Refrigerant Circuit - Fujitsu ASU18RLB Technical Manual

3.

REFRIGERANT CIRCUIT

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MODEL : AOU18RLB, AOU24RLB
Muffler
Th
D
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.)
PI
Refrigerant pipe diameter
Liquid: 1/4" (6.35 mm)
Gas: 1/2" (12.70 mm)
Heat exchanger
(INDOOR)
3-Way
valve
Muffler
Heat exchanger
(OUTDOOR)
- (02 - 04) -
Th
PI
Th
R
Expansion valve
Th
HO
Th
O
2-Way
valve
Receiver
Strainer
Strainer