The DORMA 1800 Series is an electromagnetically controlled door closer, available with or without integral smoke detector for use on fire and/or smoke barrier doors. The 1800 Series has been developed to inexpensively guard a single door opening from smoke and fire, in place of an array of expensive products. In addition, it will allow unimpeded, easy access throughout a building while not affecting its integrity to control the spread of smoke and/or fire. Upon interruption or loss of current in either the H or SF specification, the unit will automatically close the door from any angle of opening. This is caused by release of the electromagnetic solenoid, thus allowing the door closer to perform its function.
The DORMA 1800 Series Hold Open (H) function is designed for buildings where it is desirable to have smoke/fire doors in the open position under normal circumstances, but which must close upon loss of current. These units will operate as a standard door control, whether or not power is applied. The DORMA 1800 Series Swing Free (SF) function is designed for buildings where it is desirable to have fire/smoke doors operating as if there were no closing device fitted under normal circumstances, but must be self-closing under alarm or loss of current.
The DORMA 1800 Series is listed by UL and CUL under their continuing reinspection programs. The DORMA 1800 Series is certified to conform to the requirements of ANSI/BHMA A156.15. California State Fire Marshall (CSFM) approved.
