Vent-Axia Silhouette 100B Assembly instructions

Installation and Wiring Instructions
Stock Ref. N°
45 40 55B (100B)
44 51 61 (125B)
45 40 59B (150X)
45 40 56B (100T)
44 51 62 (125T)
45 40 60B (150XT)
45 40 57B (100HT)
44 51 63 (125HT)
45 40 61B (150XHT)
45 40 58B (100TM)
PLEASE READ INSTRUCTIONS IN CONJUNCTION WITH ILLUSTRATIONS.
PLEASE SAVE THESE INSTRUCTIONS.
Silhouette
IPX4
220-240V~50Hz

2
Installation and Wiring Instructions for the Silhouette Range of Extractor Fans.
IMPORTANT:
READ THESE INSTRUCTIONS
BEFORE COMMENCING THE
INSTALLATION
DO NOT install this product in areas where the following may be present or occur:
•Excessive oil or a grease laden atmosphere.
•Corrosive or flammable gases, liquids or vapours.
• Ambient temperatures higher than 40°C or less than –5°C.
• Possible obstructions which would hinder the access or removal of the Fan.
SAFETY AND GUIDANCE NOTES
A. All wiring to be in accordance with the current I.E.E. Regulations, or the appropriate standards of
your country and MUST be installed by a suitably qualified person.
B. The Fan should be provided with a local isolator switch capable of disconnecting all poles, having a
contact separation of at least 3mm.
C. Ensure that the mains supply (Voltage, Frequency, and Phase) complies with the rating label.
D. The Fan should only be used in conjunction with the appropriate Vent-Axia products.
E. The fan should only be used in conjunction with fixed wiring.
F. When the Fan is used to remove air from a room containing a fuel-burning appliance, ensure that
the air replacement is adequate for both the fan and the fuel-burning appliance.
G. The Fan should not be used where it is liable to be subject to direct water spray for prolonged
periods of time.
H. Where ducted Fans are used to handle moisture-laden air, a condensation trap should be fitted.
Horizontal ducts should be arranged to slope slightly downwards away from the Fan.
I. This appliance is not intended for use by persons (including children) with reduced physical, sensory
or mental capabilities, or lack of experience and knowledge, unless they have been given
supervision or instruction concerning use of the appliance by a person responsible for their safety.
J. Children should be supervised to ensure that they do not play with the appliance.
K. Stationary appliances not fitted with means for disconnection from the supply mains having a
contact separation in all poles that provide full disconnection under over voltage category III, the
instructions state that means for disconnection must be incorporated in the fixed wiring in
accordance with the wiring rules.
DESCRIPTION
The Silhouette 100mm & 125mm axial extract fans are suitable for domestic bathrooms and W.C’s. The
Silhouette 125mm & 150mm axial extract fans are suitable for domestic kitchens and utility rooms. They
are available as wall or panel mounted models with shutter timer, humidity and PIR combinations
(100mm model only).
ACCESSORIES (not supplied)
WALL FITTING KIT
A range of 100mm, 125mm and 150mm wall kits are
available for installing into most walls using telescopic
liners supplied.
Fan
Size
Stock Reference
White Brown
100mm 254102 254100
125mm 455226 N/A
150mm 140902A 140903A

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A. INSTALLATION
IMPORTANT: The fan should only be used in conjunction with fixed wiring.
PANEL/CEILING MOUNTING
1. For panel/ceiling mounting the fan should be installed into a closed duct system of at least 1.2m
long or protected by an exterior air grille that must comply with the standard requirements of your
country to prevent access to the fans impeller.
2. Cut a 105mm diameter hole for 100mm fans, a 130mm hole for 125mm fans or a 155mm
diameter hole for 150mm fans.
3. Loosen the screw at the bottom of the grille and remove the front grille. Mark the screw centres
through the holes in the fan back plate. Drill, plug and screw into position.
4. Replace the grille and tighten the retaining screw.
5. After installation, ensure impeller rotates freely and the shutters can open.
WALL MOUNTING
1. For wall mounting either cut a 115mm diameter hole for 100mm fans, a 140mm hole for 125mm
fans or a 170mm diameter hole for 150mm fans, through the wall and insert the wall sleeve.
Slope the sleeve slightly downwards away from the fan. Cut to length and cement both ends into
position flush with the wall faces.
2. Loosen the screw in the bottom of the grille and remove the front grille. Mark the screw centres
through the holes in the fan back plate. Drill, plug and screw into position. Fix exterior grille into
position with the louvres positioned downwards. (Note:- The grille must comply with the standard
requirements of your country to prevent access to the fans impeller. The wall kit used in this
installation should provide a minimum ducting length of 60mm from the fans back plate to the
inside of the external grille).
3. Replace the grille and tighten the retaining screw.
4. After installation, ensure impeller rotates freely and the shutters can open.
B. WIRING.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED
FROM THE POWER SUPPLY DURING THE INSTALLATION / OR MAINTENANCE.
IMPORTANT
The fan should only be used in conjunction with fixed wiring.
The cross - sectional area of supply cord used should be ranged from 1 -1.5mm2.
Cable entry can only be made from the rear of the fan.
The extraction fan is suitable for connection to 220-240V 50Hz supply.
The fan is a class ll double insulated product and MUST NOT be earthed.
1. Select and follow the appropriate wiring diagram. (Fig. 2,3 or 4)
2. Check all connections have been made correctly and ensure all terminal connections and cable
clamps are securely fastened.
3. Ensure the impeller rotates and is free from obstructions.

