Operation; Maintenance - silavent SVC6 Installation Instructions Manual

All models are fitted with high technology thermo actuated shutters which operate
automatically. Allow up to 1 minute for shutters to open and up to 4 minutes to close.
DO NOT FORCE SHUTTERS
MODEL SVC150HBTW
These models are equipped with humidity control on slow speed and pull-cord switch
over-ride to high speed. The slow speed is intended to turn on when a pre-set humidity
has been exceeded and off when that level has been reduced. The fan may be operated
via the pull-cord switch at any time. The slow speed cannot be operated independently
of the humidity control.
TIMER AND HUMIDITY SENSITIVITY ADJUSTMENT
TIMER MODELS SVC150TB/SVC150HTB
Isolate from power supply. Remove front cover. The timer adjuster is positioned at the
top and is turned clockwise for more over-run time and anti-clockwise for less. (Range is
30 seconds to approx 25 minutes - factory default is set at minimum).
HUMIDISTAT MODELS SVC150HTB/SVC150HB/SVC150HBTW
Isolate from power supply. Remove front cover. The sensitivity adjuster is positioned at
the top. Turn clockwise for more sensitivity, anti-clockwise for less. (Range
50%RH–100%RH)
The humidity control may be tested by breathing through the sensor grille located at the
top of the fan unit. Please note that there is a 15 second delay between the sensor
operating and the fan starting.
DO NOT test the sensor with steam from a kettle.

MAINTENANCE

Maintenance free, but should be cleaned at least once a year.
Isolate from power supply. The outside of the fan may be cleaned with a damp cloth and
washing-up liquid. If the fan unit is heavily soiled it should be removed from its mounting.
The main fan chassis can be cleaned with a damp cloth. Do not immerse in water. The
remaining parts may be cleaned with water and washing-up liquid. Dry and re-install.
The discharge grille may be removed from the window by removing the top and screws.
Clean as above and replace. It is not necessary to remove the surface mounting housing
and discharge grille spigot from window/wall to clean them.

OPERATION

CLEANING
A GUIDE TO VENTILATION
WHERE TO SITE YOUR FAN
Incorrect siting of an extractor fan can
severely impair its efficiency. It is
therefore, important that the fan is
correctly sited using the following
principles.
• To ensure maximum air flow through
the whole room, mount in the window,
wall or ceiling furthermost from the air
inlet point at high level.
• Do not position a fan where
temperatures are likely to exceed 50ºC
(for example above a cooker hob or
eye level grill).
• When installing in a room with an open
fire or stove without a balanced flue,
ensure that there is sufficient
replacement air to prevent the fan
drawing air back down the flue.
• A 230volt fan installed in a bathroom
must not be within reach of a person
using the bath or shower.
• Always use an in-duct or Low Voltage
Fan (SELV) to ventilate a shower
cubicle.
• When installed in a window, the fan
should be as high as possible and
should not be fitted in an opening
window if it can be avoided.
NOT FOR USE IN SHOWER
CUBICLES OR ABOVE BATHS
FITTED WITH A SHOWER
MAXIMUM ROOM
TEMPERATURES 40ºC