Installation Guide

Rinnai Australia 3 Flue Installation Manual
GENERAL INSTALLATION METHODS
Lubricating Components
A container of "O ring" grease is provided with the flue terminal components (FFWALLTERM and FFROOFCOWL).
To ease assembly, lubricate the “O” ring on the inner pipes of each flue component prior to assembly.
Means of disconnection
The appliance connection shall include a means
of disconnection in accordance with AS/NZS
5601.
Setting Flue Length Dipswitch
Installations can consist of both horizontal and
vertical runs to a maximum length of 9 metres and
with a maximum of three 90° bends.
If flue length exceeds 1.5m, dipswitch 1 of SW1 is
to be switched to the 'OFF' position (Fig. 6).
This increases the combustion fan speed to
overcome the additional friction losses.
Cutting The Flue Components
Using the dimensions shown on page 8, calculate the required number and type of
flue components that are needed to reach from the water heater and the flue
terminal.
When cutting components the outer flue pipe should be cut to the required length
plus 35 mm and the inner flue pipe should be cut to the required length plus 50 mm,
this will ensure that the correct penetration is provided for joining of components.
When inner and outer pipes are re-assembled after cutting the inner pipe should
extend 15mm beyond the end outer pipe (Fig. 7).
Flue Terminals
Multiple Terminal Installations
The terminal clearances in AS/NZS 5601 do not
apply to the Rinnai internal continuous flow water
heaters when installed side by side (Fig. 8).
AGA certification allows for a horizontal
separation of 160 mm for roof terminals and 270
mm for wall terminals.
Each terminal is to be terminated at the same
vertical height.
Use only a silicone based "O" ring seal lubricant. DO NOT use petroleum based lubricants such
as petroleum jelly, as such products may cause deterioration.
The ONLY COMPONENTS that can be cut are as follows: FFPIPE1000, FFROOFCOWL and
FFWALLTERM.
Ensure all ends are cut square (the use of a mitre box will ensure a clean square cut).
Ensure all cut ends are free from debris and burrs.
The flue gases can reach temperatures up to 200°C. The flue terminal is to terminate in a location
not to cause a nuisance, in accordance with AS/NZS 5601.
OFFON
SW1
1 2345678
FFU (Internal) Models Only
Short Flue: Total flue
length less than 1.5 metres
OFFON
SW2
12 3 4 56
OFFON
SW1
1 2345678
FFU (Internal) Models Only
Extended Flue: Total flue
length 1.5 metres or greater
OFFON
SW2
12 3 4 56
Flue Length Dipswitch Settings
Dipswitches
SW1
Dipswitches
SW2
Fig. 6
Fig. 7
15
35
50
Required lengthPenetration
Fig. 8
FFROOFCOWL
FFWALLTERM