The PQSH1202 Drain Pan Heater for Single Zone Cassette and Ducted Systems. It works with compatible the 9,000 BTU LUU097HV and 12,000 BTU LUU127HV outdoor units and is easily installed. By installing the Drain Pan Heater, you can extend the cooling range of your unit from 14°F down to -4°F. It can also prevent ice build-up that may come from extreme winter weather.
This is a great option for computer rooms or other temperature sensitive rooms where cooling is needed year round.