DC Inverter U-match Series Duct Type Unit
29
④
.
The high-voltage and low-voltage lines should be fixed separately and securely, with internal big
clamps for the former and small clamps for the latter.
⑤
.
Tighten the indoor/outdoor connection cord and power cord respectively on the terminal boards with
screws. Faulty connection may cause a fire.
⑥
.
If the indoor unit connection cord (to the outdoor unit) and power supply are wired incorrectly, the air
conditioner may be damaged.
⑦
.
Connect the indoor unit connection cord properly based on the corresponding marks as shown in
Fig. 4.40.
⑧
.
Ground both the indoor and outdoor units by attaching a ground wire.
⑨
.
Unit shall be grounded in compliance with the applicable local and national codes.
(6). Electric wiring of outdoor unit side
NOTICE!
When connecting the power supply cord, make sure that the phase of
the power supply matches with the exact terminal board. If not, the compressor
will rotate reversely and run improperly.
Remove the big handle (18k~30k) /front board (36k~48k) of the outdoor unit and
insert the end of the communication cord and the power cable into the terminal board.
Single phase:
Fig. 4.42
Power lines should go along the right side plate. Communication lines between
indoor and outdoor units also should go along the right side plate and keep away from
power lines.
5 Installation of Controllers
Refer to the Installation Manual of the controller for more details.
