The Cleveland Controls DFS-448-452 is a dependable air pressure sensing switch engineered for use in commercial and residential HVAC applications. Designed to detect the presence or absence of airflow, this switch plays a critical role in system safety and operational efficiency — ensuring equipment operates only when proper airflow conditions are confirmed.
Key Features
- Senses air pressure differentials to confirm airflow in duct and air-handling systems
- Provides reliable switching action for fan proving, filter monitoring, and safety interlock applications
- Compact, rugged construction suited for demanding HVAC environments
- Easy field installation with straightforward pressure port connections
- Designed for long service life with minimal maintenance requirements
Typical Applications
- Fan proving and air handler verification
- Dirty filter detection and alerts
- Safety interlocks for furnaces, air handlers, and rooftop units
- Commercial and light industrial HVAC systems
Why Choose Cleveland Controls
Cleveland Controls has a long-standing reputation for manufacturing high-quality pressure and flow sensing devices for the HVAC and building automation industries. The DFS series air pressure sensing switches are trusted by contractors and engineers for their accuracy, durability, and ease of installation.
Product Details
- Brand: Cleveland Controls
- Model / SKU: DFS-448-452
- Type: Air Pressure Sensing Switch
- Application: HVAC airflow detection and safety interlock
