Installation manual
FIGURE 16 - Typical Installation of a Model UEAS High Efciency, Separated-Combustion
Unit with a Horizontal Vent/Combustion Air Terminal (Option CC6)
UEAS
Sizes
X Y
130, 180 8 ft 2.4 M 36" 914 mm
260, 310 10 ft 3.0 M 48" 1219 mm
**Minimum - Check for and comply
with local Codes.
5. Attach the concentric adapter box to the wall.
Insert the combustion air pipe with inlet guard attached out through the wall.
Position the box so that the pipe is centered in the opening. Attach the brackets
to the wall with eld-supplied hardware.
6. Determine length and install the “terminal-end” vent pipe.
6a) Determine length of pipe. The length of the continuous piece of terminal-
end vent pipe is determined by the installation within the maximum and minimum
requirements. See FIGURE 16 to determine lengths of each segment and cal-
culate the total length required. The “terminal-end” vent pipe extending through
the box and concentric through the inlet air pipe must be one piece of vent pipe
without joints.
6b) Drill a hole to attach the elbow at the end and install the pipe. Being
sure the vent pipe is in the proper ow direction, temporarily t the elbow on
the exhaust end of the vent pipe. For easier future service, the elbow is being
attached using one eld-provided 3/4” long sheetmetal screw. Using a drill that is
Form I-UEAS, P/N 221232 R11, Page 21