verify shaft diameter and keyway dimensions before cross-referencing

reducing the need for frequent recalibration

A multimeter test across the coil should show continuity if the part is functional

Optimized Serviceability: All wiring connections

KMC Controls RCC-1504 Relay Els PW 17895 verify shaft diameter and keywayThe KMC Controls RCC 1504 Relay is an indispensable pneumatic reversing relay engineered to invert proportional signals in complex HVAC control logic. Specifically calibrated for a 9 PSI crossover pressure, this adjustable reversing relay ensures that as input pressure increases, the output pressure decreases proportionately. This functionality is critical for the precise operation of normally open or normally closed damper actuators and valve