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Eclipse ExtensoHeat Lance Burners, V1, Installation Guide 235, 5/23/2011
Figure 4.1. Air Adjustment
6. Using a manometer, adjust the low-pressure switch air
circuit to 50% of the blower pressure.
7. Adjust the air line bypass to maintain a minimum
cooling airflow when the air valve is closed
NOTE:
Make sure the blower rotates in the correct
direction. If incorrect, have a qualified electrician rewire
the blower to reverse its rotation.
Step 2: Fuel Gas Adjustment and
Regulation
1. Check the gas pressure of selected nozzles on the
application.
2. Adjust the gas pressure at the entrance of the group of
burners so it corresponds with the pressure level stated
in Datasheet 235-1.
3. Adjust the low pressure switch of the gas line to 50-
70% of the required inlet pressure.
4. Adjust the high-pressure switch of the gas line to 20%
above the inlet pressure to the burners.
5. Fully open the manual gas valve.
6. Fully open the gas balancing valve to the burner.
Figure 4.2. Fuel Gas Adjustment
7. Use the gas curves from the appropriate ExtensoHeat
datasheet for the gas being used to find the gas
pressure needed at high fire. This is the target value for
high fire.
8. Adjust the gas pressure regulator to achieve the target
value.
9. Adjust the minimum pressure of the gas bypass to 10%
of the high fire pressure or lower if necessary to prevent
product damage during cycle advances (if it exists).
10. Repeat steps 3 and 4 for all burners of the group.
Step 3: Air Balancing Adjustment
Adjust the air balancing valve again for each burner to
keep the pressure at the selected value (4-6 “w.c. or 10-
15 mbar at Tap A)
Step 4: Settings Verification
After several operation cycles, check the chamber
temperature homogeneity, and, if necessary, adjust the
gas by adjusting the manual balancing valves for each
burner separately.
NOTE:
When all the settings have been completed, mark
the position of the indicator, or lock the balancing valves
to hold the valve position.
■
If simulated limits do not shut down the fuel
system within the required failure response time,
immediately correct the problem before
proceeding.
DANGER
