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Rheem 42-101956-04 Furnace Air Pressure Switch -1.50" WC Draft Safety Control
- Regular price
- $77.00
- Sale price
- $77.00
- Regular price
-
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Product Description P/N: 42-101956-04
Description
The Rheem 42-101956-04 is a furnace air pressure switch designed to monitor draft conditions at a calibrated setpoint of -1.50" WC. It ensures safe furnace operation by verifying that the inducer motor is creating proper airflow before ignition. This component is used in Rheem and Ruud gas furnace systems for dependable safety control.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Rheem |
| Category | HVAC Controls |
| Part Number | 42-101956-04 |
| Subcategory | Pressure Switches |
| Pressure Set Point | -1.50" WC |
| Switch Type | Air Pressure Safety Switch |
| Application | Gas Furnaces |
| Contact Configuration | SPST |
| Mounting Type | Internal Furnace Mount |
| Port Configuration | Single or Dual Port (Model Dependent) |
| Material Construction | High-Temperature Resistant Plastic & Metal |
| Function | Draft Verification / Safety Interlock |
| Operating Temperature Range | Typical Furnace Operating Range |
| Electrical Connection | Quick Connect Terminals |
| Weight | 0.28 lb |
Information About 42-101956-04
The 42-101956-04 is a precision air pressure switch developed for Rheem and Ruud HVAC systems, specifically for gas furnace safety applications. It functions by detecting negative pressure within the venting system, confirming that combustion gases can be safely exhausted before allowing burner operation. Built with a responsive diaphragm mechanism and factory-calibrated to -1.50 inches water column, it delivers accurate and repeatable switching performance. This switch is designed for direct OEM replacement, ensuring compatibility with designated furnace models while maintaining system safety and operational integrity.
Key Features:
- Calibrated Pressure Setpoint: Factory set to -1.50" WC for accurate draft verification
- Furnace Safety Function: Prevents ignition if proper airflow conditions are not met
- OEM Replacement Component: Designed for Rheem and Ruud furnace systems
- Reliable Diaphragm Design: Ensures consistent pressure sensing over time
- HVAC System Compatibility: Suitable for a range of residential gas furnaces
- Durable Construction: Built for long-term operation in furnace environments
- Electrical Switching Stability: Provides dependable open/close contact response
- Compact Design: Fits easily within furnace housings
- Easy Installation: Compatible with standard tubing and wiring connections
- Moisture-Resistant Materials: Designed for use in condensate-prone environments
- Critical Safety Device: Requires exact pressure rating for proper system function
The 42-101956-04 delivers the reliability and precision required for safe furnace draft monitoring and combustion control.
Description
The Rheem 42-101956-04 is a furnace air pressure switch designed to monitor draft conditions at a calibrated setpoint of -1.50" WC. It ensures safe furnace operation by verifying that the inducer motor is creating proper airflow before ignition. This component is used in Rheem and Ruud gas furnace systems for dependable safety control.
Technical Specifications
| Condition | New/Never Used Surplus |
| Brand | Rheem |
| Category | HVAC Controls |
| Part Number | 42-101956-04 |
| Subcategory | Pressure Switches |
| Pressure Set Point | -1.50" WC |
| Switch Type | Air Pressure Safety Switch |
| Application | Gas Furnaces |
| Contact Configuration | SPST |
| Mounting Type | Internal Furnace Mount |
| Port Configuration | Single or Dual Port (Model Dependent) |
| Material Construction | High-Temperature Resistant Plastic & Metal |
| Function | Draft Verification / Safety Interlock |
| Operating Temperature Range | Typical Furnace Operating Range |
| Electrical Connection | Quick Connect Terminals |
| Weight | 0.28 lb |
Information About 42-101956-04
The 42-101956-04 is a precision air pressure switch developed for Rheem and Ruud HVAC systems, specifically for gas furnace safety applications. It functions by detecting negative pressure within the venting system, confirming that combustion gases can be safely exhausted before allowing burner operation. Built with a responsive diaphragm mechanism and factory-calibrated to -1.50 inches water column, it delivers accurate and repeatable switching performance. This switch is designed for direct OEM replacement, ensuring compatibility with designated furnace models while maintaining system safety and operational integrity.
Key Features:
- Calibrated Pressure Setpoint: Factory set to -1.50" WC for accurate draft verification
- Furnace Safety Function: Prevents ignition if proper airflow conditions are not met
- OEM Replacement Component: Designed for Rheem and Ruud furnace systems
- Reliable Diaphragm Design: Ensures consistent pressure sensing over time
- HVAC System Compatibility: Suitable for a range of residential gas furnaces
- Durable Construction: Built for long-term operation in furnace environments
- Electrical Switching Stability: Provides dependable open/close contact response
- Compact Design: Fits easily within furnace housings
- Easy Installation: Compatible with standard tubing and wiring connections
- Moisture-Resistant Materials: Designed for use in condensate-prone environments
- Critical Safety Device: Requires exact pressure rating for proper system function
The 42-101956-04 delivers the reliability and precision required for safe furnace draft monitoring and combustion control.