SOW Replace Chiller 1 R7 2023 01 31.pdf

SOW Replace Chiller 1 R7 2023 01 31 Page 1 of 28

Statement of Work (SOW) Replace Chiller 1

Project Number 564-22-809 Veterans Health Care System of the Ozarks (VHSO)

Fayetteville, Arkansas

Contractor must furnish all management, supervision, labor, material, equipment, tools, supplies, consumables, parts, and related services, in accordance with the

SOW, drawings, and specifications to be complete and working replacement for centrifugal Chiller 1 located in Building 29 (B-29), Air Conditioning (AC) plant.

Electronic Portable Document Format (.pdf) copies of drawings and specifications to this work will be furnished by VA upon Contractor’s written request to the Contracting

Officer (CO). Hard copies of SOW, drawings, and specifications must be at no additional cost to the Government. Contractor must verify existing and new dimensions, locations, and quantities to complete this project located on the VHSO

Main Campus 1100 N. College Avenue, Fayetteville, AR 72703.

I. GENERAL:

A. Any provision or partial provision of the Contract, including but not limited to, drawings and specifications that is not consistent with this SOW will be null and void only to the extent of the inconsistency. All other provisions or partial provisions of the Contract, including but not limited to, drawings and specifications, must remain in full force and effect.

B. Safety must be the Contractor’s highest priority.

C. Contractor must have the following requirements completed prior to beginning site activities:

1. Negative TB Test, within the past calendar year.

2. Annual influenza shot is required for all staff.

3. While on campus, Contractor must wear a visible VHSO issued identity Badge and a wrist band/device.

4. Mask must be replaced when damaged or soiled.

5. Daily visit at check-in station (Building 1-ED, Building 21-North

Entrance, and Building 44-West Entrance) for COVID screening are performed on the VHSO campus and must be performed immediately

SOW Replace Chiller 1 R7 2023 01 31 Page 2 of 28 when the Contractor arrives on site. If at any time an employee of the

Contractor firm is found in deficiency of the above listed, then a stop work order will be issued for the safety of VHSO patients. Any further questions please reference the below document(s).

6. Minimum OSHA 10 certification.

D. Period of Performance: Two Hundred Seventy (270) calendar days.

E. This project must be turn-key in accordance with this SOW, drawings, and specifications to be complete and working system(s).

F. VHSO facility must continue to operate during the contract Period of

Performance, including but not limited to, the mechanical and electrical systems.

G. Contractor’s work must be conducted with the least amount of disruption to the VHSO facility.

H. Contractor must submit to the CO and CO Representative (COR) a

Schedule of Values (SOV), Field Office Expenses, and a Project Schedule

(including Phasing Control Plan if applicable) in accordance with this SOW, drawings, and specifications no later than ten (10) calendar days after Notice to

Proceed (NTP) for COR written approval. The Project Schedule must contain provisions, including but not limited to, staging equipment and materials for interruption of any utility and working extended hours to meet the project requirement.

I. Contractor must submit to the CO and CO Representative (COR) all submittals no later than ten (10) calendar days after NTP for COR written approval.

J. Prior to the start of job site activities, together the Contractor and COR must conduct a site survey to identify and review specific work and differing site conditions.

K. VHSO utilities and work areas may not be immediately available to the

Contractor and the Contractor must be flexible in the project schedule at no additional cost to the Government.

L. Contractor materials, equipment, tools, supplies, consumables, and parts must not be left unattended within a common work area. When working in

SOW Replace Chiller 1 R7 2023 01 31 Page 3 of 28 common areas, there must be a minimum of two (2) contractor employees present to ensure that Contractor building materials, including but not limited to, equipment, tools, and supplies are not accessible to others.

M. Warranty: Contractor must guarantee workmanship for a period of one (1) year after COR written acceptance of work. Contractor must furnish a minimum one (1) year parts and labor warranty on equipment, components, and materials furnished plus chiller manufacturer’s ten (10) year parts and labor warranty.

N. Emergency Service: Contractor emergency service must be available 24 hours per day. Contractor must respond on-site to emergency service calls within two (2) hours of notification. Contractor must have the issue(s) corrected or a plan in place (awaiting parts) within four (4) hours of arrival at job site. Any temporary repairs must have prior written approval by the Chief, Engineering

Service or their designated representative.

II. QUALIFICATIONS OF CONTRACTOR

A. Contractor must possess a State of Arkansas Class A HVAC Contractor

License and a State of Arkansas Electrical Contractor License.

B. Contractor must present documentation of no less than ten (10) years of centrifugal chiller installation, service and repair experience in a healthcare setting.

III. SCOPE OF WORK:

A. Contractor except as noted otherwise must:

1. Remove and properly dispose:

a) R-123 refrigerant from existing York Chiller 1 and furnish documentation of refrigerant deposited with reclamation center.

b) Refrigerant oil.

c) Electrical service for Chiller 1 from Motor Control Center to

Chiller 1.

(1) Flexible conduit (fixture whip).

(2) Conductors.

(3) Existing underground rigid conduit to remain.

d) Chilled water supply and return piping systems.

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e) Condenser water supply and return piping systems.

f) Chiller 1.

g) Alerton VLX global controller.

