CEILING-MOUNTED
AIR-HANDLING UNITS
PKU Series
proKLIMA
2 CEILING-MOUNTED AIR-HANDLING UNITS - PKU Series
Owing to an extraordinarily flexible range of products the PKU series is undoubtedly able to offer
solutions which will best meet your specific requirements for air conditioning and ventilation of:
industrial plants, workshops, warehouses .....
shopping malls,
supermarkets ...
shops,
points of sale ....
restaurants, cafés,
bars ....
offices, business
premises ....
or residential
buildings.
proKLIMA
3
FEATURES 1
Air-handling units are designed to maintain purity, temperature and humidity of air by means of air filtration, heating,
cooling and humidification or dehumidification. In most cases
the air treatment process in air-handling units is completely
automatic.
TABLE OF CONTENTS
1 Features
p. 3
2 Installation
p. 4
3 Dimensions
p. 4
4 Description
of units
p. 5
5 Standard
configurations
p. 6
6 Fan features
p. 8
7 Pressure drops
p. 9
p. 10
9 Cooler features
p. 11
p. 12
11 Electrical data
p. 13
Air-handling units in 3 different sizes cover the air flow
volumes ranging from 500 - 4,000 m3/h. The combination of
sizes and designs provides a maximum adaptability to the
space available. The devices are manufactured as single units
or blocks comprising more elements depending on the airhandling unit size and conditions of transporting and bringing
the device into a building. Commonly used air-handling blocks
are offered as standard systems, with elements to be
assembled into wholes, thus reducing the costs of transport,
handling and installation.
Ceiling-mounted air-handling units are made of aluminium
profiles and galvanized double steel plate lining with a 15mm
thick thermal insulation. The lining meets the basic thermal
and sound insulation requirements and falls within A1 category
of non-combustible materials according to DIN 4102. The heat
transfer coefficient of the devices is k=1.4 W/m2K. On
customer’s request the outer lining of units may have a plastic
coating of a RAL colour as desired.
Locks, handles and metal fittings can be easily operated. All
connections are sealed with a special waterproof and airtight
rubber band and a silicone-free sealing material.
The design and quality of units and built-in materials allow a
carefree and quiet operation that meets the noise level
requirements prescribed.
12 Wiring diagram
p. 13
13 Tender text
(example)
Air-handling units dimensions are determined on the basis of
the module dimension of 305 mm, or rather basic filter insert
dimensions of 290 x 595 mm and 290 x 290 mm.
Air-handling units are manufactured in conformity with
EN 1886.
8 Heater features
10 Sound attenuator
features
Ceiling-mounted air-handling units of PKU series, size 1 - 3,
are air treatment units that provide a comfort environment of
air-conditioned rooms. By combining diverse functional units
it is possible to provide equipment with options ranging from
common ventilation with filtration to a complete air treatment
that includes exploitation of exhaust air heat. They are
primarily used for installation under the ceiling or into the
ceiling structure and intended for horizontal or vertical
installation, for connecting to ventilation ductwork or for a
direct blowing of treated air into the room.
p. 13
The fan and filter manipulation doors placed on the bottom
side and the heat exchanger connections placed laterally
facilitate access to built-in units, their maintenance and
replacement.
Diverse modifications in the design and connections are
possible on request, depending on the on-site situation or
project requirements.
4 CEILING-MOUNTED AIR-HANDLING UNITS - PKU Series
2 INSTALLATION
Ceiling (horizontal) installation
Vertical installation
Rooftop (external) installation
3 DIMENSIONS
Basic dimensions of ceiling-mounted air-handling units are determined according to standard dimensions of filter inserts
and nominal air flow volume and dependent on the handling method (from the bottom side - as standard, from the upper
side or laterally on request).
FILTER
595«290
325
FILTER
595«290
670
PKU-3
FILTER
290«290
FILTER
595«290
960
FILTER
595«290
1265
Dimensions and location of flexible connections and
dampers are shown in the drawing and the table attached.
Type
PKU1
PKU2
PKU3
Front
210 x 605
310 x 605
210 x 885
310 x 885
210 x 1195
310 x 1195
Location
Lateral
AIR FLOW
DIRECTION
On the top
310 x 275
210 x 605
310 x 450
210 x 885
310 x 800
210 x 1195
The dampers are 125 mm and flexible connections 135 mm
wide.
Subject to technical alterations!
350
PKU-2
350
PKU-1
FROM
ABOVE
LATERAL
AIR FLOW
DIRECTION
FRONTAL
proKLIMA
5
DESCRIPTION OF UNITS 4
FILTER UNIT (F) is a segment of an air-handling unit that separates impurities
from the air. It is normally constructed as a panel filter class G3 and G4, but other
filter types (bag filter, etc.) may also be installed if required.
