The durable construction is built to withstand the typical environment of an evaporator coil section

or a furnace that shuts down frequently due to high-limit switches

Always ensure the bulb is insulated and making tight metal-to-metal contact with the pipe

8V output is calibrated for specific board tolerances

York S1-025-37399-240 Belt R-22 The durable construction is builtThe York S1 025 37399 240 is a heavy duty belt type crankcase heater engineered for high performance HVACR compressors. Operating at 240 Volts with a 70 Watts power rating, this heater is essential for preventing refrigerant migration into the compressor oil during the off cycle. This component features an adjustable strap designed to fit compressor housings with a 21. 8 29" diameter, ensuring a tight, high thermal transfer contact point. The 48"