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LGRED Heat Installation Manual

ManualsBrandsLG ManualsAir Conditioners36,000 BTU Multi F Max 5 Zone Smart Inverter Heat Pump Outdoor Unit with LGRED° Heat Technology, -13°F Extreme Low Ambient Heating, 14°F Low Ambient Cooling, Inverter Variable Speed Compressor, Integrated Base Pan Heater, 41,000 BTU Heating Capacity, Gold
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Table Of Contents
83
Final Installation Procedures
Due to our policy of continuous product innovation, some specifications may change without notification.
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MULTI
F
MAX
MULTI
F
WITH
Forced Cooling Operation Function
Use to add refrigerant to the system when outside ambient temperatures are cool (ex.: winter).
1. Shut power down to the system.
2. Set DIP Switch 1 to ON.
3. Turn power on to the system.
4. Verify that the Red LED on the outdoor unit PCB is ON (indicates indoor units are in forced
cooling operation).
5. Add refrigerant.
• If the green LED light on the outdoor unit PCB is ON, it indicates the compressor is OFF due to
low pressure in the system.
• Turn DIP Switch 1 to OFF after finishing (Normal Operation setting).
• Only the first four DIP switches are functional on the LMU360, 420HHV.
Location of DIP Switches on Multi F and Multi F MAX Outdoor Units
Figure 111: Multi F with LGRED (LMU180-240-300HHV) Outdoor Unit
DIP Switch Locations.
3
12 43
12 43
ON
OFF
5
5
5
Figure 112: Multi F MAX with LGRED (LMU360-420HHV) Outdoor Unit
DIP Switch Locations.
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FINAL INSTALLATION PROCEDURES
Figure 113: LMU180-240-300HHV
Forced Cooling DIP Switch Setting.
SW1
1234
5678 910
ON
OFF
DIP-SW01D
12345678910
Figure 114: LMU360-420HHV Forced
Cooling DIP Switch Setting.