The slow-open gas valve prevents the "boom" of hard ignition by gradually increasing gas flow

and SBF valve bodies

it provides a dedicated 14A contact rating to ensure stable electrical connections under constant load

using the specific 70/42F defrost Tstat keeps the system within the original engineering parameters

Common Questions: Is this limit switch a manual or automatic reset

Bard 8620-080 Switch Refrigerant The slow-open gas valve preventsThe 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