89
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 45 °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 frequent
On and Off of water tank heater.
- Heating priority : Determining heating demand priority between DHW tank heating and under
floor heating.
- Example : If user’s target temperature is set as ’70’ and Hysteresis is set as ‘3’, then the
water tank heater will be turned off when the water temperature is above 73 °C. The water
tank 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 water 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
water heater. In this case the under floor heating is not stopped while DHW is heated.
Water heater off
temperature
Time
Session A
Session B
Session C
Session D
Target DHW
temperature (set by user)
Starting temperature
of DHW heating
Session A : Heating by AWHP compressor cycle and water heater
Session B : Heating by water heater
Session C : No heating (Water heater is Off)
Session D : Heating by water heater
Water temperature
(Inside DHW water tank)
Min temp.
Max outdoor temp.
Hysteresis
88
INSTALLER SETTING
Heater priority
- Heater priority : determine electric heater and DHW tank heater on and off.
- Example : If Heater priority is set as ‘Main+Boost heater ON’, then electric heater and DHW
tank heater are on and off according to control logic. If Heater priority is set as ‘Boost heater
only ON’, then electric heater is never turned on and only DHW tank heater is on and off
according to control logic.
• In the installer setting list, heater priority category, and press [OK] button to move to the detail
screen.
Value
Boost heater only ON
Main+Boost heater ON
OK
NOTE
DHW heating does not operate when it is disabled.
Summary of Contents for PREMTW101
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