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INSTALLING THE OUTDOOR UNIT
Auxiliary Circuit Breaker
◆
Auxiliary circuit breaker should be installed near outdoor unit so that each
access is possible.
Main/outdoor power supply cable are connected to upper/lower terminal of
auxiliary circuit breaker.
◆
It is necessary that the conduit kit for power supply to the outdoor unit be
installed between auxiliary power s/w and the outdoor unit.
(the conduit kit is optional)
Electrical Work
Outdoor
unit
Distribution
board
Conduit kit
Auxiliary
power
s/w
1 The supply voltage must be the same as the rated voltage of the air conditioner.
2 Prepare the power souce for exclusive use with the air conditioner.
3 Use 20 amperes time delay fuse or circuit breaker.
➢ When using the special NFB, use the NFB to bear the capacity of the
air conditioner.
➢ Otherwise, the shot circuit in the NFB may be occur.
Model
Power supply
Main power supply cable
Assembly cable
Operating current
Power consumption
UM18A1C2
AWG14
AWG17
8.0
1720
UM26A1C2
AWG14
AWG17
11.8
2580
UM27A1C3
AWG14
AWG17
12.2
2650
208-230V~, 60Hz Single phase
E-
38