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Air Handlers
①. Fuse is located on the main board.
②. Install a circuit breaker at every power terminal near the units (indoor unit and
thermostat) with at least 0.11in 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. Specifications of power cords listed in the above table are applicable in a working
condition where ambient temperature is 104°F and multi-core copper cable (e.g.
YJV copper cable, with insulated PE and PVC sheath) is protected by a conduit,
and is resistant to 194°F in maximum (see IEC 60364-5-52). If working condition
changes, please adjust the specifications according to national standards.
⑤. Specifications of circuit breaker are based on a working condition where the
working temperature is 104°F. If working condition changes, please adjust the
specifications according to national standards.
⑥. Adopt 5pc of AWG18 power cords to be the communication cords between indoor
unit and thermostat. The maximum length is 98ft. Please select a proper length
according to local conditions. Communication cords must not be twisted together.
⑦. The wire gauge of communication cord should not be less than AWG18. It's
recommended to use AWG18 power cords as the communication cords.
4.7.3 Connection of Power Cords and Thermostat Wires
(1)
For solid wires (as shown below):
1) Use wire cutters to cut off the wire end and then peel away about 0.95in 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 0.39in of the
insulation layer.
2) Use a screwdriver to unscrew the terminal screw on the terminal board.
18
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