Lamborghini Caloreclima KYRA D 30 UNIT Instrucciones Uso, Instalación Y Mantenimiento página 54

4.3.3 Cleaning the boiler
1. Disconnect the power supply to the boiler.
2. Remove the upper panel "A" and open the burner door.
3. Unscrew the nuts "B".
4. Remove the cover from the smoke chamber "E".
5. Remove the turbulators "C".
6. Wipe the outlet of the fumes with a brush "D" and an aspirator.
7. Remove all residues from the combustion chamber.
8. Reassemble all removed components.
C
E
4.3.4 Accessing the electrode and nozzle
• Disconnect the transformer electrode cables and remove the photoresistance 1,
and the union 2 connecting the oil pipe to line 3 of the nozzle. Loosen the screws
4 and pull out the nozzle-baffle-electrode flange assembly.
Undo the screw 5 to remove the baffle and screw 6 to remove the electrodes. Proper
cleaning of the nozzle is obtained by removing the filter and cleaning the slots and
spraying hole with petrol, rinsing it with fuel oil. When reassembling everything, pay
attention to the correct positioning of the electrodes-baffle.
EN
54
A
B
D
fig.36
fig.37
fig.38
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 (9 - fig.1) indicating the
fault code.
There are faults the cause permanent shut downs (marked with the letter "A"):
to restore operation, just press the RESET button (3 -fig.1) for 1 second or use
the RESET on the remote timer control (optional) if installed; if the boiler does not
restart, it is necessary to eliminate the fault indicated in the operation LEDs.
Other faults cause temporary shut downs (marked with the letter "F") which are
automatically reset as soon as the value returns within the boiler's normal working
range.
Circulating pump
Faults must only be repaired by qualified specialist technicians, work on electrical
connections must only be carried out by qualified specialist electricians.
Faults Causes
Pump not Faulty electrical fuse
working with
No power to pump
power switched
on
Noisy pump Cavitation due to
insufficient delivery
pressure
The building Radiant panel thermal
does not get power too low
warm
Fault signals
• The fault LED signals a fault.
• The pump stops (depending on the fault), and makes cyclical attempts to restart
LED
Faults
Lights up red Fault
Contact/winding
Flashes red Under/over
voltage
Excessive module
temperature
Short circuit
Flashing red/green Turbine operation
Dry running
Overload
ATTENTION
From software version 23, an additional feature has been introduced to facilitate
burner calibration, i.e. flame flashing on the display to indicate that the burner is on
but with indication of non-optimal flame.
For the various software versions, the meanings of the symbols shown on the
display can be found in the table 3.
Table. 11 - Flame symbol indications
Indication on the display and meaning
Software
Flame Off
Version
≤ 22 Burner off
≥ 23 Burner off
KYRA D
Cures
Check fuses
Eliminate the power supply
interruption
Increase the system pressure
within the permissible range
Check the head setting and set a
lower head if necessary
Increase the delivery value
Set the adjustment mode to Δp-c
instead of Δp-v
Causes Cures
Blocked rotor Activate manual
restart or contact
Faulty winding
Customer Service
Supply side Check the mains
voltage too low/ voltage and
high conditions of use.
Request Customer
Too hot inside
Service
module
Motor current too
high
The hydraulic Check the mains
system of the voltage, flow rate/
pumps is fed, but water pressure
the pump has no and also the
mains voltage ambient conditions
Air in pump
The motor turns
with difficulty.
Pump not running
according to
specifications
(e.g. high module
temperature). The
speed is lower
than in normal
operation.
Flame On Steady Flame Flashing
Burner on -
Burner on and Burner on
indication of stable indication of NOT
flame optimal flame
A73023800
with