Typical installation diagram of units with the RQ/RQP desuperheater option Cooling mode
Heating mode Cooling mode
1
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7
7
8
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1
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7
8
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2
RQ/RQP unit with desuperheater option without hydraulic module
Border between the RQ/RQP unit and the system
Typical installation
28
28
Key
RQ/RQP unit components
1 Heat exchanger (multi-pipe type)
2 Compressor
3 Desuperheater (plate heat exchanger)
4 Air-cooled exchanger (coils)
5 Expansion valve (EXV)
6 Damage limitation accessory in case of a re
7 Electric heater to protect the desuperheater against frost (not supplied)
8 Desuperheater insulation (not supplied)
9 Unit electrical cabinet
10 Heating/cooling cycle four-way reversing valve
11 Desuperheater water inlet
12 Desuperheater water outlet
13 Water type heat exchanger water inlet
14 Water type heat exchanger water outlet
15 Unit with desuperheater option without hydraulic module
16 System heat load
17 Border between the RQ/RQP unit and the typical installation
Installation components (installation example)
20 Pump (desuperheater loop hydraulic circuit)
21 Shut-o valve
22 Desuperheater water ow balancing and control valve
23 Damage limitation accessory in case of a re
24 Expansion tank
25 Charging or drain valve
26 Air vent
27 Heat exchange coil or plate heat exchanger
28 Pressure gauge
29 Flow switch
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
12 - OPTIONS
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