Logo - Accurate Overhead Limited

Contact us
Accurate Overhead Limited


Fire Rated Doors


side folding grills

Cornell Fire Doors Model ERD10

Fire Doors are rated physical fire barriers that protect wall openings from the spread of fire. They provide automatic closing in the event of fire detection with governed speed control. Fire doors are also designed for daily use to provide security and access control, but are for use in openings that are not part of a required means of egress. Cornell offers a complete line of labeled rolling doors for protection in wall openings where rated doors are required by building codes and for insurance purposes.

Fire Door Labeling: 4 HR, 3 HR, 11/2 HR, 1 HR and 3/4 HR Underwriters' Laboratory (UL) labels Factory Mutual Research Corporation's Approval

Sizes: Standard construction for openings up to 34 wide, 30 high or 768 square feet. Consult factory for larger size doors.

UL Labeled SmokeShield® Fire Doors: Add UL labeled smoke and draft control to fire doors. Containing smoke saves lives and building property and also aids in fire containment by slowing oxygen flow to the fire source. It's simple to double up on the protection of your building and may be required by your local building code. Be sure to add SmokeShield protection to all your Fire Door products. For more information click here.

Material and Finishes: curtains are available in 22, 20 and 18 gauge galvanized steel with exclusive GalvaNex™ finish in light gray, powder coating as an available option, or 20 gauge 300 series stainless steel with #4 finish. Stamped steel or cast iron endlocks are provided per UL procedure.

Fire Door Mounting: Face of wall or between jambs configurations in both interior and exterior walls. Approved wall types for the mounting of fire doors include masonry or structural steel jambs.

Fire Door System Operation: M100 motor, chain or crank operating systems are recommended for ease of testing and controlled automatic closing speed. Click on the Operator Information button at right for a full description of these systems.

Conventional fire door automatic closing systems release spring tension and require mechanical resetting by a trained door systems technician. Although these old fire door systems are available and frequently specified, the industry has evolved to address today’s issues of annual door testing requirements, more frequent alarm testing, recessed installation and power outages. Cornell strongly recommends you consider the safety and convenience advantages our M100 Closing Systems provide.

All Cornell fire products are provided with a multiple fuselink set-up to close the door automatically when any link melts. Standard fuselinks are designed to melt at 165° F and are to be located at the ceiling level above the fire door. For units with an automatic closing system or tied into an alarm system or local detectors, a fuselink set-up is still provided as a back up mechanical closing system.

Release Device Options Releasing devices are electro-mechanical devices that enable non-M100-motor automatic closing fire doors to respond to alarm signals from detection devices such as smoke detectors, heat detectors and central alarm systems. This permits closing the door before high temperatures melt the fusible link. Fusible links should always be used as back up to the releasing device.

Cornell SS90-B: This device is activated by detection systems and is fail-safe by design, causing an open door to close in the event of a prolonged power failure (generally, longer than 10 seconds). Designed to accept input voltages of 120 volt and 24 volt AC or 24 volt DC, its adaptability simplifies planning and enhances serviceability. The SS90-B is UL listed with adjustable time delays for short power outages or alarm signals. When a remote “down” limit switch is added, this device also offers Down Limit Detection, which prevents mechanical release of a fully closed fire door.

Cornell SS90-B2: Includes all the features of the SS90-B unit, but utilizes a 120 volt AC input voltage to maintain its battery back-up system that continues to power the release device and up to four local smoke detectors and/or warning devices up to 72 hours during a power outage.

Annunciator Options Optional Sounder/Strobe or Voice Warning Modules can be tied into SS90 release devices to safely preannounce closing of the fire door.

Sounder/Strobe: ADA compliant, this 120 volt AC warning device may be utilized with the SS90-B release device, but is non-fail-safe and will not function in the event of a power failure. A fail-safe, 12 volt DC version may be used with the SS90-B2 and is powered by the release device’s battery source to provide advanced warning, even during a power failure.

Voice Warning Module: An optional warning device for use with SS90-B2 release devices. The voice warning is in English, other languages are available, and is not ADA compliant.

Contact us today to find out which Accurate Overhead Door is right for you!


A Canadian Overhead Door Company Servicing all Ontario Canada

rolling door, coiling door, rolling fire door, coiling fire door, rolling door parts, coiling door parts, steel door, fire door, fire shutter, rolling grille, coiling grille, counter shutter, counter fire shutter, rollup, roll up, rolldown, roll down, overhead door, overhead rolling door, overhead door parts, industrial door, overhead coiling door, store front gates, store front door, garage door parts, side coiling, alpine door, fire rated door, storm shutter, hurricane shutter, rolling, coiling, steel, door, fire door, shutter

Accurate Overhead Limited

35 Munham Gate Scarborough, Ontario Canada
Phone: (416) 757.4133  Fax: (416) 757.4134
Email: accurateoverhead@bellnet.ca

Our goal is to provide the best possible product at a competitive price,
backed by a staff committed to the highest industry standards.


Copyright © 2005 Accurate Overhead Limited

Webmaster:     Toronto Garage Doors Toronto Overhead Door and Openers Ontario