Sanyo KH2442 / CH2442 User Manual download pdf (Page 159)

Section

IV - 3

SM830082

4. Service procedures

(1) Check before and after Troubleshooting

Many problems may happen because of wiring or power supply problems, so you should

check these areas first. Problems here can cause false results in some of the other tests, and

so should be corrected first.

1. Check power supply wiring

❑ Check the power supply wires are correctly connected between terminal

No. 1 & 2 on the 5P terminal plates in the indoor unit and the outdoor unit.

2. Check inter-unit wiring

❑ Check that inter-unit control wiring (DC low voltage) is correctly connected between the

indoor unit and outdoor unit.

Power Supply: 60 Hz, single-phase, 230/208 V

3. Check power supply

❑ Check that voltage is within the specified range (±10% of the rating).

❑ Check that power is being supplied.

If the following troubleshooting must be done with power being supplied, be

careful not to touch any uninsulated live part that can cause ELECTRIC

SHOCK.

4. Check the lead wires and connectors in indoor and outdoor units.

❑ Check that the sheath of lead wires is not damaged.

❑ Check that the lead wires are firmly connected at the terminal plate.

❑ Check that the wiring is correct.

G G

Indoor Unit

Inter-unit

power wiring

Single phase

230/208V

Inter-unit

control wiring

(Low voltage)

Remote controller

Outdoor Unit

Ground

(Option)

2085_M_I

Power supply

Single phase

230/208V

R.C. Address on the PCB: 0 (S2, BLK)

(0: Factory shipped state)

*Remote controller wirings are wire joint connection.

Fig. IV-1

1 2 ... 154 155 156 157 158 159 160 161 162 163 164 ... 201 202

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Sanyo KH2442 / CH2442 User Manual Page 159

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