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Ariston ACO SERIES ユーザーマニュアル
5.
TIME CLOCK
N
: the time clock is for central heating control only.
OTE
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
manually;
- 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.
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