16
Evaporator leaving water temperature, °C
1. Evaporator ∆T = 4 K max. - condenser ∆T = 5 K
2. Operating range applicable for full and reduced load
3. At full load with a condenser entering water temperature below 20°C, a three-way valve must be used to maintain the correct condensing temperature.
C Unit operating with a condensing pressure control with an analogue water control valve.
For transient operating modes (start-up and part load), the unit can operate down to a condenser water temperature of 13°C.
D Operation permitted, but performances is not optimized
4.5.3 - Evaporator water flow (l/s) for 35% ethylene glycol
8.0 15.7
10.6 21.3
12.4 25.1
14.5 28.1
15.6 33.0
20.5 38.0
21.0 39.7
24.1 48.3
29.6 62.0
30.2 63.0
* Based on a Reynolds number of 4000
** Based on a water velocity of 3.6 m/s
Evaporator water flow (l/s) for 30% propylene glycol
11.1 15.7
14.2 21.3
16.7 25.1
19.1 28.1
21.1 33.0
25.1 38.0
27.4 39.7
32.3 48.3
40.0 62.0
40.6 63.0
Condenser entering water temperature, °C
Condenser entering water temperature, °C
Evaporator leaving water temperature, °C
50
48
44
20
15
13
D
C
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