Installation manual

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
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
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
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


FIGURE 9A - U.S.
INSTALLATION
ONLY -
Horizontal or
Vertical Vent
showing Where
to Install the
Condensate
Drain
Connection in
the Horizontal
Vent Run using
factory-provided
4” PVC Cap
7.2 Venting and Combustion Air (cont’d)
7.2.1 Vent/Combustion Air Requirements (cont’d)
12” (305mm)
minimum
24” (610mm)
maximum
Installer-provided 4” Coupling
Slope downward away from
the heater.
Model
UEAS
Field-supplied Fittings as
needed for 1/2” or larger
condensate drain line
Both the vent condensate drain and the heat exchanger condensate drain require a trap and
must go into a sanitary drain. (See Paragraph 7.3, page 26, for requirements on installing
the condensate drain.) All vent and drain parts in this illustration are field supplied.
THIS PVC PIPING ARRANGEMENT APPLIES TO ALL
CANADIAN INSTALLATIONS. In Canada, all PVC vent pipe must
be approved to ULC S636. All PVC venting and drain parts in
this illustration are field supplied. This is an acceptable alternate
PVC piping arrangement for installations in the United States.
4” diameter pipe
FIGURE 8B -
CANADIAN
OR U.S.
INSTALLATION
Vertical Vent
showing Where
to Install the
Condensate
Drain
Connection
FIGURE 8A - U.S.
INSTALLATION
ONLY - Vertical
Vent showing
Where to Install
the Condensate
Drain
Connection
using factory-
provided 4”
PVC Cap
7.0 Mechanical
(cont’d)
Form I-UEAS, Page 14