Install Instructions
Table Of Contents
- About this Document
- Disclaimers
- Product Information
- Viega Manifolds
- Viega PureFlow Tubing
- Viega PureFlow Fittings
- Viega PureFlow System Design Considerations
- Water Service Installation
- Installing the ManaBloc
- Mounting the ManaBloc
- Installing Manifold Distribution Lines
- Installing the Viega PureFlow PEX Tubing System
- Fastening the Viega PureFlow System
- Installing Viega PureFlow Fittings
- Pressure Testing Viega PureFlow Systems
- System Disinfection
- Installer Checklist
- Limited Warranty
Installing the ManaBloc
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IM-PF 724596 1021 PureFlow Water System (EN)
8.4 Draining the ManaBloc System
1. Loosen and remove all of the supply line connections (or caps) and all
of the distribution lines from the ManaBloc.
2. Remove the four attachment screws and withdraw the ManaBloc unit
from its mounting. Note: Grasp the unit rmly before removing the last
attachment screw to prevent the unit from falling and being damaged.
3. Completely drain the ManaBloc unit by inverting the unit several times until
there is no water coming from any of the supply connections or ports.
4. To purge the PEX distribution lines, rst make sure that both sides of
all of the xtures are in the open position. Using low-pressure air from
a tank or compressor, force the water from the lines by connecting the
air pressure source to each line one at a time and blow air through the
lines until no water ows from the xtures.
5. Reattach the ManaBloc and reconnect the supply and distribution line
connections.
When reconnecting the distribution lines, DO NOT
overtighten the connections. PureFlow Press and
PureFlow Crimp connections must be only hand-
tightened.
8.5 Multiple ManaBloc Installations
If a home requires multiple ManaBlocs to service the number of xtures
in the home, these guidelines should be followed if the ManaBlocs are
closely located to each other:
■ Consider dividing high-demand xtures between the units
■ Consider a reasonable division, i.e. upstairs/downstairs, east/west or
front/back
8.5.1 Locating a Remote ManaBloc
A remote ManaBloc is sometimes recommended to achieve maximum
eciency from your ManaBloc system. It is advantageous when the line
lengths are excessive from one centralized ManaBloc unit. When the
home requires more than one unit due to the number of xtures or size
of the home, consider locating a remote unit near an outlying group of
xtures.