14
30484 Rev Q
09/04
MAXUS DIRECT VENT HEATER
c.
Vent Lengths for Rear Vent
1)
No Elbows
The maximum horizontal run, with no vertical
sections of vent, is 24 in. from the back of the
appliance to the base of the cap. See
Figure 13.
2)
A 45 degree Elbow
For corner installations with horizontal
venting, a maximum of one 45 degree elbow
may be used. The maximum horizontal run
following the elbow is 24 in. to the base of
the cap and will include a 45 degree elbow
and a termination cap. See Figure 14.
Figure 13
No Elbows
3)
Two Elbows
Elbows used on rear vented venting
configurations should be either a 90 degree
elbow or a 45 degree elbow.
A starter elbow
cannot be used in any rear-vented
configuration.
Figure 15 shows various
venting configurations using two elbows to
terminate horizontally.
Figure 14
One 45 degree Elbow
4)
Three Elbows
Elbows used on rear vented configurations
should be either a 90 degree elbow or a
45-deg elbow.
A starter elbow cannot be
used in any rear-vented configuration.
Figure 16 shows various venting
configurations using three elbows to
terminate horizontally.
Figure 15 - Two Elbows
Figure 16 - Three Elbows
Starter elbows cannot
be used in any rear-
vented configuration.