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Venting connection
(VELUX solar water heating system with gas back-up only)
The venting system must be installed properly following all local codes or in the absence of local codes, the
latest edition of the National Fuel Gas Code (ANSI Z223.1-latest edition), or in Canada, The Natural Gas and
Propane Installation Code (B149.1-00 latest edition). Failure to properly install the venting system could result
in propertydamage, personal injury, or death.
Provide adequate air for combustion and ventilation. An insufficient supply of air will cause recirculation of combustion
products resulting in air contamination that may be hazardous to life. Such a condition often will result in a yellow, luminous
burner flame, causing carboning or sooting of the combustion chamber, burners and flue tubes with possible damage to the
water heater. When an exhaust fan is installed in the same room with a water heater, sufficient openings for air must be
provided in the walls. Undersized openings will cause air to be drawn into the room through the chimney, causing recirculation
of combustion products.
WARNING
!
Part 3: Solar water heater system installation – 31
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