Geberit 131.028 1 User manual

Installation
Manual
Montageanleitung
Instructions de montage
Istruzioni per il montaggio

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Product Specifications
Geberit Model No. 131.028.xx.1
Features
• Water consumption: Dual flush system allows for
0.8 GPF (3 l) or 1.6 GPF (6 l)
• Impact resistant high density polyethylene tank HDPE
• Anti-siphon fill valve meets ANSI / ASSE 1002-99
standard
Material Determination
Recommended material for wall surface construction
(2 x 1/2" or 2 x 3/8"):
• Gypsum / green board
• Cement board
• Tile backer board
• Ceramic tile surface
Warranty
Limited lifetime warranty on tank and carrier.
10 year warranty on fill valve and flush valve.
Product Data
Installation Requirements
Installation
To install Geberit Monolith, a 2 x 6" or 2 x 4" wood frame or
metal frame construction is required. Studs must be
placed where Geberit Monolith will be positioned.
X
X
H
X
9.00
9.25
9.75
10.25
10.50
16.13
16.38
16.88
17.38
17.63
17.25
17.50
18.00
18.50
18.75
~Rim Height H
Seat Height

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Drainage elbow installation
`Install protection plug (yellow)
FF
Centerline of new
Geberit Monolith
installation
Center of HDPE
90 degree elbow
(supplied)
3" Sch 40 PVC
Up through floor.
Connect with
Flexible coupling
(supplied)
X
8½"
T
op view 2 x 4 wall
Hole through floor,
minimum dimensions
3½" square
1−¾" to center of
3" PVC and
90 degree elbow
T
op view 2 x 6 wall
Hole through floor,
minimum dimensions
3½" square
3½" to center of
3" PVC and
90 degree elbow
Water supply installation
1Stub out water supply line. Angle stop valve to be
installed later.
Top view
FF
Front view
18½"1"
For ½" copper supply
5" 1"
Water supply
Alternate position
(same dimensions)

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Frame installation
`Strap drainage elbow to studs to prevent from
falling back into wall.
1Finish wall surface construction.
2Attach supplied angle valve.
Outlet of valve must point to 6 o‘clock position!
Option 1: Tile wall see page 4
Option 2: Painted wall see page 6
FF
17½"
25"
33"
41"
43"
(2) 2 x 4 to ceiling
OR (1) 2 x 6 to ceiling
with centers as shown
8½"
5"
½"
Option 1: Tile wall
1
2
21
5
8
1
/
2
21
5
8
1
/
2
91
35
3
/
4
0
F. F.
5
3
/
4
5
3
/
4
2
1
/
4
ø 3/8 ''
1 4
≥1/4
13 mm

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3
4
1
T 20
Be sure this mark is lined up at elevation "X".
It should also be equal to center of drainage elbow.
5Fine leveling adjustment. Raise or lower sides as
needed.
CAUTION
`Do not overtighten.
6
X
+ 3/8
+ 3/8
- 3/8
- 3/8
5 mm
13 mm

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CAUTION
`Do not overtighten.
8
To complete the installaton continue on page 8.
ø 3/8 ''
13 mm
Option 2: Painted wall
1
2
8
1
/
2
8
1
/
2
8
1
/
2
8
1
/
2
35
3
/
4
35
3
/
4
F.F.
F. F.
5
3
/
4
5
3
/
4
2
1
/
4
ø 3/8 ''
ø 11/64 ''
1 4
≥1/4
13 mm

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3
4
1
T 20
Be sure this mark is lined up at elevation "X".
It should also be equal to center of drainage elbow.
5Fine leveling adjustment. Raise or lower sides as
needed.
CAUTION
`Do not overtighten.
6
X
1 4
≥1/4
13 mm
13 mm

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7
CAUTION
`Do not overtighten.
8
ø 11/64 ''
13 mm
Common installation steps (tile and painted wall)
CAUTION
`Do not overtighten.
1
CAUTION
`Do not overtighten.
2
1
2
3
13 mm
13 mm

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3
4
H
1
H
2
H
1
H
2
1
1
2
5
CAUTION
`Do not forget sealing washer.
6
3
2
1
1

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7
8
For water supply on right, filling valve can remain in
position as supplied.
For water supply on left, filling valve must be
repositioned (see next steps).
500:00:45
9
10
2
1
2
4
3
1
1
2