M08S40E15-01
WDAT-SL3 FC 200.2-580.2
45
10.3 Partial energy recovery
A configuration which enables the production of hot water free-of-charge while operating in the cooling mode, thanks to the partial recovery
of condensation heat that would otherwise be rejected to the external heat source.
The maximum capacity available from the partial recovery is equal to the 15% of the rejected heating capacity (cooling ca compressor
power input)
When the temperature of the water to be heated is particularly low, it is wise to insert a flow-rate control valve into the system water circuit,
in order to maintain the temperature at the recovery output at above 35°C and thus avoid the condensation of the refrigerant into the partial
energy recovery device.
The recovery exchanger must be always maintained full of water
The lack of water amplifies the noise generated by the operation
D - Partial recovery device
1.
Internal
exchanger
2.
Compressors
3.
Recovery
exchanger
4.
External
exchanger
5. Electronic expansion valve
TW in chilled water inlet
TW out chilled water outlet
RW in - Recovery water inlet
RW out - Recovery water outlet
T - Temperature probe
PD - Differential pressure switch
AE Outdoor air
When the temperature of the water to be heated is particularly low, it is wise to insert a flow-rate control valve into the system water circuit,
in order to maintain the temperature at the recovery output at above 35°C and thus avoid the condensation of the refrigerant into the partial
energy recovery device.
UNIT
QAB
QB
QB
QA
QAB
V
M
