ENGLISH
12
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
JP6 not on) (fig. 37)
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. 38)
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).
4.6
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. 39)
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. 40)
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. 41) and move on to calibration of the
next parameter.
b
Live electrical parts.
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 OFF/RESET
- disconnecting the mains voltage
- 15 minutes after activation.
b
The calibration does not entail the ignition of the boiler.
b
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
OFF/RESET (display off).
- Remove the shell, turn the instrument panel upside down and remove
the electrical parts inspection cover to access the “CO” button.
Press the “CO” button once.
b
Live electrical parts.
- 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
2
value: (
table 4
) if the value does not comply with
the indications in the table act on the gas valve max adjustment
screw (fig. 42).
- 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
2
value: (
table 5)
if the value does not comply with
the indications in the table act on the gas valve min adjustment
screw (fig. 42).
b
If the CO
2
values do not correspond to the values in the multigas
table, make further adjustments.
- To exit the “combustion analysis” function turn the command knob.
- Extract the gases analysis probe and refit the plug.
- Close the instrument panel and reassemble the shell.
The “combustion analysis” function automatically deactivates if the
card generates an alarm. In the event of a fault during the combustion
analysis phase, carry out the reset procedure, acting on the mode
selector as described in section 4.4.
