SELECTION, INSTALLATION,
USE AND MAINTENANCE
MANUAL
UR
HEAT RECOVERY UNIT
Sostituisce il - Replace
Remplace le n° - Ersetzt:
6783430_00 / 0406
IURUY
0411
6783430_01
SELECTION MANUAL
1. OPERATING PRINCIPLE
4
2. NOMINAL TECHNICAL DATA
4
2.1 Air flow range
2.2 Nominal performance
4
5
3. TECHNICAL CHARACTERISTICS
6
3.1 Fundamental unit components
3.1.1 Horizontal configuration
3.1.2 Vertical configuration
3.1.3 Coil module
3.2 Identification
3.3 Description of the units
3.3.1 Horizontal configuration
3.3.1.1 URxx Version
3.3.1.2 URxxW Version
3.3.1.3 URxxE Version
3.3.2 Vertical configuration
3.3.2.1 URVxx Version
3.3.2.2 URVxxW Version
3.3.2.3 URVxxE Version
3.4 Accessories
11
3.4.1 Water cold coil module (BF accessory)
3.4.2 Module with water-type post reheating cold coil
water type (MPW accessory)
3.4.3 Module with water-type post reheating cold coil
electrical type (MPX accessory)
3.4.4 G4 efficiency filters (G4 accessory)
3.4.5 Silencers (SU accessory)
3.4.6 Circular flanges (FGC accessory)
3.4.7 Gates (SE accessory)
3.5 Vent positioning
3.5.1 Horizontal configuration
3.5.2 Vertical configuration
3.6 Free-cooling operation
3.7 Overall dimensions and weights
3.7.1 Base unit
3.7.2 Accessories
4. PERFORMANCE
11
11
11
12
12
12
12
13
13
13
13
14
14
14
15
4.1 Fan characteristic curves
4.2 Recovery performance curves
4.2.1 Winter operation
4.2.2 Summer operation
4.3 Water-type heating coil yield curves
4.3.1 Indoor heating coil (URxxW version)
4.3.2 Post-heating coil (MPW, BFDW accessories)
4.4 Pressure drop curves
4.4.1 Indoor water-type heating coil (URxxW version)
4.4.2 Post-heating water-type coil (MPW accessory)
4.5 Electric heating coil yield tables (URxxE, MPX version)
4.5.1 Indoor heating coil (URxxE, URVxxE version)
4.5.2 Post-heating coil (MPX accessory)
4.6 Cooling coil yield tables
4.6.1 Water-type cooling coil (BF,MPW, MPX accessories)
4.7 Noise data
Table of contents
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6
6
6
7
8
8
8
9
9
9
9
10
10
2
15
17
18
19
20
20
21
22
23
24
25
25
25
25
25
29
INSTALLATION, USE AND MAINTENANCE MANUAL
1. CONFORMITY DECLARATION
30
2. MAIN CONDITIONS OF WARRANTY
30
3. INTRODUCTION
31
3.1 General considerations
3.2 Description of icons
3.3 General safety rules
31
31
31
4. UNIT IDENTIFICATION
32
5. TRANSPORT AND HANDLING
32
5.1
5.2
5.3
5.4
Packing
Transport
Checks at material receipt
Stocking at site
32
33
33
33
6. INSTALLATION
33
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
Sizes
Technical spaces
Inside components positioning and vent opening
Support brackets positioning
Unit lifting and positioning
Coil module and silencer assembly
Connection of ducts
Hydraulic connections
6.8.1 Condensate discharge
6.8.2 Water coil connection
6.9 Electrical wiring
6.9.1 Earthing
6.9.2 Connection to the electricity mains
6.9.3 Connection to the electric heating coils
6.10 First start-up checks
34
37
38
39
41
41
41
42
42
43
43
43
43
47
49
7. USAGE INSTRUCTIONS
49
8. UNIT MAINTENANCE
50
9. DISPOSAL
51
10. DIAGNOSIS AND TROUBLESHOOTING
52
Table of contents
3
SELECTION MANUAL
1. Operating principle
The heat recovery unit in the UR series is an essential machine for complying with the recent provisions in "smoke
prevention" regulations involving all environments where there are smokers (law no 3 dated 16 January 2003 and later
application regulation).
The UR series brings together the ventilation, filtering and recovery sections into a single unit that also permits
connection with various accessories for meeting the specific levels of comfort each environment requires.
Environmental comfort is provided by the extraction of stale air from the room and the simultaneous replacement of new
air from the outside. The air is filtered adequately by means of filters on both delivery and recovery. Energy recovery is
provided by an efficient recovery unit with aluminium plates that makes it possible to save more than 50% of the energy
in winter that would otherwise be lost through the expulsion of stale air.
The careful design of the product has made it possible to reduce the dimensions and thereby make it extremely easy to
install in suspended ceilings or in cramped areas, improving, among other things, the accessibility for the maintenance of
all the machine components, as well.
The range consisting of seven models (with rated air flow rates of 350 cu. m/h to 3300 cu. m/h), available in both vertical
and horizontal versions, is the very best currently available on the market, thus uniting the compliance with “antismoking”
law with the advantages, in terms of lower power consumption, deriving from a recovery system.
The heat recovery units in the UR series have been designed for indoor installation and may not be installed
outside.
2. Nominal technical data
2.1 AIR FLOW RANGE
UR330
UR330
Models
Models
UR210
UR210
UR150
UR150
UR100
UR100
UR75
UR75
UR55
UR55
UR35
UR35
0
Table of contents
0
250 500 750 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
250 500 750 1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [cu.m/h]
Air flow rate [cu.m/h]
4
2.2 NOMINAL PERFORMANCE
MPX
MPW
BF
URxxE;
URVxxE
URVxx ; URVxxW
All the versions
UR MODEL
(*)
(**)
(***)
Nominal air flow
Available static pressure (for URxx and URVxx) (*)
Heat recovery unit
Efficiency (**)
Recovered thermal power(**)
Recovered cooling capacity (***)
Motor ventilating assembly
Number of fans
Total maximum input power
Power supply (voltage/[phases/frequency)
Maximum input power
Fan speed variation
Electrical protection
Insulation class
Filters
Classification according to EN779
Efficiency
Inside water heating coil
Geometry
Rows
Fin pitch
Face area
Air side pressure drop
Thermal power (input air 8°C; water 80/70°C)
Output air temperature (input air 8°C; water 80/70°C)
Thermal power (input air 8°C; water 70/60°C)
Output air temperature (input air 8°C; water 70/60°C)
Thermal power (input air 8°C; water 45/40°C)
Output air temperature (input air 8°C; water 45/40°C)
Inside electric heating coil
Thermal power
Air side pressure drop
Power supply(voltage/[phases/frequency)
Stages
Absorption
Output air temperature (input air 8°C;
COIL MODULE
Water-cooling coil
Geometry
Rows
Fin pitch
Face area
Air side pressure drop
Cooling power (input air 30°C,RH 60%; water 7/12°C)
Air output conditions
Water-reheating coil
Geometry
Rows
Fin pitch
Face area
Air side pressure drop
Heating power (input air 17°C,RH 90%; water 80/70°C)
Air output temp. (input air 17°C,RH 90%; water 80/70°C)
Thermal power (input air 17°C,RH 90%; water 70/60°C)
Air output temp. (input air 17°C,RH 90%; water 70/60°C)
Thermal power (input air 17°C,RH 90%; water 45/40°C)
Air output temp. (input air 17°C,RH 90%; water 45/40°C)
Electric-reheating coil
Thermal power
Air side pressure drop
Power supply (voltage/[phases/frequency)
Stages
Absorption
Air output temperature (input air 17°C,RH 90%;
35
55
75
100
150
210
330
m³/h
Pa
350
125
550
140
750
170
1000
150
1500
120
2100
120
3300
150
%
kW
kW
52.1
1.5
0.4
55.0
2.5
0.7
54.3
3.4
1
54.4
4.6
1.3
53.1
6.7
1.9
52.7
9.3
2.6
52.0
14.3
4.3
no
kW
V/Ph/Hz
A
IP
2
2
2
2
2
2
4
0.27
0.44
0.65
1.12
1.12
2
4
230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50 230/1/50
1.1
1.7
2.8
5
5
8.6
17.2
continuous continuous continuous continuous continuous continuouscontinuous
44
44
44
55
55
55
55
B
F
F
F
F
F
F
%
G3
80
G3
80
G3
80
G3
80
G3
80
G3
80
G3
80
no
mm
m2
Pa
kW
°C
kW
°C
kW
°C
P2519
3
1.8
0.027
105
4.9
48
4.1
41.2
2.4
27.7
P2519
3
1.8
0.047
86
8.1
50
6.7
43
4
28.7
P2519
3
1.8
0.052
123
10.6
48
8.8
41.3
5.2
27.8
P2519
3
1.8
0.092
74
15.5
52
13
45
7.7
30
P2519
3
1.8
0.119
97
22.4
51
18.7
43.6
11.2
29.2
P2519
3
1.8
0.165
99
31
50
25.9
43
15.4
29
P2519
3
2.1
0.237
102
43
46
36.6
39.5
22
27
kW
Pa
V/Ph/Hz
no
A
°C
3
10
400/3/50
2
4.6
34
3
10
400/3/50
2
4.6
25
6
10
400/3/50
2
9.1
32
6
10
400/3/50
2
9.1
26
10
10
400/3/50
3
15.2
28
15
10
400/3/50
3
22.7
29
25
10
400/3/50
3
37.9
31
no
mm
m2
Pa
kW
°C/RH
P2519
4
2.5
0.075
22
3.4
15.7/91
P2519
4
2.5
0.075
52
4.9
16.8/87
P2519
4
2.5
0.113
43
6.5
16.9/88
P2519
4
2.5
0.213
23
10.2
15.1/91
P2519
4
2.5
0.213
48
13.8
16.5/87
P2519
4
2.5
0.25
66
18.5
16.9/86
P2519
4
2.5
0.325
93
28
16.9/85
no
mm
m2
Pa
kW
°C
kW
°C
kW
°C
P2519
1
2.5
0.05
6
1.9
33
1.5
30
0.8
23.4
P2519
1
1.8
0.05
17
3
33
2.4
30
1.2
23.5
P2519
1
1.8
0.068
18
4.2
33.3
3.4
30
1.7
23.8
P2519
1
2.1
0.128
8
5.9
34.5
4.8
31
2.5
24.3
P2519
1
2.1
0.128
17
7.1
31
5.7
28.2
3
22.8
P2519
1
2.1
0.15
23
9.1
30
7.4
27.3
3.8
22.3
P2519
1
2.1
0.195
32
12.7
28.3
10.2
26
5.2
21.7
kW
Pa
V/Ph/Hz
no
A
°C
1.5
10
400/3/50
2
2.3
30
2
10
400/3/50
2
3
28
3
10
400/3/50
2
4.6
29
4
10
400/3/50
2
5.3
29
6
10
400/3/50
3
9.1
29
8
10
400/3/50
3
12.1
28
13
10
400/3/50
3
19.7
29
At full motor speed with a stretch of channelling at least 1 m long for delivery and with clean filters.
