Install Instructions

199
IM-PR 566442 1114 (Design Manual)
D.3.7 Connecting to permanent manifolds
Permanent manifolds can be installed when
the Climate Mats are installed or later in the
construction process after the slab has cured.
Manifold locations are designated on the Viega
design layout for each project. Ensure that
manifolds are in locations that will remain easily
accessible (e.g., behind a panel or door). Manifolds
must be protected from freezing temperatures, so
sufficient insulation must be provided.
Using a valve stem removal chuck, remove the inner
stem of the Schrader valve to release air pressure
from the mats. With a tubing cutter, trim the Climate
Mat leaders squarely to the proper length at the
manifold location, and discard the temporary
header. To maintain the product warranty, use only
Viega manifolds and fittings to connect the Climate
Mat leaders to the manifolds. Viega recommends a
shutoff valve at each circuit for isolation. In addition,
each manifold should have an isolation ball valve on
the supply and return headers. Climate Mat leaders
are color coded to help you distinguish between
supply and return. Ensure that all of the manifolds
are connected with the same color scheme for
supply and return throughout the installation.
At least ¾" of concrete should be maintained
between the top of the Climate Mat and the top
of the slab. If shelving or other slab anchors will
be installed after the concrete slab is poured,
ensure that the slab and anchors will be designed
to leave at least ¾" clearance between the top
of the Climate Mat and the bottom of any anchor
pilot holes. If installing Climate Mat in a gypsum
concrete slab (e.g. slab on slab), the minimum slab
depth must be at least 1½".
Figure D-13 Minimum ¾" of concrete between
anchor bolt hole and Climate Mat. Strength cone
diagram showing tube placement
D.4 Startup
D.4.1 Purging procedure
See Section 4.2.1, Pressure testing and purging, for
the recommended purging procedure.
D.4.2 Warming up the slab
Follow the instructions in Section 4.2.4 for warming
up the slab.
D.4.3 Testing the concrete for excessive
moisture
Follow the instructions in Section 4.2.4 for ensuring
that the slab is sufficiently dry prior to applying
finish flooring.
D.5 Viega Manifold Cabinet
¾" Min.
Viega's Maniold Cabinet is designed to house
our 1¼" stainless steel manifolds and 1" copper
manifolds. The Viega Manifold Cabinet may also be
used with zone controls and powerheads in some
applications. See the charts below for dimensional
information.
Product Overview
• Recess mount
• Adjustable wall depth (4½" to 6")
• 20-gauge galvanized sheet metal
construction (1 mm)
• Epoxy polyester powder coating
• Open bottom for easy connection of tubing
• Available with standard knob or optional lock
and key (lock and key stock code: 15217)
• Adjustable legs (0 to 3¼")
• When using stock code # 15802 the use of
two locks is necessary
Figure D-14