EOCI Attic HVAC Units/Controls Upgrade Background/Statement of Work

Background-

EOCI is located at 2500 Westgate, Pendleton Oregon and is a 1767-bed medium facility with 19 separate general population housing units. The facility was originally built in 1913 and served as a state hospital until was converted to a prison in 1985.

Statement of Work-

EOCI has 19 air handling units located through out the attic of the institution’s main buildings. The existing Delta Controls need to be upgraded to the latest BACnet Controls along with the air handlers being upgraded with new VFD fan motors and pump upgrades to the chilled water system. Additionally, UV lighting will be added to the duct system.

EOCI Attic HVAC Units/Controls Upgrade Scope of Work

The scope of work for this project is upgrade the institution HVAC equipment as indicated on the drawings, updating/retro commissioning all existing DDC controls, adding new DDC points and to HVAC equipment not currently on the controls per the drawings.

Adding UV lights as indicted on the drawings, replace pneumatic FSD actuators with electric actuators, and replace the primary chilled water pump and distributed coil pumps.

All work to be performed per the responsibility chart on the drawings.

EOCI Controls & HVAC Upgrades Common HVAC Materials and Methods 2-17-25 23 05 00 - 1

SECTION 23 05 00 - COMMON HVAC MATERIALS AND METHODS

PART 1 - GENERAL

1.1 DESCRIPTION

A. The provisions of the General Conditions for Public Improvement Contracts, i.e.

“The General Conditions”, Supplemental General Conditions, i.e. “SGC”, apply to the HVAC work specified in this Division.

B. The requirements of this Section apply to the HVAC systems specified in these

Specifications and in other Division 23 sections.

C. Provide all items, articles, materials, equipment, operations and/or methods listed, mentioned, shown and/or scheduled on the Plans and/or in these Specifications, including all labor, supervision, services, permits, fees, and incidentals necessary and required to provide a complete and operable facility with complete systems as shown, specified, and required by applicable codes.

D. The work shall include, but not be limited to, the following systems:

1. Upgrade/Retro-Commissioning of existing Delta Controls (Ainsworth)

2. Provide and install a distributed chilled water pumping system.

3. Provide and install a UV disinfection system in primary AHUs of main building.

E. Advise sub-contractor, suppliers, and vendors involved in the work specified in this Section of the applicable requirements.

1.2 QUALITY ASSURANCE

A. All work and materials shall conform to all applicable local and state codes and all federal, state and other applicable laws and regulations. All clarifications and modifications which have been cleared with appropriate authorities are listed under the applicable sections. All electrical products shall bear the label of a recognized testing laboratory such as UL or CSA.

B. Whenever the requirements of the Specifications or Plans exceed those of the applicable code or standard, the requirements of the Specifications and Plans shall govern.

C. Codes and Standards: Comply with the provisions of the following referenced codes, standards and specifications:

1. Federal Specifications (FS)

2. American National Standards Institute (ANSI)

3. National Electrical Manufacturer's Association (NEMA)

4. National Fire Protection Association (NFPA)

5. Underwriters Laboratories, Inc. (UL)

6. Factory Mutual (FM)

7. International Building Code (IBC) with State and Local Amendments

8. International Mechanical Code (IMC) with State and Local Amendments

2-17-25 23 05 00 - 2

9. Uniform Plumbing Code (UPC) with State and Local Amendments

10. American Society for Testing and Materials (ASTM)

11. Americans with Disabilities Act (ADA)

12. International Fire Code (IFC) with State and Local Amendments

13. Energy Policy Act (EPAct)

14. Manufacturers Standardization Society (MSS)

15. American Gas Association (AGA)

D. Each piece of equipment furnished shall meet all detailed requirements of the Plans and Specifications and shall be suitable for the installation shown.

Equipment not meeting all requirements shall not be acceptable, even though specified by name. Where two or more units of the same class of equipment are furnished, use product of the same manufacturer; component parts of the entire system need not be products of same manufacturer. Furnish all materials and equipment, new and free from defect and of size, make, type and quality herein specified or approved by the Owner. All materials shall be installed in a neat and professional manner.

E. All apparatus shall be built and installed to deliver its full rated capacity at the efficiency for which it was designed.

F. The Plans and Specifications are complementary, per The General Conditions, Section A – General Provisions, A.3 – Interpretation of Contract Documents.

G. Plans: Do not scale plans for roughing-in measurements, nor use as shop drawings. Make field measurements and prepare shop drawings as required.

Coordinate work with shop drawings of other specification divisions.

H. Field Wiring: It is the intent of these specifications that all systems shall be complete and operable. Refer to all plans and specifications, especially the electrical drawings, to determine voltage, phase, circuit ampacity and number of connections provided. Provide all necessary field wiring and devices from the point of connection indicated on the electrical drawings. All equipment shall be installed in compliance with the Electrical Code and the equipment’s UL listing.

Bring to the attention of the Owner’s Designated Point of Contact in writing, all conflicts, incompatibilities, and/or discrepancies prior to bid per The General Conditions, Section A – General Provisions, A.4 – Examination of Plans, Specifications, & Site.

1.3 WORK OF OTHER DIVISIONS

A. Work under this Division shall be conducted in a manner to cooperate with the installation of such equipment or items as specified in other Divisions.

B. Consult all Plans and Specifications in this project and become familiar with all equipment to be installed. Coordinate all aspects of the construction with the other trades on the job to ensure that all work and materials required to provide a complete and operational facility are included in the bid.

C. All sections of Division 23 are interrelated and shall be considered in their entirety when interpreting any material, method, or direction listed in any section of Division 23. Individual sections are not written for specific sub-contractors or suppliers but for the General Contractor.

