Carrier AQUASNAP 30RBP Series - Page 54

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12.2.3.2 - Installation and operation of the heat recovery with desuperheater option
The units with the desuperheater option are supplied with one plate heat exchanger per refrigerant circuit.
When installing the unit, the heat recovery plate heat exchangers must be insulated and protected against frost if required.
Refer to the main diagram below for the main components or functions associated with a unit with desuperheater option in a
standard system.
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3
3
30RBM/30RBPunitwithdesuperheateroptionwithouthydraulicmodule
Typical installation
Borderbetween30RBM/30RBPunitandthesystem
28
Key
 
1 Evaporator
2 Compressor
3 Desuperheater (plate heat exchanger)
4 Air condenser (coils)
5 Expansion valve (EXV)
6 Damagelimitationaccessoryincaseofare(reliefvalve)
7 Electric heater to protect the desuperheater against frost (not supplied)
8 Desuperheater insulation (not supplied)
9 Unitcontrolpanel
10 NA
11 Desuperheater water inlet
12 Desuperheater water outlet
13 Evaporator water inlet
14 Evaporator water outlet
15 Unit with desuperheater option without hydraulic module
16 System heat load
17 Borderbetweenthe30RBM/30RBPunitandthetypicalinstallation
 
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(safetyvalve)
24 Expansion vessel
25 Charge or drain valve
26 Air purge
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