Refrigerant Flow Diagram; Electrical Wiring Diagram - Hitachi Primairy Series Installation & Maintenance Manual

REFRIGERANT FLOW DIAGRAM
Heating cycle
Cooling cycle
Outdoor unit
Terminals
Transmission cable
1(L)
2(N)
4(SI)
L
N
Power supply
3.0/3.5/4.0HP
9 HO2019292HA
INDOOR UNIT
Gas
piping
Service valve
with check joint
Liquid
piping
Service valve
Indoor unit
Terminals
1(L)
2(N)
4(SI)

Refrigerant flow diagram

OUTDOOR UNIT
Accumulator
4-way valve
EEV

Electrical wiring diagram

Outdoor unit
Terminals
1(L)
2(N)
4(SI)
W
V
U
N
Power supply
Compressor
Indoor unit
Terminals
1(L)
Transmission cable
2(N)
4(SI)
5.0/6.0/6.5HP