if the fault persists

Fail-Safe Performance: The 8-13 PSI pneumatic actuator provides mechanical spring return

often at the contactor coil or thermostat wiring

Key Benefits Direct Interchangeability: Fully compatible and identical to the SZ120S4VC model

if your start relay shows signs of pitting or arcing

KMC Controls VCZ-4102AMBE Valve 322056-301 if the fault persistsFor mid size terminal unit applications, the KMC Controls VCZ 4102AMBE Pneumatic Zone Valve offers reliable modulation of hot or chilled water in VAV reheat coils, fan coil units, and induction systems. This 1 2 inch 2 way valve is engineered with a normally open (NO) fail safe position, ensuring maximum flow through the system upon loss of control air pressure. The pneumatic actuator operates within an 8 13 psi spring range, providing precise