In accordance with EN 779 and the EUROVENT 4/5 classification dimensions and
types are adjusted to the air-handling unit size and the level of separation or rather
efficiency. The filter is made of glass fibre, synthetic fibre, fabric, etc. with a
labyrinth structure.
ELECTRIC HEATER (GE) is a heat exchanger in which electrical energy is
transformed into thermal. It has a form of a circular, alloy steel rod.
It is used mostly in cases when no other thermal energy source is available (warm
water or vapour) or as an alternative heater. The heater supply voltage is 230 or
400 V/50 Hz. Depending on the capacity or requirement the heater may be actuated
stepwise (1 - 6 stages linearly or 64 stages binary) or continuously.
It is recommended to mount the electric heater on the discharge side of the fan. A
flow separator is to be installed between the fan and the electric heater to enable
the air current distribution over the entire electric heater cross section.
A protective thermostat is used to limit the maximum temperature of air passing
the fan to 60°C (40°C in case of a PKU1 model with an electric motor of Pm = 1 kW).
HEATER (G) is a heat exchanger between warm water and air or vapour and air
made of aluminium fins placed on mechanically expanded copper tubes which
allows for a high heat transfer coefficient.
Manifold connections may be threaded or flanged (on request) and are to be
attached in the counterflow.
COOLER (H) is a heat exchanger between cold water and air or rather freon and
air. It is made of aluminium fins placed on mechanically expanded copper tubes,
which allows for a high heat transfer coefficient. A cooler of a standard design
includes also a droplet eliminator, but on request or if possible (for lower air
velocity) it can also be supplied without a droplet eliminator which will reduce the
unit. The unit is equipped with a stainless steel condensate receiver with a 1/2”
connection for condensate removal and a corresponding siphon.
Manifold connections may be threaded or flanged (on request) and are to be
attached in the counterflow.
FAN UNIT (F) is an air-handling device driving unit in which the air is given
energy necessary to overcome resistance to the flow through the device (internal
pressure drop) and through air circuit elements (external pressure drop).
The electric motor supply voltage is 230 V / 50 Hz. According to the requirements
and depending on the electric motor power, the motor turnovers may be controlled
by a transformer, voltage or frequency regulator of the rated speed, which enables
the accurate adjustment of the required air volume flow.
SOUND ATTENUATOR (PZ) is a unit designed to reduce the fan-generated
noise level. It consists of barriers made of a special paper lined mineral wool
stuffed into galvanized steel frames.
The material used for barriers is highly absorbing, does not absorb moisture and is
non-combustible according to DIN 4102 class A1.
The barriers are wear resistant. Air deflectors built in on the front side provide
favourable air flow conditions.
The unit is available in lengths of 600 and 900 mm, depending on the attenuation
level required.
When installing a sound attenuator on the discharge side of the fan, a space of 200
mm is to be left free in front of the barriers to allow for the air flow tranquillization
and distribution.
An alternative solution for sound attenuation may also be the installation of a
sound attenuator in the ventilating duct.
6 CEILING-MOUNTED AIR-HANDLING UNITS - PKU Series
PLATE RECUPERATOR (RP) is used for exploitation of return air heat, which
helps achieve considerable energy savings. It is made of specially formed
interconnected aluminium fins that facilitate cross-exchange of heat between the
return and fresh air flow. The plate exchanger design allows for an absolute
separation of airflow, thus preventing the transfer of any impurity, smell, moisture,
bacteria, etc. from the return to the fresh air.
On request and in accordance with the project requirements it is possible to mount
a droplet eliminator and a by-pass duct for the air flow to circumvent the heat
exchanger partly or completely.
AIR MIXING (M) OR AIR DOUBLE-MIXING UNIT (MM) with dampers and
necessary flexible connections enables mixing of fresh and return air in a desired
proportion for energy-saving purposes. The dampers may be manually or electric
motor operated.
On request or according to project requirements other functional units (humidifier,
empty units, etc.) may also be mounted. In such a case please contact the
manufacturer.
5 STANDARD CONFIGURATIONS
350 x W
SP-1
Type
PKU 1
Length L (mm) 550
Width B (mm)
680
Weight (kg)
56
L
PKU 2
660
960
76
PKU 3
660
1270
103
PKU 2
960
960
114
PKU 3
960
1270
153
PKU 2
1460
960
122
PKU 3
1460
1270
162
PKU 2
1540
960
148
PKU 3
1880
1270
194
PKU 2
1530
960
154
PKU 3
1530
1270
208
350 x W
SP-2
Type
PKU 1
Length L (mm) 850
Width B (mm)
680
Weight (kg)
85
L
350 x W
SP-3
Type
PKU 1
Length L (mm) 1350
Width B (mm)
680
Weight (kg)
94
L
W x 350
SP-4
350 x W
L
L
Type
PKU 1
Length L (mm) 1200
Width B (mm)
680
Weight (kg)
113
SP-5
Type
PKU 1
Length L (mm) 1420
Width B (mm)
680
Weight (kg)
114
350 x W
proKLIMA
L
NOTE:
With one heat exchanger
(heater/cooler). For rating
purposes apply a heater
with the fin spacing s = 2.5
mm and a safety factor of
100%.
