Ariston microSYSTEM 15 RFFI Інструкція з монтажу Посібник з монтажу - Сторінка 19
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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
15 RFFI
Main Burner: n. 8 jets (ø)
Restrictor
Consumption (15°C; 1013mbar)
Consumption (15°C; 1013mbar)
Gas Burner Pressure:
max - min
[1 mbar = 10,197 mmc.a.]
5.1
C
HANGING THE
F
. 5.1
IG
6.
MAINTENANCE
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
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
ø
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.
T
G
YPE OF
AS
It is recommended that the following inspections be carried out on the boiler at
least once a year:
1 -
2 -
3 -
4 -
5 -
6 -
7 -
8 -
9 -
10- Check of the gas safety systems:
11- Check of the electrical connection (make sure it complies with the instructions in
12- General check of the combustion by-products of the discharge/ventilation system.
13- Check of the general performance of the unit.
with
an
ethylene
Methane Gas
G20
3
h
45.67
20
17
1.30
---
1.62
----
8.5
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. Pay attention to put the gas restrictor if convert the boiler from NG to
GPL and to take it out when pass from LPG to NG;
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
IG
installation requirements).
Check the seals for the water connections; replace any faulty seals.
Check the gas seals; replace any faulty gas seals.
Visual check of the entire unit.
Visual check of the combustion process or analysis of combustion by-products
(see section 4.5) and cleaning of the burner if needed.
If called for by point. 3, dismantling and cleaning of the combustion chamber.
If called for by point. 4, dismantling and cleaning of the burner jets.
Visual check of the primary heat exchanger:
- check for overheating in the blade assembly;
- clean the exhaust fan if needed.
Adjustment of the flow rate of the gas: flow rate for lighting, partial load and full load.
Check of the heating safety systems:
- safety device for maximum temperature (overheat thermostat);
- safety device for maximum pressure (safety valve).
- safety device for lack of gas or flame ionisation (detection electrode);
- safety device for gas cock.
the manual).
19
glycol
base
Liquid Butane Gas
G30
80.58
29
20
0.77
3.3
----
1.21
22.1
. 5.1). Rotate clockwise from min. to max. as per
to
the
water
in
the
T
5.1
ABLE
Liquid Propane Gas
G31
80.58
37
25
0.77
3.3
----
1.19
28.8