2. Furnish equipment, materials, and install:

a) One (1) new chiller, York YMC2 Centrifugal Liquid Chiller or equal. The unit shall produce a capacity of 600 tons, cooling 1435 gallons per minute (gpm) of WATER from 54.00 to 44.00 °F when supplied with 1820 gpm of condenser water at 85.00°F. Power input shall not exceed 345.3 KW with an IPLV of 0.3074. The cooler shall be selected for 0.000100 fouling factor and a maximum liquid pressure drop of 21.8 ft H2O. Water side shall be designed for 150 pounds per square inch gauge (psig) working pressure.

The condenser shall be selected for 0.000250 fouling factor and maximum liquid pressure drop of 19.6 ft H2O. Water side shall be designed for 150 pounds per square inch gauge (psig) working pressure. Power shall be supplied to the unit at 460 volts - 3 phase

- 60 Hertz. The chiller shall use HFC R-134a.

The unit shall be completely factory-packaged including evaporator, unit mounted Optispeed variable speed drive, condenser, sub-cooler, compressor, hermetic motor, Optiview control center, and all interconnecting unit piping and wiring. The chiller shall be painted prior to shipment.

Performance shall be certified in accordance with ARI Standard

550/590. Only chillers that are listed in the ARI Certification

Program for Centrifugal and Rotary Screw Water Chillers are acceptable.

The initial charge of refrigerant shall be supplied, shipped in containers and cylinders for field installation or factory charged in the chiller.

The compressor shall be a single-stage centrifugal type powered by a high-speed electric motor. A cast aluminum, fully shrouded

SOW Replace Chiller 1 R7 2023 01 31 Page 5 of 28 impeller shall be mounted directly to the motor shaft. The impeller shall be designed for balanced thrust, dynamically balanced and overspeed tested for smooth, vibration-free operation.

Compressor castings shall be designed for 235 psig working pressure and hydrostatically pressure tested at 355 psig for HFC R-

134a units.

Capacity control shall be achieved by the combined use of variable speed and variable diffuser geometry to provide fully modulating control from maximum to minimum load while maintaining constant chiller leaving water temperature.

The compressor motor shall be a hermetic, oil free, permanent magnet type directly coupled to the compressor. The motor will be bolted to a cast iron adapter plate mounted on the compressor to provide factory alignment of the shaft. The motor shaft shall be supported on active magnetic radial and thrust bearings. Magnetic bearing control shall be equipped with auto vibration reduction and balancing systems. During a power failure event, the magnetic bearings shall remain active throughout the compressor coast down. Rolling element bearings shall be provided as a backup to the magnetic bearings designed for emergency touch down situations. Motor stator and rotor shall be equipped with a pressure driven refrigerant cooling loop to maintain acceptable operating temperatures.

A variable speed drive shall be factory installed on the chiller. It will vary the compressor motor speed by controlling the frequency and voltage of the electrical power to the motor. The capacity control logic shall automatically adjust motor speed and compressor diffuser geometry for maximum part-load efficiency by analyzing information fed to it by sensors located throughout the chiller.

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Drive shall be PWM type utilizing IGBT’s with a power factor of 0.97 or better at all loads and speeds.

The variable speed drive shall be unit mounted in a NEMA 1 enclosure with all power and control wiring between the drive and chiller factory installed. Field power wiring shall be a single point connection and electrical lugs for incoming power wiring will be provided. The entire chiller package shall be UL listed.

The following features will be provided:

(1) Door interlocked circuit breaker capable of being padlocked.

(2) Ground fault protection.

(3) Over voltage and under voltage protection.

(4) 3-phase sensing motor over current protection.

(5) 3-phase sensing input over current protection.

(6) Single phase protection.

(7) Insensitive to phase rotation.

(8) Over temperature protection.

(9) IEEE Std. 519-1992 compliance

(10) Digital readout at the chiller unit control panel of output frequency, output voltage, 3-phase output current, input

Kilowatts and Kilowatt-hours, self-diagnostic service parameters. Separate meters for this information will not be acceptable.

(11) KW Meter - The unit’s input power consumption will be measured and displayed digitally via the unit’s control panel.

The KW meter accuracy is typically +/- 3% of reading. KW meter scale is 0 - 788 KW

(12) KWh Meter – The unit’s cumulative input power consumption is measured and displayed digitally via the

SOW Replace Chiller 1 R7 2023 01 31 Page 7 of 28 unit’s control panel. The KWh meter is resetable and its accuracy is typically +/- 3% of reading. KWh meter scale is 0

– 999,999 kWh.

(13) Ammeter – Simultaneous three-phase true RMS digital readout via the unit control panel. Three current transformers provide isolated sensing. The ammeter accuracy is typically +/- 3% of readming. Ammeter scale is 0

- 545 A RMS.

(14) Voltmeter – Simultaneous three-phase true RMS digital readout via the unit control panel. The voltmeter accuracy is typically +/- 3% of reading. Voltmeter scale is 0 – 670 VAC.

(15) Elapsed Time Meter – Digital readout of the unit’s elapsed running time (0 – 876,600 hours, resetable) is displayed via the unit control panel.

Evaporator shall be a shell-and-tube, hybrid falling film type designed for 235 psig working pressure on the refrigerant side.

