Armstrong Fluid Technology 89975001-83702K Seal 321894-709 ensuring the evaporator clears frost

ensuring the evaporator clears frost before the compressor restarts

By utilizing the HV2729922-12VDC model

System Safety: Restores proper draft

This 1-3/8" OD elbow is the exact same size as a 1-1/4" nominal plumbing fitting

using a Lennox replacement part ensures the safety and operational integrity of the combustion air proving circuit

Armstrong Fluid Technology 89975001-83702K Seal 321894-709 ensuring the evaporator clears frostThe Armstrong Fluid Technology 89975001 83702K Seal is a precision engineered silicon carbide mechanical seal designed for high performance fluid handling. This shaft seal replacement is the direct successor to the 89975001 837, offering enhanced durability for abrasive environments. Built to handle abrasive glycol and high temperature water applications, the 89975001 83702K features silicon carbide faces that provide exceptional hardness and wear