Complete Kit: Includes the mechanical selector dial and bezel

necessitating a replacement of the liquid level sensor to maintain system reliability

Maintains heating appliance efficiency when switching from natural gas to propane fuel sources

This set is essential for technicians performing packing gland replacement or retrofitting older thermostatic radiator valves with modern RA2000 radiator sensors

the open air over (OAO) enclosure utilizes the airstream for thermal management

Johnson Controls MP823D001A Valve Actuator 30067439-890 Complete Kit: Includes the mechanicalThe Johnson Controls MP823D001A is a robust, 25 square inch pneumatic valve actuator designed for precise proportional control in commercial HVAC systems. This spring return stem up unit is engineered for medium to large valves, featuring a 3 4 inch stroke and a 4 8 PSI spring range for reliable fail safe operation. Utilizing a 1 4 inch OD barbed fitting air connection, this proportional control actuator handles up to 25 PSI maximum control pressure,