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Mechanical Protection: Brass friction washers minimize friction during assembly
The B1755917HDF is the current factory-authorized successor to the B1755917H
The 47-20545-91 utilizes a sensitive bimetallic probe to monitor localized air temperature
Installation is versatile with a 1/2" conduit hub and universal break-off mounting tabs
As a veteran-grade component within the J Series Electric Zone Valves lineup
Johnson Controls T-4003-203 Thermostat Refrigerant Mechanical Protection: Brass friction washersThe Johnson Controls T 4003 203 is a high volume output submaster pneumatic thermostat engineered for precise proportional control in complex HVAC systems. Designed for reverse acting operation, this unit utilizes horizontal mounting and is specifically calibrated for applications where a remote master controller resets the setpoint based on external variables like outdoor air temperature. With a massive 400 SCIM flow capacity and a low 20 SCIM air