The MPL 9371VO-BS-0046 is a furnace air pressure switch designed to monitor and verify proper airflow within HVAC systems. This component ensures the inducer motor generates the correct vacuum level for safe combustion and exhaust operation. It plays a critical role in maintaining furnace safety and performance reliability.
| Condition | New/Never Used Surplus |
| Brand | MPL |
| Category | HVAC Controls |
| Part Number | 9371VO-BS-0046 |
| Subcategory | Pressure Switches |
| Pressure Set Point | -1.50" WC |
| Switch Type | Air Pressure Safety Switch |
| Application | Gas Furnaces |
| Mounting Type | Internal Furnace Mount |
| Contact Configuration | SPST (Single Pole Single Throw) |
| Electrical Connection | Quick Connect Terminals |
| Sensing Method | Diaphragm-Based |
| Operating Temperature Range | Typical Furnace Operating Range |
| Material Construction | High-Temperature Resistant Plastic & Metal Components |
| Function | Draft Verification / Safety Interlock |
| Weight | 0.25 lb |
The 9371VO-BS-0046 is a precision-engineered air pressure switch used in residential and light commercial furnace systems. It is typically installed within the furnace housing to detect negative pressure created by the inducer motor during operation. Built with a durable diaphragm and calibrated sensing mechanism, it ensures accurate pressure response at a set point of -1.50 inches of water column. This switch is compatible with a wide range of gas furnaces and integrates easily into existing HVAC control circuits, supporting safe ignition and proper venting conditions.
Key Features:
The 9371VO-BS-0046 delivers the reliability and precision required for safe furnace airflow monitoring and combustion control.