Description
The Cleveland Controls NS2-1821-00 is a single-port air pressure switch designed to monitor and verify airflow conditions in HVAC systems. Factory set at a 1.30″ water column (WC) setpoint, this switch provides dependable pressure sensing to protect equipment and ensure safe, efficient operation.
Product Overview
The NS2 series from Cleveland Controls is a trusted line of differential air pressure switches widely used in commercial and residential HVAC applications. The NS2-1821-00 is engineered to detect the presence or absence of airflow, making it an ideal choice for use with furnaces, air handlers, draft inducers, and ventilation equipment. When system pressure falls below or rises above the calibrated setpoint, the switch actuates to signal a control board or safety circuit.
Key Features
- Factory-set at 1.30″ water column (WC) setpoint
- Single-port pressure switch design for straightforward installation
- Reliable switching action for airflow proving and safety shutoff
- Compact, durable housing suitable for OEM and replacement applications
- Compatible with a wide range of HVAC control boards and safety circuits
- Designed for use in furnaces, air handlers, and draft inducer assemblies
Typical Applications
- Furnace draft inducer proving switches
- Air handler airflow verification
- Ventilation and exhaust fan monitoring
- OEM equipment replacement
Why Choose Cleveland Controls
Cleveland Controls has been a leading manufacturer of air and water pressure switches for the HVAC industry for decades. The NS2 series is known for its consistent performance, long service life, and broad compatibility with major equipment brands. The NS2-1821-00 is a direct OEM-style replacement that meets the demands of professional HVAC technicians and contractors.
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