12.2.4.2 - Installation and operation of the heat recovery with desuperheater option
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.
Typical installation diagram of units with the desuperheater option
//
//
B
P
L
L
C
D
D
E
H
F
F
F
I
G
K
K
M
O
N
F J
F
P
B
Desuperheated
discharge gas
Circuit A
Desuperheated
discharge gas
Circuit B
Integrated in the unit
Pump control if desuperheater option and energy management module configured (wiring by the installer, refer to the unit wiring diagrams)
Key
Component installed on the unit
B
Plate heat exchanger (desuperheater condenser)
Installation components (installation example)
C
Flow rate controller
D
Safety valve
E
Water outlet temperature sensor kit (not supplied and not part of the unit control)
F
Shut-off valve
G
Three-way valve (essential for low water inlet temperature)
H
Water inlet temperature sensor kit (not supplied and not part of the unit control)
I
Filter to protect the pump and the heat recovery condenser
J
Desuperheater hydraulic circuit pump
K
Water circuit bleed or charging valve
L
Air vent
M
Expansion tank
N
Pressure gauge
O
Hot water tank
P
Desuperheater water flow balancing and control valve
12 - OPTIONS
EN-65
AQUACIAT
POWER
™ LD/ILD
