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Instruction Manual
748297-E
June 2003
4-10 Maintenance and Troubleshooting Rosemount Analytical Inc. A Division of Emerson Process Management
Model NGA2000 HFID
Installation
WARNING
BURNER CONTAMINATION
Do not handle internal parts of the
burner with bare hands. All tools used
for maintenance must be free of con-
taminates.
1. Install new lower gasket, jet assembly
and upper gasket into burner base,
finger-tight jet nut.
2. Install new sample jet (with gasket)
and tighten.
3. Tighten jet nut.
4. Install air baffle per Figure 4-8 on
page 4-9.
Note
Incorrect installation of air baffle will
cause ignition failure.
5. See Figure 4-7B on page 4-8. Insert
new o-ring into burner base.
6. Set combustion chamber into burner
base being careful not to move air
baffle.
7. See Figure 4-7A on page 4-8. Insert
new gasket on combustion chamber,
install burner cap and burner cap re-
tainer, torque screws to 6 inch lbs.