Part 3: Venting, Combustion Air & Condensate Removal; General; Approved Materials For Exhaust Vent And Intake Air Vent; Exhaust Vent And Intake Air Vent Pipe Location - Rheem AdvantagePlus HE55-100N Use & Care Manual

PART 3: VENTING, COMBUSTION AIR & CONDENSATE REMOVAL
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WARNING
This vent system will operate with a positive pressure
in the flue gas vent pipe. Do not connect vent
connectors serving appliances vented by natural
draft into any portion of mechanical draft systems
operating under positive pressure.
Follow the venting instructions below carefully.
Failure to do so may result in severe personal injury,
death, or substantial property damage.
A. GENERAL
1. Install the water heater venting system in accordance
with these instructions and with the National Fuel
Gas Code, ANSI Z223.1/NFPA 54, CAN/CGA B149.1,
and/or applicable provisions of local building codes.
2. This water heater is a direct vent appliance and is
listed as a Category IV appliance with Underwriters
Laboratories, Inc. VENT AND INTAKE AIR VENT
B. APPROVED MATERIALS FOR EXHAUST VENT
AND INTAKE AIR VENT
Table 3-1
APPROVED PLASTIC EXHAUST VENTING MATERIAL
MATERIAL
PVC SCHEDULE 40 / 80
PVC -DWV
CPVC SCHEDULE 40 / 80
*Note: Cellular Foam Core Pipe
can only be used on INTAKE
piping.
Table 3-2
APPROVED PLASTIC INTAKE VENTING MATERIAL
MATERIAL
PVC SCHEDULE 40 / 80
CPVC SCHEDULE 40 / 80
PVC DWV
PVC-CELLULAR FOAM
CORE*
*Note: Cellular Foam Core Pipe
can only be used on INTAKE
piping.
Table 3-3
APPROVED PLASTIC CONDENSATE PIPING MATERIAL
MATERIAL
PVC SCHEDULE 40 / 80
STANDARDS FOR INSTALLATION IN:
UNITED STATES CANADA
ANSI /ASTM D1785 ULC-S636
ANSI /ASTM D2665 ULC-S636
ANSI /ASTM F441 ULC-S636
STANDARDS FOR INSTALLATION IN:
UNITED STATES AND CANADA
ANSI /ASTM D1785
ANSI /ASTM F441
ANSI /ASTM D2665
U.L. LISTED
STANDARDS FOR INSTALLATION IN:
UNITED STATES AND CANADA
ANSI /ASTM D1785
Table 3-4
APPROVED PIPE CEMENT AND PRIMER FOR PLASTIC PIPE
MATERIAL
CEMENT AND PRIMER
CPVC
PVC
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Do not use Foam Core Pipe in any portion of the
exhaust piping from this water heater. Use of Foam
Core Pipe may result in severe personal injury, death,
or substantial property damage.
C. EXHAUST VENT AND INTAKE AIR VENT PIPE
LOCATION
1. Determine exhaust vent location:
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Both exhaust and intake air vents must exit from the
same side of the building to assure correct appliance
operation.
a. The vent piping for this water heater is approved
for zero clearance to combustible construction.
b. See illustration within this section of clearances
for location of exit terminals of direct-vent venting
systems.
c. This water heater vent system shall terminate at
least 3 feet (0.9 m) above any forced air intake
located within 10 ft (3 m). Note: this does not
apply to the combustion air intake of this direct-
vent appliance.
d. Provide a minimum of 1 foot distance from any
door, operable window, or gravity intake into any
building.
e. Provide a minimum of 1 foot clearance from
the bottom of the exhaust above the expected
snow accumulation level. Snow removal may be
necessary to maintain clearance.
f. Provide 4 feet horizontal clearance from
electrical meters, gas meters, gas regulators,
relief equipment, exhaust fans and inlets. In no
case shall the exit terminal be above or below
the aforementioned equipment unless the 4 foot
horizontal distance is maintained.
g. When adjacent to a public walkway, locate exit
terminal at least 7 feet above grade.
h. Do not locate the exhaust directly under roof
overhangs to prevent icicles from forming.
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STANDARDS FOR INSTALLATION IN:
UNITED STATES CANADA
ULC-S636 approved
ANSI/ASTM F493
primer and adhesive
system, for ULC-S636
ANSI/ASTM D2564
pipe and fittings
WARNING
WARNING