Lennox International Inc MERIT SERIES GAS FURNACE DOWNFLOW AIR DISCHARGE, ML193DF

Models: MERIT SERIES GAS FURNACE DOWNFLOW AIR DISCHARGE ML193DF

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Installation − Setting Equipment

ML193DF09048C BLOWER MOTOR RIGID LEG

remove shipping bolt and washer

FIGURE 8

Installation − Setting Equipment

Manual backgroundWARNING

Allow for clearances to combustible materials as indicated on the unit nameplate. Minimum clearances for closet or al- cove installations are shown in figure 11.

Manual background WARNING

Blower access panel must be securely in place when blower and burners are operating. Gas fumes, which could contain carbon monoxide, can be drawn into living space resulting in personal injury or death.

SETTING EQUIPMENT

Do not install the furnace on its front, back or in the horizontal position. See figure 10. Do not connect the return air ducts to the back of the furnace. Doing so will adversely affect the operation of the safety con- trol devices, which could result in personal injury or death.

Select a location that allows for the required clearances that are listed on the unit nameplate. Also consider gas supply connections, electrical supply, vent connection, condensate trap and drain connections, and installation

AIR FLOW

FRONT VIEW

AIR FLOW

AIR FLOW

1/2"

max.

SIDE VIEW

SIDE VIEW

and service clearances [24 inches (610 mm) at unit

front]. The unit must be level from side to side. Unit may be positioned from level to 1/2" toward the front to aid in draining. See figure 9.

Unit must be level side−to−side. Unit may be positioned from level to 1/2" toward the front to aid in draining.

FIGURE 9

Front

Horizontal

 

Back

NOTE − Do not install the furnace on its front, back or in the horizontal position

FIGURE 10

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Lennox International Inc MERIT SERIES GAS FURNACE DOWNFLOW AIR DISCHARGE, ML193DF Installation − Setting Equipment