01-02
9
28881 Rev G
NOVUS REAR DIRECT VENT
c. Two Elbows
Figure 8 shows various venting configurations
using two elbows to terminate horizontally. A
minimum of a one foot vertical section is required
any time 90° elbows are used when rear venting
the appliance. The maximum vertical run is 20
and the maximum horizontal run is 18.
Figure 8
Two Elbows
E. VENTING
Horizontal Termination - see below.
Vertical Termination - see page 13.
1. HORIZONTAL TERMINATION
a. No Elbows
The maximum horizontal run with no vertical
sections of vent is 18 from the back of the
appliance to the base of the cap. See Figure 6.
Figure 6
Rear Vented Appliances
WARNING - RISK OF FIRE!
The horizontal run of vent must have a 1/4 rise for
every one foot of run towards the termination. Never
allow the vent to run downward. This could cause
high temperatures and may present a fire hazard.
WARNING - RISK OF FIRE!
If you have chosen horizontal termination, be sure
there are no future obstructions from trees, bushes,
snow drifts, etc.
CAUTION:
Provisions shall be made to provide adequate
combustion and ventilation air.
b. 45° Elbow
For corner installations with horizontal venting, a
maximum of one 45° elbow may be used. The
maximum horizontal run following the elbow is
18 to the base of the cap. See Figure 7.
Figure 7
45° Elbow
All manuals and user guides at all-guides.com