Performance referring to: renewal air flow rate equal to the expulsion air flow rate; external air temperature on input -5° C, 80%
RH; room air temperature 20° C, 50% RH.
Performance referring to: renewal air flow rate equal to the expulsion air flow rate; external air temperature on input 34° C, 50%
RH; room air temperature 26° C, 50% RH.
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5
3. Technical characteristics
3.1 FUNDAMENTAL UNIT COMPONENTS
3.1.1 HORIZONTAL CONFIGURATION UR
5
4
6
7
3
4
2
8
1
1. Bearing structure with sandwich panelling fitted with pre-sheared
plates
2. Static heat recovery unit with crossover flows
3. Flat filter with undulated septum
4. Motor ventilating assembly
5. Support brackets
6. Hot water heating coil (in the URxxW version) or electric heating coil
(in the URxxE version)
7. Condensate collection tank
8. Electronic regulators
3
N.B. :
The horizontal configuration is supplied as standard with inspection from below for ceiling installation.
The units can be supplied on request with top inspection for floor installation.
3.1.2 VERTICAL CONFIGURATION URV
1
2
9
7
4
8
4
5
3
8
1. Bearing structure with sandwich panelling fitted with pre-sheared
plates
2. Static heat recovery unit with crossover flows
3. Flat filter with undulated septum
4. Motor ventilating assembly
5. Electronic regulators
6. Feet
7. Support brackets
8. Condensate collection tank
9. Hot-water heating coil (in the URVxxW version) or electric heating coil
(in the URVxxE version)
6
3.1.3 COIL MODULE
2
4
3
1
1.
2.
3.
4.
Load-bearing structure
Support brackets
Water-cooling coil (on the BF, MPW, MPX module)
Post-heating hot-water coil (on the MPW module) or electric postheating coil (on the MPX module)
5. Condensate collection tank drain.
5
Table of contents
6
3.2 IDENTIFICATION
UNIT:
UR
_
Configurations:
none: horizontal
V: vertical
xx
_
Size:
Versions:
none: basic
35
55
75
100
150
210
330
W: water-heating coil
E: electric-heating coil
ACCESSORIES:
BF
MPW
MPX
G4
SU
FGC
SE
module with water-type cold coil
module with water-type post-heating and water cold coil
module with electric-type post-heating and water cold coil
G4 efficiency filters
module with silencer septums
circular flanges
gates
ACCESSORY COMPATIBILITY CHARTS:
ACCESSORIES
Horizontal configuration
UR
BF
MPW
MPX
G4
SU
FGC
SE
Table of contents
35
BF35
MPW35
MPX35
G435
SU1
FGC1
SE1
55
BF55
MPW55
MPX55
G455
SU1
FGC1
SE1
75
BF75
MPW75
MPX75
G475
SU2
FGC1
SE2
7
100
150
210
330
BF100
BF150
BF210
BF330
MPW100 MPW150 MPW210 MPW330
MPX100 MPX150 MPX210 MPX330
G4100
G4150
G4210
G4330
SU3
SU3
SU4
SU5
FGC2
FGC2
\
\
SE3
SE3
SE4
SE5
ACCESSORIES
Vertical configuration
UR V
BF
MPW
MPX
G4
SU
FGC
SE
35
\
\
\
G435
\
FGC1
SE1
55
\
\
\
G455
\
FGC1
SE1
75
\
\
\
G475
\
FGC1
SE2
100
\
\
\
G4100
\
FGC2
SE3
150
\
\
\
G4150
\
FGC2
SE3
210
\
\
\
G4210
\
\
SE4
330
\
\
\
G4330
\
\
SE5
Example:
UR75 + MPW75 + FGC1 + SE2 : UR unit in basic version in a horizontal configuration + coil module with water-cooling
coil and hot-water type post-heating coil + circular flanges + gates.
3.3 DESCRIPTION OF THE UNIT
HORIZONTAL configuration
VERTICAL configuration
URxx
URVxx
(basic version)
(basic version)
URxxW
URVxxW
(indoor water type heating coil version)
(indoor water type heating coil version)
URxxE
URVxxE
(indoor electric type heating coil version)
(indoor electric type heating coil version)
3.3.1 HORIZONTAL CONFIGURATION
3.3.1.1 URxx VERSION
The URxx series (basic version in horizontal configuration) have the following characteristics:
Structure: the structure consists of self-bearing sandwich panels 20 mm thick
made of galvanised steel plate with insulation formed by injected
polyurethane (density 40 kg/m3). The steel sheet is fitted with pre-shearing
near the opening for the aeraulic connections (in such a way as to permit the
motorfan assemblies to be oriented in different ways), and near the exits of
the manifolds of any water-heating coil (URxxW version) for plumbing
connections.
Inspection capacity: is possible from below (ceiling installation) or above (floor
installation) by easily dismantling the panels.
Delivery and return motorfan assembly: the fans are centrifugal with blades and double extraction directly linked to
the electric motors. The electric motors are single-speed and are commanded by electronic regulators for variation
that is continuous and independent of the speed. The fans are extractor type on the recovery unit to ensure the
maximum uniformity of flow on the recovery unit itself and thus the maximum yield.
Filters: these are cell type with an undulating septum positioned before the recovery unit on airflow deliver and
return. The standard filters are class G3 type in accordance with classification UNI EN 779 with weighted efficiency
of 80%. They are 48 mm thick and are easily unthreaded for cleaning and replacement.
Heat recovery unit: this is static with crossover flows made of aluminium sheets. During winter operation, the
average efficiency is above 50% ensuring first-class energy recovery from the air expelled from the room.
Table of contents
8
Condensate collection tank: this is made of galvanised steel and positioned under the heat recovery unit and under
any water or electric coils supplied as accessories. It is easy to dismantle because of the rubber fitting lining the
threaded discharge tubing with a diameter of ½″ G UNI 338 positioned near the sidewall of the unit.
Electronic fan speed regulators: they allow the independent and continuous regulation of the fan motor speed for
optimal flow regulation. The regulators have three speed indicators in addition to the indicator showing the direction
of fan air flow. The electronic regulators are supplied as standard.
Support brackets: these allow rapid and secure fitting to the ceiling or the floor.
3.3.1.2 URxxW VERSION
These have the same constructional features and the same components as the URxx version with the addition of:
Water-type heating coils in three rows with copper pipes, aluminium
fins with P2519 geometry positioned downline from the heat recovery
unit on the fresh air flow. The manifolds are fitted with threaded female
attachments for the water to enter and exit. Sleeves with 1″ G UNI 338
threaded attachment and bleed valve are supplied as standard.
3.3.1.3 URxxE VERSION
These have the same constructional features and the same components as the URxx version with the addition of:
Electric heating coil with reinforced finned coils with two or three
stages according to the size positioned down line from the heat
recovery unit on the fresh air flow. The coil is fitted with a safety
thermostat with manual resetting.
3.3.2 VERTICAL CONFIGURATION
3.3.2.1 URVxx VERSION
The URVxx series units (basic version in vertical configuration) have the following characteristics:
Structure: the structure consists of self-bearing sandwich panels 20 mm
thick made of galvanised steel plate with insulation formed by injected
polyurethane (density 40 kg/m3). The steel sheet is fitted with pre-shearing
near the opening for the aeraulic connections (in such a way as to permit the
motorfan assemblies to be oriented in different ways), and near the exits of
the manifolds of any water heating coil (URVxxW version) for plumbing
connections. The structure has feet and two tanks for condensate collection,
one positioned near the heat recovery unity and one near the motor
extractor fan unit. Any condensate in the last tank is led directed into the
lower tank through a flexible rubber tube.
Inspection capacity : is guaranteed by easily dismantling the panels.
Delivery and return motorfan assembly: the fans are centrifugal with blades and double extraction directly linked to
the electric motors. The electric motors are single-speed and are commanded by electronic regulators for variation
that is continuous and independent of the speed. The fans are extractor type on the recovery unit to ensure the
maximum uniformity of flow on the recovery unit itself and thus the maximum yield.
Table of contents
9
Filters: these are cell type with an undulating septum positioned before the recovery unit on airflow deliver and
return. The standard filters are class G3 type in accordance with classification UNI EN 779 with weighted efficiency
of ’80%. They are 48 mm thick and are easily unthreaded for cleaning and replacement.
Heat recovery unit: this is static with crossover flows made of aluminium sheets. During winter operation, the
average efficiency is above 50% ensuring first-class energy recovery from the air expelled from the room.
Condensate collection tanks: these are made of galvanised steel and are positioned under the heat recovery unit
and under the motor extractor fan assembly . The condensate collection tank that leads to the outside if fitted with a
½″ G UNI 338 threaded discharge.
Electronic fan speed regulators: by these it is possible to regulate the fan motor speed continuously and
independently for optimal flow rate calibration. The regulators have three speed indicators in addition to the indicator
showing the direction of fan air flow. The electronic regulators are supplied as standard.
Support brackets: these permit rapid and secure fixing of the wall unit.
Feet: four 60 mm high feet are situated at the lower corners of the structure for supporting the floor unit.
3.3.2.2 URVxxW VERSION
These have the same constructional features and the same components as the URVxx version with the addition of:
Water-type heating coils in three rows with copper pipes, aluminium
fins with P2519 geometry positioned downline from the heat recovery
unit on the fresh air flow. The manifolds are fitted with threaded female
attachments for the entry and exit of the water, sleeves with 1″ G UNI
338 threaded attachment and bleed valve. Both of these components
come as standard.
3.3.2.3 URVxxE VERSION
These have the same constructional features and the same components as the URVxx version with the addition of:
Electric heating coil with reinforced finned coils with two or three
stages according to the size positioned down line from the heat
recovery unit on the fresh air flow. The coil is fitted with a safety
thermostat with manual resetting.
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10
3.4 ACCESSORIES
HORIZONTAL configuration
VERTICAL configuration
BF
/
(module with water-type cold coil)
MPW
(module with water type post-heating and water cold coil)
MPX
/
/
(module with cold coil and electric reheating)
G4
G4
(optional G4 efficiency filters)
(optional G4 efficiency filters)
SU
/
(module with silencer septums)
FGC
FCG
(circular flanges)
(circular flanges)
SE
SE
(gates)
(gates)
3.4.1 WATER COLD COIL MODULE (BF ACCESSORY)
Only available in the horizontal configuration.
This is an outside module that can be installed downline from the motor fan assembly on the fresh air flow, fitted with:
Water-cooling coil on four rows with copper pipes and aluminium fins with
P2519 geometry and a tank for collecting condensate with threaded
diameter ½″ G UNI 338 drainage pipe.
The manifolds are fitted with threaded female attachments for the water to
enter and exit. Sleeves with 1″ G UNI 338 threaded attachment and bleed
valve are supplied as standard.
3.4.2 MODULE WITH WATER TYPE COLD COIL AND WATER TYPE reheating (MPW ACCESSORY)
Only available in the horizontal configuration.