2-17-25 23 05 00 - 3

1.4 SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES (SUBMITTALS)

A. See the General Conditions, Section B – Administration of the Contract, B.18 – Submittals, Shop Drawings, Product Data and Samples for detailed requirements of shop drawings.

1.5 PRODUCT SUBSTITUTION

A. Materials other than those specified may be approved for this project in compliance with the General Conditions, Section B – Administration of the Contract, B.19 – Substitutions.

1.6 CHANGE ORDERS

A. All Change Orders shall be in compliance with the General Conditions, Section D

– Changes in the Work.

1.7 RECORD DOCUMENTS

A. Project Record (As-Installed) Drawings: Shall be in compliance with the General Conditions, Section K- Contract Close-Out, K.1 – Record Documents

B. Operating and Maintenance Manuals: Shall be in compliance with the General

Conditions, Section K- Contract Close-Out, K.2 – Operation and Maintenance Manuals.

C. Systems Manual: Submit separate Systems Manual [30] days prior to scheduling the required Instruction Period. The Systems Manual shall be a hard copy binder with fold out full size drawings, and a CD with all data in electronic format. The Document shall contain at minimum the following:

1. Permit/Construction/Design Drawings.

2. Contractor As-Built Drawings.

3. Single line diagrams for all systems or components that require regular owner adjustment.

4. As-Built Sequence of Operations, Control Drawings, and Original Set

Points for all equipment requiring contractor programming or set up, including but not limited to;

a. HVAC DDC systems.

b. HVAC Equipment.

c. Plumbing/Pump systems.

d. Operating instructions for integrated building systems.

5. Programing instructions.

6. Recommended schedule of maintenance requirements and frequency.

7. Recommended schedule for retesting of commissioned systems with blank test forms from the original commissioning plan.

8. Recommended schedule for calibrating sensors and actuators.

9. Emergency measures and procedures for systems failures.

1.8 WARRANTY

A. Warranty Documents shall be in compliance with the General Conditions, Section I – Corrections of Work, Entire Section Applies.

2-17-25 23 05 00 - 4

B. Where the manufacturer's guarantee exceeds one year, the longer guarantee shall govern and include the Contractor's labor.

PART 2 - PRODUCTS

2.1 GENERAL

A. General: Provide all new materials and equipment, identical to apparatus or equipment in successful operation for a minimum of two years. Provide materials of comparable quality omitted here but necessary to complete the work.

Maximum allowable variation from stated capacities, minus 5% to plus 10% as approved in each case.

B. Compatibility: Provide products which are compatible with other portions of the work and provide products with the proper or correct power and fuel-burning characteristics, and similar adaptations for the project.

C. Efficiency: Heating and cooling equipment shall comply with ASHRAE

Standard 90.1-2019 and the State Energy Code. Where equipment efficiencies are indicated, the use of alternate or substitute manufacturer’s equipment with lower efficiencies is not permitted.

D. Storage and Handling:

1. Delivery: Deliver to project site with manufacturer's labels intact and legible.

2. Handling: Avoid damage.

3. Storage: Inside protected from weather, dirt and construction dust. Where necessary to store outside, elevate well above grade and enclose with durable, waterproof wrapping.

2.2 MOTORS

A. General: Motors shall conform to UL, CSA, and NEMA MG-1 and bear a permanently attached nameplate indicating compliance and motor characteristics.

Provide motors meeting UL 507 standard where applicable.

B. Manufacturers: General Electric, Lincoln, Baldor, Wagner, Westinghouse, US

Motors/Emerson or Approved Equal. Where selection of motor manufacturer is within Contractor's control (independent of equipment selection), provide motors produced by a single manufacturer to the greatest extent possible.

C. Temperature Rating: Class B insulation, except where otherwise indicated or required for service indicated.

D. Starting Capability: As required for service indicated, but not less than 5 starts per hour.

E. Phases and Current: 1/3 horsepower and smaller capacitor-start, capacitor-run single-phase; 1/2 horsepower and larger, squirrel-cage induction polyphase.

Coordinate with actual current characteristics; and use no 230/460 voltage motors on 208 voltage power or vice versa.

2-17-25 23 05 00 - 5

F. Service Factor: 1.15 for polyphase; 1.25 for single-phase.

G. Construction: General purpose, continuous duty; NEMA design "B," except "C" for high starting torque applications.

H. Frames: For single phase motor sizes NEMA No. 48, except 56 for heavy-duty applications. NEMA "T" frames for 1 horsepower and larger polyphase motors.

Special frame types as required for close coupled pumps and similar applications.

I. Bearings: Ball or roller, and design for thrust where applicable; double shielded and regreasable, except provide permanently sealed where not accessible for greasing. Sleeve-type bearings permitted only where indicated for fractional (1/6 hp or less) horsepower motors with direct drive loads. Minimum L-10 bearing life of 40,000 hours when used with minimum pitch sheaves per NEMA Table 14-1.

J. Enclosure Type: Unless otherwise indicated, open drip-proof for normal concealed indoor use, guarded where exposed to employees or occupants. Type II for outdoor use, except weather-protected Type I where adequately housed.

Totally enclosed where explosion proof motors are required.

K. Overload Protection: Built-in thermal with internal sensing device for stopping motor, and for signaling where indicated on single phase motors.

L. Speed: Not faster than synchronous speeds of 1,800 RPM except on some pumps as approved in each case.

M. Efficiency: The manufacturer's highest (NEMA premium) efficiency motors tested under procedures recommended by NEMA MG-1 (IEEE Standard 112, Test Method B). Intermittent duty motors, operating less than 6 hours per day, shall comply with EPAct/EISA standards. Submit manufacturer's data if motor nameplate does not indicate minimum efficiency. Nominal full load efficiencies for 460 volt, 1,800 rpm motors:

HP Efficiency % 1-1/2 87.5 2 89.5 3 89.5 5 89.5 7-1/2 91.0 10 91.7 15 93.0 20 93.0 25 93.6

N. Inverter Duty Motors: Where motors are controlled by an adjustable frequency drive, provide motors labeled “Inverter Duty,” complying with NEMA MG1-31, and meeting the requirements of the adjustable frequency drive manufacturer.

