Page 31
31-5000728 Rev. 0
Figure 27.
TYPICAL AIR INTAKE PIPE CONNECTIONS
UPFLOW NON-DIRECT VENT APPLICATIONS
Intake
Debris
Screen
(Provided)
NOTE
: Debris screen and elbow may be rotated so that the
screen may be positioned to face forward or to either side.
Figure 28.
TYPICAL AIR INTAKE PIPE CONNECTIONS
HORIZONTAL NON-DIRECT VENT APPLICATIONS
Intake
Debris
Screen
(Provided)
OR
PVC Pipe
Coupling
NOTE
: Debris screen and elbow may be
rotated so that the screen may be
positioned to face forward or to either side.
(Horizontal Right-Hand Air Discharge Application Shown)
If this unit is being installed in an application with
combustion air coming in from a space serviced by an
exhaust fan, power exhaust fan, or other device which
may create a negative pressure in the space, take care
when sizing the inlet air opening. The inlet air opening
must be sized to accommodate the maximum volume
of exhausted air as well as the maximum volume of
combustion air required for all gas appliances serviced
by this space.
CAUTION
Figure 26.
TYPICAL INTAKE PIPE CONNECTIONS IN HORIZONTAL DIRECT OR NON-DIRECT VENT
APPLICATION (RIGHT-HAND DISCHARGE SHOWN)
2”
2”
2”
2”
or
2”
AIR
INTAKE
TRANSITION
3”
*2”
*2”
* When transitioning up in pipe size, use the shortest length of 2” PVC pipe possible.
NOTE
: Exhaust pipe and intake pipe must be the same diameter.