ENGLISH
16
MySMART R.S.I:
- Position the function selector on to switch off the boiler (fig.
48a).
- Turn the DHW temperature selector on (fig. 48a).
Wait until the ignition of the burner (about 6 seconds). The display
shows “ACO”, the boiler operates at full power heating.
- Remove the screw
C
and the cover
E
on the air box (fig. 49).
- Insert the probes of the analyzer in the positions provided on the
air box.
Th
e flue gas analysis probe must be fully inserted as far
as possible.
- Check that the CO
2
values match those given in the table, if the
value shown is different, change it as indicated in the chapter
entitled “Gas valve calibration”.
MAXIMUM CO
2
METHANE
GAS (G20)
LIQUID GAS
(G31)
20 R.S.I.
9,0
10,0
%
MINIMUM CO
2
METHANE
GAS (G20)
LIQUID GAS
(G31)
20 R.S.I.
9,0
10,0
%
- Check the flue combustion.
The “combustion analysis” function remains active for a limited time
of 15 minutes; if a delivery temperature of 90°C is reached the burn-
er will extinguish. It will reignite when this temperature drops below
78°C.
If you want to interrupt the procedure turn the domestic hot water
temperature selector so that it is within the “+” and “-” symbols.
Subsequently:
- remove the analyser probe and close the combustion analysis inlet
- close the instrument panel and refit the shell
When checks are completed:
- Position the knobs depending on the type of operation desired.
6 - CIRCULATOR SETTINGS
Circulator residual discharge head
The boilers is equipped with an already hydraulically and electrically
connected circulator, whose useful available performance is indicat-
ed in the graph.
The circulator comes set from the factory with a 6 metre discharge
head curve.
The boiler is equipped with an anti-blocking system which starts up
an operation cycle after every 24 hours in standby with the mode
selector in any position.
The "antiblocking" function is active only if the boiler is electri-
cally powered.
Operating the circulator without water is strictly forbidden.
If you need to use a different curve you can select the desired level
on the circulator.
Below the main characteristics and the ways to set up their desired
operation are listed.
User interface
The user interface is made up of a button (
A
), a two-coloured red /
green LED (
B
) and four yellow LEDs (
C
) arranged in a row.
The user interface allows the operating performance to be viewed
(operating status and alarm status) and it also allows the circulator
operating modes to be set.
The performance, indicated by the LEDs (
B
) and (
C
) is always visible
during normal operation of the circulator whereas the settings can be
carried out by pressing the button (
A
).
Operating status indication
When the circulator is in operation the LED (
B
) is green. The four
yellow LEDs (
C
) indicate the electrical energy consumption (P1) as
shown in the following table
LED status
CIRCULATOR status
Consumption in
% of MAX P1 (*)
Green LED on +
1 yellow LED on
Operating at minimum
0~25
Green LED on +
2 yellow LEDs on
Operating at
minimum-medium
25~50
Green LED on +
3 yellow LEDs on
Operating at medium-
maximum
50~75
Green LED on +
4 yellow LEDs on
Operating at maximum
100
(*) For the power (P1) absorbed by the circulator see the indications
in the “Technical Data” table.
Alarm status indication
If the circulator has detected one or more alarms the two-coloured
LED (
B
) will be red. The four yellow LEDs (
C
) indicate the type of
alarm as shown in the following table.
LED status
ALARM
description
Status
CIRCULATOR
Possible
SOLUTION
Red LED on +
1 yellow LED
on (LED 5)
The drive shaft
is jammed
Start attempt
every 1.5
seconds
Wait or unjam
the drive shaft
Red LED on +
1 yellow LED
on (LED 4)
Low input
voltage
Warning only.
The circulator
continues to
operate
Check the
input voltage
Red LED on +
1 yellow LED
on (LED 3)
Electrical power
supply fault or
faulty circulator
The circulator
is stopped
Check the
electrical
power supply
or replace the
circulator
If there are several alarms the circulator will display only the
alarm with the highest priority.
Display of active settings
With the circulator powered, press briefly on the button (
A
) to view
the active configuration of the circulator. The LEDs indicate the active
settings.
In this phase no variations can be made to the circulator configura-
tion. Two seconds after the button (
A
) has been pressed the user
interface returns to the normal operating status display.
Key lock function
The purpose of the key lock function is to prevent accidental modifi-
cations to the settings or the improper use of the circulator.
When the key lock function is activated, long-pressing the button (
A
)
is prevented. This prevents the user from entering the circulator's
operating modes setting section.
Enabling/disabling the key lock function is achieved by pressing the
button (
A
) for more than 10 seconds. During this step all of the LEDs
(
C
) will flash for 1 second.
Changing the operating mode
In normal operating conditions the circulator works with the factory
settings or the last settings carried out.
To change the configuration:
Ensure that the key lock function is deactivated.
Press the button (
A
) for more than 2 seconds until the LEDs begin
to flash. Short-press the button (
A
) within 10 seconds and the user
interface will move on to display the next settings. The various avail-
able settings will appear in a cyclic sequence.
If the button (
A
) is not pressed, the last setting will be stored.
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