315 6 13 6
1 -11-18-16-10
closed gap
Sinus-C/T-100 5
4 10 -1 -11-16-12-12
Sinus-C/T-125 9
6
8
1 -9 -15-13-10
Sinus-C/T-160 11 5
9
3 -10-19-18-15
Sinus-C/T-200 6 10 7
3 -11-20-16-14
Sinus-C/T
Size
Art No
100
7424
125
7425
160
7426
200
7427
250
7428
315
7430
Air flow range (m /h, l/s) and throw I0,2 (m)
∆Pt - Pressure drop (Pa)
3
1
1
2
1
1
1
1
1
2
1
9
33
56
5
17
45
3
15
29
38
2
2
5
18
2
2
11
26
2
3
3
9
19
29
m3/h
80
120
160
260
260
360
535
735
935
20-25
30
35-40
l/s
22
33
44
72
72
100
149
204
260
dB (A)
64 | Round ceiling diffusers
IKD
Circular ceiling diffuser with dual adjustable cones for high installations
Function
IKD is suited for comfort ventilation of big and
industrial halls. Suitable for heating and cooling because of the adjustable construction.
Installation height is between 4 and 15 m. The
air stream pattern (horizontal or vertical) can
be adjusted manually or by an actuator. The
IKD consists of an inlet cone and an inner and
outer cage with openings for supply air in the
peripheral surface and the underside. Dependent of the operation method the openings in
the peripheral surface (cooling, horizontal air
stream) or the underside (heating, vertical air
stream) are opened. There is no difference in
pressure drop or sound level when the operation method is changed.
ØA
302 180 144 79 260 178 330
Ød
L
K
ØE
ØD
H
IKD 400
402 250 178 98 360 348 400
IKD 500
502 315 200 120 460 313 465
IKD 600
602 400 221 136 560 398 550
IKD 800
802 500 310 185 725 498 650
IKD-PB, With plenum box
IKD-M with Actuator
IKD-D with damper
Mounting
The IKD can be mounted directly in a spiro
duct or combined with the plenum box.
Ordering code
IKD-D-300
(D-Version, Size)
Openings can be fixed by a screw on the
peripheral surface.
IKD 300
At sizes 400-800 the motor is inside the
diffuser, at size 300 the motor is on the outside
Design
The IKD is made of powder coated steel (RAL
9010) and is available in the duct connection
sizes 180, 250, 315, 400 and 500 mm. The
standard type has a perforated plate (flow
straightener). The plenum box is from galvanized steel with included damper.
Versions
IKD – Standard version
D – Damper included
PB – Plenum box with
side entry and
damper
M1 – Actuator 230V
M2 – Actuator 24V
M3 – Actuator 24V
0-10V stepless
control
Dimensions
The IKD will be fixed with 4 screws to the
plenum box. The included damper can be
adjusted from below.
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
The damper is fixed at the duct connection and
can be adjusted from below.
IKD (Cooling, Horizontal outlet -10K)
Size
300
Art No
IKD
-D
-PB
30139
30149
30144
400
30140
30150
30145
500
30141
30151
30146
600
30142
30152
30147
800
30143
30153
30148
Air flow range (m3/h, l/s) and throw I0,2 (m)
3
4
2
∆Pt - Pressure drop (Pa)
6
14
3
5
4
5
3
7
29
52
10
15
40
8
14
44
5
7
10
22
45
4
6
8
2
8
30
20-25
30
35-40
m3/h
200
300
400
650
1100
1550
2550
l/s
56
83
111
181
306
431
708
dB (A)
IKD (Heating, Vertical outlet at +15K)
Size
Art No
IKD
-D
Air flow range (m3/h, l/s) and throw I0,2 (m)
-PB
300
30139
30149
30144
400
30140
30150
30145
500
30141
30151
30146
600
30142
30152
30147
800
30143
30153
30148
2
3
4
2
3
2
∆Pt - Pressure drop (Pa)
5
3
5
2
4
6
14
29
52
10
15
40
8
14
44
10
22
45
2
3
5
2
8
30
m3/h
200
300
400
650
1100
1550
2550
20-25
30
35-40
l/s
56
83
111
181
306
431
708
dB (A)
Round ceiling diffusers | 65
TSD
Circular swirl diffuser with adjustable blades
Function
TSD is designed for comfort ventilation of big
and large volume halls. Suitable for heating and
cooling due to construction with adjustable geometry. Installation height is between 4 and 15
m. The air stream pattern (horizontal, vertical
and intermittent) can be adjusted manually or
by a motor. The TSD consists of an inlet assemble containing the fix blades and frontal conic
outlet and an inner assembly with adjustable
set of deflectors which are mobile.
For cooling, a horizontal outlet air pattern is
achieved when the blades are in closed position. And have a vertical swirl jet stream when
the deflectors are in full open position to
achieve heating in occupied zone. Intermittent
positions can be achieved when the deflectors
are set between closed and full open positions
for ventilation of the occupied zone
Design
The TSD swirl diffusers are manufactured in
steel sheet, with a standard powder paint finish in white colour RAL 9010. Available in the
following diameter: Ø 315, Ø 400, Ø 630 and
Ø 800
Mounting
Mounted directly to the rigid vertical duct, or
mounted to side entry plenum and then fixed
to rigid ceiling with threaded drop-rods.
TSD-M
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local
Dimensions
TSD
TSD-PB
Size
315
400
630
800
Size 315 400
630
800
ØD
313
398
628
798
ØE
464
567
871
1077
ØE 464 567 871 1077 ØF
381
468
700
871
ØF 381 468 700 871 G
145
157
204
229
ØI 317 402 628 798 H
92
101
117
123
ØP
248 313 398 498 J
215
236
367
538
L
474 581 812 1081 M
150 168 293 458 N
282 368 468 568 O
290 351 526 741 K
435
500
750
1000
TSD (Cooling)
Size
Art No
TSD
TSD-M3
-PB
315
42320
42333
311772
400
42321
42334
311773
630
42322
42335
311774
800
42323
42336
311775
Air flow range (m3/h, l/s) and throw I0,2 (m)
5
5
∆Pt - Pressure drop (Pa)
6
5
5
6
5
2
18
41
16
29
47
5
6
11
19
25
5
6
6
6
14
19
20-25
30
35-40
3
m /h
200
400
600
800
1000
1250
1875
2500
l/s
56
111
167
222
278
347
521
694
dB (A)
TSD (Heating)
Size
Art No
TSD
TSD-M3
-PB
315
42320
42333
311772
400
42321
42334
311773
630
42322
42335
311774
800
42323
42336
311775
Air flow range (m3/h, l/s) and throw I0,2 (m)
1
1
∆Pt - Pressure drop (Pa)
2
1
2
2
2
3
4
2
18
41
16
29
47
11
19
25
2
3
4
6
14
19
m3/h
200
400
600
800
1000
1250
1875
2500
20-25
30
35-40
l/s
56
111
167
222
278
347
521
694
dB (A)
66 | Jet diffusers
AJD
Long throw adjustable nozzles
Dimensions
ØD3
ØD4
Function
The AJD long throw nozzle and the decorative ring are manufactured
in aluminium, with a standard powder paint finish in white RAL 9010.
The connection part is manufactured of galvanised steel sheet. The
AJD nozzle has an extraordinarly good aesthetic design and can be
painted by special order to fit any decorative need. The AJD nozzles
provide long throws with a low noise level, releasing a long air jet with
exceptional precision to a length of over 30 metres. They can be used
for spot cooling and are especially appropriate for large rooms requiring
a decorative look, for instance, large vestibules, entertainment areas,
airport halls, department stores, hotels, etc.
The configuration allows the nozzle to swivel in all directions up to a
maximum of ± 30° in the horizontal or vertical direction.
Design
The AJD long throw nozzles are manufactured in aluminium, with a
standard powder paint finish in white RAL 9010. The connection part
is manufactured of galvanised steel sheet. Available in the following
diameter: Ø100, Ø125, Ø160, Ø200, Ø250, Ø315, Ø400.
E
L2
Mounting
With concealed screws
Ordering Code
The ordering code is AJD-100 with sizes
Size
ØD3
ØD4
E
L2
100
146
98
11
78
125
140
123
11
86
160
200
158
11
98
200
257
198
16
117
250
302
248
16
155
315
384
248
23
183
400
467
398
24
208
AJD
Size
Art No
100
41000
125
41001
160
41002
200
41003
250
41004
315
41005
400
41006
Air flow range (m3/h, l/s) and throw I0,2 (m)
21
26
∆Pt - Pressure drop (Pa)
33
24
32
40
25
32
47
37
48
56
37
59
75
42
51
78
57
105
155
68
115
171
46
70
142
57
96
146
37
87
133
37
52
114
61
77
95
36
55
86
m3/h
75
100
125
165
205
305
405
505
630
780
1155
1480
1805
20-25
30
35-40
l/s
21
28
35
46
57
85
112
140
175
217
321
411
501
dB (A)
Jet diffusers | 67
JSR
Circular multi-cone jet diffuser with narrow
concentric or wide cones for long or short air pattern
Function
The JSR is a circular multiple-cone diffuser
for supplying air to large areas, which can be
installed onto a PER plenum box or a duct. A
scattered distribution pattern (short throw) or
concentrated distribution pattern (long throw)
can be set by rotating the diffuser 180°. This
unit can be mounted on either the wall or the
ceiling, and is suitable for both cooled and
heated supply air. The angle of the diffuser
can be set at between 15 and 30° depending
on the distribution pattern.
