Immergas VICTRIX X12-242I, Instruction And Warning Book

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INS
TALLER
US
ER
MAINTEN
AN
CE TECHNI
CI
AN
3.2 WIRING DIAGRAM.
R6 - Central heating temperature trimmer
R8 - Storage tank resistance
S2 - Selector switch functioning
S3 - Reset block key
S5 - System pressure switch
S20 - Room thermostat (optional)
S31 - On/Stand-by/Off Button
S33 - Info button
T2 - Boiler card transformer
X40 - Room thermostat jumper
Y1 - Gas valve
1 - N.B.: The user interface is on the welding side
of the boiler board
2 - 230Vac 50Hz power supply
3 - Signal state
4 - Storage tank unit (optional)
Key:
B1 - Flow probe
B2 - DHW probe (optional)
B4 - External probe (optional)
B5 - Return probe
B10 - Flue probe
CAR
V2
- Comando Amico Remoto
V2
remote control
(optional)
E1 - Ignition electrodes
E2 - Detection electrode
E4 - Safety thermostat
E13 - Heat exchanger safety thermofuse
G2 - Igniter
M1 - Boiler pump
M20 - Fan
M30 - 3-way valve (motorised) (optional)
R5 - Domestic hot water temperature
trimmer
Comando Amico Remoto remote control:
the boiler is prepared for the application of
the Comando Amico Remoto remote control
(CAR
V2
, which must be connected to clamps 41
and 44 of the terminal board (positioned under
the sealed chamber) respecting the polarity and
eliminating jumper X40.
Room thermostat: the boiler is prepared for the
application of the room thermostat (S20), which
must be connected to clamps 40 and 41 of the
terminal board (positioned under the sealed
chamber) eliminating jumper X40.
Storage tank unit: the boiler is prepared for
connection to a storage tank unit, which must be
connected to clamps 36 and 37 of the terminal
board (positioned under the sealed chamber)
eliminating resistance R8.
The connector X5 is used for the connection to
the relay P.C.B.
The connector X6 is for connection to a personal
computer.
The connector X8 is used for software updating
operations.
3.3 TROUBLESHOOTING
N.B.:
maintenance interventions must be carried
out by a qualified technician (e.g. Immergas
After-Sales Technical Assistance Service).
- Smell of gas. Caused by leakage from gas circuit
pipelines. Check sealing efficiency of gas intake
circuit.
- Repeated ignition blocks. It can be caused by
no gas, check the presence of pressure in the
network and that the gas adduction valve is
open. Incorrect adjustment of the gas valve,
check the correct calibration of the gas valve.
- Irregular combustion or noisiness. This may be
caused by: a dirty burner, incorrect combustion
parameters, intake-exhaust terminal not
correctly installed. Clean the above components
and ensure correct installation of the terminal,
check correct setting of the gas valve (Off-Set
setting) and correct percentage of CO
2
in flue
gases.
- Frequent activation of the temperature
overload thermostat. It can depend on the lack
of water in the boiler, little water circulation
in the system or blocked pump. Check on the
manometer that the system pressure is within
established limits. Check that the radiator
valves are not closed and also the functionality
of the pump.
- Siphon blocked. This may be caused by dirt or
combustion products deposited inside. Check,
by means of the condensate drain cap, that
there are no residues of material blocking the
flow of condensate.
- Heat exchanger blocked. This may be caused by
the trap being blocked. Check, by means of the
condensate drain cap, that there are no residues
of material blocking the flow of condensate.
- Noise due to air in the system. Check opening
of the hood of the special air vent valve (Fig.
1-32). Make sure the system pressure and
expansion vessel pre-charge values are within
the set limits; The factory-set pressure values of
5 - Low temperature safety thermostat
connection jumper
6 - Storage tank mode configuration
jumper
7 - Blue
8 - Brown
9 - Yellow/Green
10 - Grey
11 - Black
12 - White
13 - Green
14 - Red
15 - Orange
16 - Purple
17 - Domestic hot water
18 - Central heating
19 - Return probe function
configuration jumper