Install Instructions

Installing Manifold Distribution Lines
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IM-PF 724596 1021 PureFlow Water System (EN)
10 Installing Manifold Distribution Lines
Run distribution lines continuously in the most direct route from the
ManaBloc to the 󶈵xtures.
A distribution line may contain a coupling or other 󶈵tting for purposes
such as repairing a damaged section of tubing, handling a change of
direction that cannot be made within the minimum bend radius guidelines,
accommodating a 󶈵xture location change that requires a longer line or
supplying a low-demand accessory (i.e., ice maker). However, several
pieces of shorter tubing should not be connected with 󶈵ttings for the
purpose of using up leftover lengths of tubing.
It is the responsibility of the installer to ensure that further
construction, 󶈵nishing, and other mechanical system
installations do not compromise the ManaBloc plumbing
system as installed according to these instructions.
1. Tubing coils are usually placed at the ManaBloc location and tubing
is pulled to the 󶈵xture through stud cavities, holes drilled overhead
in 󶈶oor joists, etc. Several tubes may be pulled at one time. Viega’s
color-coded Viega PureFlow PEX tubing helps prevent cross-
connections.
2. Do not pull tubing tightly. Some slack (7" per 50 feet) is necessary
to accommodate expansion and contraction. Leave enough excess
tubing at the beginning and end of runs to make connections without
putting strain on the tubing.
3. Exercise care when pulling PEX tubing to prevent cutting or abrading.
Take care to prevent kinking of the coiled tubing. If kinking or cutting
occurs, cut out the damaged section and install a coupling.
4. For the best results, connect the distribution lines to 󶈵xtures and the
ManaBloc immediately upon installation. Label the end-use 󶈵xture on
the ManaBloc cover plate next to the port.
5. Since plumbing 󶈵xtures are generally located in groups, and there
may be several Viega PureFlow PEX distribution lines running to
approximately the same location, it is easiest to run these distribution
lines bundled together.
For a neat appearance, tie bundles with nylon ties (part number 43714
or 43701) or plastic strapping at regular intervals.
10.1 Installing Manifold Distribution Lines
Bundles shall be su󶈷ciently tied for tubing support but shall
NOT restrict tubing expansion and contraction caused by
temperature variations.
Kitchen Sink
Master Bath
Self-adhesive labels are supplied with the
ManaBloc. Mark tubes pulled as a bundle
or those not connected immediately at both
ends with a permanent marker to designate
the 󶈵xture supplied.