EN/10.2021/i04 © STULZ S.p.A. – all rights reserved
WLA CompACT - TRANSLATIoN oF oRIGINAL INSTRUCTIoNS
WLA CompACT - TRANSLATIoN oF oRIGINAL INSTRUCTIoNS
6. Technical data
6.1.
Application limits
The COSMOTEC WLA Compact chillers have been designed to store and operate within the limits
described in this paragraph.
The warranty becomes void and null immediately if these limits are not complied with.
Contact the manufacturer if the temperature of the fluid to be cooled is required to be outside the
defined limits.
DWT - Water supply temperature [°C] con ∆T = 5 K
A
T - Ext
ernal
air
temper
atur
e [°C]
opERATING LImITS
Standard work area with
water (optional)
Special work area.
Contact Cosmotec.
Only with anti-freeze
mixture (glycol)
Special work area.
Contact Cosmotec.
Standard unit + ON-OFF low
temperature device (optional)
Standard unit + Modulating low
temperature device (optional)
pure water values at 50Hz
WLA02
WLA03
WLA05
WLA08
WLA10
WLA13
Water flow [l/min]
4
4,6
7,2
9,3
11,8
14,5
Load loss [kPa]
12
15,3
10,5
16,4
25,0
36,3
INFoRmATIoN
The maximum and minimum flow rate values have been calculated considering a temperature
difference between evaporator inlet and outlet equal to 5°C. The operation of the heat
exchanger is guaranteed if these limits are respected.
Power supply: 230/1/50
Voltage: 230 V ± 5%
(1)
Frequency: 50 Hz ± 1%
Power supply: 230/1/60
Voltage: 230 V ± 5%
(1)
Frequency: 60 Hz ± 1%
Power supply: 400/3/50
Voltage: 400 V ± 5%
(1)
Frequency: 50 Hz ± 1%
Power supply: 460/3/60
Voltage: 460 V ± 5%
(1)
Frequency: 60 Hz ± 1%
Storage limit temperature: min -10°C / max + 60°C
26
26
-10
0
10
20
30
40
50
-5
0
5
10
15
20
25
30
-5
2,5
15
1
13
}
}
-10
0
10
20
30
40
50
-5
0
5
10
15
20
25
30
-5
2,5
15
1
13
-10
0
10
20
30
40
50
-5
0
5
10
15
20
25
30
-5
2,5
15
1
13
