Rinnai E110CP - Manuel (Page 31)

Installation & Servicing Instructions Rinnai E-Series
31
This selection can be done with the fi rst digit of Parameter 36.
Domestic hot water preheat ON
= 1x (Factory setting)
Domestic hot water preheat OFF = 2x
See chapter 10 how to change a parameter.
The domestic hot water preheat setting is designed to increase the comfort of the
home owner and reduce water consumption by reducing the wait time for hot water
at the fi xture. This comfort setting will create a slight increase in the gas usage of the
boiler, but this will be offset by the reduction in wasted water at the fi xture.
6.6 Condensate drain pipe
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 local code.
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.
Rianni offers a condensate neutralizer designed to work with all boiler models. The
condensate neutralizer kit comes with all the necessary fi ttings and mounting material.
PVC pipe must be supplied by the installation contractor.
Rinnai part number: 804000074
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 fi ll 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 with a supply temperature of 160°F or above,
fi ll the condensate trap with vegetable 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 certifi ed PVC or CPVC pipe, fi ttings 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.
NOTICE
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NOTICE
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NOTICE
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NOTICE
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