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CAUTION
7-4. Examples of Incorrect Wiring
The following are examples of improper wiring that result
in system misoperation. You should confirm that you
have wired the units correctly before beginning the Test
Run described on page 25.
Problem 1
● Short circuit will occur after approx. 3 minutes.
Problem 2
● Air conditioner will not operate.
Problem 3
● Compressor will not start; only indoor unit will
operate.
1
4
2
G G
Indoor unit Outdoor unit
1
4
2
G G
1
4
2
Indoor unit Outdoor unit
1
4
2
G G
1
4
2
Indoor unit Outdoor unit
1
2
4
G G
1
4
2
Indoor unit Outdoor unit
1
2
4
G G
1
4
2
Indoor unit Outdoor unit
1
2
4