6.7 Vent system and air supply system
| 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 |
i NOTICE | 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. |
6.7.1Intake / Exhaust Guidelines
Refer to the specific instructions on your vent product for additional installation requirements.
• 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 19.
• 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. |
i NOTICE | 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. |
Installation & Servicing Instructions Rinnai
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