51
Operating range
Size 182 222 262 302 352
External exchanger
Max entering air temperature 1 °C 45 45 45 45 45
Max entering air temperature 2 °C 48 48 48 48 48
Min. entering air temperature 3 °C -10 -10 -10 -10 -10
Min. entering air temperature 4 °C -7.0 -7.0 -7.0 -7.0 -7.0
Internal exchanger
Max inlet water temperature °C 27 27 27 27 24
Min. leaving water temperature 5 °C 5.0 5.0 5.0 5.0 5.0
Min. leaving water temperature 6 °C -7.0 -7.0 -7.0 -7.0 -7.0
Data referred to the following conditions:
Internal exchanger water temperature = 12/7°C
Entering eExternal exchanger air temperature = 35°C
1. unit at full load
2. Unit with automatic staging of the compressor capacity.
3. unit at full load
4. Part-load unit
5. Standard unit and external exchanger entering air 35 °C (no ‘Low water temperature (Brine)’ conguration).
6. Unit in ‘Low water temperature (Brine)’ conguration. Fluid processed with 40% ethylene glycol
Graph referred to size 352
The detail of each size is shown in tabular date.
Ta (°C) = entering external exchanger air temperature (dry bulb).
To (°C)= leaving internal exchanger water temperature
1. Standard unit:(no “Liquid low temperature” conguration)
2. Operation eld extension for unit in ‘Low water temperature
(Brine)’ conguration (40% ethylene glycol).
3. Unit with automatic staging of the compressor capacity.
4. Unit at full-load with air ow automatic modulation
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