2.4.3
Unit Heaters
Provide hot water unit heaters as specified in Section 15760N TERMINAL
HEATING AND COOLING UNITS.
2.4.4
Heating and Ventilating Units
Provide fan-coil units, induction units, unit ventilators, and gravity
ventilators as specified in Section 15720N AIR HANDLING UNITS.
2.5
ELECTRICAL EQUIPMENT
Provide complete with motors, motor starters, thermal overload protection,
and controls. Equipment and wiring shall be in accordance with Section
16402 INTERIOR DISTRIBUTION SYSTEM.
2.6
CONTROLS
Provide controls as specified in Section 15901N SPACE TEMPERATURE CONTROL
SYSTEMS.
2.7
INSULATION
Provide shop and field applied insulation as specified in Section 15080
THERMAL INSULATION FOR MECHANICAL SYSTEMS.
2.8
ASBESTOS PROHIBITION
Asbestos and asbestos containing products are prohibited.
PART 3
EXECUTION
3.1
PREPARATION
Provide storage for equipment and material at the project site. All parts
shall be readily accessible for inspection, repair, and renewal. Protect
material and equipment from the weather.
3.2
INSTALLATION
Piping fabrication, assembly, welding, soldering, and brazing shall conform
to ASME B31.9. Piping shall follow the general arrangement shown. Route
piping and equipment within buildings out of the way of lighting fixtures
and doors, windows, and other openings. Run overhead piping in buildings
in inconspicuous positions. Provide adequate clearances from walls,
ceilings, and floors to permit welding of joints and application of
insulation. Make provision for expansion and contraction of pipe lines.
Make changes in size of water lines with reducing fittings. Do not bury,
conceal, or insulate until piping has been inspected, tested, and approved.
Do not run piping concealed in walls, partitions, underground, or under
the floor except as otherwise indicated. Where pipe passes through
building structure, locate pipe joints and expansion joints where they may
be inspected. Provide flanged joints where necessary for normal
maintenance and where required to match valves and equipment. Furnish
gaskets, packing, and thread compounds suitable for the service. Provide
long radius ells where possible to reduce pressure drops. Pipe bends in
lieu of welding fittings may be used where space permits. Pipe bends shall
have a uniform radius of at least five times the pipe diameter and shall be
free from appreciable flattening, wrinkling, or thinning of the pipe. Do
SECTION 15185N
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