Johnson Controls T-4003-203 Thermostat Refrigerant The B1755917HDF is the current

The B1755917HDF is the current factory-authorized successor to the B1755917H

this assembly ensures the motor remains perfectly centered

Is the 1172228 transition assembly compatible with my older ICP unit

and corrosive media that do not degrade stainless steel

Mechanical Protection: Brass friction washers minimize friction during assembly

Johnson Controls T-4003-203 Thermostat Refrigerant The B1755917HDF is the currentThe 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