MAINTENANCE INSTRUCTIONS
38
P
ARAMETER
P09
–
S
ETS THE IGNITION SEQUENCE
This parameter is used to set the gas pressure during the starting up of
the boiler..
To enter the parameters menu, follow the previously described
procedure (
see paragraph
5.2 ‘Accessing the parameters menu’
-
steps 1-5).
6.
Use ‘
’ and ‘
’ buttons (D.H.W temperature setting)
to
modify the value of the parameter within the prescribed limits:
00 = minimum mechanical
gas pressure set at the gas valve;
99 = maximum allowed pressure, depending on the chimney length
and the type of gas used.
The default value is 50.
7.
Press mode selection button ‘
’ to confirm and to render the
new adjustment operative. The parameter number (P09) will appear
on the display.
8.
To exit from the parameters menu, press simultaneously ‘
’ and
‘
’ buttons.
P
ARAMETER
P10
–
D.H.W.
P
RIORITY FUNCTION
(Not applicable to instantaneous boilers
w/dual circuit exchanger)
This parameter allows to maintain the diverter valve on D.H.W mode
for a time equal to the post-circulation, keeping hot the secondary heat
exchanger.
To enter the parameters menu, follow the previously described
procedure (
see paragraph
5.2 ‘Accessing the parameters menu’
-
steps 1-5).
6.
Use ‘
’ and ‘
’ buttons (D.H.W temperature setting)
to
modify the value of the parameter:
00 = Off
01 = On
7.
Press mode selection button ‘
’ to confirm and to render the
new adjustment operative. The parameter number (P10) will appear
on the display.
8.
To exit from the parameters menu, press simultaneously ‘
’ and
‘
’ buttons.
P
ARAMETER
11
–
LEGIONELLA PREVENTION FUNCTION
(For storage boilers only)
To enter the parameters menu, follow the previously described
procedure (
see paragraph
5.2 ‘Accessing the parameters menu’
-
steps 1-5).
6.
Use ‘
’ and ‘
’ buttons (D.H.W temperature setting)
to
modify the value of the parameter:
00 = Off
01= On (default value in storage boilers)
7.
Press mode selection button ‘
’ to confirm and to render the
new adjustment operative. The parameter number (P11) will appear
on the display.
8.
To exit from the parameters menu, press simultaneously ‘
’ and
‘
’ buttons.
50
P09
00
P10
01
P11
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