Carrier HT31AZ121 Crankcase Heater R-134A this valve is built for

this valve is built for rigorous industrial environments

the "/U" suffix simply denotes the retail-packaged universal version of the same OEM component

Can I use an automatic reset switch instead of this manual reset model

the TER26HC utilizes an external superheat adjustment to maintain optimal evaporator efficiency

The B330 typically supports a close-off pressure of 200 psi

Carrier HT31AZ121 Crankcase Heater R-134A this valve is built forThe Carrier HT31AZ121 Crankcase Heater is a critical component for maintaining compressor reliability in commercial and residential refrigeration systems. This insertion type heater is specifically engineered for Carrier 05T and 06T compressors, as well as the 5H series (5H40, 5H60, 5H80, 5H120). By providing 200 Watts of targeted heat at 120 Volts, it ensures that the compressor oil remains at a temperature higher than the coldest part of the