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2.10 USE OF THE INDOOR UNIT.
Before ignition make sure the heating system is filled with water
and that the manometer (8) indicates a pressure of 1 ÷ 1.2 bar.
- Open the gas cock upstream from the indoor unit.
The indoor unit operates automatically according to the settings
on the control panel. With no demand for heat (central heating or
domestic hot water production) the indoor unit goes to “standby”
function, equivalent to the indoor unit being powered without
presence of flame. Each time the burner ignites, the relative flame
present symbol is displayed (11) with relative output scale.
•
Solar function (
).
This function is activated automatically if the
indoor unit detects a probe on the DHW inlet (optional) or if the “Solar
ignition delay” parameter is more than 0 seconds.
During a withdrawal, if the inlet water is hot enough or if there
is “Solar ignition delay” time, the system does not switch on, the
D.H.W. withdrawal symbol (
) appears on the display along
with the flashing solar function symbol (
).
When the water supplied by the solar system is at a temperature lower
than what is set, and if the “Solar ignition delay” time has elapsed, the
indoor unit switches on. At this point, the solar function symbol remains
permanently on.
•
“Off” mode.
By holding the “
” button down for 8 secon-
ds, the display switches-off and the indoor unit is off completely.
The safety functions are not guaranteed in this mode.
ATTENTION:
in “Stand-by” and “Off” mode, the in-
door unit is to be considered still live.
In “Off” mode, a lit “dot” is displayed in the
centre of the display.
•
Display functioning.
The display lights up while the control
panel is being used; after a set inactivity period, the brightness
drops until only the active symbols are displayed. The lighting
mode can be varied via parameter “t8” in the P.C.B. programming
menu.
2.11 INDOOR UNIT INFORMATION MENU.
By pressing the button “
” the “Information menu” is activated
for at least 1 second, displaying some system operating parameters.
To scroll through the various parameters, press the buttons “DHW
regulation” “
“.
With the menu active on the indicator (19) the parameter via the
letter “d” plus the number of the parameter that is being displayed
will alternately show
To view the parameter value, select it by pressing the button
.
Press “
” or wait 15 minutes to go back to the previous
screen or exit the menu.
Id
Parameter
Description
d 0.0
Not used
d 0.1
Displays the flame signal (uA)
d 0.2
Displays the primary exchanger output instant heating flow temperature
d 0.3
Displays the instant output temperature from the DHW exchanger
d 0.4
Displays the values set for central heating set
d 0.5
Displays the values set for DHW set
d 0.6
Not used
d 0.7
Displays the temperature of the inlet DHW (with optional DHW inlet probe present)
d 0.8
Displays the system return water temperature
d 0.9
Displays the list of the last eight anomalies.
(to scroll the list press the “central heating temperature regulation” buttons (6 and 7))
d 1.0
Anomaly list reset. Once “d 1.0” is displayed, press the Reset button for at least 3 seconds; deletion is confirmed via the “88” sym-
bols flashing for two seconds
d 1.1
Not used
d 1.2
Displays the pump operating speed
d 1.3
Not used
d 1.4
Displays the pump flow rate (lh/100)
d 1.5
Displays the fan operating speed (rpm/100)
d 1.6
Displays the temperature read on the flue probe
d 1.7
Displays the calculated flow temperature
d 1.8
At the end of the screed heater function, displays for how many hours the flow temperature remained at “Top set”
d 1.9
Toggles between the safety software version and the functional software version
d 2.0
Not used
d 2.1
Not used
d 2.2
Not used
