Precision Engineering: Designed with exact port locations for immediate connection to existing pressure switch tubing and venting

Using it with natural gas without a certified conversion kit can cause hazardous combustion conditions

offering HVAC contractors the flexibility needed for various burner configurations

this OEM-spec control board utilizes robust relays to manage inducer fan motors and main blower operations across various Carrier

A visible crack or erratic flame pattern during inducer startup usually indicates the need for an immediate 48TJ400118 replacement

York S1-R72DB0004 TXV Kit 318973-401 Precision Engineering: Designed with exactThe York S1 R72DB0004 is a precision engineered thermal expansion valve designed specifically for integration with a Mortex evaporator coil. Serving as the direct replacement for the legacy R72DB0004, this TXV kit is essential for maintaining accurate refrigerant metering and evaporator superheat during high demand cooling cycles. For field technicians servicing York, Luxaire, or Coleman equipment, utilizing this OEM HVAC part ensures the system