Description
The Cleveland Controls AFS-A-173 is a precision-engineered air pressure sensing switch designed for reliable performance in HVAC, combustion, and air-handling applications. Built to change contacts on increasing pressure, this switch delivers accurate, repeatable operation across a wide sensing range — making it an ideal solution for proving airflow, monitoring draft, and protecting combustion equipment.
Key Features
- Changes contacts on increasing pressure for positive system verification
- Wide sensing range: .05″ ± 0.02″ w.c. to 12″ w.c.
- Broad voltage compatibility: 120V–277Vac for flexible installation across commercial and residential systems
- Maximum pressure rating: ½ PSI, ensuring safe operation within typical HVAC pressure ranges
- Compatible with air and combustion by-products that will not degrade silicone — suitable for use in combustion proving and flue gas monitoring environments
- Silicone-compatible wetted materials for long-term durability in demanding applications
Specifications
- Model: AFS-A-173
- Brand: Cleveland Controls
- Sensing Range: .05″ ± 0.02″ w.c. to 12″ w.c.
- Voltage: 120V–277Vac
- Maximum Pressure: ½ PSI
- Media Compatibility: Air or combustion by-products that will not degrade silicone
- Contact Action: Change on increasing pressure
Applications
- Combustion air proving in furnaces and boilers
- Draft inducer and blower airflow verification
- Air handling unit and duct pressure monitoring
- Safety interlock circuits requiring pressure confirmation
The AFS-A-173 is a dependable, field-proven pressure switch from Cleveland Controls — a trusted name in HVAC sensing and control. Its wide voltage range and broad pressure span make it a versatile choice for OEM and replacement applications alike.
Reviews
There are no reviews yet.