Dimensions
Concentrated distribution
pattern (long throw)
Scattered distribution
pattern (short throw)
ØD
A
JSR-200
199
115
JSR-250
249
115
JSR-315
314
115
JSR-400
399
115
JSR-500
499
115
The diagram shows Air flow (l/s and m3/h), total
pressure (Pa), throw l0,2 and sound pressure
level [dB(A)].
Soundattenuation, ΔL (dB)
Mid-frequency band, Hz
Design
The JSR is manufactured from sheet metal
with a white powder-coated finish (RAL 901080) and is available in the following diameters:
Ø200, Ø250, Ø315, Ø400 and Ø500.
Mounting
The diffuser is installed directly onto the spiral
duct and fixed with pop rivets. If the diffuser
is fitted to a PER plenum box, there must be a
straight length, 4 times the duct’s diameter, in
front of the PER plenum box.
63 125250500 1k 2k 4k 8k
JSR-200
13 9
4
-
-
-
-
-
JSR-250
11 7
3
-
-
-
-
-
JSR-315
10 5
2
-
-
-
-
-
JSR-400
8
4
1
-
-
-
-
-
JSR-500
7
3
1
-
-
-
-
Sound power level, scattered distribution
pattern, Lw
Lw(dB) = LpA + Kok (LpA = diagram Kok = table)
correction factor Kok
Mid-frequency band, Hz
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
Ordering Code
The ordering code is JSR - 200 with sizes and
the accessory is Plenum box PER with removable damper and test points.
125250500 1k 2k 4k 8k
JSR-200
5
1
1
1 -5 -13-19
JSR-250
5
2
0
0 -5 -12-17
JSR-315
6
1
0
1 -6 -14-18
JSR-400
6
2
1
0 -8 -13-17
JSR-500
8
2
3
0 -9 -13 20
Sound power level, concentrated distribution
pattern, Lw
JSR-200
3 -1 -2 1 -4 -13-18
JSR-250
2 -1 -3 2 -6 -16-20
JSR-315
1 -2 -3 2 -8 -18-21
JSR-400
2 -1 4
0 -9 -14-18
JSR-500
5
0 -13-18-22
0
4
Tolerance ±6 ±3 ±2 ±2 ±3 ±3 ±4
JSR
Size
Art No
JSR
PER
200
6001
6524
250
6002
6525
315
6003
6526
400
6004
6527
500
6005
B505
Air flow range (m3/h, l/s) and throw I0,2 (m)
6
9
∆Pt - Pressure drop (Pa)
12
7
10
13
6
8
13
7
9
11
16
34
52
13
38
59
12
24
49
15
28
41
6
8
11
12
23
34
m3/h
300
400
500
600
750
1100
1450
1800
2400
3000
20-25
30
35-40
l/s
83
111
139
167
208
306
403
500
667
833
dB (A)
68 | Displacement diffusers
LPS
Displacement diffuser suspended or mounted against
the ceiling for low velocity ceiling air distribution
Function
The LPS for individually suspended installation
is suitable for isothermal air as well as comfort
cooling. LPS and LPSW is a supply air system
for draught-free air supply in various premises
such as shops, schools, offices and industries.
LPS is a supply air system for constant or variable airflow. The design provides an even air
distribution over the whole exhaust area of
the diffuser. LPSW is used when aesthetic and
hygienic reasons make it suitable to integrate
the supply air with the ceiling.
Dimensions
LPSW
LPSW
ØD1
ØD2
A B
LPS
160-500
200-500
250-500
315-500
400-500
500-500
160-1000
200-1000
250-1000
315-1000
400-1000
500-1000
LPSW-T
C
ØD1
A B
L
517
517
517
517
517
517
1012
1012
1012
1012
1012
1012
ØD1
159
199
249
314
399
499
159
199
249
314
399
499
ØD2
161
201
251
316
401
501
161
201
251
316
401
501
Selection Table
Table below shows the general product performance for more details please see selection
software or contact your local systemair office.
L
ØD1
ØD2
205
517
199
201
250-500
295
255
517
249
251
315-500
360
620
517
314
316
200-1000 245
205
517
199
201
250-1000 295
255
517
249
251
315-1000 360
620
517
314
316
LPSW-T
ØD1
L
B
245
L
LPS
ØD2
A
200-500
ØD1
L
4x
D
d
d
A
B
C
L
ØD1
200-500
245
205
300
1085
199
250-500
295
588
325
1085
249
315-500
360
320
355
1085
314
Minimum distance
Minimum distance according to table A.
After a disturbance such as a T-bend, bend
etc. a non-perforated duct (powder coated
duct) with a length of minimum 4 x the duct
diameter should be installed. Recommended
max. temperature difference for cooled air
ΔT according to table A. Recommended min.
distance between supply air ducts (c) is shown
in the table. The distance from supply air
duct to wall (d) should be at least half of that
distance.
c
b
Table shows Air flow directed upwards can
provide a cooling effect of 50 to 200 W/m2
a
SidewaysDownwardsUpwards Around
a
2300
2500
2300
b
100
50
200
2300
200
c
2500
2500
2500
2500
d
1300
1300
1300
1300
Δt
0 to -10
0
-1 to -10 0 to 4
Displacement diffusers | 69
70 | Air volume controllers
RDA
Constant volume damper for duct or air inlets
Function
The air flow regulator RDA is an element
placed inside the duct in order to obtain a
constant flow within a pressure range from
50 to 200 Pascal. It is used in ventilation or
air conditioning systems for supply or return
air. The air is forced to pass through predetermined space in which a flap can change the
position according to the specified air flow.
The flap is attached on to a calibrated spring
and therefore no auxiliary power is needed.
Dimensions
D1
1
2
L
L
15
25
29
32
35
30
26
31
35
38
45
27
33
36
39
60
32
37
39
42
75
32
37
40
42
90
32
38
41
44
120
30
34
39
42
150
33
37
41
45
Tests reports : CETIAT 2315002 for air flow RD
Ø80 to RD Ø125 mm
Air flow in m3/h
Lw in dB(A)
200
Pa
3
Airflow LW dB(A)
(m3/h) 50Pa
1
Flow regulators are characterized by their
noise level in dB(A).
150
Pa
D2
D1
Ordering Code
RDA-80/15
80 - size
15 - air volume
100
Pa
ØD2
73
93
117
spacer
Mounting
RDA is inserted directly into a horizontal or
vertical circular duct. It is fixed and kept airtight by a lip seal. Arrow indicates the airflow.
If the unit is placed in supply duct, the space
between the diffuser and the unit must be
at least 3x diameter of the duct. If used for
return air the space must be 1x diameter of
the duct.
50 Pa
ØD1
76
96
120
*spacer
= special body without spacers
1* air flow = special shims with air flow ref.
Design
RDA is made from plastic material (polystyrene) classified M1 in grey colour. Maximum
temperature is 60°C.
Flow
(m³/h)
L
55
60
90
Ø
80
100
125
∆PT, Differential pressure in Pa
100Pa
150Pa
200Pa
D2
15
25
29
32
35
30
26
31
35
38
2
45
27
33
36
39
60
32
37
39
42
75
32
37
40
42
90
32
38
41
44
120
30
34
39
42
150
33
37
41
45
3
Type RDA-80 /15 (m³/h) RDA-80 / 30 (m³/h) RDA-80 / 45 (m³/h) RDA-80 / 50 (m³/h) RDA-80 / 60 (m³/h) RDA-100 / 15 (m³/h) RDA-100 / 30 (m³/h) RDA-100 / 45 (m³/h) RDA-100 / 50 (m³/h) RDA-100 / 60 (m³/h) RDA-100 / 75 (m³/h) RDA-100 / 90 (m³/h) RDA-100 / 100 (m³/h) RDA-125 / 15 (m³/h) RDA-125 / 180 (m³/h) RDA-125 / 30 (m³/h) RDA-125 / 45 (m³/h) RDA-125 / 50 (m³/h) RDA-125 / 60 (m³/h) RDA-125 / 75 (m³/h) RDA-125 / 90 (m³/h) RDA-125 / 100 (m³/h) RDA-125 / 120 (m³/h) RDA-125 / 150 (m³/h) Art No
35259
35260
35261
35262
35263
35265
35266
35267
35268
35269
35270
35271
35272
35274
35280
35275
35276
35277
35214
35213
35212
35278
35211
35279
Air volume controllers | 71
RPK-R
Constant volume damper with adjustable air flow
Description
RPK is a constant air flow regulator which is used for exact mechanical
setting of required air volume in ventilation systems without need of
any other energy.
