Ariston 41-116-06 Installation Instructions Manual - Page 20

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4.6

UME

ISCHARGE

ONITORING

In the boiler, it is possible to monitor the correct operation of

the flue exhaust/air intake, checking for a loss of general

pressure in the system. Through the use of a differential

manometer connected to the test points of the combustion

chamber, it is possible to detect the ∆P of operation of the air

pressure switch.

The value detected should not be less than 0.55 mbar under

conditions of maximum thermal power in order for the boiler

to function properly and without interruption.

4.7

OILER

AFETY

4.8

RAINING THE

The boiler is fitted with the following devices (see section 4.2 for references).

YSTEMS

1 - I

2 - I

3 - O

4. A

5 - E

The heating system must be emptied as follows:

YSTEM

- Turn off the boiler;

- Attach a hose pipe and open the drain valve;

- Empty the system at the lowest points (where present). When the heating

system is unused for an extended period of time, it is recommended that you

add antifreeze with an ethylene glycol base to the water in the

heating lines and radiators if the ambient temperature drops below 0°C during

the winter.

This makes repeated draining of the entire system unnecessary.

GNITION

AILURE

This indicates ignition failure when a flame is not detected within 7

seconds of starting an ignition sequence. The L.E.D. "F" will illuminate

to signal the shutdown status.

The system can be reset by pressing and releasing the button "E" after

checking to make sure that the gas cock is open.

NSUFFICIENT

YSTEM

RESSURE

In the event of insufficient water pressure in the heating system, a

safety device will shutdown the boiler. Check the system pressure on

the pressure gauge "J" and if it is less than 0.4 bar refill the system to

1.5 bar. Once the system pressure is at the correct level the boiler will

ignite automatically.

VERHEATING

This control shuts off the boiler in the case where the primary circuit

reaches a temperature in excess of 105°C.

The red L.E.D. "F" will illuminate to signal this shutdown status.

The system can be reset by waiting a few minutes for the primary

exchanger to cool down and then by pressing and releasing the "E"

button.

NTI

FROST DEVICE

The boiler is equipped with a device that, in the event of the water

temperature going below 6°C, the burner ignites at the minimum power

until the boiler water reaches a temperature of 16°C.

This device operates only if the boiler is functioning perfectly and:

- the system pressure is sufficient;

- the boiler is powered electrically - L.E.D. "B" illuminated;

- the gas is turned on.

XHAUST

ISCHARGE

NOMALY

The boiler is fitted with safety devices, which in the event of defective

discharge of exhaust fumes, automatically interrupts the gas supply,

thereby shutting off the boiler.

The shutdown of the boiler is temporary and when the discharge state

of exhaust fumes has returned to normal, the boiler automatically turns

back on

HUTDOWN

. 4.3