Heat Pump Installation SOW_2024-12-05.pdf

STATEMENT OF WORK

FOR

USDOT Volpe Center Test Range

BUILDING 2410

INSTALL HEAT PUMPS

JOINT BASE CAPE COD (JBCC)

23 JUNE 2024

SECTION 01010

GENERAL REQUIREMENTS

PART 1 – GENERAL

1.1 SCOPE: The Contractor shall provide all personnel, equipment, tools, materials, supervision, and other items and services necessary to install (1) Daikin 19 Series model number RX12NMVJU (or equal), 1 ton capacity, 19 SEER, Cooling rated 9,000 to 13,300 Btu, Heating 9,000 to 16,4000 Btu, 208/230 volt, 1 phase, A2L Refrigerant, MERV 13 filter kit, wall mounted heat pump systems, or equivalent at the USDOT Volpe Test Range, Building #2410, located on Joint Base Cape Cod in Sandwich, MA 02542.

The Contractor shall provide Electrical permits from the Town of Sandwich, MA The Contractor shall provide Building permits from the Commonwealth of Massachusetts. Reference attached instructions from the Commonwealth of Massachusetts for State owned buildings.

1.2 SITE VISITS: Bidders are strongly recommended to inspect the site where work is to be performed to satisfy them regarding all general and local conditions that may affect the cost of contract performance, to the extent that the information is reasonably obtainable. In no event shall failure to inspect the site constitute grounds for a claim after contract award. Arrangements for such visits shall be made by contacting Brian Hanley the COR, brian.hanley@dot.gov, 401- 290-7727, any questions regarding this specification or the work shall be addressed in writing and directed to the Contracting Officer.

1.3 LOCATION: Work will be performed at Building 2410 on South Inner Road located on Joint Base Cape Cod, Sandwich, MA 02542.

1.4 HOURS OF WORK: Normal working hours for the contract are 7:00 A.M. to 4:00 P.M., Monday through Friday (excluding Federal Holidays). If the Contractor desires to work other than normal duty hours, on weekends or federal holidays, he/she must request written permission from the Contracting Officer at least 36 hours in advance of such work and approval must be received prior to the requested work time. The Contractor shall coordinate the work schedule and all work with the COR. The Contractor shall not make any attempt to access any work areas without prior arrangements with the COR.

1.5 PRECONSTRUCTION CONFERENCE: Upon award of the contract and prior to starting the project, the Contractor shall attend a pre-construction conference with the Contracting Officer to ensure a complete understanding of mailto:brian.hanley@dot.gov the project. The Contractor shall pay for all expenses incurred by him in this regard. All questions shall be resolved and confirmed in writing if required.

1.6 SECURITY REQUIREMENTS: All Contractor personnel scheduled to work on JBCC shall be subject to a National Crime Information Center (NCIC) background check in order to gain access through the Base security gates. To process the NCIC background check, all Contractors shall provide the following information: name, citizenship, drivers’ license state and number, and date of birth. The NCIC form shall be filled out by the Contractor, listing all personnel that require access to JBCC; form shall be submitted to the COR for processing at least 7 calendar days prior to the date of access.

1.6.1 Contractor’s vehicles shall have a valid and current proof of insurance and vehicle registration. The drivers shall have a valid license and all passengers shall have a positive photo ID. All Contractor vehicles must enter the Base through the main gate on the Bourne side of the Base property.

1.7 REMOVAL OF CONTRACTOR EMPLOYEES: All employees of the

Contractor in the performance of this contract, or any representative of the Contractor entering the worksite, shall abide by all applicable regulations and shall submit to security checks as may be deemed necessary. The Government reserves the right to direct the Contractor to remove from the performance under this contract, any employee, for misconduct or security reasons. This shall not relieve or constitute an excuse from the contract performance. Upon dismissal the employee shall render any and all identification for entry to the worksite.

