Technical data

6 Routine operation
Installation, Use and Maintenance Manual – GA Line ACF Series
31
2. Remove the cover of the electrical board to access
the S61 board knob.
3. Act on the knob by means of the special key through
the suitable hole.
4. Press the knob once to display the menus: the rst
menu is displayed, "0." (= menu 0).
5. Turn the knob clockwise to scroll down and display
the other/subsequent menus; the menu numbers
will be displayed in order, "1.", "2.", ... , "6." ... or "E" (=
exit).
6. Select the menu of interest (e.g. display "2.___" =
menu 2) by pressing the knob; the rst parameter
code will be displayed, in menu order (e.g. display
"2._20" = parameter 20 in menu 2).
7. Turn the knob clockwise to scroll down the other pa-
rameters in the menu; the codes will be displayed in
order (e.g. display "2._20", "2._21", ... "2._25" = param-
eters 20, 21, ... 25 in menu 2), or letter "E" (= exit) at
the end of the list. "
8. Select the parameter of interest (e.g. with code 075
in menu 3) by pressing the knob; the gure previous-
ly assigned to the parameter will be displayed, read
only or to be set (e.g. the gure "7" for parameter 075
in menu 3 = water temperature set-point at 7 °C); if
instead of a gure/setting it is a command, a blinking
code is displayed (e.g. "reS1" for the ame lockout re-
set command).
9. Press the knob to reconrm the gure; or rotate the
knob to modify the gure, and press at the end to
conrm or set the new gure; if however, it is a mat-
ter of controlling an appliance operation, press the
knob to execute it.
10. To exit a parameter menu or the menu list and go
back to the higher level, turn the knob to display the
letter "E" for exit, then press the knob again.
11. Place the cover back on the electrical panel opening
and t the appliance's front panel back on.
6.5 MODIFYING SETTINGS
Modify settings via the DDC
If the device is connected to the DDC control, refer to
the relevant manual to modify settings.
How to raise/lower the water temperature set-point
The water temperature set-point establishes the delivery tem-
perature to the system (water output from the appliance), or
return from the system (water input in the appliance). The tem-
perature is pre-set by the TAC upon First Switch-On.
If the appliance is not connected to a DDC control, to
raise/lower the water temperature set-point with the
S61 board, proceed as follows:
1. Access menu 3 under parameter 75 (= water temper-
ature set-point) by rotating and pressing the knob;
"3._75" must be displayed (procedure Paragraph
6.4p.29);
2. Display the parameter value by pressing the knob;
the previously set value is displayed (from 3 to 25 °C);
to reconrm the pre-existing value press the knob
again, otherwise go to point 3.
3. Turn the knob to modify the value, increasing or de-
creasing it, and press it to set the new value;
4. Exit menu 3, and from the menu list, by selecting and
pressing letter "E" twice, and go back to the normal
display of detected temperature data.
Do not modify complex settings
Specic technical and system knowledge is required for
complex settings. Contact a TAC.
6.6 RESTARTING A LOCKEDDOWN UNIT 
RESET
Fault signals on the display
In the event of locked-down appliance, an operative code ash-
es on the display (rst green gure on the left, letter "U" = warn-
ing or "E" = error).
▶ To restart the appliance you must know and perform the
procedure concerning the issue signalled and identied by
the code (Paragraph 8.1p.33).
▶ Only act if you are familiar with the issue and with the pro-
cedure (technical expertise and professional qualications
might be required).
▶ If you do not know the code, the problem, or the procedure,
or you do not have sucient skills, and in any case of doubt,
contact the TAC.
Locked-down appliance
An external procedure (reset or repair) is required due to an ap-
pliance fault or problem with the system.
▶ A reset may be enough for a temporary and provisional
anomaly.
▶ For a fault or breakdown, alert the maintenance technician
or TAC.
Reset
There are two options for resetting a fault:
(1) If the appliance is connected to a DDC you may act through
the control device, as described in the relevant manual.
(2) You may act directly from the S61 board as described below
(if the appliance is controlled with external request, this is the
only option).
How to perform reset from the S61 board
To perform the reset directly from the S61 board:
1. Access Menu 2 under Parameter "__0", to reset ame
lockout (Error E12), or Parameter "__1" for any oth-
er generic reset, turning and pressing the knob;
"2.__0"/"2.__1" must be displayed (procedure Para-
graph 6.4p.29);
2. Press the knob to display the ashing reset request
(e.g. "reS1" to reset ame block).
3. Press the knob again (the second time) to perform
the reset; the reset request stops blinking, then "2._
XX" is displayed again (e.g. "2.__0").