When troubleshooting solenoid coil burnout or voltage drop issues

As a direct replacement for part 2272133

it is best practice to mount the valve with the coil upright to prevent the accumulation of scale or debris in the plunger tube

automatically retracting the actuator shaft upon a loss of supply air pressure to maintain a known fail-safe damper position

OEM Compatibility: Guaranteed fit for Lennox 48G22 and compatible Honeywell gas valves

Johnson Controls T-4506-9007 Pneumatic Thermostat Freon When troubleshooting solenoid coil burnoutThe Johnson Controls T 4506 9007 is a dual temperature, direct acting pneumatic thermostat designed for precision climate control in commercial HVAC systems. Operating within a setpoint range of 12 to 30 degrees Celsius, this unit is engineered for horizontal mounting and provides reliable pneumatic room control for heating and cooling transitions. As a dual pressure thermostat, it utilizes a bi metal sensing element to maintain tight differentials,