Rheem 96v series Installation Instructions Manual page 49

GENERAL VENTING REQUIREMENTS AND
VENT PIPE SIZING AND MAXIMUM VENT LENGTHS (cont.)
Input
(BTU/H)
Model
(-)96VA0602317MSA
& (-)(-)96MDV060B30A
(-)96VA0702317MSA
& (-)(-)96MDV070B30A
(-)96VA0852521MSA
& (-)(-)96MDV085C50A
(-)96VA1002521MSA
& (-)(-)96MDV100C50A
NOTE: The elbows needed for the vent termination are not counted in these lengths except at
altitudes above 6,000 feet. Above 6,000 feet alternate horizontal vent termination elbows are to be
included in the equivalent vent length.
* This is the recommended maximum number of long sweep elbows for either 2 or 3 inch pipe.
Combinations of long sweep 90s, standard 90s, or 45s may be used, but the manufacturer recommends
the use of long sweep 90s whenever possible because the use of the maximum number of standard 90
and 45 elbows only may result in nuisance furnace outages due to individual installation specifics.
Exceeding the recommended maximum number of elbows may cause nuisance operation of the
pressure switch.
** Not applicable for alternate terminations.
Maximum Equivalent
Length (Feet)
Pipe Size
GUIDELINES
Recommended
Maximum Number
of Elbows*
49