Rinnai E75CN Instructions D'installation Et De Service page 30

6.6 Condensate drain pipe
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NOTICE
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NOTICE
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NOTICE
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NOTICE
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This boiler produces condensate. Condensate must be drained otherwise the boiler
will not function and can cause property damage.
The condensation drain pipe should be connected to a drain in the building by means
of an open connection. By this means the possibility of drain gases effecting the boiler
is prevented. The drain connection should have a minimum diameter of 1.3" / 32mm.
Install the condensation drain pipe according to the applicable rules and regulations.
If the condensate outlet of the boiler is lower than the public sewage system a
condensate pump must be used.
The condensate produced by the boiler has a pH value between 3 and 4.
Install a neutralization unit if required by the local code. It is recommended, but not
required to install a condensate neutralizer.
Do not drain the condensation water to the external rain gutter because of
the danger of freezing and blockage of the drain.
Before putting the boiler into operation fill the condensate trap with 1.27
cups / 300 ml of water. If the boiler will be installed in a high temperature
installation such as baseboard, then fill the condensate trap with mineral oil
instead of water.
Use materials approved by the authority having jurisdiction. In absence of such
authority, PVC and CPVC pipe must comply with ASTM D1785, F441 or D2665.
Cement and primer must comply with ASTM D2564 or F493.
For Canada, use CSA or ULC certified PVC or CPVC pipe, fittings and cement.
Periodic cleaning of the condensate disposal system must be carried out. See
the Rinnai Boiler Application Manual for further information and for a piping
diagram for the condensate.