Lamborghini Caloreclima TAURA D 24 MCA Instructions For Use, Installation And Maintenance - page 25
TAURA D MCA
25
EN
cod. 3541A212 - 04/2012 (Rev. 00)
4.3 Maintenance
Periodical check
To ensure correct operation of the unit over time, have qualified personnel carry out a
yearly check, providing for the following:
•
The control and safety devices (gas valve, flow meter, thermostats, etc.) must func-
tion correctly.
•
The fume exhaust circuit must be perfectly efficient.
(Sealed chamber boiler: fan, pressure switch, etc. -The sealed chamber must be
tight: seals, cable glands, etc.)
(Open chamber boiler: anti-backflow device, fume thermostat, etc.)
•
The air-fume end piece and ducts must be free of obstructions and leaks
•
The burner and exchanger must be clean and free of deposits. For possible cleaning
do not use chemical products or wire brushes.
•
The electrode must be properly positioned and free of scale.
fig. 12 - Electrode positioning
•
The gas and water systems must be airtight.
•
The water pressure in the cold water system must be about 1 bar; otherwise, bring
it to that value.
•
The circulating pump must not be blocked.
•
The expansion tank must be filled.
•
The gas flow and pressure must correspond to that given in the respective tables.
4.4 Troubleshooting
Diagnostics
The boiler is equipped with an advanced self-diagnosis system. In case of a boiler fault,
the display will flash together with the fault symbol (detail 11 - fig. 1) indicating the fault
code.
There are faults that cause permanent shutdown (marked with the letter "A"): to restore
operation, press the RESET button (detail 6 - fig. 1) for 1 second or RESET on the op-
tional remote timer control if installed; if the boiler fails to start, it is necessary to eliminate
the fault.
Faults marked with the letter "F" cause temporary shutdowns that are automatically reset
as soon as the value returns within the boiler's normal working range.
List of faults
Table. 2
5. TECHNICAL DATA AND CHARACTERISTICS
Table. 3 - Legenda figure cap. 5
Fault
code
Fault
Possible cause
Cure
A01
No burner ignition
No gas
Check the regular gas flow to the
boiler and that the air has been elimi-
nated from the pipes
Ignition/detection electrode fault
Check the wiring of the electrode and
that it is correctly positioned and free
of any deposits
Faulty gas valve
Check the gas valve and replace it if
necessary
Gas valve wiring disconnected
Check the wiring
Ignition power too low
Adjust the ignition power
A02
Flame present signal with
burner off
Electrode fault
Check the ionisation electrode wiring
Card fault
Check the card
A03
Overtemperature protec-
tion activation
Heating sensor damaged
Check the correct positioning and
operation of the heating sensor
No water circulation in the system Check the circulating pump
Air in the system
Vent the system
F04
Fume thermostat interven-
tion (after intervention of the
fume thermostat, boiler
operation is prevented for
20 minutes)
Fume thermostat contact open
Check the thermostat
Wiring disconnected
Check the wiring
Flue obstructed or not correctly
sized
Check the flue
F05
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify
it if necessary
A06
No flame after the ignition
phase
Low pressure in the gas system
Check the gas pressure
Burner minimum pressure setting Check the pressures
F07
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify
it if necessary
A09
Gas valve fault
Wiring disconnected
Check the wiring
Faulty gas valve
Check the gas valve and replace it if
necessary
F10
Delivery sensor 1 fault
Sensor damaged
Check the wiring or replace the sen-
sor
Wiring shorted
Wiring disconnected
3
± 0,5
=
=
F11
DHW sensor fault
Sensor damaged
Check the wiring or replace the sen-
sor
Wiring shorted
Wiring disconnected
F14
Delivery sensor 2 fault
Sensor damaged
Check the wiring or replace the sen-
sor
Wiring shorted
Wiring disconnected
A16
Gas valve fault
Wiring disconnected
Check the wiring
Faulty gas valve
Check the gas valve and replace it if
necessary
F20
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify
it if necessary
A21
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify
it if necessary
A23
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify
it if necessary
A24
Card parameter fault
Wrong card parameter setting
Check the card parameter and modify
it if necessary
F34
Supply voltage under 180V. Electric mains trouble
Check the electrical system
F35
Faulty mains frequency
Electric mains trouble
Check the electrical system
F37
Incorrect system water
pressure
Pressure too low
Fill the system
Water pressure switch damaged
or not connected
Check the sensor
F39
External probe fault
Probe damaged or wiring shorted
Check the wiring or replace the sen-
sor
Probe disconnected after activat-
ing the sliding temperature
Reconnect the external probe or disa-
ble the sliding temperature
A41
Sensor positioning
Delivery sensor or DHW sensor
detached from the pipe
Check the correct positioning and
operation of the sensors
F42
Heating sensor fault
Sensor damaged
Replace the sensor
F43
Exchanger protection acti-
vation.
No system H
2
O circulation
Check the circulating pump
Air in the system
Vent the system
F50
Gas valve fault
Modulating Operator wiring dis-
connected
Check the wiring
Faulty gas valve
Check the gas valve and replace it if
necessary
7 Gas inlet
44 Gas valve
8 Domestic hot water outlet
56 Expansion tank
9 Cold water inlet
72 Room thermostat (optional)
10 System delivery
74 System filling cock
11 System return
78 Anti-backflow device
14 Safety valve
81 Ignition and detection electrode
20 Burner assembly
114 Water pressure switch
21 Main nozzle
126 Fume thermostat
22 Burner
138 External probe
27 Copper exchanger for heating and hot
water
139 Room unit
32 Heating circulating pump
278 Double sensor (Safety + Heating)
36 Automatic air vent
290 Antiwind grille (optional)
38 Flowswitch
340 Bypass pipe
42 DHW temperature sensor
Fault
code
Fault
Possible cause
Cure