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Continuous flow internal flueing guide: 11748-E 05-15
175 mm (HDi200)
230 mm (EFi250)
Female flue spigot - part 4913
Male flue spigot - part 4914
Flue spigots
The Rinnai INFINITY internal water heater models noted on the front cover have a FEMALE flue
spigot attached to the top of the unit. This differs to the older units, which have a MALE flue spigot
attached. This is relevant if you are trying to fit a newer model Rinnai INFINITY* into ‘old’ flueing—
the male flue spigot will need to be ordered. Please contact Rinnai for further information.
Condensate
The condensate trap collects any condensate from the flue and prevents condensate from
entering the water heater and causing damage.
Condensate is a by-product of gas combustion and is mildly acidic. For this reason copper tube
and fittings must not be used as it will corrode. Instead Rinnai recommends plastic pipe and
fittings such as UPVC or PE.
Condensate: HD200 and XR26 internal models
A condensate trap kit (FFSSCOND) is required for flue lengths over 1.5 m. If flueing is less than
1.5 m, the flue spigot on the top of the unit is capped using the drain cap tube supplied with the
unit. The drain cap is only removed if the condensate kit is connected..
Condensate: EFi250 internal models
The FFSSCOND is not needed for the EFi250 as there is a different method for draining
condensate (that doesn’t require the additional FFSSCOND component). For further information
refer to the Rinnai INFINITY installation guide, section ‘EF models: Condensate Drain’.
Appliance spigot centres
95~135 mm (HDi200)
155~195 mm (EFi250)
Flue spigot centreline
from edge of appliance
Flue spigot centreline
from wall
* Not applicable if installing an EFi250 model, this MUST USE the FFSS (stainless steel) flue components detailed in this guide.
The wall mounting brackets are adjustable by
40 mm. Adjusting the mounting bracket also
adjusts the spigot centre.
