Rinnai M060C Installation And Operation Manual page 56

•
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 plastic hose.
•
The condensate drain pipe (along its
entire length) must be at least 1/2 in.
•
Condensation drain lines installed in
areas that are subject to freezing
temperatures should be wrapped with
an approved supplemental heat
source. Install per manufacturer's
instructions.
•
Slope the condensate drain lines
toward the inside floor 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.
CORRECT
Pipe open to
atmosphere
Water level
56
•
•
•
•
•
NOT
CORRECT
Pipe submerged
in water
Rinnai M-Series Condensing Boiler Combi Manual
If the condensate drain pipe is closed or
stuck, the drain water will come out from the
side hole on the condensate drain pipe
connection.
If a floor 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 flow
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 section "3.6
Accessories" for more information.
The condensate drain pipe should be as short
as possible and have a downward pitch.
Before operation of the boiler, the
condensate collector must be filled with
water.
DO NOT
•
DO NOT connect the condensate drain
line with an air conditioning
evaporator coil drain.
•
Boilers have an integrated condensate
trap. DO NOT install an external
condensate trap.
EXTERNAL TRAP
NOT REQUIRED
Pipe open to
atmosphere
Refer to neutralizer Installation Manual and local
codes for neutralizer installation guidelines.
Image is for reference purposes only.
Neutralizer