2.3 STARTERS AND SWITCHES

A. Manufacturers: Cerus Industrial Model numbers are listed. General Electric, ABB, Allen Bradley, Schneider Electric, Eaton, are approved equal. Provide starters by same manufacturer throughout project.

2-17-25 23 05 00 - 6

B. General: Provide each motor with starter or switch as approved and recommended by manufacturer of motor or equipment of which motor is a part.

C. System Description

1. Single Phase Starter: Starters for 115VAC single phase motors less than 1 HP shall be capable of both manual and automatic operation. Refer to Section D for single phase starter requirements.

2. Magnetic Starters: Starters for 3-phase motors shall be magnetic starters.

Refer to Section E for magnetic starter requirements.

D. Enclosed Full Voltage Non-Reversing (FVNR) Single Phase Starter

1. Single Phase Motor Starter Control: The single phase motor starter shall consist of a manually operated quick-make toggle mechanism lockable in the “Off” position which shall also function as the motor disconnect.

Additionally, the starter shall provide thermal overload protection, run status pilot light and fault pilot light. The starter must include the capability to operate in both manual and automatic control modes. In automatic mode, the starter shall have the capability to integrate with a building automation system by providing terminals for run input, run status output and fault output. All control terminals shall be integrated in the starter. At a minimum, each single phase starter shall include an interposing run relay and current sensing status output relay. Single phase motor starter shall be in a surface mount enclosure.

2. Approved manufacturer: Cerus Industrial, model BAS-1P or approved equal.

E. Enclosed Full Voltage Non-Reversing (FVNR) Non-Combination Starter

1. Magnetic Motor Starters shall be enclosed in a general purpose electrical enclosure with the appropriate environmental rating.

2. Starters shall consist of a horsepower rated magnetic contactor with a minimum of 1NO and 1NC auxiliary contacts and solid state electronic overload relay. Overload relay shall protect all three phases with a wide range current setting and trip class to allow field adjustment for specific motor FLA. Overload relay shall provide phase failure, phase loss, locked rotor and stall protection.

3. Provide a manual reset pushbutton on the starter cover to restore normal operation after a trip or fault condition.

4. Each starter shall include an installed 50VA control power transformer (CPT) with protected secondary. The CPT must accept the available line voltage and the control voltage shall not exceed 120V.

5. Installed accessories shall include Hand-Off-Auto operation switch with 22mm style operator interfaces. Include LED pilot light indicators for Hand, Off, Auto, Run and Overload conditions. All pilot devices shall be water tight and dust tight.

6. When remotely controlled by an automation system, the starter shall include remote run terminals which accept both a voltage input signal and a contact closure. The voltage run input shall accept both AC and DC signals including 24VAC, 120VAC, 24VDC and 48VDC to allow direct connection of the transistorized automation signal to the starter.

2-17-25 23 05 00 - 7

7. In applications where the motor is interlocked with a damper or valve, the actuator control must reside within the starter enclosure. The starter must provide a voltage output to operate the actuator to open the damper or valve without closing the motor circuit. The starter will only close the motor circuit and start the motor after it has received a contact closure from a limit or end switch confirming the damper or valve position.

8. Manufacturer shall provide and install tags with engraved white lettering to designate equipment served.

F. Quality Assurance

1. Manufacturer shall provide a five year warranty on the complete starter assembly.

2. The starter assembly shall be UL listed under UL 508A.

2.4 GUARDS

A. Provide guards in accordance with State Safety Code and OSHA requirements over all rotating equipment including belts, shafts and couplings. Drive guards over belts and sheaves shall include 2-1/2" diameter access opening at shaft ends for speed counter.

2.5 DRIVES

A. Acceptable Manufacturers: Dayton, Gates, Browning or approved equal.

B. General: "V" section belt drives, multiple as required. Provide variable pitch motor sheaves on all one or two belt drives and standard slide rails or approved means of adjustment for each motor with belt drive. Use standard section belts and no sheave smaller than cataloged industry standard; provide countersunk center on shaft ends to receive speed counter tip.

C. Selection: Size drive components based on 1.5 times installed motor horsepower.

Where variable frequency drives are provided to modulate motor speed, select drives to allow application of full motor horsepower to the connected load at 60 hertz drive output, up to the maximum rated operating speed of the driven load.

2.6 SOLID-STATE, VARIABLE-SPEED MOTOR CONTROLLERS

A. NOTE: - -VFDs for fans to be provided by Ainsworth/Delta controls. Pump vfds to be supplied by and part of Grundfos pumps. General: Controllers listed and labeled as a complete unit and arranged to provide variable speed of a standard NEMA Design B 3-phase induction motor by adjusting output voltage and frequency of controller. Designed and rated by the manufacturer for the type of load (e.g., fans, blowers, and pumps) used and also approved by the manufacturer for the type of connection used between the motor and load (direct connection or power transmission connection).

B. Input Line Reactors: 5% for reduction of harmonics.

2-17-25 23 05 00 - 8

C. Output Line Reactors: Use these for non-invertor rated motors or voltages beyond 460 volts. Specially designed and constructed for IGBT controllers and designed to protect motor from voltage spikes over 150% of the bus voltage.

Required where controller to motor cable length exceeds 50 feet. Provide dV/dT filters for 460 volt motors with cable lengths in excess of 300 ft.

D. In lieu of providing line reactors, the drive manufacturers may submit a power system analysis demonstrating compliance with IEEE 519.

