Creating An "External Wall" Flue Installation - Rinnai RHFE-750ETR Installation Manual

CREATING AN "EXTERNAL WALL" FLUE INSTALLATION

Total flue length can be up
to 6.5 metres long and can
contain a maximum of two
(2) ESBEND (2 x 90°)!
l
k
Follow steps 1 through 5 from the chapter "Heater Installation" in the "Rinnai ASPIRATION Operation / Installation
Manual" supplied with the heater.
The creation of the horizontal section of flue installation is the same as creating a DIRECT or DIRECT EXTENDED
flue installations with the following exceptions:
The direction of horizontal fall of the flue pipe is reversed. For Wall External flue installations, a 2° fall is
required from the wall penetration towards the heater.
An ESBEND rather than a mushroom flue terminal is fitted at the end of the horizontal flue run.
Sections of flue installation located outside require the following precautions:
ONLY use PVC cement between joints of the 'outer' PVC flue pipes to secure and seal these
CAUTION
joints against ingress of dust and water.
ONLY use non acidic silicone sealant between the joints of 'outer' PVC flue pipes and any
mating aluminium components (such as the condensate trap) to secure and seal these joints
against ingress of dust and water. Silicone containing acetic acid (vinegar) or other acids as the
curing agent may cause corrosion of aluminium components and must not be used.
Steps for creating a External-Wall flue installation are as follows:
I n t
e r i
o r
w a
1
l l
1. Create the wall penetration(s) in accordance with the section "WALL PENETRATIONS" on page 6.
The minimum diameter required for wall the penetration for a DIRECT flue installation is 80mm
noncombustible surfaces such as brick and 100mm to combustible surfaces such as plaster.
Allow for a continuous 2° fall towards the heater connection point from the external wall penetration.
2. Prepare the 'horizontal' section by following step 2 of "CREATING A "DIRECT" FLUE INSTALLATION" on
page 8 or step 2 of "CREATING A "DIRECT EXTENDED" FLUE INSTALLATION" on page 9 depending on wall
thickness (note that a direct extended flue installation example is illustrated above).
Slide the internal wall plate over the terminal end of the assembled flue pipe until it is nested on the raised ring
of the flue transition.
3. Pass the flue assembly through the internal wall penetration until the internal wall plate is flush with the wall.
Rinnai Australia
FLUE COMPONENT ASSEMBLY
j
i
h
g
a - f
z
Min' required protrusion 50mm
2
Internal wall plate, outer face
Activities for creating an External Wall installation:
a.- f. Refer to steps a. - f. of Creating Direct / Creating
Direct Extended Flue Installations (As Required).
g. Assemble Wall Plate.
h. Assemble & Fit Bend.
i. Fit Condensate Drain.
j. Cut, Fit & Secure Components. Seal Joints
(As Required).
CAUTION
k. Create Vertical Penetrations (As Required).
l. Fit & Fasten Roof Cowl or On-Wall Terminal.
z. Finalise Installation & Commissioning of Heater.
E x
t e r
i o r
w a
3
l l
10 ASP Flue Installation Manual