3.
REFRIGERANT CIRCUIT
MODEL
: AOU9RLFFH, AOU12RLFFH
Th
D
Muffler
Acccumlator
Cooling
Heating
Th
: Thermistor (Discharge Temp.)
D
Th
: Thermistor (Outdoor Temp.)
O
Th
: Thermistor (Heat Exchanger Out Temp.)
HO
Th
: Thermistor (Room Temp.)
R
Th
: Thermistor (Pipe Temp.)
P
Refrigerant pipe diameter
Liquid: 1/4" (6.35 mm)
Gas: 3/8" (9.52 mm): 9/12RLFFH
Heat exchanger
3-Way
valve
Muffler
4-Way valve
Heat exchanger
( OUTDOOR )
- (02 - 03) -
( INDOOR )
Th
P
Th
R
Th
HO
Th
O
2-Way
valve
Strainer
Expansion valve
Strainer