Laars Heating Systems R2076600 Pressure Switch
The Laars Heating Systems R2076600 Pressure Switch is a critical safety and operational component designed for high-efficiency hydronic systems, specifically the Laars Pennant and Mighty Therm II series. Calibrated at 1.05" WC (Water Column), this PR-V pressure switch serves as a blower-proving mechanism, ensuring that the combustion fan is generating sufficient airflow before the ignition sequence initiates. For contractors servicing commercial boilers or volume water heaters, this part is a direct OEM replacement for the legacy part number E0255500, maintaining the integrity of the safety chain. It effectively monitors the differential pressure between the combustion chamber and the atmosphere, preventing hazardous flue gas buildup or incomplete combustion. Its compact, lightweight design allows for straightforward integration into existing control circuits, providing reliable pressure regulation and system protection against pressure spikes or venting obstructions. When troubleshooting a boiler not firing, verify the 1.05" WC setpoint with a digital manometer to confirm this switch is the root cause before replacement.
Key Benefits
- System Compatibility: Engineered specifically for Laars Pennant (PNCH/PNCV) and Mighty Therm II (MT2) units to ensure seamless HVAC part integration.
- Precision Calibration: Factory-set at 1.05" WC to provide accurate airflow verification for consistent ignition and high-efficiency performance.
- Direct Replacement: Replaces Laars E0255500, allowing for a 1:1 swap without the need for mounting modifications in the field.
- Durable Construction: Built to withstand the high-temperature environment of commercial boiler cabinets, reducing premature failure from heat stress.
- Enhanced Safety: Acts as a primary safety switch, preventing gas valve activation if proper venting parameters are not met.
Common Questions
What are the symptoms of a failing R2076600 pressure switch?
Usually, the blower will run continuously but the burner will not fire. You may see a "pressure switch open" or "airflow failure" code on the Laars Linc control board. Verify the silicon tubing for cracks or debris before replacing the switch.
Is this switch compatible with residential NeoTherm units?
While often categorized with other Laars boiler parts, the R2076600 is primarily specified for Pennant and MT2 models. Always cross-reference the 1.05" WC rating on your existing switch to ensure a proper matches for your specific BTU input and venting configuration.
Does the orientation of the switch matter during installation?
Yes. To prevent moisture or condensation from accumulating in the diaphragm, the switch should be mounted in the original factory position. Ensure the silicone tubing is securely attached to the correct tap for either positive or negative pressure sensing as required by the manual.
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.
Original: $77.32
-65%$77.32
$27.06Laars Heating Systems R2076600 Pressure Switch
The Laars Heating Systems R2076600 Pressure Switch is a critical safety and operational component designed for high-efficiency hydronic systems, specifically the Laars Pennant and Mighty Therm II series. Calibrated at 1.05" WC (Water Column), this PR-V pressure switch serves as a blower-proving mechanism, ensuring that the combustion fan is generating sufficient airflow before the ignition sequence initiates. For contractors servicing commercial boilers or volume water heaters, this part is a direct OEM replacement for the legacy part number E0255500, maintaining the integrity of the safety chain. It effectively monitors the differential pressure between the combustion chamber and the atmosphere, preventing hazardous flue gas buildup or incomplete combustion. Its compact, lightweight design allows for straightforward integration into existing control circuits, providing reliable pressure regulation and system protection against pressure spikes or venting obstructions. When troubleshooting a boiler not firing, verify the 1.05" WC setpoint with a digital manometer to confirm this switch is the root cause before replacement.
Key Benefits
- System Compatibility: Engineered specifically for Laars Pennant (PNCH/PNCV) and Mighty Therm II (MT2) units to ensure seamless HVAC part integration.
- Precision Calibration: Factory-set at 1.05" WC to provide accurate airflow verification for consistent ignition and high-efficiency performance.
- Direct Replacement: Replaces Laars E0255500, allowing for a 1:1 swap without the need for mounting modifications in the field.
- Durable Construction: Built to withstand the high-temperature environment of commercial boiler cabinets, reducing premature failure from heat stress.
- Enhanced Safety: Acts as a primary safety switch, preventing gas valve activation if proper venting parameters are not met.
Common Questions
What are the symptoms of a failing R2076600 pressure switch?
Usually, the blower will run continuously but the burner will not fire. You may see a "pressure switch open" or "airflow failure" code on the Laars Linc control board. Verify the silicon tubing for cracks or debris before replacing the switch.
Is this switch compatible with residential NeoTherm units?
While often categorized with other Laars boiler parts, the R2076600 is primarily specified for Pennant and MT2 models. Always cross-reference the 1.05" WC rating on your existing switch to ensure a proper matches for your specific BTU input and venting configuration.
Does the orientation of the switch matter during installation?
Yes. To prevent moisture or condensation from accumulating in the diaphragm, the switch should be mounted in the original factory position. Ensure the silicone tubing is securely attached to the correct tap for either positive or negative pressure sensing as required by the manual.
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 Laars Heating Systems R2076600 Pressure Switch is a critical safety and operational component designed for high-efficiency hydronic systems, specifically the Laars Pennant and Mighty Therm II series. Calibrated at 1.05" WC (Water Column), this PR-V pressure switch serves as a blower-proving mechanism, ensuring that the combustion fan is generating sufficient airflow before the ignition sequence initiates. For contractors servicing commercial boilers or volume water heaters, this part is a direct OEM replacement for the legacy part number E0255500, maintaining the integrity of the safety chain. It effectively monitors the differential pressure between the combustion chamber and the atmosphere, preventing hazardous flue gas buildup or incomplete combustion. Its compact, lightweight design allows for straightforward integration into existing control circuits, providing reliable pressure regulation and system protection against pressure spikes or venting obstructions. When troubleshooting a boiler not firing, verify the 1.05" WC setpoint with a digital manometer to confirm this switch is the root cause before replacement.
Key Benefits
- System Compatibility: Engineered specifically for Laars Pennant (PNCH/PNCV) and Mighty Therm II (MT2) units to ensure seamless HVAC part integration.
- Precision Calibration: Factory-set at 1.05" WC to provide accurate airflow verification for consistent ignition and high-efficiency performance.
- Direct Replacement: Replaces Laars E0255500, allowing for a 1:1 swap without the need for mounting modifications in the field.
- Durable Construction: Built to withstand the high-temperature environment of commercial boiler cabinets, reducing premature failure from heat stress.
- Enhanced Safety: Acts as a primary safety switch, preventing gas valve activation if proper venting parameters are not met.
Common Questions
What are the symptoms of a failing R2076600 pressure switch?
Usually, the blower will run continuously but the burner will not fire. You may see a "pressure switch open" or "airflow failure" code on the Laars Linc control board. Verify the silicon tubing for cracks or debris before replacing the switch.
Is this switch compatible with residential NeoTherm units?
While often categorized with other Laars boiler parts, the R2076600 is primarily specified for Pennant and MT2 models. Always cross-reference the 1.05" WC rating on your existing switch to ensure a proper matches for your specific BTU input and venting configuration.
Does the orientation of the switch matter during installation?
Yes. To prevent moisture or condensation from accumulating in the diaphragm, the switch should be mounted in the original factory position. Ensure the silicone tubing is securely attached to the correct tap for either positive or negative pressure sensing as required by the manual.
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.
