Alpha E-Tec Plus 28NX - Page 39

Alpha E-Tec Plus 28NX, 33NX and 38NX - Commissioning
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If the parameter can be adjusted, it activates the option to adjust the
parameter using the CH ( ) +/- buttons.
Fig. 6.9
6.14 PROGRAMMING THE PCB
The boiler has the ability to programme several operational parameters. By modifying these parameters as
described below, the boiler can be adapted according to specific needs.
Accessing the menu displays the first item in the list of service call
parameter families.
The desired parameter family can be selected by pressing 'INFO'
button to scroll forward.
Scrolling through the list of parameter families occurs in a circular
mode:
G→P→t→A→G→P→..... then press the 'MODE' button to enter the
selected parameter family.
To enter the first digit of the password use the DHW (
) +/- buttons,
to enter the second digit use the CH (
) +/- buttons.
To confirm the password and access the menu, press the 'MODE' button.
To select the desired parameter (e.g. t.13) press the 'INFO' button
to scroll through the parameters within the family (e.g. t.) previously
selected and then confirm by pressing the 'MODE' button.
To access the programming phase, press and hold the 'MODE' and
'RESET' buttons at the same time for more than 5 seconds, the display
will show two dashes ( - ) single blinks and you must enter the password
'69' to access the programming menus.
Fig. 6.5
Fig. 6.7
Fig. 6.8
Fig. 6.6
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