that continuously removes air. Valve shall be constructed of
corrosion-resisting metal, shall be designed to withstand the maximum
piping system pressure, and shall automatically close tight to prevent
escape of steam and condensate. Vent shall be provided with a manual
isolation valve.
3.1.9.4
Pressure Reducing Valves
Valves designed for a working pressure of not less than 860 kPa 125 psig
shall be provided wherever indicated or required. Each valve shall be
installed with a strainer, a three-valve bypass, and a safety valve.
3.1.10
Steam Traps
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NOTE: Indicate size of flash tanks and installation
detail on drawings. If no flash tanks are required
for the project, modify bracketed choices.
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Float traps shall be installed [in the condensate-discharge line from the
flash tank and elsewhere as] [where] indicated. All other steam traps
shall be installed where indicated.
3.1.11
Unit Heaters
Unit heaters shall be installed as indicated and in accordance with the
manufacturer's recommendation.
3.1.12
Insulation
Thickness and application of insulation materials for piping and equipment
shall be in accordance with Section 15080 THERMAL INSULATION FOR MECHANICAL
SYSTEMS.
3.2
FRAMED INSTRUCTIONS
Framed instructions under glass or in laminated plastic, including wiring
and control diagrams showing the complete layout of the entire system,
shall be posted where directed. Condensed operating instructions
explaining preventive maintenance procedures, methods of checking the
system for normal safe operation, and procedures for safely starting and
stopping the system shall be prepared in typed form, framed as specified
above for the wiring and control diagrams, and posted beside the diagrams.
The framed instructions shall be posted before acceptance testing of the
system.
3.3
ADJUSTING, BALANCING, TESTING AND INSPECTING
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NOTE: Before occupancy of a facility the boilers
shall be inspected in accordance with the Code of
Boiler and Pressure Inspectors (BPVI) and the
American Society of Mechanical Engineers (ASME).
Inspectors must be certified in accordance with BPVI
standards.
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SECTION 15562A
Page 38
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