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4. Refrigerant circuit
4-1. Models: RD16AZ30AJHUA, RD16AZ36AJHUA, and
RD16AZ48AJHUA
Pressure
switch
Th
D
Th
C
Th
C
Th
D
Th
HM
Th
O
Th
HO
Th
PI
Th
R
4-1. Models: RD16AZ30AJHUA, RD16AZ36AJHUA, and RD16AZ48AJHUA
3-way
valve
4-way valve
: Cooling
: Heating
: Thermistor (Compressor temperature)
: Thermistor (Discharge temperature)
: Thermistor (Heat exchanger middle temperature)
: Thermistor (Outdoor temperature)
: Thermistor (Heat exchanger out temperature)
: Thermistor (Pipe temperature)
: Thermistor (Room temperature)
Heat exchanger
(INDOOR)
Th
Th
R
Heat exchanger
(OUTDOOR)
Th
HM
Th
O
- 79 -
3-way
valve
PI
Strainer
Expansion valve
Strainer
Th
HO
4. Refrigerant circuit
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