Evolve 950 Installation Guide: 12471-A 01-14
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Flueing options
Flueing notes
For all installations a Rinnai flue system
MUST BE used. Detailed flue instructions
are provided with the flue kits.
Termination point
Flue is not to terminate under floors or in
a roof space.
Condensate
A condensate trap is required for vertical
in-wall and through-wall vertical flue
installations to ensure condensate
generated during combustion is trapped
and prevented from entering the chamber
of the heater.
For horizontal, and down and out
installations, there must be a continuous
fall of at least 2° to the wall terminal. This
equates to approximately 20 mm per
metre to the termination point to drain
the condensate. For direct flueing, direct
flue kits A and B have an inbuilt 2° fall.
Rear external wall*
Through-wall vertical
Vertical in-wall
False wall
Flue components:
- Direct A flue (R2731), or
- Direct B flue (R2732), or
- Direct flue (ASPDFK)
This flue configuration could
be up to 8.5 m long (no
bends).
A
B
False wall
A
flue components:
- Adaption flue (EVOKIT03)
- Coaxial pipe (ESPIPE900)
- Roof cowl (ESROOFCOWL)
A
flue configuration could have a
flue length of 7 m and contain one
90
°
bend—the 90
°
bend would
be the flue transition (EVOKIT03).
B
flue components:
- Adaption flue kit (EVOKIT03)
- Coaxial pipe (ESPIPE900)
- Bend 2 x 45
°
(ESBEND x 1)
- Roof cowl (ESROOFCOWL)
B
flue configuration could have a
flue length of 6.5 m and contain
two bends—the first 90
°
bend
would be the flue transition
(EVOKIT03), and the second 90°
bend would be the two 45
°
bends
(ESBEND).
False wall
A
B
A
flue components:
- Direct flue (ASPDFK)
- Coaxial pipe (ESPIPE900)
- Bend 1 x 90
°
(ESBEND x 1)
- Condensate trap (ESCONDK)
- Roof cowl (ESROOFCOWL)
A
flue configuration could have
a flue length of 7.5 m and contain
one 90
°
bend—the 90
°
bend
would be the 90
°
bend (ESBEND).
B
flue components:
- Direct flue (ASPDFK)
- Coaxial pipe (ESPIPE900)
- Bends 2 x 90
°
(ESBEND x 2)
- Condensate trap (ESCONDK)
B
flue configuration could have a
flue length of 6.5 m and contain
two 90
°
bends—the bends would
be the two 90
°
bends (ESBEND).
ASPDFK, remove terminal and use
on outside wall.
Through-wall sideways*
Flue components:
- Adaption flue (EVOKIT03)
- Coaxial pipe (ESPIPE900)
- Wall terminal (ESWTERM)
Exterior wall
Flue
terminal
Heater
Heater
Exterior wall
Under floor
Flue
terminal
Down and out*
Flue components:
- Adaption flue (EVOKIT03)
- Coaxial pipe (ESPIPE900)
- Bend 2 x 45
°
(ESBEND x 1)
- Wall terminal (ESWTERM)
Down rating the appliance
For all flueing EXCEPT direct flueing, the
appliance must be down rated (ensures
optimum performance of the fan) as per
the instructions on the commissioning
sheet.
Maximum flue length and number of
bends
•
Max. flue length - 8.5 m
•
Max. number of bends - three
One 90
°
bend equals 1 m. For every 90
°
bend the overall length must be reduced
by 1 m. For example if an installation has
three 90
°
bends, the maximum flue length
can be 5.5 m. The flue transition for all
flueing installations, excluding direct
horizontal flueing, is counted as a 90
°
bend.
The below options detail the most common flue installations. If you are doing something
different, for example up and sideways, and are not sure what components you need,
please contact Rinnai.
* Allow for a 2 ° fall from the heater connection to the wall terminal.