R32 Split - Air to Water Heat Pump 20220105
11
1.2 Air to water heat pump
Tsolar Solar panel temp. senso
Twt Temperature of domestic hot water tank
Tici Plate heater liquid temp. sensor
Tico Plate heater gas temp. sensor
Tai Room temp. sensor
Two_A Plate heater outlet temp. senso
Two_B Hydronic box outlet temp. sensor
Twi H
dronic box inlet temp. senso
Twt_BT Balance tank temp. sensor
Twi_UFH Floor heating inlet temp. sensor
P1 Water pump for h
dronic box
P2 Water pump for outside
P3 Water pump for floor heating
P4 Water pump for hot water tank
P5 Water pump for Solar
MV1 Three way valve
MV2 Two wa
valve
R32 Split Type Air Source heat pump unit is an integrated airtowater system which can supply heating,
cooling and domestic hot water. The outdoor heat pump system extracts heat from the outdoor air and transfers
this heat through refrigerant piping to the plate heat exchanger in the hydronic box. The heated water in the
hydronic box circulates to low temperature heat emitters (underfloor heating loops or low temperature radiators)
to provide heating, and to the domestic hot water tank to provide domestic hot water. The 4way valve in the
outdoor unit can reverse the refrigerant cycle so that the hydronic box can provide chilled water for cooling
using fan coil units
The heating capacity decreases under low ambient temperature. Backup electric heater is optional to
provide additional heating capacity for user during extremely cold weather when the heat pump capacity is
insufficient.
MV3 Three-wa
valve
EH1 E-heater in hydronic box
EH2 E-heater in tank
LPS Anti-frezze low pressure switch
FS Float switch
RC Wired controller
HU H
dronic box
WHE Plate heater exchan
er
HWT Domestic hot water tank
STC Solar panels
HS auxiliary heat source (Gas boiler)
BT Balance tank
UFH Floor heating
RDT Heatin
radiato
FCU Fan coil unit
RT Room thermostat