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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
between 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
contact, while the opening of the contact produces a switch-off.
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 temperature, 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 contact
does not produce a switch-off, but a reduction (parallel translation) 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
temperature, 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
thermoregulation is managed by said remote control (refer to the
specific instruction manual for this product).
4.7
Adjustments
All boiler regulations and calibrations should be carried out directly
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 maintenance,
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
indicated, 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 rotations expressed in hundreds (e.g. 25 = 2.500 rpm) is
automatically displayed.
The calibration parameter display function is activated with the selector
on summer or winter and pressing the CO button on the card regardless
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 num-
ber 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 indi-
2
cations in the table act on the gas valve max adjustment screw (fig. 46).
- Press the "combustion analysis" button a third time to reach the number
of revolutions that corresponds to the minimum output (table 2).
- Check the CO
value: (table 5) if the value does not comply with the in-
2
dications in the table act on the gas valve min adjustment screw (fig. 46).
MySMART
OFF/RESET.
OFF/RESET (display off).
13
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