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COMMISSIONING AND MAINTENANCE
3.12 Cleaning and removing internal components
Before any cleaning operation, disconnect the electric power
supply by switching the main system switch to "off".
OUTSIDE
Clean the casing, the control panel, the painted parts and plastic
parts with cloths moistened with soap and water. In the case of
stubborn stains, moisten the cloth with a 50% water and alco-
hol mixture or specific products.
0
Do not use fuels, sponges impregnated with abrasive solu-
tions or powder detergents.
INSIDE
Before starting internal cleaning operations:
− close the gas shut-off valves
− close the system taps.
Access to the control panel and the internal modular system
parts
− open the module door (or the left door if two doors are
present).
− Unscrew the two screws (1) placed on the panel.
− Fold the panel forward (2) making it rest on the two rub-
ber pads. At this point you have full access to the terminal
blocks (3).
1
2
3
3
Once the maintenance operations are complete, refit the com-
ponents working in the opposite direction of what was de-
scribed.
86
Disassamble of the fan and burner
− Open the module's doors (or the door in case there is
only one door).
− Disconnect the wiring (4) of the fan (5).
− Unscrew the turntable (6) and disconnect the gas pipe.
− Remove the air conveyor (7).
− Unscrew the four nuts (8) that fix the fan (5) to the flange.
− Remove the fan (5).
7
6
5
8
8
4
8
8
− Remove the seal (9).
− Unscrew the four screws (10) fixing the flange (11) to the
flange below (12).
− Remove the seal (13) and extract the burner (14).
5
9
10
11
12
13
14
Once the maintenance operations are complete, refit the com-
ponents working in the opposite direction of what was de-
scribed.
9
Check that the gas connection is leak proof.
COMMISSIONING AND MAINTENANCE
Disassembly of the flange for cleaning the exchanger
− Open the module's doors (or the door in case there is
only one door).
− Disconnect the wiring (1) of the fan (2).
− Unscrew the turntable (3) and disconnect the gas pipe.
− Remove the air conveyor (4).
− Unscrew the six screws (5) that secure the burner unit (6)
to the heat exchanger with a socket wrench.
− Remove the fan and the entire burner body (6).
− Remove the electrode plate (7), check the electrode's
condition and replace it if necessary.
4
3
2
7
1
5
5
6
− Remove the gasket (8), the insulating mat (10) and the
bracket (9).
10
9
8
Once the maintenance operations are complete, refit the com-
ponents working in the opposite direction of what was de-
scribed.
9
Check that the gas connection is leak proof.
87
5
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