Giatsu WD2N8B Serie Manuel De L'utilisateur Et D'installation page 82

9 OVERVIEW OF THE UNIT
9.1 Main components
9.1.1 Hydraulic module
1
2
3
5.4
5.3
Code Assembly unit
Flow switch
1
Automatic air purge valve
2
3 Expansion vessel
Pressure relief valve
4
Temperature sensor
5
Plate heat exchanger
6
7 Pump
Water inlet
8
Water outlet
9
Explaination
Detects water flow rate to protect compressor and water pump
in the event of insufficient water flow.
Remaining air in the water circuit will be automatically
removed from the water circuit.
Balances water system pressure.
Prevents excessive water pressure by opening at 3 bar and
discharging water from the water circuit.
Four temperature sensors determine the water and refrigerant
temperature at various points in the water circuit .
5.1 -TW-out; 5.2 -Tw-in; 5.3 -T2; 5.4 -T2B
Transfer heat from the refrigerant to the water.
Circulates water in the water circuit.
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8
9
4
5.1
6
7
5.2