SP-5GH
Type
PKU 1
Length L (mm) 1220
Width B (mm)
670
Weight (kg)
95
PKU 2
1330
960
127
PKU 3
1330
1270
170
PKU 2
2220
960
258
PKU 3
2420
1270
338
PKU 2
2950
960
320
PKU 3
3150
1270
422
SP-6
350 x W
Type
PKU 1
Length L (mm) 2000
Width B (mm)
680
Weight (kg)
197
L
350 x W
SP-7
L
Type
PKU 1
Length L (mm) 2700
Width B (mm)
680
Weight (kg)
243
SP-8
W x 350
Type
PKU 1 PKU 2 PKU 3
L (mm)
2400
2800 3250*
W (mm)
1400
1980
2590
Weight (kg)
386
530
731
* for a maximum air flow volume of 3,000 m3/h
NOTE :
Insulation thickness 25 mm.
Heat transfer coefficient k = 0.92 W/m2K
Additional noise damping by the unit casing
Lp1(A)add = Lp1 (A) - 3 dB
L
W x 350
SP-9
Type
L (mm)
B (mm)
W (kg)
PKU 1
1780
1480
241
PKU 2
2150
2040
318
PKU 3
2470
2660
420
Alternative:
Placement of dampers on the front side of
the unit (dashed).
SP-10
Type
PKU 1 PKU 2 PKU 3
Sound attenuator L=600 mm
L (mm)
1900
2010
2010
Weight (kg)
104
138
184
350 x W
L
L
Sound attenuator L=900 mm
L (mm)
2500
2610
2610
Weight (kg)
118
157
209
W (mm)
The standard system weights specified are approximate values only.
Block lengths L are maximum values, but can be smaller depending on the elements built in.
680
960
1270
7
8 CEILING-MOUNTED AIR-HANDLING UNITS - PKU Series
6 FAN FEATURES
Apply for air density of 1.2 kg/m3.
PKU 1
1500
400
2900
1000
2800
900
360
1300
[230V]
rpm
64dB
320
700
500
300
2700
[180V]
rpm
Speed nv[rpm]
Speed nv[rpm]
900
Static pressure PV[Pa]
1100
65dB
280
[120V]
64dB
240
66dB
200
2600
2500
2400
Static pressure PV[Pa]
rpm
800
rpm
700
75dB
600
500
61dB
65dB
75dB
400
160
120
300
69dB
60,5dB
67dB
200
80
60dB
40
120V
50Hz
180V
50Hz
100
230V
50Hz
230V
50Hz
0
0
0
500
1000
1500
0
2000
500
Air flow volume V[m3/h]
1000
1500
2000
2500
3000
Air flow volume V[m3/h]
PKU 2
1500
600
1300
540
1500
800
1300
720
rpm
rpm
700
500
300
Static pressure PV[Pa]
Speed nv[rpm]
900
480
1100
65,9dB
[230V]
Speed nv[rpm]
1100
420
[180V]
360
65,4dB
[120V]
68,6dB
63,7dB
300
900
700
500
Static pressure PV[Pa]
rpm
rpm
74,5dB
74,5dB
[180V]
640
74dB
rpm
75dB
74dB
560
75,5dB
[120V]
73,5dB
73dB
400
180V
50Hz
320
67,2dB
240
180
230V
50Hz
73,5dB
480
73dB
300
240
[230V]
rpm
72dB
71,6dB
65dB
120
160
120V
50Hz
68,2dB
80
60
120V
50Hz
180V
50Hz
230V
50Hz
0
0
0
500
1000
1500
2000
3
Air flow volume V[m /h]
2500
3000
0
500
1000
1500
2000
2500
3
Air flow volume V[m /h]
3000
proKLIMA
9
PKU 3
1500
600
1500
800
[230V]
540