RPK is characterized by:
• regulation accuracy
• easy mounting
• maintenance-free
• tight connection with the duct
RPK-R main dimensions
Function
The RPK enables regulation of individually required amounts of air in
separate ventilation system zones. RPK works in temperature from -20
to 80°C and relative humidity up to 80%. Recommended air flow velocity is from 3 to 8 meters per second at pressure difference to Δp 500
Pa. Accuracy is ±5 %(±10% for outer settings).
Design
The RPK is manufactured from galvanized sheet metal, only the blade
is from aluminium. All steel parts are zinc plated, spring is made from
high quality steel. Sliding bearing is suitable for high temperatures and
doesn´t require any lubrication. The cover of adjusting mechanism is
made from ABS plastic and the plastic functional parts are from PA
plastic.
Mounting
Regulator can be mounted to horizontal, diagonal or vertical duct. The
blade must be always horizontal. It is necessary to pay attention to
correct direction of mounting, so that the air is entering the regulator
according to the arrow direction, which is located on regulator casing.
Connecting the duct and the regulator is done according to its size with
grub screws ø3,2x13 to ø3,9x16, or with rivets of the same diameters
and the connection is sealed with sealing tape. After mounting, set the
required air volume by turning the working screw on the controller box.
Way of mounting RPK-R
Nominal dimensions
Size (mm)
80
100
125
140
160
180
200
250
315
Art No
40972
40667
40668
40669
40670
40671
40672
40673
40674
V [m/s]
4,3-8,4
3,7-7,5
3,2-7,1
3,6-6,4
4,3-8,9
2,8-8,1
3,2-7,3
3,8-7,5
3,1-6,4
q [m3.h-1]
75-140
100-200
125-300
190-340
300-620
250-720
350-800
650-1300
850-1750
Ød1 [mm]
78
97
122
13
157
177
197
247
312
Ød2 [mm]
170
190
215
230
250
270
290
340
405
L [mm]
350
350
360
370
380
390
400
425
500
L1 [mm]
260
260
270
280
290
300
310
335
410
L2 [mm]
76
86
100
107
117
128
138
164
196
L3 [mm]
123
136
148
156
166
176
186
208
243
M [kg]
0.8
1
1.2
1.4
1.6
1.9
2.1
3.3
5
m(i) [kg]
1.7
2.1
2.4
2.8
3.2
3.6
4
5.8
8.3
72 | Air volume controllers
SPI
Iris damper for measuring and adjusting air flow
Function
The SPI is an iris damper for measuring and adjusting the air flow. The SPI has the following
specifications: low noise level, centrically formed air flow and fixed test points for precise measurements. The damper also has an adjustment aperture which can be opened completely, which
means there is no need for an access door for cleaning. Available in sizes
Ø80-630. Max temperature for SPI is 70°C.
Dimensions
Design
The damper is manufactured from galvanised sheet steel and is fitted with a rubber seal tested
for air-tightness.
Mounting
The SPI adjustment damper must be installed in accordance with the distances required to
minimise air-flow deviation. The SPI enables the taking of precise air-flow measurements at all
points including points close to duct deviations such as T junctions and bends, and points in front
of other supply-air devices (see below).
Protective distance
before bends
after“
before T-pipes
after “
before supply-air devices
1 X ØD
1 X ØD
3 X ØD
1 X ØD
3 X ØD
Selection Table
Table below shows the general product performance for more details please see selection software or contact your local systemair office.
ordering code
The ordering code is SPI - 160 with sizes.
SPI-80
SPI-100
SPI-125
SPI-150
SPI-160
SPI-200
SPI-250
SPI-300
SPI-315
SPI-400
SPI-500
SPI-630
SPI-800
Art No
7621
6750
6751
6752
6753
6754
6755
6756
6757
6758
7625
7626
6881
Ød
79
99
124
149
159
199
249
299
314
399
499
629
798
C
110
54
63
54
60
62
62
65
63
70
60
60
70
ØD
125
163
210
230
230
285
333
405
406
560
644
811
1015
Air volume controllers | 73
SPM
Iris damper for measuring and adjusting air flow
with more choking ability
Description
Systemair SPM iris damper with more choking ability. The SPM is an iris damper for measuring
and adjusting the air flow, with more choking ability than the SPI. The SPM has the following
specifications: low noise level, centrically-formed air flow and fixed test points for precise measurements. Available is sizes 0160-400.
Dimensions
Design
The damper is manufactured from galvanised sheet steel and is fitted with an air-tight rubber
seal. Size 0160-400.
How to use for exhaust air
This device can be used for exhaust air.
Ød
C
ØD
Mounting
The SPM adjustment damper must be installed in accordance with the distances required to
minimise air-flow deviation. Reducing or enlarging the duct to the next duct size does not require
any specified distances for minimising deviation. The SPM enables the taking of precise air-flow
measurements at all points including points close to duct deviations such as T junctions and
bends, and points in front of other supply-air devices.
Selection Table
Table below shows the general product performance for more details please see selection software or contact your local systemair office.
Ordering Code
The ordering code is SPM - 160 with sizes and the accessory is Access door for cleaning RLL.
Protective distance
before bends
after“
before T-pipes
after “
before supply-air devices
1 X ØD
1 X ØD
3 X ØD
1 X ØD
3 X ØD
SPM-160
SPM-200
SPM-250
SPM-300
SPM-315
SPM-400
Art No
6257
6253
6254
6238
6255
6256
Ød
159
199
249
299
314
399
C
60
62
62
65
63
70
ØD
230
285
333
405
406
560
74 | Air volume controllers
SPI-F
Actuator driven iris dampers
Function
The SPI-F models are iris dampers fitted with a motor designed for controlling the air flow using
two predetermined settings. The minimum and maximum air-flow settings are adjusted with
the help of a measuring nipple, and are fixed mechanically with damper stops. The SPI-F models
have a low sound level and produce a centrically patterned airflow. They are ideal for use as
adjustable, motorised dampers.
Dimensions
Design
This air-supply device consists of an SPI iris damper with an actuator for forced air flow. It is
manufactured from galvanised sheet steel, equipped with test points for easy setup. Units are
fitted with Belimo actuators, type LM24A or LM230A. Versions of the iris damper with a 0-10V
modulating control signal are fitted with Belimo actuators type LM24A-SR.
Mounting
The SPI-F adjustment damper must be installed in accordance with the distances required to minimise air-flow deviation. Reducing or enlarging the duct to the next duct size does not require
any specified distances for minimising deviation. The SPI-F enables the taking of precise airflow
measurements at all points including points close to duct deviations such as T-junctions and
bends, and points in front of other supply-air devices.
Protective distance
Before bends After “
Before T-pipes After “
Before supply-air devices 1 x ØD
1 x ØD
3 x ØD
1 x ØD
3 x ØD
C
L
E
F
SPI-F-100
82
215
185
122
SPI-F-125
106
235
195
130
SPI-F-160
116
265
200
135
SPI-F-200
143
285
210
135
SPI-F-250
167
365
210
130
SPI-F-315
203
408
210
130
Type
LM230A
SPI-F-100
6335
SPI-F-125
6337
SPI-F-160
6339
SPI-F-200
6342
SPI-F-250
6344
SPI-F-315
6346
Art No
LM24A
6336
6338
6340
6343
6345
6347
LM24A-SR
6348
6349
6350
6352
6353
6355
Air volume controllers | 75
SPM-F
Actuator driven iris damper with more choking ability
Function
The SPM-F models are iris dampers fitted with a motor designed for controlling the air flow using
two predetermined settings. The minimum and maximum air-flow settings are adjusted with the
help of a measuring nipple, and are fixed mechanically with damper stops. The SPM-F models
have a low sound level and produce a centrically patterned airflow. They are ideal for use as
adjustable, motorised dampers.
Dimensions
Design
This air-supply device consists of an SPM iris damper with an actuator for forced air flow. It is
manufactured from galvanised sheet steel, equipped with test points for easy setup. Units are
fitted with Belimo actuators, type LM24A or LM230A. Versions of the iris damper with a 0-10V
modulating control signal are fitted with Belimo actuators type LM24A-SR.
Mounting
The SPM-F adjustment damper must be installed in accordance with the distances required to
minimise air-flow deviation. Reducing or enlarging the duct to the next duct size does not require
any specified distances for minimising deviation. The SPM enables the taking of precise airflow
measurements at all points including points close to duct deviations such as T junctions and
bends, and points in front of other supply-air devices.
