Installation Manual

36 Rinnai I-Series Condensing Boiler Solo Manual
Twin Pipe Vercal Terminaon
of Mulple Boilers
12 in. (0.30 m) minimum
12 in. (0.30 m)
minimum
above
combuson air
opening
Roof
12 in. (0.30 m) above
grade or ancipated
snow level
12 in. (0.30 m)
minimum
Combuson
Air
Exhaust
Vent Sizes:
• 2 in. PVC
• 2 in. (60 mm) PP
• 3 in. PVC
• 3 in. (80 mm) PP
Vent Lengths: 65  (20 m) 150  (46 m)
• 45° elbow is equivalent to 3  (1 m)
• 90° elbow is equivalent to 6  (2 m)
ACCEPTABLE ACCEPTABLE NOT ACCEPTABLE
90° Elbows,
Long Sweep
90° Elbows,
Short Sweep
90° Elbows,
Close Turn
Vent length includes the addional venng, ngs
and terminaons.
Sidewall Clearances
12”
4”
Combuson Air
Intake
Exhaust
8”
Horizontal Vent and
Combuson Air Piping
Indicates area in which
intake cannot be located.
Intake
Ground/Grade/Snow Level
60 in.
(152 cm)
Min.
12 in.
(30 cm)
Min.
Intake
Exhaust
Intake
12 in.
(30 cm)
Min.
12 in.
(30 cm)
Min.
12 in.
(30 cm)
Min.
12 in.
(30 cm)
Min.