2.3 Unit data KWK 535-725 -ZW
Series
KWK 535
ZW
KWK 595
ZW
KWK 725
ZW
Operating mode
Chilled water units for wall and ceiling
mounting, 2-conductor version
Nominal cooling output
1)
kW
5.35
5.92
7.24
Nominal heat capacity
2)
kW
5.77
6.27
7.65
Application area (room volume), approx.
3)
m
3)
180
190
230
Operating range - indoor unit
°C
+15 to +35
Air flow volume per stage
m
3
/h
430/610/780 420/630/870 450/670/920
Sound pressure level per stage
3)
dB (A)
26/34/42
24/33/43
24/33/43
Sound power level per stage
dB (A)
34/42/50
32/41/51
32/41/51
Power supply
V/Ph/Hz
230/1~ /50
Enclosure class
IP
X0
Electrical rated power consumption
1)
W
107
120
139
Electrical rated current consumption
1)
A
0.47
0.52
0.60
Operating medium
max. 35% ethylene glycol, max. 35% pro-
pylene glycol
Operating limits, medium - cooling
°C
+4 to +18
Operating limits, medium - heating
°C
+35 to +80
Operating pressure, medium, max.
kPa
1500
Nominal flow rate, medium - cooling
1)
m
3
/h
0.92
1.02
1.24
Nominal flow rate, medium - heating
2)
m
3
/h
0.99
1.08
1.31
Rated pressure drop, internal - cooling
1)
kPa
22.6
23.4
Rated pressure drop, internal - heating
2)
kPa
24.3
24.0
24.8
Medium connection, inlet
Inches
1/2
Medium connection, outlet
Inches
1/2
Medium volume
l
1.7
2.0
Condensate drainage connection
mm
20
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