SiAU18-715
Refrigerant Circuit 65
Part 4
Refrigerant Circuit
1. Refrigerant Circuit .................................................................................66
1.1 Outdoor Units .........................................................................................66
1.2 BP Units .................................................................................................68
2. Functional Parts Layout ........................................................................69
2.1 Outdoor Units .........................................................................................69
3. Refrigerant Flow for Each Operation Mode...........................................70
3.1 Cooling Operation ..................................................................................70
3.2 Heating Operation ..................................................................................71
3.3 Cooling Oil Return Operation .................................................................72
3.4 Heating Oil Return Operation & Defrost Operation ................................73
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