Flame Color And Behavior - Lennox Hearth Products VISION Elite SDVSS-25 Installation And Operation Manual

10. After pilot is lit, turn gas control knob counterclockwise
.2 to "ON." Knob can only be turned to "ON" if the knob
has popped out.
11. To turn burner on, turn "ON/OFF" rocker switch to "ON" or
set the thermostat to the desired temperature above room
temperature.
12. Adjust the flame height (and heat output) by turning the flame
height knob clockwise
clockwise for reduced flame.
13. Turn on the electric power to the appliance and set the blower
to the desired air flow after it turns on when the appliance
reaches operating temperature.
TO TURN OFF GAS TO APPLIANCE
1. Turn off the "ON/OFF" rocker switch and/or thermostat (if
installed) to its lowest setting.
2. Turn off electric power to the appliance if service is to be
performed.
3. Push in gas control knob slightly and turn clockwise
to "OFF." Do not force.
SHUTDOWN PROCEDURE
To turn off the burner, turn the rocker switch to "OFF" or adjust
the thermostat (if installed) to a setting below room temperature.
The pilot will remain lit for future burner ignition. For complete
shutdown, see "TO TURN OFF GAS TO APPLIANCE" above.
IMPORTANT NOTE: When opening the lower door while
the stove is burning, pull down on the bottom trim piece
that extends beyond the lower door.
WARNINGS
• Improper installation, adjustment, alteration,
service or maintenance can cause injury or
property damage. For assistance or additional
information, consult a qualified installer, service
agency or your gas supplier.
• Operation of this appliance when not connected
to a properly installed and maintained venting
system can result in carbon monoxide (CO)
poisoning and possible death.
• Carbon monoxide poisoning – early signs of
carbon monoxide poisoning resemble the flu
with headaches, dizziness, or nausea. If you
have these signs, get fresh air at once! Have
the heater inspected by a qualified service
technician. Some people are more affected by
carbon monoxide than others. These include
pregnant women, people with heart or lung
disease or anemia, those under the influence
of alcohol and those at high altitudes.
for full flame and counter­
NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
Gas Control Knob
(pilot/on/off)
ON
HI
OFF
LO
Flame Height
Control Knob
- LO / HI +
Figure 22
SIT Millivolt Gas Valve
Gas Control Knob
(Pilot / On / Off)
Figure 23

Flame Color and Behavior

This appliance is designed for maximum heating efficiency. Therefore,
upon lighting of the main burner the flames will be semi­transparent or
"bluish." After 10­20 minutes of operation the logs will heat up and the
flames will become a yellow/orange color.
Adjusting the appliance to cause the flames to turn orange sooner may
result in poor combustion, sooting and a hazardous situation. See the
drawing to the right showing proper flame appearance.
When testing for proper operation ­ If an optional thermostat is installed
adjust it to its highest temperature setting. Visually determine that main
burner gas is burning properly: i.e., no floating, lifting or flashback.
Adjust the primary air shutter(s) as required. Check for proper main
burner operation at both high and low flame.
Burner Flame Appearance
Soot above
Soot at
Flame Tip
Flame Tip
Dark Orange
Flame
Ports on Pan
Burner Assembly
No Blue Flame
Center
IMPROPERLY
BURNING FLAME
Figure 24
Igniter
Blower
On/Off
Switch
Flame Height Control
Knob (HI/LO)
No Soot at
Flame Tip
Semi-Transparent
Yellow Flame
Blue Flame
Center
PROPERLY
BURNING FLAME
21