LG PAHCNM000 Owners & Installation Manual page 34

HMI SETTINGS
34
CAUTION
!
• If the cooling or heating heat source setting is not correct, you may not be able to select
the operation mode in the HMI.
- If the cooling (heating) heat source is not set, the Cooling (Heating) mode cannot be
selected and only the fan will operate.
Item
You can set the number of outdoor units connected to
Number of outdoor
the air conditioner. Up to 3 outdoor units can be
units (ODU)
connected.
Set the cooling heat source.
- Refrigerant (air-cooled): air-cooled outdoor unit
Cooling heat source
- Cold water (water-cooled): water-cooled outdoor unit
- Cold water: install cold water valve
Based on the supply air temperature, it controls the
Cooling heat source
number of outdoor units according to the set
achieved
temperature.
temperature
- Cooling heat source value input range: 10-25 °C
Set the heating heat source.
- Refrigerant (air-cooled): air-cooled outdoor unit
- Cold water (water-cooled): water-cooled outdoor unit
Heating heat source
- Hot water: install hot water valve
- Steam: install steam valve
- Electric heater: install electric heater
Based on the supply air temperature, it controls the
Heating heat source
number of outdoor units according to the set
achieved
temperature.
temperature
- Heating heat source value input range: 30-50 °C
Item
When running defrost in an outdoor unit, the fan's
operation status is set based on the supply air
temperature and piping temperature.
Set the fan off temperature based on the supply air
temperature.
Fan Off/On
- Air conditioner 20-35 °C, Dedicated outdoor air unit
during defrost
15-30 °C
Fan operation return temperature is based on the
refrigerant liquid pipe temperature.
- Air conditioner 30-45 °C, Dedicated outdoor air unit
25-40 °C
Sets the minimum value at which the cooling valve closes
Cooling valve
when cold water is set as the heat source.
minimum value
- Setting range: 0-100%
Sets the minimum value at which the heating valve closes
Heating valve
when hot water is set as the heat source.
minimum value
- Setting range: 0-100%
Description
Description