Shell shall be fabricated from rolled carbon steel plate with fusion welded seams; have carbon steel tube sheets, drilled and reamed to accommodate the tubes; and intermediate tube supports spaced no more than four feet apart. The refrigerant side shall be designed, tested and stamped in accordance with ASME Boiler and

Pressure Vessel Code, Section VIII- Division 1. Tubes shall be high-efficiency, internally and externally enhanced type having plain copper lands at all intermediate tube supports to provide maximum tube wall thickness at the support area. Each tube shall be roller expanded into the tube sheets providing a leak-proof seal and be individually replaceable. Water velocity through the tubes shall not exceed 12 fps. A liquid level sight glass will be located on the side of the shell to aid in determining proper refrigerant charge. A suction baffle eliminator will be located above the tube bundle to prevent liquid refrigerant carryover to the compressor. The

SOW Replace Chiller 1 R7 2023 01 31 Page 8 of 28 evaporator shall have a refrigerant relief device sized to meet the requirements of ASHRAE 15 Safety Code for Mechanical

Refrigeration.

Water boxes shall be removable to permit tube cleaning and replacement. Stubout water connections having victaulic grooves will be provided. Waterboxes shall be designed for 150psi (10.3 bar) design working pressure and tested at 225 psig (15.5 bar).

Vent and drain connections with plugs will be provided on each water box. Low flow protection shall be provided by a thermal-type flow sensor, factory mounted in the water nozzle connection and wired to the chiller control center.

Condenser shall be of the shell-and-tube type, designed for 235 psig working pressure on the refrigerant side. Shell shall be fabricated from rolled carbon steel plate with fusion welded seams;

have carbon steel tube sheets, drilled and reamed to accommodate the tubes; and intermediate tube supports spaced no more than four feet apart. The refrigerant side shall be designed, tested and stamped in accordance with ASME Boiler and Pressure Vessel

Code, Section VIII- Division 1. Tubes shall be high-efficiency, internally and externally enhanced type having plain copper lands at all intermediate tube supports to provide maximum tube wall thickness at the support area. Each tube shall be roller expanded into the tube sheets providing a leak-proof seal and be individually replaceable. Water velocity through the tubes shall not exceed 12 fps.

Water boxes shall be removable to permit tube cleaning and replacement. Stubout water connections having ANSI/AWWA C-

606 grooves will be provided. Waterboxes shall be designed for 150 psi (10.3 bar) design working pressure and tested at 225 psig (15.5 bar). Vent and drain connections with plugs will be provided on each water box.

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Refrigerant flow to the evaporator shall be controlled by a variable orifice for improving unloading capabilities. The variable orifice control shall automatically adjust to maintain proper refrigerant level in the condenser and evaporator.

This shall be controlled by monitoring refrigerant liquid level in the condenser, assuring optimal subcooler performance.

The chiller shall be controlled by a stand-alone microprocessor-based control center. The chiller control center shall provide control of chiller operation and monitoring of chiller sensors, actuators, relays and switches.

The control panel shall include a 10.4 in. diagonal color liquid crystal display (LCD) surrounded by “soft“keys which are redefined based on the screen displayed at that time.

This shall be mounted in the middle of a keypad interface and installed in a locked enclosure. The screen shall detail all operations and parameters, using a graphical representation of the chiller and its major components.

Panel verbiage shall be available in English as standard and in other languages as an option with English always available. Data shall be displayed in either English or Metric units. Smart Freeze Point Protection shall run the chiller at

36.00°F leaving chilled water temperature, and not have nuisance trips on low water temperature. The program and sensor shall monitor the chiller water temperature to prevent freeze up. When needed Hot Gas Bypass is available as an option. The panel shall display countdown timer messages, so the operator knows when functions are starting and stopping. Every programmable point shall have a pop-up screen with the allowable ranges, so that the chiller cannot be programmed to operate outside of its design limits.

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The chiller control panel shall also provide system operating information including but not limited to:

(1) return and leaving chilled liquid temperature

(2) return and leaving condenser liquid temperature

(3) evaporator and condenser saturation temperature

(4) evaporator and condenser pressure

(5) compressor discharge temperature

(6) percent full load motor current

(7) motor frequency

(8) magnetic bearing levitation status

(9) magnetic bearing temperatures

(10) operating hours

(11) number of compressor starts

2. Digital programming of setpoints through the universal keypad including:

(1) leaving chilled liquid temperature

(2) percent current limit

(3) pull-down demand limiting

(4) six-week schedule for starting and stopping the chiller, pumps and tower

(5) remote reset temperature range

3.Status messages indicating:

(6) system ready to start

(7) system running

(8) system coast down

(9) system safety shutdown-manual restart

(10) system cycling shutdown-auto restart

(11) MBC startup

(12) start inhibit

The text displayed within the system status and system details field shall be displayed as a color-coded message to indicate

SOW Replace Chiller 1 R7 2023 01 31 Page 11 of 28 severity: red for safety fault, orange for cycling faults, yellow for warnings, and green for normal messages.

Safety shutdowns enunciated through the display and the status bar, and consist of system status, system details, day, time, cause of shutdown, and type of restart required. Safety shutdowns shall include:

(1) evaporator – low pressure

(2) evaporator – transducer or leaving liquid probe

(3) evaporator – transducer or temperature sensor

(4) condenser – high pressure contacts open

(5) condenser – high pressure

(6) condenser – pressure transducer out of range

(7) auxiliary safety – contacts closed

(8) discharge – high temperature

(9) discharge – low temperature

(10) control panel – power failure

(11) watchdog – software reboot

(12) MBC – Internal Fault

(13) MBC – High Bearing Temperature

(14) MBC – Cable Fault

(15) MBC – Speed Signal Fault

(16) MBC – Overspeed Fault

(17) MBC – Communication

(18) MBC – High Bearing Current

(19) MBC – Rotor Elongation

(20) MBC – Oscillator Fault

(21) MBC – Power Supply Fault

(22) MBC – Unauthorized Rotation

(23) MBC – No Rotation

(24) VSD Shutdown – Requesting Fault Data

(25) VSD – Stop contacts Open

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(26) VSD – DC Bus Preregulation Lockout

