wc_tx002070gb.fm
127
E 3000 Burner Setup—Gas
7.6 Changing the Burner Diaphragm
Requirements
Machine shut down
Machine cool
Correct burner diaphragm: C6 for NG; C3 for LP
Background
The burner can burn either LP or Natural Gas (NG). The burner comes from the
factory set up to burn NG. In order to burn LP (or to switch back from LP to NG), the
burner diaphram must be changed.
Procedure
Perform the procedure below to change the burner diphragm.
1. Shut down the machine and allow it to cool.
2. Remove the combustion head assembly (f). See topic Removing and Installing
the Combustion Head.
3. Loosen the clamp screw and remove the ionization probe (a) and the ignition
electrode (b).
4. Remove the two screws (c) and remove the gas diffuser (d).
5.
6. Remove the diphragm (e) from the elbow. Install a new diaphragm.
Note: There is a seal (g) inside the elbow; it may be reused. Replace it if it is
damaged.
Result
The procedure to change the diaphragm is now complete. Reassemble the burner.
Adjust the ionization probe and the ignition electrode.
wc_gr008963
f
wc_gr008965
a
b
wc_gr008966
c
d
wc_gr008967
g
e
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