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BAS Basic Materials, Interface Devices, and Sensors

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BAS Basic Materials, Interface Devices, and Sensors

MD ANDERSON Project No. XX-XXXX MD ANDERSON PROJECT NAME

    A/E Name Issue Description

    A/E Project No. Month, 00, 0000

SECTION 25 11 00 BAS BASIC MATERIALS, INTERFACE DEVICES, AND SENSORS

    PART 1 - GENERAL

    1.01 RELATED DOCUMENTS

    A. Drawings and general provisions of the Contract, including General and Supplementary

    Conditions and Division 01 Specification Sections, apply to this Section.

    B. Specifications throughout all Divisions of the Project Manual are directly applicable to this

    Section, and this Section is directly applicable to them. Building automation system

    requirements may be specified, but not limited to, the following Sections when applicable:

    1. Packaged engine generator system.

    2. Fuel oil piping system.

    3. Hot water boilers.

    4. Computer room air conditioning units.

    5. Automatic transfer switch.

    1.02 SUMMARY

    A. Pneumatic Tubing.

    B. Wiring.

    C. Control Valves and Actuators.

    D. Control Dampers and Actuators.

    E. Control Panels.

    F. Sensors.

    G. Pneumatic Control Components (Gauges, Switches, Relays, etc.).

    H. Electric Control Components (Switches, EP Valves, Thermostats, Relays, etc.).

    I. Transducers.

    J. Current Switches.

    K. Nameplates.

    L. Testing Equipment.

    M. Refer to Section 25 00 00 for general requirements.

    N. Refer to other Division 20 and Division 23 Sections for installation of instrument wells, valve

    bodies, and dampers in mechanical systems; not Work of this Section.

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MD ANDERSON Project No. XX-XXXX MD ANDERSON PROJECT NAME

    A/E Name Issue Description

    A/E Project No. Month, 00, 0000

    O. Provide the following electrical work as work of this Section, complying with requirements of

    Division 26 Sections.

    1. Control wiring between field-installed controls, indicating devices, and unit control panels.

    2. Interlock wiring between electrically interlocked devices, sensors, and between a hand or

    auto position of motor starters as indicated for all mechanical and controls.

    3. Wiring associated with annunciator and alarm panels (remote alarm panels) and

    connections to their associated field devices.

    4. All other necessary wiring for fully complete and functional control system as specified. 1.03 REFERENCE STANDARDS

    A. The latest published edition of a reference shall be applicable to this Project unless identified

    by a specific edition date.

    B. All reference amendments adopted prior to the effective date of this Contract shall be

    applicable to this Project.

    C. All materials, installation and workmanship shall comply with the applicable requirements

    and standards addressed within all references.

    1.04 WORK BY OTHERS

    A. Control Valves furnished under this Section shall be installed under the applicable piping

    Section under the direction of the BAS Provider who will be fully responsible for the proper

    operation of the valve.

    B. Control Dampers furnished under this Section shall be installed under the applicable air

    distribution or air handling equipment Section under the direction of the BAS Provider who

    will be fully responsible for the proper operation of the damper.

    C. Water Pressure Taps, Thermal Wells, Flow Switches, Flow Meters, etc. that will have wet

    surfaces, shall be installed under the applicable piping Section under the direction of the

    BAS Provider who will be fully responsible for the proper installation and application.

    D. Controlled Equipment Power Wiring shall be furnished and installed under Division 26.

    Where control involves 120 volt (V) control devices controlling 120V equipment, Division 26

    Contractor shall extend power wiring to the equipment. BAS Provider shall extend it from

    the equipment to the control device.

    PART 2 - PRODUCTS

    2.01 GENERAL

    A. All materials shall meet or exceed all applicable referenced standards, federal, state and

    local requirements, and conform to codes and ordinances of authorities having jurisdiction.