(27) VSD – Logic Board Plug

(28) VSD – Ground Fault

(29) VSD – Phase __ Input DCCT (A,B,C)

(30) VSD – Phase __ Motor DCCT (A,B,C)

(31) VSD – Input Current Overload

(32) VSD – 105% Motor Current Overload

(33) VSD – High Phase __ Input Baseplate Temperature

(A,B,C

(34) VSD – High Phase __ Motor Baseplate Temperature

(A,B,C)

(35) VSD – Motor or Stator Current Imbalance

(36) VSD – Motor Current THD Fault

(37) VSD – Motor Synchronization Fault

(38) VSD – Rectifier Program Fault

(39) VSD – Inverter Program Fault

Cycling shutdowns enunciated through the display and the status bar, and consists of system status, system details, day, time, cause of shutdown, and type of restart required. Cycling shutdowns shall include:

(1) multiunit cycling – contacts open

(2) system cycling - contacts open

(3) control panel - power failure

(4) leaving chilled liquid - low temperature

(5) leaving chilled liquid - flow switch open

(6) condenser – flow switch open

(7) motor controller – contacts open

(8) motor controller – loss of current

(9) MBC – Position

(10) MBC – Low Frequency Displacement

(11) MBC – Vibration

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(12) MBC – High Amplifier Temperature

(13) MBC – High DC/DC Temperature

(14) MBC – No Levitation

(15) MBC – Serial Communications Fault

(16) Power Fault

(17) Control Panel – Schedule

(18) VSD Precharge – Low DC Bus Voltage

(19) VSD – DC Bus Preregulation

(20) VSD – Logic Board Power Supply

(21) VSD – High DC Bus Voltage

(22) VSD – High Phase __ Input Current (A,B,C)

(23) VSD – High Phase __ Motor Current (A,B,C)

(24) VSD – Phase __ Input Gate Driver (A,B,C)

(25) VSD – Phase __ Motor Gate Driver (A,B,C

(26) VSD – Single Phase Input Power

(27) VSD – DC Bus Under Voltage

(28) VSD – Low Phase __ Input Baseplate Temperature

(A,B,C)

(29) VSD – Low Phase __ Motor Baseplate Temperature

(A,B,C)

(30) VSD – High Internal Ambient Temperature

(31) VSD – Serial Communications

(32) VSD – Logic Board Processor

(33) VSD – Run Signal

(34) VSD Shutdown – Requesting Fault Data

(35) VSD – Stop Contacts Open

(36) VSD – Initialization Failed

Security access to prevent unauthorized change of setpoints, to allow local or remote control of the chiller, and to allow manual operation of the prerotation vanes. Access shall be through ID and password recognition, which is

SOW Replace Chiller 1 R7 2023 01 31 Page 14 of 28 defined by three different levels of user competence: view, operator, and service.

Trending data with the ability to customize points of once every second to once every hour. The panel shall trend up to 6 different parameters from a list of over 140, without the need of an external monitoring system.

The operating program stored in non-volatile memory

(EPROM) to eliminate reprogramming the chiller due to AC power failure or battery discharge. Programmed setpoints shall be retained in lithium battery backed RTC memory for a minimum of 11 years with power removed from the system.

A fused connection through a transformer in the compressor motor starter to provide individual over-current protected power for all controls and a numbered terminal strip for all required field interlock wiring.

An RS-232 port to output all system operating data, shutdown / cycling message, and a record of the last 10 cycling or safety shutdowns to a field-supplied printer. Data logs to a printer at a set programmable interval. This data can be preprogrammed to print from 1 minute to 1 day.

The capability to interface with a building automation system to provide:

(1) remote chiller start and stop

(2) remote leaving chiller liquid temperature adjust

(3) remote current limit setpoint adjust

(4) remote ready to start contacts

(5) safety shutdown contacts

(6) cycling shutdown contacts

(7) run contacts

The services of a factory trained, field service representative will be provided to supervise the final leak

SOW Replace Chiller 1 R7 2023 01 31 Page 15 of 28 testing, charging and the initial startup and conduct concurrent operator instruction.

Factory-applied, anti-sweat insulation shall be attached to the cooler shell, flow chamber, tube sheets, suction connection, and (as necessary) to the auxiliary tubing. The insulation shall be a flexible, closed-cell plastic type, 3/4 thick, applied with vapor-proof cement.

The unit must have four vibration isolation mounts, consisting of 1-inch-thick neoprene isolation pads, for field mounting. The pads are to be mounted under the steel mounting pads on the tube sheets. Suitable for ground floor installation.

The chiller is shipped in four assemblies (Shipment Form 7):

(1) The driveline (compressor/motor assembly)

(2) The evaporator

(3) The condenser

(4) The Variable Speed Drive (VSD)

(5) Miscellaneous shipped loose items

Refrigerant charges are shipped separately.

Arrangements with the local service office must be made to ensure refrigerant is on-site when unit is ready to be charged.

Prior to shipping, the unit must be completely assembled at the factory. Interconnecting piping is assembled, and the complete unit is wired, and leak tested.

The unit must then be dismantled and shipped as follows:

(1) The driveline (compressor/motor assembly) must be removed from the shells and skidded.

(2) All integral wiring must be left on the compressor.