E. Ratings:

1. Output Ratings: 3-phase, 6 to 120 Hz, with voltage proportional to frequency throughout the voltage range.

2. Starting Torque: 100 percent of rated torque, or as indicated.

3. Speed Regulation: Plus or minus 1 percent.

4. Ambient Temperature: 0° C to 40° C.

5. Efficiency: 98 percent at normal power levels.

F. Isolated Control Interface: Allow the controller to follow one of the following over an 11:1 speed range:

1. Electrical Signal: 4 to 20 milliamperes at 24 V.

2. Pneumatic Signal: 3 to 15 psig.

G. Internal Adjustability: Provide the following internal adjustment capabilities:

1. Minimum Speed: 5 to 25 percent of maximum RPM.

2. Maximum Speed: 80 to 100 percent of maximum RPM.

3. Acceleration: 2 to 22 seconds.

4. Deceleration: 2 to 22 seconds.

5. Current Limit: 50 to 110 percent of maximum rating.

H. Multiple Motor Capability: Controller suitable for service to multiple motors, and furnished with a separate overload relay and protection for each individual motor.

Tripping of any overload relay shall shut off the controller and all motors served by it.

I. Self-Protection and Reliability Features:

1. Input transient protection by means of surge suppressors.

2. Snubber networks to protect against malfunction due to system voltage transients.

3. Motor Overload Relay: Adjustable and capable of NEMA class 10 performance.

4. Notch filter to prevent operation of the controller-motor-load combination at a natural frequency of the combination.

5. Instantaneous Overcurrent Trip.

6. Loss of Phase Protection.

7. Reverse Phase Protection.

8. Under- and Over-Voltage Trips.

9. Overtemperature Trip.

10. Short Circuit Protection.

2-17-25 23 05 00 - 9

J. Automatic Reset/Restart: Attempt three restarts after controller fault or on return of power to the system following an interruption and before shutting down for manual reset or fault correction. Provide for restarting during deceleration without damage to the controller, motor, or load.

K. Operation and Maintenance Features: Include:

1. Status Lights: Door-mounted LED indicators to indicate power on, run, overvoltage, line fault, overcurrent, and external fault.

2. Elapsed Time Meter.

3. Panel-Mounted Operator Station: Start-stop and auto-manual selector switches with manual speed control potentiometer.

L. Acceptable Manufacturers: Subject to compliance with requirements.

1. ABB Power Distribution, Inc.

2. Square D Co.

2.7 ACCESS PANELS

A. Manufacturers: Inryco/Milcor, Bilco, Elmdor, Karp, Potter-Roemer or approved equal. Inryco/Milcor Style DW, K, or M panels as required by construction.

B. Construction: Flush style, fire rated in fire rated partitions and ceilings. Provide flush key cylinder locks on all access panels less than 8' above the floor in public spaces. Turn keys over to Owner at project completion. Screwdriver latches on all others.

2.8 EXPANSION JOINTS AND LOOPS

A. Flexible Expansion/Seismic Loop: Factory fabricated assembly consisting of two elbows and return bend or three elbows, and two lengths of flexible hose to allow free movement in three axis. Return bend or elbow shall include a drain/vent fitting. Hose shall be corrugated metal style with metal overbraid compatible with the piping materials. Connections to match piping system except connection 2” and larger shall be flanged style. Metraflex “Metraloop” or Unisource “Uni-loops”.

2.9 METERS AND GAUGES

A. General: Install meters and gauges where shown on the plans or specified elsewhere in these specifications.

B. Pressure-Temperature Test Plugs:

1. ¼” or ½” NPT fitting of solid brass capable of receiving either an 1/8” OD pressure or temperature probe and rated for zero leakage from vacuum to 1000 psig. Neoprene valve core for temperatures to 200 deg. F., Nordel to 350 deg. F.

2. Provide for each test plug a pressure gauge adapter with 1/16” or 1/8” OD pressure probe.

2-17-25 23 05 00 - 10

3. Furnish a test kit containing one 2-1/2” dial pressure test gauge of suitable range, one gauge adapter with 1/16” or 1/8” OD probe and two 5” stem pocket test thermometers – one 0 to 220 degrees F and one 50 to 550 degrees F. Turn the kit over to the Owner’s Designated Point of Contact.

4. Cisco “P/T Plugs,” Peterson “Pete’s Plug” or approved equal.

C. Thermometers: Liquid-in-glass, adjustable stem, separable sockets, plus 40 to 240 degrees F range (unless indicated otherwise). Weiss numbers are listed.

Equivalent Taylor, Trerice, Weksler or approved equal.

1. Wide case (9”) in equipment rooms and all major equipment items. Weiss

“9VS” Series.

2. Narrow case (7”) in all other locations. Weiss “7VS” Series.

D. Pressure Gauges: Install on suction and discharge of all pumps and where shown on Plans 4-1/2” dial, 0-100 psig graduation pressure gauges with Ashcroft No.

1106 pulsation dampers and stop cocks. Weiss NF4UGY-1 or equivalent Ashcroft, Marsh, Trerice, Weksler.

2.10 VALVES

A. General: Provide factory fabricated valves of the type, body material, temperature and pressure class, and service indicated. Bronze gate, globe and check valves shall comply with MSS-SP-80. Ball valves shall comply with MSS- SP-110. Iron gate and globe valves shall comply with MSS-SP-70. Iron check valves shall comply with MSS-SP-71. Butterfly valves shall comply with MSS- SP-67. Valve size same as connecting pipe size.

B. Acceptable Manufacturers: Milwaukee, Crane, Grinnell, Nibco, Hammond, Stockham, Legend, Apollo, Watts, and Walworth. Grooved end valves Victaulic, Tyco-Grinnell, Gruvlock, or approved equal. NIBCO numbers are given except as noted. Where possible, provide valves from a single manufacturer.

