: Thermistor (Room temperature)
: Thermistor (Pipe temperature)
: Thermistor (Compressor temperature)
: Thermistor (Discharge temperature)
: Thermistor (Outdoor temperature)
: Thermistor (Heat Exchanger Out temperature)
Ø9.52 mm (3/8 in) × 2
Ø12.70 mm (1/2 in)
Refrigerant pipe
Ø25.40 mm (1 in)
Refrigerant pipe
Ø15.88 mm (5/8 in) × 2
72 model: Ø12.70 mm (1/2 in) × 2
90 model: Ø15.88 mm (5/8 in) × 2
72 model: Ø6.35 mm (1/4 in) × 2
90 model: Ø9.52 mm (3/8 in) × 2
Pressure
switch
Pressure sensor
(High)
Strainer
Pressure
sensor
(Low)
Muffler
Expansion
Valve
3-WAY
Valve
4-WAY
Valve
Pressure
Check Valve
3-WAY
Valve
4-1. Models: AOYG72LRLA and AOYG90LRLA 4. Refrigerant circuit