Start-up
Adjustments
Diffusers and injectors
G 517/8
G 517/8
GX 517/8 low NOx
GX 517/8 low NOx
Natural gas
Propane gas
Natural gas Low NOx
Propane gas Low NOx
11/2003 - Art. Nr. 13 013 506A
Head G adjustment for natural gas
Diffusers A:
Upstream slots fully open
–
Downstream injector fully closed by
–
pellet P
Diffusers C:
Upstream slot closed
–
Downstream injector fully open
–
Ignition diffuser D:
Upstream slot open
–
Downstream injector fully open
–
Head G adjustment for propane gas
Diffusers A:
Upstream slots fully open
–
Downstream injector fully closed by
–
pellet P
Diffusers C:
Upstream slot closed
–
Downstream injector fully closed
–
Ignition diffuser D:
Upstream slot open
–
Downstream injector fully open
–
Comment
In order to make some adjustments
easier, it is possible to reduce the
number of slots evenly on diffusers A
with obturator E.
Head GX adjustment for Low NOx
natural gas
Diffusers A:
Upstream slots fully closed
–
Downstream injector pellet P1 with
–
screw in position 5
Diffusers C:
Upstream slot closed
–
Downstream injector with screw in
–
position G2
Ignition diffuser D:
Upstream slot open
–
Downstream injector with screw in
–
position G2
Head GX adjustment for Low NOx
propane gas
Diffusers A:
Upstream slots open
–
Downstream injector pellet P1 with
–
screw in position 1
Diffusers C:
Upstream slot closed
–
Downstream injector with screw in
–
position G2
Ignition diffuser D:
Upstream slot open
–
Downstream injector with screw in
–
position G2
EN
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