C. Valve Styles: See individual Division 23 sections for valve styles.

D. Butterfly Valve Operators: Locking lever for shut-off service; “Memory Stop” for lever handle with 10-position throttling plate for throttling service; gear operator with babbitt sprocket rim for chain-operated valves and gear operators on all 8” or larger valves.

E. Butterfly Valve Style: Lug-type with cap screws for all valves utilized for equipment isolation for servicing. Lug and grooved style valves shall be capable for use as isolation valves and recommended by manufacturer for dead-end service at full system pressure.

F. Insulated Valves: Install extended-stem valves in all piping specified as insulated, and arrange in the proper manner to receive insulation.

G. Multifunction Valves: Valves incorporating multiple functions including control valves, strainers, drain valves with retained caps, air vent valves, P/T ports, unions, pump flanges, check valves, and balancing valves are acceptable.

Webstone, Nexus, Flow Design, Apollo, or approved equal.

2-17-25 23 05 00 - 11

H. Mechanical Actuators: Provide mechanical actuators with chain operators where indicated, where valves 4" and larger are mounted more than 7' above the floor, and where manual operation is difficult because of valve size, pressure differential or other operating conditions. Drop chains to 6'-6" above the floor.

I. Selection of Valve Ends (Pipe Connections): Select and install valves with ends matching the types of pipe/tube connections.

2.11 HANGERS AND SUPPORTS

A. General: Provide factory-fabricated horizontal piping hangers, clamps, hanger rod, inserts, supports, etc., of the indicated MSS type and size. The Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry Practice SP-58 and SP-69 are referenced in this section.

B. Manufacturers: B-Line, Carpenter & Paterson, Grinnell, Michigan, Superstrut, Tolco, Erico, or approved equal. Grinnell figure numbers in parentheses where applicable (or other manufacturers as noted).

C. Corrosion Protection: Provide materials which are zinc plated or factory painted to prevent corrosion. Prevent electrolysis in the support of copper tubing by the use of hangers and supports which are copper plated, plastic coated, or by other recognized industry methods.

D. Seismic Requirements: Provide seismic restraints in accordance with OSSC

Section 1613. Design restraint systems in accordance with "Seismic Restraint Manual: Guidelines for Mechanical Systems," Second Edition, 1998, SMACNA, or “A Practical Guide to Seismic Restraint” ASHRAE RP-812, 1999.

E. Horizontal Piping Hangers and Supports:

1. Adjustable Clevis Hanger: MSS Type 1 (Fig. 260).

2. Adjustable Band Hanger: MSS Type 7 (Fig. 97), fabricated from steel.

3. Adjustable Swivel-Band Hanger: MSS Type 10 (Fig. 70).

4. Clamp: MSS Type 4 (Fig. 212, 216).

5. Double-Bolt Clamp: MSS Type 3 (Fig. 295A, 295H), including pipe spacers.

6. Adjustable Saddle-Support: MSS Type 36 (Fig. 258) and MSS Type 37

(Fig. 259), including saddle, pipe and reducer. Fabricate base-support from steel pipe and include cast-iron flange or welded-steel plate.

7. Channel Support System: Galvanized, 12 gauge channel and bracket support systems, single or double channel as indicated on the Plans or as required by piping and equipment weights. Grinnell "Power Strut" channel. Acceptable Manufacturers: Super Strut, Globestrut, Erico, Bee, Kindorf or Unistrut or approved equal.

8. Rooftop Pipe Stands: MIRO Industries model 24-R, Erico Pipe Pier, PHP, or approved equal.

F. Vertical Pipe Clamps:

1. Two-Bolt Riser Clamp: MSS Type 8 (Fig. 261).

2. Four-Bolt Riser Clamp: MSS Type 42 include pipe spacers at inner bolt-holes.

2-17-25 23 05 00 - 12

G. Hanger Attachment:

1. Hanger Rod: Rolled threads, zinc plated. Right hand threaded.

2. Turnbuckles: MSS Type 13 (Fig. 230).

3. Weldless Eye-Nut: MSS Type 17 (Fig. 290).

4. Malleable Eye-Socket: MSS Type 16 (Fig. 110R).

5. Clevises: MSS Type 14 (Fig. 299).

H. Building Attachments:

1. Concrete Inserts: MSS Type 18 (Fig. 282), steel or Grinnell Power-Strut PS349 continuous channel. Acceptable Manufacturers: Michigan Hanger, Globestrut, Unistrut, Super Strut.

2. Clamps: MSS Type 19 (Fig. 285, 281), Type 20, 21 (Fig. 225, 226, 131), Type 23 (Fig. 86, 87, 88), Type 25 (Fig. 227), Type 27 through 30 where applicable.

2.12 IDENTIFICATION MARKERS

A. Pipe Markers:

1. Adhesive pipe markers of width, letter size and background color conforming to ANSI A13.1.

2. Acceptable Manufacturers: Brady B946 with arrow banding tape or similar Seaton, Zeston, MSI.

B. Nameplates:

1. Engraved nameplates, 1/16" thick, laminated 2-ply plastic, bottom ply white, outer ply black, letters formed by exposing bottom ply.

2. Size: 2" by 4" nameplates with 1/4" high letters.

C. Valve Tags:

1. 2" diameter, 18-gauge polished brass tags with 3/16" chain hole and 1/4" high stamped, black-filled service designation.

2. Acceptable Manufacturers: Seaton, Brady, MSI.

2.13 PENETRATION FIRE STOPPING

A. Through-penetration fire stopping system tested and listed by Underwriters Laboratories. Hilti, 3M, Metacaulk, SpecSeal, or approved equal.

