052 053
_TROUBLE SHOOTING GUIDE BOOK _
Hydro Kit
1. Medium Temperature
Water
Inlet
Water
Outlet
GAS
SIDE
LIQUID
SIDE
Plate Heat
Exchanger
EEV
Th2
Th3
Flow
Switch
Th4
Th5
S
Strainer
Bypass
Valve
Check
Valve
Strainer
Symbol Description PCB Connector Remarks
Th1 Air Temperature Sensor CN-ROOM
*Optional accessory
(being sold separately)
*Not shown in diagram
Th2 Liquid Side Temperature Sensor CN-PIPE/IN
Th3 Gas Side Temperature Sensor CN-PIPE/OUT
Th4 Water Inlet Temperature Sensor
CN-TH3
*Th4 and Th5 are connected to 4 pin
type connector CN-TH3
Th5 Water Outlet Temperature Sensor
Symbol Description PCB Connector Remarks
Th1 Air Temperature Sensor CN-ROOM
*Optional accessory
(being sold separately)
*Not shown in diagram
Th2 Liquid Side Temperature Sensor CN-PIPE/IN
Th3 Gas Side Temperature Sensor CN-PIPE/OUT
Th4 Water Inlet Temperature Sensor
CN-TH3
*Th4 and Th5 are connected to 4 pin
type connector CN-TH3
Th5 Water Outlet Temperature Sensor
2. High Temperature
Hydro Kit (For High Temperature)
Th2
Th3
Th6
Th7
Th5
Th4
Strainer
Strainer
Strainer
Outdoor Unit
Liquid
Side
Water Inlet
Water Tank
Water Outlet
Gas
Side
VEEVEE
R134a CYCLE
Flow Switch
Plate Heat
Exchanger
Plate Heat
Exchanger
Low Pressure
Sensor
High Pressure
Sensor
Inv.
Compressor
Accum.
(Sub)
Symbol Description PCB Connector Remarks
Th1 Air Temperature Sensor
CN-ROOM
(Main PCB)
*Optional accessory
(being sold separately)
*Not shown in diagram
Th2 Liquid Side Temperature Sensor
CN-PIPE/IN
(Main PCB)
Th3 Gas Side Temperature Sensor
CN-PIPE/OUT
(Main PCB)
Th4 Water Inlet Temperature Sensor
CN-TH3
(Main PCB)
*Th4 and Th5 are connected to
4 pin type connector CN-TH3(Black)
Th5 Water Outlet Temperature Sensor
Th6 Suction Pipe Temperature Sensor
CN-TH3
(Inverter PCB)
* Th6 and Th7 are connected to
4 pin type connector CN-TH3(Red)
Th7 Discharge Pipe Temperature Sensor
Th8 Inside Air Temperature Sensor
CN-TH2
(Inverter PCB)
*Not shown in diagram
Basic PartBasic PartBasic PartBasic Part
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