Carrier Series 100 Installation, Start-Up, And Operating Instructions Manual page 38

FURNACE
NOT IN
HORIZONTAL
SECTION
Fig. 39—Combustion-Air and Vent Pipe Diameter
Transition Location and Elbow Configuration
COMBUSTION AIR
PIPE (NON-DIRECT
VENT/1-PIPE)
VENT PIPE
HORIZONTAL TO ROOF
COMBUSTION AIR
PIPE (DIRECT VENT
/2-PIPE)
COMBUSTION AIR
PIPE (NON-DIRECT
VENT/1-PIPE)
VERTICAL TO ROOF
PIPE DIAMETER
TRANSITION IN
VERTICAL SECTION
A93034
12 " MIN
12 " MIN
NOTE: A 12-In. minimum offset pipe section is recommended with
short (5-ft. to 8-ft) vent systems. This recommendation is to
reduce excessive condensate droplets from exiting the vent pipe.
→ Fig. 41—Short Vent (5 to 8 ft) System
3/8 ID TUBE
3/16
DRILL
4"MIN
TRAP
TO OPEN
DRAIN
→ Fig. 40—Air Intake Housing Plug Fitting Drain
COMBUSTION AIR
PIPE (DIRECT VENT
/2-PIPE)
COMBUSTION AIR
PIPE (NON-DIRECT
VENT/1-PIPE)
VENT PIPE
HORIZONTAL TO SIDEWALL
VENT PIPE
COMBUSTION AIR
PIPE (NON-DIRECT
VENT/1-PIPE)
VERTICAL TO SIDEWALL
38
COMBUSTION – AIR
INTAKE HOUSING
BURNER
BOX
COMBUSTION-AIR
PIPE (NON-DIRECT
VENT/1-PIPE)
12 " MIN
COMBUSTION AIR
PIPE (DIRECT
VENT/2-PIPE)
COMBUSTION AIR
PIPE (DIRECT VENT
/2-PIPE)
12 " MIN
VENT PIPE
COMBUSTION-AIR
PIPE (DIRECT
VENT/2 PIPE)
A05093
A05094