Cleveland Controls DDP-106-177 Switch

The Cleveland Controls DDP-106-177 is a heavy-duty dual air pressure sensing switch designed for critical HVAC and energy management proving circuits. This unit features two independently adjustable SPDT snap-acting switches mounted on a single foot bracket, allowing for precise control of two separate set points or the creation of a custom "deadband." With an operating range of .05" ± .02" to 2" w.c., it is engineered to change contacts on decreasing pressure at approximately .15" w.c., making it an ideal choice for airflow monitoring and combustion byproduct sensing. The rugged design handles up to 1/2 PSI maximum pressure and utilizes specialized silicone diaphragms compatible with air and non-degrading combustion gases. Supporting a voltage range of 120V to 277VAC, this switch provides versatile electrical integration for industrial ventilation systems. This proving switch ensures reliable differential pressure measurement and system safety by confirming proper pressure drops across filters, coils, or fan stages in complex ductwork environments.

• Dual Independent Control: Two separate SPDT switches allow for simultaneous monitoring of high and low actuation points on a single bracket.
• Precise Adjustability: Field-adjustable set points from .05" to 2" w.c. provide high-accuracy sensing for diverse airflow requirements.
• Durable Construction: Built with silicon-based materials that resist degradation from combustion byproducts and general air contaminants.
• Broad Electrical Compatibility: Rated for 120V to 277VAC, ensuring a seamless fit for commercial and industrial power standards.
• Reliable Proving: Provides a 100,000-cycle minimum mechanical life at rated electrical loads and maximum internal pressure.

How do I adjust the set points on the DDP-106-177?
Each of the two snap-acting switches can be independently calibrated by adjusting the internal compression springs to meet your specific differential pressure requirements.

Can this switch be used to monitor flue gases?
Yes, the Cleveland Controls DDP-106-177 is designed for air or combustion byproducts, provided the media does not degrade the silicone diaphragm.

What is the proper mounting orientation for this pressure switch?
For maximum accuracy at the lowest set points, the diaphragm must be mounted in a vertical plane. Avoid mounting with sample line connections facing upward to prevent moisture accumulation.

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.