Air Handlers
20
⑪. After the electrical installation is finished, please use wire clamps to secure the
power cords and the thermostat wires. Make sure the wires are not clamped too
tight.
⑫. The wire gauge of power cord should be large enough. Damaged power cords or
other wires must be replaced by specialized wires. Wiring work must be done
according to national wiring rules and regulations.
4.7.2 Electrical Parameters
Model Power supply
Minimum
circuit
Maximum
overcurrent
GUD24AH2/A-D(U)
GUD36AH2/A-D(U)
208/230V-1Ph-60Hz
4
15
GUD48AH2/A-D(U)
GUD60AH2/A-D(U)
8
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 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. 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.
⑤. Adopt 5pc of AWG18 power cords to be the communication cords between indoor
unit and thermostat. The maximum length is 30m. Please select a proper length
according to local conditions. Communication cords must not be twisted together.
⑥. The wire gauge of communication cord should not be less than AWG18. It’s
recommended to use AWG18 power cords as the communication cords.
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