York S1-025-49690-000 Kit 318973-401 This kit is built for

This kit is built for long-term HVAC system maintenance

Plug-and-Play Installation: Designed with standard pin-connector layouts for a secure

By utilizing a genuine Reznor 179316 LP to NAT conversion kit

Engineered as a direct replacement for Fasco D817

this assembly ensures the proper static pressure required for safe venting and efficient heat exchanger operation

York S1-025-49690-000 Kit 318973-401 This kit is built forThe York S1 025 49690 000 is an essential OEM kit containing a high capacity 12. 5 ton thermostatic expansion valve (TXV) integrated with a precision 14 tube distributor. Designed for large tonnage commercial HVAC systems, this York expansion valve assembly ensures optimal refrigerant metering across multiple circuits to maintain superheat stability. The valve features an 86. 5 PSIG adjustable setting, allowing technicians to fine tune system