Refrigerant Circuit; Model: Aoyg18Kata - Fujitsu ABYG22KRTA Design & Technical Manual

4. Refrigerant circuit

4-1. Model: AOYG18KATA

Muffler
Th
D
Cooling
Heating
Th
: Thermistor (Discharge temperature)
D
Th
: Thermistor (Outdoor temperature)
O
Th
: Thermistor (Heat exchanger out temperature)
HO
Th
: Thermistor (Heat exchanger middle temperature)
HM
Th
: Thermistor (Room temperature)
R
Th
: Thermistor (Pipe temperature)
PI
4-1. Model: AOYG18KATA
Heat exchanger
3-way
valve
Muffler
4-way valve
Heat exchanger
(OUTDOOR)
Th
HM
- 74 -
(INDOOR)
Th
PI
Th
R
Th
HO
Th
O
2-way
valve
Strainer
Expansion valve
Strainer
4. Refrigerant circuit