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    A/E Name Issue Description

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    B. Provide electronic, pneumatic, and electric control products in sizes and capacities indicated,

    consisting of valves, dampers, controllers, sensors, and other components as required for

    complete installation. Except as otherwise indicated, provide manufacturer's standard

    materials and components as published in their product information; designed and

    constructed as recommended by manufacturer, and as required for application indicated. 2.02 MATERIALS AND EQUIPMENT

    [EDIT THE FOLLOWING TO SUIT THE PROJECT. ENGINEER SHALL ASSESS THE COST EFFECTIVENESS OF PNEUMATICALLY DRIVEN ACTUATORS. ENGINEER SHALL ALSO ASSESS THE CONDITION,

    RELIABILITY, AND CAPACITY OF EXISTING CONTROL AIR SUPPLIES WHERE APPLICABLE TO THE

    PROJECT. ]

    A. Control Air Supply: Contractor may reuse existing control air in buildings where pneumatic

    controls will be replaced. Contractor shall install air dryers and air filters so that all

    controllers and new pneumatic devices receive a clean and dry air supply.

    1. The control air filters shall remove oil and solid particles from the compressed air.

    Provide a prefilter and a final filter.

    2. The prefilter shall be rated for 100 percent removal of all solids 1 micron and larger, 100

    percent removal of liquid water, and 70 percent removal of oil aerosols with 2000 ppm

    maximum inlet liquid loading.

    3. The final filter shall be rated for 100 percent removal of liquid water and solids larger

    than 0.03 micron; 99.999 percent removal of oil aerosols with 100 ppm maximum inlet

    liquid loading.

    4. Filters shall include replaceable filter element, differential pressure gauge, and automatic

    liquid drain trap. Filters shall be selected for a maximum pressure drop of 2 psig at

    compressor capacity. Filter bodies shall be rated for 225 psig or greater operating

    pressure. Transparent acrylic tube housings shall be protected by a perforated steel

    safety shield.

    5. Filters shall be Hankison, DelTech, Wilkerson, or Arrow Pneumatics. Substitutions shall

    be allowed per Division 01. Furnish one (1) spare filter element per filter. [THE FOLLOWING IS A COSTLY REQUIREMENT THAT WILL SIGNIFICANTLY INCREASE THE

    INSTALLATION COST. ENGINEER SHALL USE CAUTION IN SPECIFYING THIS REQUIREMENT AND SHALL CONSULT WITH OWNER PRIOR TO SPECIFYING THIS REQUIREMENT.]

    6. Provide a PRV, oil filter and air filter combination assembly at each end use pneumatic

    device so that all pneumatic devices receive a clean and dry air supply.

    a. The control air filters shall remove oil and solid particles from the compressed air.

    b. Particulate filters shall be rated for 100 percent removal of all solids 5 micron and

    larger, 100 percent removal of liquid water, and removal of oil aerosols 0.01 microns

    and larger. Filters shall include replaceable filter element and automatic piston drain.

    c. Filters shall be selected for a maximum pressure drop of 5 psig at device capacity.

    Filter bodies shall be rated for 150 psig or greater operating pressure. Provide ?-

    inch ports. Provide relief valve set at 30 psig.

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    d. Filter/PRV’s selection based on Wilkerson, Model Combination C08. Substitutions

    shall be allowed per Division 01.

    [EDIT THE FOLLOWING TO SUIT THE PROJECT. ENGINEER SHALL CONSULT WITH OWNER PRIOR TO SPECIFYING THE DRYERS. ]

    7. For systems where no pneumatic tubing is subject to temperatures below 40 degrees F

    and without refrigerated dryers, provide an air-cooled refrigerated dryer with flow

    capacity at 100 degrees F, 100 psig saturated entering air, and 40 degrees F leaving

    dewpoint equal to or exceeding air compressor capacity.

    a. Refrigerated dryer shall be a single package unit with all necessary piping,

    refrigerant, controls, wiring and accessories.

    b. Dryer shall include refrigeration system, on/off switch, inlet air pressure gauge, and

    water separator with automatic drain. Refrigerant shall be R-134a. System shall be

    labeled by CSA or UL.

    c. Manufacturer shall be Hankison, Wilkerson, DelTech, Ingersol-Rand or Arrow

    Pneumatics.

