New Buck Corporation 74 - Manual (Page 29)

14. From under the mobile home, slip the duct up through the 4-1/4" hole. Push up until the
face of the outside air duct contacts the underside of the floor of the mobile home. For
certain floor thickness, you may have to shorten the length of the outside air duct.
15. Secure the outside air duct to the floor using the four (4) #10x1 screws provided. (See
Figure 12A.)
Figure 12A
Ceiling Exit (Using Close Clearance listed chimney)
1. Suspend a plumb bob from the ceiling above the unit so that the weight is hanging in the
center of the flue exit. ( A small weight on a string will serve as a plumb bob.) Mark
the ceiling where the string is suspended to locate the center of the chimney hole.
24" min.
(610 mm)
OUTSIDE AIR DUCT THROUGH FLOOR WHEN
MOBLE HOME IS NOT UNDERPENNED
RAIN CAP
FLASHING
RADIATION SHIELD
24" min.
(610 mm)
OUTSIDE AIR DUCT THROUGH UNDERPENNED
RAIN CAP
FLASHING
RADIATION SHIELD
36" TYP.
36" TYP.
20 FT. MAX.
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