Vent System And Air Supply System; Intake / Exhaust Guidelines - Rinnai E75CN Installation & Servicing Instructions Manual

6.7 Vent system and air supply system

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NOTICE
6.7.1
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NOTICE
32
Provisions for combustion and ventilation air must be made in accordance with section,
Air for Combustion and Ventilation of the National Flue Gas Code, ANSI Z223.1,
or Sections 7.2, 7.3 of 7.4 of CAN/CGA B149.1, Installation Codes, or applicable
provisions of the local building codes.
- Do not store chemicals near the boiler or in rooms where the air is being supplied
to the boiler. See the list on page 10.
- Do not allow the fl ue gases of other appliances to enter the boiler.
- Keep cabinet free of moisture
In the event that the system has actuated to shut off the main burner gas, do
not attempt to place the boiler in operation. Contact a qualifi ed service agency.

Intake / Exhaust Guidelines

Refer to the specifi c instructions on your vent product for additional installation
requirements.
• For direct vent boilers, proper reassembly and resealing of the vent-air intake
system is required.
• You must use vent components that are certifi ed and listed with this model.
• Do not combine vent components from different manufacturers.
• Venting should be as direct as possible with a minimum number of pipe fi ttings.
• Avoid dips or sags in horizontal vent runs by installing supports per the vent
manufacturer's instructions.
• Support horizontal vent runs every four feet and all vertical vent runs every six
feet or in accordance with local codes.
• Vent diameter must not be reduced.
• The boiler is unsuitable to install on a common vent installation, see also chapter 19.
• Do not connect the venting system with an existing vent or chimney.
• Do not common vent with the vent pipe of any other combi boiler or appliance.
• Vent connections must be fi rmly pressed together so that the gaskets form an air
tight seal.
• Refer to the instructions of the vent system manufacturer for component assembly
instructions.
• If the vent system is to be enclosed, it is suggested that the design of the enclosure
shall permit inspection of the vent system. The design of such enclosure shall be
deemed acceptable by the installer or the local inspector.
If it becomes necessary to access an enclosed vent system for service or
repairs, Rinnai is not responsible for any costs or diffi culties in accessing
the vent system. The limited warranty does not cover obtaining access to an
enclosed vent system.