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22 Rinnai Corporation RHFE-750ETRA
Venting
5. Lock the ties
Pulling hard on the left and right hand ties, clip
the ties over the notches inside the sleeve. You
should be able to pull the ties 2 or 3 notches past
the starting point. Cut the ties, leaving about 3/4
inch (20 mm) past the notch. Bend the ties back
into the sleeve and parallel to the wall.
6. Attach Inside Connection Assembly
Push the assembly into the terminal tube.
Attach the inside connection with 3 screws. The
inside connection can still be turned if necessary.
Locking ties
Sleeve
II. Extended Venting - Horizontal and Vertical Terminations
• Only vent components that are certified and listed
with this appliance may be used.
• The maximum length is 33 feet (10 m) with a
maximum of 3 elbows.
• The venting length (horizontal and vertical) that is
draining back toward the appliance is limited to
8.2 feet (2.5 m). A condensate collector must be
installed at this point if more venting length is
needed. Dispose of condensate per local codes.
The condensate trap must contain a minimum of 3
inches (75 mm) of water.
• Slope any horizontal venting 1/4 inch per foot (19
mm / m), towards the outside so that it can drain
out of the termination -OR- slope 1/4 inch per foot
(19 mm / m), toward the appliance which has a
condensate tray.
• Do not combine vent components from different
manufacturers.
• The vent system must vent directly to the outside
of the building and use outside air for combustion.
• Venting should be as direct as possible with a
minimum number of pipe fittings.
• Avoid dips or sags in horizontal vent runs by
installing supports per the vent manufacturer’s
instructions.
• Support horizontal vent runs every four feet and
all vertical vent runs every six feet or in
accordance with local codes.
• Vent diameter must not be reduced.
• Do not connect the venting system with an
existing vent or chimney.
• Do not common vent with the vent pipe of any
other appliance.
• The horizontal termination must not be used as a
vertical termination; the vertical termination must
not be used as a horizontal termination.
• For vertical venting, an additional 2 inch elbow,
part number 308000010, is required and available
from Rinnai for connecting the exhaust to the
adapter.
• Refer to the instructions of the vent system
manufacturer for component assembly
instructions.
• If the vent system is to be enclosed, it is
suggested that the design of the enclosure shall
permit inspection of the vent system. The design
of such enclosure shall be deemed acceptable by
the installer or the local inspector.
NOTICE
If it becomes necessary to access an enclosed vent
system for service or repairs, Rinnai is not responsible
for any costs or difficulties in accessing the vent
system. Warranty does not cover obtaining access to
an enclosed vent system.