Vent-Axia Lo-Carbon Silhouette 100HT Assembly instructions

100/150mm AXIAL EXTRACT FAN
Installation and Wiring Instructions
Stock Ref. N°
44 16 24 - 100B
44 16 25 - 100T
44 16 26 - 100HT
44 16 28 - 150B
44 16 29 - 150T
44 16 30 - 150HT
PLEASE READ INSTRUCTIONS IN CONJUNCTION WITH ILLUSTRATIONS.
PLEASE SAVE THESE INSTRUCTIONS.
Silhouette
Lo-Carbon RANGE
IPX4
220-240V~50Hz

2
Installation and Wiring Instructions for the Lo-Carbon 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.
L. The exterior grille should be at least 2.3m above the ground to prevent people from being able to
access moving parts. If the external grille is positioned between 0-2.3m from the ground, Please
use the Vent-Axia wall kit as detailed below to ensure people cannot access the fans impeller from
the outside.
DESCRIPTION
The Lo-Carbon Silhouette 100mm fan is an axial extraction fan suitable for domestic
bathrooms and W.C’s. The Lo-Carbon Silhouette 150mm fan is an axial extraction fan
suitable for domestic kitchens and utility rooms. They are available as wall or panel
mounted models with shutter timer and humidity combinations.
Long life ball bearing DC motor with anti-vibration mounts provides low noise
transmission into plasterboard/panels for silent operation.
The fan can be wall or panel/ceiling mounted.
ACCESSORIES (not supplied)
WALL FITTING KIT
A range of 100mm and 150mm wall kits are
available for installing into most walls using
telescopic liners supplied.
White Brown
100 254102 254100
150 140902A 140903A
Stock Reference

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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 (max 3m) 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 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. Attach ducting as required for the installation.
5. Wire the fan as described in Section B-Wiring. Adjust any settings as required
(see Section C-Setup).
6. Replace the grille and tighten the retaining screw.
7. After installation, ensure impeller rotates freely and the shutters can open.
WALL MOUNTING
1. For wall mounting either cut a 117mm diameter hole for 100mm 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 100mm from the fans back plate to the inside
of the external grille).
3. Wire the fan as described in Section B-Wiring. Adjust any settings as required
(see Section C-Setup).
4. Replace the grille and tighten the retaining screw.
5. 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.

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•The fan is a class ll double insulated product and MUST NOT be earthed.
1. Select and follow the appropriate wiring diagram. (Fig. 2 or 3)
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.
C. SETUP
WARNING: THE FAN AND ANCILLARY CONTROL EQUIPMENT MUST BE
ISOLATED FROM THE POWER SUPPLY DURING THE INSTALLATION / OR
MAINTENANCE.
ACCESSING THE CONTROL SETTINGS – (Fig. 4)
1. Loosen the screw in the bottom of the grille and remove the front grille.
2. Carefully pull the inner cap from the centre of the fan away from the chassis.
3. Adjust the settings as outlined below.
SPEED SETTING:
BEFORE SETTING THE SPEED, SWITCH OFF THE MAINS SUPPLY. SPEED SHOULD
ONLY BE SET BEFORE OR DURING INSTALLATION.
The fan has two speed settings for different installation requirements:
1) High speed:
•T and HT models: Dip switch 2 in the ‘OFF’
position. (Fig.5 – and right)
•100B/150B models: Remove jumper (Fig.5)
2) Low speed (Factory set):
•T and HT models: Dip switch 2 should be in the
‘ON’ position. (Fig.5 – and right)
•100B/150B models: Replace jumper. (Fig.5)
Dip switch 1 should be in the ‘OFF’ position (T and HT models only).
TIMER ADJUSTMENT (T AND HT MODELS)
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 1-30 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. CLOCKWISE.
3. To INCREASE the operating time, use a small screwdriver to turn the
adjuster Fig.5. ANTI-CLOCKWISE.
4. Replace the fan grille.
12
ON
High speed (T/HT)
12
ON
Low speed (T/HT)

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HUMIDITY SET-POINT ADJUSTMENT (HT MODELS ONLY)
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.5.
ANTI-CLOCKWISE. This makes the controller MORE sensitive.
3. To RAISE the set-point use a small screwdriver to turn the adjuster Fig.5.
CLOCKWISE. This makes the controller LESS sensitive.
4. Replace the fan grille.
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.1.
2 3

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Fig.3 Models: 100T/150T, 100HT/150HT
~N
N
LS
L
Fan
FUSE
Fig.2 Models: 100B/150B, 100HT/150HT (Timer not used)
~
N
L
1 PHASE SUPPLY
(220-240V 50Hz). FUSE
SWITCHED
FUSED
SPUR
L
N
Fan
Fig.4. Accessing the control settings
Head Office: Fleming Way, Crawley, West Sussex, RH10 9YX. Tel: [phone] Fax: [phone]
UK NATIONAL CALL CENTRE, Newton Road, Crawley, West Sussex, RH10 9JA
SALES ENQUIRIES: Tel: [phone] Fax: [phone]
TECHNICAL SUPPORT: Tel: [phone] Fax: [phone]
For details of the warranty and returns procedure please refer to www.vent-axia.com or write to Vent-Axia Ltd, Fleming Way, Crawley, RH10 9YX
442295F 0811
Fig.5.
Timer
adjustment Humidistat adjustment
Speed adjustment Jumper for
100B/150B
models