1.8 SCHEDULE OF WORK: After receiving the notice to proceed, the Contractor shall submit a Schedule of Work on the Government furnished form or other form approved by the Contracting Officer. The Contractor shall not commence work under this contract without receiving a copy of the signed, approved schedule.

1.9 LABOR & DAILY LOGS: All personnel shall be skilled and have sufficient knowledge and experience necessary to perform work assigned to them. The Contractor shall complete a daily log form at the end of each working day and deliver weekly to the COR. The Government will attest to its accuracy by initialing the form and providing a copy back to the Contractor.

1.10 SAFETY: The Contractor shall take all necessary precautions to meet proper safety standards and regulations of the State and Federal Codes. OSHA regulations apply to all work performed on site. In addition, the Contractor shall conform to any restrictions as may be outlined by the Base Safety Officer and Fire Department during the course of the contract.

1.11 ON SITE SUPERVISION: The Contractor shall provide qualified supervision at all times when work is being conducted by Contractor employees or Sub-Contractor employees. Prior to commencing work, the Contractor shall submit a letter to the Contracting Officer designating an employee from his/her company as the foreman or supervisor. The supervisor shall be on site any time work is being performed. The supervisor shall be able to read, write, speak English, and have the authority to approve and accept delivery orders and minor (under $2000.00) modifications to delivery orders.

1.12 PROTECTION OF PROPERTY: The Contractor shall comply with the requirements of Paragraph 52.236-9 and 52.236-10 of the Federal Acquisition Regulation and the following: All existing grounds, fences, utilities, equipment, building components and adjacent property, including vehicles, shall be protected from any damage resulting from contract operations. Contractors will be responsible for any damage to Government property. Damaged property (done by the Contractor) shall be repaired by the Contractor, at Contractor’s expense, to meet previous existing conditions.

1.13 HAZARDOUS MATERIAL: The Contractor shall be solely responsible for any and all Contractor generated or owned hazardous materials. While performing work Specific herein, if potentially hazardous materials are utilized a MSDS will be submitted to the COR prior to its use. If the hazardous materials are encountered, the Contractor shall notify the COR immediately. The Contractor’s responsibility for handling hazardous material is incidental to work performed, i.e., the Contractor shall handle, remove, and properly dispose of only those hazardous materials necessary to complete the contract work.

1.13.1 Any commercial adhesives, sealants, adhesive primers, sealant primers, and associated surface preparation and cleanup solvents in containers greater than a net volume of 16 fluid ounces, or a net weight of one pound shall not exceed volatile organic compounds (VOC) limits as established in the Massachusetts Department of Environmental Protection promulgated Adhesives and Sealants regulations, 310 CMR 7.18(30)."

1.14 DISPOSAL OF REMOVED MATERIALS: Dumpsters are allowed to be placed on site. All material removed by the Contractor that is not indicated to be salvaged by the Government shall become the property of the Contractor. This material shall be disposed of legally off of Joint Base Cape Cod property. The Contractor shall not cause, suffer, or permit the handling, transportation, or storage of any material in a manner which results, or may result in emissions that cause or contribute to a condition of air pollution, any debris which could create air-borne dust must be shipped in a closed container or wet down and securely tarped over. The Contractor is responsible to comply with all applicable federal, state and local environmental and disposal regulations. The Contractor shall submit to the COR the following:

1.14.1 Bill of lading for all disposed materials.

1.14.2 Copy of landfill receipts.

1.14.3 Recyclers operating permit.

1.15 SUBMITTAL DESCRIPTION: Samples, catalog cuts, shop drawings, and other information shall be submitted by the Contractor as required by the list of submittals on the Submittal Register Form(s) which is included in this specification. No other forms shall be used or will be accepted by the COR

1.15.1 The Contractor shall submit a list of all hazardous materials with Material Safety Data (MSD) to the COR for approval prior to work commencement on this project. Storage of hazardous materials will not be permitted on Joint Base Cape Cod property.

