Description
The Cleveland Controls AFS-155-163 is a dependable air proving switch engineered to verify and confirm airflow in commercial and industrial HVAC systems. By sensing differential air pressure across a fan or blower, this switch provides a critical safety interlock — ensuring equipment operates only when adequate airflow is present. It is a trusted solution for protecting heat exchangers, burners, and other downstream components from damage caused by insufficient or absent airflow.
Key Features
- Senses differential air pressure to confirm fan and blower operation
- Provides a safety interlock to prevent equipment operation without proper airflow
- Suitable for commercial and industrial HVAC applications
- Compact, durable construction for long-term reliability
- Designed for easy field installation and wiring
- Helps protect heat exchangers, burners, and downstream HVAC components
Application
The AFS-155-163 is ideal for use in air handling units, furnaces, rooftop units, and other forced-air HVAC systems where airflow verification is required. It integrates seamlessly into control circuits to confirm that fans and blowers are operating at the required capacity before allowing downstream equipment to energize.
Why Choose Cleveland Controls
Cleveland Controls has a long-standing reputation for producing high-quality pressure and airflow sensing devices for the HVAC and building automation industries. The AFS series air proving switches are widely specified by engineers and trusted by contractors for their accuracy, durability, and ease of installation.
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