All installations and services must be performed by qualified service personnel.
A plenum angles kit, (AOPS4942) is available for connecting the supply plenum to the furnace. The kit consists of four angles that are to be screwed to into the predrilled holes in the base of the furnace using # 8 screws.
The horizontal furnace installation should be on a service platform large enough to allow for proper clearances on all sides and service access to the front of the furnace (refer to Table 1). If the furnace is suspended, it must be supported at both ends and in the middle with clearance allowed for removal of both access doors. Line contact is only permissible between lines formed by the intersection of the top and two sides of the furnaces casing and the building joists, studs, or framing.
Equipment must be installed in accordance with regulations of the National Board of Fire Underwriters and the National Fuel Gas Code. Authorities having jurisdiction should be consulted before installations are made.
Figure 2: MDA1 Installed Horizontal
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