Lennox International Inc G50UH-48C-110, G50UH-60D-135, G50UH-36C-110 Warning &Warning

Thisfurnacemaybeinstalledineitheranatticoracrawl- space.Eithersuspendthefurnacefromroofraftersor floorjoists,asshowninfigure12,orinstallthefurnaceon

aplatform,asshownin figure13.Theunitmustbesup- portedat bothendsandbeneaththeblowerdecktopre- ventsagging.

Typical Horizontal Application

Unit Suspended in Attic or Crawlspace

Leave sufficient clearance between rod and unit to remove access panel.

1/4 i

ANGLE

IRON

U-CHANNELS

FIGURE 12

NOTE - Heavy-gauge perforated sheet metal straps (plumbers' straps) may be used to suspend the unit from roof rafters or ceiling joists. When straps are used to sus- pend the unit in this way, support must be providedfor both the ends and the middle of the furnace to prevent sagging. The straps must not interfere with the plenum or exhaust piping instaflation. Securing screws should be 1/2 inch from the top edge and 1-1/2 inch from the side edge in aft cases. Cooling coils and supply and return air plenums must be supported separately.

NOTE - When the furnace is installed on a platform in a crawlspace, it must be elevated enough to avoid water damage and to allow the evaporator coil to drain.

Return Air -- Horizontal Applications

Return air can be brought in through the end of a furnace installed in a horizontal application, The furnace is equipped with a removable bottom panel to facilitate installation, See figure 9,

Horizontal Application

Unit Installed on Platform

NOTE - Line contact is permis-

sible. See the unit nameplate for clearances.

\

\

\

GAS

ENTRY

__VENT PIPE

WORKING

PLATFORM

FIGURE 13

-&WARNING

&WARNING

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