Cleveland Controls NS2-0221-00 Pressure Switch
The Cleveland Controls NS2-0221-00 is a high-performance air pressure sensing switch designed for residential and light commercial HVAC furnace applications. This fixed set point pressure switch is factory-calibrated to actuate at 1.35" w.c. on a pressure rise, ensuring precise monitoring of combustion air and flue gas flow. Featuring SPDT (Single Pole Double Throw) switching logic, the unit allows for versatile wiring configurations in both normally open and normally closed circuits. Built for reliability in demanding environments, the NS2 series air switch utilizes a silicone diaphragm and robust housing to maintain accuracy across fluctuating temperature ranges. The integrated mounting bracket simplifies field installation and replacement, ensuring a secure fit within the blower housing or burner assembly. For contractors troubleshooting ignition failure or pressure fault codes, this Cleveland Controls pressure switch provides the exact OEM-specified resistance and switching threshold required for safe burner operation.
Key Technical Benefits
- Factory Calibrated Precision: Set at 1.35" w.c. to meet strict OEM airflow safety requirements and prevent nuisance tripping.
- SPDT Contact Configuration: Supports multiple control circuit strategies for furnace draft inducer monitoring.
- Durable Construction: Engineered with high-grade materials to resist moisture and heat degradation within the mechanical cabinet.
- Streamlined Installation: Compact design with a pre-installed vertical mounting bracket for rapid service calls.
- Optimized Sensing: Designed for high-sensitivity detection of static pressure changes in critical venting systems.
Common Technical Questions
Can the 1.35" w.c. set point be adjusted in the field?
No, the NS2-0221-00 is a fixed-calibration switch. Altering the set point can compromise furnace safety protocols and void the UL/CSA listing for the specific appliance it serves.
How do I diagnose a failing NS2-0221-00 pressure switch?
Verify the inducer motor is reaching full RPM and the sensing lines are clear of condensate. Use a manometer to confirm the system is generating at least 1.35" w.c. If pressure is sufficient but the SPDT contacts fail to close, the internal diaphragm or electrical contacts have likely failed.
What is the purpose of the third terminal on this SPDT switch?
The SPDT layout provides a common, a normally open (NO), and a normally closed (NC) terminal. This allows the control board to verify that the switch is in the "open" position before the inducer starts, ensuring the contacts aren't stuck closed.
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 NS2-0221-00 Pressure Switch
The Cleveland Controls NS2-0221-00 is a high-performance air pressure sensing switch designed for residential and light commercial HVAC furnace applications. This fixed set point pressure switch is factory-calibrated to actuate at 1.35" w.c. on a pressure rise, ensuring precise monitoring of combustion air and flue gas flow. Featuring SPDT (Single Pole Double Throw) switching logic, the unit allows for versatile wiring configurations in both normally open and normally closed circuits. Built for reliability in demanding environments, the NS2 series air switch utilizes a silicone diaphragm and robust housing to maintain accuracy across fluctuating temperature ranges. The integrated mounting bracket simplifies field installation and replacement, ensuring a secure fit within the blower housing or burner assembly. For contractors troubleshooting ignition failure or pressure fault codes, this Cleveland Controls pressure switch provides the exact OEM-specified resistance and switching threshold required for safe burner operation.
Key Technical Benefits
- Factory Calibrated Precision: Set at 1.35" w.c. to meet strict OEM airflow safety requirements and prevent nuisance tripping.
- SPDT Contact Configuration: Supports multiple control circuit strategies for furnace draft inducer monitoring.
- Durable Construction: Engineered with high-grade materials to resist moisture and heat degradation within the mechanical cabinet.
- Streamlined Installation: Compact design with a pre-installed vertical mounting bracket for rapid service calls.
- Optimized Sensing: Designed for high-sensitivity detection of static pressure changes in critical venting systems.
Common Technical Questions
Can the 1.35" w.c. set point be adjusted in the field?
No, the NS2-0221-00 is a fixed-calibration switch. Altering the set point can compromise furnace safety protocols and void the UL/CSA listing for the specific appliance it serves.
How do I diagnose a failing NS2-0221-00 pressure switch?
Verify the inducer motor is reaching full RPM and the sensing lines are clear of condensate. Use a manometer to confirm the system is generating at least 1.35" w.c. If pressure is sufficient but the SPDT contacts fail to close, the internal diaphragm or electrical contacts have likely failed.
What is the purpose of the third terminal on this SPDT switch?
The SPDT layout provides a common, a normally open (NO), and a normally closed (NC) terminal. This allows the control board to verify that the switch is in the "open" position before the inducer starts, ensuring the contacts aren't stuck closed.
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
Shipping & Returns
Shipping & Returns
Description
The Cleveland Controls NS2-0221-00 is a high-performance air pressure sensing switch designed for residential and light commercial HVAC furnace applications. This fixed set point pressure switch is factory-calibrated to actuate at 1.35" w.c. on a pressure rise, ensuring precise monitoring of combustion air and flue gas flow. Featuring SPDT (Single Pole Double Throw) switching logic, the unit allows for versatile wiring configurations in both normally open and normally closed circuits. Built for reliability in demanding environments, the NS2 series air switch utilizes a silicone diaphragm and robust housing to maintain accuracy across fluctuating temperature ranges. The integrated mounting bracket simplifies field installation and replacement, ensuring a secure fit within the blower housing or burner assembly. For contractors troubleshooting ignition failure or pressure fault codes, this Cleveland Controls pressure switch provides the exact OEM-specified resistance and switching threshold required for safe burner operation.
Key Technical Benefits
- Factory Calibrated Precision: Set at 1.35" w.c. to meet strict OEM airflow safety requirements and prevent nuisance tripping.
- SPDT Contact Configuration: Supports multiple control circuit strategies for furnace draft inducer monitoring.
- Durable Construction: Engineered with high-grade materials to resist moisture and heat degradation within the mechanical cabinet.
- Streamlined Installation: Compact design with a pre-installed vertical mounting bracket for rapid service calls.
- Optimized Sensing: Designed for high-sensitivity detection of static pressure changes in critical venting systems.
Common Technical Questions
Can the 1.35" w.c. set point be adjusted in the field?
No, the NS2-0221-00 is a fixed-calibration switch. Altering the set point can compromise furnace safety protocols and void the UL/CSA listing for the specific appliance it serves.
How do I diagnose a failing NS2-0221-00 pressure switch?
Verify the inducer motor is reaching full RPM and the sensing lines are clear of condensate. Use a manometer to confirm the system is generating at least 1.35" w.c. If pressure is sufficient but the SPDT contacts fail to close, the internal diaphragm or electrical contacts have likely failed.
What is the purpose of the third terminal on this SPDT switch?
The SPDT layout provides a common, a normally open (NO), and a normally closed (NC) terminal. This allows the control board to verify that the switch is in the "open" position before the inducer starts, ensuring the contacts aren't stuck closed.
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.