Protective distance
before bends
after“
before T-pipes
after “
before supply-air devices
1 X ØD
1 X ØD
3 X ØD
1 X ØD
3 X ØD
C
D
E
F
SPM-F-160
116
265
200
135
SPM-F-200
143
285
210
135
SPM-F-250
167
365
210
130
SPM-F-315
203
408
210
130
Type
LM230A
SPM-F-160
6356
SPM-F-200
6358
SPM-F-250
6360
SPM-F-315
6362
Art No
LM24A
6357
6359
6361
6363
LM24A-SR
6364
6365
6326
6327
76 | Air volume controllers
RSK
Back draft damper for circular ducts
Function
Back draft damper for circular ducts, manufactured from galvanised
sheet steel. The two blades are spring-loaded, which means that the
damper can also be mounted vertically
Dimensions
Selection Table
Table below shows the general product performance for more details
please see selection software or contact your local
RSK100
RSK125
RSK150
RSK160
RSK200
RSK250
RSK315
RSK355
RSK400
RSK450
RSK500
RSK560
RSK630
RSK 100-160 PRESSURE DROP
RSK 200-315 PRESSURE DROP
Art No
5597
5598
5599
5601
5602
5603
5604
9972
9973
9768
7349
9769
9770
ØA
100
125
150
160
200
250
315
355
400
450
500
560
630
RSK 450-560
D
80
100
100
120
140
140
140
247
247
247
247
247
247
B
24
33
34
42
55
54
50
75
75
75
75
75
75
C
33
44
43
55
62
62
65
75
75
75
75
75
75
Air volume controllers | 77
VKK
Back draft damper
Function
Back draft damper for installation in horizontal ducts. The profiled vanes
produce a strong upward force which reduces the air resistance. This
means that the vanes open fully at low air velocities as well.
Dimensions
Design
The box is manufactured from galvanised sheet steel. The damper
inside the box is manufactured in weather-resistant and shock-proof
nylon material. The robust construction ensures that the vanes will not
become deformed or loose. Air velocity should not exceed 12 m/s.
Selection Table
Table below shows the general product performance for more details
please see selection software or contact your local
VKK 100
VKK 125
VKK 160
VKK 200
VKK 250
VKK 315
VKK 400
Art No
1623
1624
1625
1626
1627
1628
1629
* Airflow
** Free area
Ø
100
125
160
200
250
315
400
A
123
123
123
123
123
123
123
B
199
199
199
199
239
239
259
C
205
205
205
302
302
350
454
D
200
200
200
300
300
345
450
E
201
201
201
297
297
345
450
78 | Air volume controllers
VK
Louver shutter for external mounting on a wall
ØD
ØE
A
Art No
VK 10
5636
VK 12
5638
VK 15
5605
VK 20
5639
VK 25
5640
VK 30
5641
VK 35
5642
VK 40
5643
VK 45
5645
VK 50
5646
VK56* 9951
VK63* 5651
VK71* 5653
A
142
164
178
245
299
347
397
460
501
549
610
701
749
B
B
15
12
20
20
25
26
26
26
31
31
30
31
31
C
103
115
130
190
235
274
310
364
395
445
530
626
663
D
96
117
152
210
260
310
360
423
460
510
530
660
710
E
5
5
4
5
5
5
5
5
5
5
5
5
5
F
46
38
50
50
70
70
70
65
70
95
80
85
90
G
3
4
5
6
5
6
7
8
6
7
14(2x7)
16(2x8)
18(2x9)
G= number of blades
* Side by side shutters
A
F
C
E
H
D
Selection Table
Table below shows the general product performance for more details
please see
F
ØC
A
Design
All the parts are manufactured in weather-resistant and shockproof nylon material (PVC containing special synthetic). The robust construction
ensures that the vanes will not become deformed or loose. Above size
45, the vanes are fitted with a cast counterweight. Air velocity should
not exceed 12 m/s. The louver shutters are easy to install. Wall plugs
and screws are included above size 15.
Dimensions
B
Function
Louvre shutters for vertical mounting on a wall. The profiled vanes
produce a strong upward force which reduces the air resistance. This
means that the vanes opens fully at low air velocities as well.
G
I
Art No A
VK 40-20 5644 455
VK 50-25 5674 555
VK 50-30 5648 555
VK 60-30 5649 655
VK 60-35 5650 655
VK 70-40 5652 755
VK 80-50 5655 846
VK 100-50 5637 1146
J* = Thickness frame
B
15
15
15
15
15
15
15
15
C
452
552
552
2x309
2x309
2x359
2x405
2x560
D
255
305
355
355
405
455
555
555
E
215
265
315
315
365
415
515
506
F
415
515
515
615
615
715
806
1097
G
XX
XX
XX
30
30
30
30
28
H
285
335
385
385
435
485
585
585
I
485
585
585
685
685
785
876
1176
J*
44
44
44
44
44
44
44
42
Louvers | 79
IGC
Circular external louver
Function
Louver designed for intake or exhaust air..
Dimensions
Ød
Selection Table
Table below shows the general product performance for more details please see selection software or contact your local
IGC-100
IGC-125
IGC-160
IGC-200
IGC-250
IGC-315
ØD
Design
Connection diameters ø 100-315 mm, and is manufactured from die-cast aluminium and supplied with a mesh designed to keep out large insects
ød
100
125
160
200
250
315
øD
125
150
185
225
275
350
Ø D = outside diameter
Ø d = connection diameter
IGC
Size
Art No
Min AirFlow (m /hr)
Min Pressure (pa)
Max AirFlow (m3/hr)
Max Pressure (pa)
100
5581
35
5
140
100
125
5582
50
4
210
100
160
5583
80
5
320
100
200
5584
125
5
500
100
250
5585
200
7
750
100
315
5586
300
7
1200
100
3
80 | Louvers
IGK
Square external Louver
Function
Intake grid manufactured from galvanised sheet steel with wall flange
and insect mesh. Connection sleeve with a rubber seal.
Dimensions
Selection Table
Table below shows the general product performance for more details
please see selection software or contact your local
IGK 100
IGK 125
IGK 160
IGK 200
ØA
B
100
125
160
200
37
37
37
41
IGK
Size
Art No
Min AirFlow (m /hr)
Min Pressure (pa)
Max AirFlow (m3/hr)
Max Pressure (pa)
100
1630
70
2
760
160
125
1631
70
2
760
160
160
1632
70
2
760
160
200
1633
70
2
760
160
3
Plenum boxes | 81
PRG
Rear, side or top entry insulated plenum box
designed for rectangular grilles
Plenum box
The PRG plenum box is manufactured from galvanised sheet steel with
connection sleeves (rear, top or side) fitted with rubber seals tested for
air-tightness. Acoustically insulated with basotec material.
Dimensions
The PRG plenum box can be used for both supply and exhaust air, and
can be used in conjunction with a grille for pressure reduction, airstream balancing and sound attenuation, as well as for measuring and
adjusting the air flow. The damper and measuring units facilitate easy
cleaning.
3
1
2
The k-factor for adjustment is indicated on the damper itself. PER plenum boxes are manufactured from galvanised sheet steel with connection sleeves fitted with rubber seal tested for air-tightness. Acoustically
insulated with basotec material.
3
The PER plenum box can be used for both supply and exhaust air. To
ensure correct settings, there must be a straight length of supply-air
duct, its length equivalent to 4 times the duct diameter, before the
plenum box.
1
2
Ordering code
The ordering code is
Balance - PRG - 1- 500 x 200 where
1 = rear connection,
2 = side connection,
Width x height of the outlet
and 3 = top connection.
PRG
PRG-1
PRG-2
PRG-3
A
B
C
ØD
E
F
G
200x100
6211
6220
6426
200
100
175
123
50
240
120
300x100
6212
6221
6427
300
100
210
158
50
280
140
400x100
6213
6222
6430
400
100
210
158
50
280
140
500x100
6214
6223
6428
500
100
250
198
55
310
155
300x150
6215
6224
6431
300
150
250
198
55
310
155
400x150
6216
6225
6429
400
150
300
248
55
360
180
500x150
6217
6226
6432
500
150
300
248
55
360
180
500x200
6218
6193
6433
500
200
370
313
55
420
210
600x200
6219
6194
6434
600
200
370
313
55
420
210
82 | Plenum boxes
PER
Side entry plenum box designed for circular inlet diffusers
Plenum box
PER plenum boxes are manufactured from galvanised sheet steel with
connection sleeves fitted with rubber seal tested for air-tightness.
Acoustically insulated with basotec material. The PER plenum box can
be used for both supply and exhaust air. To ensure correct settings,
there must be a straight length of supply-air duct, its length equivalent
to 4 times the duct diameter, before the plenum box.
Dimensions
The PER plenum box is used together with air diffusers for pressure
reduction, air-flow balancing and sound attenuation as well as for measuring units are removable. The k-factor for adjustments is indicated on
damper itself.
PER
100-125
125-200
160-200
200-250
250-315
315-400
Art No
6522
6523
6524
6525
6526
6527
A
250
250
300
350
450
550
B
320
360
450
500
565
620
C
150
160
195
250
300
400
D
47
47
47
54
54
54 E
185
210
280
305
330
360
ØD1
99
124
159
199
249
314
ØD2
126
161
202
252
317
402
Plenum boxes | 83
VVK
Side entry plenum box designed for square ceiling diffusers
Function
The VVK plenum box is an accessory to the VVKR or VVKN square ceiling
diffuser. Its main use is the reduction of noise and equalize the air flow.
It is suitable for supply or return air. Inside the box is a perforated plate.
