Installation Guide

Rinnai Australia 4 Flue Installation Manual
DIRECT HORIZONTAL FLUE
The Rinnai water heater 'direct' flueing components (FFSBEND, FFWALLTERM, FFWSEAL and FFWPLATE) must
be used for this purpose.
Installation method
1. 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 AS/NZS 5601
see (Fig.6.2 on page 9).
2. Using the dimensions provided in Fig. 9, mark a point
along the appliance centring that is 160mm from the top
of the water heater. This mark forms the centre point for
the 127mm diameter wall penetration.
3. When installing the FFSBEND directly backwards from
the appliance it is necessary to extend the adjustable
mounting brackets of the water heater to a minimum of
45mm to allow for the flue component radius.
4. Make a 127mm wall penetration for the flue. Ensure that
the flue spigot is covered to avoid debris entering the
appliance flue connection.
5. Measure the required length for the horizontal terminal to penetrate the wall
and allow an extra 10mm protrusion from the wall outer surface as shown in
Fig. 10. See the section “Cutting The Flue Components” on page 3 for
correct cutting requirements.
6. Connect the FFWALLTERM to FFSBEND (ensuring components are
pushed 'fully home') and fit associated wall plates/seals as required.
7. To prevent rain water from entering the flue terminal ensure the required 2°
fall to outside is achieved (Fig.2 page 2).
8. Seal the flue around the wall plate using silicon sealant.
This option can be used when the water heater is mounted against an internal wall and flueing needs to extend
horizontally to exit an external wall.
As with the DIRECT HORIZONTAL FLUE option the Rinnai water heater 'direct' flueing components (FFSBEND,
FFWALLTERM, FFWSEAL and FFWPLATE) must be used for this purpose, together with extension pieces
(FFPIPE1000 and FFBEND) components as required.
Total flue length can be up to 9 metres long and a maximum of 3 bends can be used. Horizontal flue is to be installed
with a 2° fall towards the wall terminal to prevent condensation running back into the water heater.
Ensure there is enough space to install the water heater, flue assembly and pipe work. Also ensure that positioning
of the flue terminal complies with the requirements of AS/NZS 5601 (Fig.6.2 on page 9).
Installation method
1. Follow the installation method as described for the DIRECT HORIZONTAL FLUE option, using FFPIPE1000 and
FFBEND components to extend the installation as required.
2. All external joints of the PVC pipe must be glued with approved PVC cement to prevent water entering the flue.
If an accurate wall penetration is made then the FFSBEND will cover the hole and an internal wall
plate will not be necessary.
Ensure the drain tube cap remains fitted in place (Fig. 10).
If this can not be achieved and the length of the flue system exceeds 1.5 metres the condensate
drain pipe will require connection, refer to “CONNECTING CONDENSATE DRAIN” on page 6 for
details.
5
160
Min
45
130
Ø127 Wall penetration
FFSBEND
Fig. 9
Fig. 10
Drain
Tube
Cap
10
EXTENDED HORIZONTAL FLUE