Electronic Appliance Checkout - Lennox Montebello DLX Series Care And Operation Instructions Manual

Direct vent gas fireplaces

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Table Of Contents

Table of Contents

LENNOX HEARTH PRODUCTS • MONTEBELLO

BURNER FLAME ADJUSTMENTS

(QUALIFIED TECHNICIANS ONLY)

WARNING

• Air shutter adjustment should

only be performed by a

qualified professional service

technician.

• Ensure that the front glass

door assembly is in place

and sealed After adjustment.

CAUTION

Soot will be produced if the

air shutter is closed too much.

Any damage due to carboning

resulting from improperly

setting the air shutter is not

covered under the warranty.

f i r e - p a r t s . c o m

To adjust the flame, rotate the air shutter toward

the back or toward the front of the fireplace.

Position the air shutter to the factory setting

as shown in Figure 14. Allow the burner to

operate for at least 15 minutes. Observe the

flame. If it appears weak or sooty as previously

described, adjust the air shutter until the flame

appearance is as desired.

Use the remote to adjust the flame height

as desired.

Propane models may exhibit a flame pattern that

may "candle" or appear stringy. If this is prob-

lematic or persists as the appliance is continually

operated, close the air shutter, as described here.

Operate the appliance for a period of time as the

effect diminishes, ensuring that the appliance

does not develop sooty flames. When satisfied

that the appliance operates properly, proceed

to finish the installation.

DLX DIRECT VENT GAS FIREPLACES (MDLX40/45) • CARE AND OPERATION INSTRUCTIONS

Air Shutter

Opening

Venturi

Orifice

Gas

Valve

Burner

Venturi

Main Burner Factory Air Shutter

Opening Setting - Inches (millimeter)

Model

Nat.Gas

Propane Gas

MDLX40

1/16 (1.59)

9/32 (7.14)

MDLX45

1/16 (1.59)

9/32 (7.14)

Figure 14 - Air Shutter Adjustment

NOTE: DIAGRAMS & ILLUSTRATIONS ARE NOT TO SCALE.