This is an outside module that can be installed downline from the motor fan assembly on the fresh air flow, fitted with:
Water-cooling coil with four rows with copper piping and aluminium fins with
P2519 geometry. The manifolds are fitted with threaded female attachments
for the water to enter and exit. Sleeves with 1″ G UNI 338 threaded
attachment and bleed valve are supplied as standard.
Water-reheating coil with two rows with copper piping and aluminium fins with
P2519 geometry. The manifolds are fitted with threaded female attachments
for the water to enter and exit. Sleeves with 1″ G UNI 338 threaded
attachment and bleed valve are supplied as standard.
Condensate collection tank in galvanised steel with threaded drainage pipe
with diameter ½″ G UNI 338.
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11
3.4.3 MODULE WITH WATER TYPE COLD COIL AND ELECTRIC reheating (MPX ACCESSORY)
Only available in the horizontal configuration.
This is an outside module that can be installed downline from the motor fan assembly on the fresh air flow, fitted with:
Water-cooling coil with four rows with copper piping and aluminium fins with
P2519 geometry. The manifolds are fitted with threaded female attachments
for the water to enter and exit. Sleeves with 1″ G UNI 338 threaded
attachment and bleed valve are supplied as standard.
Electric reheating coil with reinforced finned coils with two or three stages
according to the size positioned downline from the heat recovery unit on the
fresh air flow fitted with a safety thermostat that can be reset manually.
Condensate collection tank in galvanised steel with threaded drainage pipe
with diameter ½″ G UNI 338.
with diameter ½″ G UNI 338.
3.4.7 G4 EFFICIENCY FILTERS (G4 ACCESSORY)
The units can be fitted with two cell-type filters with undulated septum in class G4 according to the UNI EN 779
classification (weighted efficiency of 90%) that can be positioned as a replacement of those in class G3. The filtering cell
is 48 mm thick.
3.4.8 SILENCERS (SU ACCESSORY)
An accessory only available for the horizontal configuration.
There are two modules that can be installed on the side turned towards the
room fitted with silencer septums made of rock wool panels with surfaces in
contact with the air protected by polyester film containing two or three
stretched and micro-perforated galvanised zinc plates.
3.4.9 CIRCULAR FLANGES (FGC ACCESSORY)
The accessory is not available for the UR210 and UR330 sizes and is
supplied as one unit.
The accessory consists of a flange to couple with the rectangular mouths of
the unit in such a way as to consent the use of circular section channels .
3.4.10 GATES (SE ACCESSORY)
They can be used with the antifreeze function or to provide the bypass for the
free-cooling function. The consist of a galvanised sheet frame and aluminium
fins with nylon wheel mechanism. The gate pin can be servo-commanded.
The accessory comes as two units.
Table of contents
12
3.5 VENT POSITIONING
UR without accessory regulation system:
The units come with all the vents closed and with the inside components positioned as shown in figure 1. below.
At the moment of installation the arrangement of the internal components can be varied in accordance with the specific
system requirements (position 2, 3, 4 for the horizontal configuration and position 2 for the vertical configuration)
following the indications in the use, maintenance and installation manual.
UR with accessory regulation system:
The units come with all the vents closed. The inside items (fans, any coils, pressure switches, probes, etc.) are
positioned on site as specified in the order.
3.5.1 HORIZONTAL CONFIGURATION
Mandata aria
ambiente
Room air
delivery
Espulsion
Expulsion
ofe
aria viziat
stale
air a
Mandata
Room
airaria
ambiente
delivery
Espulsione
aria viziata
Expulsionof
staleair
2
1
Aspirazione
Fresh
ariaair
di rinnovo
extraction
R
ipresa air
Room
ar
ia ambiente
return
Ripresa
Room
ariaair
ambiente
return
Room aria
air
Mandata
delivery
am
biente
Ripresa
Room
air
aria ambiente
return
Aspirazion
Fresh
air e
aria di rinnovo
extraction
3
Aspirazion
e
Fresh air
aria di rinnovo
extraction
Espulsion
e
Expulsion
o
aria viziatastale ai
4
Aspirazi
Fresh
air one
aria di rinnovo
extraction
Ripresaair
Room
aria ambiente
return
Espulsione
Expulsionof
aria viziata
staleair
Man
data aria
Room
air
amdelivery
biente
3.5.2 VERTICAL CONFIGURATION
Expulsion
ofe
Espulsion
air a
astale
ria viziat
Man
dataair
aria
Room
am
biente
delivery
Room
air aria
Mandata
delivery
ambiente
Expulsion
Esp
ulsione of
air a
arstale
ia viziat
1
2
Aspirazione
Fresh air
aria
di rinnovo
extraction
Ripresa
Room air
arreturn
ia ambiente
Fresh air
Ripresa
Room
air
aria ambiente
return
Asp
irazione
extraction
aria di rinnovo
3.6 FREE-COOLING OPERATION
ESTERNO
OUTDOOR
INTERNO
INDOOR
B
A
Free-cooling function requires the expelled-air flow from the
room does not affect the heat recovery unit going directly to the
outside through a channel attached to the vent (A). The fresh
air flow thus passes through the filter and the heat recovery unit
without being touched by the heat exchangers. To use the freecooling function it is therefore necessary to have a channel to
couple to the opening (A) and then position two gates with
opposite action (B and C). When the external air temperature is
near the ideal temperature for the room, the gate (C) is closed
while gate (B) is open.
C
Table of contents
13
3.7 APPROXIMATE DIMENSIONS AND WEIGHTS
3.7.1 BASIC UNIT
Horizontal and vertical configuration
MODEL
Dimensions
A
B
C
Weights
URxx; URVxx
URxxW ; URVxxW
URxxE; URVxxE
C
UR
A
B
35
55
75
100
150
210
330
mm
mm
mm
1090
900
300
1090
900
300
1190
1000
330
1500
1250
390
1500
1250
390
1750
1400
390
2500
1750
390
kg
kg
kg
61
66
68
65
70
73
74
79
84
115
121
126
140
146
152
180
188
195
330
340
350
35
55
75
100
150
210
330
mm
mm
mm
800
460
300
800
460
300
850
510
330
970
635
390
970
635
390
970
710
390
970
860
390
kg
kg
kg
40
43
45
40
43
45
50
54
57
60
65
68
60
65
68
70
76
79
75
85
90
35
55
75
100
150
210
330
mm
mm
mm
800
380
300
800
380
300
800
430
330
800
550
390
800
550
390
800
620
390
800
820
390
kg
25
25
30
36
36
45
60
60
B
A
C
3.7.2 ACCESSORIES
Coil module
C
UR MODEL
Dimensions
A
B
C
Weights
BF
MPW
MPX
A
B
Silencers (SU)
C
UR MODEL
Dimensions
A
B
C
Weights
SU
A
Gates (SE)
A
20
70
B
mm
20
B
20
20
B
Circular flanges (FGC)
Table of contents
14
200
200
250
250
250
250
250
B
A
UR MODEL
Dimensions
A
B
mm
mm
35
55
75
100
150
210
330
290
250
290
250
290
250
320
300
320
300
\
\
\
\
60
A
4. Performance
4.1 FAN CHARACTERISTIC CURVES
The characteristic curves of the fans are shown in the following diagrams, for each base unit size in the horizontal and
vertical configurations. The curves refer to the maximum and minimum fan speed. For intermediate speeds the curves
move in the range between the two curves shown. The static pressure available is read on the ordinate, for a determined
air flow expressed in m³/h providing that a delivery channel equal to at least one meter is installed downline from the fan.
The pressure drops for each accessory to be subtracted from the value of the useful static pressure read in function of
the flow rate are shown in the table next to each graph. The static pressures are net of the pressure drops of the heat
recovery unit and the clean filters.
UR35 ; URV35
Useful static pressure [Pa]
250
200
Max. speed
150
100
Additional pressure drops [Pa]
Flow rate [m³/h] 200 250 300 350 400 450
UR/URV 35 E
10 10 10 10 10 10
UR/UR 35 W
37 56 79 105 134 167
ACCESSORIES
BF 35
8
12 17 22 29 36
MPW 35
10 15 22 28 37 45
MPX 35
18 22 27 32 39 46
G4 35
0
0
0
0
0
0
SU 1
50 50 50 50 50 50
Min.speed
50
0
200
250
300
350
400
450
500
Air flow rate [m³/h]
Useful static pressure [Pa]
UR55 ; URV55
Additional pressure drops [Pa]
Flow rate [m³/h] 300 350 400 450 500 550
UR/URV 55 E 10 10 10 10 10 10
UR/URV 55 W 28 37 48 59 72 86
ACCESSORIES
BF 55
17 22 29 36 43 52
MPW 55
23 30 39 48 58 69
MPX 55
27 32 39 46 53 62
G4 55
0
0
0
0
0
0
SU 1
50 50 50 50 50 50
350
300
250
Max. speed
200
150
Min. speed
100
50
0
300
350
400
450
500
550
600
650
700
Air flow rate [m³/h]
Table of contents
15
600 650
10 10
101 117
61
81
71
0
50
70
93
80
0
50
Useful static pressure [Pa]
UR 75 ; URV 75
Flow rate [m³/h]
UR/URV 75 E
UR/URV 75 W
400
350
300
250
BF 75
MPW 75
MPX 75
G4 75
SU 2
Max. speed
200
150
Min. speed
100
50
Additional pressure drops [Pa]
500 550 600 650 700 750 800 850 900
10 10 10 10 10 10 10 10 10
58 69 81 94 108 123 138 155 172
ACCESSORIES
20 24 29 33 38 43 49 54 61
29 34 41 47 54 61 69 76 85
30 34 39 43 48 53 59 64 71
0
0
0
0
0
0
0
0
0
50 50 50 50 50 50 50 50 50
0
500 550 600 650 700 750 800 850 900 950
Air flow rate [m³/h]
UR 100 ; URV 100
Useful static pressure [Pa]
250
Flow rate [m³/h]
UR/URV 100 E
UR/URV 100 W
200
Max. speed
BF 100
MPW 100
MPX 100
G4 100
SU 3
150
100
Additional pressure drops [Pa]
700 800 900 1000 1100
10
10
10
10
10
38
49
61
74
89
ACCESSORIES
12
15
19
23
27
17
21
26
31
37
22
25
29
33
37
0
0
0
0
0
50
50
50
50
50
1200 1300 1400
10
10
10
104 121 139
32
44
42
0
50
37
50
47
0
50
Min. speed
50
0
700
800
900 1000 1100 1200 1300 1400 1500
Air flow rate [m³/h]
UR 150 ; URV 150
Useful static pressure [Pa]
250
Additional pressure drops [Pa]
Flow rate [m³/h] 900 1100 1300 1500 1700 1900
UR/URV 150 E
10
10
10
10
10
10
UR/URV 150 W
38
55
74
97 122 150
ACCESSORIES
BF 150
19
27
37
48
61
74
MPW 150
26
37
50
65
82 100
MPX 150
29
37
47
58
71
84
G4 150
0
0
0
0
0
0
SU 3
50
50
50
50
50
50
200
Max. speed
150
100
Min. speed
50
0
900
1100
1300
1500
1700
1900
Air flow rate [m³/h]
Table of contents
16
42
57
52
0
50
UR 210 ; URV 210
Useful static pressure [Pa]
300
250
200
Max. speed
Additional pressure drops [Pa]
Flow rate [m³/h] 1200 1400 1600 1800 2000 2200 2400
UR/URV 210 E
10
10
10
10
10
10
10
UR/URV 210 W
35
47
60
74
90 108 126
ACCESSORIES
BF 210
24
31
40
50
61
72
85
MPW 210
33
42
54
68
82
97 114
MPX 210
34
41
50
60
71
82
95
G4 210
0
0
0
0
0
0
0
SU 4
50
50
50
50
50
50
50
150
100
Min. speed
50
0
1200 1400 1600 1800 2000 2200 2400 2600
Air flow rate [m³/h]
UR 330 ; URV 330
Additional pressure drops [Pa]
Flow rate [m³/h] 1800 2200 2600 3000 3400
UR/URV 330 E
10
10
10
10
10
UR/URV 330 W 33
48
66
86 108
ACCESSORIES
BF 330
31
44
61
79
99
MPW 330
42
60
82 106 133
MPX 330
41
54
71
89 109
G4 330
0
0
0
0
0
SU 5
50
50
50
50
50
Useful static pressure [Pa]
350
300
250
Max. speed
200
150
100
Min. speed
3800
10
133
122
164
132
0
50
50
0
1800
2200
2600
3000
3400
3800
4200
Air flow rate [m³/h]
4.2 HEAT RECOVERY UNIT PERFORMANCE CURVES
The following diagrams represent the heat recovery units' performance (efficiency, recovered power) in function of the air
flow for each unit size.
