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The Danfoss Randall 106 Timeswitch controls your heating and 
Hot Water systems automatically, to save you the trouble of 
switching manually every day - and also economises on fuel by 
turning the systems off  when you do not normally need them.

Normally the timeswitch dial provides 2 ON periods and 2 OFF 
periods each 24 hours.

GP Time Controls

106 Electro-mechanical 24 Hour Mini Programmer (Timed Hot Water Priority)

USER INSTRUCTIONS

Dial Cover

Wiring Cover

Manual Rocker switch 
selecting TIMED services 
or OFF

Preselector
Wheel

1.  Setting the Programme

i) 

Remove the dial cover by pulling it off .

ii)  Decide when you want the ON periods. While gripping the dial knob slide 

the dial tappets fi rmly, as shown. The tappets may be quite stiff  to move. 
Example 1. If you want the switch ON between 4 p.m. (16.00 hours) and 
11 p.m. (23.00 hours), set the tappets as shown. (A to 8, B to 10, C to 16, 
D to 23).

 
Remember :- 

Red tappets switch ON

 

 

Blue tappets switch OFF

iii)  Ensure that the installer has removed the protective tape covering the 

pre-selector wheel.

iv)  Using the dial knob rotate the dial completely at least twice, clockwise 

only, to clear the mechanism.

‘C’ at the second ON time 
in the day (16.00 hours)

‘B’ at the fi rst OFF 
time in the day 
(10.00 hours)

‘D’ at the second OFF 
in the day (23.00)

‘A’ at the fi rst ON 
time in the day 
(08.00)

2.  Setting the Time

Suppose it is 3 pm (15 hours) when you are making this adjustment. Using 
the dial knob, rotate the dial clockwise only unitl `15’ on the dial is next to 
the `Time’ mark, as shown.

Remember that you will have to re-set the time after a power-cut and also 
when all the clocks change by one hour in Spring and Autumn.

IMPORTANT:

 Any adjustment to the time setting must be made by rotating 

the dial 

clockwise only.

Replace dial cover when setting has been completed.

Turn clockwise only

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