Danfoss 102 User manual

Fig.1
102
User Instructions
Fig.2
The 102 Mini Programmer will control your Heating and Hot Water system
automatically, to save you the trouble of having to manually switch the system
on and off every day. It consists of one switch which controls your heating and
hot water and a clock (timer) which allows you to decide when and how long your
heating and hot water will be on for.
Setting the time of day
Remove dial cover (turn slightly to the left and pull off)
Turn the dial clockwise until the correct time is aligned to the TIME
mark (Fig.1).
IMPORTANT: turn the dial clockwise only
Remember:
You will have to re-set the time after a power-cut, and also when the clocks
change in Spring and Autumn.
Programming Event Times
There are four TAPPETS on your timing dial, two red and two blue. The red
tappets are the ON switches and the blue tappets are the OFF switches (Fig.2).
1 If not already done so, remove the dial cover (turn slightly to the left & pull off)
2 Decide when you want your hot water and heating to come on and go off.
While gripping the dial knob slide the RED tappets to the required ON
times and the BLUE tappets to the required OFF times (please note, the
tappets may be quite stiff to move) Fig.3
Example:
If you want your system ON between 8am and 10am and again between
4pm and 11pm, set the tappets as shown. (A to 8, B to 10, C to 16, D to 23).
Note: Tappets can be moved around the dial in a clockwise or anti-clockwise
direction, as convenient.
Fig.3
TIME mark
A (Red) = 1st ON
B (Blue) = 1st OFF
C (Red) = 2nd ON
D (Blue) = 2nd OFF

Danfoss Ltd
Ampthill Road
Bedford, MK42 9ER
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Website: www.heating.danfoss.co.uk
Fig.4
Fig.5
Fig.6
3. Ensure that the installer has removed the protective tape covering
the pre-selector wheel.
4. Using the dial knob, rotate the dial completely at least twice,
clockwise only, to clear the mechanism.
Using the Programmer
The Rocker Switch on the side of the unit is used to select how your 102
controls your hot water & heating system. You can manually select either:
hot water only (Fig.4)
hot water & heating together (Fig.5)
neither, system OFF (Fig.5)
The 102 unit is now set, and the current status of the timeswitch can be
seen on the wheel at the top righthand corner of the unit, (e.g. “OFF
UNTIL C”). Fig.6
User Overrides
The pre-selector wheel can be used to override the set programme on
occasions when you need to change from your normal heating routine.
By turning the wheel anti-clockwise you can turn the unit ON when it
is OFF and vice versa (Fig.7).
Example:
Your programme is set so that your heating comes on at 4pm but
you arrive home earlier than usual, at 2pm and need the heating ON
immediately.
Turn the wheel anti-clockwise until it displays ON UNTIL ‘D’ as
shown.
Thus the system is turned ON manually at 2pm but will revert to the
set programme at the next operation (i.e. OFF at 11pm)
Some other useful pre-selections are:
ALL DAY ON (1 ON/1 OFF)
Turn the Wheel to display “ON UNTIL D”.
ALL DAY OFF
Turn the Wheel to display “OFF UNTIL A”.
Note: Do not operate the pre-selector whilst a tappet is close to the
TIME mark. This may cause the time of day setting of the clock
to be altered, and the time would then need to be reset..
hot water
only
System OFF
heating &
hot water
together
Fig.7