Plenum box has a side connection with damper included.
Dimensions
Design
The VVK plenum box is manufactured from galvanized steel sheet.
Mounting
The plenum box is mounted to the ceiling with rods through included
openings.
Ordering code
VVK-0-P-H-1-Q-300
Non-insulated supply plenum with damper on inlet for Square diffuser
Size
300
400
500
600
625
Art No
41073
41074
41075
41076
41458
D(mm)
158
198
198
248
248
K(mm)
290
390
490
590
615
H1(mm)
270
280
290
340
340
Hella-A-PB
Plenum box for Hella linear slot diffuser
Function
Plenum box for Hella linear slot diffuser simplifies the installation of the
slot diffuser itself, reduces the noise levels and air speed. Plenum box
can be used for supply or return air. Standard supply is with side connection.
Dimensions
Design
Plenum box is manufactured from galvanized steel sheet. For diffuser
length up to 1,5m only one plenum box is used for 1,5 to 2,4 meter two
plenum boxes are used.
Mounting
Plenum box is mounted to the ceiling with rods through included openings and the diffuser is installed into the plenum box with screws.
Ordering Code
Hella-A-PB-aaaa-b
a = Length of the slot diffuser
B = Number of slots
Insulated supply plenum with damper on inlet for linear slot diffuser
Item name
Hella-A-PB-600-1
Hella-A-PB-1200-1
Hella-A-PB-1800-1
Hella-A-PB-2400-1
Hella-A-PB-600-2
Hella-A-PB-1200-2
Hella-A-PB-1800-2
Hella-A-PB-2400-2
Hella-A-PB-600-3
Hella-A-PB-1200-3
Hella-A-PB-1800-3
Hella-A-PB-2400-3
Hella-A-PB-600-4
Hella-A-PB-1200-4
Hella-A-PB-1800-4
Hella-A-PB-2400-4
Art No
42349
42350
42351
42352
42353
42354
42355
42356
42357
42358
42359
42360
42361
42362
42363
42364
H
221
221
221
221
272
272
272
272
374
374
374
374
374
374
374
374
L
569
1169
1769
2369
569
1169
1769
2369
569
1169
1769
2369
569
1169
1769
2369
E
47
47
47
47
87
87
87
87
127
127
127
127
167
167
167
167
ØD
125
125
125
125
160
160
160
160
200
200
200
200
200
200
200
200
F
76
76
76
76
94
94
94
94
114
114
114
114
114
114
114
114
84 | Theory
ACOUSTICS
Basic principles of sound
Before we discuss the connection between the sound power level and
the sound pressure level, we must define certain basic concepts such as
sound pressure, sound power and frequency.
Sound pressure
Sound pressure is the pressure waves with which the sound moves in
a medium, for instance air. The ear interprets these pressure waves as
sound. They are measured in Pascal (Pa).
The weakest sound pressure that the ear can interpret is 0.00002 Pa,
which is the threshold of hearing. The strongest sound pressure which
the ear can tolerate is 20 Pa, referred to as the upper threshold of
hearing. The large difference in pressure, as measured in Pa, between
the threshold of hearing and the upper threshold of hearing, makes the
figures difficult to handle. So a logarithmic scale is used instead, which
is based on the difference between the actual sound pressure level
and the sound pressure at the threshold of hearing. This scale uses the
decibel (dB) unit of measurement, where the threshold of hearing is
equal to 0 dB and the upper threshold of hearing is 120 dB. The sound
pressure reduces as the distance from the sound source increases, and
is affected by the room’s characteristics and the location of the sound
source.
Sound power
Sound power is the energy per time unit (Watt) which the sound source
emits. The sound power is not measured, but is calculated from the
sound pressure. There is a logarithmic scale for sound power similar to
the scale for sound pressure.
The sound power is not dependent on the position of the sound source
or the room’s sound properties, and it is therefore easier to compare
between different objects.
Frequency
Frequency is a measurement of the sound source’s periodic oscillations.
Frequency is measured as the number of oscillations per second, where
one oscillation per second equals 1 Hertz (Hz). More oscillations per
second, i.e. a higher frequency, produces a higher tone.
Frequencies are often divided into 8 groups, known as octave bands: 63
Hz, 125 Hz, 250 Hz, 500 Hz, 1000 Hz, 2000 Hz, 4000 Hz and 8000 Hz.
Theory | 85
Sound power level and sound pressure level
There is a link between a sound source’s sound power level and the
sound pressure level. If a sound source emits a certain sound power
level, the fol-lowing factors will affect the sound pressure level:
The position of the sound source in the room, including the direction
factor (1), the distance from the sound source (2) and the room’s soundabsorbing properties, referred to as the room’s equivalent absorption
area (3).
1) Direction factor, Q
The direction factor indicates the sound’s distribution around the
soundsource. A distribution in all directions, spherical, is measured as
Q = 1.Distribution from a diffuser positioned in the middle of a wall is
hespherical,measured as Q = 2.
Q=4
Q=8
Q=2
Q=1
Q = 1 In centre of room
Q = 2 On wall or ceiling
Q = 3 Between wall or ceiling
Q = 4 In a corner
Figure 1. The distribution of sound around the sound source.
2) Distance from sound source, r
Where r indicates the distance from the sound source in metres.
3) The room's equivalent absorption area, AeqvA material's ability to
absorb sound is indicated as absorption factor α. The absorption factor
can have a value between '0' and '1', where the value '1' corresponds to
a fully absorbent surface and the value '0' to a fully reflec-tive surface.
The absorption factor depends on the qualities of the material, and
tables are available which indicate the value for different materials.
A room's equivalent absorption area is measured in m2 and is obtained
by adding together all the different surfaces of the room multiplied by
their respective absorption factors.
In many instances it can be simpler to use the mean value for sound
absorption in different types of rooms, together with an estimate of the
equivalent absorption area (see figure 2).
Calculation of equivalent absorption area Aeqv
Aeqv = α1 . S1 + α2 . S2 + … + αn + Sn
where
S = Size of surface (m2)
α = Absorption factor, depending on the material
n = Number of surfaces
Calculation of sound pressure level
Estimate based on figures 1, 2 and 3 together with
table 1.
A normally damped room in a nursing home,
measuring 30 m3, is to be ventilated. According to
the information in the catalogue, the directional
supply-air terminal device fitted in the ceiling has
a sound pressure level (LpA) of 33 dB(A). This applies to a room with a space damping equivalent to
10 m2 Sabine, or 4 dB(A).
A) What will the sound pressure level be in this
room, 1 m from the diffuser?
The sound pressure level depends on the
room'sacoustic properties, so first of all it is
necessary toconvert the value in the catalogue to a
soundpower level (LWA).
Fig.3 shows that ∆L (space damping) = LpA LWA
LWA = LpA + ∆L
LWA = 33 + 4 = 37 dB(A)
86 | Theory
3) Equivalent absorption area based on estimates
If values are not available for the absorption factors of all the surfaces,
and a more approximate value of the room's total absorption factor is
quite adequate, an estimate can be calculated in accordance with the
diagram below. The diagram is valid for rooms with normal proportions,
for example 1:1 or 5:2.
With the following valuesr = 1Q = 2 (fig.1)and
information about the room's dimensions, you
can calculate the equivalent absorption area
with the help of figure 2.
Use the diagram as follows to estimate the equivalent absorption area:
calculate the room's volume and read off the equivalent absorption
area with the correct mean absorption factor, determined by the type of
room, see also table 1.
The equivalent absorption area is therefore
4 m2.It is now possible to use figure 3 to
establish the difference between the sound
pressure and the sound power
LpA - LWA = 0
LpA = 0 + LWA
Enter the LWA value which has already been
calculated.
LpA = 0 + 37 = 37 dB(A)
Figure 2. Estimate of equivalent absorption area.
Type of room
Radio studios, music rooms
Mean absorption factor
0.30 - 0.45
TV studios, department stores, reading
rooms
0.15 - 0.25
Domestic housing, offices, hotel rooms,
conference rooms, theatres
0.10 - 0.15
School halls, nursing homes, small churches
0.05 - 0.10
Industrial premises, swimming pools, large
churches
0.03 - 0.05
Table 1. Mean absorption factors for different types of rooms.
Calculation of sound pressure level
With the help of the factors previously described, it is now possible to
calculate the sound pressure level if the sound power level is known.
The sound pressure level can be calculated by means of a formula
incorporating these factors, but this equation can also be reproduced in
the form of a diagram.
A) The sound pressure level (LpA) one metre
from the diffuser in this particular nursing
home room is therefore 37 dB(A).
This calculation has to be made for all rooms
not corresponding to the information in the
catalogue which assumes a standard 10 m2
Sabine.
The less damped (harder) the room is, the
higher the actual sound pressure level will be
in comparison with the value indicated in the
catalogue.
Theory | 87
When the diagram is used for calculating the sound pressure level, you
must start with the distance in metres from the sound source (r), apply
the appropriate directional factor (Q), and then read off the difference
between the sound power level and the sound pressure level next to
the relevant equivalent absorption area (Aeqv). This result is then
added to the previously calculated sound power (see also the example
on page 445).
