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THERMISTORS INSTALLATION
12
THERMISTORS INSTALLATION
Pipe thermistors Installation
Location of the pipe thermistors
A correct installation of the thermistors is required to ensure a good operation:
1
Pipe In
: Install the thermistor at the refrigerant inlet of the heat exchanger as close as possible to the
heat exchanger.
2
Pipe Out
: Install the thermistor at the refrigerant outlet of the heat exchanger as close as possible to
the heat exchanger.
3
Water In
: Install the thermistor at the water inlet of the heat exchanger as close as possible to the heat
exchanger.
4
Water Out
: Install the thermistor at the water outlet of the heat exchanger as close as possible to the
heat exchanger.
Evaluation must be done to check if the evaporator is protected against freeze-up. Execute test
operation and check for freeze-up.
1
Pipe In (Suction Pipe)
2
Pipe Out (Discharge Pipe)
3
Water In (Water Inlet Pipe)
4
Water Out (Water Outlet Pipe)
2
1
Heat
Exchanger
4
Heating Mode /
Heat Pump
3
Refrigerant Flow
Cooling / Defrost
Heating
2
Cooling Mode
1
Heat
Exchanger
3
4
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