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on the type of system). It is carefully calculated by the installer on the
basis of the following formula:
Design delivery temp - Tshift
KT =
20 - Design min outside temp
Tshift = 30 °C standard system
25 °C floor system
If the calculation produces an intermediate value between two
curves, you are advised to choose the compensation curve nearest
the value obtained.
Example: if the value obtained from the calculation is 1.3, this is be-
tween curve 1.0 and curve 1.5. Choose the nearest curve, i.e. 1.5.
Selection of the KT must be made by acting on the P3 trimmer on the
card (see multi-wire electrical diagram).
To access P3:
1.
remove the shell,
2.
turn the instrument panel upside down
- remove the electrical parts inspection cover, undoing the 2 fixing
screws
Live electrical parts (230 Vac).
The following KT values can be set:
- standard system: 1.0 - 1.5 - 2.0 - 2.5 - 3.0
- floor system: 0.2 - 0.4 - 0.6 - 0.8
and they will be shown on the display for about 3 seconds after the
P3 trimmer is turned,
TYPE OF HEAT REQUEST
If an ambient thermostat is connected to the boiler (JUMPER 6
not on) (fig. 41)
The heat request is made by the closure of the room thermostat con-
tact, while the opening of the contact produces a switch-off. The de-
livery temperature is automatically calculated by the boiler, although
the user may interact with the boiler. Using the interface to modify the
HEATING, you will not have the HEATING SET-POINT value availa-
ble, but a value that you can set as preferred between 15 and 25°C.
The modification of this value will not directly modify the delivery tem-
perature, but will automatically affect the calculation that determines
the value of that temperature, altering the reference temperature in
the system (0 = 20°C).
If an hourly timer is connected to the boiler (JUMPER JP6 not
on) (fig. 42)
With the contact closed, the heat request is made by the delivery
probe, on the basis of the external temperature, to obtain a nominal
ambient temperature on DAY level (20°C). The opening of the con-
tact does not produce a switch-off, but a reduction (parallel transla-
tion) of the climatic curve on NIGHT level (16°C).
This will activate the night time function.
The delivery temperature is automatically calculated by the boiler,
although the user may interact with the boiler.
Using the interface to modify the HEATING, you will not have the
HEATING SET-POINT value available, but a value that you can set
as preferred between 15 and 25°C.
The modification of this value will not directly modify the delivery tem-
perature, but will automatically affect the calculation that determines
the value of that temperature, altering the reference temperature in
the system (0 = 20°C for DAY level, and 16°C for NIGHT level).
If the boiler is connected to a remote control (like BeSmart), when
the heat request is made by the REC remote control, the ther-
moregulation is managed by said remote control (refer to the spe-
cifi c instruction manual for this product).
4.7
Adjustments
All boiler regulations and calibrations should be carried out di-
rectly and only on the instrument panel in the boiler.
To do this, remove the connection of the remote control panel
by separating the front of the fixing base. After this operation the
knobs of the boiler are active.
The boiler has already been adjusted by the manufacturer. However,
if adjustments must be repeated, for example after special mainte-
nance, replacement of the gas valve or conversion from methane gas
to LPG or propane air, observe the following procedures.
The adjustment of the maximum and minimum output, the maximum
heating and slow ignition, must be made strictly in the sequence indi-
cated, and by qualified personnel only:
1.
disconnect the boiler power supply
2.
turn the heating water temperature selector to its maximum, se-
lector in correspondence to + (fig. 43)
3.
lift and then turn the instrument panel upside down
4.
remove the electrical parts inspection cover, undoing the 2 fixing
screws
5.
insert jumpers JP1 and JP3 (fig. 44)
6.
power the boiler.
"ADJ" will appear on the display for about 4 sec
Modify the following parameters:
7.
absolute/domestic maximum
8.
minimum
9.
maximum heating
10. slow ignition
as described below:
11. turn the heating water temperature selector to set the desired
value
12. press the CO button (fig. 45) and move on to calibration of the
next parameter.
Live electrical parts (230 Vac).
The following icons will appear on the display:
1.
during absolute/domestic maximum calibration
2.
during minimum calibration
3.
during heating maximum calibration
4.
during slow ignition calibration
End the procedure removing jumpers JP1 and JP3 to store the set
values.
the function can be terminated at any time without storing the set
values and maintaining the previously set ones:
removing jumpers JP1 and JP3 before all 4 parameters have been set
- turning the mode selector to
- disconnecting the mains voltage.
- 15 minutes after activation.
The calibration does not entail the ignition of the boiler.
By rotating the heating setpoint selector knob, the number of ro-
tations expressed in hundreds (e.g. 25 = 2.500 rpm) is automati-
cally displayed.
The calibration parameter display function is activated with the selector
on summer or winter and pressing the CO button on the card regard-
less of whether or not there is a heat request.
The function cannot be activated if a remote control is connected.
When this function is activated, the calibration parameters each appear
(in the order shown below) for 2 seconds. The relative icon is indicated
in line with each parameter, and the fan rotation value (expressed in
hundreds)
1.
Maximum
2.
Minimum
3.
Maximum heating
4.
Slow ignition
5.
Adjusted maximum heating
GAS VALVE CALIBRATION
- Electrically power the boiler.
- Open the gas tap.
- Set the mode selector to
- Remove the shell, turn the instrument panel upside down and re-
move the electrical parts inspection cover to access the "CO" button.
Press the "CO" button once.
Live electrical parts (230 Vac).
- Wait for the burner to ignite.
"ACO" appears on the display. The boiler operates at maximum
heating output.
The "combustion analysis" function remains active for a limited
time of 15 minutes; if a delivery temperature of 90°C is reached the
burner will extinguish. It will reignite when this temperature drops
below 78°C.
- insert the analyser probes in the prescribed positions on the air box
after removing the screws and the cover.
- Press the "combustion analysis" button a second time to reach the
number of revolutions that corresponds to the maximum domestic
hot water output (table 1).
- Check the CO
value: (table 4) if the value does not comply with the
2
indications in the table act on the gas valve max adjustment screw
(fig. 46).
MySMART C.S.I.
OFF/RESET.
OFF/RESET (display off).
13
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