Vent System And Air Supply System; Intake / Exhaust Guidelines - Rinnai Q85SN Installation & Service Instructions Manual

6.7 Vent system and air supply system
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NOTICE
6.7.1
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NOTICE
24
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 flue 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 qualified service
agency.
Intake / Exhaust Guidelines
Refer to the specific instructions on your vent product for additional installation
requirements.
• For direct vent boilers, proper reassembly and resealing of the vent-air intake
system.
• You must use vent components that are certified 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 fittings.
• 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 20.
• Do not connect the venting system with an existing vent or chimney.
• Do not common vent with the vent pipe of any other water heater or appliance.
• Vent connections must be firmly 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 difficulties in accessing
the vent system. Warranty does not cover obtaining access to an enclosed
vent system.