The performance refers to the following conditions:
•
Winter functioning: fresh air flow rate equal to the expulsion air flow rate; external air temperature on input - 5° C,
80% RH; room air temperature 20° C, 50% RH.
•
Summer operation: fresh air flow rate equal to the expulsion air flow rate; external air temperature 34° C, 50% RH;
room air temperature 26° C, 50% RH.
For conditions other than the ones shown above, the values read in the diagram must be multiplied by the respective
corrective coefficient in the following tables.
The fresh air temperature on output from the heat recovery unit (Trh) is indicated in the last column of the table in the
different external air temperature conditions.
Table of contents
17
4.2.1 WINTER OPERATION
Efficiency [%]
58
57
UR 100
UR 55
UR 330
Efficiency [%]
56
UR 150
55
54
53
UR 75
52
UR 210
UR 35
51
50
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
Recovered power [kW]
18
16
14
12
10
8
6
4
2
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
T external air [°C]
K efficiency
K recovered power
Trh [°C]
-15
1,05
1,47
5
-10
1,03
1,23
6
Table of contents
-5
1
1
8
0
0,93
0,75
10
5
10
0,90
0,89
0,52
0,36
12
14
18
4.2.2 SUMMER OPERATION
Efficiency [%]
54
53
UR 210
Efficiency [%]
52
UR 330
51
UR 55
50
UR 100
49
UR 35
48
47
UR 150
UR 75
46
45
44
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
Recovered power [kW]
6
Power recovered [kW]
5
4
3
2
1
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate[m³/h]
T external air [°C]
K Efficienza
K Potenza recuperata
Trh [°C]
28
1
0,25
27
30
1
0,50
28
32
1
0,75
29
34
1
1
30
4.3. WATER TYPE HEATING coil YIELD CURVES
4.3.1 INDOOR HEATING coil (URXXW VERSION)
The heat power exchanged by the heating coils downline from the heat recovery units can be read for each unit size and
in function of the air flow in the following diagrams. The diagrams refer to:
•
air temperature on input to the coil (that coincides with the air temperature leaving the heat recovery unit) equal to 8°C;
Table of contents
19
•
water temperature entering/leaving the coil equal to 45/40°C, 70/60°C and 80/70°C respectively.
For input air conditions of coils other than those shown above (6°C, 10°C, 12°C), the value read on the ordinate in the
diagram must be multiplied by the corrective coefficient (K) shown in the tables below.
Thermal power [kW] (air 8°C; water 45/40°C)
30
25
UR 330
20
15
UR 210
UR 150
10
UR 100
UR 55
5
UR 75
UR 35
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
T air in [°C]
K
6
1,07
10
0,93
12
0,87
Thermal power [kW] (air 8°C; water 70/60°C)
45
40
35
UR 330
30
25
UR 210
20
UR 150
15
UR 100
10
UR 55
UR 75
5
UR 35
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
T air in [°C]
K
Table of contents
6
1,04
20
10
0,96
12
0,92
Thermal power [kW] (air 8°C; water 80/70°C)
55
50
45
UR 330
40
35
30
UR 210
25
UR 150
20
UR 100
15
UR 55
10
5
UR 75
UR 35
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
T air in [°C]
K
6
1,03
10
0,96
4.3.2 POST-HEATING coil (MPW ACCESSORY)
The heat power exchanged by the heating coils downline from the cold coil in the "coil module" can be read for each unit
size and in function of the air flow, in the following diagrams.
The diagrams refer to:
•
air temperature on input to the coil (that coincides with the air temperature leaving the cold coil) equal to 17°C;
•
water temperature entering/leaving the coil equal to 45/40°C, 70/60°C and 80/70°C respectively.
Thermal power [kW] (air 17°C; water 45/40°C)
6
UR 330
5
4
UR 210
3
UR 100
2
UR 150
UR 75
UR 55
1
UR 35
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
Table of contents
21
Thermal power [kW] (air 17°C; water 70/60°C)
12
11
10
9
8
7
6
5
4
3
2
1
0
UR 330
UR 210
UR 150
UR 100
UR 35
UR 55
UR 35
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
Thermal power [kW] (air 17°C; water 80/70°C)
16
14
UR 330
12
10
UR 210
8
6
UR 150
UR 100
4
UR 75
UR 55
2
UR 35
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
4.4 PRESSURE DROP CURVES
The pressure drops on the water side of the heating coil situated immediately after the heat recovery unit and the
reheating coil in the "coil module" are shown in the following diagrams.
The pressure drops on the air side can be read in function of the air flow rate and the size, on the ordinate axis.
As far as the pressure loss on the water side is concerned the following procedure must be adopted:
•
in diagram 1, when the heating capacity required by the coil and the thermal head of the water is known, the water
supply flow rate is found on the ordinate axis;
•
in diagram 2, when the water flow rate taken from diagram 1 is known, the pressure drops of the coil (including the
manifold pressure drops) are read on the ordinate axis. The curves proposed in diagram 2 refer to the 80/70°C
supply water: to get the water side pressure drops for other supply temperatures, the values read on the ordinate in
diagram 2 must be multiplied the coefficients present in the table.
Table of contents
22
4.4.1 INSIDE WATER TYPE HEATING COIL (URxxW VERSION)
Air side pressure drop [Pa]
180
UR 150
UR 75
160
UR 210
UR 100
UR 35
UR 330
140
UR 55
120
100
80
60
40
20
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
Water side pressure drop
Diagram 1
Water flow rate [cu.m/h
4,5
4
3,5
3
2,5
2
1,5
1
0,5
0
Water 70/60; 80/70
Water 45/40
0
5
10
15
20
25
30
35
40
45
50
Therm al pow er [kW]
Water side pressure drops [kPa]
Diagram 2 (Water 80/70)
50
40
UR 150
30
UR 100
UR 75
20
UR 330
UR 210
UR 35
10
UR 55
0
0
0,5
1
1,5
2
2,5
3
Water flow rate [m³/h]
T water in / T water out [°C]
45/40
70/60
80/70
Table of contents
23
K
1,15
0,8
1,0
3,5
4
4,5
4.4.2 WATER TYPE REHEATING COIL (MPW ACCESSORY)
Air side pressure drop [Pa]
50
40
UR 210
UR 330
30
UR 75
UR 150
UR 55
20
UR 100
10
UR 35
0
0
250
500
750
1000 1250 1500 1750 2000 2250 2500 2750 3000 3250 3500 3750 4000 4250
Air flow rate [m³/h]
Water side pressure drop [kPa]
Diagram 1
1,5
Water 70/60; 80/70
1
Water 45/40
0,5
0
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Thermal power [kW]
Water side pressure drops [kPa]
Diagram 2 (Water 80/70)
35
30
25
UR 210
UR 75
20
UR 330
UR 150
15
UR 55
10
UR 100
UR 35
5
0
0
0,25
0,5
0,75
Water flow rate [m³/h]
T water in / T water out [°C]
45/40
70/60
80/70
Table of contents
24
K
0,85
0,75
1
1
1,25
4.5 ELECTRIC COILS YIELD TABLES
4.5.1 INSIDE HEATING COIL (URxxE, URVxxE VERSION)
UR model
Thermal power
Air side pressure drop (*)
Power supply
Stages
Absorption
Thermal head (*)
kW
Pa
V/Ph/Hz
n°
A
°C
35
55
75
100
150
210
330
3
10
400/3/50
2
4.6
26
3
10
400/3/50
2
4.6
17
6
10
400/3/50
2
9.1
24
6
10
400/3/50
2
9.1
18
10
10
400/3/50
3
15.2
20
15
10
400/3/50
3
22.7
21
25
10
400/3/50
3
37.9
23
35
55
75
100
150
210
330
1.5
10
400/3/50
2
2.3
13
2
10
400/3/50
2
3
11
3
10
400/3/50
2
4.6
12
4
10
400/3/50
2
5.3
12
6
10
400/3/50
3
9.1
12
8
10
400/3/50
3
12.1
11
13
10
400/3/50
3
19.7
12
(*) At nominal air flow
4.5.2 REHEATING COIL (MPX VERSION)
UR MODEL
Thermal power
Air side pressure drop (*)
Power supply
Stages
Absorption
Thermal head (*)
kW
Pa
V/Ph/Hz
no
A
°C
(*) At nominal air flow
4.6 COOLING COIL YIELD TABLES
4.6.1 COOLING WATER COIL (BF, MPW, MPX accessory)
It is possible to read the operating data for the water cooling coil in the "coil module" in the following table for each unit
size and dependent on the air flow rate.
