a reduced pressure zone (RPZ) assembly is required by most codes

of Polyolester (POE) oil

With a wide adjustable timing range from 1

you should have continuity

By using the Honeywell Home cover plate

Schneider Electric (Erie) AH23A020 Actuator Els PW 17895 a reduced pressure zone (RPZ)The Schneider Electric Erie AH23A020 Actuator is a veteran grade solution for hydronic HVAC systems, specifically designed for high performance zone control. This Erie PopTop actuator features a 24Vac hysteresis synchronous motor that provides two position (on off) operation with a reliable spring return fail safe. Engineered for high close off (HCO) applications up to 75 psi, the AH23A020 ensures positive shut off in demand heavy environments like