1300
rpm
rpm
700
500
300
65,9dB
420
[180V]
360
65,4dB
[120V]
63,7dB
300
1100
[230V]
Speed nv[rpm]
Speed nv[rpm]
900
480
Static pressure PV[Pa]
1100
68,6dB
900
700
500
720
Static pressure PV[Pa]
1300
rpm
[180V]
rpm
77,5dB
[120V]
78dB
rpm
640
77dB
78dB
rpm
77dB
560
78,5dB
76,5dB
480
230V
50Hz
77dB
76dB
400
76dB
240
300
67,2dB
180
180V
50Hz
320
240
74dB
71,6dB
65dB
120
160
68,2dB
120V
50Hz
60
120V
50Hz
180V
50Hz
80
230V
50Hz
0
0
0
1000
2000
3000
4000
5000
6000
0
1000
Air flow volume V[m3/h]
2000
3000
4000
5000
Air flow volume V[m3/h]
7 PRESSURE DROPS
Pressure drops on the air side [Pa] for individual structural elements and units are shown in the following table:
PKU 1
Type
3
Air flow volume [m /h]
Damper inlet
Panel filter G3 and G4
Electric heater
Heater 2R (double-row)
Cooler 4R (four rows)*
Cooler 5R (five rows)*
Cooler 6R (six rows)*
Droplet eliminator
Sound attenuator
Plate recuperator **
500
10
130
4
5
12
17
20
6
7
60
1000
20
150
9
21
45
62
75
11
12
120
PKU 2
1500
30
165
20
45
100
133
160
22
17
160
1500
20
150
10
19
45
57
91
11
13
80
2000
25
160
15
33
80
98
118
17
16
120
PKU3
2500
30
170
21
50
120
150
180
26
19
140
2500
25
155
14
28
65
83
100
16
15
140
3250
30
170
20
46
110
136
164
26
18
190
4000
35
185
24
68
160
201
242
34
21
220
NOTES:
*The pressure drop in the cooler unit equals the sum of the pressure drop over the heat exchanger with a selected number
of rows (4R, 5R or 6R) increased by the pressure drop over the droplet eliminator.
** The pressure drop over the plate recuperator related to the plate heat exchanger only (pressure drops over the droplet
eliminator and filter are not taken into account and should be added to the pressure drop over the plate recuperator).
6000
10 CEILING-MOUNTED AIR-HANDLING UNITS - PKU Series
8 HEATER FEATURES
Ratings for 2R (double-row) water heater. Fin spacing s = 2.1 mm.
PKU 1
Pipe connection R 1/2”
500
50/45°C
80/60°C
90/70°C
Air flow volume [m3/h]
tin[°C]
-20
-15
-10
-5
0
5
10
-20
-15
-10
-5
0
5
10
-20
-15
-10
-5
0
5
10
Q[kW]
11.2
10.6
10.0
9.4
8.9
8.3
7.7
10.0
9.4
8.8
8.2
7.6
7.1
6.5
7.7
7.1
6.5
5.9
5.3
4.8
4.2
tout[°C]
46.0
45.6
49.1
50.7
52.7
53.9
55.4
38.8
40.4
41.9
43.5
45.1
46.7
48.2
25.2
26.8
28.3
29.9
31.5
33.1
34.7
1000
∆pW[kPa]
1.6
1.5
1.3
1.2
1.1
1.0
0.8
1.4
1.2
1.1
1.0
0.8
0.7
0.6
11.2
9.7
8.3
7.0
5.8
4.7
3.8
PKU 2
90/70°C
80/60°C
50/45°C
tin[°C]
-20
-15
-10
-5
0
5
10
-20
-15
