Hitachi RAM-55QH4, Service Manual

Page: 64 / 109

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REFRIGERATING CYCLE DIAGRAM RAM-55QH4
Heating
Outdoor Unit
Indoor Unit
Suction tank
ø
12.7
ø
12.7
ø
12.7
ø
12.7
ø
12.7
ø
8
ø
12.7
ø
6.35
ø
6.35
ø
6.35
ø
6.35
ø
6.35
ø
6.35
ø
6.35
ø
6.35
ø
12.7
ø
12.7
ø
12.7
ø
12.7
ø
9.52
ø
9.52
Re
versing
valv
e
Str
ainer
Str
ainer
Str
ainer
Ser
vice
valv
e (
1/4"
)
Ser
vice
valv
e (
3/8"
)
Ser
vice
valv
e (
3/8"
)
Single-ended union (
3/8"
)
Single-ended union (
3/8"
)
Single-ended union (
1/4"
)
Indoor heat exchanger
Air Flo
w
Air Flo
w
Indoor heat exchanger
Single-ended union (
1/4"
)
Charge por
t (
1/2"
)
Charge por
t (
1/2"
)
Ser
vice
valv
e (
1/4"
)
Electr
ic e
xpansion 1
valv
e
Electr
ic e
xpansion 2
valv
e
Str
ainer
Str
ainer
Str
ainer
Silencer
(Scroll)
Compressor