
Cleveland Controls NS2-1334-00 Pressure Switch
The Cleveland Controls NS2-1334-00 Pressure Switch is a critical safety and operational component designed for high-accuracy air pressure sensing in commercial and residential HVAC systems. Built with a glass-filled polycarbonate body for maximum thermal stability, this switch is engineered to monitor positive, negative, or differential pressure. It is a preferred OEM replacement part for high-efficiency equipment, including A.O. Smith Cyclone and Vertex water heaters (specifically MPN 100085450), as well as various furnaces and air handlers. The integrated sensing diaphragm and snap-acting switch respond to minute changes in airflow, ensuring the inducer motor or ventilation system is operating within safe inch water column (wc) parameters before ignition or continuous operation.
This HVAC air pressure switch features color-coded ports (Black for positive/P1, Gray for negative/P2) to simplify differential pressure switch installation and reduce field errors. Capable of handling operating temperatures from -40°F to 190°F, the NS2-1334-00 provides a narrow switching differential and low set point tolerance. It utilizes 90-degree male quick-connect terminals and includes a mounting bracket, allowing for versatile positioning in space-constrained cabinets. For contractors and technicians, this switch offers a reliable 100,000-cycle minimum lifespan, maintaining system safety and performance across demanding industrial and commercial cycles.
Key Benefits for Contractors
- Precise Pressure Detection: Specifically calibrated for high-performance HVAC and water heater applications, ensuring accurate draft induction sensing.
- Rugged Enclosure: The glass-filled polycarbonate housing resists warping and environmental degradation in high-heat equipment vestibules.
- Broad Compatibility: Serves as a direct OEM cross-reference for major brands like A.O. Smith, State, and American Water Heaters.
- Streamlined Setup: Features integrated slip-on connectors and an included bracket for rapid field replacement and secure mounting.
- Versatile Sensing: Fully capable of monitoring positive, vacuum, or differential air pressure for comprehensive system monitoring.
Common Questions
Is the set point on the NS2-1334-00 adjustable?
While the NS2 series includes adjustable models, the NS2-1334-00 is typically provided as a factory-calibrated component to meet specific OEM safety requirements. Always verify the fixed set point on your existing switch before replacement.
What are the electrical ratings for this switch?
This unit features standard silver contacts and is generally rated for 24V AC (28 VA pilot duty) or 120V AC (125 VA pilot duty) applications, making it suitable for most control circuits.
How should the unit be oriented during installation?
For maximum accuracy, the switch should be mounted with the diaphragm vertical. Avoid mounting with the sample line connections pointing upward to prevent moisture or condensate accumulation in the sensing chamber.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Cleveland Controls NS2-1334-00 Pressure Switch
The Cleveland Controls NS2-1334-00 Pressure Switch is a critical safety and operational component designed for high-accuracy air pressure sensing in commercial and residential HVAC systems. Built with a glass-filled polycarbonate body for maximum thermal stability, this switch is engineered to monitor positive, negative, or differential pressure. It is a preferred OEM replacement part for high-efficiency equipment, including A.O. Smith Cyclone and Vertex water heaters (specifically MPN 100085450), as well as various furnaces and air handlers. The integrated sensing diaphragm and snap-acting switch respond to minute changes in airflow, ensuring the inducer motor or ventilation system is operating within safe inch water column (wc) parameters before ignition or continuous operation.
This HVAC air pressure switch features color-coded ports (Black for positive/P1, Gray for negative/P2) to simplify differential pressure switch installation and reduce field errors. Capable of handling operating temperatures from -40°F to 190°F, the NS2-1334-00 provides a narrow switching differential and low set point tolerance. It utilizes 90-degree male quick-connect terminals and includes a mounting bracket, allowing for versatile positioning in space-constrained cabinets. For contractors and technicians, this switch offers a reliable 100,000-cycle minimum lifespan, maintaining system safety and performance across demanding industrial and commercial cycles.
