2
27. 04. 18. Leaflet Number 671382
As supplied the unit is fitted with:
5 off blanking plates
4 off 100mm diameter spigots
2 off 125mm diameter spigots
Any, or all of the spigots can be utilised.
110 x 54mm spigots plus additional spigots are available
on request.
Volume control dampers and filters (figure 3 and 5.) are
optional extras.
If filters are fitted they are located inside the fan case and
is easily removed for cleaning following removal of the filter
cover.
Please note a clear space of at least 470 x 320mm is
required to allow the cover to be removed and provide
sufficient access for maintenance.
The fan is designed to be wired direct to the mains supply
through a fused spur isolator (by others) and run
continuously in the NORMAL mode (which is the low speed,
background or trickle ventilation setting) with occasional
BOOST airflow (high speed setting) as and when required.
The degree of extract from each room served can be adjusted
with the optional inlet balancing dampers or by the use of air-
valves.
The unit is provided with adjustment for the low speed
(NORMAL) and high speed (BOOST) ventilation rate as
required.
2.2 Electrical connection
With the unit fixed in position and working from underneath
the installation bring the external wiring through the chosen
rubber cable entry grommet (two either side, see figure 2).
The unit MUST be Earthed.
Installation and Maintenance
MEV-DC Continuous Mechanical Extract Ventilation Units
490
350
331
Bracket fixing 4 holes 7.5 dia.
VIEW WITH ACCESS PANEL REMOVED
SIDE VIEW
Cable entry 20mm
MOUNTING BRACKET TOP VIEW
END VIEW
200
10
50
Mounting bracket
Single screw unit fixing
Removable panel
containing filter access
Optional
filter
80
3.0 Dimensions
Figure 5. Dimensions in mm.
Isolation - Before commencing work make sure
that the unit, and Nuaire control are
electrically isolated from the mains supply.
