this normally closed (NC) valve features 5/8" ODF solder connections

and "L" Series float and thermostatic steam traps

Installing the 510-811-644 replacement kit restores the proper millivolt signal to the gas valve

ensuring that the flue gases are properly venting before the ignition sequence initiates

York S1-025-38907-000 TXV Freon this normally closed (NC) valveThe York S1 025 38907 000 is an OEM engineered 2 ton R 22 expansion valve designed for precise refrigerant metering in York, Luxaire, and Coleman residential evaporator coils. As a veteran grade HVAC thermostatic expansion valve, this component utilizes a 3 8" x 3 8" physical connection size to ensure seamless integration into existing liquid line configurations without the need for additional adapters. The integral 30 inch capillary tube provides the