-10
-5
0
5
10
-20
-15
-10
-5
0
5
10
1500
Q[kW]
26.7
25.3
23.9
22.5
21.1
19.7
18.3
23.8
22.4
21.0
19.5
18.1
16.7
15.3
18.5
17.1
15.6
14.2
12.8
11.4
10.0
tout[°C]
32.6
34.8
37.0
39.3
41.5
43.7
46.0
26.7
29.0
31.2
33.4
35.7
37.9
40.1
16.3
18.5
20.8
23.0
25.2
27.5
29.7
Q[kW]
22.3
21.1
19.9
18.7
17.5
16.3
15.2
19.7
18.6
17.4
16.2
15.0
13.8
12.7
15.5
14.3
13.1
11.9
10.7
9.6
8.4
tout[°C]
23.8
26.4
29.1
31.8
34.5
37.1
39.8
18.8
21.5
24.2
26.9
29.5
32.2
34.9
10.5
13.1
15.8
18.5
21.1
23.8
26.5
Q[kW]
36.3
34.3
32.4
30.5
28.6
26.6
24.7
32.2
30.3
28.3
26.4
24.5
22.6
20.6
25.2
23.3
21.3
19.4
17.5
15.6
13.6
tout[°C]
22.8
25.5
28.2
31.0
33.7
36.4
39.1
18.0
20.7
23.4
26.2
28.9
31.6
34.3
9.7
12.5
15.2
17.9
20.6
23.4
26.1
∆pW[kPa]
5.6
5.1
4.6
4.1
3.7
3.2
2.8
4.7
4.2
3.7
3.3
2.9
2.5
2.1
39.6
34.4
29.4
24.8
20.5
16.6
13.1
Q[kW]
31.8
30.1
28.4
26.8
25.1
23.4
31.7
28.3
26.6
24.9
23.2
21.5
19.8
18.2
22.1
20.4
18.7
17.0
15.3
13.6
12.0
tout[°C]
26.9
29.4
31.9
34.5
37.0
39.5
42.0
21.7
24.2
26.7
29.2
31.7
34.3
36.8
12.5
15.0
17.6
20.1
22.6
25.1
27.6
2500
∆pW[kPa]
4.9
4.4
4.0
3.6
3.2
2.8
2.5
4.1
3.6
3.2
2.9
2.5
2.2
1.8
34.1
29.5
25.3
31.4
17.7
14.4
11.3
∆pW[kPa]
6.2
5.6
5.0
4.5
4.0
3.5
3.1
5.1
4.6
4.1
3.6
3.1
2.7
2.3
43.4
37.6
32.2
27.1
22.5
18.2
14.4
Pipe connection R 3/4”
2500
Air flow volume [m3/h]
90/70°C
1500
∆pW[kPa]
3.6
3.3
3.0
2.7
2.4
2.1
1.8
3.0
2.7
2.4
2.1
1.9
1.6
1.4
25.4
22.0
18.8
15.9
13.2
10.7
8.4
2000
∆pW[kPa]
3.6
3.2
2.9
2.6
2.3
2.1
1.8
3.0
2.7
2.4
2.1
1.8
1.6
1.4
24.8
21.5
18.4
15.5
12.9
10.5
8.3
PKU 3
80/60°C
tout[°C]
31.5
33.8
36.1
38.4
40.7
42.9
45.2
25.8
28.1
30.3
32.6
34.9
37.2
39.5
15.7
17.9
20.2
22.5
24.8
27.1
29.3
Pipe connection R 1/2”
Air flow volume [m3/h]
50/45°C
Q[kW]
17.5
16.6
15.6
14.7
13.8
12.9
11.9
15.5
14.6
13.7
12.8
11.8
10.9
10.0
12.1
11.2
10.2
9.3
8.4
7.5
6.6
tin[°C]
-20
-15
-10
-5
0
5
10
-20
-15
-10
-5
0
5
10
-20
-15
-10
-5
0
5
10
Q[kW]
41.1
39.0
36.8
34.6
32.5
30.3
28.1
36.5
34.4
32.2
30.0
27.9
25.7
23.5
28.5
26.3
24.1
22.0
19.8
17.6
15.4
tout[°C]
28.5
31.0
33.4
35.8
38.3
40.7
43.2
23.1
25.5
28.0
30.4
32.9
35.3
37.8
13.6
16.0
18.5
20.9
23.3
25.8
28.2
3250
∆pW[kPa]
4.6
4.2
3.8
3.4
3.0
2.7
2.3
3.9
3.5
3.1
2.7
2.4
2.1
1.8
32.3
28.0
24.0
20.3
16.8
13.6
10.8
Q[kW]
48.0
45.5
42.9
40.4
37.8
35.3
32.8
42.6
40.1
37.5
35.0
32.5
29.9
27.4
33.4
30.8
28.3
25.7
23.2
20.6
18.1
Ratings for other modes of operation available on request.