Calculation of sound pressure level
where
LpA = sound pressure level (dB)
LwA = sound power level (dB)
Q = direction factor
r = distance from sound source (m)
Aeqv= equivalent absorption area (m2 Sabine)
Figure 3. Diagram for estimating the sound pressure level
Near field and reverberation field
Near field is the term used for the area where the sound from the sound
source dominates the sound level. The reverberation field is the area
where the reflected sound is dominant, and it is no longer possible to
determine where the original sound comes from.
Calculation of reverberation time
If a room is not too effectively damped (i.e.
with amean absorption factor of less than
0.25), the room's reverberation time can be
calculated withthe help of Sabine's formula:
where
The direct sound diminishes as the distance from the sound source
increas-es, while the reflected sound has approximately the same value
in all parts of the room.
T = Reverberation time (s)
V = Room volume (m3)
Aeqv=The room's equivalent absorption
area, m2
Figure 4. Direct and reflected sound
The reverberation time indicates the time it takes for the sound level
to reduce by 60 dB from the initial value. This is the echo effect one
hears in a quiet room when a powerful sound source is switched off.
If the reverberation time is measured precisely enough, the equivalent
absorption area can be calculated.
88 | Theory
Several sound sources
To establish the total sound level in a room, all the sound sources must
be added together logarithmically. It is, however, often more practicable
to use a diagram to calculate the addition or subtraction of two dB
values.
Example of addition
There are two sound sources, 40 dB and 38 dB
respectively.
1) What is the value of the total sound level?
Addition
The input value for the diagram is the difference in dB between the two
sound levels which are to be added. The dB value to be added to the
highest sound level can then be read off the y scale.
The difference between the sound levels is 2
dB and, according to the diagram, 2 dB must
be added to the highest level.
1) The total sound level is therefore 42 dB.
Figure 5. Logarithmic addition.
Subtraction
The input value for the diagram is the difference in dB between the total
sound level and the known sound source. The y scale then shows the
number of dB that have to be deducted from the total sound level to
obtain the value for the unknown sound source.
Example of subtraction
The total sound level is 34 dB in a room fitted
with both supply and exhaust ventilation
systems.It is known that the supply system
produces 32 dB, but the value for the exhaust
system is not known.
2) What is the sound level produced by the
ex-haust system?
The difference between the total sound level
andthe sound level of the supply system is 2
dB.The diagram indicates that 4 dB must be
deducted from the total level.
Figure 6. Logarithmic subtraction.
2) Therefore the exhaust system produces
30 dB.
Theory | 89
Adjustment to the ear
Because of the ear's varying sensitivity at different frequencies, the
same sound level in both low and high frequencies can be perceived
as two dif-ferent sound levels. As a rule, we perceive sounds at higher
frequenciesmore easily than at lower frequencies.
A filter
The sensitivity of the ear also varies in response to the sound's
strength.A number of so-called weighting filters have been introduced
to compen-sate for the ear's variable sensitivity across the octave band.
A weighting filter A is used for sound pressure levels below 55 dB. Filter
B is used for levels between 55 and 85 dB, and filter C is used for levels
above 85 dB
Table 2. Damping with the A filter
The A filter, which is commonly used in connection with ventilation
systems, has a damping effect on each octave band as shown in table
2.The resultant value is measured in dB(A) units
NR curves
Hz
63
250
500
1k
2k
4k
8k
dB
-26,2 -16.1 -8.6
125
-3.2
0
+1.2
+1.2
-1.1
Figure 7. Damping with different filters
When calculating a sound level without A filter damping, for example in
a duct system, it is simply a matter of adjusting the damped values in
ac-cordance with table 2. So, for example, 26.2 dB must be added at 63
Hz, while 1.2 dB must be deducted at 2,000 Hz.
There are also other ways of compensating for the ear's sensitivity to
differ-ent sound levels, apart from these filters. A diagram with NR
curves (Noise Rating) shows sound pressure and frequency (per octave
band). Points on the same NR curve are perceived as having the same
sound levels, meaning that 43 dB at 4000 Hz is perceived as being as
loud as 65 dB at 125 Hz.
90 | Theory
Sound attenuation
Sound attenuation is principally achieved in two ways: either by absorption or by reflection of the sound.
Attenuation by absorption is achieved by internal insulation in ducts,
byspecial silencers or by means of the room's own sound absorption.
Attenuation by reflection is achieved by forking or bending, or when
the sound bounces back from a supply-air device into the duct, which is
referred to as end reflection.
The degree of sound attenuation can be calculated by using tables and
diagrams presented in the relevant suppliers technical documentation.
Theory | 91
VENTILATION
There are essentially two ways of ventilating a building: ventilation
bydisplacement and ventilation by diffusion.
Ventilation by displacement is chiefly used to ventilate large industrial
premises, as it can remove large volumes of impurities and heat if
properly dimen-sioned. The air is supplied at low velocity directly into
the occupied zone. This method provides excellent air quality, but is less
suitable for offices and other smaller premises because the directional
supply-air terminal device takes up a considerable space and it is often
difficult to avoid some amount of draught in occupied areas.
Ventilation by displacement
Air which is somewhat cooler than the ambient air
flows at low velocity into the occupied zone.
Ventilation by diffusion is the preferable method for supplying air in
situa-tions requiring what is known as comfort ventilation. This is based
on the principle of supplying air outside the occupied zone which then
circulatesthe air in the entire room. The ventilation system must be
dimensioned so that the air which circulates in the occupied zone is
comfortable enough, in other words the velocity must not be too high
and the temperature must be more or less the same throughout the
zone.
The theory section which follows will discuss what happens to the
air in rooms ventilated by diffusion, how to calculate air velocity and
displacement in the room, and also how to select and position a
directional supply-air terminal device correctly in the premises.
Ventilation by diffusion
An air stream which is injected into a room will attract, and mix together
with, large volumes of ambient air. As a result, the air stream's volume
increases while at the same time the air velocity is reduced the further
into the room it travels. The mixing of the surrounding air into the air
stream is termed 'induction'.
Occupied zone
The occupied zone is that part of the room nor-mally
occupied by people. This is usually definedas being
a space 50 cm from an outer wall with windows, 20
cm from other walls, and up to 180 cm above the
floor.
Ventilation by diffusion
The air is blown in from one or more air
streamsoutside the occupied zone.
Figure 8. Induction of the surrounding air into the air stream.
The air movements caused by the air stream very soon mix all the air
in the room thoroughly. Impurities in the air are not only attenuated but
also evenly distributed. The temperatures in the different parts of the
room are also evened out.
When dimensioning for ventilation by diffusion, the most important
consid-eration is to ensure that the air velocity in the occupied zone will
not be too high, as this will be experienced as a draught
92 | Theory
Air stream theory
The figure below shows an air stream that is formed when air is forced
into a room through an opening in the wall. The result is a free air
stream. If it also has the same temperature as the rest of the room, it
is referred to as a free isotherm stream. To begin with, this section will
only deal with streams of this type.
Distribution and shape
The air stream actually consists of several zones with different flow
condi-tions and air velocities. The area which is of most practical
interest is the main section. The centre velocity, the velocity around the
centre axis, is in inverse proportion to the distance from the diffuser
or valve, i.e. the further away from the diffuser the slower the air
velocity. The air stream is fully developed in the main section, and the
prevailing conditions here are the ones that will principally affect the
flow conditions in the room as a whole.
α = the discharge angle
The discharge angle
According to ASHRAE’s Handbook (AHRAE
[TheAmerican Society of Heating, Refrigerating
and Air-Conditioning Engineers], 1996) the
distributionof an air stream has a constant
angle of 20 - 24° (22° on average).
The shape of the vent, the geometry of the
room and also the number of vents all have
an effect on the discharge angle. Diffusers and
valves with plates or other details which spread
the air can produce a wider discharge angle,
but even after a relatively short distance from
the valve opening, these air streams have a
distribution of between 20 and 24°.
Calculation of air velocity
For a conical or radial air stream:
Figure 9. The main section of the air stream, the centre velocity vx and
discharge angle.
The shape of the diffuser or valve opening determines the shape of
the air stream. Circular or rectangular openings produce a conic (axial)
stream, and this also applies to very long and narrow openings. To
produce a complete-ly flat air stream, the opening must be more than
ten times as wide as it is high, or nearly as wide as the room so that the
walls prevent the stream widening out laterally. Radial air streams are
produced by completely circu-lar openings where the air can spread in
all directions, as is the case with a supply-air diffuser.
x = distance from the diffuser or valve (m)
vx = centre velocity at distance x (m/s)
v0 =velocity at the diffuser/valve outlet (m/s
K = the diffuser coefficient
Aeff = the diffuser/valve's effective outlet
area (m2)
q = air volume through the vent (m3/s)
For a flat air stream
x = distance from the diffuser/valve (m)
vx = velocity at distance x (m/s)
v0 = velocity at the diffuser/valve outlet (m/s)
K = the diffuser coefficient
h = the height of the slot (m)
The velocity at the cross section of the air
streamwill be
Figure 10. Different kinds of air stream.
y = vertical distance from the central axis (m
x = distance from the diffuser/valve (m)
v = velocity at distance y (m)
vx = centre velocity at distance x (m/s)
Theory | 93
Velocity profile
It is possible to calculate mathematically the air velocity in each part of
the stream. To calculate the velocity at a particular distance from the
diffuser or valve, it is necessary to know the air velocity at the diffuser/
valve outlet, the shape of the diffuser/valve and the type of air stream
produced by it. In the same way, it is also possible to see how the
velocities vary in every cross section of the stream.
