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Installation Manual 35
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit
ENGLISH
Connecting the Cable between Indoor Unit, Distributor Unit and Outdoor Unit
Connect the cable to the indoor unit by connecting the wires to the terminals on the control
board individually according to the outdoor unit connection. (Ensure that the color of the wires
of the outdoor unit and the terminal No. are the same as those of the indoor unit.)
The ground wire should be longer than the common wires.
The circuit diagram is not subject to change without notice.
When installing, refer to the electrical diagram behind the front panel of Indoor Unit.
The wiring for the outdoor unit can be found on the inside of the Outdoor Unit control cover.
Connect the cable to the Indoor unit.
RECOMMENDATION:
• The circuit diagram is subject to change without notice.
• Be sure to connect wires according to the wiring diagram.
• Connect the wires firmly, so that they can not be pulled out easily.
• Connect the wires according to color codes by referring to the wiring diagram.
RECOMMENDATION:
Provide a circuit
breaker between power source and
the outdoor unit as shown below.
RECOMMENDATION:
The power cord connected to the outdoor unit should
comply with the following specifications: NRTL Recognized(for example, UL or
ETL recognized and CSA certified).
Air
Conditioner
Main power source
Circuit Breaker
Use a circuit breaker
or time delay fuse.
Line voltage
(208/230V)
GN/YL
20mm
(25/32 inch)
GN/YL
20mm
(25/32 inch)
RECOMMENDATION: When using separate wires as the power cord, please secure
separate wires in the control box panel using tie wraps to hold all wires in place.
n Power supply cable
n Connecting cable
Outdoor Unit Capacity
(Btu/h class)
Power source
Fuse or breaker
Capacity
18,24,30k 1Ø,208/230V 30A
36,42k 1Ø,208/230V 45A
As always, final wire selection is governed by local codes and
should be installed by a licensed professional contractor.
The power connecting cable between the outdoor and
indoor units must comply with the following specifications:
NRTL Recognized (for example, UL or ETL recognized and
CSA certified).
AWG 18-4 is the minimum recommended wire size,
however, the selected conductors must comply with local
codes and be suitable for installation in wet locations.
Outdoor Unit Capacity
(Btu/h class)
The minimum recommended wire size
18,24,30k AWG 12-3
36,42k AWG 8-3
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