Glow-worm Clearly Heat Pumps 5kW - Manual (Page 7)

0020096879_01 - 06/10 - Glow-worm
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INTRODUCTION
2.4 Concept of operation
A heat pump (HP) is a thermodynamic machine which transfers
heat from one location to another. To do so, it employs the
characteristics of a refrigerant fluid.
The system is composed of the following circuits:
- The refrigeration circuit which transfers heat to the water
circuit following the evaporation, compression, condensation
and expansion of the fluid.
- The heating circuit.
2.4.1 In heating mode
1
2
6 4 5
3
Key
1 Reverse cycle valve
2 Tubular heat exchanger
3 Ventilating fan
4 Compressor
5 Pressure regulator
6 Exchanger with plates
2.4.2 In defrosting mode
1
2
6 4 5
3
Key
1 Reverse cycle valve
2 Tubular heat exchanger
3 Ventilating fan
4 Compressor
5 Pressure regulator
6 Exchanger with plates
2.4.3 Min. and Max. temperature settings in
heating
A
B
10°
20°
45
25
55
30°
40°
50°
60°
-5° 0° 5° 10° 15° 20° 25° 30° 35°
1
2
Key
1 Max. temperature
2 Min. temperature
A Water temperature
b Air temperature