Using an OEM Armstrong replacement part like the A22181-1 ensures dimensional accuracy and material compatibility with industrial steam loads

It must be installed within a NEMA-rated enclosure or a protected control cabinet to prevent exposure to moisture and contaminants

as the safety will not trip when required

utilizing this updated kit ensures the system operates within OEM draft specifications

Once the system cools to the 200°F cut-in temperature

Honeywell 14506635-002 Ring Els PW 17895 Using an OEM Armstrong replacementThe Honeywell 14506635 002 is a heavy duty rough in kit designed specifically for mounting Honeywell whole house air cleaners and standard HVAC cabinets. This professional grade mounting ring measures 38" x 24" x 9", providing the exact structural dimensions required for a flush fit during the ductwork installation phase. It serves as a necessary transition frame, ensuring that the return air drop and the air handler are perfectly aligned before the