Viega Eco Plus 8180US, Eco Plus 8108.1US Installation Manual
Viega Flushing Systems
Installation Manual
The global leader
in plumbing, heating
and pipe joining systems
Viega products are designed to be installed by licensed and trained plumbing and mechanical professionals
who are familiar with Viega products and their installation. Installation by non-professionals may void
Viega LLC’s warranty.
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Contents
1 Instructions for Use
1.1 Intended use ..................................................................4
1.2 Construction height .............................................................4
1.3 WC ceramic bowls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 Overview
2.1 Model 8180US .................................................................5
2.1.1 Dimensions ...............................................................6
2.1.2 Flush volume .............................................................6
2.2 Model 8108.1US ...............................................................7
2.2.1 Dimensions ...............................................................8
2.2.2 Flush volume .............................................................8
3 Mounting
3.1 Framing and mounting WC carrier .................................................9
3.1.1 Required tools ............................................................9
3.2 Mounting WC carrier Model 8180US ...............................................9
3.2.1 Suitable walls .............................................................9
3.2.2 Steel stud mounting ........................................................9
3.2.3 Wood stud mounting ......................................................11
3.3 Mounting WC carrier Model 8108.1US ............................................12
3.3.1 Suitable walls ............................................................12
3.3.2 Steel stud mounting .......................................................12
3.3.3 Wood stud mounting ......................................................14
4 Bowl Installation .................................................................15
5 WaterSense Compatible Toilet Bowl Models
5.1 WaterSense EPA high efciency
Compatible wall-hung toilet bowl models ...........................................16
5.2 Other compatible wall-hung toilet bowl models ......................................17
6 Warranty ........................................................................19
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1 Instructions for Use
1.1 Intended use
• The Viega Eco Plus WC carrier is suitable for
mounting in wood or steel stud walls
• The WC carrier may only be mounted on even
wall surfaces
1.2 Construction height
• All references to construction height should be
measured from the nished oor. If measuring
from unnished oor, the thickness of the oor
covering should be added.
Model Part No Product description
8180US 52700 Viega Eco Plus WC carrier
2x6
For Visign flush plates, manual or touchless actuation
Flush actuation from the front, dual flush technology, adjustable ceramic height, barrierfree
Components
Powder-coated steel frame, concealed cistern, 3½" PP drain elbow, fernco coupling,
mounting hardware for 2x6 wood or metal studs, bowl mounting kit, trim guards
Cistern components
Pre-mounted angle stop with ½" NPT supply connection, fill valve, flush valve
Technical Data
sm. flush vol. factory setting approx. 0.8 gallon
sm. flush vol. setting approx. 0.8 - 1 gallon
full flush vol. factory setting approx. 1.6 gallon
810 8 .1U S 52710 Viega Eco Plus WC carrier
2x4
For Visign flush plates, manual or touchless actuation
Flush actuation from the front, dual flush technology, adjustable ceramic height, barrierfree
Components
Powder-coated steel frame, concealed cistern, 3½” PP drain elbow, fernco coupling,
mounting hardware for 2x4 wood or metal studs, bowl mounting kit, trim guards
Cistern components
Pre-mounted angle stop with ½" NPT supply connection, fill valve, flush valve
Technical Data
sm. flush vol. factory setting approx. 0.8 gallon
sm. flush vol. setting approx. 0.8 - 1 gallon
full flush vol. factory setting approx. 1.6 gallon
1.3 WC ceramic bowls
• The Viega WC carrier can only be used in
combination with compatible wall-hung bowls
(for threaded rods spacing of 7⅛" or 9" (180 or
230 mm)
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2.1 Model 8180US
2 Overview
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7
1
6
5
4
1. Viega Flushing System WC carrier
2. Threaded rods for mounting ceramic bowls
Gauges for bore hole 7⅛" or 9"
(180 or 230mm)
3. Adjustable feet
4. Drain elbow
2
3
5. Water outlet to bowl
6. Concealed tank
7. Trim guard
8. Water supply ½" NP T
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2.1.1 Dimensions
19¼"
44½"
15⅜"
2½"
5¼"
2"
21"
26"
39⅞"
2.1.2 Flush volume
13"
7⅛"
9"
1⅞"
3⅝" - 5
2⅞"
5
16
/
Small flush volume Factory setting approx. 0.8 gpf (3 lpf)
Large flush volume Factory setting approx. 1.6 gpf (6 lpf)
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Setting range approx. 0.8 - 1 gpf (3-4 lpf)
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