Step 10: Burner Test And Adjustment - Thermador PRO-GRAND PRG30 Installation Manual

Step 10: Burner Test and
Adjustment
Install any loose components, such as burner caps and
grates that may have been removed earlier. Be certain that
burner caps seat properly into the burner bases. Before
testing operation of the appliance, verify that the unit and
the gas supply have been carefully checked for leaks and
that the unit has been connected to the electrical power
supply. Turn the gas shut-off valve to the open position.
Test Rangetop Burners
Test Burner Ignition. Select a rangetop burner knob. Push
in and turn counterclockwise to HI. The ignitor/spark
module will produce a clicking sound. Once the air has
been purged from the supply lines, the burner should light
within four (4) seconds.
Test Flame: High Setting. Turn burner on to HI. See
Figure 11 for appropriate flame characteristics.
If any of the rangetop burners continue to burn mostly or
completely yellow, verify that the burner cap is positioned
properly on the burner base, then retest. If flame
characteristics do not improve, call Thermador.
Test Flame: Low Setting. Turn burner on to LO. Verify that
the flame travels completely around the burner. This is
know as a "carry over". There should be a flame at each
burner port and there should be no air gap between the
flame and the burner. If any burners do not "carry over," call
Thermador.
The two left burners feature XLO, that causes the flame to
cycle on and off when the knob is set to the XLO range.
This is normal operation.
Repeat these Ignition and Flame Test procedures for each
rangetop burner.
English 18
Yellow Flames:
Further adjustment is required.
Yellow Tips on Outer Cones:
Normal for LP Gas.
Soft Blue Flames:
Normal for Natural Gas.
If the flame is completely or
mostly yellow, verify that the regulator is set for the
correct fuel. After adjustment, retest.
Some orange-colored streaking is normal during the
initial start-up.
Allow unit to operate 4-5 minutes and re-evaluate
before making adjustments.
When Flame is Properly Adjusted:
• There should be a flame at each burner port.
• There should be no air gap between the flame and
burner port.
The gas oven(s) uses a tube-style burner that has an air
shutter which allows adjustment to the amount of primary
air inside the burner tube.
Air shutters of tube-style burners are pre-adjusted at the
factory, and usually do not require readjustment except
under rare conditions such as installation at high altitude.
Test Oven Burners
Remove the oven bottom cover. Remove the 4 screws that
attach the cover to the bottom of the oven, then lift the
cover and angled baffle plate out to expose the U-shaped
bake burner.
Test Bake Burner Ignition
Set the oven to BAKE at 350°F. After a short delay, the
burner will ignite. The burner will stay lit until 350°F is
reached and then shut off. From this point forward, the
burner will cycle on and off to maintain the temperature.
Figure 11: Flame Characteristics