5.0 Electrical Connection
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.
NOTE: In the event of 1kV transients the fans may stop running,
normal operation will be resumed when the interference has ceased.
Electrical details:-
Voltage:
230V 1ph 50Hz
Consumption:
2.5 Amp
Fuse rating:
5 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.
Power at reduced speed:-
% Speed
W
100
337
90
246
80
173
65
93
45
31
30
<20
NOTE: Wiring is for reference purposes only as the connections shown
are factory fitted. The unit is pre-wired with a 2 metre fly lead.
5
27
.
11
. 1
7
. Leaflet number 671617
Installation and Maintenance
MRXBOX95B-450 WC and MRXBOX95B-450
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.
Figure 10. PCB board.
C
N
7
E
X
T
R
A
C
T
C
N
6
S
U
P
P
LY
BLU
WHI
YEL
RED
SUPPL
Y
BYP
ASS
SUPPLY F
AN
EXTRACT F
AN
B
L
U
B
R
N
B
R
N
B
L
U
EXTRACT F
AN
B
L
U
B
R
N
EXTERNAL PUMP
BLU
WHI
YELI
RED
F
A
IL
CN8
TH1
TH2
Supply Extract Supply Extract Supply Extract
CN5
Supply cord
SPEED 1
SPEED 2
SPEED 3
Ecosmart connections
Humidistat
connections
Fuse 5A
MAINS
230V
50Hz
N
L
MAINS
230V
50Hz
N
L
2 Pole
Isolator
3 Position Switch Ancillary code:
MRXBOX95-3SWITCH
Blue
Brown
Supply cord
from unit
Green/yellow
Blue
Brown
Black
Supply cord
from unit
Grey
Green/yellow
L
1
2
Fuse 5A
MAINS
230V
50Hz
N
L
3 Pole
Isolator
3 Position Switch Ancillary code:
MRXBOX95-3SWITCH
Green/yellow
Blue
Brown
Black
Supply cord
from unit
Grey
L
1
2
Fuse 5A
2 Pole
Isolator
Room
light
Light
switch
(Double
Pole)
MAINS
230V
50Hz
N
L
3 Pole
Isolator
3 Position Switch Ancillary code:
MRXBOX95-3SWITCH
Green/yellow
Blue
Brown
Black
Supply cord
from unit
Grey
L
1
2
Fuse 5A
Room
lights
Light
switches
(Double
Pole)
MRXBOX95B-450WC
Figure 11a.
MRXBOX95B-450
Figure 11b.
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.
5.1 Examples of typical wiring layouts
MRXBOX95B-450
Figure 11c. Unit serving one bathroom.
MRXBOX95B-450
Figure 11d. Unit serving two 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.
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.
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.
