LG THERMA V AHBW076A0, Руководство по обслуживанию, Страница: 23 / 98

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• Following features are permitted in emergency operation :
- Operation On/Off
- VIEW TEMP button(*)
- Temperature adjust button (*)
- Sanitary water heating Enable / Disable
(*) : Temperature measured by failed sensor is displayed as ‘- -’.
(*) : Adjusted temperature is only used to control electric heater on / off condition.
The unit does not turn on / off according to the setting temperature at the remote controller.
It turns on / off according to the thermostat signal.
• Following features are NOT permitted in emergency operation :
- Operating mode (cooling / heating / weather-dependent) selection
- Time scheduling
- SET TEMP button
• Duplicated trouble : Option trouble with slight or heavy trouble
If option trouble is occurred with slight (or heavy) trouble at the same time, the system puts higher priority to
slight (or heavy) trouble and operates as if slight (or heavy) trouble is occurred.
Therefore, sometimes sanitary water heating can be impossible in emergency operation mode. When sanitary
water is not warming up while emergency operation, please check whether the sanitary water sensor and related
wiring are connected well or not.
• Emergency operation is not automatically restarted after main electricity power is reset.
In normal condition, the unit operating information is restored and automatically restarted after main electricity
power is reset.
But in emergency operation, automatic re-start is prohibited to protect the unit.
Therefore, user must restart the unit after power reset when emergency operation has been running.
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