(3) All wiring harnesses on shells must be removed.

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(4) All openings on the compressor must be closed and shipped charged with a 2 to 3 PSIG (115.122 kPa) holding charge of dry nitrogen.

The evaporator and condenser must be separated at the tube sheets and prepared for shipping separately but not skidded.

(1) All conduits must be left on the shells.

(2) Refrigerant lines between shells must be flanged and capped, requiring no welding.

(3) All openings the shells must be closed and charged with a 2 to 3 PSIG (115.122 kPa) holding charge of dry nitrogen.

The VSD must be skidded and shipped separately from the assembled chiller.

(4) The VSD must be filled with glycol for shipping.

The VSD Inhibitor must be shipped with the other loose items.

The following assemblies and items must be shipped to-gether:

(1) OptiView™ Control Center

(2) Magnetic Bearing Controller (MBC)

(3) Four (4) neoprene vibration isolation pads.

(4) VSD Inhibitor

(5) Other shipped loose items, including piping, water temperature controls, wiring, isolators, etc.

b) Manufacturer specified refrigerant and oil in new Chiller 1.

c) New Chiller chilled water supply and return piping systems to connect to existing chilled water closed loop.

d) New Chiller condenser water supply and return piping systems to connect to existing condenser water open loop.

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e) Alerton DDC control systems to match chilled and condenser water systems for their proper operation including but not limited to,

(1) Alerton ACM global controller.

(2) Update Alerton control system to latest firmware and software in B-29 main operating station, four (4) lap-top computers, and global controller.

(3) Upgrade Alerton graphics to match chilled and condenser water systems.

(4) Reprogram Alerton global controller for chilled and condenser water systems in accordance with COR approved sequence of operations. Contractor must submit control sequence of operations to COR for written approval.

(5) Update Alerton database.

f) Piping insulation on new piping and damaged insulation to match existing.

g) Chiller insulation in accordance with manufacturer’s recommendations.

h) Electrical service for Chiller 1 from Motor Control Center to

Chiller 1.

(1) Rigid conduit.

(2) Flexible conduit must be liquid tight Flexible Metal

Conduit (FMC) or equal (fixture whip maximum length 6 feet).

(3) Conductors.

(4) Electrical connectors.

3. Furnish labor and materials to:

a) Perform chiller start up in accordance with manufacturer’s recommendations. A minimum of two weeks prior to startup, Contractor must schedule with COR, not interfere with Medical

Center operations, and at no additional cost to the Government.

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b) Test, Adjust, and Balance (TAB) existing B-29 chilled water and condenser water systems including but not limited to, cooling towers 1,2,3, and 4 condensing water pumps 1 and 2, chilled water pumps 1 and 2, chillers 1,2,3, and 4 and provide COR with a

National Environmental Balancing Bureau (NEBB) certified report.

IV. SPECIFICATIONS INDEX:

SECTIONS NO. DIVISION AND SECTION TITLES DATE

01 00 00 General Requirements 11/2022

01 32 16 15 Project Schedules 11/2022

01 33 23 Shop Drawings, Product Data, and Samples 9/2021

01 35 26 Safety Requirements 10/2022

01 42 19 Reference Standards 11/2022

01 45 00 Quality Control 2/2021

01 91 00 01 DVA/USACE Projects General Commissioning Requirements 8/2019

01 91 00 General Commissioning Requirements 4/2022

23 05 11 Common Work Results for HVAC 4/2022

23 05 12 General Motor Requirements for HVAC and Steam Generation Equipment 2/2020

23 05 93 Testing, Adjusting, and Balancing for HVAC 2/2020

23 07 11 HVAC and Boiler Plant Insulation 2/2020

23 08 00 01 DVA/USACE Project Commissioning of HVAC Systems 8/2019

23 08 00 Commissioning of HVAC Systems 4/2022

23 09 23 Direct-Digital Control System for HVAC 8/2020

23 21 13 Hydronic Piping 2/2020

23 64 00 Packaged water Chillers 3/2020

26 05 11 Requirements for Electrical Installations 1/2016

26 05 19 Low-Voltage Electrical Power Conductors and Cables 1/2017

V. DRAWINGS INDEX:

DWG#

DWG TITLE

PROJECT# DATE

PROJECT TITLE

MH-301 Mechanical Sections Building 29 564PR2302 Sep 9, 2008 Clinical Addition and Renovation

MH-401A Mechanical plan – Building 29 Ph 1 564PR2302 Sep 9, 2008 Clinical Addition and Renovation

MH-401B Mechanical Plan – Building 29 Ph 2 564PR2302 Sep 9, 2008 Clinical Addition and Renovation

MH-402 Roof Plan – Building 29 564PR2302 Sep 9, 2008 Clinical Addition and Renovation

VI. WIRING:

A. Wiring (conductors), including but not limited to, conduit must be installed in accordance with the latest edition of the National Electric Code (NEC), drawings, and specifications.

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B. Wiring except fixture whips (maximum length 6 feet) must be enclosed in rigid conduit. Fixture whips and conduit must be installed per NEC with compression fittings.

