Fire door method of operation

An overhead coiling door method of operation comprising the steps of:

• providing a primary power supply to a power operated overhead coiling door;
• backing up the primary power supply with a backup power supply;
• establishing communication between a door power operator and a building fire alarm control panel;
• placing the door in a non-alarm default position;
• monitoring the power supply for power supply aberrations;
• beginning an alarm sequence of operation upon receiving a notification to activate;
• disengaging a powered drive from the door after a first predetermined event thereby disengaging powered drive operation and allowing manual operation of the door, wherein the door is balanced to gravity close when the powered drive is disengaged;
• and
• reconnecting the powered drive upon a second predetermined event;
• wherein the alarm sequence of operation comprises powering the door to a preset height, pausing the door at the preset height for a preset time, then power closing the door;
• the first predetermined event comprises completing a preset number of alarm sequence of operation under backup power;
• and the second predetermined event comprises restoration of primary power.

An overhead coiling door method of operation comprising the steps of:

• providing a primary power supply to a power operated overhead coiling door, the door coving an access opening;
• backing up the primary power supply with a backup power supply;
• providing a first alarm condition detector on a first side of the access opening and a second alarm condition detector on a second side of the access opening;
• establishing communication between a door power operator, the first and second alarm condition detectors, and a building fire alarm control panel;
• placing the door in a non-alarm default position;
• monitoring the power supply for power supply aberrations;
• monitoring the first and second alarm condition detectors for a predefined activity;
• beginning an alarm sequence of operation upon receiving a first notification to activate;
• beginning a secondary alarm sequence of operation upon receiving a secondary notification;
• disengaging a powered drive from the door after a first predetermined event thereby disengaging powered drive operation and allowing manual operation of the door wherein the door is balanced to gravity close when the powered drive is disengaged;
• and
• reconnecting the powered drive upon a second predetermined event;
• wherein the alarm sequence of operation comprises powering the door to a preset height, pausing the door at the preset height for a first preset time, then power closing the door;
• and the secondary alarm sequence of operation comprises powering the door to a preset height, pausing the door at the preset height for a second preset time of shorter duration than the first preset time, then power closing the door.