37
GENERAL INFORMATION
ENGLISH
Description
- For 4 Series
<Inside of Hydrosplit Type>
<Water Side>
<Refrigerant Side>
: Cooling
: Heating
EEV1
<Outdoor unit>
EEV3
(Inj.EEV)
S2
S6
S5
S7
S10
Pressure
Sensor
Pressure
Sensor
Expansion Tank
Relief
valve
Strainer
Flow
Sensor
Air Vent
Inv
. Comp
S3
S4
Accumulator
Pressure
Switch
[PHE]
S11
S17
A1
S19
S12
Water
Out
Water In
Air Vent
Backup
Heater
S13
Accessory
UN36A (5, 7, 9 kW)
UN60A (12, 14, 16 kW)
Category
Symbol
Meaning
PCB Connector
Refrigerant
side
S1
PHEX liquid temperature sensor
CN_PIPE_IN
S2
Outdoor-HEX middle temperature sensor
CN_MID
S3
Compressor-discharge pipe temperature sensor
CN_DISCHARGE
S4
Compressor-suction pipe temperature sensor
CN_SUCTION
S5
Outdoor-HEX temperature sensor
CN_C_PIPE
S6
Outdoor air temperature sensor
CN_AIR
S7
Compressor-injection pipe temperature sensor
CN_VI_IN
EEV1
Electronic Expansion Valve (Heating/Cooling)
CN_EEV1
EEV2
Electronic Expansion Valve (Injection)
CN_EEV_MAIN
Water Side
S12
Outlet water temperature sensor
CN_WATER_OUT
S11
Inlet water temperature sensor
CN_WATER_IN
S13
Backup heater outlet sensor
CN_TH3
S17
Flow sensor
CN_F_SENSOR
S19
Water pressure sensor
CN_H20_PRESS
A1
Main Water Pump
CN_PUMP_A1
CN_MOTOR1
A8
Electric backup heater(1Ø, Optional accessory)
CN_HEATER_PCB
A9
Electric backup heater(3Ø, Optional accessory)
HEATER1