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Using Thermostat
• Following features are permitted in emergency operation :
- Operation On/Off
- VIEW TEMP button(*)
- Temperature adjust button (*)
- Domestic Hot water heating Enable / Disable
(*) : Temperature measured by failed sensor is displayed as ‘- -’.
The product 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 (Heating/ Weather-dependent) selection
- Time scheduling
- SET TEMP button
• Duplicated trouble : Option trouble with Slight or Heavy trouble
- If option trouble occurs 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 occurs.
- Therefore, sometimes Domestic Hot water heating can be impossible in emergency operation
mode. When Domestic Hot water is not warming up while emergency operation, please check if
Domestic Hot water sensor and related wiring are all Ok.
• Emergency operation is not automatically restarted after main electricity power is reset.
- In normal condition, the product 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 product.
- Therefore, user must restart the product after power reset when emergency operation has been
running.
Owner’s Manual 23
Hydro Kit
ENGLISH
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