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Enhanced System Protection: Fast-acting single pole
Whether you are performing a suction line pressure switch replacement or a routine system overhaul
Dual Power Flexibility: Operates on standard 24VAC or battery power
The Johnson Controls T-4000-3139 is a professional-grade horizontal pneumatic thermostat cover designed specifically for the T-4000 Series room thermostats
Johnson Controls V-3100-611 Replacement Diaphragm Enhanced System Protection: Fast-acting singleFor field technicians maintaining legacy pneumatic systems, the Johnson Controls V 3100 611 is the definitive replacement diaphragm for the V 3802 Pneumatic Oval Top Actuator. This synthetic elastomer component is engineered to restore the actuator performance and sealing integrity of V 3800 series units and VT series valves. Designed for high temperature applications, it withstands media temperatures up to 281F and a maximum control pressure of 30