Italtherm CITY MAX 26 K, Инструкция по эксплуатации

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Green Heating Technology
41
Signal Probable causes Suggested solutions
16
Fan failure.
The burner fan is
stopped or rotates
at an incorrect
speed.
User: Restore the boiler function by turning the knob on the
unlock position , wait the red light to turn off, then bring the
knob in the previous position.
Check the burner fan functionality. Replace it if necessary.
22
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 33 and "Electronic settings" on page 35) to update the data in the
main board memory.
Replace the main board (consequently, redo the "Max heating pow-
er adjustment" on page 33 and "Electronic settings" on page 35).
24
Floor heating sys-
tem safety thermo -
stat triggering:
system flow tem-
perature too high;
floor heating sys-
tem defective,
faulty or malfunc -
tioning.
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.
Turn the knob on the unlock position until the red lamp
turns off (or eventually for a longer period to cool the system and
restore the thermostat), then bring the knob in the previous posi-
tion. If the lockout persists or reappears, call the Service Centre
Remark: when this alarm is active, the hot water production is locked too.
If any floor heating system was installed, check the integrity of
the jumper connecting terminals 57 and 58 of M12 see "Electrical
diagram" on page 49).
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 15).
31
Remote control*
not working
Data exchanged between
the boiler and the Re-
mote Control don't com-
ply with the expected
protocol.
* This applies to Remote
Control optional kit only,
and not to third parties
chrono-thermostats
User:
see also paragraph "Remote Control Kit" on page 52.
Under these conditions, the boiler functions only in Sanitary. If the heating was neces -
sary, and no spare Remote Control nor standard room thermostat were immediately
available, ask the technician to
temporarily make heating work manually from the
boiler’s control panel (excluding the operation from the remote control).
Note for the TECHNICIAN: to activate the heating in manual mode, jumper the boiler’s room thermostat input
( see "Electrical diagram" on page 49); make the boiler operate in Winter mode by regulating the heating tem -
perature manually from the boiler’s control panel. Show the User how to adjust the heating from the boiler’s
in-built control panel, by rotating the Summer/Winter knob within the scale .
33-34
Cabling configura-
tion error.
Refer to the electric diagram (page 49) and check the integrity of the
wirings, especially the eventual short cable jumpers between two
contacts of the same connector (on the cabling connections to the
electronic board).