LG Therma V ZHBW056A0 Service Manual page 88

Air-to-water heat pump

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Check Point

1. Check the power source.(230V ±15%)

2. Check the fan operation is right.

3. Check the current.

4. Check the install condition.

5. Check the CT Sensor Output signal

(ZHBW056A0 / ZHBW076A0 / ZHBW096A0 - Check output the CT Sensor : DC 2.5±0.2V

ZHBW126A0 / ZHBW146A0 / ZHBW166A0 - Check output pin 2.3 of the CT Sensor : DC 2.5±0.2V

ZHBW128A0 / ZHBW148A0 / ZHBW168A0 - Check input_current of the CT sensor : DC 2.5±0.2V)

▶ZHBW056A0 / ZHBW076A0 / ZHBW096A0

▶ ZHBW126A0 / ZHBW146A0 / ZHBW166A0

Red

- 88 -

Only training and service purposes.

GND

Vdc

Black

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