DC Inverter UNI SPLIT Series
Duct
Type Unit
39
⑥. Adopt 1.0mm² power cords between indoor and outdoor units. The maximum
length of 35-71 units is 30m and the maximum length of 85-160 units is 75m.
Please select a proper length according to local conditions. To be in
compliance EN 55014, it is necessary to use 30 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 7.5
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.
3) Use nippers to bend the solid wire into a ring that fits the terminal
screw.
4) Form a proper ring and then put it on the terminal board. Use a
screwdriver to tighten up the terminal screw.
(2) For strand wires (as shown below):
1) Use wire cutters to cut off the wire end and then peel away about
10mm of the insulation layer.
2) Use a screwdriver to unscrew the terminal screw on the terminal
board.
3) Use a round terminal fastener or clamp to fix the round terminal firmly
on the peeled wire end.
4) Locate the round terminal conduit. Use a screwdriver to replace it and
tighten up the terminal screw (as shown below).
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