7
30. 06. 20. Document Number 671957
Nuaire |
Western Industrial Estate
|
Caerphilly
|
CF83 1NA
|
nuaire.co.uk
MRXBOXAB-ECO5-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.
4.2 Wiring diagrams
4.2.1 Unit Serving Kitchen
EXTRA
EXTRA
CT F
CT F
AN
LI
AF
Supply Extract Supply Extract Supply Extract
SPEED 1
SPEED 2
SPEED 3
3
2
Connection to Remote Fail
Indicator Ref: MRXBOX95-RFI
(Optional)
Connector for
Ecosmart devices
Power Cable
Wiring is for
reference purposes
only, connections
shown are factory
fitted.
The unit is pre-wired
with a 2 metre fly
lead.
If more than one Ecosmart
sensor is required please
use MRXBOX-JB and refer
to leaflet No. 671700 for
installation instructions.
15
14
PCB Details
Ecosmart Device Connector
4.1 Electrical Information
Voltage: 240V 1ph 50Hz
Consumption: 2 Amp
Fuse rating: 5 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.
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.
16
17
18
Unit Serving Kitchen
Unit Serving Kitchen And Bathroom
Unit Serving Kitchen And Two Bathrooms
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
Fuse 5A
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
Fuse 5A
2 Pole
Isolator
light
Room
Light
switch
(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
Fuse 5A
Room
lights
Light
switches
(Double
Pole)
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
Fuse 5A
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
Fuse 5A
2 Pole
Isolator
light
Room
Light
switch
(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
Fuse 5A
Room
lights
Light
switches
(Double
Pole)
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
Fuse 5A
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
Fuse 5A
2 Pole
Isolator
light
Room
Light
switch
(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
Fuse 5A
Room
lights
Light
switches
(Double
Pole)
4.2.2 Unit Serving Kitchen And Bathroom
4.2.3 Unit Serving Kitchen And Two Bathrooms
