Fujitsu AUYG18LVLB Design & Technical Manual page 157

4. Refrigerant circuit
4-1. Models: AOYG72LRLA and AOYG90LRLA
¢ Twin type
Pressure
switch
Muffler
: Thermistor (Compressor temperature)
: Thermistor (Discharge temperature)
: Thermistor (Heat Exchanger Out temperature)
: Thermistor (Outdoor temperature)
4-1. Models: AOYG72LRLA and AOYG90LRLA
Pressure
Check Valve
Pressure sensor
(High)
4-WAY
Pressure
Valve
sensor
Strainer
Expansion
Valve
Ø15.88 mm (5/8 in) × 2
Refrigerant pipe
Ø25.40 mm (1 in)
3-WAY
Valve
(Low)
3-WAY
Valve
Refrigerant pipe
Ø12.70 mm (1/2 in)
Ø9.52 mm (3/8 in) × 2
- 149 -
: Thermistor (Room temperature)
: Thermistor (Pipe temperature)
4. Refrigerant circuit