EASY TECH D F
56
EN
cod. 3542B960 - Rev. 00 - 01/2023
Activation of Auto-setting function for gas valve calibration
THIS PROCEDURE MUST ONLY BE CARRIED OUT IN THE FOLLOWING CASES: GAS VALVE REPLACEMENT,
CARD REPLACEMENT, CONVERSION FOR GAS CHANGE
.
The B&P Gas Valve (with integrated modulating operator) does not provide for mechanical calibration: the minimum
and maximum power adjustments are therefore electronically done via two parameters:
Gas valve pre-calibration
1.Connect a pressure gauge to monitor the gas valve outlet pressure.
2.Enable the
Auto-setting
function (Parameter b12=1).
3.Activate the calibration procedure by pressing the h button and Eco/Comfort button together for 5 seconds.
The message "Au-to" immediately appears (in two successive flashes) and the burner is lit. Within 8 seconds (nat-
ural gas and LPG) the boiler finds the ignition point. The ignition point, absolute minimum current Offset (Parameter
q01) and absolute maximum current Offset (Parameter q02) values are stored by the card.
Gas valve calibration
1.The display will show "q02" flashing; the modulation current is forced to the pre-calibration value of the absolute max-
imum current Offset parameter (Parameter q02).
2.Press the DHW buttons to adjust the parameter "q02" until the maximum nominal pressure minus 1mbar is reached
on the pressure gauge. Wait 10 seconds for the pressure to stabilise.
3.Press the
DHW “+”
button to set the parameter
“q02”
until the maximum nominal pressure is reached on the pressure
gauge. Wait 10 seconds for the pressure to stabilise.
4.If the pressure read on the pressure gauge is different from the maximum nominal pressure, proceed in increments
of 1 or 2 units of the parameter "q02" by pressing the
DHW “+”
button: after each change, wait 10 seconds for the
pressure to stabilise.
5.When the pressure read on the pressure gauge is equal to the maximum nominal pressure (the newly calibrated value
of the parameter "q02" is automatically saved), press the
heating “–”
button: the display will show "q01" flashing;
the modulation current is forced to the pre-calibration value of the absolute minimum current Offset parameter (Pa-
rameter q01).
6.Press the DHW buttons to adjust the parameter "q01" until the minimum nominal pressure plus 0.5mbar is reached
on the pressure gauge. Wait 10 seconds for the pressure to stabilise.
7.Press the
DHW “-”
button to adjust the parameter "q01" until the minimum nominal pressure is reached on the pres-
sure gauge. Wait 10 seconds for the pressure to stabilise.
8.If the pressure read on the pressure gauge is different from the minimum nominal pressure, proceed in decrements
of 1 or 2 units of the parameter
“q01”
by pressing the
DHW “-”
button: after each change, wait 10 seconds for the
pressure to stabilise.
9.When the pressure read on the pressure gauge is equal to the minimum nominal pressure (the newly calibrated value
of the parameter "q01" is automatically saved.), recheck both adjustments by pressing the heating buttons and cor-
rect them if necessary by repeating the procedure described above.
10.The calibration procedure ends automatically after 15 minutes or by pressing the
heating “+”
and Eco/Comfort but-
tons together for 5 seconds.
Checking of gas pressure values and adjustment with limited range
•Check that the supply pressure complies with that indicated in the technical data table.
•Connect a suitable pressure gauge to the pressure sampling point
“B”
located downstream from the gas valve.
•Activate the
TEST
mode and follow the instructions for checking the gas pressures at maximum power and minimum
power (see next par.).
If the maximum and/or minimum nominal pressures read on the pressure gauge are different from those indicated in
the technical data table, proceed with the next sequence.
•Press the Eco/Comfort button for 2 seconds to go to the gas valve Calibration with limited range mode.
•The card goes to the setting
“q02”
; displaying the currently saved value by pressing the DHW buttons.
•If the
maximum pressure
read on the pressure gauge is different from the nominal one, proceed in increments/dec-
rements of 1 or 2 units of the parameter
“q02”
by pressing the DHW buttons: after each change, the value is stored;
wait 10 seconds for the pressure to stabilise.
•Press the heating “-” button (ref. 3 - fig. 1).
Contents
Description
Natural Gas
Propane Gas
q01
Absolute minimum current offset
0÷100
0÷150
q02
Absolute maximum current offset
0÷100
0-150
Содержание EASY TECH D F
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Страница 122: ...EASY TECH D F 122 RU cod 3542B960 Rev 00 01 2023 2 8 1 0 F37 1 8 300 Fh 0 8 8 1 9 9 2 1 1...
Страница 123: ...EASY TECH D F 123 RU cod 3542B960 Rev 00 01 2023 2 2 1 2 2 B 2009 142 5 C 15 C A 2 3 B B cap 4 1 25 Fr 1 F 10 CaCO3...
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