Burner Flame Adjustments - kozy heat CALLAWAY 50 Installation And Operation Manual

11.2 Burner Flame Adjustments

WARNING: To avoid property damage or personal injury, allow the
fireplace ample time to cool before making any adjustments.
Burner flame appearance and characteristics are affected by
altitude, fuel quality, venting configuration, and other factors. After
installation, this appliance may need additional adjustments to
achieve optimum flame appearance and visual aesthetics.
11.2.1 Burner Venturi
WARNING: VENTURI ADJUSTMENT MUST BE DONE BY A QUALIFIED
SERVICE TECHNICIAN.
NOTE: Burner venturi air shutter settings have been factory set. Refer
to Table 11.3.
When this appliance is first lit, the burner flames will appear blue.
During the first 15 minutes of operation, flame appearance will
gradually turn to the desired yellow appearance. If the flames remain
blue, or become dark orange with evidence of sooting (black tips),
adjustment of the air shutter opening may be necessary.
Regardless of venturi orientation, closing the air shutter will achieve a
desired yellow flame, but may produce soot on the glass. Opening the
air shutter will cause a short, blue flame that may lift off the burner.
Table 11.3, Factory Set Venturi Openings
Fuel Air Shutter Opening
Natural Gas
Propane
11.2.1.1 Venturi Adjustment
NOTE: If soot is present on the glass, check glass media placement
before adjusting the venturi.
1. Remove the safety barrier, access cover, and glass frame
assembly.
2. Remove media.
3. Remove the pilot shield (2) screws.
4. Remove the burner and burner cover (4) screws. Release the
burner tube venturi off the burner orifice.
5. Loosen screw on venturi and adjust as necessary. Re-tighten
screw.
6. Reinstall all components previously removed.
BURNER VENTURI
Figure 11.2, Burner Venturi
#CLW-50 R.1 March 2018
IMPORTANT: Slight adjustments to the venturi opening will create
dramatic results. Adjust at slight increments until desired look is
achieved. Always burn the fireplace insert for at least 15 minutes, and
allow the appliance ample time to cool before making any further
adjustments.
Flame Characteristic
Dark, orange flame
with black tips
Short, blue flames
Lifting (ghosting)
flames
1/8 in (3.2 mm) OPEN
1/2 in (12 mm) OPEN
Figure 11.3, Flame Appearance and Characteristics
Hussong Mfg. Co., Inc. • Kozy Heat Fireplaces
Table 11.4, Venturi Adjustment Guidelines
Cause
Venturi closed too far
Venturi open too far
Gas pressure too high
Venturi closed too far
IDEAL
LAZY, YELLOW FLAMES
DARK, ORANGE FLAMES
WITH BLACK TIPS
SHORT, BLUE FLAMES
LIFTING (GHOSTING) FLAMES
Solution
Open venturi slightly
Close setting slightly
Check manometer
settings
Open venturi setting
slightly
ADJUSTMENT 41