Rinnai Australia 5 Installation Manual
VERTICAL FLUE
This option can be used when the water heater is to be flued vertically through the roof.
The Rinnai water heater 'Vertical Flueing Components' (FFROOFCOWL and FFPIPE1000) with extension pieces
(FFPIPE1000) and optional roof seal (FFSEAL) must be used for this purpose.
Total flue length can be up to 9 metres long and have a maximum of 3 bends.
Mount the water heater in an appropriate location ensuring that there is enough space to install the flue assembly
and pipe work. Also ensure that positioning of the flue terminal complies with the requirements of AS5601 (Fig.5.3
on page 9).
Installation method
1. Set plumb bob from the centre of the heater flue outlet to ceiling marking position. Cut 127mm hole in
plasterboard (or a suitable 'oval' for pitched roof applications). Repeat this step for underside of roofing.
2. Calculate the required number and combination of FFPIPE1000 lengths and cut to size as required, see the
section “Cutting The Flue Components” on page 3.
3. Install flue and terminal. Flue to terminate at least 500mm from the end of the flue to the nearest part of the roof,
in accordance with AS5601(Fig. 3 page 2). Seal the roof penetration with an approved flashing.
4. Install roof seal. (Not supplied, if required Rinnai Part No. FFWSEAL).
5. Ensure the flue is fully supported independently of the appliance, by the use of suitable clips or brackets, in
accordance with AS5601. Appropriate standoff brackets are supplied with each FFROOFCOWL and
FFPIPE1000 component.
6. Ensure that the appliance can be removed without causing movement or displacement of the flue, in accordance
with AS5601.
7. Fit the condensate drain tube if required (see “CONDENSATE DRAIN” on page 6).
8. All external joints of the PVC pipe must be glued with approved PVC cement to prevent water entering the flue.
This option allows the water heater to be installed virtually anywhere using a wall (FFWALLTERM) or roof
(FFROOFCOWL) terminal. Extension pieces (FFPIPE1000 and FFBEND) can be mounted horizontally or vertically
as required.
Total flue length can be up to 9 metres long and have a maximum of 3 bends. Mount the water heater in an
appropriate location ensuring that there is enough space to install the flue assembly and pipe work. Also ensure that
positioning of the flue terminal complies with the requirements of AS5601 (Fig.5.3 on page 9).
Installation method
1. Using a combination of the installation procedures covered in the “EXTENDED HORIZONTAL FLUE” on page 4
and “VERTICAL FLUE” on page 5 determine and install the required components.
With vertical flue systems the condensate drain pipe will require connection if the total length of
the flue system exceeds 2 metres. Refer to the section “CONDENSATE DRAIN” on page 6 for
details. If the condensate drain tube is not required to be connected it is important to keep the
drain tube cap in place on the appliance flue spigot. It is only to be removed if the condensate drain
tube is connected. Appliances must not be operated with the drain tube cap removed and with no
condensate drain tube connected.
With combined horizontal and vertical flue systems the condensate drain pipe will require
connection if the total length of the flue system exceeds 1.5 metres. Refer to the section refer to
“CONNECTING CONDENSATE DRAIN” on page 6 for details. If the condensate drain tube is not
required to be connected it is important to keep the drain tube cap in place on the appliance flue
spigot. It is only to be removed if the condensate drain tube is connected. Appliances must not be
operated with the drain tube cap removed and with no condensate drain tube connected.
COMBINED VERTICAL & HORIZONTAL FLUE
(28 pages)
(96 pages)
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