System Set-Up
• 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 ʻ- -ʼ.
(*) : Adjusted temperature is only used to control electric heater on / off condition.
The product does not turn on / off according to the setting temperature at the control panel.
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
-
Silent operation On / Off
• 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 if sanitary
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.
ENGLISH
Installation Manual
73
Summary of Contents for AHNW096A0
Page 92: ...92 Air to Water Heat Pump ...
Page 93: ......
