kozy heat 56701 Installation Manual page 30

FINALIZING THE INSTALLATION
FLAME APPEARANCE:
Flame appearance is affected by several factors including altitude, venting configuration and fuel quality. Although the venturi setting has
been factory set, adjustments may be necessary for optimal performance and visual aesthetics.
When fireplace is first lit, the flames will be blue. Flames will gradually turn yellowish-orange during first 15 minutes of operation. If
flames remain blue, or become dark orange with evidence of sooting (black tips), the burner tube venturi may need adjustment.
Correct pilot flame
Figure 29a
FACTORY SET BURNER TUBE VENTURI SETTINGS
(ADJUST AS NECESSARY FOR YOUR INSTALLATION)
NATURAL GAS
1/8" (3mm) OPEN
VENTURI POSITION
Closed too far
Open too far
NOTE If soot is present, check log positioning before adjusting burner venturi. Logs must not block burner ports.
SL I G HT AD J U STM EN T S T O BU R N ER VE N TU RI OP EN IN G CR E A TE D R AM A TI C R E SU LT S. A D J U ST AT SL I G HT
IMPORTANT
INCREMENTS
AND ALLOW TIME TO COOL BEFORE MAKING ANY FURTHER ADJUSTMENTS.
TO ADJUST VENTURI:
WARNING To avoid property damage or personal injury, allow fireplace ample time to cool before making any adjustments.
1. Remove upper louver and hood.
2. Remove glass frame assembly.
3. Remove log set.
4. Remove burner tube.
5. Loosen screw on burner venturi and adjust as necessary. Tighten screw.
6. Reinstall all components previously removed.
7. Light fireplace and wait 15 minutes before determining if any further adjustments are needed.
Figure 29b
LP (PROPANE) GAS
5/8" (16mm) OPEN
BURNER TUBE VENTURI ADJUSTMENT GUIDELINES
FLAME COLOR
Dark orange flame with black tips
Blue flames
UNTIL DESIR ED LOO K IS ACHIEVED. ALW AY S BURN FIREPLACE FOR AT LEAST 15 M INUTE S
Lazy yellow flames - ideal
Dark orange flames / black tips
Venturi closed too far
Excessive burner media
Open venturi setting slightly
Close venturi setting slightly
29
Short blue flames
venturi open too far
Lifting (ghosting) flames
Improper Venting
Gas pressure too high
VENTURI ADJUSTMENT
BURNER VENTURI
Figure 29c