PEX Installation Manual

ManualsBrandsViega ManualsHeatingPEX Press Adapter - 1/2" Press x SVC - Bronze

Table Of Contents

1 Introduction
- 1.1 Viega PEX solutions
- 1.2 Viega PEX system concepts
2 Codes, Standards and Certifications
- 2.1 Codes
- 2.2 Standards
- 2.3 Certifications
- 2.4 Specifying Viega PEX Systems
3 Viega PEX Installation Methods
- 3.1 Home run systems
- 3.2 Combination systems
- 3.3 Branch and tee
4 Viega Manifolds
- 4.1 Viega manifold markings
5 Viega PEX Press Fittings
- 5.1 Viega PEX Press bronze
- 5.2 Viega PEX Press polymer
  - 5.2.1 Viega Smart Connect feature
- 5.3 Viega PEX Press fitting markings
- 5.4 PEX Press tools
  - 5.4.1 PEX Press hand tools
  - 5.4.2 PEX Press power tools
- 5.5 Making a Viega PEX Press connection with hand tool
6 Viega PEX Crimp Fittings
- 6.1 Viega PEX Crimp Eco Brass fittings
- 6.2 Viega PEX Crimp PolyAlloy fittings
- 6.3 Viega PEX Crimp fitting markings
- 6.4 The Viega PEX Crimp hand tools
- 6.5 Making a Viega PEX Crimp connection
7 ViegaPEX Ultra Tubing
- 7.1 ViegaPEX Ultra properties and performance
- 7.2 Tubing markings
8 Viega FostaPEX Tubing
- 8.1 FostaPEX properties and performance
- 8.2 Tubing markings
9 Viega PEX System Design and Sizing
- 9.1 ManaBloc
  - 9.1.1 Supply and distribution line sizing
  - 9.1.2 Plumbing code compliance (home run / parallel systems)
- 9.2 Combination systems
- 9.3 Branch-and-tee systems
10 System Sizing and Calculations
- 10.1 General
- 10.2 Viega PEX fittings
  - 10.2.1 Viega PEX Press friction loss — equivalent feet of SDR9 PEX tubing
  - 10.2.2 Viega PEX Crimp friction loss — equivalent feet of SDR9 PEX tubing
- 10.3 ViegaPEX Ultra tubing
11 Water Service Installation
- 11.1 Below grade and service line
- 11.2 Foundation penetration
- 11.3 Direct burial of Viega PEX fittings
- 11.4 Concrete
- 11.5 Installing under the slab
- 11.6 Protecting ViegaPEX Ultra tubing
12 Installing the ManaBloc
- 12.1 Overview and carton contents
- 12.2 Location
- 12.3 Draining the ManaBloc unit
- 12.4 Draining the ManaBloc system
- 12.5 Multiple ManaBloc installations
13 Mounting the ManaBloc
- 13.1 Mounting the ManaBloc between studs
- 13.2 Mounting the ManaBloc between studs without use of mounting straps
- 13.3 Mounting the ManaBloc - surface mount
- 13.4 Mounting the MiniBloc
- 13.5 Mounting Viega PEX Press and PEX Crimp Polymer manifolds
14 Installing Manifold Distribution Lines
- 14.1 Installing manifold distribution lines
- 14.2 Valve operation
- 14.3 Connecting distribution lines to the ManaBloc
  - 14.3.1 Port connections
- 14.4 Connecting distribution lines to fixtures
- 14.5 Water supply connections
15 Installing the ViegaPEX Ultra Tubing System
- 15.1 Handling ViegaPEX Ultra tubing
- 15.2 Uncoiling ViegaPEX Ultra tubing
- 15.3 Bending ViegaPEX Ultra tubing
- 15.4 Removing Viega PEX connections
- 15.5 Repairs
- 15.6 Freezing
- 15.7 Water heaters
- 15.8 Heaters, flues, vents and recessed lights
16 Fastening the Viega PEX System
- 16.1 Wood frame construction
- 16.2 Steel construction
- 16.3 Supporting ViegaPEX Ultra tubing
- 16.4 Noise and water hammer in PEX systems
- 16.5 Shower valves
- 16.6 Electrical grounding
- 16.7 Expanding foams
- 16.8 Fire Stop compounds
- 16.9 Tubing expansion
  - 16.9.1 Calculating expansion loops and offsets
- 16.10 Domestic hot water circulating systems
17 Installing Viega PEX Fittings
- 17.1 Stub out options
- 17.2 Copper connections
  - 17.2.1 Soldering Zero Lead alloy PEX fittings
- 17.3 Threaded connections
- 17.4 Valves
18 Pressure Testing Viega PEX Systems
- 18.1 General
- 18.2 Air testing
- 18.3 Leak detection
19 System Disinfection
- 19.1 General
- 19.2 California flushing requirements
20 Warranty

IM-PF 724596 0416

6 Viega PEX Crimp Fittings

Viega PEX Crimp ttings are in metallic or polymer

congurations. The following design criteria make

Viega PEX Crimp ttings ideal for use in potable

water applications.

• Excellent strength properties

• Corrosion resistant

• Fast installation

All Viega PEX tubing, ttings and manifolds are NSF

certied for use in potable water systems.

6.1 Viega PEX Crimp Eco Brass ﬁttings

PEX Crimp Eco Brass ttings are manufactured

from a high-grade Zero Lead alloy known for its

superior properties.

6.2 Viega PEX Crimp PolyAlloy ﬁttings

PEX Crimp PolyAlloy ttings are manufactured

from a performance-grade polymer (Acudel

and/

or Radel-R

) with

excellent chlorine- and corrosion-

resistant properties.

6.3 Viega PEX Crimp ﬁtting markings

Each Viega PEX Crimp tting is marked where space

permits with the following information:

Manufacturer VIEGA

ASTM Standard

ASTM F1807 (metallic)

F2159 (polymer)

Temperature Rating 180°F

Certications

UPC

, or U.P. Code, NSF-pw,

CSA B137.5, cNSF

us pw-G,

ICC-ES PMG

™

1038

Note: All ttings may not be listed with every organization shown.

Use only ASTM F1807 copper crimp rings

and full-circle crimp tools with Viega PEX

Crimp ﬁttings.

NOT for use with FostaPEX tubing.

Viega PEX Crimp PolyAlloy ﬁttings

must be protected from UV exposure,

which can damage them. In the event of

incidental UV exposure during storage,

installation and handling, combined

exposure of PEX Crimp PolyAlloy ﬁttings

shall not exceed 15 days.

Do not expose Viega products to any

foreign substance that includes but

is not limited to VOC (volatile organic

chemical) compounds, paints, solvents,

glues, cleaners and disinfectants. Viega

products that are exposed to these

types of substances are at risk of having

failures (leaks).