Key Benefits for Contractors
- Precise Pressure Detection: Specifically calibrated for high-performance HVAC and water heater applications, ensuring accurate draft induction sensing.
- Rugged Enclosure: The glass-filled polycarbonate housing resists warping and environmental degradation in high-heat equipment vestibules.
- Broad Compatibility: Serves as a direct OEM cross-reference for major brands like A.O. Smith, State, and American Water Heaters.
- Streamlined Setup: Features integrated slip-on connectors and an included bracket for rapid field replacement and secure mounting.
- Versatile Sensing: Fully capable of monitoring positive, vacuum, or differential air pressure for comprehensive system monitoring.
Common Questions
Is the set point on the NS2-1334-00 adjustable?
While the NS2 series includes adjustable models, the NS2-1334-00 is typically provided as a factory-calibrated component to meet specific OEM safety requirements. Always verify the fixed set point on your existing switch before replacement.
What are the electrical ratings for this switch?
This unit features standard silver contacts and is generally rated for 24V AC (28 VA pilot duty) or 120V AC (125 VA pilot duty) applications, making it suitable for most control circuits.
How should the unit be oriented during installation?
For maximum accuracy, the switch should be mounted with the diaphragm vertical. Avoid mounting with the sample line connections pointing upward to prevent moisture or condensate accumulation in the sensing chamber.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
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Description
The Cleveland Controls NS2-1334-00 Pressure Switch is a critical safety and operational component designed for high-accuracy air pressure sensing in commercial and residential HVAC systems. Built with a glass-filled polycarbonate body for maximum thermal stability, this switch is engineered to monitor positive, negative, or differential pressure. It is a preferred OEM replacement part for high-efficiency equipment, including A.O. Smith Cyclone and Vertex water heaters (specifically MPN 100085450), as well as various furnaces and air handlers. The integrated sensing diaphragm and snap-acting switch respond to minute changes in airflow, ensuring the inducer motor or ventilation system is operating within safe inch water column (wc) parameters before ignition or continuous operation.
This HVAC air pressure switch features color-coded ports (Black for positive/P1, Gray for negative/P2) to simplify differential pressure switch installation and reduce field errors. Capable of handling operating temperatures from -40°F to 190°F, the NS2-1334-00 provides a narrow switching differential and low set point tolerance. It utilizes 90-degree male quick-connect terminals and includes a mounting bracket, allowing for versatile positioning in space-constrained cabinets. For contractors and technicians, this switch offers a reliable 100,000-cycle minimum lifespan, maintaining system safety and performance across demanding industrial and commercial cycles.
Key Benefits for Contractors
- Precise Pressure Detection: Specifically calibrated for high-performance HVAC and water heater applications, ensuring accurate draft induction sensing.
- Rugged Enclosure: The glass-filled polycarbonate housing resists warping and environmental degradation in high-heat equipment vestibules.
- Broad Compatibility: Serves as a direct OEM cross-reference for major brands like A.O. Smith, State, and American Water Heaters.
- Streamlined Setup: Features integrated slip-on connectors and an included bracket for rapid field replacement and secure mounting.
- Versatile Sensing: Fully capable of monitoring positive, vacuum, or differential air pressure for comprehensive system monitoring.
Common Questions
Is the set point on the NS2-1334-00 adjustable?
While the NS2 series includes adjustable models, the NS2-1334-00 is typically provided as a factory-calibrated component to meet specific OEM safety requirements. Always verify the fixed set point on your existing switch before replacement.
What are the electrical ratings for this switch?
This unit features standard silver contacts and is generally rated for 24V AC (28 VA pilot duty) or 120V AC (125 VA pilot duty) applications, making it suitable for most control circuits.
How should the unit be oriented during installation?
For maximum accuracy, the switch should be mounted with the diaphragm vertical. Avoid mounting with the sample line connections pointing upward to prevent moisture or condensate accumulation in the sensing chamber.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.












