Bertos GL18 Serie Manual De Instrucciones página 105

PUT INTO SERVICE
Before installation
Before installing the appliance, remove the protective
wrapping. Thoroughly clean the work-surface and the
outside of the appliance with lukewarm water and
detergent, using a soft cloth. Dry with a clean cloth.
Start-up
Before starting the appliance, make sure that its
specifications (category and type of gas used) match those
of the family and group of the gas available locally.
If not, adapt the appliance to the gas family or group
required (see paragraph "Running the appliance on other
types of gas"). Carry out the start-up according to the
User's Instructions.
Testing power rating
Use the nozzles for rated output on the appliances.
Capacity can be of two types:
- rated output, as given on the data plate;
- reduced.
These nozzles are shown in the table "BURNERS".
The gas supply pressure must always be within the ranges
shown in the burners table.
The appliance will not work outside the above pressure
thresholds. If you wish to check the rated output further,
you may do so by using a gas meter according to the so-
called "volumetric method".
However, it is normally enough to simply check that the
nozzles are functioning correctly.
Checking input pressure (Fig. 1)
The input pressure should be measured by using a gauge
(min. resolution 0.1 mbar).
Remove the screw (A) from the pressure socket and
connect the gauge; after measuring, retighten the screw
so that it's absolutely airtight (A).
IMPORTANT: The pressure must be checked with all gas
equipment connected and operating.
Check the power according to the volumetric method
Using a gas counter and a stopwatch, you can measure the
gas consumption in a given unit of time. This value will be
compared with the value E, which is calculated as follows:
Burner power
E =
Gas heating power
It's important that the power is measured when the
appliance is in a state of inertia.
Both rated and reduced powers, calculated at the rated
pressure value, are obtained by referring to the "BURNERS"
table. The value of gas heating power can be requested
from the local gas company.
Checking the operation
Ensure that the type of used nozzles corresponds to that
shown in the "BURNERS" table.
Check whether the pressure reducer has a flow rate
greater than the sum of the consumption flow rate of all
connected equipment. Check that the gas supply pipes
are adequate.
Checking the pilot light
When correctly adjusted, the pilot light will completely
surround the thermocouple; if it does not, check to see if
the used injector is suitable for the type of gas.
Checking primary air (Fig. 2/3/4)
Regulation is performed by a Venturi pipe by adjusting the
"X" height shown in the "BURNERS" table and verifying the
aspect of the flame is uniform, well ventilated and not noisy.
Checking the functions
- Start the appliance;
- Check the gas pipes for leaks;
- Check the burner flame, even at the minimum.
Notes for the installer
- Explain and demonstrate how the appliance works to
the user according to the instructions, and hand him the
user's manual.
- Remind the user that, in the event of any structural
alterations or modifications to the room that houses the
appliance, the appliance functions must be rechecked.
Operation with other gas types
To use another type of gas, refer to the "BURNERS" table to
identify the nozzles to be utilized, The diameter measure
is in hundredths of a mm and is specified per each nozzle.
For models with a pressure regulator (/R), check and adjust
the output pressure. After changing the nozzles, carry out
all the operational checks described within the paragraph
"PUT INTO SERVICE" and change the specification relevant
to the gas type on the unit's technical plate.
"/R " model output pressure regulation
To reach the adjustment screw, remove cover "C" (see fig.
9), unscrewing screw "D, " inserting a suitable screwdriver
into slot "E" and lifting it. Connect the pressure gauge to
output pressure outlet "B" and refer to the "BURNERS" table
to adjust the output pressure, using a suitable screwdriver
on screw "F. "
Replacement of the burner nozzles
8, 10 ,18 and 30 L models
Remove the panel by unscrewing the screws in view at the
lower edge or in the front; remove the nozzles and replace
them with suitable ones according to the "BURNERS" table.
Be careful to keep and assemble the seal gasket, if any.
7 ,15 ,20 and 22 L models
The nozzles can be reached by opening the cabinet doors.
Unscrew and replace them with suitable ones according to
the "BURNERS" table. Be careful to keep and assemble the
seal gasket, if any.
Regulation of the pilot light (fig. 11A - 11B)
7, 8, 10 and 18 L models
The pilot light operates with a nozzle and fixed air. The only
requested operation is to replace the nozzles according to
the gas type as follows:
- Remove the control panel by loosening the fixing
screws (where necessary).
- Loosen the nut pressing the biconical coupling (no. 14);
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