10
enclosed area, make sure to leave at least one (1) inch (2.5 cm)
clearance around the piping for air circulation.
FOR PVC AND CPVC PIPING:
Make sure that all horizontal runs have a minimum rise
of 1/4 inch per foot (21 mm/m) of run (see Figure 2).
Horizontal runs of vent pipe must be supported every three
(3) feet (91 cm) and vertical runs of vent pipe must be sup-
ported every five (5) feet (1.5 m).
FOR POLYPROPYLENE PIPE FROM CENTROTHERM
(Innoflue single wall vent system):
InnoFlue
®
Make sure that all horizontal runs have a minimum rise of 5/8
inch per foot (56 mm/m) of run. Follow instruction of the vent
pipe manufacturer for proper vent support.
FOR POLYPROPYLENE PIPE FROM DURAVENT
(Polypro single wall gas vent system):
PolyPro
®
Make sure that all horizontal runs have a minimum rise of
1/4 inch per foot (21 mm/m) of run. Follow instruction of the
vent pipe manufacturer for proper vent support.
Pipe Assembly
WARNING
ALWAYS read and abide by all safety messages printed on
the primer, cleaner, and cement containers. Primer, cleaner,
and cements are extremely flammable. DO NOT store these
products near heat, sparks, or flames. They are harmful, or
fatal if swallowed. Their vapours are also harmful. They may
irritate eyes and can be absorbed through the skin. Failure
to follow these instructions can result in property damage,
personal injury, or death.
PVC & CPVC VENT SYSTEM:
Primers, cleaners, solvents, and cements are available for
PVC and CPVC pipe/fittings. When cementing the pipe/
fittings, make sure to use only materials approved for the
type of pipe/fittings to be installed and in all cases, follow
the vent pipe/fittings manufacturers joining instructions.
Never use all-purpose cements, commercial glues, and
adhesives to join PVC or CPVC pipe/fittings.
1) Adjust the vent pipe length to properly fit the vent system
adaptor on the blower assembly outlet.
2) Cut pipe ends squarely, removing all burrs and dirt.
3) Dry fit the pipe/fitting to be connected to make sure they
fit properly.
4) Clean the pipe/fitting with the proper primer or cleaner.
5) Apply a thin coat of cement to the fitting, avoiding pud-
dling inside.
6) Apply a liberal coat of cement to the vent pipe, leaving no
voids.
7) QUICKLY assemble parts while cement is fluid! If you wait
too long, re-coat pipe/fitting.
8) Push the vent pipe completely into the coupling,
turning as it goes until it bottoms out.
9) Hold pipe and fitting together for thirty (30) seconds. Then
carefully clean off any excess material with a cloth. Allow con-
nections a sufficient time to cure before disturbing.
10) Loosen the upper hose clamp on the rubber transition fitting
and fully insert the CPVC pipe of the vent system adaptor
(one (1) inch [2.5 cm] deep). Do not apply cement to the
rubber transition fitting.
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 instructions
to assemble the vent pipe. Make sure to secure the vent
pipe sections together using the mean (connector ring or
locking band) as specified by the vent pipe manufacturer.
Vent Termination Through-The-Wall
PVC & CPVC VENT SYSTEM:
Two (2) 90-degree PVC elbows are supplied with the water
heater and shall be installed at the end of the vent and
air intake piping to serve as the termination for through-
the-wall installation when the vent system is built with
PVC pipes. If CPVC is used to build the vent system, use
90-degree CPVC elbows that are approved to be used with
the vent system. A wire mesh screen must be installed in
the termination elbows.
POLYPROPYLENE VENT SYSTEM:
PolyPro
®
InnoFlue
®
A 90-degree Polypropylene elbow, approved to be used
with the vent system shall be used as the termination
elbow for through-the-wall installation. Be sure to remove
the wire mesh screen that was supplied with the 90 degree
PVC elbow and insert it into the polypropylene elbow. Push
the screen until it locks in place inside the elbow.
Vent Termination Through-The-Roof
PVC & CPVC VENT SYSTEM:
Two (2) 90-degree PVC elbows are supplied with the water
heater and shall be installed at the end of the vent and air
intake piping to serve as the termination for through-the-
roof installation when the vent system is built with PVC
pipes (see Figure 3). If CPVC is used to build the vent
system, use 90-degree CPVC elbows that are approved to
INSTALLATION INSTRUCTIONS
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