tout[°C]
23.6
26.3
29.0
31.7
34.3
37.0
39.7
18.7
21.4
24.1
26.8
29.5
32.1
34.8
10.3
13.0
15.6
18.3
21.0
23.7
26.4
4000
∆pW[kPa]
6.1
5.6
5.0
4.5
4.0
3.5
3.1
5.1
4.6
4.1
3.6
3.1
2.7
2.3
43.0
37.3
31.9
26.9
22.3
18.1
14.2
Q[kW]
54.1
51.2
48.4
45.5
42.6
39.7
36.8
48.0
45.1
42.3
39.4
36.5
33.6
30.8
37.7
34.8
31.9
29.0
26.1
23.2
20.4
tout[°C]
19.9
22.8
25.7
28.5
31.4
34.3
37.2
15.4
18.3
21.2
24.0
26.9
29.8
32.7
7.8
10.7
13.5
16.4
19.3
22.1
25.0
∆pW[kPa]
7.6
6.9
6.2
5.6
4.9
4.4
3.8
6.3
5.7
5.0
4.4
3.9
3.3
2.8
53.6
46.4
39.6
33.4
27.7
22.5
17.7
proKLIMA 11
COOLER FEATURES 9
WATER COOLER
Fin spacing s = 2.5 mm
PKU 1
Pipe connection R 3/4”
500
Air flow volume [m3/h]
No.of rows tin[°C] r.v.in[%] Q[kW]
Water
7/12°C
4R
5R
6R
34
32
29
34
32
29
34
32
29
45
40
46
45
40
46
45
40
46
5.8
4.4
3.8
6.5
5.0
4.3
7.0
5.4
4.7
tout[°C] r.v.out[%]∆pW[kPa] Q[kW]
14.4
14.1
13.7
12.3
12.2
12.0
10.8
10.8
10.7
91
88
90
95
93
94
97
96
96
PKU 2
9.5
7.0
6.0
11.0
8.3
7.2
12.2
9.3
8.1
1500
No.of rows tin[°C] r.v.in[%] Q[kW]
4R
Water
7/12°C
3
2
2
5
3
2
7
4
3
1500
tout[°C] r.v.out[%]∆pW[kPa] Q[kW]
17.7
17.2
16.4
15.4
15.0
14.5
13.6
13.4
13.0
82
78
81
88
84
87
91
89
90
8
5
4
13
8
6
18
11
9
12.4
9.1
7.8
14.7
10.9
9.4
16.5
12.4
10.8
tout[°C] r.v.out[%]∆pW[kPa]
19.8
19.0
18.0
17.4
16.9
16.1
15.5
15.1
14.5
77
73
76
82
78
62
87
83
86
13
8
6
22
13
10
31
19
15
Pipe connection R 1”
Air flow volume [m3/h]
5R
6R
34
32
29
34
32
29
34
32
29
45
40
46
45
40
46
45
40
46
14.5
10.8
9.3
16.9
12.8
11.1
18.7
14.2
12.4
2000
tout[°C] r.v.out[%]∆pW[kPa] Q[kW]
17.5
17.0
16.2
15.0
14.7
14.2
13.3
13.0
12.7
83
79
82
88
85
87
92
89
91
PKU 3
9
5
4
15
9
7
20
12
10
17.5
13.0
11.2
20.8
15.6
13.5
23.2
17.6
15.3
2500
tout[°C] r.v.out[%]∆pW[kPa] Q[kW]
19.0
18.3
17.3
16.5
16.0
15.3
14.6
14.3
13.8
79
75
78
85
81
84
89
86
88
13
8
6
21
13
10
30
18
14
20.2
14.9
12.8
24.2
18.1
15.7
27.3
20.6
17.9
tout[°C] r.v.out[%]∆pW[kPa]
20.1
19.3
18.2
17.6
17.0
16.2
15.7
15.3
14.7
76
72
75
82
78
81
86
82
85
17
10
7
28
17
13
40
24
19
Pipe connection R 1”
2500
Air flow volume [m3/h]
No.of rows tin[°C] r.v.in[%] Q[kW]
4R
Water
7/12°C
1000
5R
6R
34
32
29
34
32
29
34
32
29
45
40
46
45
40
46
45
40
46
22.6
16.7
14.3
23.4
16.7
14.1
26.2
19.0
16.1
3250
tout[°C] r.v.out[%]∆pW[kPa] Q[kW]
18.5
17.9
17.0
17.6
17.2
16.6
15.9
15.6
15.2
80
76
79
85
82
84
89
86
88
12
7
5
14
8
6
20
11
8
26.7
19.7
16.9
27.9
19.9
16.7
31.6
22.8
19.3
4000
tout[°C] r.v.out[%]∆pW[kPa] Q[kW]
19.9
19.1
18.0
18.8
18.3
17.5
17.1
16.7
16.1
77
72
76
81
78
81
86
83
85
16
9
7
20
11
8
28
16
11
30.4
22.3
19.1
32.0
22.7
19.0
36.5
26.3
22.1
tout[°C] r.v.out[%]∆pW[kPa]
20.9
20.0
18.8
19.8
19.2
18.2
18.0
17.6
16.8
Ratings for other modes of operation and refrigerants (ethylene-glycol mixture) available on request.
