“MF” RANGE
Mixed Flow High Pressure Duct Fans
for Toilets, Bathrooms and Shower rooms
NOTE FOR INSTALLER:
THIS MANUAL MUST ALWAYS BE READILY AVAILABLE
INSTRUCTION MANUAL
Vectaire Ltd.
Lincoln Road, Cressex Business Park, High Wycombe
Buckinghamshire , HP12 3RH - UK
Tel. +44 (0) 1494 522333 - Fax . +44 (0) 1494 522337
MF100 MF100 LV MF250
MF100C MF100T LV MF250T
MF100T MF100HCT LV MF2502C
MF1002C MF 100 2C LV MF250HCT
MF100HCT MF 100 2R LV MF250H2C
MF100H2C MF250H2R
GENERAL PRECAUTIONS
IT IS RECOMMENDED THAT YOU READ THE FOLLOWING INSTRUCTIONS VERY CAREFULLY BEFORE USING THE PRODUCT. THE
MANUFACTURER WILL NOT BE HELD RESPONSIBLE AND DECLINES ANY AND ALL LIABILITY FOR DAMAGE CAUSED TO PERSONS OR
PROPERTY DUE TO IMPROPER USE WITH REFERENCE TO THE PRECAUTIONS OUTLINED IN THIS MANUAL.
The manual explains how to install correctly, use and carry out maintenance on the product. Following these instructions will ensure that the
product will be electrically and mechanically reliable and will extend its working life.
· Do not use this product for any purpose other than that for which it was designed and as illustrated herein.
· When removing the product from its pack aging, make sure that it has not been damaged. If in doubt, contact immediately your supplier.
· Do not leave packing material within the reach of children or unskilled people. Do not dump any hazardous parts into the environment
(polystyrene, plastic, polypropylene, etc.).
· If the product is dropped or badly knocked, contact immediately qualified personnel (authorised dealer, service centre or manufacturer) to check
that the product operates correctly.
· The use of any electrical device requires compliance with some basic rules which are listed below:
- do not touch the device with moist or wet parts of the body (hands, feet).
- do not allow the product to be operated by children or unskilled people.
· Connect the product to the mains electricity supply or electrical outlet only if:
- your electrical voltage and frequency corresponds to those shown on the rating label.
- the capacity of your electricity supply is sufficiently powerful to operate the product at its maximum power.
If not, contact a professional electrician.
· It is recommended that the product is switched off when not in use.
· Before carrying out any maintenance or cleaning, switch off the product and disconnect it from the mains electricity supply.
· If a fault, malfunction or anomaly of any type occurs, make the fan inoperative (by turning off the switch and by disconnecting it from the mains
electricity supply) and immediately contact qualified personnel.
Always request original spare parts to effect any repairs.
· If the product needs to be removed, turn off the mains supply circuit-breaker and then disconnect the fan.
Place the device in a safe location away from children and/or unskilled people.
· All electrical connections must comply with current IEE wiring regulations.
SPECIAL PRECAUTIONS
RANGE
MF100 / MF100 LV / MF 250 : standard model, normally operated by means of a control switch.
MF 100C / MF 250C : incorporate a pull-cord for turning the fan on and off.
MF100T / MF 100 T-LV / MF 250T: with adjustable Overrun Timer. Can either be wired via a light switch or via a remote (illuminated) switch. When
the light is switched on , the fan will operate , and when the light is switched off, the fan will continue to run for the pre -set length of time.
MF100HCT / MF 100 HCT-LV / MF 250 HCT: with Humidistat , Cord and Overrun Timer. This fan has an integral, adjustable, electronic humidistat,
which is sensitive to the level of moisture (relative humidity) in the air. The fan starts and continues to operate until the humidity has fallen beneath the
pre-set level and the timer has completed the over-run period. The pull-cord override allows the fan to be operated manually regardless of the humidity
level (a neon light indicates that the fan is operating in this mode). Pulling the cord again will make the fan revert to being operated automatically by
the humidistat and/or the over-run Timer. The fan can also be operated by a remote (light) switch .