B. Select system for proper application based on wall construction, type of penetrating item, wall rating, etc.

PART 3 - EXECUTION

3.1 LAYOUT AND COORDINATION

A. Site Examination: Before starting work, carefully examine site and all contract Plans in accordance with the General Conditions, Section A – General Provisions, Sub-Section A.4 – Examination of Plans, Specifications, and Site, Entire Section.

2-17-25 23 05 00 - 13

B. Utility Locations: The location of existing utilities, wires, conduits, pipes, ducts, or other service facilities are shown in a general way only on the Plans and are taken from existing records. Ascertain whether any additional utilities other than those shown on the plans may be present and determine the exact location and elevations of all utilities prior to commencing installation.

C. Sleeves, Inserts, Cast-in-Place Work: Provide sleeves, inserts, anchoring devices, cast-in-place work, etc. which must be set in concrete sequenced at the proper time for the project schedule.

D. Coordination:

1. The drawings are based on equipment of a certain manufacturer and may be identified as such. Where alternate manufacturers or Approved Equals are incorporated into the work, any required design changes are the responsibility of the Contractor in accordance with the General Conditions, Section B – Administration of the Contract, Sub-Section B.1.9

– Substitutions. Such changes may include changes in utility or system connection sizes, location, or orientation, service clearances, structural support or acoustic considerations.

2. Where the work must be sequenced and positioned with precision in order to fit into the available space, prepare accurate scale shop drawings showing the actual physical dimensions required for the installation and submit prior to purchase/fabrication/installation of any of the elements involved in the coordination in accordance with the General Conditions, Section A – General Provisions, Sub-Section A.4 – Examination of Plans, Specifications, and Site, Entire Section.

3. Cooperate with other trades in furnishing material and information for sleeves, bucks, chases, mountings, backing, foundations and wiring required for installation of mechanical items.

4. Coordinate all work with other trades and determine in advance where interfacing of the mechanical work and other work are required to be connected together. Provide all materials and equipment to make those connections. Submit shop drawings showing required connections where special conditions exist.

E. Discrepancies: Report immediately any error, conflict or discrepancy in Plans, Specifications and/or existing conditions per The General Conditions, Section A – General Provisions, A.4 – Examination of Plans, Specifications, & Site. Do not proceed with any questionable items of work until clarification of same has been made. Should rearrangement or re-routing of piping be necessary, provide for approval the simplest layout possible for that particular portion of the work.

3.2 CONTINUITY OF EXISTING SERVICES

A. Existing water, power, heat, ventilation, air conditioning and other services shall remain in service during new construction work. Coordinate any interruption of these services with the Owner's Designated Point of Contact a minimum of three

(3) business days in advance. Arrange work to minimize number and extent of all interruptions.

2-17-25 23 05 00 - 14

B. Protect from damage active utilities existing and evident by reasonable inspection of the site whether shown or not on the Plans Protect, relocate or abandon utilities encountered in the work which are not shown on the Plans or evident by inspection of the work as directed by the Owner Designated point of Contact.

Maintain continuity of all utility services to existing buildings.

C. All necessary service interruptions of utilities shall be scheduled with the Owner’s

Designated Point of Contact. Minor interruptions shall require a minimum of three (3) business days prior notification. Major shut down of any utility is to be scheduled between the hours of 5:30 p.m. and 6:00 a.m. and shall require a minimum of five (5) business days prior notice.

3.3 EQUIPMENT REMOVAL

A. All removed mechanical equipment is the property of the Owner unless indicated otherwise. Disconnect Salvage and return to the owner all such equipment.

B. Disable electrical circuits by disconnection of both ends and make safe with wire nuts or other approved methods. Remove wire and conduit to concealed locations.

C. Reused Equipment: Reconnect piping, wiring and/or controls to restore original equipment functions unless indicated otherwise.

3.4 MECHANICAL EQUIPMENT WIRING

A. Provide all mechanical equipment motors, automatic temperature, limit, float and similar control devices required, with wiring complete from power source indicated on Electrical Drawings.

B. Provide properly rated motor overload and undervoltage protection and all manual or automatic motor operating devices for all mechanical equipment.

C. Equipment and systems shown on the Plans and/or specified, are based upon requirements of specific manufacturers which are intended as somewhat typical of several makes which may be approved. Provide all field wiring and/or devices necessary for a complete and operable system including controls for the actual selected equipment/system.

D. Provide all starters for mechanical motors. Review Electrical Specifications and

Drawings to determine which mechanical motor starters shall be provided under the Electrical Specification Sections and provide all others.

3.5 MECHANICAL EQUIPMENT WIRING

A. Provide all mechanical equipment motors, automatic temperature, limit, float and similar control devices required, with wiring complete from power source indicated on Electrical Drawings.

B. Provide properly rated motor overload and undervoltage protection and all manual or automatic motor operating devices for all mechanical equipment.

2-17-25 23 05 00 - 15

C. Equipment and systems shown on the Drawings and/or specified, are based upon requirements of specific manufacturers which are intended as somewhat typical of several makes which may be approved. Provide all field wiring and/or devices necessary for a complete and operable system including controls for the actual selected equipment/system.

D. Provide all starters for mechanical motors not included in the motor control center. Review Electrical Specifications and Drawings to determine which mechanical motor starters will be provided under the Electrical Specification Sections and provide all others.

3.6 GENERAL INSTALLATION

A. Locating and Positioning Equipment: Observe all Codes, Regulations and good common practice in locating and installing mechanical equipment and material so that completed installation presents the least possible hazard. Maintain adequate clearances for repair and service to all equipment and comply with Code requirements.

