or glycol, all air shall be vented from the system. After the system is
allowed to stabilize at the operating temperatures of the heating fluid,
the system shall be vented again.
3.5.1
Concrete Slab construction
**************************************************************************
NOTE: Delete this paragraph if slab construction is
not required. The type of installation under the
slab should be coordinated with the architect and
structural engineer.
**************************************************************************
In areas where tubing must cross expansion joints, control joints, or other
crack control measures, the tubing shall be installed below the joints.
The tubing shall be fastened to the reinforcing steel in accordance with
the tubing manufacturer's recommendations. The tubing shall be pressurized
prior to and during the concrete pour to ensure system integrity.
3.5.2
Wooden Floor Construction
**************************************************************************
NOTE: Delete this paragraph if a wooden floor
construction is not required.
**************************************************************************
Tubing shall be fastened to the wood subflooring in accordance with the
drawings and the tubing manufacturer's recommendations. The method of
attaching the tubing to the flooring shall not cause abrasions on the
tubing.
3.5.3
Penetrations to Fire Rated Assemblies
Where pipe pass through firewalls, fire partitions, or floors, a fire seal
shall be provided as specified in Section 07840 FIRESTOPPING.
3.6
COLOR CODE MARKING AND FIELD PAINTING
**************************************************************************
NOTE: Designer will coordinate color code marking
with Section 09900. Color code marking for piping
not listed in Table 1 of Section 09900 will be added
to the table.
**************************************************************************
Color code marking of piping shall be as specified in Section 09900 PAINTS
AND COATINGS. Ferrous metal not specified to be coated at the factory
shall be cleaned, prepared, and painted as specified in Section 09900
PAINTS AND COATINGS. Exposed pipe covering shall be painted as specified
in Section 09900 PAINTS AND COATINGS. Aluminum sheath over insulation
shall not be painted.
3.7
TEST OF BACKFLOW PREVENTION ASSEMBLIES
Backflow prevention assemblies shall be tested in accordance with Section
15400A PLUMBING, GENERAL PURPOSE.
SECTION 15569A
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