Air-to-Water Heat Pump _ 21
Part 1. Monobloc Unit
7. Piping Diagram
Models : AHBW056A0 [HM051M] / AHBW076A0 [HM071M] / AHBW096A0 [HM091M]
AHBW126A0 [HM121M] / AHBW146A0 [HM141M] / AHBW166A0 [HM161M]
AHBW128A0 [HM123M] / AHBW148A0 [HM143M] / AHBW168A0 [HM163M]
Category Symbol Meaning
PCB
Connector
Remarks
Unit
Th1 Condenser temperature sensor CN_TH4
- Discription is expressed based on
cooling mode.
Th2
Outlet evaporator temperature
sensor
CN_PIPE/OUT
- Discription is expressed based on
cooling mode
Th3
Inlet evaporator temperature
sensor
CN_PIPE/IN
Th4
Compressor suction pipe
temperature sensor
CN_TH3
(MAIN PCB)
- Th4 and Th5 are connected at 4 pin
type connector CN_TH3 (MAIN PCB)
Th5
Compressor discharge pipe
temperature sensor
Th6 Condenser temperature sensor
CN_TH2
(MAIN PCB)
- Description is expressed based on
cooling mode
- Th6 and Th7 are connected at 4 pin
type connector CN_TH2 (MAIN PCB)
TH7 Air temperature sensor(Outdoor)
Th8
Entering water temperature
sensor
CN_TH3
(IDU PCB)
- Th8, Th9 and Th10 are connected
at 6 pin type connector
CN_TH3 (IDU PCB)
Th9 Interim water temperature sensor
Th10 Leaving water temperature sensor
Th11 Remote air temperature sensor CN_ROOM
- Optional accessory (sold separately)
- Model: PQRSTA0
EXP/TANK Expansion tank (no connector)
- Absorb volume change of heated
water
Electric
Heater &
Tank
Electric Heater
CN_HEATER 1
CN_HEATER 2
- Heating capacity is divided into two
level : partial capacity by
HEATER 1 and full capacity by
HEATER 1 + HEATER 2.
- Operating power(230V AC 50Hz) of
HEATER 1 and HEATER 2 are
supplied by external power source via
magnetic switch connector and ELB.
EEV Electronic Expansion Valve CN_EEV1
W/Pump_1 Internal water pump
CN_W/PUMP(A)
- Operating power of internal water
pump is supplied by the connector
F/S Flow switch (no connector)
Strainer Strainer (no connector)
- Filtering and stacking particles inside
circulating water
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