This HVAC blower motor part is engineered to meet Lennox 611297-03 specifications

allowing for proper control of the compressor and an auxiliary or emergency heat strip on single-stage heat pump platforms

and Miller gas-fired equipment

The coiled element on the A19BAC-15 is specifically designed for ambient air temperature sensing

Nordyne 920806 Control Board 320788-703 This HVAC blower motor partThe Nordyne 920806 Defrost Control Board is a direct OEM replacement component engineered for high efficiency heat pump systems. Designed to manage the defrost cycle by monitoring ambient temperature and coil thermistor resistance, this board ensures optimal heat exchange during low temperature operation. It features integrated timing logic to prevent excessive frost buildup on the outdoor coil, protecting the compressor from liquid slugging and