though performance should be verified against the specific transformer output to ensure reliable magnetic pull-in

This vent pressure switch monitors the pressure differential within the combustion blower assembly

Professional installation ensures that the dial aligns correctly with the internal potentiometer or switch shaft for reliable operation

It serves as an ambient sensor that locks out the supplemental electric heat when the outdoor temperature is high enough for the heat pump to operate efficiently

Parker 450028-001 Filter Els PW 17895 though performance should be verifiedThe Parker 450028 001 (Model BF164S) is a high performance bi flow liquid line filter drier specifically designed for heat pump applications and reverse cycle systems. Featuring 1 2 inch ODF sweat connections, this 16 cubic inch unit provides critical protection against moisture, acid, and solid contaminants. For technicians performing maintenance or repairs, the 450028 001 serves as the direct replacement for 031653 07, ensuring seamless