Flueing - Rheem 864 Series Owner's Manual And Installation Instructions

FLUEING

SECONDARY FLUE
A secondary flue must be installed with an indoor water heater to discharge combustion products to outside
the building. The water heater MUST ONLY be installed with certified Rheem coaxial flue components carrying
the label opposite. DO NOT use any other type of flue parts.
Where more than one water heater is installed, each water heater must
be individually flued using certified Rheem coaxial flue components.
A common flue system MUST NOT be used.
The installation of the secondary flue must be carried out by a qualified person and be in accordance with the
Gas Installations Standard AS 5601 or AS/NZS 5601.1, as applicable under local regulations, local authority
requirements and the installation instructions. A charge will be made for any service related call due to the
installation of the flue system not complying with these installation instructions.
The water heater must be flued separately from all other appliances and flued to the outdoors. Minimum
clearance requirements apply from the flue terminal in accordance with AS 5601 or AS/NZS 5601.1 (refer also
to "Flue Terminal Location" on page 61). Do not install the flue to discharge into a chimney. There is no
requirement on the flue to maintain a minimum distance from combustible materials.
Warning: Where the flue penetrates through walls, floors or ceilings, the penetration must comply with
local regulations for fire rating. The coaxial flue system does not have nor provides a fire rating.
The water heater flue may be terminated either horizontally with a Horizontal Flue Terminal or vertically with a
Vertical Flue Terminal. The secondary flue must be self-supporting and not impose a load on the water heater.
Flue runs must be adequately supported along both horizontal and vertical runs. The maximum recommended
unsupported span for a horizontal run should be no more than 2.0 m. Support isolation hanging bands should
be used. Do not use wire. Wall Brackets (PN 295129) are available and should be used for vertical runs. The
coaxial flue components are to be connected together using the screws provided. The flue outside diameter is
127 mm.
Warning: Never operate the water heater unless it has been installed in accordance with the installation
instructions. Failure to install the water heater in accordance with the installation instructions, properly flueing
the water heater to the outdoors and ensuring it has an adequate air supply, will result in unsafe operation of
the water heater, possibly causing fire, explosion, serious injury and asphyxiation from carbon monoxide.
A sealing gasket is located at one end of the inner flue. Check all flue components to ensure the gasket is in
place and properly seated. DO NOT install if any gaskets are missing. Contact Rheem Service or their nearest
Accredited Service Agent / Centre if the gasket is missing.
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