Bosch HDS7052U - Manual (Page 9)

Safety Instructions
Preparation
Installation
Final Steps
English • 7
... Our Inspiration
Replacement Parts: Visit your Bosch dealer for replacement parts. For a dealer near you contact Bosch Service
at 800-944-2904.
Step 8: Test the Installation
8A. Test Electric Ignition
Turn on power at breaker.
8B. Test/Adjust Flame
High Setting:
The combustion quality of the flame for each burner
must be visually inspected. For propane, the flame
should be blue with yellow tips. For natural gas, it
should be soft blue in color. The flame should carry over,
or surround, the entire burner and should not lift or
blow off the burner.
To inspect, turn the burner on. See Figure 13 for
appropriate flame characteristics.
If the flame is completely or mostly yellow, verify that
the regulator is set for the correct fuel. After
adjustment, retest. If any of the burners continue
to burn mostly or completely yellow, call Bosch
Service 800-944-2904.
Note: With LP use, some yellow tipping on outer cones
is normal.
Low Setting
All burners must also be inspected for carry-over. On
low, the flame should completely surround the burner. If
any of the cooktop burners do not carry over on
the low setting, call Bosch Service 800-944-2904.
Installation is complete at this time.
Flame Characteristics
Figure 13
Yellow Flames:
Further adjustment is required.
Yellow Tips on Outer Cones:
Normal for LP Gas.
Soft Blue Flames:
Normal for Natural Gas.
Some yellow streaking is normal during the
initial start-up.
Allow unit to operate 4-5 minutes and
reevaluate before making adjustments.
WHEN PROPERLY ADJUSTED:
There should be a flame at each burner
port.
There should be no air gap between the
flame and burner.
Caution:
If the display flashes and beeps, the polarity of the
wiring may be reversed. Reversed polarity can
damage the range and can result in electrical shock
hazard. Immediately switch off power at the breaker
and return to step 6.
Select a rangetop burner knob. Push down and turn to
the flame symbol. If the ignitor/spark module is
operating correctly, it will produce a clicking sound.
Once the air has been purged from the supply lines, the
burner should light within four (4) seconds. After burner
lights, turn knob to the off position.
Test each rangetop burner in this fashion.
Call Bosch Service at 800-944-2904 if any of the
burners do not light.