B. Arrangement: Arrange piping parallel with primary lines of the building construction, and with a minimum of 7' overhead clearance in all areas where possible. Unless indicated otherwise, conceal all piping. Locate operating and control equipment properly to provide easy access, and arrange entire mechanical work with adequate access for operation and maintenance. Give right-of-way to piping which must slope for drainage. Set all equipment level or as recommended by manufacturer. Under no conditions shall beams, girders, footings or columns be cut for mechanical items. Casting of pipes into concrete is prohibited unless so shown on Drawings.

C. Drip Pans: Provide drip pans under all above ceiling evaporator units and cooling coils. Locate pan immediately below piping and equipment, and extend a minimum of 6" on each side and lengthwise 18" beyond equipment being protected. Fabricate pans 2" deep, of reinforced 20 gauge galvanized sheet metal with watertight seams and rolled or hemmed edges. Provide 3/4" drainage piping, properly discharged to over floor drain or as shown on the Drawings. Comply with Mechanical Code for overflow protection and pipe sizing.

E. Adjusting: Adjust and calibrate all automatic mechanical equipment, temperature controls, float devices, etc. Adjust flow rates at each piece of equipment or fixture.

F. Building Vapor Barrier: Wherever the building insulation vapor barrier is penetrated by piping, hangers, conduits, etc., provide clear self-adhesive tape recommended by the insulation manufacturer around the penetrations.

G. Concrete Work: Coordinate with other work, particularly other concrete work and accessories. Comply with applicable provisions of this Section for mechanical work concrete, including formwork, reinforcement, mix design, materials, admixtures, accessories, (including waterstops), placing of wet concrete, finishing, curing, protecting, testing, submittals and other requirements of the concrete work.

2-17-25 23 05 00 - 16

3.7 VALVE INSTALLATION

A. General: Comply with the following requirements:

1. Install valves where required for proper operation of piping and isolation of equipment, including valves in branch lines where necessary to isolate sections of piping, and where shown on the drawings. Install valves at low points in piping systems that must be drained for service or freeze protection.

2. Locate valves in accessible spaces (or behind access panels) and so that separate support can be provided when necessary.

3. Install valves with stems pointed up, in the vertical position where possible, but in no case with stems pointed downward from a horizontal plane.

B. Insulated Valves: Install extended-stem valves in all piping specified as insulated, and arrange in the proper manner to receive insulation.

C. Valve Access: Provide access panels to all valves installed behind walls, in furring or otherwise inaccessible.

D. Lubricant-Seal: Select and install plug valves with lubricant-seal except where frequent usage is indicated or can be reasonably expected to occur.

3.8 INSTALLATION OF HANGERS AND SUPPORTS

A. General: Proceed with the installation of hangers, supports and anchors only after the required building structural work has been completed in areas where the work is to be installed. Correct inadequacies including (but not limited to) the proper placement of inserts, anchors and other building structural attachments.

1. Install hangers, supports, clamps, and attachments to support piping and equipment properly from the building structure. Use no wire or perforated metal to support piping, and no supports from other piping or equipment.

For exposed continuous pipe runs, install hangers and supports of the same type and style as installed for adjacent similar piping.

2. Prevent electrolysis in the support of copper tubing by the use of hangers and supports which are copper plated or by other recognized industry methods.

3. Support fire sprinkler piping independently of other piping and in accordance with NFPA Pamphlet 13.

4. Arrange supports to prevent eccentric loading of joists and joist girders.

Locate supports at panel points only.

B. Provisions for Movement:

1. Install hangers and supports to allow controlled movement of piping systems and to permit freedom of movement between pipe anchors, and to facilitate the action of expansion joints, expansion loops, expansion bends and similar units. Install specified seismic restraints to restrict excessive movement.

2. Install hangers and supports so that equipment and piping live and dead loading and stresses from movement will not be transmitted to connected equipment.

2-17-25 23 05 00 - 17

3. Install hangers and supports to provide the indicated pipe slopes, and so that maximum pipe deflections allowed by ANSI B31 are not exceeded.

Comply with the following installation requirements:

a. Clamps: Attach clamps, including spacers (if any), to piping outside the insulated piping support. Do not exceed pipe stresses allowed by ANSI B31.

b. Insulated Pipe Supports: Insulated pipe supports shall be supplied and installed on all insulated pipe and tubing.

c. Load Rating: All insulated pipe supports shall be load rated by the manufacturer based upon testing and analysis in conformance with ASME B31.1, MSS SP-58, MSS SP-69 and MSS SP-89.

d. Support Type: Manufacturer's recommendations, hanger style and load shall determine support type.

e. Insulated Piping Supports: Where insulated piping with continuous vapor barrier or where exposed to view in finished areas is specified, install hard maple wood insulation shields (Elcen Fig. 216) or steel pipe covering protection shields (MSS type 39) at each hanger.

C. Pipe Support:

1. Vertical Spacing: Support at base, at equivalent of every floor height

(maximum 10' as required by Code) and just below roof line.

2. Screwed or Welded Steel or Copper Piping: Maximum hanger spacing shall be as follows:

Steel Copper 1-1/4" and smaller 7' span 6' span 1-1/2" pipe 9' span 6' span 2" pipe 10' span 10' span 2-1/2" & larger 12' span 10' span

3. Polyvinyl Chloride, Polypropylene and Other Plastic Pipe: Maximum hanger spacing and minimum rod diameters as follows:

a. Continuous support 1/2" to 4" pipe size Fee & Mason No. 109 channels with Fee & Mason No. 108 hanger. Lay pipe directly into the channel with fittings or couplings placed in spaces between channel sections. Secure piping to the channel at intervals between hangers with a few turns of vinyl electrical tape.

b. Non-Continuous Support: Maximum 4' spans or shorter if required by manufacturer for temperatures and pipe schedule.

c. Arrange supports to allow free movement, but restrict upward movement of lateral runs so as not to create reverse grade on drainage pipe. Use double bolt clamp or band hanger with restraint (Tolco fig. 25).

