Riello Residence Condens 25 KIS n Manuel De L'installateur Et De L'utilisateur page 13

4.7 Light signals and faults
Green LED
Off = boiler in stand-by, no flame.
On = burner on, the boiler operates normally.
Red led
In the event of stoppage: display of the fault code only blinking on
the digit.
in the event of lockout: red LED on and fault code blinking on digit.
The error code is not present in status
ble position the mode selector to
It is displayed however during the combustion analysis and the an-
ti-freeze phase operations.
To restore the operation, position the function selector to
set) and then return it back to the desired position: summer or winter
mode.
If the reset does not activate the boiler operation, contact the Techni-
cal Assistance Service.
Code Description
Number of ignition attempts exceeded
AL10
(flame absent/condensation present)
AL20 Limit thermostat fault
Low temperature thermostat/
AL21
condensation pump safety fault
AL26 Return overtemperature
AL28 Return line/outlet probe differential fault
AL29 Flue gases probe overtemperature
AL34 Tacko fan fault
AL40 System water pressure low (after 10 minutes)
AL41 System water pressure low
AL52 General electronic fault
Fault due to absence of boiler mode
AL55
configuration (corresponding jumper absent)
AL60 DHW probe fault
AL71 Outlet probe fault (open/short circuit)
AL73 Return line probe fault (open/short circuit)
Outlet overtemperature/ return /
AL79
outlet probe differential fault
Primary heat exchanger cleaning
AL91
(call customer service)
For AL41 faults
Check the pressure on the boiler water gauge; if it is less than 0.5 bar
proceed as follows:
- position the mode selector to
- fill slowly by opening the filler tap (fig. 32) until the hand of the hy-
drometer is between 1 and 1.5 bar (fig. 33)
- reposition the mode selector on the required position (summer or
winter).
If the drop in pressure is frequent, contact the Technical Assistance
Service.
For fault AL60
The boiler is working normally, but does not provide any stability of
the domestic hot water temperature that, in any event, is supplied at
a temperature of around 50°C.
The intervention of the Technical Assistance Service is required.
For fault AL91
The boiler is equipped with an auto-diagnostic system which, based
on the total number of hours in certain operating conditions, can sig-
nal the need to clean the primary exchanger (alarm code 91). Once
the cleaning operation has been completed, reset to zero the total
hour meter with special kit supplied as an accessory following proce-
dure indicated below (fig. 34):
- disconnect the electrical power supply, unscrew the 4 Allen screws
(A) and remove the control panel (B),
- restore the electrical power supply to the boiler by holding down
the combustion analysis button "CO" (C) for at least 4 seconds.
(off/reset), to make it visi-
o (fig. 31).
(off/re-
Lockout type
lockout
lockout
lockout
lockout
lockout
lockout
lockout
lockout
stop
lockout
lockout
see dedicated
section
STOP
STOP
lockout
Signal
To verify a successful reset of the counter, switch the power supply to
the boiler off and on again; the value of the counter will be displayed
after the lighting of all segments of the digits.
Note: the meter resetting procedure should be carried out after each
in-depth cleaning of the primary exchanger or if this latter is replaced.
To check the status of the totalled hours, multiply the value read by
100 (e.g. value read 18 = total hours 1.800; value read 1= total hours
100).
4.8 Boiler configuration (fig. 35-36)
The electronic board has a number of jumpers (JP4) that allow to
configure the boiler; access is possible by disconnecting the cover A
of the control panel by means of the clips B after having positioned
the main switch to off.
JUMPER IN POSITION 1:
pre-selection of the most appropriate heating temperature adjust-
ment field based on the type of system.
Jumper not inserted - case A
Standard system 40-80 °C
Jumper inserted - case B
Floor installation 20-45°C.
During manufacture, the boiler is configured for standard systems.
JUMPER IN POSITION 2: (not used)
JUMPER IN POSITION 3: (not used)
JUMPER IN POSITION 4: (not used)
JUMPER IN POSITION 5: COMBI
JUMPER IN POSITION 6: (not used)
4.9 Setting the thermoregulation
Thermoregulation only works with external sensor connected, so
once installed, connect the device to the appropriate connections
provided on the terminal board of the boiler (see chapter "Electrical
wiring"). This will enable the THERMOREGULATION function.
Choosing the compensation curve (fig. 37-38-39)
The compensation curve for heating maintains a theoretical
temperature of 20°C indoors, when the external temperature is
between +20°C and -20°C. The choice of the curve depends on
the minimum external temperature envisaged (and therefore on the
geographical location), and on the delivery temperature envisaged
(and therefore on the type of system). It is carefully calculated by the
installer on the basis of the following formula:
T.outlet envisaged - Tshift
TMR =
20 - min. design external T.
Tshift = 30°C standard system
25°C floor installations.
If the calculation produces an intermediate value between two
curves, you are advised to choose the compensation curve nearest
the value obtained.
Example: if the value obtained from the calculation is 1.3, this is be-
tween curve 1 and curve 1.5. Choose the nearest curve, i.e. 1.5.
The selection of the thermoregulation curve must be carried out by
acting on the trimmer TMR (5a) accessible under the control panel.
The settable TMR values are as follows:
- Standard system: 1.0-1.5-2.0-2.5-3.0
- Floor installation: 0.2-0.4-0.6-0.8.
HEAT REQUEST TYPE (modifiable parameter with remote
control only) (fig. 37-38-39)
If an ambient thermostat is connected to the boiler (parameter 51 =
0 - factory default setting)
The heat request is made by the closure of the room thermostat con-
tact, while the opening of the contact produces a switch-off. The de-
livery temperature is automatically calculated by the boiler, although
the user may interact with the boiler. Using the interface to modify
the HEATING (2a), you will not have the HEATING SET-POINT
value available, but a value that you can set as preferred between
+5 and -5°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).
ENGLISH
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