Multi F Four-Way Ceiling Cassette Service Manual
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Ceiling Cassette 5-Zone LGRED° Heat System - 42,000 BTU Outdoor - 7k + 7k + 7k + 12k + 18k Indoor - 20.5 SEER
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Part 5. T
rouble Shooting
- 85 -
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Only for training and service purposes
LGE Internal Use Only
< Inv
er
ter PCB>
< Input
V
oltage Sensing Check P
oint >
GND
GND
INPUT(V)
INPUT(V)
INPUT(V)
36k
54k
Vdc
GND
IN/I
GND
<CT Sensing Check Point>
Black
Red
Vdc
1
...
...
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...
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