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Installation and Maintenance
5.0 Electrical Connection
For good EMC engineering practice, any sensor cables or
switched live cables should not be placed within 50mm of
other cables or on the same metal cable tray as other cables.
Please note: the electrical connection of the unit must be be carried
out by a qualified electrician.
The unit is supplied with a flexible cord for connection to the mains
supply.
Figure 11a.
Note: Wiring is for reference
purposes only as the connections
in fig. 11a are factory fitted.
The unit is pre-wired with a
2 metre fly lead.
3
2
Connection to Remote Fail
Indicator Ref: MRXBOX95-RFI
(Optional)
Unit serving kitchen and bathroom
Figure 12.
Disconnection from the
MAINS
supply mains must be
230V
incorporated within the
50Hz
fixed wiring in accordance
with the wiring regulations
and shall have a minimum
contact separation
of 3mm.
Unit serving kitchen and two bathrooms
Figure 13.
Disconnection from the
MAINS
supply mains must be
230V
50Hz
incorporated within the
fixed wiring in accordance
with the wiring regulations
and shall have a minimum
contact separation
of 3mm.
5.1 Optional Controls
N
L
Room
Fuse 2A
light
Light
switch
(Double
Pole)
Kitchen switch
N
L
Room
Fuse 2A
lights
Light
switches
(Double
Pole)
Kitchen switch
For further information contact Nuaire on 029 2085 8400.
The WM2 Wall Mounted Range of Units
Electrical details:-
Voltage:
240V 1ph 50Hz
Consumption: 1.3 Amp
Fuse rating:
3 Amp
NOTE This unit must be earthed.
The cable from the mains power supply should be connected
to a fixed wiring installation, via a fused isolator, in
accordance with current IEE wiring regulations.
Figure 11b. If an Ecosmart device is to be connected
the removable cover found next to the power cable
exit on the base panel of the enclosure should be
removed by loosening the two screws, the Ecosmart
cable can then be connected to the underside of the
MVHR unit within (fig 11b). The cable should be fed
through rubber blanking plug to provide a seal when
the cover is re-fitted.
Connector for
Ecosmart devices
If more than one Ecosmart sensor is required
please use MRXBOX-JB and refer to leaflet
No. 671700 for installation instructions.
Green/yellow
Blue
Brown
Black
3 Pole
Grey
isolator
Green/yellow
Blue
Brown
Black
3 Pole
Grey
isolator
6
Power Cable
Supply cord
from unit
Optional speed 3 switch
Supply cord
from unit
Optional speed 3 switch
27. 11. 17. Leaflet Number 671733
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