1.15.2 All materials used by the Contractor shall comply with VOC Emission limits for use in the Commonwealth of Massachusetts (310 CMR 7.00).

Cleaning and maintenance of the Contractor's and Sub-Contractor's equipment shall not be conducted on Joint Base Cape Cod property.

1.15.3 The Contractor shall ensure that adequate protective measures are taken to minimize personnel exposure to harmful substances. If protective measures are required, the Contractor shall include them in a Safety Plan and they shall be reviewed by the Contracting Officer prior to the start of any contract work involving use of the harmful substance.

1.16 RESTORATION AND CLEAN-UP: All areas disturbed by construction shall be restored to match the condition and material that existed prior to the start of work. The Contractor shall keep the work areas clean of trash and debris at all times. The Contractor shall not allow trash or debris to blow from the work area.

1.17 GOVERNMENT INSPECTION: The Contractor shall keep the COR informed of contract operations and plans so that they may arrange to be present at the various times that work is being performed.

1.18 PERFORMANCE PERIOD: All work under this contract including site cleanup, punch list, acceptance by the COR and required submittals shall be completed within (45) calendar days of issuance of the Notice to Proceed (NTP) by the Contracting Officer unless stated otherwise.

1.19 WARRANTY: The provisions of the entire warranty clause from paragraph 52.246-21 (April 84) and Federal Acquisition Regulation are incorporated into this contract. The clause is written, in part, as follows:

“In addition to any other warranties set out elsewhere in this contract, the Contractor shall warrant that work performed under this contract conforms to the contract requirements and is free of any defect of equipment, material, or design furnished or workmanship performed by the Contractor or any of his Sub-

Contractors or suppliers at any tier. Such warranty shall continue for a period of one year from the date of final acceptance of the work.”

END OF GENERAL SECTION

SECTION 23 81 00

HVAC

1.1 GENERAL: Furnish and install one (1) Daikin model number RX12NMVJU, 1 ton capacity, 18 SEER, wall mounted heat pump systems or equivalent. Heat pump systems as specified to include, electrical wiring, conduit, cables, supports, controls, drains, pumps, pads, wall brackets, and accessories.

1.1.1 REQUIRED WORK: This list should not be considered complete. It represents the general items needed to complete the contract requirements.

1. Install one (1) Daikin model RX12NMVJU (or equal) outdoor heat pump units on existing concrete equipment pad.

2. Install one (1) outdoor floor stand.

3. Install one (1) Daikin model FTX12NMVJU (or equal) wall mounted indoor heat pump units with drains and condensate pumps.

4. Install one (1) Wall mounted programmable smart thermostats accessible/programmable/reportable to mobile phone devices.

5. Install one (1) matching Daikin insulated refrigerant line sets.

6. Install electric conduit and wiring, weather tight disconnect switches, circuit breakers, and label.

7. Install controls, condensate pumps, and drain piping.

1.2 REFERENCES: The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

AIR-CONDITIONING, HEATING AND REFRIGERATION INSTITUTE

(AHRI)

ANSI/AHRI/CSA 310/380 (2014) Standard for Packaged Terminal

Air-Conditioners and Heat Pumps

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-

CONDITIONING ENGINEERS (ASHRAE)

ANSI/ASHRAE 15 & 34 (2016) ANSI/ASHRAE Standard 15-Safety

Standard for Refrigeration Systems and ANSI/ASHRAE Standard 34-Designation and Safety Classification of Refrigerants

ASHRAE 55 (2013) Thermal Environmental Conditions for Human Occupancy

ASHRAE 62.1 (2013) Ventilation for Acceptable Indoor

Air Quality

AMERICAN WELDING SOCIETY (AWS)

AWS A5.8/A5.8M (2011; Amendment 2012) Specification for

Filler Metals for Brazing and Braze Welding

ASME INTERNATIONAL (ASME)