    8. For systems with outdoor pneumatic components or components otherwise exposed to

    ambient conditions, provide a desiccant-type heatless self-regenerative air dryer for

    piping providing air supply to these components.

    a. Dryer capacity shall exceed connected load, plus a 30 percent allowance for

    expansion with inlet conditions of 100 degrees F, saturated air at 100 psig, and outlet

    conditions of minus 40 degrees F dewpoint.

    b. Dryer maximum air pressure drop at rated flow shall not exceed 5 psig. Required air

    flow for regeneration shall not exceed 20 percent of dryer output capacity.

    c. Dryer shall include two desiccant towers, piping, changeover valves, exhaust

    silencers, controls and wiring.

    d. Desiccant towers shall be designed in accordance with the ASME Boiler and

    Pressure Vessel Code, Section VIII, and shall be ASME stamped for 125 psig working

    pressure, and fitted with suitable relief valves if tower physical size places tower

    within the scope of the Code where stamp is required.

    e. Desiccant dryers shall be as manufactured by Hankison, Deltech, Arrow Pneumatics,

    Ingersol-Rand or Zurn.

    9. Main Air Piping (between the compressors and the field control panels): Hard drawn

    copper tubing, ASTM B 88, Type L.

    10. Branch Air Piping (to include main air between field control panels and field devices:

    Seamless copper tubing, Type K or L, ASTM B 88; with cast-bronze solder joint fittings,

    ANSI B1.18; or wrought-copper solder-joint fittings, ANSI B16.22; except brass

    compression-type fittings at connections to equipment. Solder shall be 95/5 tin antimony,

    or other suitable lead free composition solder.

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    11. Branch Air Piping Termination And Tubing Within Control Panels: Virgin polyethylene

    non-metallic tubing type FR, ASTM D 2737. Use compression or push-on brass fittings. B. Instrument Pipe and Tube:

    1. Hydronic and Instruments:

    a. Connection To Main Piping: Provide ? inch minimum size threadolet, ? inch x 2

    inch brass nipple, and ? inch ball valve for connection to welded steel piping.

    Provide tee fitting for other types of piping.

    b. Remote Instruments: Adapt from ball valve to specified tubing and extend to remote

    instruments. Provide a union or otherwise removable fitting at ball valve so that

    connection to main can be cleaned with straight rod. Where manifolds with test ports

    are not provided for instrument, provide tees with ? inch FPT branch with plug for

    use as test port. Adapt from tubing size to instrument connection.

    c. Line Mounted Instruments: Extend rigid piping from ball valve to instrument. Do not

    use close or running thread nipples. Adapt from ball valve outlet to instrument

    connection size. Provide a plugged tee if pipe makes 90 degree bend at outlet of

    valve to allow cleaning of connection to main with straight rod without removing

    instrument.

    d. Instrument Tubing: Seamless copper tubing, Type K or L, ASTM B 88; with cast-

    bronze solder joint fittings, ANSI B1.18; or wrought-copper solder-joint fittings, ANSI

    B16.22; or brass compression-type fittings. Solder shall be 95/5 tin antimony, or

    other suitable lead free composition solder. Tubing outside diameter size shall be not

    less than the larger of ? inch or the instrument connection size.

    e. Rigid Piping for Line Mounted Instruments: Schedule 40 threaded brass, with

    threaded brass fittings.

    2. Low Pressure Air Instrument Sensing Lines

    a. Connections: Use suitable bulkhead type fitting and static sensing tip for static

    pressure connections. Adapt tubing to instrument connection.

    b. Tubing: Virgin polyethylene non-metallic tubing type FR, ASTM D 2737, with flame-

    retardant harness for multiple tubing. Use compression or push-on brass fittings. C. Secondary LAN Communication Wiring and BAS low voltage wiring/cables: All wiring shall

    be in accordance with the latest edition of the National Electrical Code and Division 26.

