i.,,,,_t_ 12" MIN
VENT PIPE
VENT PIPE
HORIZONTAL TO ROOF HORIZONTAL TO SIDEWALL
F VENT PIPE
12" MIN
VENT PIPE
VERTICALTO ROOF VERTICAL TO SIDEWALL
NOTE: A 12-1n. minimum offset pipe section is recommended with
short (5 to 8 ft) vent systems. This recommendation is to reduce
excessive condensate droplets from exiting the vent pipe.
Fig. 38--Short Vent (8 to 8 Ft) System
A96189
EXAMPLE:
An 080-12 size furnace located in Indianapolis, elevation
650 ft above sea level, could be installed in an application
requiring 3 elbows and 32 ft of vent pipe Table 8 indicates
this application would allow a 2-in. diameter vent pipe. At
0°2000 k elevation, 2-in. pipe is good fbr up to 35 ft with
3 elbows. If same installation were in Albuquerque, eleva-
tion 5250 ft above sea level installation would require 2° 1/2
in. vent pipe. At 500I- to 6000-_ elevation, 2-in. pipe is
allowed for up to 23 f_ with 3 elbows, but 2-!/2 in. pipe can
be used for up to 70 ft with 3 elbows
Install vent pipe as _bllows:
l. Determine location of vent pipe connection to inducer housing
as shown in Fig 34 fbr application
2. Reposition elastomeric (rubber) inducer housing oudet cap
and clamp to appropriate unused inducer housing connection
Tighten clamp.
--€
___>
34
1
UNIT DAMAGE HAZARD
Failure to follow this caution may result in unit component
damage.
Inducer housing outlet cap must be installed and thlly seated
against inducer housing. Clamp must be tightened to prevent
any condensate leakage.
3, Install pipe support (factowosupplied in loose parts bag) into
selected furnace casing vent pipe hole, Pipe support shoutd be
positioned at bottom of casing hole
(ARBON MONOXIDE POISONING AND [NIT
DAMAGE HAZARD
Failure to fPllow this warning could result in personal injury
or death and unit damage
Vent pipe must be installed and fully seated against inducer
housing internal stop. Clamp must be tightened to prevent any
condensate leakage.
NOTE: A 2=in. diameter pipe must be used within the furnace
casing Make all pipe diameter transitions outside [:urnace casing.
4. Be certain that mating surfaces of inducer housing connection
elastomeric coupling, and 2-in diameter vent pipe are clean
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