4 Planning and installation – Installing the heating system
38
5.
Install the ignition pipe (11) with the seal (9) placed in between
with the M5 hexagon socket screws (SW4) onto the connection
provided on the boiler.
6.
Mount the differential pressure switch (3) with the two self-
tapping screws on the retaining plate (6).
7.
Mount the retaining plate (6) with the two drilling screws (SW5,5)
on the assembly plate.
8.
Screw the hose nozzle (SW14) (8) into the connection for the
differential pressure switch on the boiler.
9.
Slide the empty pipe (5) in the area of the cleaning system lever
over the silicone hose (7).
10.
Insert the silicone hose (7) on the hose nozzle (8) and on the top
connection on the differential pressure switch (4).
11.
Insert the flat plug receptacle of the brown wire from the cable for
the differential pressure switch into socket 1 (1).
12.
Insert the flat plug receptacle of the white wire from the cable for
the differential pressure switch into socket 3 (2).
Figure 4/13 - Installing the differential pressure switch and ignition fan
6
1
2
3
7
8
11
9
4
5
10
Important!
Make sure that the silicone hose is fitted so that it does not come
into contact with the ignition pipe.
Summary of Contents for F20
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