Goodman MEC96 Series Instruction Manual page 17

COMBUSTION AIR INTAKE
(OPTIONAL)
*Not required for
single pipe installation
12" MIN TO ROOF OR HIGHEST
ANTICIPATED SNOW LEVEL
Figure 16
STRAIGHT
Direct Vent (Dual Pipe) Piping
Figure 17
Alternate Horizontal Vent Termination (Dual Pipe)
Figure 18
TEE (OPTIONAL)
12" MIN
HEIGHT DIFFERENCE
BETWEEN
INTAKE AND VENT
ELBOWS
90°
ELBOWS
3" - 24"
COMBUSTION
AIR INTAKE.
DISTANCE BETWEEN
COMBUSTION AIR
INTAKE AND GRADE
Combustion Air Intake may also be snorkeled to obtain 12" min ground clearance.
Alternate vent termination above anticipated
snow level (dual pipe)
Vent/Flue and Combustion Air Pipe
Terminations
Termination of Multiple Direct Vent Furnaces
17
DISTANCE BETWEEN
Figure 19
90°
ELBOWS
3"-24" BETWEEN PIPES
Figure 20
3"MIN
24"MAX
12" MIN SEPARATION
3" MIN
12" MIN TO GRADE OR HIGHEST
ANTICIPATED SNOW LEVEL
Figure 21
VENT/FLUE
TEE
VENT AND GRADE