Bard 8620-080 Switch

The Bard 8620-080 is a precision-engineered 75C Close-on-Rise (CI) Automatic Fan/Limit Switch designed for high-reliability circuit control in Bard wall-mount units and HVAC systems. This SPST thermal switch operates as an automatic reset limit, ensuring the blower fan engages or the heating element disengages once the 75-degree Celsius threshold is met. Engineered for durability in high-cycle environments, the 8620-080 serves as a direct OEM replacement fan switch, maintaining factory specifications for safety and airflow management. It is commonly utilized in Bard WA and WH series heat pumps and air conditioners to prevent heat exchanger overheating and manage latent heat dissipation. When troubleshooting HVAC blower motor cycling or limit circuit faults, verifying the continuity and temperature calibration of this Bard high limit switch is essential. This component features standard terminal connections for rapid field installation, ensuring minimal downtime for commercial and residential environmental control systems.

• Precise Thermal Calibration: Fixed 75C trip point ensures accurate HVAC fan control and system protection.
• OEM Compatibility: Genuine Bard HVAC replacement part ensures proper fitment and electrical rating alignment.
• Automatic Reset Logic: Eliminates manual intervention after thermal stabilization, restoring system operation automatically.
• Heavy-Duty Construction: Built to withstand the high-temperature gradients found within wall-mount furnace and air handler assemblies.

What are the symptoms of a failing Bard 8620-080 switch?
Common indicators include the indoor blower failing to activate during a heating cycle or the system cutting out prematurely due to an open limit circuit.

Is the 8620-080 compatible with other HVAC brands?
While it is a Bard-specific 75C limit, it may cross-reference with other units requiring the same temperature setpoint and mounting footprint; always verify the electrical load ratings before substitution.

How do I test this 75C fan switch in the field?
Using a multimeter, technicians should check for continuity across the terminals when the ambient temperature exceeds the 75C rating, confirming the Close-on-Rise functionality.

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.