KMC Controls RCC-1001 Reversing Relay

The KMC Controls RCC-1001 Reversing Relay is an essential proportional device for pneumatic control systems, engineered to invert signal outputs from a controlling device. This specific pneumatic reversing relay is factory-calibrated to a 9 PSI crossover point, effectively decreasing branch line pressure as input pressure increases. Designed for field-proven reliability in HVAC applications, the RCC-1001 includes bias adjustment capabilities, allowing technicians to advance or retard the output signal to synchronize components like dampers and valves. With a pilot capacity designed to minimize system lag, it handles a standard operating range of 0 to 20 PSI and a maximum pressure of 30 PSI. This model is supplied without a mounting bracket, making it a direct-fit replacement for existing 9# reversing relay setups within glass-filled nylon housings or modular panels. It maintains precise HVAC pneumatic signal inversion even in demanding environments from 40??F to 120??F, ensuring stable terminal equipment sequencing without "marketing fluff" complications.

• Precise Signal Inversion: Factory-adjusted to decrease branch pressure in direct proportion to input increases for accurate sequencing.
• Integrated Bias Adjustment: Allows for field-calibration to fine-tune the output signal for specific application requirements.
• High-Flow Pilot Capacity: Amplifies the volume of air available to final control devices, significantly reducing pneumatic system lag.
• Compact Integration: Lightweight 0.12 lb design fits easily into existing pneumatic control cabinets where space is at a premium.

Common Questions

The crossover point is factory-set at 9 PSI. Field adjustments can be made using the bias adjustment screw to shift the output signal. This is typically done when a controller signal and the actuator's action are out of sync with the intended logic.

While the RCC-1001 is versatile, it is standard practice to mount these relays in a position that allows easy access to the bias adjustment and prevents moisture accumulation in the ports. Note that this specific unit is shipped without a bracket.

The unit is rated for a nominal operating pressure of 20 PSI, with a maximum safe input pressure of 30 PSI. Exceeding these limits can damage the internal bellows and affect calibration accuracy.

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.