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The 30RQS/RQBSY units with the desuperheater option are
supplied with one heat exchanger per refrigerant circuit.
During the unit installation the heat reclaim plate heat
exchangers must be insulated and frost protected, if required.
Please refer to the typical installation diagram below for the
main components and functions of the 30RQS/RQSY units
with the desuperheater option.
30RQS/RQSY unit with desuperheater option without hydfronic module
Typical installation
1 Evaporator
2 Compressor
3 Desuperheater (plate heat exchanger)
4 Air condenser (coils)
5 Expansion valve (EXV)
7 Electric heater to protect the desuperheater against frost (not supplied)
10 NA
11 Desuperheater water inlet
12 Desuperheater water outlet
13 Evaporator water inlet
14 Evaporator water outlet
16 System heat load
20 Pump (hydronic circuit of the desuperheater loop)
24 Expansion tank
25 Charge or drain valve
26 Air purge
27 Heat exchange coil or plate heat exchanger
30 Pump (domestic hot water circuit)
31 Three-way valve + controller
32 Filter to protect the pump and the desuperheaters
33 District water supply
34 Domestic hot water outlet
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