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Flue Installation
Install the venting termination according to the diagrams and instructions below.
WARNING
If the condensate collector is not used, the drain
pipe must be capped to prevent exhaust gases
and condensate from entering the building. The
cap is supplied on the appliance. In such an
instance slope the venting 1/4" per foot away
from appliance according to vent
manufacturer's installation instructions.
Horizontal Termination using Condensate Collector
Slope the venting 1/4" per foot toward
the appliance according to the vent
manufacturers installation instructions.
Dispose of condensate per local codes.
Condensate
Condensate Collector
18
Horizontal Termination without using the Condensate Collector
3 in (75 mm)
minimum
Bracket
Securing Screw
Demand Duo™ 80
* The condensate collector must be used in
horizontal terminations if a vertical rise in
the vent system exceeds 5ft.
Maximum Height *
5 feet (1.52 m)
Vertical Termination
(condensate collector must be used in all installations)
3 in (75 mm)
minimum
To adjust the condensate collector position or to
replace the female vent top with a male vent top:
1. Loosen the 4 screws at the rear bracket
2. Slide the bracket away from the female vent top.
3. Remove the 4 screws attaching the female vent top
to the water heater.
4. Lift up the female vent top and reposition as desired
(or replace with a male vent top).
5. Install the 4 screws at the vent top and tighten the 4
screws at the bracket.
Secure the first vent component to the water heater
with one self-tapping screw at the hole located above
the condensate collector.
Regions of cold climate will create more
condensate in the vent system. The
condensate collector should be used in
cold climates.
If more than one elbow is used in the
vertical section the condensate collector
must be used.
3 in (75 mm)
minimum
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