Retrofit Fire Door Operators
The simple solution to existing fire door frustrations 
Obsolete fire doors with poorly governed, old style closing systems may actually create hazardous conditions where safety is needed most. By retrofitting Cornell Motor, Hand Chain or Hand Crank operating systems on existing fire doors, improved life safety and functional benefits can be achieved while still maintaining UL certification.
Retrofit Operators:
- Guarantee a safe automatic door closing rate where the rate of descent is regulated not to exceed 12" per second.
- Maintain the safety of building employees and occupants by ensuring that fire doors are ready to respond when the need arises and help prevent catastrophic losses
- Maintain UL Certification / FM Approval of the door while improving its operation
- Allow facility personnel to routinely reset fire doors without having to restore spring tension, eliminating facility downtime expense and lost productivity after each auto closing
- Additionally, a full line of safety accessories are available.
M100 FireGard™ Retrofit Operators:
- All retrofit M100 Operator Systems are wired for activation by fire alarm systems such as smoke detectors or central alarm building systems, local detectors or power failure without requiring connection to a separate alarm interface or fusible link release device.
- All retrofit M100 Operator Systems are easily reset at floor level by facility personnel after automatic closing, saving downtime and expense. Doors can be reset immediately with maximum convenience.
- To meet your preferred method of operation, three M100 operating systems are available:
M100 Chain Operator
M100 Crank Operator
M100 Motor Operator - Use retrofit M100 Operator Systems in applications where maximum resetting convenience is desired, where activation by fire alarm system or smoke detector is desired or required and for units susceptible to frequent power outages.
- Are recommended when simplified resetting is desired in openings where power is unavailable and connection to central alarm system or local smoke detectors is not required by local building officials.
- FireGard Retrofit Operators are available in Chain or Crank models.
The Decision Is Easy
Cornell makes it simple for facility managers to eliminate the nuisances of old style fire doors while protecting productivity, property and personnel.
- Retrofitting with an Cornell fire door operators is easy and economical
- UL Certification for the US and UL Certification for Canada allows Cornell Iron Works, Inc. to retrofit the fire doors of most manufacturers with M100 system operators.
- M100 operators are Factory Mutual (FM) approved.
Use this link to find the Cornell Distributor in your area. They would be happy to inspect your fire doors and provide you with the most safe and secure operating solution.