4. Install additional hangers or supports at concentrated loads such as pumps, valves, etc. to maintain alignment and prevent sagging.

5. Support Rod: Hanger support rods sized as follows:

Pipe and Tube Size Rod Size Inches mm Inches mm 1/2” to 4” 12.7 to 101.6 3/8” 9.5 5” to 8” 127.0 to 203.2 1/2” 12.7 10” to 12” 254.0 to 304.8 5/8” 15.9

2-17-25 23 05 00 - 18

D. Adjust hangers and supports to bring piping to proper levels and elevations.

E. Provide all necessary structural attachments such as anchors, beam clamps, hanger flanges and brackets in accordance with MSS SP-69. Attachments to beams wherever possible. Supports suspended from other piping, equipment, metal decking, etc., are not acceptable.

F. Horizontal banks of piping may be supported on common steel channel member spaced not more than the shortest allowable span required on the individual pipe.

Maintain piping at its relative lateral position using clamps or clips. Allow lines subject to thermal expansion to roll axially or slide. Size channel struts for piping weights.

G. Installation of drilled-in concrete anchors shall comply with the manufacturer’s instructions for working load, depth of embedment, and spacing between anchors and from the edge of the slab. Use only wedge-style anchors.

H. Seismic Restraints: Install restraints where recommended in SMACNA "Seismic

Restraint Manual" and as required by code. Show analysis of supporting structure, anchorages, and restraints in accordance with OSSC Section 1613 and reference ASCE standard. Seismic restraint system components shall be approved by the California Office of Statewide Health Planning and Development (OSHPD). Acceptable Manufacturers: Amber/Booth, Mason Industries, Tolco, or approved equal.

3.9 HVAC SYSTEM IDENTIFICATION

A. Piping System: Indicate each pipe system by its generic name (abbreviated) as shown/scheduled/specified. Extend the existing or match Owner's color code and/or identification system. Comply with ANSI A13.1 for marker locations, letter sizes, and colors. Include arrows to show direction of flow and "Electric Traced" signs to identify heat cable wrapped piping. Locate pipe labels in accessible areas as follows:

1. Near each valve, meter, gauge, or control device.

2. Near equipment such as pumps, heat exchangers, water heaters, etc.

3. At piping branch connections.

4. At penetrations (each side) of walls, ceilings, and floors.

5. At access panels and doors.

6. At 25 foot maximum intervals. Provide a minimum of one label above each room where lift-out ceiling is installed. Reduce intervals in congested areas such as mechanical rooms.

B. Valve Identification: Tag all valves with brass disc and chain. Prepare valve charts indicating valve number, size, location, function and normal position. Use no duplicate numbers in Plumbing and Heating systems. Mount glazed frames containing one set of valve charts in the building mechanical room.

C. Equipment: Provide engraved plastic-laminate signs at locations of major equipment such as heat exchangers, pumps, etc. Identify equipment in field same as on drawings. Permanently mount in an appropriate and effective location.

2-17-25 23 05 00 - 19

D. Operation Tags: Where needed for proper and adequate information on operation and maintenance of mechanical systems, provide tags of plasticized card stock, either pre-printed or hand printed to convey the message; example: "DO NOT

CLOSE THIS VALVE EXCEPT WHEN THE PUMP IS OFF."

3.10 EQUIPMENT CONNECTIONS

A. Provide complete connections for all items of equipment requiring such connections, including incidental piping, fittings, trim and labor necessary for a finished working installation.

B. Verify the rough-in and finish requirements for all equipment provided under other Divisions of the work and requiring HVAC piping or duct connections with equipment supplier and installer prior to rough-in.

3.11 PROTECTION

A. Protect all work and materials against loss or damage in compliance with the General Conditions, Section F – Job Site Conditions, F.2 – Protection of Workers, Property, and the Public.

3.12 CUTTING AND PATCHING

A. General: Comply with the General Conditions, Section F – Job Site Conditions, F.3 – Cutting and Patching.

3.13 PIPE PENETRATION FIRE STOPPING

A. Install as recommended by manufacturer and in accordance with the product’s UL listing. Below are the minimum installation requirements.

1. Install specified penetrating item(s) with required annular spacing in proper size wall or floor opening. Support penetrating item(s) adequately on both sides of construction.

2. Clean all opening and penetrating item surfaces in penetration area to remove loose debris, dirt, oil, wax, grease, old caulking, etc.

3. If needed or required for gypsum or concrete block walls, install specified galvanized steel wire mesh or sleeve recessed and centered inside wall around penetrating item(s) so that it is snug against perimeter of opening.

4. When required, install specified type and depth of backing material in annular space, recessed to required fill depth of fire stopping caulking.

5. Gun, trowel, and/or pump fire stopping sealant to specified depth in annular space around penetrating item(s). Trowel sealant surfaces flush with wall or floor surfaces to a smooth, defect-free finish. Where required, apply specified size caulking bead around penetrating item(s) at zero annular contact areas and tool smooth.

3.14 HVAC WORK CLOSEOUT

A. General: Refer to the General Conditions, Section K – Contract Close Out for general closeout requirements. Calibrate all equipment requiring same. Complete each system as shown or specified herein and place in operation except where only roughing-in or partial systems are called for. Each system shall be tested and left in proper operation free of leaks, obstructions, or contamination.

2-17-25 23 05 00 - 20

B. Record Drawings: Submit record set of drawings as previously specified in this

Section.

C. Closeout Equipment/Systems Operations: Sequence operations properly so that work of project shall not be damaged or endangered. Coordinate with seasonal requirements. Operate each item of equipment and each system in a test run of appropriate duration with the Owner’s Designated Point of Contact present, and with the Owner's operating personnel present, to demonstrate sustained, satisfactory performance.