74
69
74
79
75
78
83
80
83
20
11
9
25
14
10
36
20
15
12 CEILING-MOUNTED AIR-HANDLING UNITS - PKU Series
FREON COOLER
Fin spacing s = 2.5 mm
PKU 1
500
R22
ti = +5°C
Air flow volume [m3/h]
No.of rows tin[°C] r.v.in[%]
34
45
32
40
4R
29
46
34
45
32
40
5R
29
46
34
45
32
40
6R
29
46
Q[kW]
6.5
5.1
4.6
7.2
5.7
5.1
7.7
6.1
5.5
tout[°C]
12.5
12.1
11.7
10.5
10.2
10.0
9.1
8.9
8.8
1000
r.v.out[%]
92
89
91
85
93
94
98
96
97
Q[kW]
10.7
8.4
7.4
12.2
9.6
8.5
13.3
10.5
9.4
tout[°C]
16.2
15.5
14.7
13.9
13.4
12.8
12.2
11.8
11.3
1500
r.v.out[%]
84
79
82
89
85
87
92
89
91
Q[kW]
14.0
10.9
9.6
16.2
12.6
11.2
17.6
14.0
12.5
tout[°C]
18.4
17.6
16.5
16.1
15.4
14.6
14.6
13.7
13.0
r.v.out[%]
78
74
77
84
79
82
88
84
87
PKU 2
1500
R22
ti = +5°C
Air flow volume [m3/h]
No.of rows tin[°C] r.v.in[%]
34
45
32
40
4R
29
46
34
45
32
40
5R
29
46
34
45
32
40
6R
29
46
Q[kW]
16.3
12.7
11.3
18.6
14.6
13.1
20.3
16.0
14.3
tout[°C]
16.0
15.3
14.5
13.6
13.1
12.5
11.9
11.5
11.0
Q[kW]
25.4
19.8
17.5
29.2
22.9
20.4
32.0
25.3
22.6
tout[°C]
17.1
16.3
15.4
14.7
14.1
13.4
13.0
12.4
11.9
2000
r.v.out[%]
84
80
83
89
86
88
93
90
92
Q[kW]
19.7
15.3
13.6
22.8
17.9
15.9
24.7
19.8
17.7
r.v.out[%]
81
77
80
87
83
85
91
87
89
Q[kW]
30.1
23.4
20.7
34.7
27.4
24.3
38.1
30.4
27.2
tout[°C]
17.6
16.8
15.8
15.2
14.5
13.7
13.6
12.8
12.2
2500
r.v.out[%]
80
75
79
86
82
84
90
86
88
Q[kW]
22.7
17.6
15.6
26.2
20.8
18.5
28.8
23.1
20.6
r.v.out[%]
78
73
77
83
79
82
87
84
86
Q[kW]
34.0
26.5
23.5
39.6
31.3
27.8
43.8
34.6
31.2
tout[°C]
18.8
17.9
16.8
16.6
15.6
14.8
14.9
14.0
13.2
r.v.out[%]
77
72
76
83
79
82
87
83
86
PKU 3
2500
R22
ti = +5°C
Air flow volume [m3/h]
No.of rows tin[°C] r.v.in[%]
34
45
32
40
4R
29
46
34
45
32
40
5R
29
46
34
45
32
40
6R
29
46
3250
tout[°C]
18.5
17.7
16.6
16.3
15.4
14.6
14.6
13.7
13.1
4000
tout[°C]
19.7
18.7
17.5
17.5
16.5
15.5
15.8
15.0
14.0
r.v.out[%]
75
70
74
81
76
80
85
81
84
Ratings for other modes of operation, refrigerants or evaporation temperatures available on request.
Inlet and outlet connection sizes depend on cooling capacity and are available on request.
10 SOUND ATTENUATOR FEATURES
SOUND ATTENUATORS
FAN NOISE ABSORPTION BY UNIT CASING
The sound attenuator performance [dB] at a specific frequency
is showed in the following table:
The sound power level of fans LW(A) (“A” scale)
measured in a free field at a distance of d = 1 m can
be read off from the fan diagrams.
Length
[mm]
600
900
Length
[mm]
600
900
Length
[mm]
600
900
63
2
3
63
4
5
63
4
5
125
5
7
PKU 1
Frequency [Hz]
250 500 1000 2000 4000 8000
12
12
19
20
17
11
15
15
23
24
20
15
125
5
9
PKU 2
Frequency [Hz]
250 500 1000 2000 4000 8000
12
12
15
10
7
7
19
20
22
14
10
9
125
5
9
PKU 3
Frequency [Hz]
250 500 1000 2000 4000 8000
12
12
15
10
7
7
19
20
22
14
10
9
The data specified apply to a free air suction and
escape into the ventilating duct.
The fan noise absorption by means of the unit
casing may be calculated according to the formula:
Lw1 (A) = Lw (A) - R
R values (dB) may be found in the table attached.
Noise absorption by means of the unit casing at a
distance of 1 m in front of the unit (according to
DIN 52210):
63
11
125
12
Frequency range [Hz]
250 500 1000 2000 4000 8000
13
15
25
26
26
26
proKLIMA 13
ELECTRICAL DATA 11
ELECTRIC HEATER
Type
Air volume
V[m3/h]
Capacity
Q[kW]
Temperature
rise
∆tZ[°C]
PKU 1
PKU 2
PKU 3
1500
2500
4000
11
17
26
22,0
20,0
19,5
Supply voltage 230 V or 400 V / 50 Hz.
