UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close

UL 228

UL Standard for Safety Door Closers-Holders, with or without Integral Smoke Detectors

active, Most Current
Buy Now
Organization: UL
Publication Date: 26 January 2006
Status: active
Page Count: 50
scope:

These requirements apply to swinging door closers equipped with integral electromechanical or electromagnetic holders and which may be provided with integral smoke detectors. These requirements also apply to electromagnetic door holder units which are for use with a separate door closer and separate automatic fire detector.

When integral smoke detectors are provided with the combination door closer-holder, the smoke detectors shall comply with requirements for smoke detectors of the photoelectric or combustion products type.

Requirements for the installation of these combination door closers-holders with or without smoke detector units are included in the Standards for Fire Doors and Fire Windows, NFPA 80, and National Fire Alarm Code, NFPA 72.

The combination door closers-holders (with or without integral smoke detectors) described in this Standard provide one of the following types of hold open functions:

Single point hold open.

Multiple point hold open. (Two, three, four, etc. discrete hold open points as set at the manufacturer's plant.)

Infinite hold open points with one as set by the user.

Document History

UL 228
January 26, 2006
UL Standard for Safety Door Closers-Holders, with or without Integral Smoke Detectors
These requirements apply to swinging door closers equipped with integral electromechanical or electromagnetic holders and which may be provided with integral smoke detectors. These requirements also...
January 26, 2006
UL Standard for Safety Door Closers-Holders, with or without Integral Smoke Detectors
These requirements apply to swinging door closers equipped with integral electromechanical or electromagnetic holders and which may be provided with integral smoke detectors. These requirements also...
228
April 29, 1997
UL Standard for Safety Door Closers-Holders, with or without Integral Smoke Detectors
A description is not available for this item.
April 29, 1997
UL Standard for Safety Door Closers-Holders, with or without Integral Smoke Detectors
These requirements apply to swinging door closers equipped with integral electromechanical or electromagnetic holders and which may be provided with integral smoke detectors. These requirements also...
228
April 29, 1997
UL Standard for Safety Door Closers-Holders, with or without Integral Smoke Detectors
These requirements apply to swinging door closers equipped with integral electromechanical or electromagnetic holders and which may be provided with integral smoke detectors. These requirements also...

References

Advertisement