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INSTALLER SETTING
ENGLISH
• Tank setting 1, 2
Descriptions for each parameters are as following.
- Min temp. : temperature gap from Max outdoor temp.
- Max outdoor temp. : maximum temperature generated by AWHP compressor cycle.
- Example : If Min temp. is set as ‘5’ and Max outdoor temp. is set as ’48’, then Session A (see
the graph) will be started when the water tank temperature is below 43 °C…. If temperature is
above 48 °C…, then Session B will be started.
- Hysteresis : Temperature gap from target DHW temperature for booster heater operating.
This value is required to prevent frequent On and Off of water tank heater.
In the normal DHW operation, the value is set as ‘0’ and Hysteresis is valid when heater delay
time is active.
- Example : If user’s target temperature is set as ’70’ and Hysteresis is set as ‘3’, then the
booster heater will be turned off when the water temperature is above 73 °C. The booster
heater will be turned on when the water temperature is below 70 °C.
- Heating priority : Determining heating demand priority between DHW tank heating and under
floor heating.
- Example : If Heating priority is set as ‘DHW’, that means heating priority is on DHW heating,
DHW is heated by AWHP compressor cycle and booster heater.
In this case the under floor can not be heated while DHW heating. On the other hand, if the
Heating priority is set as ‘Floor heating’, that means heating priority is on under floor heating,
DHW tank is ONLY heated by booster heater. In this case the under floor heating is not
stopped while DHW is heated.
Booster heater off
temperature
Time
Target DHW
temperature (set by user)
Starting temperature
of DHW heating
Session A : Heating by AWHP compressor cycle and booster heater
Session B : Heating by booster heater
Session C : No heating (booster heater is Off)
Session D : Heating by booster heater
Water temperature
(Inside DHW)
Min temp.
Max outdoor temp.
Hysteresis
Session A
Session A
Session B
Session B
Session C
Session C
Session D
Session D
Session A
Session B
Session C
Session D
NOTE
DHW heating does not operate when it is disabled.