This GC Valves S402GF02V9CF5 is normally open

Industry Standard Compatibility: Direct replacement for existing two-way zone valve bodies in standard 1/2" sweat piping configurations

it is primarily intended for air and water applications

Contractors should look for visible stress fractures in the plastic

do not substitute it with an auto-reset version

Carrier HT36DL481 Crankcase Heater 320734-701 This GC Valves S402GF02V9CF5 isThe Carrier HT36DL481 Crankcase Heater is a critical OEM component designed to protect high pressure compressors in Carrier, Bryant, and Payne HVACR systems. Operating at 460 Volts with a 125 Watt output, this insertion type heater ensures that the compressor oil remains at a higher temperature than the systems coldest point. This specific thermal regulation prevents refrigerant migration and oil dilution, which are leading causes of compressor