MF100H2C / MF 250 H2C: with Humidistat , 2 speed, Cord and Overrun Timer. 2 speed models with integral, adjustable, electronic humidistat, which
is sensitive to the level of moisture (relative humidity) in the air. The fan starts and continues to operate at low speed until the humidity has fallen
beneath the pre-set level and the timer has completed the over-run period. Pulling the pull -cord override will boost the fan to its maximum speed. The
neon indicator will come on showing that the fan is being operated manually. Pulling the cord again will make the fan revert to its low speed and to
being operated automatically by the humidistat and/or the over -run Timer (the neon indicator will switch off).
MF 250 H2R: 2 speed model, with Humidistat, Remote Switch and Overrun Timer. Same as H2C, but using a remote dedicated 2 poles switch instead
of the pull cord, to boost the fan to maximum speed.
MF 100 2C / MF 250 2C: 2 speed models with Cord. These fans operate permanently at the lower speed and can be boosted to a maximum speed by
means of the pull-cord. Pulling the cord again reverts the fan to its lower speed. Can be wired also with a dedicated switch or a light switch
(OPTIONAL), giving OFF and 2 speed.
MF 100 2C LV / MF 100 2R LV: 2 speed, Low Voltage models . These fans operate permanently at the lower speed and can be boosted to a
maximum speed by means of the pull-cord (2C) or remote dedicated switch (2R). Pulling the cord again reverts the fan to its lowe r speed.
N.B. Both the humidistat and timer on all fans may be adjusted by following the instructions on the front of the printed circuit board (Fig 4).
Always disconnect the fan from the power supply before carrying out any operation.
The humidistat is pre-set at the factory to operate the fan when the humidity level reaches 70%.
All versions with Humidistat incorporate a controlled temperature set -back allowing the humidistat to take into account variations in the ambient
temperature and to avoid the fan switching on unnecessarily. This reduces fan operation at night.
. The product is professionally manufactured and complies with the current standards regarding electrical equipment.
· The fans comply with BSEN60335; with the Low Voltage Directive; with EC Directive EMC 89/336 for the Suppression of Radio Interference.
· Do not use the product at an ambient temperature higher than 40 °C (104 °F).
· Do not allow the product to be exposed to atmospheric agents (rain, sun, snow, etc.).
· Possible product applications are indicated in the attached illustrations.
· Do not place the fan or relative parts in water or liquids, except where indicated in the cleaning and maintenance section.
· When cleaning or performing routine maintenance, check the condition of the fan.
· To avoid the risk of fire, do not use the product in the presence of inflammable substances or vapours such as alcohol, insecticides, gasoline, etc.
· The air or fumes being extracted must be clean and free from greasy particles, soot, chemical and corrosive agents, inflammable or explosive
mixes (If these substances are treated, contact an authorised dealer for specific range of explosion-proof products).
· The product must be installed by professionally qualified personnel. Incorrect installation can cause damage to people, animals or
property, for which the manufacturer cannot be held liable.
· The product must be connected to the electricity supply via a fixed wired and fused (3 amp) spur incorporating a double pole switch with contact
openings of at least 3 mm.
· To ensure optimum operation, do not block the air intake and exit vents.
· Ensure that any ducting used is free of blockages.
· For optimum operation, ensure that the product is installed at a minimum height of 2.30 m above the ground.
· The room where the fan is located must be adequately ventilated to ensure correct operation.
· If the product is sited in a room containing a fuel burning appliance which is not of the balanced flue type, the installer must ensure that air
replacement is adeguate both for the fan and the fuel burning appliance.
· The fan should not be used as an activator for water heaters, stoves, etc.
· The fan must not exhaust into ducts designed to evacuate fumes from the combustion in stoves or other combustion-powered devices.
· The fan must have a single duct (for its exclusive use) or exhaust directly out side.
Fig.4a
Fig.3
Fig.2
Fig.4b
Legend:
1 Front fixing screw (model 250)
2 Front fixing screw (model 100)
3 Front
4 Motor-holder
5 Wall fixing screw
6 Wall plug
7 Cable grommet
8 Cable clamp
9 Cable clamp screws
10 Cable grommet
11 Terminal cover
12 Fixing screws for terminal cover
Read carefully "General and Special Precautions" above.
