18
Start-up
Disassembling firing head
• Isolate the system from power
source. Set the main switch to
„OFF“.
• Close all shut-off valves upstream
of the burner.
To disassemble the combustion head,
the cover on the housing must be re-
moved. In order to make it easier to
disassemble the combustion head, it is
recommended that the air intake box is
removed.
Disassembling the air intake box
(Image 1):
Only a few steps are required to disas-
semble the air intake box:
- Detach the hose (1) from the air pres-
sure switch on the pressure tap loca-
ted on the air intake box
- Open the manual locking system
- Remove the cover
Removing and closing the casing
cover
(Figure 2)
The casing cover is removed as follows:
- Screw out the screws (8) to (13).
- Remove the casing cover.
When closing the casing cover do the
following steps:
- Screw in the screws (8) to (13) by
doing only a few turns.
Tighten the screws beginning with the
screws (8) and (9), followed by the
screws (10) and (11) and finally by the
screws (12) and (13).
3
4
7
6
5
1
Figure 1
Figure 1
1
2
9
11
13
8
10
12
Figure 2
Removal of the firing head
(Figure 3 and 4)
For replacing and adjusting the baffle
plate and ignition system make sure to
remove the complete gas head from the
burner according to the following proce-
dure:
- Withdraw the flame sensor (14) after
loosening the screw (15).
- Disconnect ignition cable (16).
- Loosen nut (17) and remove the gas
pilot burner.
- Screw out the gas head fastening
screws (18), lift up the gas head (19)
from the locking pins (20) and take it
out backwards. Make sure the gasket
(21) is not damaged.
- Prior to reassembly, check the gasket
(21) and replace it if required.
- Reassemble in reversed order.
16
17
14
15
Figure 3
19
20
21
18
Figure 4
12/2011 14 072 205
Summary of Contents for Low-NOx N10.12000.30 G-EU2
Page 33: ...34 Manufacturer s declaration...