    Wiring/cables shall be provided in a customized color jacketing material. Material color shall

    be as specified in section 27 05 53 (Identification for Low-Voltage Cables).

    1. Contractor shall supply all communication wiring between Building Controllers, Routers,

    Gateways, AAC’s, ASC’s and local and remote peripherals outside the MD ANDERSON

    IT infrastructure. (e.g., operator workstations, printers, and modems).

    2. Local Supervisory LAN: For any portions of this network required under this Section of

    the Specification, Contractor shall comply with Division 27 Communication specifications.

     Network shall be run with no splices and separate from any wiring over thirty (30) volts.

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    A/E Name Issue Description

    A/E Project No. Month, 00, 0000

    3. Secondary Controller LANs: Communication wiring shall be individually 100 percent

    shielded pairs per manufacturer’s recommendations for distances installed, with overall

    PVC cover, Class 2, plenum-rated run with no splices and separate from any wiring over

    thirty (30) volts. Shield shall be terminated and wiring shall be grounded as

    recommended by building controller manufacturer.

    a. Wet / Damp Locations Wiring in underground raceways or raceways which are

    subject to moderate degrees of moisture shall be listed for installation in wet locations.

    Direct burial wiring without a raceway is prohibited.

    4. BAS low voltage wiring/cables: All cables shall have legible printed sleeve identification

    labels at each device and the panel termination.

    a. Labels shall be Brady PermaSleeve TM, part number - "BPSPT-187-175-WT” or

    owner approved equivalent.

    b. Each label shall be identified with the entire BAS point name utilized in the BAS

    database and the point address.

    D. Signal Wiring: Contractor shall run all signal wiring in accordance with the latest edition of

    the National Electrical Code and Division 26.

    1. Signal wiring to all field devices, including, but not limited to, all sensors, transducers,

    transmitters, switches, etc. shall be twisted, 100 percent shielded pair, minimum 18-gage

    wire, with PVC cover. Signal wiring shall be run with no splices and separate from any

    wiring above thirty (30) volts.

    a. Wet / Damp Locations Wiring in underground raceways or raceways which are

    subject to moderate degrees of moisture shall be listed for installation in wet locations.

    Direct burial wiring without a raceway is prohibited.

    2. Signal wiring shield shall be grounded at controller end only unless otherwise

    recommended by the controller manufacturer.

    E. Low Voltage Analog Output Wiring: Contractor shall run all low voltage control wiring in

    accordance with the latest edition of the National Electrical Code and Division 26.

    1. Low voltage control wiring shall be minimum 18-gage, twisted pair, 100 percent shielded,

    with PVC cover, Class 2 plenum-rated. Low voltage control wiring shall be run with no

    splices separate from any wiring above thirty (30) volts.

    a. Wet / Damp Locations Wiring in underground raceways or raceways which are

    subject to moderate degrees of moisture shall be listed for installation in wet locations.

    Direct burial wiring without a raceway is prohibited.

    F. Control Panels: Provide control panels with suitable brackets for wall mounting, unless

    noted otherwise, for each control system. Locate panel adjacent to systems served. Mount

    center of control panels [60 inches confirm with Owner] above finished floor or roof.

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    1. Interior: Fabricate panels of 16-gage furniture-grade steel, totally enclosed on four sides,

    with removable perforated backplane, hinged door and keyed lock, with manufacturer's

    standard shop-painted finish and color. Panel / enclosure shall be sized to provide

    adequate mounting space for all components plus a minimum of 25% spare backplane

    capacity. All components shall have a minimum of 2 inch clearance from the four sides

    of the panel unless factory wired and designed otherwise.