ASME B16.22 (2013) Standard for Wrought Copper and

Copper Alloy Solder Joint Pressure Fittings

ASME B31.5 (2016) Refrigeration Piping and Heat Transfer Components

ASTM INTERNATIONAL (ASTM)

ASTM B280 (2016) Standard Specification for

Seamless Copper Tube for Air Conditioning and Refrigeration Field Service

ASTM B88 (2016) Standard Specification for

Seamless Copper Water Tube

ASTM B88M (2016) Standard Specification for Seamless Copper Water Tube (Metric)

ASTM C534/C534M (2014) Standard Specification for

Preformed Flexible Elastomeric Cellular Thermal Insulation in Sheet and Tubular Form

MANUFACTURERS STANDARDIZATION SOCIETY OF THE VALVE

AND FITTINGS INDUSTRY (MSS)

MSS SP-58 (1993; Reaffirmed 2010) Pipe Hangers and

Supports - Materials, Design and Manufacture, Selection, Application, and Installation

MSS SP-69 (2003; Notice 2012) Pipe Hangers and

Supports - Selection and Application (ANSI Approved American National Standard)

NATIONAL ELECTRICAL MANUFACTURERS ASSOCIATION

(NEMA)

NEMA ICS 1 (2000; R 2015) Standard for Industrial

Control and Systems: General Requirements

NEMA ICS 2 (2000; R 2005; Errata 2008) Industrial

Control and Systems Controllers, Contactors, and Overload Relays Rated 600 V

NEMA ICS 6 (1993; R 2011) Industrial Control and Systems: Enclosures

NEMA MG 1 (2016) Motors and Generators

U.S. DEPARTMENT OF ENERGY (DOE)

Energy Star (1992; R 2006) Energy Star Energy Efficiency Labeling System (FEMP)

U.S. GENERAL SERVICES ADMINISTRATION (GSA)

CID A-A-50502 (Basic) Air Conditioners, (Unitary

Heat Pump), Air to Air (3,000 to

300,000 BTU)

UNDERWRITERS LABORATORIES (UL)

UL 109 (1997; Reprint Aug 2013) Tube Fittings for Flammable and Combustible Fluids, Refrigeration Service, and Marine Use

UL 484 (2014; Reprint Jul 2015) Standard for

Room Air Conditioners

UL 873 (2007; Reprint Feb 2015) Standard for Temperature-Indicating and - Regulating Equipment

UL 900 (2015) Standard for Air Filter Units

1.3 SUBMITTALS: Heat Pumps (air to air), include documentation for Energy Star qualifications indicate Energy Efficiency Rating, Thermostats, Refrigerant MSDS, and Manufacturers O&M instructions.

1.4 Detail Drawing: For refrigerant piping, submit piping, including pipe sizes.

Submit control system wiring diagrams.

1.5 Safety: Design, manufacture, and installation of unitary heat pump equipment shall conform to ANSI/ASHRAE 15 & 34.

1.6 Posted Operating Instructions: Submit posted operating instructions for each Heat Pump unit.

1.7 Sizing: Size equipment based on Design Manual CS from the Air Conditioning Contractors of America; do not oversize.

1.8 REFRIGERANTS: Type A2L.

1.9 ENVIRONMENTAL REQUIREMENTS: For proper Indoor Environmental Quality, maintain positive pressure within the building. Ventilation shall meet or exceed ASHRAE 62.1 and all published addenda. Thermal comfort shall meet or exceed ASHRAE 55.

PART 2 PRODUCTS

2.1 PRODUCT SUSTAINABILITY CRITERIA: For products in this section, where applicable and to extent allowed by performance criteria, provide and document the following:

2.1.1 Energy Efficient Equipment for Unitary Heat Pump Equipment Provide unitary heat pump equipment meeting the efficiency requirements as stated within this section and provide documentation in conformance with Section 01 33 29 SUSTAINABILITY REPORTING paragraph ENERGY EFFICIENT

EQUIPMENT.

