All installations and services must be performed by qualified service personnel.
Use the base bottom panel as a template to mark floor opening locations (see Figure 2). Cut a square opening in the floor for the supply air connector duct. Cut the opening
Figure 2.
After cutting openings in the floor, place the bottom panel in position. Mark the square opening location on the distribution duct at the connection point of the connector duct. Remove the bottom panel. Cut an opening in the distribution duct slightly larger than the connector duct. (refer to Figure 2 for location of this cut.) Cut the connector duct to length. Install the connector duct. Bend over each tab. Insure an airtight seal by using high temperature sealant or tape on the joint. Reinstall the bottom panel over the connector duct. Insert and secure the combustion air duct. Put the base top assembly in place (see
IMPORTANT: A combustion air duct must be used. If the underside of the mobile home is skirted or enclosed (e.g. enclosed in a crawlspace), the combustion air intake should exit through the skirting, or enclosure, if at all possible. All joints and seams of supply ducts and combustion air ducts must be closed with a sealing method suitable to the application conditions and temperatures ( e.g. high temperature silicone caulk and/or aluminum tape).
Notice: If desired, combustion air can be brought in thru the roof of the dwelling and into to the furnace cabinet with Thermo Products Kit AOPS7512. See your local Thermo Pride representative for details or call customer service.
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