EVENTUALLY, YOU MAY WANT TO REPLACE THIS TRANSFORMER:
When your transformer comes to the end of its life or you choose to update or upgrade it by replacing it,
please do not dispose of it with your normal household waste, please recycle where facilities exist. When
you need to dispose of this transformer, check with your retailer or local authority for suitable options.
New regulations require the recycling of Waste from Electrical and Electronic Equipment (European
“WEEE Directive” effective August 2005-UK WEEE Regulations effective 2nd January 2007). Environment
Agency Registered Producer: WEE/GA0248QZ
IF YOU EXPERIENCE PROBLEMS:
If your transformer is defective or develops a fault, please return it to the place where you bought it. You
can call our Helpline for advice. The Helpline will gladly give advice on any aspect of any Eterna Lighting
product but may not be able to give specific instructions regarding individual installations.
If in doubt, consult a qualified electrician.
SAFETY AND INSTALLATION INSTRUCTIONS
110112-1EJ
HELPLINE:
• T: 01933 673 144
• F: 01933 678 083
• E: sales@eterna-lighting.co.uk
Visit our website:
www.eterna-lighting.co.uk
Pack contents:
Bell transformer x 1
Fixing screws x 4
Wall plugs x 4
Model:
BT4812
Multi Voltage Bell /
Chime Transformer
These instructions are provided as a guideline to assist you.
PLEASE READ THESE INSTRUCTIONS BEFORE USING YOUR NEW FITTING
PLEASE RETAIN FOR FUTURE REFERENCE
General Information and Safety Instructions:
Installation, Cleaning and Specification:
READ THIS FIRST:
Check the pack and make sure you have all of
the parts listed on the front of this booklet. If
not, contact the outlet where you bought this
product.
This transformer must be installed by a
competent person in accordance with the
Building Regulations making reference to the
current edition of the IEE Wiring Regulations
(BS7671). The Building Regulations may be
obtained from OPSI (Office for Public Sector
Information) or the department of Communities
and Local Government and viewed and
downloaded from www.communities.gov.uk
following the link for Building Regulations.
As the buyer, installer and/or user of this
product it is your own responsibility to ensure
that this transformer is fit for the purpose for
which you have intended it. Eterna Lighting
cannot accept any liability for loss, damage or
premature failure resulting from inappropriate
use.
If in any doubt, consult a qualified electrician.
This product is designed and constructed
according to the principles of the appropriate
British Standard and is intended for normal
domestic service. Use of this transformer for any
other than its intended purpose, may result in a
foreshortened working life.
Switch off the mains before commencing
installation and remove the appropriate circuit
fuse.
When working at heights, please use a suitable
platform.
Do not overload the transformer; check that
the total load does not exceed the maximum
marked on the transformer.
Disconnect the transformer from the electrical
supply before flash or high voltage testing.
Suitable for indoor use only.
This product is suitable for installation on
surfaces with normal flammability e.g. wood,
plasterboard, masonry. It is not suitable for use
on highly flammable surfaces (e.g. polystyrene,
textiles).
Before making fixing hole(s), check that there
are no obstructions hidden beneath the
mounting surface such as pipes or cables.
The chosen location of your new transformer
should allow for the product to be securely
mounted and safely connected to the mains
supply.
Do not cover the transformer with any insulating
materials.
Ensure that the transformer will be accessible
after installation for maintenance or
replacement.
Do not attach to surfaces which are damp,
freshly painted or otherwise electrically
conductive (e.g. metallic surfaces).
If the location of your new transformer requires
the provision of a new electrical supply, the
supply must conform with the requirements of
the Building Regulations making reference to
the current edition of the IEE Wiring Regulations
(BS7671).
This product is designed for permanent
connection to fixed wiring: this should be
either a suitable circuit (protected with a 5 or
6 Amp MCB or fuse) or a fused spur (with a
3 Amp fuse) via a fused connection unit. We
recommend that the supply incorporates a
switch for ease of operation.
Make connections to the electrical supply in
accordance with the following code:
Live - Brown or Red
Neutral - Blue or Black
This transformer is double insulated, and the
transformer output is SELV (Safety Extra Low
Voltage). Do not connect any part to earth.
When making connections, ensure that the
terminals are tightened securely and that
no strands of wire protrude. Check that
the terminals are tightened onto the bared
conductors and not onto any insulation. Wrap
loose terminal blocks well with insulating tape.
You are advised at every stage of your
installation to double-check any electrical
connections you have made. After you have
completed your installation there are electrical
tests that should be carried out: these tests are
specified in the Wiring Regulations (BS7671)
referred to in the Building Regulations. If in
doubt, consult a qualified electrician.
INSTALLATION:
1) Choose the location for your new transformer
giving consideration to each of the points
opposite.
2) Loosen the screw on the front of the case and
lift off the top.
3) Remove the fixing kit.
4) Using the rear of the case as a template, mark
the fixing holes on the mounting surface.
5) Secure the transformer in place using the fixings
supplied. If the fixings are not appropriate for
your installation use suitable alternatives.
6) Make the connections to your bell and/or bell
push according to the instructions supplied
with them. Check the Voltage required by your
bell/sounder and connect to the terminals as
shown in fig.1 below.
7) Make the connections to the mains supply as
detailed above.
8) Replace the front of the case.
9) Restore the power supply and switch on.
Fig 1
DIAGRAMS BELOW SHOW HOW TO CONNECT TO THE CORRECT VOLTAGE
MAINS MAINS MAINS
N L N L N L
8V
CLEANING:
• Clean this transformer only with a soft dry cloth
• Do not use any chemical or abrasive cleaners.
SPECIFICATION:
Supply Voltage: 240V 50Hz
Output Voltage: 4V 50Hz or
8V 50Hz or
12V 50Hz
Maximum Current: 1A
4V
12V
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