Carrier HT32BH390 Crankcase Heater 319852-301 This silent operator relay features

This silent operator relay features a self-contained transformer and bimetal heater design that eliminates the "clack" common in traditional magnetic contactors

protecting the boiler low water cutoff sequence

is a comprehensive field service solution designed specifically for maintenance of the Watts 9D dual check valve with atmospheric vent

Is the 60" capillary tube length mandatory to use

Precise Alignment: Designed to factory specifications to ensure the motor remains perfectly centered within the blower or condenser housing

Carrier HT32BH390 Crankcase Heater 319852-301 This silent operator relay featuresThe Carrier HT32BH390 Crankcase Heater is a critical OEM replacement part designed to protect compressor integrity in high demand HVACR systems. As a veteran technician knows, maintaining precise crankcase temperatures is non negotiable for preventing refrigerant migration and condensation buildup during off cycles or low ambient conditions. This compressor heater band ensures optimal oil viscosity, drastically reducing the risk of slugging and