PIP^® (Power Interruption Protection)

United States Patent No. 5,649,818

Description:
The Banner-Day PIP^® Power Interruption Protection System, used in conjunction with the Banner-Day Automatic Ignitor Sensor System, allows direct-fired oven burners to automatically re-light without the need to re-purge the oven, in the event of brief electrical power interruptions.

Operation:
During typical direct fired oven operation, when an electrical power failure occurs, the main gas safety shutoff valves close, and the exhaust and combustion air blowers stop.

A direct fired oven equipped with a DSI System and the Banner-Day PIP^® gas train option would not require the oven to be re-purged, provided the power outage is less than 8 seconds. The patented Banner-Day PIP^® system allows the main gas safety shutoff valves and each burner solenoid valve to close for the duration of the power outage. Upon the restoration of power, the exhaust fan and combustion blower will re-start, the main gas safety shutoff valves will open and the DSI System will automatically re-light each burner. The Banner-Day "PIP”^® System has been Factory Mutual approved and meets all OSHA and NFPA 86 requirements.

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