Fujitsu ASU18RLB Technical Manual page 46

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MODEL : AOU30RLXB, AOU36RLXB
Muffler
Pressure
switch
Th
D
Th
C
Cooling
Heating
Th Thermistor (Compressor Temp.)
C
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: 3/8" (9.52 mm)
Gas: 5/8" (15.88 mm)
3-Way Heat exchanger
valve (INDOOR)
(Large)
4-Way valve
Heat exchanger
(OUTDOOR)
- (02 - 05) -
Th
PI
Th
R
Strainer
Expansion valve
Strainer
Th
HO
Th
O
3-Way
valve
(Small)