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15190; Mechanical Identification [Standards]

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15190; Mechanical Identification [Standards]

    SECTION 15190 MECHANICAL IDENTIFICATION

    PART 1 - GENERAL

1.1 RELATED SECTIONS:

     Refer to Section 02085 for the requirements on labeling insulation to indicate the

    presence or absence of asbestos.

    Refer to Section 02600 for requirements regarding the identification of underground

    utilities and piping described in Divisions 2 and 15.

    Refer to Section 10440 for interior signage.

     Refer to other Division 15 sections for items to be identified according to this section.

     Refer to Section 16195 for electrical identification.

1.2 SCOPE OF SECTION:

     This section contains the requirements relating to the materials and methods used to

    identify items described in Division 15.

1.3 GENERAL:

    The record drawings shall include mechanical identification on all serviceable

    components of piping and duct work systems and shall reference applicable valve

    tag charts and/or riser diagrams.

1.4 CODES AND STANDARDS:

     Comply with ANSI A13.1 for lettering size, length of color field, colors, and viewing

    angles of identification devices.

1.5 IDENTIFICATION OF UNDERGROUND PIPING:

     Refer to Section 02600 for the requirements regarding the identification of

    underground utilities and piping regardless of whether the system is described in

    Division 2 or Division 15.

    East Carolina University January 31, 2001, Section 15190, Page 1 of 6 Construction Standards

    SECTION 15190 MECHANICAL IDENTIFICATION

    A. WARNING TAPE:

    All underground piping and utilities shall have metalized warning tape

    installed above the pipe or line that identifies the specific system buried below.

     Tape shall consist of a minimum 3.5 mil solid foil core encased in a protective

    plastic jacket (total thickness 5.5. mils) and be 6” wide with black lettering

    imprinted on a color coded background that conforms to APWA color code

    specifications. Tape shall be installed from 18” to 30” above the pipe and in

    no case less than 6” below grade.

    B. TRACER WIRE:

    All non-metallic pipe installed underground shall have a tracer wire installed

    along the length of the pipe. Tracer wire shall be 14 gauge minimum, copper

    single-conductor wire with insulation and shall be continuous along the

    pipeline passing through the inside of each valve box.

PART 2 - PRODUCTS

2.1 PAINTED IDENTIFICATION MATERIALS:

     A. STENCILS:

     Standard fiberboard stencils, prepared for required applications with letter

    sizes generally complying with recommendations of ANSI A13.1 for piping

    and similar applications but not less than 1-1/4" high letters for ductwork and

    not less than 3/4" high letters for access door signs and similar operational

    instructions.

     B. STENCIL PAINT:

     Standard exterior type stenciling enamel; black, except as otherwise indicated;

    either brushing grade or pressurized spray-can form and grade.

2.2 VALVE TAGS:

     A. BRASS VALVE TAGS:

     Provide 19-gauge polished brass valve tags with stamp-engraved piping

    system abbreviation in 1/4" high letters and sequenced valve numbers 1/2"

    high and with 5/32" hole for fastener. Provide 1-1/2" diameter tags except as

    otherwise indicated.

    East Carolina University January 31, 2001, Section 15190, Page 2 of 6 Construction Standards

    SECTION 15190 MECHANICAL IDENTIFICATION

     B. PLASTIC LAMINATE VALVE TAGS:

     Provide manufacturer's standard 3/32" thick engraved plastic laminate valve

    tags, with piping system abbreviation in 1/4" high letters and sequenced valve

    numbers 1/2" high, and with 5/32" hole for fastener. Provide 1-1/2" square

    black tags with white lettering, except as otherwise indicated.

2.3 ENGRAVED PLASTIC-LAMINATE SIGNS:

     A. GENERAL:

     Provide engraving stock melamine plastic laminate, in the sizes and thickness

    indicated, engraved with engraver's standard letter style of the sizes and

    wording indicated, punched for mechanical fastening except where adhesive

    mounting is necessary because of substrate.

     B. THICKNESS:

     1/16" for units up to 20 square inches or 8" length; 1/8" for larger units.

     C. FASTENERS:

     Self-tapping stainless steel screws.

2.4 WRAP-AROUND PLASTIC IDENTIFICATION:

    All plumbing/mechanical piping identification shall adhere to ANSI A13.1 1981.

    Interior piping, all locations, shall utilize Seton "Setmark" or equal pipe markers.

    Exterior piping in exposed locations such as manholes/tunnels, at pad mounted

    chiller, etc., shall utilize Seton "Ultra-mark" or equal pipe markers. All pipe markers

    shall be snap around whenever possible. Markers shall be located at each wall,

    floor or ceiling penetration, whether exterior or interior, and every 20 ft. thereafter.

    Markers shall be fully legible from floor level showing medium contained in pipe, and

    directional arrows.

    Piping shall be identified as follows: DOMESTIC COLD WATER SUPPLY,

    DOMESTIC HOT WATER SUPPLY, HEATING WATER SUPPLY, HEATING

    WATER RETURN, DOMESTIC HOT WATER RETURN, CHILLED WATER SUPPLY,

    CHILLED WATER RETURN, HIGH PRESSURE STEAM, LOW PRESSURE STEAM,

    CONDENSATE RETURN, CONDENSATE PUMP DISCHARGE, ROOF DRAIN,

    FIRE PROTECTION WATER, MAKE UP WATER, WASTE, VENT & others by

    approval by submittals.