C. Electrical terminations must be in accordance with manufacturer’s installation instructions.

D. Contractor must furnish conduit with factory finish color as follows:

1. Red = Fire Alarm

2. Blue = Nurse Call

3. Green = Access Control/Camera System/Intercom

4. Silver = Electrical General

5. Orange = High Voltage

6. Yellow = HVAC Controls

7. White = Cable TV

8. Purple = Telephone/Data

VII. CONTRACTOR ACCESS AND ACTIVITIES:

A. Safety: Contractor’s highest priority must be safety. Contractor work must be in accordance with Federal, State, Local OSHA codes, regulations, latest edition of NEC, latest edition of NFPA 70E, and 01 35 26 Safety

Requirements specification. Contractor must furnish and use required safety items, including but not limited to, safety signage, cones, barricades, and must furnish and wear required Personal Protective Equipment (PPE).

B. Information Security: The Contractor must be subject to the Federal laws, regulations, standards, and VA Directives and Handbooks regarding information and information system security as delineated in this contract.

1. Contractor, subcontractors, and their employees must complete the web-based VA Privacy and Information security Awareness and Rules of

Behavior (VA10176) course as well as the Privacy and HIPAA Focused

Training (VA10203). Course completion certificates for the 2 courses must be submitted to the COR prior to the start of work.

C. Site Supervision: Contractor must submit written qualifications of proposed site superintendent(s) to the CO and COR for consideration.

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Contractor must furnish superintendent(s) with written COR approval to continuously supervise on site contract activities. Contractor superintendent(s) must not engage in any direct trades’ labor.

D. Security: Contractor must coordinate with VA Police and COR to comply with the VHSO security management program, including but not limited to, obtain onsite access permission by the VA Police, be identified by Contractor and project, and restricted from unauthorized access.

E. Badging: While on campus, Contractor must wear a visible VHSO issued identity Badge. Contractor can be subject to inspection of personal effects when entering or leaving the project site and VHSO property. Contractor site superintendent must escort Contractor employees to Engineering Shop (Building

37) to obtain badge(s). Contractor must maintain a Badge Log with Employee

Names, Badge ID Numbers, Start Date(s), Departure Date(s), ID Lost Date(s), and ID Return Date(s). Contractor must update Badge Log and furnish to the

COR weekly or as directed in writing by COR. Contractor must report lost

Badge(s) immediately to the COR and document on Badge Log. Contractor must return Badge(s) immediately on day of departure of employee from project to COR and document on Badge Log. Contractor must return remaining

Badge(s) at project closeout to COR. Contractor must reimburse the

Government a $100.00 fee for each lost or unreturned Badge.

F. Key Access: Contractor site superintendent may check out a key to access mechanical and electrical rooms as project requires. Contractor site superintendent must check out and return a key at Engineering (Building 37) daily and the key must not leave VHSO property. Contractor site superintendent must notify the COR when a key is lost. Contractor must reimburse the

Government a $3,500.00 fee for each lost or unreturned key(s).

G. Property Access Work Hours:

1. Regular Business Hours: Site work must be scheduled during regular business hours, 0600 to 1600 hours, Monday through Friday

(excluding the following Federal holidays - New Year’s Day, Martin Luther

King Day, Presidents Day, Memorial Day, Juneteenth, Independence Day, SOW Replace Chiller 1 R7 2023 01 31 Page 21 of 28

Labor Day, Columbus Day, Veterans Day, Thanksgiving Day, and

Christmas Day).

2. Outside Regular Business Hours: Work must be scheduled during

1600 to 0600 hours, Monday through Friday including holidays, 0600

Saturday to 0600 Monday and must not commence without prior COR written approval at no additional expense to the Government.

3. Designated Hours: Contractor must plan contract work activity that interferes with Medical Center (MC) operations and must not commence without prior COR written approval at no additional expense to the

Government.

H. Utilities: Contractor must not leave unattended out-of-service any utility, fire protection, life safety system, or security system without written permission of the COR. If a utility, fire protection, life safety system or security system is not functional at the end of a work period without written permission of the COR, then the Contractor must restore the system(s) to working order prior to leaving the job site or must furnish an around-the-clock watch subject to COR written approval until the system is functional. If the Contractor fails to do so, the

Contractor must reimburse the Government a fee equal to the amount of costs incurred by the Government to furnish around-the-clock watch and/or repair the system(s).

I. Parking: Contractor on-site parking is limited to availability of designated

Contractor parking. Contractor must have prior COR written approval of on-site

Contractor parking.

J. Vehicles and Construction Equipment: Contractors’ key(s) to unattended vehicle(s) and construction equipment must be removed and vehicle(s) locked.

K. Unloading and Loading: Contractor must unload and load materials, including but not limited to, equipment, tools, supplies, parts, and construction debris at the loading dock. Contractor must not leave vehicle(s) or construction equipment unattended at the loading dock. No materials, including but not

SOW Replace Chiller 1 R7 2023 01 31 Page 22 of 28 limited to, equipment, tools, supplies, parts, and construction debris are permitted through the front entry.

L. Elevators: Contractor must use COR designated elevators and must protect elevator cabs, including but not limited to, cab interior components and controls during Contractor use. Contractor must not exceed elevator weight limits. COR designated elevator(s) may not be immediately available to the

Contractor. The Contractor must account for this and Contractor must be flexible in the project schedule without additional cost to the Government.

M. Storage and Staging: Contractor storage and staging is limited to availability of designated on-site Contractor storage and staging. Contractor must submit a written request for storage or staging to the COR for consideration a minimum of seven (7) business days prior to the storage or staging. Contractor must have prior COR written approval of on-site Contractor storage and staging.

Contractor must relocate or remove on-site storage and staging, including but not limited to, Contractor’s office trailer(s), dumpster(s), storage container(s) and construction materials a maximum of seven (7) business days after written notification by the COR without additional expense to the Government.

