Bartscher 900-Serie Bedienungsanleitung Seite 42

screws correctly into the pressure outlet. The pressure valve must be within the minimum and
maximum values shown below:
If the pressure reading is not within the limits of the table, find out the cause. After solving the
problem, check the pressure again.
Checking the power
Normally, it is sufficient to check that the nozzles installed are the right ones and that the burners
function properly. If desired, further check the power absorbed by using the "Volumetric Method".
With the help of a chronometer and a counter, it is possible to read the volume of gas output to the
appliance in time units. The right comparison volume [E] can be obtained with the formula shown
overleaf in litres per hour (l/h) or in litres per minutes (l/min), by dividing the nominal and
minimum outputs (power) shown in the table of burner features for the lowest heat capacity of the
type of gas foreseen for use with the appliance. This value can be found in the norm tables or can be
provided by the local gas supply company.
The reading must be done when the appliance is already in function.
Checking pilot burner
Check the flame of the pilot burner, which must be neither too short nor too high but must lap the
thermocouple and have a sharp form; otherwise, it is necessary to check the size of the nozzle
depending on the pilot version, as specified in the following paragraphs.
Checking regulation of primary air
All the main burners are provided with primary air regulation. Checking must be done observing the
values shown in the air regulation column of the burner features tables (pagg.35, 36). To regulate
the primary air, proceed as illustrated in the following paragraphs.
ATTENTION! All the parts, protected and sealed by manufacturer may not be regulated by
the installer if not specifically indicated
Joining appliances
Once the levelling and connection operations have been completed, the appliances can then be
joined together. Unroll the sealing strip (1), which is included in the joining the kit inside the
appliance, and stick it to the end of the work surface, about 2-3 mm from the edge (fig. 20, p. 7).
Type of gas
G20 (Methane)
G25 (Methane)
G30 (Butane)
G31 (Propane)
G110/G120 (town gas)
E =
Heat capacity
Pag. 42/68
P P P
n min MAX
[mbar] [mbar] [mbar]
20 17 25
25 20 30
30 20 35
37 25 45
8 6 15
Power