12 - OPTIONS
12.2.3.2 - Installation and operation of the heat recovery with partial heat recovery 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.
Main diagram of the partial heat recovery option in a standard system
Heating mode
Cooling mode
AQUACIAT
POWER
ILD ST/HE unit with desuperheater option without hydraulic model
Limit between the AQUACIAT
POWER
ILD ST/HE unit and the system
Typical installation
Legend:
Components of the AQUACIAT
POWER
ILD unit
1- Water-cooled heat exchanger
2- Compressor
3- Desuperheater
4- Air condenser (coils)
5- Expansion valve (EXV)
6- Accessory for limitation of damage in the event of a fire (valve)
7- Electric heater for protecting the desuperheater from freezing (not provided)
8- Insulation for the desuperheater (not supplied)
9- Electrical box for the unit
10- Heating/cooling cycle four-way reversing valve
11- Water inlet on the desuperheater
12- Water outlet on the desuperheater
13- Water heat exchanger water inlet
14- Water heat exchanger water outlet
15- Unit with desuperheater option without hydronic module
16- System heat load
17- Limit between the AQUACIAT
POWER
ILD ST/HE unit and the standard system
System components (installation example)
20- Pump (hydronic circuit for the desuperheater loop)
21- Shut-off valve
22- Desuperheater water flow rate control and balancing valve
23- Accessory for limitation of damage in the event of a fire (valve)
24- Expansion tank
25- Charge or drain valve
26- Air bleed
27- Coil heat exchanger or plate heat exchanger
28- Pressure gauge
29- Flow rate sensor
30- Pump (sanitary hot water circuit)
31- Three-way controller
32- Filter to protect the pump and the desuperheaters
33- Municipal water inlet
34- Domestic hot water outlet
AQUACIAT
POWER
ILD
EN-56