Key
Pa:
Tia:
Ur :
Toa:
Qtot:
Qsen:
Pw:
DPw:
DPa:
Pa [m 3/h]
200
250
300
350
400
450
Tia [°C]
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
Table of contents
air flow rate
Input air temperature
Relative humidity
air output temperature
total refrigerating capacity
sensitive refrigerating capacity
feed water flow rate
water side pressure drops (including the coil manifold pressure drops)
air side pressure drop
Ur [%]
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Tua [°C]
13,4
13,6
13,8
14,2
14,2
14,4
14,6
14,7
14,8
15.0
15,1
15,3
15,3
15,5
15,6
15,7
15,7
15,9
16.0
16,1
16.0
16,2
16,3
16,4
UR 35 [Water 7/12°C]
Ur [%]
Qtot [kW]
95
1,63
95
1.80
95
1,98
95
2,12
93
1.90
93
2,11
93
2,33
93
2,58
92
2,15
92
2,41
92
2,68
92
2,97
91
2.40
91
2.70
91
3,02
91
3,37
90
2,64
90
2,98
90
3,37
90
3,76
89
2,88
89
3,28
89
3,71
89
4,16
25
Qsen [kW]
0,89
0,94
0,99
1,03
1,05
1,11
1,18
1,25
1.20
1,28
1,36
1,44
1,35
1,44
1,53
1,63
1,49
1,59
1.70
1,81
1,63
1,75
1,87
2.00
Pw [l/h]
280
309
340
365
326
363
402
443
370
414
461
511
413
465
520
579
455
512
579
647
496
564
638
715
DPw [kPa]
5,7
5,7
7,6
9,5
7,6
9,5
9,5
11,4
9,5
11,4
13,3
15,2
11,4
13,3
17,1
19
13,3
15,2
19
24,7
15,2
19
22,8
28,5
DPa [Pa]
8
8
8
8
12
12
12
12
17
17
17
17
22
22
22
22
29
29
29
29
36
36
36
36
UR 55 [Water 7/12°C]
Pa [m3/h]
300
350
400
450
500
550
600
650
Tia [°C]
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
UR [%]
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Tua [°C]
14,8
15,0
15,1
15,3
15,3
15,5
15,6
15,7
15,7
15,9
16,0
16,1
16,0
16,2
16,3
16,4
16,3
16,4
16,5
16,6
16,5
16,6
16,7
16,8
16,7
16,8
16,9
17,0
16,9
17,0
17,1
17,2
Tia [°C]
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
UR [%]
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Tua [°C]
15,6
15,8
15,9
16,1
15,9
16,1
16,3
16,4
16,1
16,3
16,5
16,6
16,4
16,6
16,7
16,8
16,6
16,8
16,9
17,0
16,8
16,9
17,1
17,2
16,9
17,1
17,2
17,3
17,1
17,2
17,3
17,4
17,2
17,4
17,5
17,6
UR [%]
92
92
92
92
91
91
91
91
90
90
90
90
89
89
89
89
89
88
88
88
88
88
87
87
87
87
87
87
86
86
86
86
Qtot [kW]
2,15
2,41
2,68
2,97
2,40
2,70
3,02
3,37
2,64
2,98
3,37
3,76
2,88
3,28
3,71
4,16
3,13
3,57
4,05
4,55
3,37
3,86
4,39
4,94
3,61
4,16
4,73
5,33
3,86
4,45
5,08
5,71
Qsen [kW]
1,20
1,28
1,36
1,44
1,35
1,44
1,53
1,63
1,49
1,59
1,70
1,81
1,63
1,75
1,87
2,00
1,76
1,90
2,04
2,18
1,90
2,05
2,20
2,35
2,03
2,20
2,36
2,53
2,16
2,34
2,53
2,70
Pw [l/h]
370
414
461
511
413
465
520
579
455
512
579
647
496
564
638
715
538
614
696
783
579
665
755
850
620
715
814
916
664
766
873
982
DPw [kPa]
9,5
11,4
13,3
15,2
11,4
13,3
17,1
19
13,3
15,2
19
24,7
15,2
19
22,8
28,5
17,1
20,9
26,6
32,3
19
24,7
30,4
38
22,8
28,5
36,1
43,7
24,7
32,3
39,9
49,4
DPa [Pa]
17
17
17
17
22
22
22
22
29
29
29
29
36
36
36
36
43
43
43
43
52
52
52
52
61
61
61
61
70
70
70
70
Qsen [kW]
1,88
2
2,13
2,26
2,01
2,15
2,28
2,44
2,15
2,29
2,45
2,62
2,27
2,44
2,61
2,79
2,4
2,58
2,77
2,96
2,53
2,72
2,92
3,13
2,65
2,86
3,08
3,3
2,77
3
3,23
3,48
2,9
3,14
3,39
3,64
Pw [l/h]
567
638
714
795
605
682
762
858
641
727
820
920
678
771
873
983
714
816
927
1046
750
860
980
1109
786
904
1034
1172
820
950
1089
1236
859
996
1144
1299
DPw [kPa]
5,7
7,6
9,5
11,4
7,6
9,5
11,4
13,3
7,6
9,5
11,4
15,2
9,5
11,4
13,3
17,1
9,5
11,4
15,2
19
9,5
13,3
17,1
20,9
11,4
15,2
19
22,8
11,4
15,2
19
24,7
13,3
17,1
20,9
26,6
DPa [Pa]
20
20
20
20
24
24
24
24
29
29
29
29
33
33
33
33
38
38
38
38
43
43
43
43
49
49
49
49
54
54
54
54
61
61
61
61
UR 75 [Water 7/12°C]
Pa [m3/h]
500
550
600
650
700
750
800
850
900
Table of contents
UR [%]
92
92
91
91
91
91
91
91
90
90
90
90
90
90
90
89
89
89
89
89
89
89
88
88
88
88
88
88
88
88
87
87
87
87
87
87
Qtot [kW]
3,3
3,71
4,15
4,62
3,51
3,97
4,43
4,99
3,73
4,23
4,77
5,35
3,94
4,48
5,08
5,72
4,15
4,74
5,39
6,08
4,36
5
5,7
6,45
4,57
5,25
6,01
6,82
4,77
5,53
6,33
7,18
4,99
5,79
6,65
7,55
26
UR 100 [Water 7/12°C]
Pa [m3/h]
700
800
900
1000
1100
1200
1300
1400
Tia [°C]
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
UR [%]
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Tua [°C]
14,1
14,2
14,2
14,3
14,5
14,5
14,6
14,6
14,8
14,8
14,8
14,8
15,0
15,0
15,1
15,1
15,2
15,2
15,3
15,3
15,4
15,4
15,4
15,5
15,5
15,5
15,6
15,6
15,7
15,7
15,7
15,8
UR [%]
93
93
93
93
93
92
92
92
92
92
92
91
91
91
91
91
90
90
90
90
90
89
89
89
89
89
89
88
88
88
88
88
Qtot [kW]
5,35
6,02
6,72
7,46
5,94
6,71
7,53
8,38
6,53
7,41
8,32
9,29
7,12
8,11
9,14
10,2
7,72
8,81
9,94
11,11
8,32
9,52
10,75
12
8,93
10,22
11,54
12,88
9,53
10,92
12,32
13,74
Qsen [kW]
2,96
3,16
3,37
3,59
3,29
3,53
3,77
4,02
3,62
3,89
4,16
4,44
3,94
4,25
4,55
4,86
4,26
4,6
4,94
5,27
4,59
4,95
5,32
5,68
4,9
5,3
5,69
6,07
5,22
5,65
6,06
6,46
Pw [l/h]
921
1035
1156
1283
1022
1154
1294
1441
1123
1275
1431
1598
1225
1395
1572
1755
1328
1516
1711
1911
1431
1637
1849
2064
1535
1758
1985
2215
1639
1879
2120
2365
DPw [kPa]
9,5
11,4
13,3
17,1
11,4
13,3
17,1
20,9
13,3
17,1
20,9
24,7
15,2
19
24,7
28,5
17,1
22,8
28,5
34,2
20,9
26,6
32,3
38
22,8
28,5
36,1
43,7
26,6
32,3
39,9
49,4
DPa [Pa]
12
12
12
12
15
15
15
15
19
19
19
19
23
23
23
23
27
27
27
27
32
32
32
32
37
37
37
37
42
42
42
42
UR 150 [Water 7/12°C]
Pa [m3/h]
900
1100
1300
1500
1700
1900
Tia [°C]
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
Table of contents
UR [%]
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Tua [°C]
15,2
15,4
15,4
15,4
15,8
15,8
15,9
15,9
16,1
16,2
16,2
16,2
16,4
16,4
16,5
16,5
16,6
16,7
16,7
16,8
16,8
16,8
16,9
17,1
UR [%]
92
92
92
92
90
90
90
90
89
89
89
89
88
88
88
87
87
87
87
86
86
86
86
86
Qtot [kW]
6,15
6,98
7,87
8,81
7,18
8,22
9,33
10,5
8,2
9,48
10,81
12,18
9,29
10,76
12,29
13,84
10,37
12,05
13,75
15,47
11,48
13,33
15,19
16,94
27
Qsen [kW]
3,48
3,73
3,99
4,26
4,07
4,39
4,72
5,05
4,64
5,03
5,43
5,82
5,23
5,68
6,13
6,57
5,8
6,32
6,82
7,3
6,38
6,95
7,49
7,97
Pw [l/h]
1059
1201
1353
1515
1235
1414
1605
1806
1411
1630
1859
2096
1597
1851
2114
2381
1784
2073
2366
2661
1974
2294
2613
2914
DPw [kPa]
7,6
9,5
13,3
15,2
11,4
13,3
17,1
20,9
13,3
17,1
22,8
26,6
17,1
22,8
28,5
34,2
20,9
26,6
34,2
41,8
24,7
32,3
39,9
49,4
DPa [Pa]
19
19
19
19
27
27
27
27
37
37
37
37
48
48
48
48
61
61
61
61
74
74
74
74
UR 210 [Water 7/12°C]
Pa [m3/h]
1200
1400
1600
1800
2000
2200
2400
Tia [°C]
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
UR [%]
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Tua [°C]
15,9
16,0
16,1
16,1
16,3
16,4
16,4
16,4
16,6
16,6
16,7
16,7
16,8
16,8
16,9
16,9
17,0
17,0
17,0
17,1
17,1
17,1
17,2
17,3
17,2
17,3
17,3
17,5
UR [%]
91
91
91
91
90
90
90
90
89
89
89
89
88
88
88
87
87
87
87
87
86
86
86
86
86
85
85
85
Qtot [kW]
7,58
8,68
9,88
11,15
8,5
9,86
11,28
12,78
9,5
11,05
12,71
14,43
10,49
12,28
14,15
16,06
11,51
13,53
15,59
17,67
12,56
14,78
17,01
19,25
13,63
16,02
18,42
20,74
Qsen [kW]
4,37
4,71
5,06
5,43
4,92
5,33
5,76
6,19
5,48
5,96
6,45
6,94
6,03
6,58
7,14
7,68
6,59
7,2
7,81
8,4
7,14
7,82
8,48
9,11
7,7
8,43
9,13
9,78
Pw [l/h]
1304
1493
1699
1918
1462
1695
1941
2199
1633
1901
2186
2482
1804
2113
2434
2763
1981
2327
2681
3039
2161
2542
2927
3311
2344
2756
3169
3568
DPw [kPa]
7,6
9,5
11,4
13,3
9,5
11,4
15,2
17,1
11,4
13,3
17,1
22,8
13,3
17,1
20,9
26,6
15,2
19
24,7
32,3
17,1
22,8
30,4
36,1
20,9
26,6
34,2
41,8
DPa [Pa]
24
24
24
24
31
31
31
31
40
40
40
40
50
50
50
50
61
61
61
61
72
72
72
72
85
85
85
85
UR 330 [Water 7/12°C]
Pa [m3/h]
1800
2200
2600
3000
3400
3800
Tia [°C]
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
27
28
29
30
Table of contents
UR [%]
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Tua [°C]
16,5
16,5
16,5
16,5
16,9
16,8
16,8
16,8
17,1
17,1
17,1
17,1
17,3
17,3
17,3
17,4
17,4
17,4
17,5
17,8
17,5
17,6
17,8
18,2
UR [%]
90
90
90
90
88
88
88
88
87
87
87
87
86
86
86
85
85
85
84
84
84
84
84
83
Qtot [kW]
10,64
12,4
14,32
16,31
12,6
14,87
17,24
19,65
14,68
17,41
20,17
22,93
16,85
19,97
23,06
26,11
19,06
22,51
25,88
28,64
21,27
24,99
28,14
31,14
28
Qsen [kW]
6,22
6,77
7,34
7,92
7,34
8,04
8,75
9,44
8,46
9,3
10,13
10,91
9,59
10,56
11,47
12,32
10,72
11,78
12,76
13,49
11,83
12,96
13,85
14,64
Pw [l/h]
1830
2134
2462
2806
2168
2558
2966
3380
2526
2995
3470
3945
2899
3435
3967
4491
3278
3871
4452
4927
3658
4299
4840
5358
DPw [kPa]
7,6
9,5
13,3
15,2
9,5
13,3
17,1
22,8
13,3
17,1
22,8
28,5
17,1
22,8
28,5
36,1
20,9
28,5
36,1
41,8
24,7
34,2
41,8
49,4
DPa [Pa]
31
31
31
31
44
44
44
44
61
61
61
61
79
79
79
79
99
99
99
99
122
122
122
122
4.7 NOISE DATA
In the following table, the following is provided for each unit size :
•
the values of the weighted sound pressure level A for each frequency band indicated [dB(A)];
•
the overall weighted sound pressure level A [dB(A)].
