DC Inverter U-match Series Floor Ceiling Type Unit
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②
Install a circuit breaker near the outdoor units with at least 3mm
contact gap. The units must be able to be plugged or unplugged.
③
Circuit breaker and power cord specifications listed in the above table
are determined based on the maximum power input of the units.
④
Supply cords of parts of appliances for outdoor use shall not be lighter
than polychloroprene sheathed flexible cord (code designation 60245
IEC 57).
⑤
Specifications of circuit breaker are based on a working condition
where the working temperature is 40°C. If working condition changes,
please adjust the specifications according to national standards.
⑥
Adopt 1.0mm² power cords between indoor and outdoor units. The
maximum length of 35-85 units is 30m and the maximum length of
100-160 units is 75m. Please select a proper length according to local
conditions. To be in compliance EN 55014, it is necessary to use 8
meters long wire.
⑦
Adopt 2pc of 0.75mm² power cords to be the communication cords
between wired controller and indoor unit. The maximum length is 30m.
Please select a proper length according to local conditions.
Communication cords must not be twisted together. To be in
compliance EN 55014, it is necessary to use 8 meters long wire.
⑧
The wire gauge of communication cord should not be less than
0.75mm². It’s recommended to use 0.75mm² power cords as the
communication cords.
⑨
It's required to adopt the shielded wire for the communication cable
between the indoor unit and the centralized controller; when
connection is finished, the shielding layer should be reliably grounded.
2.3.3 Connection of Power Cord and Communication Cord
(1) For solid wires (as shown below):
1)
Use wire cutters to cut off the wire end and then peel away about
25mm of the insulation layer.
2)
Use a screwdriver to unscrew the terminal screw on the terminal
board.
