1.0 Introduction
Nuaire's MEV-DC2 units are designed to provide
continuous mechanical extract ventilation to homes
in accordance with Part F of the Building Regulation
2010 and BRE digest 398.
Coding/description is as follows:
MEV-DC2 Single fan unit.
The case is constructed in grey /blue ABS plastic. The full
length access cover which is located on the underside of
the unit, on the opposite side to the mounting bracket, is
retained by four
1
⁄ 4
turn fasteners.
2.0 Installation
Installation must be carried out by competent personnel
in accordance with the appropriate authority and
conforming to all statutory and governing regulations.
The fan must be fitted indoors, away from sources of water
spray or steam generation. The fan can be installed at any
angle using the integral mounting bracket supplied (figure 2).
It is assumed that a solid non-reverberant mounting position
has been selected and the electrical mains wiring and any
optional control wires have been made ready.
It is also assumed that compatible ductwork is already
installed and ready to be connected to the 125mm dia.
discharge and inlet spigot.
Note: the unit is not fitted with a backdraught shutter. (When
using the continuous background vent facility a backdraught
shutter is not needed). However a backdraught shutter is
available from Nuaire if required.
An integral fixing bracket with a single bolt fixing allows easy
mounting and removal of the unit when necessary. The unit is
supplied with a 125mm dia. discharge and inlet spigot for
fitting during installation.
2.1 Unit fixing
The integral mounting bracket supplied can be offered up to
position, the fixing points marked through and the bracket
installed with 4 screws by others. (See figure 2).
Offer the unit into position and locate the bracket into the
slots in the case before fixing with the single bracket fixing
screw.
As supplied the unit is fitted with:
5 off blanking plates (Do not remove)
2 off 125mm diameter spigots
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 unit is provided with adjustment for the low speed
(Normal)
and high speed
(Boost)
ventilation rate as required.
1
27. 04. 18. Leaflet Number 671559
Figure 1.
MEV-DC2
Continuous Mechanical Extract
Ventilation Units
Installation and Maintenance
Figure 2.
Fixing screw
hole.
Bracket tongues
engage with casing
slots, then unit
rotated up to
align with fixing
screw hole.
2 rubber cable
entry grommets
either side of casing
for external wiring.
The EMC Directive
2014/30/EU
The Low Voltage
Directive
2014/35/EU
Exhaust air from
kitchen, bathroom
and on-suite to
outside via air brick.
Extract air from
kitchen via
Air Valve mounted
in ceiling.
Top of ceiling void.
Nuaire MEVDC2 unit mounted
on the ceiling using an integral
mounting bracket.
Extract air from
bathroom via
Air Valve mounted
in ceiling.
Extract air from
on-suite via
Air Valve mounted
in ceiling.
Figure 3. Typical installation.
Nuaire: A Trading Division of Polypipe Limited
Western Industrial Estate
Caerphilly United Kingdom CF83 1NA
T: 029 2088 5911 F: 029 2088 7033 E: info@nuaire.co.uk W: www.nuaire.co.uk