29
4.8.2 Setting the gas type
After changing the nozzle, you must set the gas type: from the user interface, open the technical parameter programming page and
select gas type.
The parameter
P00
corresponds to the gas being supplied, as follows:
Gas
Parameter P00
Natural gas
0
Propane
1
To open technical parameter programming page:
• press the following keys at the same time:
+
for 5 seconds until symbols P and are displayed on top right, and
at the centre of the display are four zeroes, the first being flashing
•
enter code “1398”, one digit at a time, by turning the knob and confirming every single digit by pressing it (1, confirm; 3, confirm; 9,
confirm; 8, confirm).
WARNING
If the code is not entered properly, equipment will keep asking user to enter it.
•
confirm as soon as display shows
P00
•
when spanner symbol is flashing, turn knob to select value 0 or 1
•
press knob to confirm
• press key
to quit the programming of technical parameters
4.8.3 Checking the offset
To calibrate the offset, you need a pressure gauge having a resolution of 1 Pa, periodically calibrated in accordance with the provisions
of the relevant manufacturer.
Once the gas type has been set (see paragraph
4.8.2 Setting the gas type
), gas valve offset must be calibrated: this operation must
be carried out with equipment on at minimum power.
To set equipment operation to minimum power, you must use the flue cleaning function.
Proceed as follows:
• press the following keys at the same time:
+
for 5 secs until three digits are shown at the centre of the display,
together with the % symbol
• turn knob to set operation percentage: 0% corresponds to operation at minimum power, 100% corresponds to operation at maximum
power. Set the value to 0%.
• With equipment on at minimum power, connect pressure gauge to valve pressure pick-up point
Pint
(fig. 25) and the negative to
pressure pick-up point
Check
on fan worm screw (fig. 26), after loosening the blanking caps. Check the pressure between the two
points.
•
The measured value must correspond to the “Offset value for gas valve” specified in the technical specifications table (see
8.
TECHNICAL SPECIFICATIONS TABLES - GAZELLE EVO
).
•
If necessary, adjust the offset by working screw A (fig. 25), after loosening the lock screw.
• After adjustment, tighten back the blanking caps.
•
to quit the flue cleaning function, press
The flue cleaning function remains active for 10 minutes, i.e. the time necessary for completing the equipment calibration operations.
Содержание Gazelle EVO 3000
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