
Installation and servicing instructions strictly reserved for qualifi
ed gas installers
45
Legend
1
Heat exchanger retaining screw
2
Heat exchanger retaining plate
3
Heat exchanger retaining screw
4
Burner
5
Burner unit retaining nuts
6
Ignition and control electrode
connector
7
Burner unit
8
Fan retaining screw
9
Gas valve retaining screw
10 Gas valve connector
11 Burner retaining screw
12 Insulator
13 Gasket
14 Heat exchanger retaining screw
15 Gas valve
16 Gas pipe
17 Fan
18 Fan connector
19 Heating pipes retaining clips
20 Condensate trap pipe
21 Heat exchanger retaining plate
22 Insulator
23 Heat exchanger
24 Thermal fuse connector
15.2.1 Burner unit
Remove the 3 fan retaining screws (8).
Remove the burner unit (7) (see
chapter on “Maintenance”).
Fit the new burner unit, the new gasket
(13) and the new insulator (12) (see
chapter on “Maintenance”).
15.2.2 Burner
Remove the burner unit (7) (see
chapter on “Maintenance”).
Remove the 3 screws (11) on the
burner and remove it.
Fit the new burner and new gasket.
Replace the burner unit (7) (see
chapter on “Maintenance”).
15.2.3 Heat exchanger
Remove the silencer (see chapter on
“Maintenance»).
Remove the burner unit (7) (see
chapter on “Maintenance”).
Remove the heat fuse connector (24).
Remove the 2 heating pipe retaining
clips (19).
Release the heating pipe from the heat
exchanger.
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Release the condensate trap pipe (20)
from the heat exchanger.
Unscrew the 4 retaining screws (3) and
(14) and remove the 2 retaining plates
(2) and (21) from the heat exchanger.
Pull the heat exchanger towards you to
extract it from its 2 side rails.
Fit the new heat exchanger by
repeating the operations in reverse.
15.2.4 Gas valve
Remove the pipe (16) from the gas
valve (15).
Remove the gas valve connector (10).
Remove the two gas valve retaining
screws (9).
Remove the gas valve (15).
Fit the new gas valve and the new
gasket by repeating the operations in
reverse.
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Содержание Thema CONDENS F 18 E SB
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Страница 50: ...Installation and servicing instructions strictly reserved for qualified gas installers 49 ...
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