Electrical Wiring; General Check; Electrical Wiring Diagram - Hitachi air core 600 Installation & Maintenance Manual

6. Electrical Wiring

6.1 General Check

CAUTION
•When clamping the wiring, to prevent external pressure being exerted on the wiring connections, use the
clamping material and conduct fixing firmly.
• When performing the wiring work, ensure that the wiring is proper and cannot cause the control box lid to open
up, if so close the cover firmly. When attaching the control lid, make sure that the wires are not affected.
• Outside the unit, keep the weak wiring (remote controller and transmission wiring) and strong wiring (earth and
power supply wiring) at least 50mm away so that they do not pass through the same place together. Proximity
may cause electrical interference malfunction and breakage.
WARNING
• If the fuses burn, please call the service dealer. Please do not replace by yourself, otherwise, it may lead to
electric shock and other injuries.
(1) Remove the screws on the control box.
(2) Connect the power cord and earth wire to the main terminal.
(3) Connect the remote control wire to the subsidiary terminal box according to electric wiring diagram.
(4) Connect the power supply of the indoor and outdoor units to the main terminal.
(5) Tie the wire in the control box with the clamp tightly.
(6) After completing the wiring, seal the wiring hole with the sealing material (with the lid) to prevent the
condensed water and insects entering the wiring space.

6.2 Electrical Wiring Diagram

Outdoor unit
Terminal
1(L)
2(N)
4(SI)
L
N
Power supply
Single-phase series
18K/25K/30K/36K
Indoor unit
Terminal
1(L)
Transmission Cable
2(N)
4(SI)
Installation and Maintenance
Outdoor unit
Terminal
1(L)
2(N)
4(SI)
W
V
U
N
Power supply
Three-phase series
42K/48K/55K
29
Indoor unit
Terminal
1(L)
Transmission Cable
2(N)
4(SI)