Temperature Control Parameter Setting - LG THERMA V Installation Manual

1,MFL68681810,영영 2017. 7. 1. 영영 12:55 Page 76
System Set-Up

Temperature Control Parameter Setting

• Heater on temperature
Using Half capacity of electric heater : when DIP Switch No. 6 and 7 is set as 'OFF-ON' :
- Heater on temperature : outdoor air temperature where half capacity of electric heater starts
operation.
- Not used.
- Example : If Heater on temperature is set as '-1' and DIP switch No 6. and 7 is set as 'OFF-ON',
then half capacity of electric heater will start operation when outdoor air temperature is below -
1 °C and current leaving water temperature or room air temperature is much belower than target
leaving water temperature or target room air temperature.
Using Full capacity of electric heater : when DIP Switch No. 6 and 7 is set as 'OFF-OFF' :
- Heater on temperature
- Not used.
- Example : If Heater on temperature is set as '-1' and DIP switch No 6. and 7 is set as 'OFF-OFF',
then full capacity of electric heater will start operation when outdoor air temperature is below -1 °C
and current leaving water temperature or room air temperature is much belower than target
leaving water temperature or target room air temperature.
• Water supply off temp. during cooling
Determine leaving water temperature when the product is turned off. This function is used fr
preventing condensation on the floor in cooling mode.
- Stop temp. : cut-off temperature. Stop temp. is valid when FCU is installed.
- FCU : determines if FCU is installed or not.
- Example : If Stop temp. is set as '10' and FCU is 'Use' and actually FCU is NOT installed in the
water loop, the unit stop operation in cooling mode when the leaving water temperature is below
10 °C.
- Example : If Stop temp. is set as '10' and FCU is 'Not use' and actually FCU is installed in the
water loop, the Stop temp. is not used and the unit do NOT stop operation in cooling mode when
the leaving water temperature is below 10 °C.
FCU Installation
• If FCU is used, related 2way valve should be installed and connected to the indoor unit PCB.
• If FCU is set as 'Not use' but FCU or 2way valve is NOT installed, the unit can do abnormal
operation.
76 Air-to-Water Heat Pump