    East Carolina University January 31, 2001, Section 15190, Page 3 of 6 Construction Standards

    SECTION 15190 MECHANICAL IDENTIFICATION

    Piping in exposed areas, with canvas cloth jackets, to be painted with two coats of

    latex based, off-white color or color approved by Architect, paint suitable as per

    jacketing manufacturers instructions, prior to piping identifications. The only piping

    that is color coded is Fire Protection Piping, which gets two coats, in interior/exterior

    exposed locations, of "Fire Protection Red" latex based paint.

PART 3 - EXECUTION

3.1 INSTALLATION REQUIREMENTS:

     A. COORDINATION:

     Coordinate new labeling with existing labeling through Project Manager.

    Where identification is to be applied to surfaces that require insulation,

    painting or other covering or finish, including valve tags in finished

    mechanical spaces, identification shall be installed after completion of

    covering and painting. Identification is to be installed prior to installation of

    acoustical ceilings and similar removable concealment.

     B. DUCTWORK IDENTIFICATION:

     1. General: Provide for identification of air supply, return, exhaust, intake,

    and relief ductwork with stenciled signs and arrows, showing ductwork

    service and direction of flow, in black and white.

    2. Locations: Ductwork shall be identified every 20’ in spaces with

    removable ceilings and at each access door in spaces with hard

    ceilings. Exposed ductwork shall be identified every 20’ in mechanical

    rooms. As described above, ductwork shall be labeled on both sides of

    floor and wall penetrations.

     3. Access Doors: Provide engraved plastic-laminate signs on each

    access door in ductwork and housings, indicating purpose of access

    (to what equipment) and other maintenance and operating instructions,

    and appropriate and procedural information.

     C. PIPING SYSTEM IDENTIFICATION:

     1. General: Provide for pipe markers as follows:

     Wrap around plastic identification with application system as indicated

    under Part 2 Products in this Section. Include arrows to show normal

    direction of flow. For hot non-insulated pipes, install a segment of pipe

    insulation with appropriate piping identification.

    East Carolina University January 31, 2001, Section 15190, Page 4 of 6 Construction Standards

SECTION 15190 MECHANICAL IDENTIFICATION

     2. Locate identification as follows wherever piping is exposed to view in

    occupied spaces, machine rooms, accessible maintenance spaces and

    exterior non-concealed locations.

    a. Near each valve and control device.

    b. Near each branch, excluding short take-offs for fixtures and

    terminal units; mark each pipe at branch, where there could be

    question of flow pattern.

    c. At locations where pipes pass through walls, floors, ceilings, or

    enter non-accessible enclosures.

    d. At access doors, manholes and similar access points which

    permit view of concealed piping.

    e. At major equipment items and other points of origination and

    termination.

    f. Spaced intermediately at maximum spacing of 50' along each

    piping run, except reduce spacing to 25' in congested areas of

    piping and equipment.

    g. On piping above removable acoustical ceilings, except omit

    intermediately spaced markers.

    h. Identify non potable piping and outlets.

    3. The following piping shall be color-coded (not banded or striped) in

    exposed locations by completely painting the piping with the indicated

    color. Use standard identification methods in concealed areas.

    a. Fire protection piping - RED

    b. Gas piping - YELLOW

    c. All others WHITE with appropriate identification

     D. VALVE IDENTIFICATION:

     Provide for valve tags on every valve cock and control device in each piping system; exclude check valves, valves within factory-fabricated equipment units, plumbing fixture faucets, convenience and lawn-watering hose bibs, and shut-off valves at plumbing fixtures. HVAC terminal devices and similar rough-in connections of end-use fixtures and units. List each tagged valve in a valve schedule for each piping system.

    East Carolina University January 31, 2001, Section 15190, Page 5 of 6

    Construction Standards

    SECTION 15190 MECHANICAL IDENTIFICATION

     E. MECHANICAL EQUIPMENT IDENTIFICATION:

     Provide for engraved plastic laminate sign on or near each major item of

    mechanical equipment and each operational device. Provide signs for the

    following general categories of equipment and operational devices:

    1. Main control and operating valves, including safety devices.

     2. Meters, gauges, thermometers and similar units.

     3. Fuel-burning units including boilers, furnaces, and heaters.

     4. Pumps, compressors, chillers, condensers and similar motor-driven

    units.

     5. Heat exchangers, coils, evaporators, cooling towers, heat recovery

    units and similar equipment.

     6. Fans, blowers, primary balancing dampers and VAV boxes.

     7. HVAC central-station and zone-type units.

     8. Tanks and pressure vessels.

     9. Air conditioning indoor and outdoor units.

     10. AFD's and transmitters and Control Boxes.

     11. Other items as specified by Project Manager.

    F. FIELD CONTROL DEVICES:

    Refer to Section 15950 for field control device requirements.

     END OF SECTION

East Carolina University January 31, 2001, Section 15190, Page 6 of 6

    Construction Standards

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