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C. SETUP
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED
FROM THE POWER SUPPLY DURING THE INSTALLATION / OR MAINTENANCE.
NOTE
On all 150mm fans the shutter may take up to one minute to activate on start-up, and the same amount
of time to close when the fan is switched off.
SILHOUETTE 100B/125B/150X
Single speed fan. Controlled by remote switch (e.g. light switch or auto sensor) Fig.2.
SILHOUETTE 100T/125T/150XT
Single speed with overrun timer. The fan can be wired to a lighting circuit switch. Fig.4. or wired for a
basic on/off operation wire as Fig 3.
When switched ‘ON’, the fan will operate at full speed and will continue to run for a pre-set time after the
switch is turned ‘OFF’.
TIMER ADJUSTMENT
BEFORE ADJUSTING THE TIMER, SWITCH OFF THE MAINS SUPPLY. TIMER SHOULD
ONLY BE ADJUSTED BEFORE OR DURING INSTALLATION.
1. Remove the fan grille. The controller is factory set at 15 minutes approx. The overrun time
period can be adjusted from 5-25 minutes by altering the adjuster on the control PCB.
2. To REDUCE the operating time, use a small screwdriver to turn the adjuster Fig.5. ANTI-
CLOCKWISE.
3. To INCREASE the operating time, use a small screwdriver to turn the adjuster Fig.5.
CLOCKWISE.
4. Replace the fan grille.
SILHOUETTE 100HT/125HT/150XHT
The fan contains an integral humidity controller. In automatic mode the controller switches the fan on at
full speed when the room Relative Humidity (RH) reaches the set-point. The fan will continue to run until
the room RH falls below the set-point.
These fans also include a built in timer function. The timer can be activated by removing the Jumper
JP1, this will give the fan a fixed over run time of approx. 15 mins.
HUMIDITY SET-POINT ADJUSTMENT
BEFORE ADJUSTING THE CONTROLLER, SWITCH OFF THE MAINS SUPPLY. HUMIDISTAT
SHOULD ONLY BE ADJUSTED BEFORE OR DURING INSTALLATION.
1. Remove the fan grille. The controller is factory set to switch on at about 70% RH. The
humidity set point can be adjusted from 65-95%RH by altering the adjuster on the control
PCB.
2. To LOWER the set-point use a small screwdriver to turn the adjuster Fig.6. ANTI-
CLOCKWISE. This makes the controller MORE sensitive.
3. To RAISE the set-point use a small screwdriver to turn the adjuster Fig.6. CLOCKWISE.
This makes the controller LESS sensitive.
4. Replace the fan grille.
NOTE! DO NOT TOUCH HUMIDITY SENSOR.

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SILHOUETTE 100TM
Single speed with PIR (passive infra-red) detector and overrun timer. The fan starts automatically when
a movement is detected and will continue to operate for the set overrun time period.
(See ‘Timer Adjustment’ section above) Fig. 2 and 5.
D. SERVICING AND MAINTENANCE.
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE ISOLATED
FROM THE POWER SUPPLY DURING MAINTENANCE.
1. At intervals appropriate to the installation, the fan should be inspected and cleaned to ensure there is
no build up of dirt or other deposits.
2. Wipe the inlets and front face with a damp cloth until clean.
The fan has sealed for life bearings, which do not require lubrication.
Fig.2
Fig.3
Timer model wired as a Basic version (link between L & LS enables fan to switch on or off when power is put onto the fan).
Fig.1.

6
Fig.5. Fig.6.
Fig.4
Humidity
Adjustment
Timer
Adjustment
To activate the timer function remove jumper
JP1.
Once removed the fan will run on for a fixed
time period of approx. 15 mins.
To REDUCE the operating time, use a small
screwdriver to turn the adjuster ANTI-CLOCKWISE.
To INCREASE the operating time, use a small
screwdriver to turn the adjuster CLOCKWISE.
+
I
+
I
To LOWER the set-point use a small screwdriver to
turn the adjuster
ANTI-CLOCKWISE. This makes the controller
MORE sensitive.
To RAISE the set-point use a small screwdriver to
turn the adjuster CLOCKWISE. This makes the
controller LESS sensitive.


Head Office: Fleming Way, Crawley, West Sussex, RH10 9YX.
UK NATIONAL CALL CENTRE, Newton Road, Crawley, West Sussex, RH10 9JA
SALES ENQUIRIES: Tel: [phone] Fax: [phone]
TECHNICAL SUPPORT: Tel: [phone] Fax: [phone]
As part of the policy of continuous product improvement Vent-Axia reserves the right to alter specifications without notice.
449631C 0513
The Guarantee
Applicable only to products installed and used in the United Kingdom. For details of guarantee outside the United Kingdom contact your local
supplier.
Vent-Axia guarantees its products for two years from date of purchase against faulty material or workmanship. In the event of any part being found
to be defective, the product will be repaired, or at the Company’s option replaced, without charge, provided that the product:-
Has been installed and used in accordance with the instructions given with each unit.
Has not been connected to an unsuitable electricity supply. (The correct electricity supply voltage is shown on the product rating label
attached to the unit).
Has not been subjected to misuse, neglect or damage.
Has not been modified or repaired by any person not authorised by the company.
IF CLAIMING UNDER TERMS OF GUARANTEE
Please return the complete product, carriage paid to your original supplier or nearest Vent-Axia Centre, by post or personal visit. Please ensure
that it is adequately packed and accompanied by a letter clearly marked “Guarantee Claim” stating the nature of the fault and providing evidence of
date and source of purchase.
The guarantee is offered to you as an extra benefit, and does not effect your legal rights