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Manual 2100-425
Page 12
Side section view of supply air duct for
wall mounted unit showing 1/4 inch
clearance to combustible surfaces.
FIGURE 7
ELECTRIC HEAT CLEARANCE
MIS-277
WARNING
• A minimum of 1/4 inch clearance must be maintained between
the supply air duct and combustible materials. This is required
for the first 3 feet of ducting.
• It is important to insure that the 1/4 inch minimum spacing is
maintained at all points.
• Failure to do this could result in overheating the combustible
material and may result in fire.