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1

GP 

Programmers & Timeswitches

102, 103 and 106 Models, for time control of Domestic Central 
Heating Systems.

Wallplate/
Terminal Block

Plug-in Module

INSTALLATION AND WIRING INSTRUCTIONS

SPECIFICATIONS

Power Supply 

:  220/240Vac, 50/Hz

Switch Action 

:  1 x SPST, Type 1B

Switch Rating 

:  220/240Vac, 50/60Hz, 6(2)A.

Timing Accuracy 

:  ± 1 min./month

Enclosure Rating 

:  IP20

Pollution Situation 

:  Degree 2

Max. Ambient Temp. 

:  55°C

Designed to meet   BS EN60730-2-7

Dimensions 

:  112mm wide, 135mm high, 69mm deep

Rated Impulse voltage 

:  2.5kV

Ball Pressure Test 

:  75°C

The unit must be installed by a competent electrician and the installation 
should conform to I.E.E. Regulations.  This unit should be wired via full 
disconnect in accordance with BS EN60730-1, e.g. via a plug and unswitched 

socket or double pole switch outlet with neon.

INSTALLATION INSTRUCTIONS

1.  Loosen the fi xing screw in the base of the unit to release the grey 

plastic Wiring Cover. Ensure the protective tape over the thumbwheel 
remains in place.

2.  Holding the unit clockface downwards, press fi rmly in the centre of 

the wallplate and slide it from the module as shown.

3.  Fix the Wallplate/Terminal Block to the wall with countersunk No.8 

woodscrews or to a steel box to BS 4662. 1970 or a surface mounting 
steel or moulded box having centres of 2

3

/

8

" (60.3mm).

4.  Referring to the Wiring Diagrams overleaf, connect the unit as shown. 

Ensure that terminals 3 and 6 are linked where required (Mains 
Voltage applications) with insulated cable capable of carrying full load 
current.

5.  Ensure all dust and debris have been cleared away from the area, then 

plug the module fi rmly into the wallplate ensuring that the hook at 
the top of the wallplate engages with the slot at the back of the body. 
Press the module down until it locates solidly.

6. 

Cut a cable aperture in the Wiring Cover if necessary; replace the Wiring 

Cover, and tighten the fi xing screw.

7.  Switch on Mains and test for correct operation as follows:

i) 

Remove protective tape from the pre-selector wheel.

ii)  Remove the dial cover and rotate the clock dial two complete 

revolutions to clear the mechanism.

ii) 

Check that all positions of the Selector Switch and Tappets operate 
correctly. (See instructions in User Booklet.)

8.  Replace the dial cover. Finally leave the USER INSTRUCTIONS with the 

Householder.

9.  If the unit is to be left turned off  and is in a dusty atmosphere, protect 

the pre-selector wheel by re-affi

  xing the protective tape.

 

IMPORTANT: Remove tape prior to putting unit into service. 

Plug-in Replacement 
Module

Selector Switch

Wallplate/Terminal Block

Pre-Selector Wheel

This product complies with the following EC Directives:

Electro-Magnetic Compatibility Directive.

(EMC) (2004/108/EC)

Low Voltage Directive.

(LVD) (2006/95/EC)

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