Description
The York S1-02547843000 Crankcase Band Heater 90W 8.5″ DIA 480V is an electrical heating element designed for use on refrigeration compressors to maintain lubricant temperature during off cycles. It wraps around the compressor crankcase to avoid refrigerant migration into the oil, which can reduce lubrication efficiency at startup in HVAC systems. The heater operates to supply and deliver low-wattage heat to stabilize internal compressor conditions. It is installed in commercial and industrial cooling systems, including rooftop units and chillers, where compressor protection and accurate startup performance are required under ambient temperature conditions.
