Indicator Leds And Faults; Boiler Configuration; For Al41 Faults; Red Indicator Led - Riello Residence Condens 25 KIS e Installer And User Manual

ENGLISH
the function starts if the temperature measured by the domestic
hot water probe (water tank probe for IS models) falls below 4°C.
In this phase, a heat demand is generated and the burner ignites
at minimum power. This is maintained until the temperature of
the delivery water reaches 55°C for KIS � 35°C for IS.
During the anti�freeze phase, AF flashes on the display (fig.
12).
- circulator anti-block: if the boiler remains inactive, the circula-
tor performs a 30�second operating cycle every 24 hours.
If the boiler is planned not to be used for a long period, proceed
as follows:
� move the function selector to OFF�RESET
� turn the main system switch to "off"
� close the fuel and the heating and hot water taps (for KIS).
In this case, the anti�freeze and anti�block systems are disabled.
Drain the heating and hot water system (for KIS) if there is danger
of freezing.

12.3 - Indicator LEDs and faults

Green indicator LED
Off = boiler on stand�by, no flame
On = burner on, the boiler works regularly.

Red indicator LED

Stop: �ust the fault code flashes on the digital display.
Block: the red indicator LED lights up and the fault code flashes
on the digital display.
The fault code is not displayed in the OFF/RESET
display it, move the function selector to
stion analysis and the anti�freeze phase, instead, it is displayed.
To reset the boiler, turn the function selector to
and then move it to be required position: summer or winter.
If the boiler still doesn't work, call in the local Technical Service
Centre.

For AL41 faults

If the pressure on the water gauge located on the control panel is
less than 0.5 bar, proceed as follows:
- Turn the function selector to
� For KIS: fill slowly by opening the filling tap (fig. 13) until the
pointer of the water gauge lies between 1 and 1.5 bar (fig. 13).
� For IS: fill the system until the pressure indicated on the water
gauge lies between 1 and 1.5 bar (fig. 13).
- Move the function selector to the desired position.
In case of frequent pressure drops, call in the Technical Service
Centre.
Code Description of alarm
AL10 Ignition attempts finished (no flame/condensate present)
AL20 Limit thermostat fault
AL21 Low temperature thermostat/condensate pump safety device fault
AL26 �eturn over temperature
AL28 Return/delivery probe differential fault
AL29 Fumes probe overtemperature
AL34 Fan tacho fault
AL40 System water pressure low (after 10 minutes)
AL41 System water pressure low
AL52 Generic electronic fault
AL55 �o boiler mode configuration fault (corresponding �umper absent)
AL60 Domestic hot water probe fault (KIS)
AL60 Water tank probe fault (IS)
AL71 Delivery probe fault (open/short circuit)
AL73 �eturn probe fault (open/short circuit)
AL79 Delivery over temperature / return�delivery probe differential fault
AL91 Clean primary exchanger (call the technical assistance service)
14
mode. To
or . During combu-
(OFF/RESET)
(fig. 10).
AL60 fault
KIS: The boiler works regularly but does not ensure the stability of
the hot water temperature which, however, is delivered at a tem-
perature of approximately 50°C. Contact the Technical Assistance
Centre.
IS: Only with external water tank with sensor. The fault code is
shown when the boiler is in stand�by.
Fault code 91
The boiler has a self�diagnosis system which, on the basis of the
hours totalised in particular operating conditions, signals the need
for maintenance or cleaning of the primary exchanger (alarm code
91). After cleaning using the kit supplied as an accessory, reset the
hour counter as follows:
� disconnect the mains power supply
� unscrew screws A and remove instrument panel � (fig. 4)
� switch on the boiler by pressing and holding down button C (fig.
4) for at least 4 seconds
- to check the counter has been reset, switch the boiler off and
back on again� after all the digit segments have lit up, the counter
value will be displayed.
To check the number of hours, multiply the value by 100 (e.g.: va-
lue displayed 18 = 1800 hours totalised – value displayed 1= 100
hours totalised).
�.�.: perform the counter reset procedure every time the primary
exchanger is thoroughly cleaned or replaced.

12.4 - Boiler configuration

The electronic board contains a series of �umpers (JP4) that can
be used to configure the boiler; access these by loosening the fa-
steners G (fig. 26) and removing the control panel cover F (fig. 26)
after turning off the main switch.
JUMPER IN POSITION 1:
pre�selection of the most suitable heating temperature ad�ustment
field according to the type of system.
Jumper not inserted - case A
Standard system 40�80°C
Jumper inserted - case B
Floor system 20�45°C.
The boiler has been factory�configured for standard systems.
For KIS models (fig. 34a):
JUMPER I� POSITIO� 2: (unused)
JUMPER I� POSITIO� 3: (unused)
JUMPER I� POSITIO� 4: (unused)
JUMPER I� POSITIO� 5: COM�I�ED
JUMPER I� POSITIO� 6: (unused)
Status
�lock
�lock
�lock
�lock
�lock
�lock
�lock
�lock
Stop
�lock
�lock
See dedicated section
�lock
Stop
Stop
�lock
Signal