Description
The Cleveland Controls DFS-221-156 Air Pressure Sensing Switch is a dependable differential air pressure sensing device engineered for use in commercial and industrial HVAC applications. Designed to monitor and respond to changes in air pressure across fans, blowers, filters, and ductwork, this switch provides a critical layer of system protection and operational verification.
Key Features
- Differential air pressure sensing design for accurate detection across system components
- Reliable switching action ensures proper fan and blower operation confirmation
- Compact, rugged housing suitable for demanding HVAC environments
- Easy field installation with straightforward pneumatic port connections
- Ideal for use with air handling units, rooftop units, and ventilation systems
- Helps protect equipment by detecting filter blockages, fan failures, and airflow loss
Common Applications
- Fan and blower proof-of-operation verification
- Dirty filter detection and monitoring
- Duct static pressure control
- Commercial and industrial air handling systems
- Building automation and HVAC control integration
Why Choose Cleveland Controls
Cleveland Controls has a long-standing reputation for manufacturing high-quality pressure and flow sensing switches trusted by HVAC professionals across North America. The DFS series is specifically engineered to deliver consistent, repeatable performance in air pressure monitoring applications, making the DFS-221-156 a go-to solution for contractors and engineers who demand reliability in the field.
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