Lennox Hearth CI1500DVF manual Burner Air Shutter Adjustment, Air Shutter Adjustment Guidelines

Page 7

ENSURE THAT THE FRONT GLASS PANEL IS IN PLACE AND SEALED DURING ADJUSTMENT.

Adjustment

CAUTION: THE ADJUSTMENT ROD AND NEARBY APPLIANCE SURFACES ARE HOT. EXERCISE CAUTION TO AVOID INJURY WHILE ADJUSTING FLAME APPEARANCE.

Initially, always position the air shutter to the factory setting as shown in Figure 8 (adjust- ment rod is located in the lower control area). This can be done by moving the adjustment rod up or down accordingly. Allow the burner to operate for at least 15 minutes. Observe the flame continuously. If it appears weak or sooty as previously described, adjust the air shutter to a more open position until the desired flame appearance is achieved.

The adjustment rod and associated adjustable airshutterispatentedtechnology.Flameadjust- ments can be made quickly and accurately to taste without the need of disassembling the appliance and waiting for 30 minutes after each adjustment.

Propane models may exhibit a flame pattern that may candle or appear stringy. If this is problematic or persists as the appliance is continually operated, adjust the air shutter open as described in the previous paragraphs. Operate the appliance for a period of time as the effect diminishes, ensuring that the appliance does not develop sooty flames.

Burner Air Shutter Adjustment

Adjusting Set Screw

Adjustment Rod Up

(1/8" Open Position)

Burner Tube

Air Shutter

Adjustment Rod Down (full open position)

Figure 8

Main Burner Factory Air Shutter

Opening Setting - Inches (millimeter)

Model

 

Natural

Propane

 

 

 

 

 

 

Gas

Gas

 

 

 

 

 

 

 

 

 

 

 

CI1500DVF

 

5/16"

 

5/8"

 

(7.93 mm)

(15.9 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CI2500DVF

 

1/2"

 

 

5/8"

 

(12.7 mm)

(15.9 mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air Shutter Adjustment Guidelines:

 

 

 

 

 

 

 

 

 

 

Amount of

Flame

Air Shutter

Primary Air

Color

Adjustment

If air shutter is

Flame will

Air shutter

closed too far

be yellow

gap should be

 

 

 

 

 

 

 

 

 

 

increased

 

 

 

 

 

 

 

 

 

 

If air shutter is

Flame will

Air shutter

open too far

be blue

gap should be

 

 

 

 

 

 

 

 

 

 

decreased

 

 

 

 

 

 

 

 

 

 

Table 6

NOTE: DIAGRAMS & ILLUSTRATIONS NOT TO SCALE.

Air Shutter Adjustment Guidelines:

If the burner flame appearance differs greatly from what is shown on page 6 (see Burner Flame Appearance), some adjustment from the factory setting for the air shutter gap may be necessary (to compensate for variables in the installation and fuel such as, BTU value / composition, gas pressure, specific gravity of gas, altitude, etc.).

Table #6 is provided to aid you in achieving the correct air shutter adjustment for your installation.

When satisfied that the appliance operates properly, proceed to finish the installation. Leave the control knob in the ON position and the ON/OFF switch in the OFF position. Close the lower access door.

7

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Contents Pour Réduire AU Minimum LE Risque D’INCENDIE Table of Contents Operation and Care of Your Appliance Control Compartment AccessLower Access Door Tables 3 and 4 show the units gas pressure requirementsModels with Porcelain Enamel Finish MaintenanceGlass Cleaning Verify Proper Operation After ServicingMaintenance Task Accomplishing Person Procedure Maintenance ScheduleBurner Flame Appearance Front Glass Enclosure Panel, Removal and InstallationBurner Adjustments Reinstall TrivetAir Shutter Adjustment Guidelines Burner Air Shutter AdjustmentRear Log Stoppers Log PlacementLeft Top Twig Small Area Paint Touch-up Do not Place Embers on TOP of the Burner SlotsSIT Millivolt Appliance Checkout Proper Pilot Flame AppearanceProduct Reference Information Wiring DiagramsWarranty Information Replacement PartsAccessory Components Warming Shelves Brickaded Liner KitsTo Pilot To Turn OFF GAS to ApplianceThis appliance has a pilot which must be lighted with a SIT Millivolt Gas ValvePour Fermer LE GAZ QUI Alimente L’APPAREIL Instructions DallumageSymptom Possible Causes Corrective Action Gas Controls Replacement Parts ListCast Body Components Room Air Blower System Optional Kit 425 13142021 29b Optional Warming Shelves Kit Reference Information