Electro-magnetic hold-open overhead door closer

• Specification:
Surface mounted rack and pinion eltrohydraulic hold-open overhead door closer with flat form arm for doors up to 1400 mm wide, with adjustable closing force, optical strength indicator and hydraulic latch action
Al adjustments at front of closer
When voltage applied to closer - door held open
Voltage off - door will close automatically
The door may be closed manually aat any time regardless of whether the voltage is applied or not
• Features
- Rack and pinion
- Flat form arm
- Closing force adjustable from front (size range EN 1-6)
- Optical closing force indicator
- Valve adjustable latching speed
- All adjustments at front of closer
• Electrical data
- Operating voltage 24V DC ± 10%
- Connecting load 45mA
- Max. permissable residual ripple 20%
- Voltage tolerance ± 10%
- Enclosure rating IP43
- For interior use only
- Test switch supplied
• Connection
The power supply cable (max cross section 0.8 mm2) from the fire detection control unit (24V DC) is connected to terminal box supplied
• Models
Standard (Fig 1)
• Certification
- Tested and approved to BS EN 1155:1997
- Tested to conform with CE requirements
- Certifire approved; certificate no. CF52 120 mins timber
• Material
Aluminium body. Mild steel arm
• A door stop should always be used for non backchecked doors, and where practicle for backchecked doors, and at least 66% of the door width away form the hinge