Description
The Cleveland Controls AFS-275-112 is a precision air pressure sensing switch engineered for reliable performance in HVAC, combustion, and ventilation control applications. Designed to detect and respond to changes in air pressure, this switch is built to operate safely with air or combustion by-products that will not degrade silicone, making it well-suited for use in furnaces, air handlers, draft inducers, and other combustion-related equipment.
Key Specifications
- Sensing Range: 0.05″ w.c. ± 0.02″ w.c. to 2″ w.c.
- Supply Voltage: 120V–277Vac
- Maximum Pressure: 1/2 PSI (0.5 PSI)
- Compatible Media: Air or combustion by-products that will not degrade silicone
- SKU / Part Number: AFS-275-112
- Brand: Cleveland Controls
Features & Benefits
- Wide sensing range from 0.05″ w.c. to 2″ w.c. for versatile application coverage
- Broad voltage compatibility (120V–277Vac) simplifies integration into commercial and residential systems
- Silicone-compatible media rating ensures long-term durability in combustion environments
- Low maximum pressure rating (1/2 PSI) provides precise, low-differential pressure detection
- Suitable for draft proving, airflow verification, and combustion safety interlock applications
- Compact, purpose-built design for straightforward installation and replacement
Typical Applications
- Draft inducer and induced-draft furnace pressure proving
- Air handler and blower airflow verification
- Combustion safety interlocks
- Ventilation system monitoring
- Boiler and burner control systems
The AFS-275-112 from Cleveland Controls delivers dependable pressure sensing performance across a wide operating voltage range, making it a go-to solution for HVAC technicians and controls engineers who need accurate, low-differential pressure switching in combustion and air-handling environments.
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