Installation Manual

58 Rinnai I-Series Condensing Boiler Solo Manual
• Do not plumb the condensate drain
with the pressure relief valve; both
must be plumbed independently to
drain.
• All condensate must drain and be
disposed of according to local codes.
• Use only corrosion resistant materials
for the condensate drain lines such as
PVC pipe or plasc hose.
• The condensate drain pipe (along its
enre length) must be at least 1/2 in.
• Condensaon drain lines installed in
areas that are subject to freezing
temperatures should be wrapped with
an approved supplemental heat
source. Install per manufacturer’s
instrucons.
• Slope the condensate drain lines
toward the inside oor drain or
condensate pump.
• The end of the condensate drain pipe
should be open to the atmosphere.
The end should not be under water or
other substances.
• If the condensate drain pipe is closed or
stuck, the drain water will come out from
the side hole on the condensate drain pipe
connecon.
• If a oor drain is not available or the drain is
above the level of the condensate drain, a
condensate pump should be installed.
• A condensate neutralizer kit is available
from Rinnai. The kit allows condensate to
ow through neutralizing media that raises
the pH of the condensate to a level that will
help prevent corrosion of the drain and
public sewer system. Refer to secon “3.6
Accessories” for more informaon.
• The condensate drain pipe should be as
short as possible and have a downward
pitch.
• Before operaon of the boiler, the
condensate collector must be lled with
water.
CORRECT
Pipe open to
atmosphere
Pipe submerged
in water
NOT
CORRECT
Water level
Refer to neutralizer Installaon Manual
and local codes for neutralizer installaon
guidelines.
Image is for reference purposes only.
EXTERNAL TRAP
NOT REQUIRED
DO NOT
• DO NOT connect the condensate drain
line with an air condioning
evaporator coil drain.
• Boilers have an integrated condensate
trap. DO NOT install an external
condensate trap.
Pipe open to
atmosphere
Neutralizer