Using these calculations as the starting point, velocity curves for the
entire stream can be drawn up. This enables one to determine the
areas which have the same velocity. These areas are called isovels.
By checking that the isovel corresponding to 0.2 m/s is outside the
occupied zone, one can ensure that the air velocity will not exceed this
level in the normally occupied areas.
Theoretical calculation of the diffuser
coefficient
i=impulse factor indicating impulse dissipation
at point where air is blown in (i < 1)
ε = contraction factor
Cb = turbulence constant (0.2 - 0.3 depending
on type of diffuser or valve)
Practical calculation of the diffuser
coefficient
The measurement values (vx / v0) and (x / √
Aeff )are plotted into the diagram.
Figure 11. The different isovels of an air stream.
The diffuser coefficient
The diffuser coefficient is a constant which depends on how the diffuser
or valve is shaped. It can be calculated theoretically by using the following factors: the impulse dissipation and contraction of the air stream at
the point where it is blown into the room, together with the degree of
turbulence created by the diffuser or valve.
In practice, the constant is simply determined by taking measurements
on each type of diffuser or valve. The air velocity is measured at a
minimum of eight different distances from the diffuser/valve, with at
least 30 cm between each measuring point. These values are then
plotted into a logarithmic diagram, which indicates the measurement
value for the main section of the air stream, and this in turn provides a
value for the constant.
The diffuser coefficient enables one to calculate air velocities and to
pre-dict an air stream's distribution and path. It must not be confused
with the K-factor which is used for such tasks as entering the correct air
volume from a directional supply-air terminal device or iris damper. The
K factor is described on page 378.
Using the values obtained from the main
section of the air stream, a tangent (angle
coefficient) is drawn at an angle of -1 (45°).
The formula for the velocity profile
shows that
A line should now be drawn from the
intersectionof the angle coefficient and 1 on
the y scale toproduce a value for the diffuser
coefficient K.
94 | Theory
Coanda effect
a directional supply-air terminal device is fitted close enough to a flat
surface, usually the ceiling, the air stream will cling to surface. This is
due to the fact that the ambient air will be drawn into the stream, but
close to the flat surface, where no new air can flow from above, an
underpressure forms instead, and this causes the stream to be sucked
to the surface. This is known as the Coanda effect.
The diffuser coefficient when the Coanda
effect isinfluencing the air stream:
The horizontal discharge angle also increases
to 30° when the stream is sucked towards
the ceil-ing, while the vertical angle remains
unchanged(20-24°).
Deflection
The deflection from the ceiling to the central
axis of the air stream (Y) can be calculated
using
Figure 12. The Coanda effect.
Practical experiments have shown that the distance between the
diffuser or valve's upper edge and the ceiling ('a' in figure 12) must not
be greater than 30 cm if there is to be any suction effect.The Coanda
effect can be used to make a cold air stream stick to the ceil-ing and
travel further into the room before it reaches the occupied zone.
The diffuser coefficient will be somewhat greater in conjunction with
the suction effect than for a free air stream. It is also important to know
how the diffuser or valve is mounted when using the diffuser coefficient
for dif-ferent calculations.
Non-isothermal air
The flow picture becomes more complex when the air that is blown in
is non-isothermal air, in other words warmer or colder than the ambient
air. A thermal energy, caused by differences in the air's density at
different temperatures, will force a cooler air stream downwards and a
warmer air stream upwards.
This means that two different forces affect a cooler stream that is
sticking close to the ceiling: both the Coanda effect which attempts to
adhere it to the ceiling and the thermal energy which attempts to force it
towards the floor. At a given distance from the diffuser or valve's outlet,
the thermal energy will dominate and the air stream will eventually be
dragged down from the ceiling.
The stream's deflection and point of separation can be calculated using
formulae which are based on the temperature differentials, the type of
dif-fuser or valve and the size of its outlet, together with air velocities
etc.
where
∆t0 = the temperature difference between the
air stream and the ambient air
x = distance from the diffuser/valve (m)
vx = centre velocity at distance x (m/s)
v0 = velocity at the diffuser/valve outlet (m/s)
K = the diffuser coefficient
Aeff = the diffuser or valve's effective outlet
area (m2)
Point of separationThe point where a conical
air stream leaves the ceiling (xm) will be:
and for a radical air stream will be
where
∆t0 = the temperature difference between the
airstream and the ambient air
v0 = velocity at the diffuser/valve outlet (m/s)
K = the diffuser coefficient
Aeff = the diffuser or valve's effective outlet
area (m2)
After the stream has left the ceiling, a new
path can be calculated with the aid of the
formula for deflection (above). The distance
x is then calculated as the distance from the
point of separation.
Figure 13. The air stream's point of separation (Xm) and deflection (Y).
Theory | 95
Important considerations when dimensioning air supply
It is important to select and position the directional supply-air terminal
device correctly. It is also important that the air temperature and velocity
are as required for producing acceptable conditions in the occupied zone.
Correct air velocity in the occupied zone
A specification called 'throw' is indicated for most supply-air equipment
in the manufacturer's product catalogue. 'Throw' is defined as the
distance from the diffuser or valve opening to the point in the air
stream where the centre velocity has been reduced to a particular
value, generally 0.2 m/s. A throw of this type is designated by l0.2 and
is measured in metres.
Figure 14. The 'throw' concept.
One of the first considerations when dimensioning an air supply system
is usually to avoid velocities in the occupied zone that are too high,
but as a rule it is not the air stream itself that reaches us there. In the
occupied zone we are more likely to be exposed to high velocities in the
return air stream: see the figure below.
Effective penetrationThe most common
method for selecting the correct directional
supply-air terminal device is to consider the
throw l0,2. But since the desired end velocity
in the air stream depends on both the room's
ge-ometry and the required air velocity in the
occupied zone, this can sometimes be rather
misleading. Therefore the concept of the
air stream's effective penetration has been
introduced instead.
The effective penetration is the distance to the
point where an end velocity is to be calculated.
This can be the distance along the centre of
the air stream from the diffuser itself to the
furthest point in the room where the supply
air is required. For wall-mounted diffusers, this
means that the effective penetration is the
same as the room's depth, while for ceiling
diffusers the penetration is half the room's
depth.
The velocity of the return air stream is
approximately 30% slower than the air
stream's velocity when it meets the wall. If the
maximum air velocity in the occupied zone is
to be 0.18 m/s, this means that the air stream
must have a maximum velocity of
0.26 m/s when it meets the wall.
The velocity at the effective penetration depth
of a diffuser can be calculated theoretically by
using the formula for calculating air velocity.
Figure 15. Return air stream with a wall-mounted diffuser.
It has been shown that the velocity of the return air stream is
approximately 70% of the velocity it had when it reached the wall.
This means that a diffuser or valve fitted on the rear wall, with an end
velocity of 0.2 m/s, will cause an air velocity of 0.14 m/s in the return
air stream. This is within the limits for comfort ventilation, which is
understood to mean that the velocity should not exceed 0.15 m/s in the
occupied zone.
The throw for the diffuser or valve described above is the same as the
length of the room, and in this instance is an excellent choice. A suitable
throw for wall-mounted ventilation is somewhere between 70% and
100% of the room's length.
where
vx = velocity at the effective penetration (m/s)
v0 = velocity at the diffuser outlet (m/s
K = the diffuser coefficient
Aeff = the vent's effective outlet area (m2)
xv = the effective penetration (m)
This method enables one to dimension the
ventila-tion system more precisely than is
possible when only using the throw data,
and is therefore frequent-ly used in different
diffuser selection programmes.
Throw data for isothermal air
Rear-wall diffuser and wall-mounted diffuser:
0.7 to 1.0 x room depth
Ceiling diffuser (supply air blown horizontally)
0.5 x room depth (with rectangular rooms, the
distance is calculated to the nearest wall)
96 | Theory
The penetration of the air stream
The shape of the room can affect the flow picture. If the cross section
of the air stream is more than 40% of the cross section of the room,
all induction of air in the room will stop. As a result, the air stream will
deflect and start to suck in the induction air itself. In such a situation it
does not help to increase the velocity of the supply air, as the penetration
will remain the same while the velocity of both the air stream and the
ambient air will increase.Other air streams, secondary vortices, will start
to appear further into the room where the main air stream does not
reach. However, if the room is less than three times as long as it is high,
it can be assumed that the air stream will reach all the way in.
