Source1 2436217000 Air Pressure Switch 0.20 Inches Water Column on Fall Spno

Product Description

The Source1 2436217000 is an air pressure switch designed for use in HVAC systems where precise pressure monitoring is required. This switch operates on a fall activation principle, meaning it closes or opens the circuit when air pressure drops to the set point. The set point for this switch is 0.20 inches water column, which is a common threshold used in furnace, air handler, and ventilation control circuits. The switch is configured as Single Pole Normally Open, also known as SPNO, which means the electrical contacts remain open under normal conditions and close when the pressure falls to the trigger level. HVAC technicians rely on pressure switches like this one to confirm proper airflow, verify inducer motor operation, and protect heat exchangers from damage caused by blocked flues or restricted combustion air. When the inducer fan fails or airflow drops, the pressure switch prevents the system from attempting ignition, reducing the risk of unsafe operation. The Source1 2436217000 is a direct replacement part suited for field service work on residential and light commercial heating systems. It is compact and built to handle the electrical loads typical in low-voltage HVAC control circuits. Technicians working on furnaces, boilers, or air handling units will find this switch easy to identify, test, and replace. Using the correct pressure switch with the right set point and switching action is critical to system safety and reliability. The 0.20 inches water column set point and on-fall SPNO configuration make this switch compatible with a specific range of equipment, so always confirm the replacement matches the original specification before installation.

• Set point of 0.20 inches water column for accurate low-pressure detection in HVAC control circuits
• On-fall activation closes the circuit when pressure drops, protecting furnace and air handler systems from unsafe ignition
• Single Pole Normally Open configuration compatible with standard low-voltage HVAC control wiring

Product Highlights

The Source1 2436217000 air pressure switch provides reliable low-pressure detection at 0.20 inches water column with an SPNO on-fall design, making it a direct field replacement for HVAC furnace and air handler safety circuits.

Product Information

Standard Information

• Brand: SOURCE1
• Manufacturer Part Number: 2436217000

Technical Specifications

• Switch Type: Air Pressure Switch
• Set Point: 0.20 inches water column
• Activation: On Fall
• Configuration: Single Pole Normally Open (SPNO)
• Application: HVAC Furnace and Air Handler Control Circuits