2.1.2 Ozone Depleting Substances: Unitary air conditioning equipment must not use CFC-based refrigerants, and must have an Ozone Depletion Potential (ODP) no greater than 0.0, with exception to R-123, in conformance with this section. Provide documentation in conformance with Section 01 33 29

SUSTAINABILITY REPORTING paragraph OZONE DEPLETING

SUBSTANCES.

2.2 PACKAGED TERMINAL UNITS

2.2.1 Heat Pumps: ANSI/AHRI/CSA 310/380, UL 484, air-cooled, thru-wall type, AHRI certified, and UL listed.

2.2.2 Wall Sleeves and Mounts: Provide manufacturer's standard wall sleeves and mounts.

2.2.3 Air Filters: Removable without use of tools, and shall filter both re-circulated and ventilating air.

2.2.4 Controls: Provide controls including, an adjustable thermostat, and switches, to regulate room air temperature through control of refrigerant compressors or heating elements. Controls shall at least have positions for off, high or low fan speed for heating and cooling, and fan only operation.

2.3 HEAT PUMPS, AIR TO AIR: Provide factory assembled units complete with accessories, wiring, piping, and controls.

2.3.1 Air Coils: Extended-surface fin and tube type with seamless copper or aluminum tubes with copper or aluminum fins securely bonded to the tubes.

2.3.2 Mounting Provisions: Provide units that permit mounting as indicated.

Provide suitable lifting attachment plates to enable equipment to be lifted to normal position.

2.3.3 Temperature Controls: Provide controls as specified in CID A-A-50502 and as modified herein. Provide indoor thermostats of the adjustable type that conform to applicable requirements of UL 873. Provide manual means for temperature set-back.

2.4 REFRIGERANT PIPING AND ACCESSORIES: Provide a filter-drier in the liquid line.

2.4.1 Factory Charged Tubing: Provide extra soft, deoxidized, bright annealed copper tubing conforming to ASTM B280, factory dehydrated and furnished with a balanced charge of refrigerant recommended by manufacturer of equipment being connected. Factory insulate suction line tubing with 3/8 inch minimum thickness of closed cell, foamed plastic conforming to ASTM C534/C534M with a permeance rating not to exceed 1.0. Provide quick-connectors with caps or plugs to protect couplings. Include couplings for suction and liquid line connections of the indoor and outdoor sections.

2.4.2 Field-Assembled Refrigerant Piping: Material and dimensional requirements for field-assembled refrigerant piping, valves, fittings, and accessories shall conform to ANSI/ASHRAE 15 & 34 and ASME B31.5, except as herein specified. Factory clean, dehydrate, and seal piping before delivery to the project location. Provide seamless copper tubing, hard drawn, Type K or L, conforming to ASTM B88M ASTM B88, except that tubing with outside diameters of 1/4 inch and 3/8 inch shall have nominal wall thickness of not less than 0.030 inch and 0.032 inch, respectively. Soft annealed copper tubing conforming to ASTM B280 may be used where flare connections to equipment are required only in nominal sizes less than one inch outside diameter.

2.4.3 Fittings: ASME B16.22 for solder-joint fittings. UL 109 for flared tube fittings.

2.4.4 Brazing Filler Material AWS A5.8/A5.8M.

2.4.5 Pipe Hangers and Supports: MSS SP-69 and MSS SP-58

2.4.6 Pipe Sleeves: Provide sleeves where piping passes through walls, floors, roofs, and partitions. Secure sleeves in proper position and location during construction. Provide sleeves of sufficient length to pass through entire thickness of walls, floors, roofs, and partitions. Provide not less than a 1/4 inch space between exterior of piping or pipe insulation and interior of sleeve. Firmly pack space with insulation and caulk at both ends of the sleeve with plastic waterproof cement which will dry to a firm but pliable mass, or provide a segmented elastomeric seal.