The fans are suitable for installation into walls or ceilings in internal rooms where rigid, flexible or flat ducting to the out side wall is required.
Ensure that the fixing surface is flat in order to avoid distortion of the casing when the fixing screws are tightened.
Check the location of existing wiring for ease of connection, and make the electrical connections as in the following instructions.
MF100
Cut a 4”/10 cm hole (plus thickness of ducting to be used).
Loosen the single screw located in the lower edge of the casing and remove the front cover by pulling forwards and upwards.
Using the body of the fan as a template mark where the 4 holes need to be drilled . Drill 4 x 5 mm dia holes and fit wall plugs.
Fix the main body of the fan to the wall using 4 screws locating them through the holes at each corner.
MF250
Cut a 4”/10 cm or a 5”/12 cm hole (plus thickness of ducting to be used).
Choose and fit the backdraught shutter according to the size of the hole (Fig 2).
Loosen the two screws located in the front of the fan and remove the front cover.
Using the body of the fan as a template mark where the 3 holes need to be drilled . Drill 3 x 5 mm dia holes and fit wall plugs.
Fix the main body of the fan to the wall using 3 screws locating them through the holes at the corner s.
Ensure that the mains electrical supply is switched off during the installation of the fixed wiring spur.
The installation must conform to current Building Regulations and IEE Wiring Regulations.
The fans are double insulated and do not require earthing .
The fan is a fixed appliance , and the electrical supply must therefore be by a fixed , wired and fused (3 amp) spir contact incorporating a double pole
switch with contact opening of at least 3 mm.The type of cable to be used is shown in Fig. 3.
The printed circuit board in these fans has been protected to make it compatible with the majority of fluorescent fittings available on the market today.
However, it is impossible to be aware of all the new products introduced. We suggest therefore that you contact your supplier to establish the compatibility of the fluorescent fitting you intend to use.
INSTALLATION
Vectaire Ltd reserves the right to alter its products as part of its policy of continuous development. E&O.E
MF 100 T LV - MF 100 HCT LV MF100LV - MF100CLV - MF1002CLV
MAINTENANCE AND CLEANING
Disconnect the mains electrical supply by means of the double pole switch.
Remove the front grille as described above and wash with a mild detergent.
To clean the inside of the fan , use a soft brush taking care not to cause any damage to the electrical wiring.
?? The connection between the fan and the mains supply must be
carried out by means of a safety and insulating trasformer with
the appropiate power.
?? The transformer should be connected to the mains supply via a
double pole safety switch with at least 3mm contact opening.
?? The fan MUST be used with transformer provided.
?? The trasformer must be installed outside zone 1 and 2; if it is
installed in zone 3, it should be mounted with the cable entrance
turned downwards.
?? The transformer must be installed as close as possible to the
fan.
?? The cable to be used to connect the transformer with the fan
must be class II, with a section area of at least 1,5 mm and a
maximum length not longer than 10 m.
N.B. Fans with timer or humidistat MUST be connected only with
the transformers provided for these versions.
For the connections to be carried out between the main supply, the
transformer and the fan, please refer to the following diagrams.
LOW VOLTAGE MODELS
WIRING INSTRUCTIONS
The SELV (Safety Extra Low Voltage) models work at low voltage (12 volts); due to this feature, the SELV models may be installed in zones 1 as well
as zone 2 of the bathroom (see enclosed drawing).
For the installation and assembly, please refer to the warnings listed below.
MF 100 T - MF 250 T MF 100 HCT - MF 250 HCT
ATTENTION
To wire the HCT version with a remote switch
make sure the pull cord switch is OFF
and cut off the pull cord.
MF 100 C
Lamp
MF 100 - MF 250
Double Pole Remote Switch
MF 250 H2R
WITH INTEGRAL PULL CORD
WITH REMOTE
SWITCH
A FULL RANGE OF ACCESSORIES ARE AVAILABLE WITH THIS RANGE, INCLUDING
MF 100 2R LV
Lamp
Lamp
MF 100 2C - MF 250 2C
MF 100 H2C - MF 250 H2C
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