Rheem HE119-130LP Use And Care Manual page 9

or two 45 degree elbows. Then use a 4" x 3" PVC or 4"
x 3" ABS reducing coupling. Then proceed with PVC 4"
NON FOAM CORE pipe and fittings for both the intake
and exhaust piping. On 4" piping you may go an addi-
tional 125 equivalent feet of pipe and fittings, combined
total length. The 4" fittings have a friction loss allowance
as follows:
4" 90 degree = 3' and a 4" 45 degree = 1'.
The total maximum venting length can be 125', plus the
first 10' of each 3", and a maximum fitting allowance of
the 3", total two 90 degree or four 45 degree before
increasing to 4". Total equivalent would be 30' of 3" plus
125' of 4". Never use different pipe sizes for intake and
exhaust.
SPECIAL VENTING INSTRUCTIONS USING 2" VENT
PIPE
(ONLY MODELS WITH INPUTS OF 100,000 BTU AND 130,000 BTU
ARE CERTIFIED FOR 2" VENTING) HE45-100, HE45-130, HE80-130,
HE119-130
For inlet air supply, top pipe on the right of the shroud,
use 2 inch PVC schedule 40. It is very important that you
plan the location properly, to eliminate long pipe
runs and excessive fittings. Inlet pipe size must not be
reduced. Do not combine the inlet air with any other inlet
pipe, including an inlet to an additional similar appliance.
The joints must be properly cleaned, primed and cement-
ed. The piping must also be properly supported as per
local and national standard plumbing codes. It is impor-
tant that the piping be clean and free from burs, debris,
ragged ends and particles of PVC.
For exhaust piping, lower pipe on the right of the shroud,
use 2 inch PVC schedule 40 NON FOAM CORE. Use 2
inch ABS NON FOAM CORE or 2 inch CPVC schedule
40 or 80 only when required to meet local venting codes.
Exhaust piping should be sloped back to the connection
on the AdvantagePlus, at least 1/4 inch per foot of pipe,
to remove the condensate that forms within the pipe. The
total combined length of pipe, (inlet air piping plus
exhaust piping) including allowances for elbows, should
not exceed 85 equivalent feet. The total combined length
of pipe, including allowances for elbows, should not be
less than 22 equivalent feet (minimum length of 12 feet of
piping, including allowances for elbows, on the inlet and
the exhaust). Choose your vent termination locations
carefully. You must make certain that exhaust gas does
not re-circulate back into the air inlet pipe. You must
place your vent terminations in an open area, according
to the venting guidelines section on page 8.
PIPE / FITTINGS WHEN USING 2" VENT PIPE
All inlet air and exhaust venting may use standard PVC
schedule 40 piping, conforming to ASTM D-1785, and fit-
tings conforming to ASTM D-2466, or ABS pipe conform-
ing to ASTM D-3965 and ASTM D-2661, and fittings con-
forming to ASTM D-3311 and ASTM D-2661. (NEVER
use cellular foam core pipe on exhaust piping)
FOR LONGER VENT LENGTHS WHEN USING
2" VENT PIPE
You may use 3 inch venting on both the intake and
exhaust to lower the pressure drop and provide addition-
al vent length. It is imperative when using 3 inch venting
to follow these instructions carefully. For longer vent
lengths, the first 10 feet of both the intake and exhaust
piping must be 2 inches. For the first 10 foot use 2 inch
PVC schedule 40 NON FOAM CORE, 2 inch ABS NON
FOAM CORE or 2 inch CPVC schedule 40 or 80 plus one
90 degree or two 45 degree elbows. Then use a 2" x 3"
reducing coupling of like material. Then proceed with 3
inch PVC schedule 40 NON FOAM CORE, 3 inch ABS
NON FOAM CORE or 3 inch CPVC schedule 40 or 80
pipe and fittings for both the intake and exhaust piping.
On 3 inch pipe you may go an additional 125 equivalent
feet of pipe and fittings, combined total length. The total
combined equivalent vent length would be 30 equivalent
feet of 2-inch vent and 125 equivalent feet of 3-inch vent,
for a maximum equivalent vent length of 155 feet. Never
use different pipe sizes for intake and exhaust.
CLEANER / CEMENT
Cement for all venting must be ALL PURPOSE Cement,
and must conform to ASTM D-2235, D-2564 and F-493,
and cleaner for the piping and fittings must conform to
ASTM F-656.
NOTE:
THE METHODS DESCRIBED ARE SUGGESTED
GENERIC METHODS ONLY.
OBSERVATIONS AND SIZING MAY REQUIRE ALTER-
NATE INSTALLATION METHODS.
FACTORY WITH SPECIFIC JOB REQUIREMENTS
FOR ADDITIONAL RECOMMENDATIONS.
VERY IMPORTANT SET-UP INSTRUCTIONS!
IF YOU HAVE A COMBUSTION ANALYZER, THE FOL-
LOWING RATINGS WILL BE VERY HELPFUL IN SET-
TING UP YOUR ADVANTAGE PLUS:
FOR NATURAL GAS -
CO 2 reading should be between (9 1/2% – 10%)
O 2 reading should be between (3 1/2% – 4 1/2%)
CO reading should be under 10 PPM
FOR PROPANE GAS -
CO 2 reading should be between (10 1/2% – 11 1/2%)
O 2 reading should be between (3 1/2% – 4 1/2%)
CO reading should be under 10 PPM
9
SPECIFIC JOB SITE
CONSULT THE