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Temperature control parameter setting and etc
• Heater on temperature
Using Step 1 capacity of electric heater : when DIP switch No. 6 and 7 is set as 'OFF-ON' :
- Heater on temperature : outdoor air temperature where Step 1 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 Step 1
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.
- 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 step2
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 unit 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 Main PCB assembly 1.
• If FCU is set as 'Not use' but FCU or 2way valve is NOT installed, the unit can do abnormal operation.
• TH on/off Variable, Heating Air
It is a function to adjust the heating air temperature Thermal On / Off temperature according to the field environ-
ment in preparation for heating or heating claim.
• TH on/off Variable, Heating Water
It is a function to adjust the heating water temperature Thermal On / Off temperature according to the field environ-
ment in preparation for heating or heating claim
• TH on/off Variable, cooling air setting
It is a function to adjust the cooling air temperature Thermal On / Off temperature according to the field environ-
ment in preparation for cooling or cooling claim.
• TH on/off Variable, cooling water setting
It is a function to adjust the cooling water temperature Thermal On / Off temperature according to the field envi-
ronment in preparation for cooling or cooling claim.
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Troubleshooting
