Ariston ACO SERIES Посібник користувача - Сторінка 9

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TIME CLOCK

: 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.