Johnson Controls C-5226-3 Signal Transmitter

The Johnson Controls C-5226-3 is a precision-engineered pneumatic signal transmitter designed for high-accuracy demand in commercial HVACR control loops. Operating with a 1:1 ratio, this direct-acting proportional transmitter is essential for compensating for pressure drops and transmission lags across long pneumatic lines. Built for versatility, the C-5226-3 functions effectively as a signal isolator, high or low pressure selector, or a differential switchover device, ensuring stable pneumatic transmission signals regardless of system complexity.

Engineered for technical reliability, this unit handles a 25 psig maximum input pressure and features minimal hysteresis to maintain precise repeatability. For technicians managing legacy or modern pneumatic networks, the C-5226-3 provides the necessary capacity to drive multiple receiver-controllers, such as the T-5800 series. Its compact design allows for seamless in-line mounting using standard barbed fittings for 5/32 in. O.D. polytubing, though it can be adapted for 1/4 in. systems using appropriate couplers. To ensure optimal performance, the use of a .005 or .007 in. restrictor is required when used with low-volume output controllers.

Key Benefits

• Versatile Signal Logic: Functions as a high/low signal selector, repeater, or signal limiter for flexible control strategies.
• Transmission Compensation: The 1:1 pneumatic ratio effectively nullifies time lags and pressure losses in extensive tubing runs.
• Enhanced System Capacity: Safely increases the signal capacity of a primary transmitter to feed multiple pneumatic receiver-controllers.
• High Precision Performance: Engineered with minimal hysteresis to guarantee tight pneumatic control loop accuracy and repeatability.
• Durable Construction: Heavy-duty internal components designed for a maximum 25 psig input pressure rating in industrial environments.

Common Questions

Can the C-5226-3 be field repaired?
No, this signal transmitter is a sealed unit. If the device fails to operate within its original calibrated specifications, a full unit replacement is necessary to maintain system integrity.

What type of mounting is supported?
The unit is designed primarily for in-line mounting. It comes standard with barbed fittings for 5/32 in. O.D. tubing but can be integrated into 1/4 in. systems using supplied connectors.

Is a restrictor required for installation?
Yes, the C-5226-3 requires restricted air?typically a .005 or .007 in. restrictor?depending on whether the input source is a low-volume controller or a transmitter.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.