Ariston microSYSTEM 28 RFFI Руководство по установке - Страница 22
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4.8
D
RAINING THE
5.
GAS ADJUSTMENTS
CATEGORY II2H3+
Lower Wobbe Index (15°C;1013mbar)
Nominal Delivery Pressure
Minimum Delivery Pressure
21 RFFI
Main Burner: n. 12 jets (ø)
Consumption (15°C; 1013mbar)
Consumption (15°C; 1013mbar)
Gas Burner Pressure:
max - min
28 RFFI
Main Burner: n. 14 jets (ø)
Consumption (15°C; 1013mbar)
Consumption (15°C; 1013mbar)
Gas Burner Pressure:
max - min
[1 mbar = 10,197 mmc.a.]
5.1
C
HANGING THE
T
G
YPE OF
AS
S
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.
MJ/m
mbar
mbar
mm
m
3
/h
Kg/h
mbar
m
3
/h
Kg/h
mbar
The outlet pressure of the gas cock is obtained by completely loosening the
screw on the solenoid. The maximum pressure of the gas to the burner will
be equal to the nominal delivery pressure minus the head loss within the
gas valve.
The boiler can be converted to use either methane (natural) gas (G20)
or LPG (G30 - G31) by an Authorised Service Centre.
The operations that must be performed are the following:
1. Replace the jets on the main burner (see table in section 5);
2. Adjust the maximum and minimum thermal capacity values for the boiler
(see table in section 5);
3. Replace the gas rating plate;
4. Adjust the maximum thermal power setting;
5. Adjust the soft-light feature (open the cover of the regulation screw on the
gas valve (see F
installation requirements).
Methane Gas
G20
3
h
45.67
20
17
1.30
2.4 - 1.05
----
8.5 - 1.7
1.30
3.15 -1.26
----
11.0 - 1.6
. 5.1). Rotate clockwise from min. to max. as per
IG
22
Liquid Butane Gas
Liquid Propane Gas
G30
80.58
29
20
0.77
----
1.78 - 0.78
27.5 - 6.2
0.77
----
1.78 - 0.78
27.7 - 4.6
T
5.1
ABLE
G31
80.58
37
25
0.77
----
1.76 - 0.77
37.4 - 8.0
0.77
----
1.76 - 0.77
35.5 - 6.0