User manual
10
5.TIME CLOCK
NOTE: the time clock is for central heating control only.
The time clock is provided with 96 switches, called riders, each of
which covers a time interval of 15 minutes (four per hour).
When a rider is switched from the inside (off setting) to the outside
of the clock border (on setting), the circuit is closed (switch on) for
a period of 15 minutes and then the boiler starts if the room ther-
mostat (if installed) or the heating thermostat require heat (heat-
ing function on).
EXAMPLE
To set the heating of your home in the time interval from 7.00
am to 8.00 am and from 7.00 pm to 10.00 pm every day (see
diagram):
- rotate the outer ring of the clock in a clockwise direction until the
correct time of day (24h) lines up with the arrow on the clock (at
approx. 2 o’clock position);
- under no circumstances should the minute hand be moved
manuall
y;
- make sure all the switches, i.e. the riders, are placed on the
inside of the clock border;
- pull outward the riders for 7.00 am and 8.00 am, and then all rid-
ers between these two;
- repeat this for 7.00 pm and 10.00 pm.
Other heating intervals may be set in the same way.
The clock is provided with a selector switch with three positions
(see figure):
1.Position “I” CONSTANT: in this position, the clock circuit is
alwa
ys closed (switch on), therefore the boiler will constantly be
on and will only shut off upon the request of the room thermo-
stat (if installed) or the heating thermostat;
2.
Position “O” HEATING OFF: in this position, the clock circuit is
always open (switch off) and the boiler will therefore never ignite
for heating;
3.
“Central” Position
PROGRAMMING ACTIVE: in this position,
the programming set by the user is active.
P
r
o
g
.
Day
Manual switch
Summer and
winter time
setting
Reset
Enter
weekday/s
Enter
the hours
Week-
days
flash
Enter
minutes
Enter
switching
times
Imput
time
Status
6. DIGITAL PROGRAMMER
Operating the time switch
The steps marked with the symbol “ ” are necessary to carry
out a switching prog
ram.
Preparing for Operation
Activate the “Res” switch (=RESET) to reset the time switch to
its default setting (activ
ate using a pencil or similar pointed
instrument). Do this:
- every time you wish to “reset” the time switch
- to erase all switching times and the current time of day.
After approximately two seconds the following display
appears:
Enter current time and weekday
- Keep the “ ” key pressed down
Dur
ing the summer time period press the +/- 1h key once.
Enter the hour using the “h” key
Enter the minutes using the “m” key
Enter the day using the “Day” key
1 = “Monday”..............7 = Sunday
- Release the “ ” key.
Unit 3A, Thornton Road Ind. Estate Off Hockney Road Bradford, BD8 9HQ
01274 488 388
www.heatingspares247.com
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