Figure 16. Secondary vortices are formed at the furthest point in the
room, where the air stream does not reach.
Avoid obstacles
Unfortunately, it is very common for the air stream to be obstructed by
light fittings on a ceiling. If these are too close to the diffuser and hang
down too far, the air stream will deflect and descend into the occupied
zone. It is therefore necessary to know what distance (A in the diagram)
is required between an air supply device and an obstacle for the air
stream to remain unimpeded.
Figure 17. Minimum distance to an obstacle.
Distance to an obstacle (estimate)
The diagram shows the minimum distance to
the obstacle as a function of the obstacle's
height (h in figure 17) and the air stream's
temperature at the lowest point.
Theory | 97
Installing several directional supply-air terminal devices
If a single ceiling diffuser is intended to service an entire room, it should
be positioned as close to the centre of the ceiling as possible, and the
total surface should not exceed the dimensions indicated in Figure 18
below.
Dimensioning with several ceiling diffusers
A large room has to be divided into several
zones. The maximum dimension for each zone
is 1.5 x the room's length (A), as long as this
does not exceed 3 x H (see figure 18).
The appropriate throw is 0.5 x C, where C = the
distance between two diffusers, (see figure
19).
Example
A large room (see figure 19) has the following
dimensions
H=3m
A=4m
B = 16 m
Figure 18. A small room ventilated by a single ceiling diffuser.
1) How many zones should the room be
divided into?
2) What will be distance be between the
diffusers?
If the room is larger than this, it usually has to be divided into several
zones, with each zone ventilated by its own diffuser.
1) The maximum size for each zone is 1.5 x
A = 6 m, which means that the room should
be divided into three zones, each 5.33 m long.
2) If the diffuser is placed in the centre of each
zone, the distance (C) will be 5.33 m.
Figure 19. A large room ventilated by several ceiling diffusers.
A room which is ventilated by several wall-mounted diffusers must also
be divided into several zones. The number of zones is determined by
the requirement to ensure sufficient distance between the diffusers
to prevent the air streams affecting each other. If two air streams mix
together, the result will be one stream with a longer throw.
Dimensioning with several ceiling diffusers
The smallest distance between two wallmounted valves or diffusers (D in figure 20)
is 0.2 x l0.2.
The appropriate throw is between 0.7 and 1.0
x A, where A = the depth of the room.
Example
A room which is 5 m deep is ventilated from
the rear wall by means of diffusers with a
throw of 4 m.
1) What distance should there be between
two diffusers?
0.2 x l0.2 = 0.2 x 4 = 0.8 m
1) There should be 80 cm between two
diffusers
Figure 20. A large room ventilated by several ceiling diffusers.
98 | Theory
Blowing in warm air
Blowing supply air horizontally from the ceiling works excellently for
most rooms, including those with very high ceilings. If the supply air
is above ambient temperature and also used to heat the premises,
practical experi-ments have shown that this works well in rooms with
ceiling heights of no more than 3.5 metres. This assumes that the
maximum temperature difference is 10-15°C.
Figure 21. Blowing supply air horizontally from a ceiling diffuser.
In very high rooms, however, the supply air has to be jetted vertically if
it is also used for heating. If the temperature difference is no more than
10°C, the air stream should flow down to approximately 1 metre above
the floor in or-der to produce a satisfactory evenness of temperature in
the occupied zone.
Figure 22. Supply air blowing vertically from a ceiling diffuser.
Theory | 99
Blowing in cold air
When supplying air that is colder than the ambient air, it is particularly
important to make use of the Coanda effect to prevent the air stream
from falling down into the occupied zone too early. The ambient air will
then be sucked in and mixed more effectively, and the temperature of
the air stream will have a better chance to increase before it reaches
the occupied zone.
Correction of throw (estimate)
This diagram can be used to obtain an
approximate value for the throw of nonisothermal air
If the sub-ambient-temperature air is directed along the ceiling in this
way, it is also important that the air stream velocity is high enough to
ensure that there is sufficient adherence to the ceiling. If the velocity
is too low there is also a risk that the thermal energy will push the air
stream down towards the floor too early.
At a certain distance from the supply-air diffuser, the air stream will
in any case separate from the ceiling and deflect downwards. This
deflection occurs more rapidly in an air stream that is below the ambient
temperature, and therefore in such cases the throw will be shorter.
l0.2 (corrected) = k · l0.2 (isothermal air)
Figure 23. The difference between the throws of isothermal and nonisothermal air streams.
Maximum acceptable cooling effect
A rule of thumb for the
acceptablecooling effect (Qmax) is:
maximum
Supply air blown from rear wall
The air stream should have flowed through at least 60% of the room's
depth before separating from the ceiling. The maximum velocity of the
air in the occupied zone will thus be almost the same as when the air
supply is isothermal.
The method for calculating where the air stream will separate from the
ceil-ing is explained in the paragraph headed 'Non-isothermal air' on
page 454
When the supply air is below ambient temperature, the ambient air
in the room will be cooled to some extent. The acceptable degree
of cooling (known as the maximal cooling effect) depends on the air
velocity require-ments in the occupied zone, the distance from the
diffuser at which the air stream separates from the ceiling, and also on
the type of diffuser and its location.
In general a greater degree of cooling is accepted from a ceiling diffuser
than a wall-mounted diffuser. This is because the air from a ceiling
diffuserspreads in all directions, and therefore takes less time to mix
together with the ambient air and to even out the temperature.
Qmax = 20 - 40 W per m2 floor surface at ∆t 8K
Supply air blown from ceiling
Qmax = 60 - 100 W per m2 floor surface at ∆t
12K
100 | Theory
Selecting the correct supply-air terminal device
A supply-air terminal device for ventilation by diffusion can be fitted on
either the ceiling or the wall. Diffusers are often equipped with nozzles
or perforations which facilitate the admixture of ambient air in the air
stream.
Nozzle diffusers are the most flexible devices because they allow
individ-ual fitting of each nozzle. They are ideal for supplying air that
is well below ambient temperature, particularly if they are fitted in
the ceiling. The throw pattern can be altered by turning the nozzles in
different directions.
Perforated diffusers have a positive effect where the air stream
tempera-ture is significantly below that of the ambient air. They are
not as flexibleas nozzle diffusers, but by shielding off the air supply in
different direc-tions it is still possible to change the distribution pattern.
Wall-mounted grilles have a long throw. They have limited possibilities
for altering the distribution pattern, and they are not particularly suitable
for the supply of air that is below ambient air temperature.
The nozzles on the new Sinus series have
been specially designed to provide the fastest
possible mixing of supply air with ambient.
Table 3. Comparison of the different types of directional supply-air terminal device.
Index
A
O
AE .................................................................................................22
OVE.................................................................................................24
AJD .................................................................................................66
OVR.................................................................................................25
AL ...................................................................................................21
OVX.................................................................................................26
B
P
Balance-E ......................................................................................12
PER .................................................................................................82
Balance-S ......................................................................................13
PRG ................................................................................................81
BHC.................................................................................................20
R
C
RDA.................................................................................................70
CRS..................................................................................................56
RPK-R..............................................................................................71
CRSP................................................................................................57
RSK..................................................................................................76
CRS-T...............................................................................................46
S
E
SFD..................................................................................................39
EFF...................................................................................................14
Sinus-A...........................................................................................51
Elegant-AT......................................................................................38
Sinus-BR.........................................................................................35
Elegant-VE......................................................................................16
Sinus-BS.........................................................................................36
Elegant-VI.......................................................................................18
Sinus-C............................................................................................62
Elegant-VS......................................................................................17
Sinus-C/T........................................................................................63
Elegant-VT......................................................................................19
Sinus-DC.........................................................................................43
H
Sinus-DR.........................................................................................44
Hella-A............................................................................................37
Hella-A-PB.....................................................................................83
I
IGC...................................................................................................79
IGK...................................................................................................80
IKD...................................................................................................64
J
JSR...................................................................................................67
K
Sinus-F............................................................................................53
Sinus-G...........................................................................................52
SPI...................................................................................................72
SPI-F................................................................................................74
SPM.................................................................................................73
SPM-F.............................................................................................75
T
TFF...................................................................................................15
TSD..................................................................................................65
TSF..................................................................................................49
Konika.............................................................................................54
TSK..................................................................................................59
Konika-A.........................................................................................55
TSO..................................................................................................50
Kvadra............................................................................................45
TSP..................................................................................................61
L
TSR..................................................................................................60
LPS........................................................................................... 68-69
TST...................................................................................................58
N
V
NOVA-A.................................................................................... 27-28
VK....................................................................................................78
NOVA-C...........................................................................................42
VKK.................................................................................................77
NOVA-D..........................................................................................40
VTK..................................................................................................23
NOVA-E...........................................................................................41
VVK.................................................................................................83
NOVA-F.................................................................................... 33-34
VVKN...............................................................................................47
NOVA-L.................................................................................... 29-30
VVKR...............................................................................................48
NOVA-R................................................................................... 31-32
Theory................................................................................... 84-100
Systemair 06/2011 E8200
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