20
To perform these procedures, see Paragraph 3.3 RESET OPERATIONS
→
21.
Menu 3 is a Settings Menu: it allows the values displayed to be set. The correct values
of these parameters, for optimum performance of the appliance with the plant to be
used connected, have already been set during installation. To set new values for the
parameters, see Paragraph 4.9 PROGRAMMING OF HYDRAULIC PARAMETERS
→
38.
Menus 4, 5, 6 and 7 exclusively concern the installation technician and Robur’s autho-
rized Technical Assistance Centre.
Menu 8 may currently be selected, but not used.
Display and knob
The controller’s display can be viewed through the glass of the viewing aperture on
the front panel of the appliance.
Upon activation, all display’s LED’s light up, and then the name of the controller di-
splays. Subsequently (if the on/off command switch is set to ON), the appliance begins
to operate.
During correct operation the display shows, alternately, the following information:
outlet water temperature, inlet water temperature, and the difference between the
two water temperatures (see Table 3.2 Operating information
→
20).
Table 3�2 – Operating information
OPERATING MODE: HEATING
PARAMETER
THE DISPLAY SHOWS
Hot outlet water temperature
50.0
Hot inlet water temperature
40.0
Differential temperature (outlet - inlet)
10.0
Example of data visualised on display: water temperature and differential
If there are operating problems, the display shows, sequentially, the operating codes
corresponding to the problem detected. A list of these codes with their description
and the procedure to follow to bring the appliance back to correct operation is provi-
ded in Paragraph 8.1 MACHINE OPERATING CODES
→
77.
The knob is used to display or set parameters, or to execute actions/commands (e.g.: a
function or reset), when permitted.
HOW TO ACCESS THE MENUS
To use the knob with the special key supplied with the appliance:
•
You will need: the appliance’s electrical power switches set to “ON”; the controller’s
display sequentially shows the operating data (temperature, delta T°) regarding the
current mode (e.g.: heating) and any active operating codes ("u/E...").
Remove the front panel by removing the fixing screws.
1.
Remove the cover of the electrical panel to access the knob.
2.
Use the special key through the hole to operate the knob and access the con-
3.
troller’s menus and parameters.
To display the menus just press the knob once: the display shows the first menu:
4.
"0." (= menu 0).
The display shows “0.”. To display the other menus, turn the knob clockwise; The
5.
display will read, in order: "1.", "2.", "3.", "4.", "5.", "6.", "7.", "8." and "E" (see 3.1 Menu
of electronic board
→
19).
To display the parameters in a given menu (for example, menu 0), turn the knob
6.
until it displays the menu in question (in the example: "0.") and press the knob:
