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• Outdoor Air Temperature Switchover
The unit is designed to control the electric heater interfacing with the outdoor temperature. When the outdoor temperature falls
to 20˚F below, it makes the compressor be off and the electric heater be turned on until the outdoor temperature is above
25˚F. This will effectively change the Unit from heat pump mode to total electric resistance heat.
• Temperature limits
The unit is programmed to provide both heating and cooling temperature limits by dip switches on control panel from 50˚F to
90˚F. Temperature limits help to prevent overheating and overcooling for reducing the energy costs.
• Condensate Drain Valve
The unit has the condensate drain valve that prevents water from freezing in basepan.
• Quick Heater Recovery
The unit is designed to operate the electric heater to warm the room to the temperature set point as soon as heat pump cycle
is on in heating. This feature has an advantage of reducing the time to reach the set point and improving the temperature
increase for better comfort.
• Reverse Cycle Defrosting - (PTHDs only)
The unit will activate the reverse cycle defrost When the outdoor coil temperature has remained at a cold temperature to form
the ice on the coil.This ice will reduce airflow though the coil and will also reduce the efficiency of unit. The LG PTHP will
employ an active reverse cycle defrost function to melt the ice off the outdoor coil for insuring room comfort conditions and
savings from extended operation.
• High Temperature Heat Pump Operation Protection
The compressor will be switched off to prevent damage when the heat pump is operated in high outdoor temperatures.
• Remote Thermostat Control
Each unit is built to be operated from any standard 4 or 5 wire remote-mounted thermostat, if desired. The unit has a built-in
low voltage power source which can accommodate a large variety of thermostat choices-manual, auto changeover or
programmable. A remote thermostat can also be added to any installed unit.
• Zone Sensor
Occupants enjoy ultimate comfort with consistent climate control. Attach an optional, inexpensive remote Zone Sensor, to
exactly match the functions of the PTAC without disabling any features.
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