Install Instructions
• Quiet Operation – Flexible ViegaPEX
tubing reduces water hammer noise
and provides quiet operation
• Balanced Water Delivery – multiple
fixtures can be used simultaneously
without noticeable pressure or
temperature changes.
2.2 Structured Plumbing
Structured plumbing is the practice of
installing and/or designing a plumbing
system in a manner that enhances the
systems performance by reducing
water waste and hot water delivery
times. This plumbing strategy is
rapidly becoming important for home
builders in markets where water
conservation is prevalent. Viega,
being the leader in innovation and
technology for the plumbing and
heating systems, has embraced this
philosophy with its plumbing
products.
2.2.1 Parallel Systems:
Using manifolds (see illustration
below), the installer can plumb a
house with no fittings hidden inside
walls. By installing a manifold system
near the hot water source, tubing can
be run directly to each fixture without
using further fittings. This system
provides the lowest pressure losses
Viega IM-PFMB 1007
6
2. GREEN BUILDING
2.1 General
Green Building incorporates
environmental considerations into
every phase of the home building
process where multiple factors are
considered during construction as
well as its operation and its impact on
the environment. LEED® (Leadership
in Energy and Environmental Design)
was established by the U.S. Green
Building Council (USGBC) as a
system to define and measure "green
building". This voluntary market driven
rating system is based on existing
proven technology, awarding credits
for different aspects of environmental
design. There are four levels of
performance that can be achieved per
these resource categories, they are
Certified, Silver, Gold, and Platinum.
Viega’s
PureFlow
plumbing systems
can be incorporated to improve both
water and energy efficiency
supporting this philosophy, earning
your home credits toward a LEED
certification level (when following
LEED installation criteria). To obtain
more information concerning LEED
certification for your home, contact the
USGBC.
The MANABLOC Manifold is a unique
plumbing system that can also be
incorporated to provide water and
energy savings combined with a
superior plumbing system for
homeowners. It’s a simple concept
that provides extraordinary
performance: each fixture is fed by its
own flexible water distribution line,
which runs from a central manifold.
By providing each fixture with its own
distribution line, the line can be sized
appropriately so hot water can be
delivered more rapidly. Since the line
is dedicated to a single hot or cold
fixture, less water is required to purge
the line, which saves time, energy and
can reduce water waste by up to 40%
and save thousands of gallons of
water per year.
Clean System And Clean Installation
The MANABLOC is preferred by many
installers thanks to its fast and safe
installation. There are no fumes from
solvents to contend with and no
torches required on site for
installation. Installation time is
significantly less than that of a rigid
plumbing system due to the flexibility
of ViegaPEX™ tubing and the
simplicity of the
PureFlow
®
fitting
systems. Viega tubing is color coded
to make installation easier and the
connection of fixtures to the proper
distribution line faster and more
foolproof. Homeowners can
be assured of the purity of the system
due to the third party NSF-61
certification carried by both the
MANABLOC and ViegaPEX tubing.
Homeowners also benefit from the
corrosion resistance of ViegaPEX,
which helps to prevent contamination
of drinking water.
Fewer Fittings Behind The Wall
The MANABLOC requires fewer
fittings than branch and main
plumbing systems and very few are
needed behind the wall. The
MANABLOC is installed using flexible
ViegaPEX tubing that can be bent
around obstacles without the need for
fittings. In most cases each dedicated
line has a fitting at the MANABLOC
and one at the fixture connection with
no fittings located behind the walls.
Rich In Homeowner Benefits
Home Builders enjoy the many
features the MANABLOC system
offers their customers over branch
and main plumbing systems
including:
• Faster Hot Water Delivery – properly
sized lines deliver hot water up to
four times faster
• Better Control of the Plumbing
System – individual shutoff valves
provide a simple way of servicing a
fixture or adding on to the system
Parallel Method.