Airwell AW-WHPMA18-H93, Installation Manual

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22
1
2
6
3
4
5
T2B
Tw_out
Tw_in
12.1
12.2
11
10
T2
7
9
8
9.3 Electronic control box
Note:The picture is for reference only, please refer to the actual product.
Inverter module
（
PCB A
）
Main control
board of
hydraulic module
Main control
board of unit
(PCB B)
Filter board
（
PCB C
）
Assembly unit Coding
1
2
3
4
5
6
7
8
9
10
11
12.1
12.2
Air purge valve
Expansion vessel
Refrigerant gas connection
Temperature sensors
Refrigerant liquid connection
Manometer
Flow switch
Circulation pump
Plate heat exchanger
Water outlet connection
Pressure relief valve
Water inlet connection
Explaination
Remaining air in the water circuit will be automatically removes
air from the water circuit.
Balances water system pressure. (Expansion vessel volume: 8L)
Four temperature sensors determine the water and refrigerant
temperature at various points in the water circuit.(T2B; T2; Tw_out; Tw_in)
Provides water circuit pressure readout.
Detects water flow rate to protect compressor and water pump
in the event of insufficient water flow.
Circulates water in the water circuit.
Transfer heat from the refrigerant to the water.
Prevents excessive water pressure by opening at 3 bar and
discharging water from the water circuit.
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/
/
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Electrical heating tape
Electrical heating tape
For heating plate heat exchanger
For heating connection pipe of expansion vessel
Back view Front view
9.2.2 Hydraulic system diagram