    2. Exterior: 16-gage 304 or 316 stainless steel NEMA 4X enclosure. Panel shall have

    hinged door, keyed lock, and integral, thermostatically controlled heater. Provide hinged

    deadfront inside panel when flush-mounted control and/or indicating devices are

    included in panel. Fiberglass or aluminum, as applicable, to be used when gases that

    are being used in the panel area are corrosive to stainless steel.

    3. Provide UL-listed cabinets for use with line voltage devices.

    4. Control panel shall be completely factory wired and piped, and all electrical connections

    made to a terminal strip. Wire nuts are not acceptable in exposed area of panel. High

    and low voltage cables shall be isolated from each other.

    5. All gauges and control components shall be identified by means of nameplates or Owner

    approved equivalent.

    6. All control tubing and wiring shall be run neatly and orderly in open slot wiring duct with

    cover.

    7. Provide a 6 inch x 6 inch minimum wireway (metal wiring/tubing) trough across the entire

    width of the panel mounted to the top of the panel with close nipples of sufficient size for

    additional 50 percent wiring and tubing capacity. Wireways shall not be less than 24

    inches in length. Control panel wiring shall be installed and distributed in the wireway to

    minimize routing of wiring and tubing within the control panel. Wireway construction to

    be the same as the associated control panel.

    8. Complete wiring and tubing termination drawings shall be mounted in, and a second set

    mounted adjacent to, each panel in a frame with lexan cover of sufficient size to be

    easily readable.

    2.03 STANDARD SERVICE CONTROL VALVES

    A. Control valve sizing and selection is the initial responsibility of the Engineer and not left to

    the BAS Provider. Engineer shall provide a valve schedule that lists the requirements of the

    valves for Cv, close off, temperature etc. This should be a result of analyzing the valves

    performance across the range of control. Engineer shall consult with Owner prior to

    specifying control valves.

    B. General:

    1. Provide factory fabricated control valves of type, body material and pressure class

    indicated.

    2. Where type or body material is not indicated, provide selection as determined by

    manufacturer for installation requirements and pressure class, based on maximum

    pressure and temperature in piping system.

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    3. Provide valve size in accordance with scheduled or specified maximum pressure drop

    across control valve.

    4. Control valves shall be equipped with heavy-duty actuators, and with proper close-off

    rating for each individual application.

    5. Minimum close-off rating shall be as scheduled and adequate for each application, and

    shall generally be considered at dead head rating of the pump.

    [THE FOLLOWING VALVES ARE FOR USE IN A STANDARD INSTALLATION.]

    C. Plug-Type Globe Pattern for Water Service:

    1. Valve Sizing: Where not specifically indicated in the Contract Documents, modulating

    valves shall be sized for maximum full flow pressure drop between 50 percent and 100

    percent of the branch circuit it is controlling unless scheduled otherwise. Two-position

    valves shall be same size as connecting piping.

    [EDIT/DELETE THE FOLLOWING TO SUIT THE SYSTEMS APPLICABLE TO THE PROJECT.]

    2. Single Seated (Two-way) Valves: Valves shall have equal-percentage characteristic for

    typical heat exchanger service and linear characteristic for building loop connections to

    campus systems unless otherwise scheduled on the drawings. Valves shall have cage-

    type trim, providing seating and guiding surfaces for plug on ‘top-and-bottom’ guided

    plugs.

    3. Double Seated (Three-way) Valves: Valves shall have linear characteristic. Valves shall

    be balanced-plug type, with cage-type trim providing seating and guiding surfaces on

    ‘top-and-bottom’ guided plugs.

    4. Temperature Rating: 25 degrees F minimum, 250 degrees F maximum.

    5. Body: Bronze, screwed, 250 psi maximum working pressure for ? inch to 2 inch; Cast

    iron, flanged, 125 psi maximum working pressure for 2-1/2 inches and larger.

