GB-11
D
GB
F
NL
I
E
Checking the spark electrode and mixing
device
▷
The complete gas insert must be removed to
check the spark electrode and mixing device.
CAUTION
On the ECOMAX
®
..C, do not allow the mixing fun-
nel to strike the ceramic air guide tube fitted in the
burner. Risk of breakage.
▷
On ECOMAX
®
..M, ECOMAX
®
..F and
ECOMAX
®
..P of sizes 1 – 3, ensure that the
retaining bolts for the combustion chamber do
not fall out.
7
8
10
9
11
Check the
retaining bolts
as they are
only inserted
loosely.
7
8
10
9
11
Place the gas insert in a safe place.
ECOMAX
®
..M, ECOMAX
®
..F, ECOMAX
®
..P:
remove the retaining bolts for the combustion
chamber and remove the combustion chamber.
4
Check the electrode, mixing device (gas lance)
and insulator for dirt, wear and thermal damage
and cracks; clean or replace if necessary.
Checking and replacing the spark electrode/
flame rod
15
20
L
1
3
4
▷
Ensure that the electrode length does not change.
6
Remove dirt from electrode or insulator.
7
Replace the electrode if the tip
4
or insulator
is damaged.
▷
The electrode rod can also be replaced on its
own.
▷
Before changing the electrode, measure the
total length
L
.
15
20
L
1
3
4
8
Connect the new electrode rod to the spark
plug
.
9
Adjust spark plug and electrode rod to the meas-
ured total length
L
.
15
20
L
1
3
4
Replacing the gas lance
1,5 – 2 mm
3,4–3,8 mm
X
X
15
18
16
17
19
20
21
Tighten the
union nut
only slightly.
Align the gas
lance so that
the electrode
is not subject
to mechanical
stress.
ECOMAX 4–5:
distance
between
insulator and
burner head
ECOMAX 0–3:
align and
centre the
electrode.
