York S1-373-39504-014 Conversion Kit 321894-708 The single-pole double-throw (SPDT) configuration

The single-pole double-throw (SPDT) configuration provides versatility for normally open (NO) or normally closed (NC) logic

ensuring that the heat exchanger maintains adequate circulation before the burner is permitted to fire

Exact Compatibility: Engineered as a direct fit for Carrier 320725-757 assemblies and related Bryant/Payne models

which can be trimmed to fit specific cabinet depths if necessary

If sensors are within spec but the board fails to initiate defrost when pins are jumped

York S1-373-39504-014 Conversion Kit 321894-708 The single-pole double-throw (SPDT) configurationFor contractors upgrading legacy HVAC equipment, the York S1 373 39504 014 stands as a critical Gen2 compressor conversion kit designed to bridge the gap between discontinued reciprocating models and modern high efficiency replacements. This OEM York conversion kit eliminates the need for expensive system wide overhauls by providing a precise compressor replacement parts interface that maintains the structural integrity of the existing refrigeration