" first check for blocked vent pipes or a failing inducer motor

It operates effectively as a 3-15 psi receiver gauge

For contractors performing preventative maintenance or replacing a failed vent motor

Proper installation of this KMC pneumatic part eliminates the need for expensive complete actuator replacements

This specific kit is engineered for Normally Closed (N/C) direct-lift valves within the 22/23 Series platform

Enviro-tec M-21215-065 Switch 30067439-890 " first check for blockedThe Enviro tec M 21215 065 is a high capacity pneumatic electric switch engineered specifically for heavy duty commercial HVAC applications, including VAV terminal unit control and electric reheat sequencing. Operating at 277V with a robust 21 amp contact rating, this switch is designed to handle high amperage electrical loads without the need for auxiliary contactors in many configurations. This specific model follows a compact profile without an