KMC Controls RCC-1112 Relay

The KMC Controls RCC-1112 is a high-performance pneumatic reversing relay engineered for precise control in building automation and HVACR systems. As a pilot capacity device, it is specifically designed to reverse a proportional signal from a controlling device, ensuring that branch line pressure decreases as the input pressure increases. This unit is factory-calibrated with an 8 PSI changeover point and features an integrated bias adjustment ranging from +/- 15 psi, allowing for fine-tuning in the field to meet specific application requirements. Built for durability, it operates effectively within a temperature range of 40°F to 120°F and can handle a maximum supply pressure of 30 psig. The included mounting bracket simplifies installation for technicians working with standard 1/4" O.D. polyethylene tubing. This OEM replacement part is essential for maintaining the sequence of operation in legacy pneumatic circuits that require reliable signal inversion and 8# C/O logic.

Key Benefits:

• Precision Signal Reversal: Accurately converts increasing input signals to decreasing output pressures for seamless logic control.
• Integrated Bias Adjustment: Allows for field-calibration across a +/- 15 psi range to compensate for system variables.
• Broad Compatibility: Standard 3/16" connections fit 1/4" O.D. tubing common in most pneumatic control systems.
• Rugged Construction: Designed to withstand environments up to 120°F with consistent pilot capacity performance.
• Easy Installation: The included bracket ensures stable mounting in tight control cabinets or air handling units.

Common Questions:

How do I plumb the ports on the RCC-1112?
Standard configuration uses Port M for main air, Port B for the branch output, and Port S for the input signal from the controller. Ensure you are using clean, dry control air to prevent component failure.

Can the changeover point be adjusted?
While the unit is factory-set for an 8# C/O, the internal bias adjustment allows you to shift the output pressure relative to the input signal to match your specific pneumatic relay sequence.

Is this compatible with 30 PSI systems?
The RCC-1112 has a maximum pressure rating of 30 psig, making it suitable for standard 20 psi pneumatic systems while providing a safety margin for pressure spikes.

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.