York S1-010-06900-005 Gasket 318172-701 While the base ZP2-HC supports

While the base ZP2-HC supports 2-wire dampers

positive electrical switching to prevent "chatter" and ensure high-voltage signal reliability for burner and pump circuits

Specifically design-built for pressure-dependent VAV equipment

and PWB Series boiler models for seamless field installation

you preserve the original equipment’s airflow characteristics and electrical load balance

York S1-010-06900-005 Gasket 318172-701 While the base ZP2-HC supportsThe York S1 010 06900 005 is a precision engineered combustion air box gasket designed to maintain the critical seal between the burner box and the inducer housing. In high efficiency gas furnaces, maintaining airtight integrity within the secondary heat exchanger assembly is paramount for achieving the correct static pressure required to close the pressure switch. This York OEM furnace part prevents bypass air from entering the combustion chamber,