16
TO TURN OFF GAS TO APPLIANCE
(Refer to controls shown in Figures 16a and 16b)
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 per-
formed.
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 Firestar™ gas insert is designed for maximum heating efficiency.
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 insert to cause the flames to turn orange sooner may result
in poor combustion, sooting and a hazardous situation. See Figure 17
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.
Test for spillage at the draft hood relief opening after 5 minutes of main
burner operation. Use a draft gauge, the flame of a match or candle, or
smoke from a cigarette, cigar or pipe.
Piezo Igniter
ON/OFF Switch
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 Pan
Burner Assembly
Burner Flame Appearance
Figure 16b
Figure 17
Replacing Burner Orifices
To change orifices, first remove the cassette (see Fuel Conversion and
Cassette Installation on Page 21). Then unscrew orifice using an 3/4”
open end wrench, discard the old orifice and reinstall the new orifice.
REDUCING THE ORIFICE SIZE FOR HIGHER ALTITUDES MAIN-
TAINS THE PROPER BTU INPUT TO AIR RATIO. TOO LARGE
AN ORIFICE WILL RESULT IN HIGHER BTU INPUTS THAN THE
DESIGN ALLOWS, MAY RESULT IN AN UNSAFE CONDITION AND
MAY VOID YOUR WARRANTY.
Off/On/Pilot
Flame Height
Adjustment
LO
HI
Gas Control
Knob Off/On/Pilot
Flame Height
Control Knob
(Hi/Lo)
Robertshaw
Gas Valve
Millivolt Pilot
Thermopile
Igniter
Gas Pilot Hood
3/8” to
1/2”
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.
Figure 16a
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