Heaters may be activated in 1 - 6 stages or continuously
(on request).
Installation of other (higher) electric heater power
available on request.
ELECTRIC MOTOR
Type
PKU 1
PKU 2
PKU 3
Electric
power
300 W
1000 W
550 W
2«550 W
No. of
poles
4
2
4
4
Supply voltage
230 V
50 Hz
230 V
50 Hz
230 V
50 Hz
230 V
50 Hz
Mechanical Max. air
Thermal protection temperaprotection
class
ture
DA
IP44
60°C
DA
IP20
40°C
DA
IP44
60°C
DA
IP44
60°C
Max.
current
2,6A
8,5A
6,0A
2«6A
Speed
regulator
type
RVM 3
RT 10
RVM 9
RT 10, RT 12
NOTE: Frequency regulator available (on request).
WIRING DIAGRAM 12
TO THE CABINET
TO THE CHAMBER
STAGE 1
STAGE 2
STAGE 3
Symbols:
FV
VAR
INT
KV
- manual switch
- speed regulator
- switch (ON/OFF)
- fan switch
K1 - time relay
KR 1-4 - heater element contactors
Th - step-by-step thermostat
P
- pressure differential cut-out0
FR 1-4 - heater fuses
BSC - overheat control
(limit thermostat)
STAGE 4
14 CEILING-MOUNTED AIR-HANDLING UNITS - PKU Series
12 TENDER TEXT (example)
Ceiling-mounted air-handling unit, type PKU 3 SP-5, external plastic coating (with ceiling suspension brackets).
Dimensions: WxHxL = 665 x 1440 x 3080 mm
System: CORRIDOR 1. FLOOR
Technical specifications:
EXHAUST (DISCHARGE)
SOUND ATTENUATOR 600 mm long
• flexible connection
• damper (electric-motor drive on/off)
• sound attenuation at 250 Hz
FILTER, class G3
PLATE RECUPERATOR
• with spare inserts
• filter dirt control: inclined pressure gauge 0-500 Pa
• fresh/return air flow volume
V = m3/h
• fresh air temperature/relative humidity tzul/rv = °C/%
• pressure drop on the air side
dpzr = Pa
• return air temperature/relative humidity tzizl/rv = °C/%
• pressure drop on the air side
dpzr = Pa
• heat recovery coefficient
h=%
• with by-pass installed (and droplet eliminator)
ELECTRIC HEATER
• electric heating capacity
Qg = kW
(- inlet/outlet air temp.)
tzul/tziz = °C
• heater actuation: stepwise (,continuously)
HEATER
• heating capacity
• inlet/outlet air temperature
• pressure drop on the air side
• inlet/outlet temperature of medium
• pressure drop on the water side
• design: standard (,epoxy layer)
Qg = kW
tzul/tzizl = °C
dpzr = Pa
twul/twizl = °C
dpw = Pa
WATER COOLER
• cooling capacity
Qh = kW
• inlet air temperature/relative humidity tzul/rv = °C/%
• outlet air temperature/relative humidity tzizl/rv = °C/%
• pressure drop on the air side
dpzr = Pa
• medium: water (30% glycol)
• inlet/outlet temperature of medium
twul/twizl = °C
• pressure drop on the water side
dpw = Pa
• design: standard (,epoxy layer)
• with droplet eliminator (• w/o droplet eliminator)
FREON COOLER
• cooling capacity
Qh = kW
• inlet air temperature/relative humidity tzul/rv = °C/%
• outlet air temperature/relative humidity tzizl/rv = ˚C/%
• pressure drop on the air side
dpzr = Pa
• refrigerant: R22 (R407C,...)
• evaporation temperature
ti = ˚C
• design: standard (,epoxy layer)
• with Droplet eliminator (• w/o droplet eliminator)
FAN UNIT
• air flow volume
V = m3/h
• external pressure drop
dpext = Pa
• total pressure drop
dptot = Pa
• design: standard (,explosion-proof, ...)
• electric motor power
Pm = kW
• protection class: IP54 (,IP57)
• (double-speed electric motor, triple-speed electric
motor)
• design: standard (explosion-proof, tropic, marine)
(• prepared for frequency regulator)
• with RVM 3 speed regulator (• with frequency converter)
MIXING UNIT
dB(A)
proKLIMA 15
Our partners and representatives:
proKLIMA
Manufacture and installation of ventilation,
air-conditioning and heating equipment
Head: Talani 14, HR-10000 Zagreb, Croatia
Office and Factory: Luje NaletiliÊa 10a, HR-10020 Zagreb, Croatia
Phone: +385 1 / 6546-343
Fax: +385 1 / 6546 - 344
Email: proklima@proklima.hr
Internet: www.proklima.hr
PB-PKU03-ENG