The data refers to the unit operating with fans at top speed, delivery and expulsion vents channelled for at least two
meters, reading distance from the unit 1.5 m, direction factor 2.
Sound pressure level
Frequencies (Hz)
Total
Model
125
250
500
1000
2000
4000
8000
LpTOT (A)
UR 35
UR 55
UR 75
UR 100
UR 150
UR 210
UR 330
42,3
35,6
33,1
34,0
31,9
28,2
14,1
44,4
38,6
35,9
36,2
37,5
38,8
41,0
37,7
36,5
40,3
40,7
44,0
45,6
35,6
37,5
41,4
41,2
45,9
49,4
36,3
38,1
42,2
40,8
48,2
51,0
34,4
37,6
41,4
39,8
45,9
49,1
31,6
34,4
37,6
37,0
42,2
43,2
20,4
22,1
24,4
24,4
29,4
29,3
44,0
44,6
48,1
47,6
52,9
55,6
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29
INSTALLATION, USE AND MAINTENANCE MANUAL
1. Conformity declaration
N.B.: This conformity declaration is valid if the instructions in this manual are complied with
CONFORMITY DECLARATION
Aermec S.p.A.
I-37040 Bevilacqua (VR) Italy – Via Roma, 44
Tel. (+39) 0442 633111
Telefax (+39) 0442 93566 – 0442 93730
www.aermec.com
UR series heat recovery unit
We the understand declare under our own responsibility that this machine complies with the
previsions of:
- Machine directive 89/392/CE and subsequent modifications;
- Low Tension directive 73/23/CE and subsequent modifications;
- Electromagnetic compatibility directive 89/336/CE and subsequent modifications;
Bevilacqua, 01/01/2004
The Commercial Division
Sales and Marketing Director
Luigi Zucchi
MAIN CONDITIONS OF WARRANTY
•
•
•
The warranty does not include payment for damage due to wrong installation of the unit by the installer.
The warranty does not include payment for damage due to improper use of the unit by the user.
The Manufacturer shall not be held liable for accidents to the installer or the user deriving from improper
installation or improper use of the unit.
The warranty is not valid when:
•
servicing and repairs have been carried out by non-authorised companies or persons;
•
the unit has been previously repaired or modified using non-OEM spare parts;
•
the unit has not been maintained properly;
•
if the instructions described in this manual have not been carried out;
•
if non-authorised modifications have been made;
The Manufacturer reserves the right at all times to make any modification for the improvement of its product and is not
obliged to add these modification to machines of previous manufacture that have already been delivered or are being
built.
The warranty conditions are any subject to the general sales conditions at the moment the contract is finalised.
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30
3. Introduction
3.1 GENERAL
This manual is an integral part of the documentation enclosed with the unit.
It must be conserved for future reference and must accompany the machine throughout its
life.
The manual defines the purpose for which the machine has been built and establishes its
correct installation and the limits of its use.
This manual contains all the use, installation and maintenance instructions and the main
accident prevention standards.
You are advised to read and adhere carefully to all the instructions before beginning to install,
start up, use, maintain and clean the unit.
THE MANUFACTURER DECLINES ALL LIABILITY FOR DAMAGE TO THINGS OR INJURY TO
PERSONS AND ANIMALS CAUSED BY THE FAILURE TO OBSERVE THE INSTRUCTIONS AND
STANDARDS IN THIS MANUAL.
3.2 DESCRIPTION OF ICONS
Although during the design of the UR unit, hazards were adequately analysed, the use of the icons described below
makes reading the manual easier by quickly drawing the attention of the reader to hazardous situations that cannot be
avoided or sufficiently limited by the adoption of measures and technical means of protection.
GENERAL HAZARD SIGNAL
Carefully adhere to all the indications next to the icon.
Failure to comply with the instructions may generate hazardous situations with possible
damage to the health of the operator and user in general.
DANGEROUS ELECTRICAL VOLTAGE SIGNAL
Carefully adhere to all the indications next to the icon.
The signal indicates components of the unit or, in this manual, specifies actions that could
generate electrically-related risks.
GENERAL PROHIBITION SIGNAL
Carefully adhere to all the indications next to the icon that limit actions in order to guarantee
better operator safety.
3.3 GENERAL SAFETY RULES
CAUTION!
The units in the UR series are for civil and tertiary sector use: for all other uses (in highly
corrosive environments, in potentially explosive atmospheres etc. ) it is not permitted.
•
•
•
•
•
•
•
Before installation check that the units have not been damaged during the transport phase: the use of the
damaged machine might be dangerous;
Installation and extraordinary maintenance must be carried out by persons with the required qualifications in
compliance with the regulations currently in force;
Never store tools, spare parts, etc. in or on top of the unit. Any use other than that set forth in this manual can
generate hazards and is therefore prohibited;
Before beginning maintenance or cleaning operations, make sure that the unit is not live and that cannot be
supplied unbeknownst to the people carrying out said operations on the unit;
During the maintenance and cleaning phases be careful of possible burns deriving from the heating coils;
Before starting up the unit make sure that the electrical components have been connected to the building's
earthing system;
Before starting up the unit, make sure that the fan vents have been channelled or fitted with an accident
prevention mesh;
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31
•
•
The unit has not been designed for external installation: external installation requires special technical
installation characteristics and features that the AERMEC S.p.A. engineering office can evaluate when asked
to do so;
Use proper Individual Protection Devices (IPD) for installation, maintenance and cleaning.
4. Unit Identification
The units are fitted with:
•
an adhesive plate that summarises the main technical data such as the model, nominal air flow rate, heat recovery
efficiency, electrical data and performance of any coils;
•
an adhesive plate that indicates the gross weight and the customer as well as the model.
Each UR unit is identified by means of a serial number on the plates.
For all future references and for all communication with AERMEC S.p.A. it is necessary to indicate the serial
number.
5. Transport and Handling
CAUTION!
During the handling phase, wear proper individual protection
devices (IPD)
5.1 Packing
CAUTION!
The packaging of the unit must be disposed of in accordance with the regulations currently in
force.
Before installation and use you are recommended to fully unpack basic unit and the all the components that accompany
it.
The units are supplied in packaged form with polyethylene film and normally rest on the wooden pallet with the following
modes:
•
the first five sizes travel in a horizontal position and are fixed with bolts to the pallets by means of brackets that
will serve for anchoring the unit during installation;
•
the UR210 and UR330 travel in a vertical position and are fixed to the pallet with hoops and with bolts by
means of support brackets that cannot later be used for installation purposes.
Some accessories will travel apart from the basic unit for transportation reasons and it is therefore the installer's job to
reassemble them in accordance with the instructions in this manual.
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32
5.2 Transport
Refer to the weight indications on the plate on each unit in order to transport the unit safely.
In any case, the following precautions must be taken when transporting the unit:
•
the unit or any accessories may not be subjected to violent impacts of any kind in order to ensure the frame or
internal components do not get broken;
•
ropes or other devices that can impede movement must be used to properly anchor the unit and any
accessories to the transport plane;
•
during transportation the unit and any accessories must be protected to prevent the protruding parts such as
coil plumbing attachments, condensate drains, electrical components etc. being knocked;
•
during transportation the load must be protected from bad weather;
CAUTION!!
During transportation make sure the unit cannot move. Any movement that can generate
possibly dangerous situations should be avoided by using suitable means of fixing the piece.
5.3 CHECKS AT MATERIAL RECEIPT
When the unit is received it is necessary to carry out an initial inspection to make sure:
•
all the components are there;
•
the basic unit and the accessories have not been damaged.
If there are signs of damage it is necessary to specify it on the carriage note.
The checks are the following:
•
check the manifolds of any finned coils and the condensate drains are undamaged;
•
check that any plumbing attachments are protected by the relevant rubber caps. If they are not provide suitable
closure devices;
•
make sure the panelling is undamaged;
•
make sure the electrical panel and the electrical and electronic components are undamaged.
5.4 STOCKING AT SITE
The following precautions must be taken when stocking on site:
•
the unit and any accessories must be stored inside and protected from accidental knocks;
•
the unit must be protected from dust
CAUTION!
The units must not be used as supports for people or objects.
6. Installation
CAUTION!
During the installation phase, wear proper individual protection
devices (IPD)
CAUTION!!
Installation and extraordinary maintenance must be carried out by persons with the required
qualifications in compliance with the regulations currently in force;
You are recommended to carefully follow the indications in the sections below when installing the equipment. The
sections are in chronological order so as make each phase of the installation easier. .
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33
6.1 SIZES
BASIC UNIT (URxx, URxxW, URxxE, URVxx, URVxxW, URVxxE)
A
A
F
D
B
B
A
C
A
D
F
E
E
A
A
D
E
D
D
H
B
D
D
N.B. : opening with pre-sawing must be fully made on the intake side of the unit.
On the delivery side, the openings must be limited to the space necessary for the housing and fixing of the fan vents. .
E
W
UR35
UR55
UR75
UR MODEL
Dimensions
W
mm
L
mm
A
mm
B
mm
C
mm
D
mm
E
mm
F
mm
F
A
A
F
55
75
900
1090
224
198
98
51
116
156
900
1090
224
198
98
51
116
156
1000
1190
222
230
114
50
138
143
96
32
262
96
262
32
32
262
390
96
D
B
D
L
35
157
298
298
157
162
298
162
298
298
162
298
162
1250
UR100
UR150
96
262
32
1500
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34
157
298
298
157
298 172
558
298 178
262 96
262 96
47
172 298
558
42
32
558
32
390
262 96
32
42
1400
UR210
558
47
96 262
32
1750
178 298
105 298 94 298
298 94 298 105
114 298 94 298
298 94 298 114
1750
UR330
298 94 298 114
96 262
32
2500
114 298 94 298
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35
262 96
105 298 94 298
298 94 298 105
32
390
32
32
262 96
The dimention of the air outlet connection are 298x262mm.
