MARS 32621 Crankcase Heater 320788-702 Key Benefits OEM Compatibility: Specifically

Key Benefits OEM Compatibility: Specifically engineered for Lochinvar Knight boilers and A

restoring the direct spark ignition sequence essential for safe fuel combustion

including fan timing

This HVAC combustion safety switch ensures reliable operation in high-efficiency heating systems by maintaining strict tolerances for air pressure differentials

Re-use or replace your existing pressure switch separately

MARS 32621 Crankcase Heater 320788-702 Key Benefits OEM Compatibility: SpecificallyExperienced HVAC contractors understand that protecting the compressor from liquid slugging is non negotiable. The MARS 32621 Crankcase Heater is a heavy duty, 240V 50W belt style heater engineered to maintain optimal lubricant temperature during the off cycle. By keeping the crankcase oil warmer than the rest of the system, this belly band heater effectively prevents refrigerant migration, ensuring that the compressor startup is smooth and the