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while the 1/4-20" threaded shaft and pad/bracket mounting provide seamless integration into existing 51-frame setups
it is standard practice for techs to retain or replace NPT pipe plugs and condensate traps during the swap
For contractors performing suction line cleanup
Specific high-elevation kits are often required for installations above 2
using an OEM Reznor pressure switch ensures the system stays within the original manufacturer's design parameters for safety and venting performance
York S1-331-01975-001 Control Kit R-410A while the 1/4-20" threaded shaftManaging frost accumulation on heat pump evaporator coils requires a reliable, logic driven solution rather than basic timed cycles. The York S1 331 01975 001 Demand Defrost Control Kit is a field proven OEM replacement board engineered to upgrade older, less efficient 031 01098 series controls. For contractors servicing York, Coleman, or Luxaire equipment, this heat pump defrost control utilizes a shunt jumper system to select precise defrost