WATER-COOLED SCREW CHILLERS 30XWH 254-1762
Operating limits
Units with option 150
30XW--/30XWH-/30XW-P/30XWHP
Minimum
Maximum
Entering temperature at start-up
-
35.0°C
Leaving temperature during operation
3.3°C*
15.0°C
Entering/leaving temperature difference at full load
2.8 K
11.1 K
Entering temperature at start-up
13.0°C**
-
Leaving temperature during operation
23.0°C**
63.0°C
Entering/leaving temperature difference at full load
2.8 K
11.1 K
Evaporator
Condenser
For low-temperature applications, where the leaving water temperature is below 3.3°C, a frost protection solution must be used. Please refer to option 5 and option 6.
For lower condenser temperatures, a water flow control valve must be used at the condenser (two or three-way valve). Please refer to option 152 to ensure the correct condensing
temperature.
Option 150
50
45
40
35
30
25
20
15
0
5
10
15
20
70
65
60
55
HEATING
55
Condenser leaving water temperature, °C
Condenser leaving water temperature, °C
Standard units
50
45
40
35
30
25
20
0
5
10
15
20
Evaporator leaving water temperature, °C
Evaporator leaving water temperature, °C
From approx. 45% to full load
From approx. 60% to full load
Part load limit approx. 35%
Part load limit approx. 50%
Minimum load limit approx. 15%
AIR TREATMENT
*
**
CONTROLS
Minimum load limit approx. 30%
C
A
R
R
I
E
R
2
0
1
6
/
2
0
1
7
553