Manual 2100-404
Page 11
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
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.