Installation Of The Vent System - Rinnai E50C Installation & Servicing Instructions Manual

6.7.3

Installation of the vent system

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Consult local and state codes pertaining to special building code and fi re
department requirements. Adhere to national code requirements.
Follow the listed maximum length of vent systems, which are boiler output
dependent. The maximum permissible lengths are listed in table 9, chapter 6.7.6.
Decide how to install the exhaust and air intake system. You can choose between:
- Parallel system (see chapter 6.7.2a)
The parallel connection is provided standard initially.
The boiler concentric connection diameter is 2x 3" (80mm). In this case a seperate
supplied kit, with 2 vent adapters 3" should be fi tted on top of the boiler, to which
the venting and air supply system can be fi tted, with or without elbow pieces. The
maximum permissible pipe length is set out in table 9, chapter 6.7.6.
- Concentric system (see chapter 6.7.2b)
The boiler can be converted to a concentric system with an optional adapter (Part
nr. 808000023).
It is possible to use a concentric connection of 3"/5" (80/125 mm). In this case an
optional kit, with 1 concentric fl ue adapter, 3" cover and gaskets should be fi tted
instead of the 3" connections on top of the boiler. See chapter 6.7.3.1 for installation.
The maximum permissible pipe length is set out in table 9, chapter 6.7.6.
- Room Air System (outdoor combustion air)
The boiler can use room air for combustion. If this option is selected the boiler must
be kept in initially standard parallel vent system. A single exhaust pipe can then be
fi tted. It is required to use a room air fi lter (Part nr. 808000025) when using indoor
air for combustion. See chapter 6.7.3.2 for installation. The maximum permissible
pipe length is set out in table 9, chapter 6.7.6.
Rinnai strongly recommends the use of the room air fi lter when a Room Air
System (indoor combustion air) is used.
When the boiler is installed in any of the areas listed in chapter 5.1, "Areas
likely to have contaminants" or any area exposed to the contaminants listed in
chapter 5.1, then sealed combustion is required.
We advise to install a vent system out of the venting system program supplied by
Rinnai (See chapter 19 Parts list Vent system). For further information about the
available components of the venting and air supply system we recommend you
consult Rinnai and the Installation instructions and parts list documentation.
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