Installation & Operating Instructions
Electronic Boost Timer
& Fused Spur
Model: FBT4 – 2 Hour Boost Timer
Model: FBT5 – 4 Hour Boost Timer
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1. General Information
These instructions should be read carefully and retained for further
reference and maintenance.
2. Safety
• Before installation or maintenance, ensure the mains supply to the
boost timer is switched off and the circuit supply fuses are removed
or the circuit breaker turned off.
• It is recommended that a qualified electrician is consulted or used for
the installation of this boost timer and install in accordance with the
current IEE wiring and Building Regulations.
• Check that the total load on the circuit including when this boost
timer is fitted does not exceed the rating of the circuit cable,
fuse or circuit breaker.
3. Technical Specifications
• 230V AC 50 Hz
• Fused: Supplied with BS1362 13A Fuse
• Switch Rating: 13A Resistive (3kW)
1000W Incandescent,
Halogen lighting
500W Fluorescent lighting
200W LED lighting
100W Compact Fluorescent lighting
• Contact Type: Normally Open
• Minimum Depth of Wall Box: 25mm
• Boost Times: FBT4 ¼, ½, 1, 2 hours
FBT5 1, 2, 3, 4 hours
• Operating Temperature: 0°C to +40°C
• CE Approved
• Dimensions (H x W x D): 85mm x 85mm x 31mm
Note: Not suitable for use with Discharge Lighting.
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4. Installation
• Ensure the mains supply is switched off and the circuit supply
fuses are removed or the circuit breaker turned off.
• Connect the incoming 230V 50Hz supply and outgoing load
cables to the relevant terminals ensuring correct polarity
is observed and that all bare conductors are sleeved
(see section 5. Connection Diagram).
• A front cable exit cut-out is provided with a pre-installed
removable cover.
• If the front exiting cable cut-out is required:
1. Undo the 2 fixing screws and remove the blanking plate
(you can discard the blanking plate at this stage but keep
the 2 fixing screws).
2. Remove the cable grip from the accessory pack.
3. Using the 2 fixing screws previously removed from the blanking
plate, secure the load cable to the unit.
• Finally secure the unit to the back box with the fixing screws
provided, forming the cables during installation to avoid any
entrapment and cable damage.
Boost time
indicator LEDs
Double
pole switch
BS 1362
(1"x
1
/4")
fuse
Boost button
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5. Connection Diagram
The terminals are marked as follows on the rear of the boost timer;
Internal Schematic
Supply
Live (Brown or Red) to L IN
Neutral (Blue or Black) to N IN
Load
Switch Live (Brown or Red) to L OUT
Neutral (Blue or Black) to N OUT
Supply live
terminal
Switched
neutral terminal
(load neutral
connection)
Loop terminal
for earth
continuity
Supply neutral
terminal
Switched live
terminal (load
live connection)
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6. Operation
• The required boost time is selected by pressing the button
marked boost, repeatedly. The LEDs adjacent to the time markers
will light up in sequence, showing the selected boost period.
• Sequence below is for the FBT4 (For the FBT5 substitute
the stated times for 1 hour, 2 hour, 3 hour and 4 hour);
First push gives ¼ hour boost (LED opposite ¼ is ON)
Second push gives ½ hour boost (LED opposite ½ is ON)
Third push gives 1 hour boost (LED opposite 1 is ON)
Fourth push gives 2 hour boost (LED opposite 2 is ON)
Fifth push returns to zero boost (all LEDs are OFF).
• Once the boost selected is underway, the LEDs will go out
sequentially, indicating the approximate boost time remaining.
Example: 2 hour boost has been set, all LEDs are on;
After 58 minutes the 2 hour LED will flash for two minutes,
and then go out indicating 1 hour remaining.
After a further 28 minutes, the 1 hour LED will flash for two minutes,
and then go out indicating ½ hour remaining. After a further
13 minutes, the ½ hour LED will flash for two minutes, and then
go out indicating 15 minutes remaining.
After a further 13 minutes the ¼ hour LED will flash for two minutes,
and then go out, indicating that the boost period has finished.
• In this way the user has an approximate guide to the remaining
duration of the boost.
• If the boost button is pushed and held down, the LEDs will cycle
upwards with 1 second between each change, in sequence
¼, ½, 1, 2, OFF.
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7. Stopping or Increasing Boost
• During the first 15 seconds of activating the boost timer,
it can be stopped by pressing the boost button repeatedly
until all the LEDs are off.
• It can also be stopped during this time period, by holding down
the boost button until all the LEDs are off.
• After the first 15 seconds of activation, the boost may be cancelled
with a single push of the boost button.
• The Boost periods can only be increased during the first 15 seconds
of activation. At all other times, the boost must be cancelled first,
and the required boost periods re-entered.
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3 Year Guarantee
In the unlikely event of this product becoming faulty due to defective
material or manufacture within 3 years of the date of purchase, please
return it to your supplier in the first year with proof of purchase and it
will be replaced free of charge. For the second and third years or any
difficulty in the first year telephone the helpline on 020 8450 0515.
Note: A proof of purchase is required in all cases. For all eligible
replacements (where agreed by Timeguard) the customer is responsible
for all shipping/postage charges outside of the UK. All shipping costs
are to be paid in advance before a replacement is sent out.
Zerofour – January 2016
67.058.505 (Issue 3).
Timeguard Limited.
Victory Park, 400 Edgware Road,
London NW2 6ND
Sales Office: 020 8452 1112
or email csc@timeguard.com
For a product brochure please contact:
HELPLINE
020 8450 0515
or email helpline@timeguard.com
www.timeguard.com
Qualified Customer Support Co-ordinators will be on-line
to assist in resolving your query.
If you experience problems, do not immediately
return the unit to the store.
Telephone the Timeguard Customer Helpline;
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