Cleveland Controls DDP-106 Switch

The Cleveland Controls DDP-106 Air Pressure Sensing Switch is an essential field-adjustable component for HVAC and energy management systems requiring precise air pressure monitoring. This dual switching action device features two separately-operated, independently-adjustable SPDT snap-acting switches mounted on a single foot bracket, allowing technicians to establish a specific adjustable deadband for complex control circuits. Designed to detect differential pressure in air or combustion by-products that do not degrade silicone, it handles a differential pressure range from 0.05" ± 0.02" w.c. to 2.0" w.c. with a maximum of 1/2 PSI. The unit integrates a common high-pressure sample connection and two individual low-pressure connections, all of which accept 1/4" OD metallic or rigid tubing via integral compression ferrules. Rated for 120V to 277VAC, the DDP-106 operates reliably in temperatures from -40°F to 176°F, making it a robust choice for industrial airflow proving and alarm functions where independent set points are required for high and low actuation.

• Dual SPDT Switching: Features two independent switches on one bracket for versatile alarm and control configurations.
• Precise Field Adjustability: Broad range from 0.05" to 2.0" w.c. accommodates fine-tuned system requirements.
• Durable Construction: Plated housings and silicone-compatible diaphragms ensure longevity in harsh combustion environments.
• Flexible Mounting: Designed for vertical mounting to maintain high sensitivity and accuracy at low set points.
• Universal Compatibility: Multi-voltage 120-277VAC electrical rating fits most commercial and industrial service applications.

How do I set the deadband on the DDP-106?
Since each SPDT switch is adjusted independently, you can set "Switch A" to your low actuation point and "Switch B" to your high actuation point, effectively creating a custom deadband or differential zone for your control sequence.

What type of tubing should be used for the pressure connections?
The integrated 1/4" compression fittings are designed for firm-wall tubing, such as copper, aluminum, or rigid plastic. If using flexible slip-on tubing, appropriate adapters are required.

Can this switch be used in sub-zero environments?
Yes, the DDP-106 is engineered with an operating temperature range that extends down to -40°F, making it suitable for rooftop units and unconditioned mechanical rooms.

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.