Immergas AVIO 24 2 ERP, Инструкция и предупреждение

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3.2 WIRING DIAGRAM.
Key:
A5 - CAR
V2
interface card
B1 - Delivery probe
B2 - Domestic water probe
B4 - External probe (Optional)
CAR
V2
- Remote Friend Control
V2
(Optional)
Mini CRD - Mini Digital Remote Control
(Optional)
E1 - Ignition plugs
E2 - Igniter sensor
E4 - Safety thermostat
E6 - Fumes thermostat
F1 - Neutral fuse
F2 - Line fuse
M1 - Boiler circulating pump
M30 - 3-way valve
R5 - Domestic water temp. trimmer
R6 - Heating temp. trimmer
R10 - Main selector switch
S8 - Gas type selector
S20 - Environment thermostat
T2 - Switch-on transformer
X40 - Environment thermostat jumper
Y1 - Gas valve
Y2 - Gas valve modulator
1 - Primary
2 - Secondary
3 - 230 Vac 50Hz Power supply
4 - 230 Vac 50Hz max 2°aux. output
5 - Area card (Optional)
6 - Heating
7 - Domestic water
Colour code key:
BK - Black
BL - Blue
BR - Brown
G - Green
GY - Grey
G/Y - Yellow/Greene
R - Red
W - White
Remote controls: the boiler is designed to use
the Remote Friend Control
V2
(CAR
V2
), or as an
alternative to the Mini Digital Remote Control
(Mini CRD) which must be connected to clamps
42 and 43 of connector X9 for the CAR
V2
(respec-
ting polarity) and clamps 40 and41 of connector
X9 for the Mini CRD on the circuit board and in
both cases eliminating X40.
Environment thermostat (alternative to the Mini
CRD): the boiler is designed to use the Room
Thermostat (S20). Connect it to clamps 40 –41
eliminating jumper X40.
Connector X12 is used for automatic inspection
for connection to the personal computer.
3.3 TROUBLESHOOTING.
N.B.:
maintenance operations must be carried
out by an authorised company (e.g. Authorised
After-Sales Technical Assistance Service).
- Smell of gas. Caused by leakage from gas circuit
pipelines. Check sealing efficiency of gas intake
circuit.
- Irregular combustion (red or yellow flame).
This may be caused by: a dirty burner, or
blocked boiler lamellar pack.
- Frequent activation of the temperature
overload thermostat. This may be caused by
lack of water in the boiler, insufficient water
circulation in the circuit, a blocked circulator
or an anomaly of the boiler adjustment card.
Check via the pressure gauge that values are
within admissible limits. Check that radiator
valves are not all closed
.
- The boiler produces condensate. This can be
caused by obstructions of the chimney or flues
with height or section not proportioned to the
boiler. It can also be determined by functioning
at boiler temperatures that are excessively low.
In this case, make the boiler run at higher
temperatures.
- Frequent interventions of the chimney safety
thermostat. This can be caused by obstructions
in the fumes circuit. Check the flue. The flue
may be obstructed or by height or section
not suitable for the boiler. Ventilation may be
insufficient (see room ventilation point).
- Presence of air in the system. Check opening
of the special air bleeding cap (Fig. 1-8). Make
sure the system pressure and expansion tank
pre-charge values are within the set limits; the
pre-charge value for the expansion tank must
be 1.0 bar, and system pressure between 1 and
1.2 bar.
- Ignition block and Flue block (Par. 2.6).
- Domestic water probe broken. The boiler does
not have to be emptied in order to replace the
domestic water probe as the probe is not in
direct contact with the domestic hot water
present in the boiler.