12
INSTALLATION INSTRUCTIONS
11) Tighten the upper hose clamp to ensure the vent pipe
is firmly secured and gas tight.
12) Make sure that the lower hose clamp is firmly seated,
secured and gas tight. Gently move the vent pipe side
to side and vertically to ensure that it is securely in
place and that there is no slippage.
POLYPROPYLENE PIPE:
PolyPro
®
InnoFlue
®
Follow the vent pipe manufacturer installation instruc-
tions to assemble the vent pipe. Make sure to secure
the vent pipe sections together using the mean (con-
nector ring or locking band) as specified by the vent
pipe manufacturer.
Vent Termination through-the-wall
PVC & CPVC VENT SYSTEM:
A 45-degree PVC elbow is supplied with the water
heater and shall be used as the termination elbow for
through-the-wall installation when the vent system is
built with PVC pipes. If CPVC is used to build the vent
system, use a 45-degree CPVC elbow that is approved
to be used with the vent system. A wire mesh screen
must be installed in the termination elbow.
POLYPROPYLENE
VENT SYSTEM:
PolyPro
®
InnoFlue
®
A 45-degree Polypropylene elbow, approved to be
used with the vent system shall be used as the termi-
nation elbow for through-the-wall installation. Be sure
to remove the wire mesh screen that was supplied with
the 45-degree PVC elbow and insert it into the poly-
propylene elbow. Push the screen until it locks in place
inside the elbow.
Vent Termination Through-The-Roof
PVC & CPVC VENT SYSTEM:
A 90-degree elbow (not supplied) shall be used as the
termination elbow for Through-the-Roof installation (see
Figure 8). Use a 90-degree elbow that is made of the
same material as the vent system and approved to be
used with this vent system. Be sure to remove the wire
mesh screen that was supplied with the 45-degree PVC
elbow and insert it into the 90-degree elbow. Push the
screen until it locks in place inside the elbow.
POLYPROPYLENE
VENT SYSTEM:
PolyPro
®
InnoFlue
®
A 90-degree Polypropylene elbow, approved to be used
with the vent system shall be used as the termina-
tion elbow for through-the-roof installation. Be sure to
remove the wire mesh screen that was supplied with the
45-degree PVC elbow and insert it into the polypropyl-
ene elbow. Push the screen until it locks in place inside
the elbow.
Restrictor Screens
For Energy Star Models only
A restrictor screen (see Figure 14) is provided with the
following Energy Star models (see Table 4).
Figure 14
Table 4
Natural Gas Propane Gas
UG40-40LFPV1-N2U UG40-38LFPV1-P2U
UG50-40LFPV1-N2U UG50-38LFPV1-P2U
PVC & CPVC VENT SYSTEM:
A black restrictor screen (see Figure 14) is provided with
the following Energy Star models (see Table 4). When the
total equivalent vent length is thirty (30) feet (9.1 m) or less
of two (2) inch (5.1 cm) vent pipe, the wire mesh screen
shall be removed from the vent termination elbow and the
two (2) inch (5.1 cm) restrictor screen must be installed
and glued. Otherwise, a standard wire mesh screen
shall be installed. When using three (3) inch (7.6 cm)
vent pipe, a standard wire mesh (supplied with the water
heater) must be installed in all cases (see Table 5).
POLYPROPYLENE
VENT SYSTEM:
PolyPro
®
InnoFlue
®
A grey restrictor screen (see Figure 14) is provided with
the following Energy Star models (see Table 4). When
the total equivalent vent length is thirty (30) feet (9.1 m)
or less of two (2) inch (5.1 cm) vent pipe, the two (2) inch
(5.1 cm) restrictor screen must be installed. Otherwise, a
standard wire mesh screen shall be installed. To install
Table 5 (for Energy Star Models Only)
VENT DIAMETER TERMINATION 0’ - 30’ 30’ - 50’
2” (5.1 cm) 45˚ ELBOW
VENT DIAMETER TERMINATION 0’ - 30’ 30’ - 140’
3” (7.6 cm) 45˚ ELBOW
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