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Hitachi RAS-18SX8 Manuel De Maintenance page 117

REFRIGERATING CYCLE DIAGRAM
MODEL RAS-18SX8 / RAC-18SX8
COOLING CYCLE
φ 12.7
HEATING CYCLE
φ 12.7
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OUTDOOR UNIT
φ 12.7
φ 9.52
φ 8.0
Reversing
valve
φ 6.35
φ 6.35
φ 6.35
φ 9.52
φ 12.7
φ 6.35
Electric
expansion
φ 6.35
valve
φ 6.35
φ 6.35
φ 6.35
φ 6.35
φ 6.35
φ 6.35
φ 6.35
φ 4.76
φ 6.35
OUTDOOR UNIT
φ 12.7
φ 9.52
φ 8.0
φ 6.35
φ 6.35
Reversing
valve
φ 6.35
φ 9.52
φ 12.7
φ 6.35
Electric
expansion
φ 6.35
valve
φ 6.35
φ 6.35
φ 6.35
φ 6.35
φ 6.35
φ 6.35
φ 6.35
φ 4.76
φ 6.35
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Service
valve
(3/8")
Charge port
   (1/2")
Single-ended union
(3/8")
Silencer
φ 12.7
φ 7.0
φ 7.0
φ 7.0
φ 7.0
Service
valve
(1/4")
φ 6.35
Single-ended union
(1/4")
Service
valve
(3/8")
Charge port
   (1/2")
Single-ended union
(3/8")
Silencer
φ 12.7
φ 7.0
φ 7.0
φ 7.0
φ 7.0
Service
valve
(1/4")
φ 6.35
Single-ended union
(1/4")
– 150 –
INDOOR UNIT
φ 9.52
φ 6.35
φ 7.0
φ 7.0
φ 7.0
Two way
valve
φ 7.0
φ 9.52
φ 6.35
INDOOR UNIT
φ 9.52
φ 6.35
φ 7.0
φ 7.0
φ 7.0
Two way
valve
φ 7.0
φ 9.52
φ 6.35
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Ce manuel est également adapté pour:

Rac-18sx8