Hitachi AIR CORE 700 PAS-09BUFASDQ1 Manuel D'installation Et D'entretien page 15

2. Refrigerant Flow Diagram
Heating cycle
Model:PAS-09BUFASDQ1/PAS-12BUFASDQ1/PAS-18BUFASDQ1/PAS-24BUFASDQ1
Heating cycle
Model:PAS-30BUFASDQ1/PAS-36BUFASDQ1/PAS-48BUFASDQ1
3. Electrical Wiring Diagram
INDOOR UNIT
Gas piping
Service valve
with check
joint
4-way valve
Liquid
Service valve
piping
Cooling cycle
INDOOR UNIT Gas piping
Service valve
with check
joint
4-way valve
Service valve
Liquid
with check joint
piping
Cooling cycle
Outdoor Unit
TB2
(Transmission)
1 2
Communication cable
Power Supply
Single Phase Series
2. Refrigerant Flow Diagram
OUTDOOR UNIT
Compressor
EEV
OUTDOOR UNIT
Compressor
Accumulator
EEV
Indoor Unit
Transmission
R,S,C
1 2 A B
L2
L1
-11-