PEX Installation Manual
Table Of Contents
- 1 Introduction
- 2 Codes, Standards and Certifications
- 3 Viega PEX Installation Methods
- 4 Viega Manifolds
- 5 Viega PEX Press Fittings
- 6 Viega PEX Crimp Fittings
- 7 ViegaPEX Ultra Tubing
- 8 Viega FostaPEX Tubing
- 9 Viega PEX System Design and Sizing
- 10 System Sizing and Calculations
- 11 Water Service Installation
- 12 Installing the ManaBloc
- 13 Mounting the ManaBloc
- 14 Installing Manifold Distribution Lines
- 15 Installing the ViegaPEX Ultra Tubing System
- 16 Fastening the Viega PEX System
- 17 Installing Viega PEX Fittings
- 18 Pressure Testing Viega PEX Systems
- 19 System Disinfection
- 20 Warranty
IM-PF 724596 0416
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19.1 General
Local codes may require system disinfection. When no other method is available, follow the time limitations and
exposure levels shown below.
1. Use a chlorine solution and one of the exposure durations listed below:
2. Mix the disinfection solution thoroughly before adding it to the system.
3. The chlorine solution must reach all parts of the system. Open all xtures (both sides) and ow water
until a chlorine smell is present. As an alternative, chlorine test tablets can be used to detect chlorine
at each xture.
4. The chlorine source for the solution can be, but is not limited to, the following:
5. After the solution has been in the system for the time required by the Authority Having Jurisdiction
(AHJ) or the exposure durations listed in Step 1, the system shall be ushed completely with
potable water.
6. The system must be purged or drained of all water or protected from freezing.
Concentration Period Authority
200 PPM 3 hours IPC/UPC
®
50 PPM 24 hours IPC/UPC
®
Chlorine Source % Active Chlorine Form
Amount Per 100 Gallons Water
for a 200 PPM Solution
Laundry bleach 5.25 Liquid 3 pints (48 oz.)
FAILURE TO FLUSH THE SYSTEM NOTICE!
To prevent reduced service life of system components, disinfection solutions
shall not be allowed to stand in the system longer than 24 hours. Thoroughly
ush the system with potable water after disinfection.
19 System Disinfection
19.2 California flushing requirements
The State of California requires all installations of
PEX piping, where it is the initial plumbing system
installed in new construction, shall be ushed twice
over a period of at least one week. The piping
system shall be rst ushed for at least 10 minutes
and then lled and allowed to stand for no less
than one week, after which all the branches of the
piping system must be ushed long enough to fully
empty the contained volume. This shall not apply
to installations of PEX pipe where it replaces an
existing tubing system of any material.
At the time of ll, each xture shall have a
removable tag, shown on the right.