Ferroli SKY ECO F Instrucción De Uso, Instalación Y Mantenimiento página 88

Gas valve calibration
1. The display will show "q02" flashing; the modulation
current is forced to the pre-calibration value of the
absolute maximum current Offset parameter (para-
meter q02).
2. Press the DHW "+" or "-"buttons to adjust parame-
ter "q02" until the maximum nominal pressure minus
1mbar is reached on the pressure gauge. Wait 10
seconds for the pressure to stabilise.
3. If the pressure read on the pressure gauge is diffe-
rent from the maximum nominal pressure, proceed
with increments of 1 or 2 units of parameter "q02" by
pressing the DHW "+" button: after each change, wait
10 seconds for the pressure to stabilise.
4. When the pressure read on the pressure gauge is
equal to the maximum nominal pressure (the value
of parameter "q02" just set is automatically saved),
press the "On/Off" button: the display will show "q01"
flashing; the modulation current is forced to the pre-
calibration value of the minimum absolute current Of-
fset parameter (value q01).
5. Press the DHW buttons to adjust parameter "q01"
until the minimum nominal pressure plus 0.5mbar is
reached on the pressure gauge. Wait 10 seconds for
the pressure to stabilise.
6. Press the DHW "-" button to adjust parameter "q01"
until the minimum nominal pressure is reached on
the pressure gauge. Wait 10 seconds for the pressu-
re to stabilise.
7. If the pressure read on the pressure gauge is diffe-
rent from the minimum nominal pressure, proceed
with decrements of 1 or 2 units of parameter "q01" by
pressing the DHW "-" button: after each change, wait
10 seconds for the pressure to stabilise.
8. When the pressure read on the pressure gauge is
equal to the minimum nominal pressure (the value of
parameter "q01" just calibrated is automatically sa-
ved), recheck both adjustments by pressing the "On/
Off" button and correct if necessary by repeating the
procedure described above.
9. The calibration procedure ends automatically after
15 minutes or by pressing the DHW "+" button and
"On/Off" button together for 5 seconds.
Checking of gas pressure values and adjustment
with limited range
• Check that the supply pressure complies with that
88
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indicated in the technical data table.
• Connect a suitable pressure gauge to pressure
point "B" located downstream of the gas valve.
• Activate the TEST mode (keeping the "+" and "-"
buttons pressed together for 5 seconds) and fol-
low the instructions for checking the gas pressures
at maximum power and minimum power (see next
paragraph).
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 "On/Off" button for 2 seconds to enter
the gas valve calibration mode with limited range
(variation of 12 points with respect to "autosetting"
calibration).
• The card goes to the "q02" setting (maximum po-
wer); displaying the currently saved value, by pres-
sing the DHW buttons.
• If the maximum pressure read on the pressure gau-
ge is different from the nominal one, proceed with
increments/decrements of 1 or 2 units of parameter
"q02" (maximum power) by pressing the DHW but-
tons: after each change, the value is stored; wait
10 seconds for the pressure to stabilise.
• Press the "On/Off" button for one second (ref. 3 -
fig. 1).
• The card goes to the "q01" setting (minimum po-
wer); displaying the currently saved value, by pres-
sing the DHW buttons.
• If the minimum pressure read on the pressure gau-
ge is different from the nominal one, proceed with
increments/decrements of 1 or 2 units of parameter
"q01" (minimum power) by pressing the DHW but-
tons: after each change, the value is stored; wait
10 seconds for the pressure to stabilise.
• Recheck both settings and correct if necessary by
repeating the procedure described above.
• Pressing the "On/Off" button for 2 seconds returns
to the TEST mode.
• Deactivate the TEST mode (keeping the "+" and "-"
buttons pressed together for 5 seconds).
• Disconnect the pressure gauge.
cod. 3541S170 - Rev. 02 - 06/2019
SKY ECO F