N. Equipment and Tools: Contractor must furnish construction equipment and power and hand tools, including but not limited to, ladders, scaffolds, lifts, backhoes, and forklifts to complete Contractor’s work.

O. Radios and Mobile Devices: Contractor must use mobile devices at low volume or outside. Contractor must not carry on conversations in hallways or near any patient areas. AM/FM radios and other media producing devices must not be used on VHSO property.

P. Noise: Contractor must coordinate and schedule with COR noise making activities. Contractor must submit to the COR a written request for consideration and written approval a minimum of seven (7) business days prior to activity.

Contractor must have COR written approval to proceed.

Q. Dust Proofing and Cleaning: Contractor must cover furnishings and equipment with white plastic, fire retardant polyethylene, antistatic, minimum 6 mil thickness, imprinted with fire retardant labeling or clean drop cloth. Contractor

SOW Replace Chiller 1 R7 2023 01 31 Page 23 of 28 must furnish HEPA vacuum cleaner(s), cleaning tools, and tacky mats at job site entrances. Contractor must not use broom(s).

R. Fire Alarm: Contractor must coordinate and schedule fire alarm interruption activity with COR. Contractor must submit to the COR for consideration and written approval a minimum of seven (7) business days prior to activity. Contractor must have COR written approval to proceed three business days prior to activity. Contractor must submit written fire watch plan to CO and

COR for consideration no later than (NLT) ten (10) calendar days after NTP.

Contractor must be responsible for fire watch in the areas where fire/smoke detection coverage is removed or disabled. Contractor must be responsible to coordinate fire or smoke detection with the COR for the removal and restoration of fire protection coverage. After regular business hours or designated hours, supervision of the fire alarm panel is required at the Contractor’s expense. The

Contractor must be responsible for completion and submission of a written Fire

Alarm Bypass Request. The Contractors’ written request must be submitted for

COR approval and if approved by COR, then the COR must furnish a written approval to proceed three (3) business days in advance of any proposed work activity. If the fire alarm system requires any deactivation, then it must be reactivated the same day before the Contractor leaves the job site to ensure that the fire alarm system is functional. If the fire alarm system is not functional, then the Contractor must restore the fire alarm system to working order prior to leaving the site or must furnish an around-the-clock fire watch until the fire alarm system is functional. The Contractor must be liable for any costs incurred by the

Government to furnish the fire watch and/or to repair the fire alarm system.

S. Hot Work: Contractor must perform and safeguard hot work operations in accordance with OSHA 1910 Subpart Q, NFPA 241, and NFPA 51B. Contractor must coordinate and schedule with COR Hot Work Operations. Hot work operation is defined as operations including, but not limited to, open flame, producing heat and/or sparks, burning, welding, processes such as arc welding, oxy-fuel gas welding, open-flame soldering, brazing, thermal spraying, cutting, oxygen cutting, arc cutting, chipping, grinding, heat treating, sand blasting, torch-

SOW Replace Chiller 1 R7 2023 01 31 Page 24 of 28 applied roofing, chemical welding, thawing pipe, and light horizontal welding, or an operation that is capable of initiating fires or explosions. Contractor must obtain Hot Work Permit from COR prior to activity.

T. Fire and Smoke Barrier Penetration: Contractor must perform, maintain, and safeguard the integrity of smoke and fire barriers in accordance with NFPA

101, NFPA 80, and NFPA 90A. Contractor penetrations in barriers must be repaired in an approved manner (filled with the designated and COR approved flame retardant filler).

U. Energized Circuit Work: Contractor must perform, maintain, and safeguard the integrity of the VHSO electrical systems and must follow procedures around energized equipment in accordance with NFPA 70E standards including proper PPE. Contractor must coordinate and schedule energized circuit work with COR. Contractor must submit to the COR a written request for consideration and written approval a minimum of seven (7) business days prior to activity. VHSO electrician or electrical engineer must monitor work.

Contractor must use safety equipment to include but not be limited to, 12 calorie arc flash suits with hoods and 5KV gloves. No exits will be blocked. Personnel without proper PPE must be prohibited within the working area around live electrical panels with the cover removed. Contractor must have COR written approval to proceed three (3) business days prior to activity.

V. Utility interruption: Contractor must coordinate and schedule with COR.

Contractor must submit to the COR a written request for consideration and written approval a minimum of seven (7) business days prior to activity. Work must be planned in advance to give as much time as possible to schedule a utility interruption. There may be times when a utility interruption request is denied because of insufficient lead-time or interference with ongoing VHSO activities and must be rescheduled at no additional cost to the Government.

Contractor must have COR written approval to proceed three (3) business days prior to activity.

W. Disposal: Contractor must coordinate and schedule with COR.

Contractor must have COR written approval to proceed three (3) business days

SOW Replace Chiller 1 R7 2023 01 31 Page 25 of 28 prior to activity. Contractor must submit a written request to dispose of any government owned materials, equipment, or property in advance to the COR for

COR written approval. Contractor must remove and properly dispose construction debris, materials, equipment, and substances from this project and the VHSO property daily into the Contractor supplied containers. Contractor must coordinate disposal container location with COR contingent upon available space and any future COR directed relocation(s) must be at no additional cost to the

Government. Construction debris created from the project must not be disposed of in VHSO dumpsters or on VHSO property. Disposal of construction debris, materials, equipment, and substances from the project must be in accordance with applicable Federal, State, and Local laws, rules, and regulations. The

Contractor must ensure and furnish appropriate documentation to the CO and

COR that all hazardous waste handlers, haulers, and disposal facilities are properly licensed. The Contractor must furnish shipping manifest and documentation of disposal of construction debris, materials, equipment, and substances from the project prior to final payment.

