Hitachi RAI-ECPM - Page 43

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REFRIGERATING CYCLE DIAGRAM
RAI-25NH5A / RAI-35NH5A / RAI-50NH5A
Heating
Outdoor Unit
Indoor Unit
Suction tank
Reversing
valve
Strainer
Strainer
Strainer
Service
valve (
1/4"
)
Service
valve (
3/8"
)
Service
valve (
3/8"
)
Single-ended
union (
3/8"
)
Single-ended
union (
3/8"
)
Single-ended
union (
1/4"
)
Indoor heat
exchanger
Air
Flow
Air
Flow
Indoor heat
exchanger
Single-ended
union (
1/4"
)
Charge port (
1/2"
)
Charge port (
1/2"
)
Service
valve (
1/4"
)
Electric expansion 1
valve
Electric expansion 2
valve
Strainer
Strainer
Strainer
Silencer
(Scroll)
Compressor