Lennox Hearth C42 - Manual (Page 30)

30 NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.
TO TURN OFF GAS TO APPLIANCE
1. Turn off the "ON/OFF" rocker switch and/or thermostat (if in-
stalled) 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.
This appliance needs fresh air for safe operation and must be
installed so there are provisions for adequate combustion and
ventilation air.
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.
Flame Color and Behavior
Your Ravelle™ 42 gas fireplace is designed for maximum heating ef-
ficiency. Therefore, upon lighting of the main burner the flames will be
semi-transparent or “bluish.” After 10-20 minutes of operation the logs
will heat up and the flames will become a yellow/orange color.
Adjusting the fireplace to cause the flames to turn orange sooner may
result in poor combustion, sooting and a hazardous situation. See Figure
45 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.
PILOT ASSEMBLY
Thermopile
Veilleuse à gaz Igniter (electrode)
Allumeur
Thermocouple
Gas Pilot Hood
TP/TH
TH
TP
Gas Control Knob
(Pilot / On / Off)
O
FF
O
N
Piezo Igniter
Allumeur
ON/OFF Switch
Interrupteur
Flame Height Control
Knob (HI/LO)
No Blue Flame
Center
Soot at
Flame Tip
Dark Orange
Flame
IMPROPERLY
BURNING FLAME
Soot above
Flame Tip
No Soot at
Flame Tip
PROPERLY
BURNING FLAME
Semi-Transparent
Yellow Flame
Blue Flame
Center
Ports on Burner
Assembly
Burner Flame Appearance
Figure 44
Figure 45
SIT Millivolt Gas Valve
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.