7
30. 06. 21. Document Number 671864
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
MRXBOXAB-ECO4-1Z(SC/SW)
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.
Wiring is for reference purposes only, connections shown are factory
fitted. The unit is pre-wired with a 2 metre fly lead.
4.1 Electrical Information
Voltage:
240V 1ph 50Hz
Consumption: 2.5Amp
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.
4.2 Wiring Diagrams
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.
4.2.1 Unit Only
MAINS
230V
50Hz
N
L
3 Position Switch Ancillary code:
MRXBOX95-3SWITCH
Blue
Green/yellow
Brown
Black
Supply cord
from unit
Grey
L
1
2
5A Fuse
(BS1362)
2 Pole
Isolator
14
Wiring Diagram - Unit Only
4.2.2 Unit Serving One Bathroom
15
Wiring Diagram - One Bathroom
5A Fuse
(BS1362)
MAINS
230V
50Hz
N
L
3 Pole
Isolator
3 Position Switch Ancillary code:
MRXBOX95-3SWITCH
Blue
Green/yellow
Brown
Black
Supply cord
from unit
Grey
L
1
2
light
Room
Light Switch
(Double Pole)
4.2.3 Unit Serving Two Bathrooms
16
Wiring Diagram - Two Bathrooms
5A Fuse
(BS1362)
Light Switches
(Double Pole)
MAINS
230V
50Hz
N
L
3 Pole
Isolator
3 Position Switch Ancillary code:
MRXBOX95-3SWITCH
Blue
Green/yellow
Brown
Black
Supply cord
from unit
Grey
L
1
2
Room
lights
4.2.4 Summer / Winter Switch
17
Wiring Diagram - Summer / Winter Switch
Black
2 core cable
from unit
Red
Volt free Summer / Winter Switch (supplied with unit)
Polarity is inconsequential
Warning! - Do not connect to mains!
13
PCB Details
EXTRA
EXTRA
CT F
CT F
AN
Supply Extract Supply Extract Supply Extract
SPEED 1
SPEED 2
SPEED 3