The air intake connection dimention from the internal ambient to external are 558x262mm
262 96
UR210 -
A
E
F
COIL MODULE ACCESSORY (BF, MPW, MPX)
C
D
B
W
1"
UR MODEL
Dimensions
W
A
B
C
D
E
F
Table of contents
mm
mm
mm
mm
mm
mm
mm
35
55
75
100
150
210
330
460
300
800
105
250
250
25
460
300
800
105
250
250
25
510
330
850
130
250
250
40
635
390
970
167,5
300
300
45
635
390
970
167,5
300
300
45
710
390
970
155
400
300
45
860
390
970
80
700
300
45
36
A
E
F
SILENCERS ACCESSORY (SU)
C
D
W
W
B
UR MODEL
Dimensions
W
A
B
C
D
E
F
mm
mm
mm
mm
mm
mm
mm
35
55
75
100
150
210
330
380
300
800
65
250
220
40
380
300
800
65
250
220
40
430
330
800
90
250
220
55
550
390
800
125
300
300
45
550
390
800
125
300
300
45
620
390
800
110
400
300
45
820
390
800
110
700
300
45
6.2 TECHNICAL
Before beginning operations a check must be made to ensure that sufficient space is available:
•
for installing the delivery, expulsion and, if relevant, the free-cooling channels;
•
for fitting the gates with antifreeze function or for the by-pass for free-cooling;
•
for the power supply cables;
•
for the installation of some components (three way valves, syphons for the condensate drain, etc.) without
which the proper functioning of the unit is not guaranteed;
•
for the correct maintenance and cleaning operations.
The figures below show the necessary spaces for the proper installation of the units in a horizontal, vertical and coil
module configuration.
400 mm
In particular:
•
for the condensate drain, a space of at least 200 mm must be
allowed for to make the syphon;
•
at the water coil a space of at least 400 mm must be allowed for
to install the three-way valve and the relative servo-commands.
≅ 400 mm
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37
400 mm
≅ 400 mm
200 mm
400
≅ 800 mm
200 mm
6.3 INSIDE COMPONENTS POSITIONING AND VENT OPENING
CAUTION!
The vents opened with the saw could have small stretches of sheet steel with a cutting edge.
During assembly of the channelling and any accessories pay attention to the sharp edges.
N.B. : opening with pre-sawing must be fully made on the intake side of the unit.
On the delivery side, the openings must be limited to the space necessary for the housing and fixing of the fan
vents. .
The position of the fans and any water heating coil (URxxW, URVxxW) or electrical heating coil
(URxxE, URVxxE) inside the UR unit are easy to identify because the corresponding inspection
panels are fitted with an adhesive plate indicating the hazard presented by live and moving
parts (see figure on the right).
The above-mentioned panels are fitted with screws needing a screwdriver to be undone.
The panels near the filters are fitted with knobs to make maintenance and cleaning easier.
UR (regulation system):
If it is seen that the position of the fan and inside components is suitable for the requirements of the designed
system the only thing that needs doing is:
•
•
•
opening the vents in the chosen position using a saw and following the pre-sawing lines
on the steel sheet;
assembling the discharge sleeve of the condensate collection tank by cutting the polyurethane at the point of
the hole provided for. The flange of the sleeve must be fixed with three bolts on the inside of the unit frame.
The sleeve must then be connected to the tank with a stretch of rubber hose and clips. The external rubber
gasket must be positioned flush with the panelling to stop air leaks;
clean any excess polyurethane or sheet steel away that might damage the unit.
If the fans are not oriented correctly, do the following:
•
•
•
•
•
remove the fan inspection hatches;
dismantle the fans by undoing the four screws and disconnect the electrical cables if necessary;
opening the vents in the chosen position using a saw and following the pre-sawing lines on the steel sheet;
refit the fans in the required position and, if necessary, reconnect the electrical wires following the wiring
diagram and using the holes in the frame for the wires to pass through;
assembling the discharge sleeve of the condensate collection tank by cutting the polyurethane at the point of
the hole provided for. The flange of the sleeve must be fixed with three bolts on the inside of the unit frame.
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38
•
•
The sleeve must then be connected to the tank with a stretch of rubber hose and clips. The external rubber
gasket must be positioned flush with the panelling to stop air leaks;
clean any excess polyurethane or sheet steel away that might damage the unit.
refit the inspection hatches.
If the position of the fans and any heating coils is not suitable for the system requirements designed, do the
following:
•
•
•
•
•
•
•
•
•
•
•
•
remove the inspection hatches;
remove the crossways bar by undoing the two screws at the end (only for horizontal position);
remove the condensate drain by dismantling the two stops (only for the horizontal configuration);
position the filter holder guides in the position required;
dismantle the fans by undoing the four screws and disconnect the electrical cables if necessary;
opening the vents in the chosen position using a saw and following the pre-sawing lines on the steel sheet;
dismantle any water or electrical coil by undoing the four screws, position it in the position required and fix it
with the screws. Make the openings at the manifold outlet with the saw (for water coils);
refit the fans in the required position and, if necessary, reconnect the electrical wires following the wiring
diagram and using the holes in the frame for the wires to pass through and cable clips;
refit the condensate collection tank (only for the horizontal configuration) and fit the drain hose of the
condensate collection tank making a cut in the polyurethane where the holes have been provided for. The
flange of the sleeve must be fixed with three bolts on the inside of the unit frame. The sleeve must then be
connected to the tank with a stretch of rubber hose and clips. The external rubber gasket must be positioned
flush with the panelling to stop air leaks;
clean any excess polyurethane or sheet steel away that might damage the unit.
refit the cross bar (only for the horizontal configuration);
refit the inspection hatches and position their screws that need a screwdriver near the fans.
6.4 POSITIONING OF THE SUPPORT BRACKETS
You are advised not use cross bars near the inspection hatches as fixing systems so as not
make the components inside the unit harder to maintain and clean.
CAUTION!
Check that the characteristics of the walls and fixing systems used for the support of the unit
and any accessories are adequate for supporting the mass of the unit with an adequate
degree of safety.
The unit must be positioned on a flat plane to avoid:
•
damage to the fan motor assemblies when the various masses are not well balanced
•
the malfunctioning of the condensate drains.
The units and coil module and silencers have L-shaped support brackets for horizontal
ceiling installation or floor installation or vertical wall installation.
N.B.: You are advised to place rubber dampers between the brackets and the walls to deaden the vibrations generated
by the machine.
Refer to the following indications to correctly position the brackets:
•
make holes in the wall corresponding to the points shown in the following figures;
•
dismantle the brackets from the unit or the coil module or the silencers by undoing the screws corresponding to
the holes B;
•
screw the brackets to the wall with screws (not supplied) to be placed in correspondence with holes A;
•
partially screw one screw for each bracket in correspondence to holes B to the unit or the coil module or the
silencers;
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39
UR 35 – 55 – 75 – 100 –150
A
B
B
D
B
D
35
650
70
930
\
\
\
55
650
70
930
\
\
\
35
55
75
100
coil module
490 540
665
70
70
70
580 630
750
SU Accessory
415 465
585
70
70
70
580 580
580
B
C
C
B
UR 210
UR 330
B
E
B
F
B
E
B
C
UR MODEL
A
mm
B
mm
C
mm
D
mm
E
mm
F
mm
B
C
75
750
70
1030
\
\
\
100
1060
70
1280
\
\
\
150
1060
70
1280
\
\
\
210
\
70
1430
620
\
\
330
\
70
1780
\
810
300
150
210
330
665
70
750
740
70
750
890
70
750
585
70
580
655
70
580
855
70
580
B
A
UR
MODEL
A
B
C
mm
mm
mm
490
70
580
A
B
C
mm
mm
mm
415
70
580
6.5 UNIT LIFTING AND POSITIONING
In order to be able to lift and position the units and any accessories safely, refer to the weight specifications on the plate
or in this manual.
The unit and any accessories must preferably be lifted using mechanical means and anyway in conformity with current
safety-related regulations.
CAUTION!
When lifting and handling the unit pay attention as it might be top or bottom heavy.
Adhere to the following indications for positioning the unit:
•
position the brackets as described in paragraph 5.4;
•
lift the unit;
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40
•
•
•
•
hook the unit to the brackets on walls by means of the partially tightened screws
slide the unit along bracket holes (B) ;
tighten the other screws to the unit for each bracket corresponding to holes (B);
tighten both the screws.
6.6 COIL MODULE AND SILENCER ASSEMBLY
Indications about what to do when fitting the coil module are given below.
Considering the structure of the module containing the silencer septums is substantially the same as the coil module, the
following indications can also be used for fitting the silencer module:
Operate as follows:
• dismantle the connection flange (B) of the coiling
section;
• prepare the holes in the heat recovery unit needed for
the housing the threaded inserts on the flange (B);
B
C
• fix the connection flange (B) to the heat recovery unit
with the six self-threading screws, in correspondence
to the fan's delivery vent;
D
• move the electrical box and position it as in the figure,
passing the electrical cables (D) through the fairways
on the unit and on the module;
•
position the support brackets following the instructions in paragraph 5.4, in such a way that the module is
aligned along side (C);
•
lift the module;
•
using the screws partially screwed to the module hook the module to the brackets on the walls and slide it
along until it rests on the unit;
• remove the lower panel (E) of the module and, with the
screws supplied, lock the panel to the connection
flange (B) through the slots provided and tighten the
screws into the relevant hexagonal inserts;
• reposition the lower panel (E) of the module;
• screw the other screw of each bracket to the module;
• tighten both the screws right up.
6.7 CONNECTION OF DUCTS
CAUTION!
never start up the UR unit when the fan outlets are not ducted or covered by protective mesh.
The circular flange accessory can easily be fitted at the rectangular vents using self-threading screws.
As the UR330 is fitted with two parallel fans for each air flow, two circular flanges are required for delivery and extraction.
For the installation of the channels the following are recommended:
the preparation of sufficient brackets to support the channelling in order to prevent its weight bearing on the
•
heat recovery unit;
•
connect the delivery and recovery vents to the channels and put anti-vibrating joints (canvas) between them.
The anti-vibrational joint must be screwed to the panel with anti-threading screws and the screws must be
positioned inside the edge shown in the following diagram so as to ensure that the canvas joints are taut during
the operational phase;
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41
•
•
set up an electrical earth wire that acts as the bridge on the anti-vibrating joint to ensure the equipotential
between the channel and the recovery unit;
set up the delivery channel with a straight stretch before the curves, branches etc. of approximately one meter
and avoid the channel having branch stretches with an inclination of more than 7°.
≥ 1 mt
max 7°
6.8 HYDRAULIC CONNECTIONS
6.8.1 CONDENSATE DISCHARGE
The drain pan is provided with a threaded drain pipe with a diameter of 1/2” G UNI 338.
