DVAX MRH E8307 17 01 2017

2 DVAX-MRH
DVAX-MRH
Roof-mounted unit for mechanical smoke extract
Features:
• Vertical exhaust
• Smoke and heat extraction
• Tested to 400°C/2h (F200, F300, F400) acc. to EN 12101-3 at ZAG Ljubljana
• CE-certifi cation acc. to EN 12101-3 by BSI, UK
• IE2 single speed high effi ciency motor inside
• PTC thermal protection serial built-in motor
• 24VDC actuator for cover opening
• Indication for opened/closed cover position ( oating limit switches)
• Snow load SL 1000
• Installation on  at or inclined roof - adjustable side bars
• Can be mounted on  at surface (e.g. concrete) or through the roof
• Sucking side connection acc. EUROVENT
• MRH hatch sizes 500 to 1120 available also for other smoke extract fans - AXC(B), AXC(F)
• Exhaust protective grid built-in
• Robust structure
• Excellent insulation performances
DVAX-MRH, smoke and heat extract
fans with motorised hatch roof unit
are used in case of fi re to extract
smoke gases from rooms.
Smoke-free escape ways increase
the chances to rescue people in
case of fi re. For installation on top
of buildings up to SL 1000 and wind
load WL 1500.
The hatch casing is made of hot dip
galvanised steel. The hatch cover is
made of AlMg3.
The casing is made as double metal
layer:
• base with 120mm
• cover with 150mm
thick mineral wool insulation.
The axial fan inside steel casing has
aluminium hub and blades.
Motor directly inside air stream.
The motor protection is provided by
customer. Service switch serial on the
hatch casing.
When choosing AES exhaust air and
smoke extraction control accessorie,
please observe serial connecting
capability of the service switch of the
fan (instructions). Higher connecting
capability on request.
Recommended starting method for
fan is 20s after starting actuator for
cover opening, to ensure vertical
exhaust of hot gases.
400°C 120min