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INSTALLER SETTING
152
• Tank setting 1, 2
Descriptions for each parameters are as following.
- Min temp. : temperature gap from Max outdoor temp.
- Comp. Limit Temp. : maximum temperature generated by AWHP compressor cycle.
- Example : If Min temp. is set as '5' and Comp. Limit 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. This value is required to prevent
frequent On and Off of electric heater.
- Example : If user's target temperature is set as '70' and Hysteresis is set as '3', then the
electric heater will be turned off when the water temperature is above 73 °C. The electric
heater will be turned on when the water temperature is below 70 °C.
- Example : If Heating priority is set as 'DHW', that means heating priority is on DHW heating,
DHW is heated by AWHP compressor cycle and electric 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 electric heater. In this case the under floor heating is not stopped while DHW is
heated.
Water temperature
(Inside sanitary water tank)
Electric heater off
temperature
Target DHW
temperature (set by user)
Comp. Limit Temp.
Starting temperature
of DHW heating
NOTE
DHW heating does not operate when it is disabled.
Min temp.
Session A
Session A
Session A
Session B
Session B
Session B
Session A : Heating by AWHP compressor cycle and electric heater
Session B : Heating by electric heater
Session C : No heating (Electric heater is Off)
Session D : Heating by electric heater
Session C
Session C
Session C
Session D
Session D
Session D
Hysteresis
Time
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