7
04. 12. 20. Document Number 671824
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
MRXBOX(AB)-ECO2-AE
Installation Manual
4.0 ELECTRICAL INSTALLATION
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.
The electrical connection of the unit must be carried out by a
qualified electrician.
The unit is supplied with a flexible cord for connection to the mains
supply.
4.1 Electrical Information
Electrical details:
Voltage: 240V 1ph 50Hz
Consumption: 1.2 Amp
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.
14
Ecosmart Connection
Connector for
Ecosmart devices
Power Cable
LI
AF
Supply Supply Extract Extract
Speed1 Speed2 Speed1 Speed2
15
PCB Details
Wiring is for reference purposes only as the connections in Figure
15 are factory fitted. The unit is pre-wired with a 2 metre fly lead.
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. The cable
should be fed through rubber blanking plug to provide a seal when the
cover is re-fitted.
If more than one Ecosmart sensor is required please use MRXBOX-JB
and refer to leaflet No. 671700 for installation instructions.
4.2 Wiring Diagrams
4.2.1 Unit Serving Kitchen & Bathroom
Optional Controls -
For further information regarding optional controls, contact Nuaire on 02920 858 400.
Disconnection from the
supply mains must be
incorporated within the
fixed wiring in accordance
with the wiring
regulations and shall
have a minimum contact
separation of 3mm.
3A Fuse
(BS 1362)
MAINS
230V
50Hz
Light
Room
Light
Switch
(Double
Pole)
N
L
3 Pole
Isolator
Kitchen Switch
Blue
Brown
Black
Optional 3 Speed Switch
Supply Cord
From Unit
Grey
Green / Yellow
16
Wiring Diagram - Kitchen & Bathroom
4.2.2 Unit Serving Kitchen & 2 Bathrooms
Disconnection from the
supply mains must be
incorporated within the
fixed wiring in accordance
with the wiring
regulations and shall
have a minimum contact
separation of 3mm.
3A Fuse
(BS 1362)
MAINS
230V
50Hz
Room
Lights
Light
Switches
(Double
Pole)
N
L
3 Pole
Isolator
Kitchen Switch
Blue
Green / Yellow
Brown
Black
Supply Cord
From Unit
Optional 3 Speed Switch
Grey
17
Wiring Diagram - Kitchen & Bathroom
