Operation Manual

9
5.TIME CLOCK
NO
TE
: the time clock is for central heating control only.
T
he 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).
E
XAMPLE
T
o 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
c
orrect 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
m
anually
;
- 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
always 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.