Ariston microSYSTEM 15 RFFI Installationsanleitung Handbuch - Seite 18
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4.5
C
A
OMBUSTION
F
. 4.2
IG
4.6
F
D
UME
ISCHARGE
M
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 0.5 mbar under
conditions of maximum thermal power in order for the boiler
to function properly and without interruption.
4.7
B
S
OILER
AFETY
NALYSIS
The boiler is fitted with the following devices (see section 4.2 for references).
S
YSTEMS
1 - I
2 - I
3 - O
4.
5 - E
bur ner ; adjust it if needed using the values indicated in the table in
section 5 (See the relative section for burner pressure adjustment within the
servicing manual).
The flue connector has two apertures, readings can be taken for
the temperature of the combustion by-products and of the
combustion air, as well as of the concentrations of O
etc. .
To access these intakes it is necessary to unscrew the front
screw and remove the metal plate with sealing gasket.
To achieve the best test conditions, turn the central heating
adjustment knob "G" to the "max" position and remove the
electrical connection to the heating sensor (see section 6.). This
will allow the appliance to operate at the maximum heating
power.
F
:
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.
S
P
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.
A
-
:
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.
D
A
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.
18
:
S
:
HUTDOWN
and CO
,
2
2
F
. 4.3
IG