Cleveland Controls DDP-109-436 Sensing Switch
The Cleveland Controls DDP-109-436 is a heavy-duty, general-purpose differential air pressure sensing switch designed for critical HVAC and energy management applications. This dual set point pressure switch features two independently adjustable SPDT snap-acting switches mounted on a common foot bracket, allowing technicians to establish a precise "deadband" for complex control circuits. With a versatile operating range of 0.05" ± .02" to 2.0" w.c., it excels at measuring static pressure and air flow in systems using air or non-corrosive combustion by-products. The dual switching action enables simultaneous monitoring of two pressure sources, triggering contacts on decreasing pressure at 0.20" w.c. and increasing pressure at 1.35" w.c. Engineered for durability, the unit features a silicone diaphragm and zinc-plated steel housing, rated for 120V to 277V AC. For a reliable installation, ensure the diaphragm vertical mounting position is maintained to prevent set-point drift and optimize sensitivity across the entire pressure scale.
Key Benefits- Independent Dual Switching: Features two separately operated SPDT switches for high/low actuation and alarm functions.
- Precise Pressure Calibration: Field-adjustable set points ranging from 0.05" to 2.0" w.c. for granular system control.
- Robust Construction: Equipped with NEMA 1 rated enclosure covers to prevent accidental contact with live terminals and adjustment screws.
- Flexible Sampling: Built-in 1/4" OD compression fittings compatible with rigid or semi-rigid copper, aluminum, or plastic tubing.
- Broad Electrical Compatibility: Pilot duty rated up to 277 VAC, making it suitable for a wide array of industrial and commercial controllers.
How do I plumb the DDP-109-436 for differential pressure?
Connect the higher-pressure sample line to the common "H" inlet on the foot bracket and the lower-pressure (or negative) sample to the "L" inlet on the specific switch element being utilized.
Can this switch be mounted in any orientation?
No. To maintain the accuracy of the specified lowest operating set point, the switch must be mounted with the diaphragm in a vertical plane. Avoid mounting with sample line connections facing upward to prevent moisture accumulation.
What media is compatible with the internal sensor?
The internal silicone diaphragm is designed for use with air and combustion by-products that do not degrade silicone. It is not intended for use with combustible gases or liquids.
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.
Original: $89.13
-65%$89.13
$31.20Cleveland Controls DDP-109-436 Sensing Switch
The Cleveland Controls DDP-109-436 is a heavy-duty, general-purpose differential air pressure sensing switch designed for critical HVAC and energy management applications. This dual set point pressure switch features two independently adjustable SPDT snap-acting switches mounted on a common foot bracket, allowing technicians to establish a precise "deadband" for complex control circuits. With a versatile operating range of 0.05" ± .02" to 2.0" w.c., it excels at measuring static pressure and air flow in systems using air or non-corrosive combustion by-products. The dual switching action enables simultaneous monitoring of two pressure sources, triggering contacts on decreasing pressure at 0.20" w.c. and increasing pressure at 1.35" w.c. Engineered for durability, the unit features a silicone diaphragm and zinc-plated steel housing, rated for 120V to 277V AC. For a reliable installation, ensure the diaphragm vertical mounting position is maintained to prevent set-point drift and optimize sensitivity across the entire pressure scale.
Key Benefits- Independent Dual Switching: Features two separately operated SPDT switches for high/low actuation and alarm functions.
- Precise Pressure Calibration: Field-adjustable set points ranging from 0.05" to 2.0" w.c. for granular system control.
- Robust Construction: Equipped with NEMA 1 rated enclosure covers to prevent accidental contact with live terminals and adjustment screws.
- Flexible Sampling: Built-in 1/4" OD compression fittings compatible with rigid or semi-rigid copper, aluminum, or plastic tubing.
- Broad Electrical Compatibility: Pilot duty rated up to 277 VAC, making it suitable for a wide array of industrial and commercial controllers.
How do I plumb the DDP-109-436 for differential pressure?
Connect the higher-pressure sample line to the common "H" inlet on the foot bracket and the lower-pressure (or negative) sample to the "L" inlet on the specific switch element being utilized.
Can this switch be mounted in any orientation?
No. To maintain the accuracy of the specified lowest operating set point, the switch must be mounted with the diaphragm in a vertical plane. Avoid mounting with sample line connections facing upward to prevent moisture accumulation.
What media is compatible with the internal sensor?
The internal silicone diaphragm is designed for use with air and combustion by-products that do not degrade silicone. It is not intended for use with combustible gases or liquids.
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.
Product Information
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Description
The Cleveland Controls DDP-109-436 is a heavy-duty, general-purpose differential air pressure sensing switch designed for critical HVAC and energy management applications. This dual set point pressure switch features two independently adjustable SPDT snap-acting switches mounted on a common foot bracket, allowing technicians to establish a precise "deadband" for complex control circuits. With a versatile operating range of 0.05" ± .02" to 2.0" w.c., it excels at measuring static pressure and air flow in systems using air or non-corrosive combustion by-products. The dual switching action enables simultaneous monitoring of two pressure sources, triggering contacts on decreasing pressure at 0.20" w.c. and increasing pressure at 1.35" w.c. Engineered for durability, the unit features a silicone diaphragm and zinc-plated steel housing, rated for 120V to 277V AC. For a reliable installation, ensure the diaphragm vertical mounting position is maintained to prevent set-point drift and optimize sensitivity across the entire pressure scale.
Key Benefits- Independent Dual Switching: Features two separately operated SPDT switches for high/low actuation and alarm functions.
- Precise Pressure Calibration: Field-adjustable set points ranging from 0.05" to 2.0" w.c. for granular system control.
- Robust Construction: Equipped with NEMA 1 rated enclosure covers to prevent accidental contact with live terminals and adjustment screws.
- Flexible Sampling: Built-in 1/4" OD compression fittings compatible with rigid or semi-rigid copper, aluminum, or plastic tubing.
- Broad Electrical Compatibility: Pilot duty rated up to 277 VAC, making it suitable for a wide array of industrial and commercial controllers.
How do I plumb the DDP-109-436 for differential pressure?
Connect the higher-pressure sample line to the common "H" inlet on the foot bracket and the lower-pressure (or negative) sample to the "L" inlet on the specific switch element being utilized.
Can this switch be mounted in any orientation?
No. To maintain the accuracy of the specified lowest operating set point, the switch must be mounted with the diaphragm in a vertical plane. Avoid mounting with sample line connections facing upward to prevent moisture accumulation.
What media is compatible with the internal sensor?
The internal silicone diaphragm is designed for use with air and combustion by-products that do not degrade silicone. It is not intended for use with combustible gases or liquids.
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.
