The System Sensor 2D51 is a low-profile plug-in photoelectric smoke detector engineered specifically for special application smoke detection within HVAC duct systems

Electrical Integrity: Maintains 3-pole isolation to protect downstream HVAC components from shorts

primarily the 160 lb-in and 310 lb-in series including GCA

preventing damage from typical system surges

KMC Controls VCZ-4103AMBE Valve 318172-701 The System Sensor 2D51 isThe KMC Controls VCZ 4103AMBE Valve is a 3 4 inch NPT, 2 way normally open pneumatic zone valve engineered for precise control of hot or chilled water in commercial HVAC systems. This pneumatic globe valve is built for high demand environments, commonly integrated into VAV terminal unit reheat coils, fan coil units, induction units, and finned tube convectors. With a flow coefficient (Cv) of 4. 1 and a pneumatic actuator operating within an 8 13 PSI