Viega Eco Plus 1F Installation Manual
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VGA1279AU.170403 • www.viega.com.au
Installation Guide for Viega Eco Plus 1F
Concealed Cistern for Wall Mount Pan
Cistern Model 8108.10
A
C
G
D
H
E
F
I
J
B
Components
A Viega Eco Plus 1F assembly.
B Cistern access duct.
C Flushing pipe with bend.
D Flushing pipe – (horizontal adaptor).
E Dust cover for flushing pipe.
F Sewer outlet pipe (90x400mm).
G Pan adaptor pipe
H Dust cover for sewer outlet pipe.
I 90 to 100mm sewer adaptor ring.
J Floor mounting hardware and pan
mounting hardware.
Optional hardware not shown here.
Mounting hardware for face fixing
to masonry. Fixing set 8173 or
8180.73.
623
1130
0-200
Pan not
included
Notes on Eco Plus 1F Installation
Cistern may be installed in stud
framing or face mounted to
masonry. Minimum spacing of
623mm between studs. Studs
must be able to support the
applied loads. Refer to project
engineer/details.
The waste outlet pipe is 90mm
OD, therefore in 90mm cavity
installations, accurate alignment
of the front face of the mounting
bracket with the front face of the
studs is critical.
Where the waste pipe is to
penetrate a concrete slab floor, it
is suggested that core drilling be
carried out where a high degree of
alignment accuracy is required.
Allow for screed and tile thickness
where applicable in all height
calculations.
For the correct mounting of
flushing plates, the total thickness
of wall linings (i.e. total of lining +
tiles + adhesive) must be within
a specified range. Refer to the
following details.
90mm min.
framing
85mm cistern
17-100mm
cistern face
to tile face
Face Mount
Flushing Plate
Tiles + Glue
Cistern
tank
Duct to tile face
Wall Lining
90mm min.
framing
85mm cistern
Cistern
tank
Tiles + Glue
5-18mm
Wall Lining
25-100mm wall
lining thickness
Recessed
Mounting Plate
fixed to wall
lining face
before tiling
Face Mount
Flushing Plate
Recessed
Mount
Flushing Plate
Duct to wall
lining face
Cistern
Mounting
Bracket
aligned
with face
of frame
Cistern
Mounting
Bracket
Cistern
Mounting
Bracket
aligned
with face
of frame
Cistern
Mounting
Bracket
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VGA1279AU.170403 • www.viega.com.au
Cistern Installation in Stud Wall
For installation to a masonry wall,
proceed to Step 8.
Prepare studs to accept the cistern
and pan support bracket.
Minimum of 623mm between stud
fixing faces.
Ensure mains waste pipe is
appropriately located in floor, ready
to receive the waste connection.
Place the cistern bracket on the
feet and place the unit into the wall
space. Align the front face of the
cistern support bracket with the
face of the studs. Refer to previous
Notes. Position and fix the
mounting feet to the floor with
appropriate fixings. The feet may
be rotated to adjust for available
space.
Determine the appropriate height
for the pan (allow for screed and
floor tiling). Adjust the cistern/pan
bracket and fix the bracket to the
floor support posts with the built-in
clamping bolts.
Align the front face of the cistern
bracket with the face of the studs
and fix the bracket to the studs
with appropriate fasteners.
Trim waste outlet pipe to length
required. Mount the pipe in the
support bracket and secure with
the retaining clamp. A 90 to
100mm adaptor (Component I) is
supplied for the junction with the
main sewer line.
Determine the mounting centres
for the pan and fix mounting bolts
in place.
Proceed to Step 16.
Cistern Installation to Face of
Masonry Wall
Determine where the mains waste
pipe is or will be located in floor to
receive the waste connection.
Determine and mark the fixing
points for the cistern/pan support
bracket. Take into account the
desired pan mounting height, and
allow for floor screed and tiles.
Waste outlet pipe
Choose from Step 9 or Step 10.
Drill holes in masonry and install
the fixing brackets. Fit threaded
studs to brackets. (Use optional
fixing set 8173).
560638_B2
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Proceed to Step 11.
Alternatively, drill holes in masonry
and install the fixing studs. (Use
optional fixing set 8180.73).
Place the cistern bracket on the
feet and place the unit onto the top
fixing studs with backing nuts
installed. Position the frame at the
required distance (85-200mm)
from the wall, install retaining nuts.
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