Johnson Controls T-4000-2139 Cover This heavy-duty 120V to 24V

This heavy-duty 120V to 24V step-down transformer is engineered for continuous-duty applications where stable secondary voltage is critical for powering sensors

What is the maximum pressure rating for this liquid line drier

The lead length provides ample slack for proper routing around copper lines and internal components

this part is used across several brands including Heil

Safety Compliance: Engineered to meet strict manufacturer safety standards for HVAC temperature regulation and fire prevention

Johnson Controls T-4000-2139 Cover This heavy-duty 120V to 24VThe Johnson Controls T 4000 2139 is a professional grade horizontal thermostat cover designed specifically for the T 4000 Series pneumatic room thermostats. Engineered for sleek, unobtrusive installation, this beige plastic cover features a clean aluminum faceplate without a thermometer window or setpoint adjustment openings. This configuration is ideal for facilities where unauthorized tampering must be minimized while maintaining a uniform aesthetic