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INSTALLATION INSTRUCTIONS FOR THE 12 VOLT
RANGE OF FANS AND TRANSFORMERS
N.B. Pullcord models not suitable for ceiling mounting.
This appliance can be used by children aged from 8 years and
above and persons with reduced physical, sensory or mental
capacities or lack of experience and knowledge if they have
been given supervision or instruction concerning use of the
appliance in a safe way and understand the hazards involved.
Children shall not play with the appliance. Cleaning and user
maintenance shall not be made by children without supervision.
FAN INSTALLATION
Switch off mains supply before making any electrical connections.
Installation must be supervised by a qualified electrician.
Precautions must be taken to avoid the back-flow of gases into the room from the open flue of
Fans can be window, wall or ceiling mounted and are available in three diameters 100mm (4”) 120mm (5”) 150mm
(6”).
All fans are of the standard type but are manufactured with 12V ~ 50 Hz shaded pole motors. The unique feature of
this product is that the control gear and switching mechanism is mounted remotely either in the roof space or high
on the wall next to the pullcord light switch. Obviously Pullcord, Humidistat and PIR versions have to be mounted
inside the room where the fan is installed but must be mounted out of reach of the person using the bath or shower.
gas or other open-fire appliances when mounted in outside windows or walls.
Fan must be disconnected from electrical power before any maintenance is carried out.
FAN TRANSFORMER
100mm T12 RANGE
120mm T12 RANGE
150mm LT12 RANGE
SLV 100mm (4”) 1.A. Cut a 112mm (41/2”) min diameter hole in the wall. If the fan is to be fixed in the ceiling ensure
that the hole is between the joists. N.B. Fan to be fitted minimum 1.8 metres from floor.
SLV 120mm (5”) 1.B. As above but cut a 140mm (5 1/2”) diameter hole.
SLV 150mm (6”) 1.C. As above but cut a 173mm (6 3/4”) diameter hole.
2. Fit apprpriate sized ducting flush to the plaster.
3. Remove the cover from the fan by removing the two small screw caps on the front cover and remove the two
retaining Philips screws.
4. Hold the body of the fan against the wall or ceiling and mark the four screw holes and the cable entry.
IMPORTANT: Ensure that the fan is square on wall or ceiling.
5. Bring power cable into position, as marked. Allow an extra 230mm (9”) protruding to facilitate connection.
6. Connect the cable from the fan to the transformer which must be fitted at least 2m away from a fixed bath or
shower cubicle.
CAUTION These fans must NOT be connected to a mains supply.
Only use the Manrose Type T12 / LT12 range of 12V Safety isolating
Transformers.
For best results the extractor fan should be fitted as high on the wall as
possible or if preferred on the ceiling.
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WIRING INSTRUCTIONS No. T1
T
T
T
NEUTRAL
12 VOLT FAN
T1 i) Fit the pattress to the wall and connect the 240V ~ 50 Hz supply to terminals No.1 and No. 3 as shown
in diagram T1 below.
ii) The cable to the fan must be at least 1.5mm2 in section and is connected to terminals No. 4 and No. 5, as
shown in diagram T1 below.
Diagram T1. Rear of Transformer with Pattress removed.
Terminal 1 - Mains Live
Terminal 2 - Neutral
TERMINAL
LIVE
+
_
3 AMP
DOUBLE POLE
FUSED SPUR
BLOCK
TRIM
CABLE
6mm
12
9mm
240V POWER IN
WIRING INSTRUCTIONS No. T2
Timer or humidity unit which is operated by a remote pullcord switch or light switch.
Transformer Type T12T or LT12T
Diagram T2. Rear of transformer with
Pattress removed. Timer wiring.
erminal 1 - Permanent live supply
erminal 2 - Switched live supply
erminal 3 - Neutral supply
3 AMP
DOUBLE POLE
FUSED SPUR
+
LIVE
NEUTRAL
_
TERMINAL
BLOCK
TRIM
CABLE
PULLCORD
SWITCH /
LIGHT SWITCH
6mm
9mm
240V POWER IN
After checking that all wiring is secure, fit the transformer on the pattress.
45
45123
12 VOLT AC OUT
12 VOLT AC OUT
6mm
9mm
6mm
9mm
TERMINAL
BLOCK
TRIM
CABLE
TERMINAL
BLOCK
TRIM
CABLE
12 VOLT FAN
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The T12 Series, Safety Extra Low Voltage Transformers can be mounted in the loft area (not Pullcord, Humidistat or
FAN
TRANSFORMER
SPLASH AREA
TRANSFORMER INSTALLATION
PIR models) or high on the wall or ceiling next to the pullcord light switch away from the bath or shower and designed
to power 12V Low Voltage fans installed in the splash area of the bath or shower.
N.B. Pullcord models not suitable for ceiling mounting.
Eight models in the range.
Comes complete with pattress but can be flush wall mounted. (Protrusion 25mm). All models fitted with neon light.
TYPE WIRING
INSTALLATION
DIAGRAM
T12S
LT12S
T12P
LT12P
T12T
LT12T
T12TP
LT12TP
T12H
LT12H
T12HP
LT12HP
T12PIR
LT12PIR
CAUTION
While a 12V fan may be fitted anywhere
in the splash area of a bath or shower
the transformer MUST be mounted at
least 2m from a bath or shower and
as high on the wall as possible as in
diagram L1.
T1
Standard model for remote switching.
T1 As above supplied with pullcord switch. Not suitable for ceiling mounting.
T2
Timer model incorporating integral electronic timer (adjustable 1 - 30 minutes) for
remote switching.
T1 As above but with pullcord over-ride switch. Does not require switched live. Not suit-
able for celiing mounting.
T2
Humidity model with built-in humidity sensor which will switch on when the humidity
rises above 75% RH and will switch off when the humidity drops below 75% RH. These
switching levels can be adjusted between 50% - 90% RH.
T1 As above but with pullcord over-ride switch. Not suitable for ceiling mounting.
T1
PIR model with adjustable timer,switches on as person enters room and runs on after
the room has been vacated, there is no need to connect to a seperate switch or for a
switched live. Run on timer adjustable between 1 - 30 minutes.
Diagram L1
Diagram L2
MAX
45min 1 min
MIN
90%
OFF
RH%
ON
40%
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Special features - Diagram L2
T12 T As the transformer has a timer fitted the time delay can be adjusted by turning the adjuster on the front
cover to the required time delay, as indicated.
T12 H As the transformer is fitted with an internal electronic humidity sensor and time delay, these can be adjusted
on the front cover to the required settings.
Ideal settings are:-
Timer set to about 10mins
Humidity set to about 75% to 80% R.h.
In new buildings the fan will probably run for prolonged periods or even several days. It may be necessary to
increase humidity setting to about 90% until the building has dried out.
ELECTRICAL INSTALLATION
All wiring must be fixed securely and the cable to the fan should be a minimum of 1.5mm2 in section. All wiring
must comply with current I.E.E. Regulations.
A double pole fused spur having a contact separation of at least 3mm in all poles must be used and fitted with a 3
amp fuse, and must be sited outside any room containing a shower or fixed bath. Must be mounted out of reach
of the person using the bath or shower. These appliances are double insulated and do not require an earth.
077130 07/13
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