20
Exhaust Venting Installation
This water heater must be properly vented for removal of
exhaust gases to the outside atmosphere. Correct instal-
lation of the vent pipe system is mandatory for the safe and
efficient operation of this water heater and is an important
factor in the life of the unit.
Vent pipe installation must be performed in accordance
with state and local codes, or in the absence of such, the
latest edition of National Fuel Gas Code, NFPA 54/ANSI
223.1. Canadian installations must be performed in accor-
dance with CAN/CGA-B149.
VENT PIPE MATERIAL
Eternal Hybrid Water Heater is a gas burning appliance
with fan-assisted exhaust. The appliance must be vented
with 4" Category III special venting, which is air tight to
prevent leakage of exhaust gases.
The appliance must be vented separaely from all other
appliances. The following type of non-metallic vent can be
used:
PVC (schedule 40, ASTM-D1785)
CPVC (schedule 40, ASTM-D2846)
ABS (schedule 40, ASTM-D2661)
Category III metallic venting may be used with the appliance,
we recommend:
ZFlex line of venting by Z-Vent with adaptor NA2SVSNA04
GVent line of venting by Grand Hall
Sealant (silicon based) is recommended with metallic vent-
ing to ensure proper seal.
VENT PIPE INSTALLATION
The following guidelines should be followed when install-
ing the exhaust outlet piping:
- Venting should be as direct as possible with a minimum
number of pipe fittings.
- Venting diameter must not be reduced unless specially
noted in the installation instructions.
- Support all horizontal pipe runs every four feet according
to local codes.
- Vents run through unconditioned spaces where below
freezing temperatures are expected should be properly in-
sulated to prevent freezing. For horizontal runs, wrap the
vent pipe with self-regulating 3 or 5 watt heat tape. The heat
tape must be U.L. listed and installed per the manufacturer's
instructions.
- Do not connect this venting system with an existing vent or
chimney.
- Do not connect common vent with the vent pipe of any
other water heater or appliance.
The exhaust outlet piping and termination may be installed
in one of the following terminations:
1. Standard Horizontal (see page 22)
2. Vertical (see page 22)
All pipe, fitting, pipe cement, primers and procedure must
conform to American National Standard Institute and Ameri-
can Society for Testing and Materials (ANSI/ASTM) stan-
dards in the United States.
CEMENTING PVC, ABS or CPVC PIPE and FITTING
All primers, cleaners and cements must meet all local
codes and applicable standards of the American Society
for Testing Materials.
Before using primers, cleaners and cements, stir or shake,
making sure contents are liquid. Do not use if found to be
lumpy or jelly-like.
1. Cut pipe ends squarely removing all burrs and dirt.
2. Dry fit pipe and fittings to be connected for proper fit.
3. Clean pipe and fitting with a primer/cleaner.
4. Apply a thin coat of cement to fitting, avoiding pudding
inside.
5. Apply a liberal coat of cement to pipe leaving no voids.
6. Quickly assemble parts while cement is fluid.
7. Push pipe completely into socket of fitting, turning as
it goes until it bottoms.
8. Hold pipe and fitting together for 30 seconds. Then
carefully clean off excess with a cloth.
Allow connections a sufficient time to cure before
disturbing.
9. Remember that vent pipes must be adequately and
securely supported.
CUTTING OPENING THROUGH AN OUTSIDE WALL
AND TERMINATOR INSTALLATION
The 4" PVC, ABS or CPVC Schedule 40 vent pipe can be
run from the water heater through the wall or from the
wall to the water heater, whichever is most convenient.
The vent pipe must extend a minimum of 1.5" through
the exterior wall. Note that inside collars must be slipped
over the vent piping before locating the pipe through the
wall.
Before securing the inside and outside collars to the
wall, use a silicone sealer between pipe and opening to
ensure water and air tight seal.
To prevent condensate from collecting in the venting sys-
tem slope the vent at a downward pitch of 1/4" per 12 ft.
with condensate trap.
This water heater has been design certified by CSA Intern-
ational for use with the specified listed plastic vent pipe.
NOTICE
!
!
For installations in Canada,field supplied plastic
vent piping must comply with CAN/CGA B149 1
(latest edition)and be certified to the Standard For
Type BH Gas Venting Systems,ULC S636 Com-
ponents of this listed system shall not be inter-
changed with other vent systems or unlisted pipe/
fittings. All plastic components and specified prim-
ers and glues of the certified vent system must be
from a single system manufacturer and not inter-
mixed with other system manfacturer's vent sys-
tem parts.
The supplied vent connector and vent termination
are certified as part of the water heater.
puddling
