MARS 32621 Crankcase Heater 319848-301 Engineered specifically for the T-4000

Engineered specifically for the T-4000 Series Pneumatic Room Thermostats

providing a secure fit for 3/8 inch copper tubing connections

Key Benefits Precise Safety Monitoring: Activates at a 300°F threshold to prevent the uncontrolled release of gas

ensuring that the control logic accurately reflects ambient or coil temperatures

but the unit must never be left operating without a functioning high limit safety control in place

MARS 32621 Crankcase Heater 319848-301 Engineered specifically for the T-4000Experienced 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