Inspecting Burners - Superior VD1824NM Installation And Operation Instructions Manual

7. Keep control knob pressed in for 30 sec-
onds after lighting pilot. After 30 seconds,
release control knob.
NOTE: If pilot goes out, repeat steps 3
through 7.
Control Knob
Figure 39 - Control Knob and Igniter
Button Location
• If control knob does not pop out when
released, contact a qualified service
person or gas supplier for repairs.
8. Slightly press and turn control knob coun-
terclockwise
level. The burner should light. Set control
knob to HI or LO.
WARNING: Do not operate heater
between PILOT and HIGH positions.
Check pilot fl ame pattern and burner fl ame
patterns often.
PILOT FLAME PATTERN
Figure 40 shows a correct pilot fl ame pattern.
Figure 41 shows an incorrect pilot fl ame pat-
tern. Incorrect pilot fl ame is not touching ther-
mocouple. This will cause the thermocouple
to cool. When thermocouple cools, heater
will shut down.
If pilot fl ame pattern is incorrect, as shown
in Figure 41
• turn heater off (see To Turn Off Gas to
Appliance, Page 24.
• see Troubleshooting, Page 26
NOTE: Pilot fl ame on natural gas units will
have a slight curve, but fl ame should be blue
and have no yellow or orange color.
Thermocouple
Figure 40 - Correct Pilot Flame Pattern
24
OPERATION
Continued
9. To leave pilot lit and shut off burners only,
HI
PILOT
OFF
LO
1. Turn control knob clockwise
2. Close equipment shutoff valve (see Fig-
1. Follow steps 1 through 5 under Lighting
to desired heating
2. Press control knob and light pilot with
3. Keep control knob pressed in for 30 sec-

INSPECTING BURNERS

Thermocouple
BURNER PRIMARY AIR HOLES
Air is drawn into burner through holes in fi t-
ting at entrance to burner. These holes may
become blocked with dust or lint. Periodically
inspect these holes for any blockage and
clean as necessary. Blocked air holes will
create soot.
MAIN BURNER
Periodically inspect all burner fl ame holes
with heater running. All slotted burner fl ame
Pilot Burner
holes should be open with yellow fl ame pres-
ent. All round burner fl ame holes should be
open with a small blue fl ame present. Some
burner fl ame holes may become blocked by
debris or rust, with no fl ame present. If so,
turn off heater and let cool. Remove blockage,
blocked burner fl ame holes will create soot.
SuperiorFireplaces.US.com
turn control knob clockwise
PILOT position.
CAUTION: Do not try to adjust
heating levels by using the equipment
shutoff valve.
TO TURN OFF GAS
TO APPLIANCE
position.
ure 15, Page 15).
MANUAL LIGHTING
PROCEDURE
Instructions beginning on Page 23.
match.
onds after lighting pilot. After 30 seconds,
release control knob. Now follow step 8
under Lighting Instructions, above.
Figure 41 - Incorrect Pilot Flame Pattern
to the
to OFF
Pilot Burner
126838-01C