The drainage system should feature an adequately sized siphon to:
•
ensure free condensate drainage;
•
prevent the inadvertent entry of air into the circuit under negative pressure;
•
prevent the inadvertent leakage of air from the pressurised circuit;
•
prevent the entry of unpleasant odours and insects.
In the lower part of the syphon must have a bleed cap or must anyway permit fast dismantling for its cleaning.
Rules to follow for the scaling and production of the syphon are given below.
H1 = 2P
H2= H1 / 2
where P is the pressure expressed in mm of the water
column (1 mm c.a. = 9.81 Pa).
6.8.2 WATER BATTERY CONNECTION
All the water coil manifolds are fitted with female threaded attachments for the entry and exit of the water. Hoses with
threaded attachments with a diameter of 1” G UNI 338 and bleed valve are supplied as standard.
For proper installation, follow these simple instructions:
•
in the case of bad climate conditions it is best to fit antifreeze devices;
•
the route of the piping must be studied in such a way so as not to create obstacles when the coil is extracted
and not prevent inspection and maintenance of the unit and any accessories;
•
the preparation of sufficient brackets to support the piping in order to prevent its weight bearing on the heat
recovery unit;
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42
•
•
•
•
•
when screwing the manifolds and the hydraulic circuits make sure that you do not generate stresses that could
damage the coil manifolds;
provide for cut off valves to isolate the coil from the rest of the circuit should it need to be disconnected from
the hydraulic circuit;
for the connection of the water feed piping, follow the indications on the “WATER IN” and “WATER OUT” plates
on the external panelling;
fit the bleed valve at the highest part of the coil and a water drainage valve in the lowest part;
when the connection has been made position the external rubber gasket flush with the panelling to stop air
leaks;
CAUTION!
To avoid being burnt the pipes must be carefully insulated with suitable material until flush
with the panelling.
6.9 ELECTRICAL WIRING
CAUTION!
The electrical wiring and connections must be done persons qualified to do so in accordance
with regulations currently in force.
6.9.1 Earthing
CAUTION!
Every electrical user must be connected to the system's earthing system.
Use the connectors marked with symbol next to them to connect the earth of the unit and any
accessories to the building's earth.
The electrical box placed sideways on the unit has connectors for earthing the unit's components and accessories.
6.9.2 CONNECTION TO THE ELECTRICITY MAINS
CAUTION!
Make sure the characteristics of the mains are compatible with the electrical characteristics
indicated on the component rating plates.
A manually-controlled power sectioning device must be provided for each power supply.
REGULATION SYSTEM:
The UR series heat recovery units are fitted with external junction boxes. The unit's motor feed cables and those for the
electrical coil converge in them.
If the accessory module is being assembled (silencer or coil module), the junction box must be moved.
The terminal block on the junction box permits the connection between motors and electronic regulators (supplied as
standard) to be made by the installing company following the wiring diagrams below taking care to have differential
thermal trips upline (one for each fan).
The electronic regulators can operate remotely in the environment to make for an easy regulation of the flow rate.
Two stickers are supplied as standard to stick on the regulators to show the delivery and the expulsion fans.
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44
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45
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46
6.9.3 CONNECTION TO THE ELECTRICAL HEATING ELEMENTS
CAUTION!
Make sure the characteristics of the mains are compatible with the electrical characteristics
indicated on the component rating plates.
For the correct connection of the electrical heating elements follow these instructions:
•
prepare adequate protection with differential thermal trip cut outs upline;
•
always connect the safety thermostat to guarantee the interruption of the feed of the electrical battery in the
case of excess temperature;
•
the safety thermostat must be serial with the regulation thermostat (not supplied);
•
the power feed of the coil must be interlocked with the fan function;
•
always connect the earth cable of the electrical heating element with the terminal in the junction box.
Remember, if there is the RG regulation system accessory is present, only two of the coil stages can be managed.
UR35E
UR55E
UR75E
UR100E
UR210E
UR150E
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47
Table of contents
UR330E
MPX35
MPX55
MPX75
MPX100
MPX150
48
MPX210
MPX330
6.10 FIRST STARTUP CHECKS
CAUTION!
Make sure that all the instructions have been complied with before carrying out the
commissioning checks.
Before the first startup of the heat recovery unit check the following points:
•
exact positioning of the panels for whose opening a screwdriver is necessary near the fan motor units;
•
anchorage of the unit to the walls;
•
connection of the unit to the building's earthing system;
•
connection with the channels;
•
connection of the condensate drain with syphon;
•
insulation of the coil feed tubes;
•
connection of the earth wires of the electrical components;
•
absence of air in the water coils;
7. Usage
RU fitted with electronic regulators:
A sticker must be placed on each regulator during installation to show the delivery and the expulsion fans.
For models UR35, UR55, UR75, UR100 and UR150:
• l’turning on the delivery and expulsion fan is by turning the knob of the respective
regulator from STOP clockwise until a click is heard;
• la flow rate regulation is by turning the knob continuously and independently for each
fan into the position required;
• turning off the delivery and expulsion fan is by turning the knob of the respective
regulator to STOP .
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For models UR210 and UR330:
• turning on the delivery and expulsion fan is by positioning the on button of the
respective regulator at 1;
• la flow rate regulation is by turning the knob continuously and independently for each
fan into the position required;
• turning on the delivery and expulsion fan is by positioning the on button of the
respective regulator at 0;
8. Unit Maintenance
CAUTION!
During the maintenance
protection devices (IPD)
phase,
wear
proper
individual
CAUTION!
Before accessing the unit for maintenance and cleaning make sure that it is not live and that it
cannot be supplied unbeknownst to the person working on it and that the heat exchanger
coils are not working.
CAUTION!
During the maintenance phase the weight of the panelling could be heavy for the operator.
The UR series heat recovery units have been designed for requiring reduced maintenance and to make all operations
easy. Some simple pieces of advice follow for the proper maintenance of the unit.
Filters:
Filter cleaning is imperative to maintain high air quality in the room. Synthetic filters on the UR unit can be regenerated
with the aid of a jet of compressed air or they can be washed with cold water. To dismantle the filters:
•
remove the inspection hatch with knobs;
•
remove the filters;
•
clean the filters;
•
refit all the components in the reverse order.
Condensate collection tank:
Dirt can build up in the condensate collection tank. You are therefore recommended to clean the tank regularly and
check the discharge piping is not clogged. To remove the condensate collection tank on the heat recovery unit:
•
remove the inspection panelling;
•
dismantle the cross bar;
•
loosen the clip and remove the rubber fitting connecting the tank to the discharge hose;
•
remove the tank support brackets;
•
clean the tank;
•
refit all the components in the reverse order.
In order to access the condensate collection tank on the coil module, detach the module from the unit and dismantle it.
Heat recovery unit:
The heat recovery unit can be cleaned with a jet of compressed air or cold water. To dismantle the heat recovery unit:
•
remove the collection recovery tank;
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50
•
•
•
remove the heat recovery unit support brackets;
clean the heat recovery unit;
refit all the components in the reverse order.
Motor ventilating assembly:
The motor ventilating assembly needs to be checked to see how clean the rotor is and whether there is corrosion or
damage, and that there are no abnormal noises. If necessary dismantle the motor ventilating assembly as follows:
•
remove all the inspection panelling;
•
disconnect the power cables;
•
undo the four screws supporting each motor ventilating assembly on the structure;
•
check the motor ventilating assemblies and replace them if necessary;
•
refit all the components in the reverse order.
Heat exchanger coils:
To maintain an efficient heat exchange the coils must be cleaned with a jet of compressed air and the circuit (water coil)
must be free from air. To dismantle the heat exchange coils:
•
completely empty the coils (water coils);
•
disconnect the coil from the hydraulic circuit;
•
remove the condensate collection tank;
•
undo the two screws that fix the coil to the heat recovery unit pack,
•
undo the two screws fixing the battery to the unit's frame through the L shaped support bracket;
•
check and clean;
•
refit all the components in the reverse order.
In order to access the condensate collection tank on the coil module, detach the module from the unit and dismantle it.
The following table shows the operations for the maintenance of each component showing what type of check to make
and the frequency of the interventions. The frequency is approximate and varies depending on the working and
environmental conditions the heat recovery unit is in.
Component
Filters
Coils
Condensate tank
Recovery exchanger
Phase
Check dirt
Check pack cleanliness
Check dirt
Check pack cleanliness
Scheduled time
fortnightly
yearly
yearly
yearly
9. Waste
At the end of the life of UR series units they must be disposed of according to the regulations in force.
The main materials the UR series systems are composed of are:
•
galvanised sheet steel (panels, condensate collection tank, fans);
•
aluminium sheet (coil fins, heat recovery unit, gates, electrical motor body);
•
copper (coil pipes, electrical motor windings);
•
foam polyurethane (insulation in sandwich panels);
•
rock wool (silencers).
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10 Diagnosis and Troubleshooting
Some of the possible solutions to the main problems that may be encountered during UR unit functioning are given
below.
It must recognised that other causes of malfunctioning may depend on the system of which the unit is part.
Problem
Insufficient air flow rate
Excess air flow
No air flow rate
Strange noises
Flow
Possible cause
- Fan rotation speed too low
- Distribution system pressure drop underestimated
- Filters clogged
- Extraction grill clogged
- Coils encrusted
- Fan rotation speed too high
- Distribution system pressure drops overestimated
- Non-assembly of the filters
- Power not on
- Electric motor burnt out
- Excessive flow rate
- Worn or defective bearings
- Foreign bodies in the fan rotors
- Clogged syphon
- No syphon or one that has not been made properly
- Input temperature not required
- Air in the coils
The required temperature is not
reached
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Remedies
- Clean the components
- Increase the fan speed
- Reduce the fan speed
- Assemble the filters
- Check power
- Replace the electric motor
- Reduce the flow rate
- Replace the bearings
- Clean the impeller
- Clean syphon
- Fit a proper syphon
- Bleed the coils
- Insufficient water flow rate
- Increase the water flow
- Water temperature too low
- Check the water temperature
- Fault in the regulation system
- Dirty pack surface
- Check the regulation system
- Clean the pack surface
52
Aermec partecipa al Programma di
Certificazione EUROVENT.
I prodotti interessati figurano nella Guida
EUROVENT dei Prodotti Certificati.
I dati tecnici riportati nella presente documentazione non sono impegnativi.
L’Aermec S.p.A. si riserva la facoltà di apportare in qualsiasi momento tutte le
modifiche ritenute necessarie per il miglioramento del prodotto.
AERMEC S.p.A.
I 37040 Bevilacqua (VR) - Italia
Via Roma, 44 - Tel. (+39) 0442 633111
Telefax (+39) 0442 93566 - 0442 93730
www.aermec.com
Aermec is partecipating in the EUROVENT
Certification Programme.
Products are as listed in the EUROVENT
Directory of Certified Products.
Technical data shown in this booklet are not binding.
Aermec S.p.A. shall have the right to introduce at any time whatever modifications deemed necessary to the improvement of the product.