Italtherm 35 K, Руководство по установке

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Green Heating Technology
43
Signal Probable causes Suggested solutions
E15
Failure to the heat -
ing system return
temperature probe.
Check the cabling of the system return temperature probe.
Replacement of the system return temperature probe.
E16
Fan failure.
The burner fan is
stopped or rotates
at an incorrect
speed�
User:
Try a boiler reset by using the button. If the lockout
persists or reappears, call the Service Centre.
Check the burner fan functionality.
Replace it if necessary�
E17
Pushbutton failure.
The electronic has
detected the actua -
tion of a pushbut -
ton for more than
30 seconds.
User: check for jammed pushbuttons that remain pressed. Discon -
nect the electrical supply to the boiler by operating the suitable
external bipolar switch, then connect it again after a few minutes.
Remove the main PCB and clean, using suitable products, the rub
-
ber keyboard and pushbuttons' contact pads both on buttons and
on the PCB�
Replace damaged parts if necessary�
E22
Memory-stored
data not coherent�
User: Disconnect the electrical supply to the boiler by operating the
suitable external bipolar switch, then connect it again after a few
minutes. If the lockout persists or reappears, call the Service Centre.
Redo all the boiler settings ("Max heating power adjustment" on
page 37 and "PCB parameters settings (technician menu)" on
page 31) to update the data in the main board memory.
Replace the main board, by carefully following the instructions in
-
cluded in the spare part kit. See also "Main board replacement" on
page 38.
E24
Floor heating sys -
tem safety thermo-
stat triggering:
f system flow
temperature too
high;
f
floor heating
system defec-
tive, faulty or
malfunctioning.
The floor heating system and the floor cladding can be damaged by
temperature shocks, so a good quality system includes one or more
safety thermostats that, if necessary, trigger and lock the boiler.
Try a boiler reset by using the button (eventually wait for a
period that allows to cool the system and restore the thermostat). If
the lockout persists or reappears, call the Service Centre
Remark:
This alarm is in relationship with parameters 22 and 46 (paragraph "Main
boiler parameters (PC)" on page 32. When this alarm is active, the hot water
production is locked too.
If any floor heating system was installed , check the correct set -
ting of parameter 22 (see page 34).
If the floor heating system is installed , check the system flow tem -
peratures on the boiler and on the low temperature system kits
(if installed). Replace the faulty or out-of-tolerance thermostats.
Check the correct positioning of the thermostats on the system (see
"Floor heating system" on page 14). Consider if the delay on the
termostat's triggering is too low and eventually, carefully, adjust it
by increasing the value of parameter 22.