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
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14.2 Valve operation
A ManaBloc system, which has valves on all of the
outlet ports, does not require stop valves at the
xtures. However, the Authority Having Jurisdiction
(AHJ) may require stop valves at some xtures.
Use the included red key handle to turn each
port ON or OFF. Valves are marked with arrows
indicating their ON/OFF positions:
Left Port – Arrow Up for OFF
Arrow Left for ON
Right Port – Arrow Down for OFF
Arrow Right for ON
Valve
OFF
Valve
ON
(¼ Turn)
Note: These valves are eld-repairable. Contact
Viega Customer Service for more information on
this procedure.
14.3 Connecting distribution lines to the
ManaBloc
THE WATER SUPPLY TO THE
MANABLOC AND THE PORT VALVES
SHALL BE TURNED OFF BEFORE
ATTEMPTING INSTALLATION OF PEX
CONNECTIONS.
PEX Press, PEX Crimp and Compression
connection models are available and included with
each ManaBloc model. Supply connections are not
included and must be ordered separately. If there
are unused ports, Viega recommends capping
them to protect from the home owner opening the
wrong valve. Use part number 36205 (½" ports) or
36204 (⅜" ports).