Lamborghini Caloreclima FL LOW NOX 24 MCS Instrucciones De Uso, Instalación Y Mantenimiento página 16

4. SERVICE AND MAINTENANCE
4.1 Adjustments
Gas conversion
The unit can operate on natural gas or LPG and is factory-set for use with one of these
two gases, as clearly shown on the packing and on the dataplate. Whenever a gas dif-
ferent from that for which the unit is arranged has to be used, the special conversion kit
will be required, proceeding as follows:
1. Replace the nozzles at the main burner, fitting the nozzles specified in the technical
data table in cap. 5, according to the type of gas used
2. Modify the parameter for the type of gas:
• put the boiler in standby mode
• press the DHW buttons (details 1 and 2 - fig. 1) for 10 seconds: the display
shows "b01" blinking.
• Press the DHW buttons (details 1 and 2 - fig. 1) to set parameter 00 (for natural
gas operation) or 01 (for LPG operation).
• press the DHW buttons (details 1 and 2 - fig. 1) for 10 seconds.
• the boiler will return to standby mode
3. Adjust the minimum and maximum pressures at the burner (ref. relevant para-
graph), setting the values given in the technical data table for the type of gas used
4. Apply the sticker contained in the conversion kit, near the dataplate as proof of the
conversion.
TEST mode activation
Press the heating buttons (details 3 and 4 - fig. 1) together for 5 seconds to activate the
TEST mode. The boiler lights at the maximum heating power set as described in the fol-
lowing section.
The heating and DHW symbols (fig. 17) flash on the display; the heating power will ap-
pear alongside.
fig. 17 - TEST mode (heating power = 100%)
Press the heating buttons (details 3 and 4 - fig. 1) to increase or decrease the power
(Min.=0%, Max.=100%).
By pressing the DHW "-" button (detail 1 - fig. 1), boiler output is immediately adjusted
to min. (0%). By pressing the DHW "+" button (detail 2 - fig. 1), boiler output is immedi-
ately adjusted to max. (100%).
If the TEST mode is activated and enough hot water is drawn to activate the DHW mode,
the boiler remains in TEST mode but the 3-way valve goes to DHW.
To deactivate the TEST mode, press the heating buttons (details 3 and 4 - fig. 1) together
for 5 seconds.
The TEST mode is automatically deactivated in any case after 15 minutes or on stopping
of hot water drawing (if enough hot water has been drawn to activate the DHW mode).
Pressure adjustment at the burner
Since this unit has flame modulation, there are two fixed pressure settings: minimum and
maximum, which must be those given in the technical data table according to the type of
gas.
• Connect a suitable pressure gauge to the pressure point "B" downstream of the
gas valve.
• Activate the TEST mode (see cap. 4.1).
• Press the Eco/Comfort button for 2 seconds to access the gas valve Calibration
mode.
• The card goes to the setting "q02"; displaying the actually saved value, by pressing
the DHW buttons .
• If the pressure gauge reading is different from the nominal maximum pressure, pro-
ceed by increases/decreases of 1 or 2 units of parameter "q02" by pressing the
DHW buttons : the value is stored after each modification; wait 10 seconds for the
pressure to stabilise.
• Press the heating button "-" (ref. 3 - fig. 1).
• The card goes to the setting "q01"; displaying the actually saved value, by pressing
the DHW buttons .
• If the pressure gauge reading is different from the nominal minimum pressure, pro-
ceed by increases/decreases of 1 or 2 units of parameter "q01" by pressing the
DHW buttons : the value is stored after each modification; wait 10 seconds for the
pressure to stabilise.
• Recheck both adjustments by pressing the heating buttons and adjust them if nec-
essary by repeating the above procedure.
• Press the Eco/Comfort button for 2 seconds to return to the TEST mode.
• Deactivate the TEST mode (see cap. 4.1).
• Disconnect the pressure gauge.
16
EN
eco
2
comfort
1 3
0 4
reset
cod. 3541D110 - Rev. 02 - 03/2018
FL LOW NOX 24 MCS
A - Upstream pressure point
B - Downstream pressure point
R
I - Gas valve electrical connection
R - Gas outlet
S - Gas inlet
B
I
A TYPE SGV100
Pi max 65 mbar
24 Vdc - class B+A
S
fig. 18 - Gas valve
Heating power adjustment
To adjust the heating power, switch the boiler to TEST mode (see sec. 4.1). Press the
heating buttons (detail 3 - fig. 1) to increase or decrease the power (min. = 00 - max. =
100). Press the reset button within 5 seconds and the max. power will remain that just
set. Exit TEST mode (see sec. 4.1).
Configuration Menu
Press the DHW buttons together for 10 seconds to access the configuration Menu. 7 pa-
rameters are available, indicated by the letter "b", which are not modifiable from Remote
Timer Control.
Press the Heating buttons to scroll the list of parameters in increasing or decreasing or-
der. Press the DHW buttons to view or modify the value of a parameter: the modification
will be automatically saved.
Contents Description Range
0=Natural Gas
b01 Gas type selection
1=LPG
1=Bithermal instantaneous
2=Monothermal instantaneous
b02 Boiler type selection
3=Heating only (3-way valve)
4=Heating only (circulating pump)
0=Sealed Chamber combustion
control
(without fume pressure switch)
1=Open Chamber (with fume
thermostat)
2=Sealed Chamber (with fume
pressure switch)
Combustion chamber type
3=Sealed Chamber combustion
b03
selection
control
(with fume thermostat on recuper-
ator)
4=LOW NOx Sealed Chamber
Combustion control
(without fume pressure switch)
5=LOW NOx Open Chamber
(with fume thermostat)
0=Flat
Primary Exchanger type selec-
tion 1=Omega
(b03=0)
2=--
No effect on adjustment
(b03=1)
No effect on adjustment
(b03=2)
b04
0=Flat
Primary Exchanger type selec-
tion 1=Omega
(b03=3)
2=--
No effect on adjustment
--
(b03=4)
No effect on adjustment
--
(b03=5)
~ 24Ω
fig. 19 - Gas valve connection
Default FL LOW NOX 24 MCS
0=Natural
0=Natural Gas
Gas
1=Bithermal
2=Monothermal instan-
instantane-
taneous
ous
0=Sealed 4=LOW NOx Sealed
Chamber Chamber Combustion
with control
combustion (without fume pressure
control switch)
0=Flat 0=Flat
-- 0
-- 0
0=Flat
0
0
~ 65Ω