Table of Contents
Advertisement
EXHAUST PIPE
Horizontal Application
NOTE: All horizontal runs of exhaust pipe must slope back toward
unit. A minimum of 1/4" (6 mm) drop for each 12" (305 mm) of
horizontal run is mandatory for drainage.
NOTE: Exhaust pipe MUST be glued to furnace exhaust fittings.
NOTE: Exhaust piping should be checked carefully to make sure
there are no sages or low spots.
NOTE: The exhaust collar on all models is sized to
accommodate 2" Schedule 40 vent pipe. When vent pipe
which is larger than 2" must be used in an upflow application,
a 2" elbow must be applied at the exhaust collar in order to
properly transition to the larger diameter vent pipe. This
elbow must be added to the elbow count used to determine
acceptable vent lengths. Contact Allied Air Technical Service
for more information concerning sizing of vent systems which
include multiple pipe sizes.
IMPORTANT
Do not use screens or perforated metal in exhaust or
intake terminations. Doing so will cause freeze-ups and
may block the terminations.
MINIMUM VENT PIPE LENGTHS
* Any approved termination may be added to the minimum equivalent
length listed.
506550-01
Figure 16
Table 4
Issue 1230
Figure 17
Page 15 of 66
Hide quick links:
Advertisement
Table of Contents