X. Fumes: Contractor must coordinate and schedule with COR. Contractor must submit to the COR a written request for consideration and written approval a minimum of seven (7) business days prior to activity. The Contractor must schedule fume producing work activities, including but not limited to, painting or heat produced fumes after regular business hours. Contractor must be responsible for ventilation necessary to exhaust and prevent fumes from entering adjoining areas, outside air intake ductwork, and re-entering the VHSO healthcare facilities at no additional cost to the Government. Contractor must have COR written approval to proceed three (3) business days prior to activity.

Y. Photography: Contractor must coordinate and schedule with COR.

Contractor must be escorted by VHSO personnel to take job site related photos.

Contractor must not photograph any patients, personnel, visitors, and others on

VHSO property.

Z. Training: The Contractor must furnish a minimum of sixteen (16) hours of on-site training to all chiller plant staff. Contractor must also furnish a minimum of

SOW Replace Chiller 1 R7 2023 01 31 Page 26 of 28 twenty-four (24) FACTORY owner training for each of three (3) Veterans Affairs staff members in the operation and maintenance of the chiller. Travel and lodging of the 3 VA staff members attending the Factory Owner training will be the responsibility of the Government. Training must include an agenda, instruction manual in electronic form, and hands-on training and demonstrations. Contractor must coordinate and schedule training with the COR.

AA. Project Meeting/Conference Minutes:

1. Meeting minutes for all formal meetings and conferences held with the VA, including weekly construction meetings. Meeting minutes must be submitted within seven (7) calendar days of the meeting or conference. All documents in any of the electronic formats listed above.

2. Minimum meeting minutes requirements.

a) Contractor must take minutes of all meetings held relative to this project.

b) The progress meeting must include at a minimum, the

Project Manager and the Contractor, the COR and the CO representing the Government. Others must attend when requested by the Contracting Officer. The meeting must be scheduled the same day, time, and place each week.

c) Project name, number, meeting host, Meeting Name.

d) Date, Time, meeting ID, call in number, Duration, and consecutive number of total related meetings.

e) Participant list (Name, Title, Phone number (office and

Mobile), Email, Attended Meeting (yes/no Check box).

f) Meeting purpose, Roll call, Safety, Security, Environmental, COVID-19, and Additional Items.

g) Agenda items (Decisions, action items, and fixes or next steps).

h) Next meeting date and time.

i) Detailed attachment list.

SOW Replace Chiller 1 R7 2023 01 31 Page 27 of 28

j) Contractor must furnish, via e-mail, complete copies of all minutes to all attendees within 72 hours of the meeting. All challenges to the minutes will be reflected in a revised version prepared by the Contractor along with the Contractor and COR shall sign/initial the minutes. In the event of any disputes or challenges that can’t be resolved, the

Contracting Officer shall render a final decision. Copies of updated minutes must be distributed to all attendees within

48 hours after change notice.

VIII. OTHER REQUIREMENTS:

A. Structural members must not be cut or altered, without prior CO - written authorization.

B. Contractor must make every reasonable effort to protect VHSO property from damage.

C. Contractor must furnish adequate protection for VHSO property before any construction activities occur. Contractor moved items must be put back by the Contractor to original locations and conditions as work is completed at no additional cost to the Government.

D. Anything remaining in place that is damaged or defaced by the Contractor must be restored by the Contractor to the pre-existing damaged or defaced condition at no additional cost to the Government.

E. Contractor must coordinate work of different trades so that interference between mechanical, electrical, architectural, and structural work including existing services must be avoided and within limits indicated the required space for operation, repair, removal, maintenance, and testing of equipment. Utilities, including but not limited to, conduit, ducts, and pipes must be arranged to ceiling slab, walls, and columns to take up a minimum footprint of space. Conduit, ducts, pipes, and equipment must not interfere with intended use of eyebolts and other lifting devices.

F. Contractor must locate existing utilities in area of work. Contractor must furnish adequate means of support and protection to utilities that remain in place.

SOW Replace Chiller 1 R7 2023 01 31 Page 28 of 28

Any property, including but not limited to, electrical, natural gas, medical gas, communication and utility lines, landscaping, walkways, roads, and curbs damaged by Contractor must be repaired or replaced at no additional cost to the

Government. Government property, including but not limited to, walls, ceilings, floors, furniture, must be protected from damage at no additional cost to the

Government. Areas must be cleaned after coring, sawing, and other construction activities by the Contractor at no additional cost to the Government.

G. No unauthorized Contractor work to be initiated without the prior written approval of the CO. The CO must approve any request, or proposal for changes in project scope or additional requirements, in writing prior to the Contractor proceeding with any work. Any Contractor changes without prior written approval by the CO, must be done at the Contractor’s risk and at the Contractor’s expense. Contractors must visit the job site and visit the facility in order to determine the nature and location of the work to be performed in general and the local conditions which can affect the work. Failure to do so must not relieve the

Contractor of responsibility for estimating the difficulty or cost to perform the work. Contractor must comply with applicable Federal, State, Local laws, codes, regulations, and ordinances. Contractor must obtain permits and licenses required by Federal, State, Local law, code, regulation, and ordinance(s) at no additional cost to the Government.