15
Eclipse Winnox Burner, WX Series, V2, Installation Guide 111, 2/26/2010
7. Turn bias adjusting screw
X
slightly to achieve
0.1" w.c. (0.3 mbar)
'
p between
Tap B
and the
combustion chamber. Repeat ignition sequence until
burner lights.
NOTE:
If viewing the flame, it should be blue with flashes
of yellow. The flame should be completely within the
combustion tube. When firing propane or butane, a proper
low fire flame may have sustained flashes of yellow.
8. Verify low fire flame.
a. Drive control motor from low fire and back. Verify
low fire and stable flame signal are repeated.
b. Turn the burner off and repeat the ignition
sequence. Verify low fire and stable flame signal are
repeated.
9. Close all pressure taps.
Step 5: Set High Fire Gas
Figure 4.9 High Fire Gas Adjustment
1. Set manual gas butterfly valve to 75% open. See
Figure 4.8.
NOTE:
To adjust manual butterfly valve:
a. Loosen set screw
b. Turn dial
c. Tighten set screw
2. With burner lit, drive control motor to high fire position.
3. Measure air loading line pressure from
Tap C
to the
chamber.
4. Refer to the “Air
'
p vs. Input” graph on appropriate
datasheet and determine the desired input for
measured air
'
p.
5. Measure gas flow and input using customer supplied
measuring device.
6. Adjust high fire gas flow using manual butterfly valve
X
(refer to step 1 for adjustment procedure) to match
the desired input determined in step 4.
7. Measure gas pressure at the burner inlet
Y
and verify
the pressure is within the range specified on the
datasheet.
8. If required gas flow cannot be achieved, refer to
Chapter 5, “Maintenance & Troubleshooting” in this
manual.
Step 6: Verify Settings
Figure 4.10 Verify Pressure Settings
1. With burner lit, drive control motor to high fire.
2. Wait for the chamber to reach normal operating
conditions (e.g. chamber temperature, process flows,
etc.).
3. Measure high fire fuel using fuel flow measurement
device. Compare this to the rated high fire on
datasheet.
4. Measure high fire air differential pressure between
Tap C
and the chamber. Compare this pressure to the
“
Air
'
p vs. Input
”
chart on the datasheet.
5. Drive the control motor to low fire and verify low fire
flame signal and flame appearance (if viewing).
6. Cycle burner from high to low several times to check
repeatability of settings.
7. Readjust burner if the settings do not repeat as
expected. If necessary, refer to Chapter 5,
“Maintenance & Troubleshooting”.
8. Use the system setup summary sheet on page 21 to
record all setup data as an aid for future
troubleshooting and setup operations.
Ŷ
Do not turn the combustion air blower off until the
chamber temperature is below 250°F (121°C). This
will prevent hot gases from back flowing into the
burner and blower causing damage to the burner.
9. Stop the burner.
T
a
p B
T
a
p C
To
Ch
am
ber
T
a
p C
Ch
am
ber
CAUTION
