Timeguard DS4 Installation Instructions

Adjustable Pneumatic

Time Delay Switch

Model: DS4

Installation & Operating Instructions

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1. General Information

These instructions should be read carefully and retained for further reference
and maintenance.

2. Safet y

• Before installation or maintenance, ensure the mains supply to the
Delay Switch 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 Delay Switch and install in accordance with the current
IEE wiring and Building Regulations.

• Check that the total load on the circuit including when this Delay Switch is
fitted does not exceed the rating of the circuit cable, fuse or circuit breaker.

3. Technical Specifications

• 230V AC 50 Hz

• Switch Rating: 6A Incandescent and resistive loads
3A Fluorescent and inductive loads
80W LED lighting

• Adjustable Time Delay: 10 seconds to 10 minutes (Approximately)

• Switch Type: Single Pole Change-Over Contact

• Minimum Depth of Wall Box: 20mm

• CE Compliant

• EC Directives: Conforms to latest directives

• Dimensions (H x W x D): 82 x 82 x 40mm

Note: Not suitable for use with Discharge lighting

The LED switching capabilities of this product can be increased
up to 200W by the addition of the Timeguard ZV900 Automatic
switch load controller – sold separately

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4. Installation

This time delay switch can be used on its own, or with other units in a 2-wire
(no neutral) lighting circuit, and therefore can be installed on new installations
or to replace existing single gang switches.

• Ensure that the mains supply to the circuit breaker is switched off and
the circuit supply fuses are removed or the circuit breaker turned OFF.

• It is recommended that if using moulded backing boxes, please ensure that
the box only has two mounting lugs as certain manufacturers do not allow
adequate clearance for the Time Delay Switch terminal connections.

• Some moulded boxes also have two locating pips on the mounting face which
can obstruct the Time Delay Switch and prevent it from fitting flush. This will
need to be ground off.

• If mounting on surfaces such as unplastered brickwork or the mounting box is
completely true to the wall surface, please avoid over-tightening the mounting
screws, as this may cause the switch faceplate to distort and in turn lock the
plunger in the ‘ON’ position.

• Terminate the 230V 50Hz supply and load cables into the back of the time
delay switch ensuring correct polarity is observed and that all bare conductors
are sleeved (See section 5. Connection Diagram).

• Once you have adjusted the Time ON delay (see section 6. Timing Adjustment)
secure the delay switch to the back box using the two fixing screws supplied,
ensuring not to overtighten them.

IMPORTANT: All metal back boxes must be earthed. Please ensure
that the top and bottom lugs are removed, if fitted, from the metal
wall boxes before fitting as there is a danger of the common terminal
(marked COM) fouling a mounting lug and causing an earth fault if
boxes having four lugs are used.

5. Connection Diagram

• To use one DS4 Time Delay Switch to replace a normal light switch,
connect the wires as follows;

3 4

4

• You can connect more than one DS4 Time Delay Switches for multiple
switching positions. They can be wired in parallel, as follows, to control
the same load;

Note: The example used is for 3x DS4 Time Delay Switches

Note: The COM (common) and NO (normally open) contacts are
connected when the plunger is presses, and will stay on for the
set period of the delay. The COM and NC (normally closed) contacts
are connected when the timer is off. A neutral feed is not required
at the switch position.

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6. Timing Adjustment

The timing can be adjusted between 10 seconds and 10 minutes (approx.)
by turning the brass timing screw in the centre of the plate on the back of
the unit. Use a small flat head screw driver to make any adjustment.

• Turn the timing screw clockwise to increase the time delay.

• Turn the timing screw anti-clockwise to decrease the time delay.

• Use the nut to lock the screw.

7. Operation

• The switch is operated by pressing the plunger button.
This will ‘make’ or ‘break’ the changeover contacts to trigger the load.

• The plunger will gradually return to its original position during
the time delay sequence, eventually returning the changeover contacts
to their original position using the snap action of the switch.

Note: the face plate is moulded in a semi-translucent material
and therefore it is normal to occasionally see a flash when
the contacts ‘make’ or ‘break’.

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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 years 2 to 3 or any difficulty in the first year, telephone our helpline.

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.

If you experience problems, do not immediately return the unit

to the store. Telephone the Timeguard Customer Helpline;

HELPLINE

020 8450 0515

or email [e-mail]

Qualified Customer Support Co-ordinators will be on-line

to assist in resolving your query.

For a product brochure please contact:

Timeguard Limited.

Victory Park, 400 Edgware Road,

London NW2 6ND

Sales Office: 020 8452 1112

or email [e-mail]

Zerofour – April 2016

www.timeguard.com

67.058.485 (issue 2)