    6. Valve Trim: Bronze; Stem: Polished stainless steel.

    7. Packing: Spring Loaded Teflon or Synthetic Elastomer U-cups, self-adjusting.

    8. Plug: Brass, bronze or stainless steel, Seat: Brass.

    9. Disc: Replaceable composition or stainless steel filled PTFE.

    10. Ambient Operating Temperature Limits: -10 to 150 degrees F (-12.2 to 66 degrees C).

    11. Acceptable Manufacturers: Subject to compliance with requirements, approved

    manufacturers are as follows:

    a. Johnson Controls.

    b. Invensys.

    c. Warren.

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    d. Delta.

    D. Plug-Type Globe Pattern for Steam Service:

    1. Valve Sizing: Where valve size is not specifically indicated in the Contract Documents,

    size modulating valves for applications of 15 psig or less for 80 percent of inlet gauge

    pressure unless scheduled otherwise. Modulating valves for applications of greater than

    15 psig shall be sized for 42 percent of inlet absolute pressure unless scheduled

    otherwise. Two-position valves shall be same size as connecting piping.

    2. Characteristics: Modified equal-percentage characteristics. Cage-type trim, providing

    seating and guiding surfaces for plug on "top and bottom" guided plugs.

    a. Working Temperature: 250 degrees F minimum for saturated steam applications of

    15 psig or less; 366 degrees F minimum for saturated steam applications of greater

    than 15 psig up to 150 psig.

    3. Body: Bronze, screwed, 250 psig steam working pressure for ? inch to 2 inch; Cast iron,

    flanged, 100 psig steam working pressure for 2-1/2 inches and larger for applications of

    50 psig or less.

    4. Valve Trim, Plug, Seat and Stem: Polished stainless steel.

    5. Packing: Spring Loaded Teflon.

    6. Disc: Replaceable composition or stainless steel filled PTFE.

    7. Acceptable Manufacturers: Subject to compliance with requirements, approved

    manufacturers are as follows:

    a. Johnson Controls.

    b. Invensys.

    c. Warren.

    d. Delta.

    E. Butterfly Type: To be used for two-position control only, unless prior approval is obtained

    from Owner.

    1. Body: Extended neck epoxy coated cast or ductile iron with full lug pattern, ANSI Class

    125 or 250 bolt pattern to match specified flanges.

    2. Seat: EPDM, except in loop bypass applications where seat shall be metal to metal.

    3. Disc: Bronze or stainless steel, pinned or mechanically locked to shaft.

    4. Bearings: Bronze or stainless steel.

    5. Shaft: 416 stainless steel.

    6. Cold Service Pressure: 175 psi.

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    7. Close Off: Bubble-tight shutoff to 150 psi.

    8. Operation: Valve and actuator operation shall be smooth both seating and unseating.

    Should more that 2 psi deadband be required to seat/unseat the valve, valve shall be

    replaced at no cost to the Owner.

    9. Acceptable Manufacturers: Subject to compliance with requirements, approved

    manufacturers are as follows:

    a. Keystone.

    b. Jamesbury WS815.

    c. Bray Series 31.

    d. Dezurik BGS.

    F. Ball Type:

    1. Body: Brass or bronze; one-, two-, or three-piece design; threaded ends.

    2. Seat: Reinforced teflon.

    3. Ball: Stainless steel.

    4. Port: Standard or ‘V’ style.

    5. Stem: Stainless steel, blow-out proof design, extended to match thickness of insulation.

    6. Cold Service Pressure: 600 psi WOG.

    7. Steam working Pressure: 150 psi.

    8. Acceptable Manufacturers: Subject to compliance with requirements, approved

    manufacturers are as follows:

    a. Conbraco.

    b. Worcester.

    c. Nibco.

    d. Jamesbury.

    e. PBM.

    f. Delta.

    G. Segmented or Characterized Ball Type:

    1. Body: Carbon steel (ASTM 216), one-piece design with wafer style ends.

    2. Seat: Reinforced teflon (PTFE).

    3. Ball: Stainless steel ASTM A351.

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