2.4.6.1 Sleeves in Masonry and Concrete Walls, Floors, and Roofs: Provide Schedule 40 or Standard Weight zinc-coated steel pipe sleeves. Extend sleeves in floor slabs 80 mm 3 inches above finished floor.

2.4.6.2 Sleeves in Partitions and Non-Masonry Structures: Provide zinc-coated steel sheet sleeves having a nominal weight of not less than 4.39 kg per square meter 0.90 pound per square foot, in partitions and other than masonry and concrete walls, floors, and roofs.

PART 3 EXECUTION

3.1 EQUIPMENT INSTALLATION: Install equipment and components in a manner to ensure proper and sequential operation of equipment and equipment controls. Install equipment not covered in this section, or in manufacturer's instructions, as recommended by manufacturer's representative. Existing concrete pad shall be utilized for exterior equipment. Provide proper foundations for mounting of equipment, accessories, appurtenances, piping and controls including, but not limited to, supports, vibration isolators, stands, guides, anchors, clamps and brackets. Set anchor bolts and sleeves using templates.

Provide anchor bolts of adequate length, and provide with welded-on plates on the head end embedded in the concrete. Level equipment bases, using jacks or steel wedges, and neatly grout-in with a non-shrinking type of grouting mortar.

Locate equipment to allow working space for servicing including shaft removal, disassembling compressor cylinders and pistons, replacing or adjusting drives, motors, or shaft seals, access to water heads and valves of shell and tube equipment, tube cleaning or replacement, access to automatic controls, refrigerant charging, lubrication, oil draining and working clearance under overhead lines. Provide electric isolation between dissimilar metals for the purpose of minimizing galvanic corrosion.

3.1.1 Unitary Heat Pump System: Install as indicated, in accordance with requirements of ANSI/ASHRAE 15 & 34, and the manufacturer's installation and operational instructions.

3.2 PIPING: Brazing, bending, forming and assembly of refrigerant piping shall conform to ASME B31.5.

3.2.1 Pipe Hangers and Supports: Design and fabrication of pipe hangers, supports, and welding attachments shall conform to MSS SP-58. Installation of hanger types and supports for bare and covered pipes shall conform to MSS SP- 69 for the system temperature range. Unless otherwise indicated, horizontal and vertical piping attachments shall conform to MSS SP-58.

3.2.2 Refrigerant Piping: Cut pipe to measurements established at the site and work into place without springing or forcing. Install piping with sufficient flexibility to provide for expansion and contraction due to temperature fluctuation. Where pipe passes through building structure pipe joints shall not be concealed, but shall be located where they may be readily inspected. Install piping to be insulated with sufficient clearance to permit application of insulation. Install piping as indicated and detailed, to avoid interference with other piping, conduit, or equipment. Except where specifically indicated, run piping plumb, straight and parallel to walls and ceilings. Trapping of lines will not be permitted except where indicated. Provide sleeves of suitable size for lines passing through building structure. Braze refrigerant piping with silver solder complying with AWS A5.8/A5.8M. Inside of tubing and fittings shall be free of flux. Clean parts to be jointed with emery cloth and keep hot until solder has penetrated full depth of fitting and extra flux has been expelled. Cool joints in air and remove flame marks and traces of flux. During brazing operation, prevent oxide film from forming on inside of tubing by slowly flowing dry nitrogen through tubing to expel air. Installation of piping shall comply with ASME B31.5.

3.3 AUXILIARY DRAIN PANS, DRAIN CONNECTIONS, and DRAIN LINES:

Provide auxiliary drain pans under units located above finished ceilings or over mechanical or electrical equipment where condensate overflow will cause damage to ceilings, piping, and equipment below. Provide separate drain lines for the unit drain and auxiliary drain pans. Trap drain pans from the bottom to ensure complete pan drainage. Provide drain lines full size of drain opening.

3.4 ACCESS PANELS: Provide access panels for concealed valves, controls, dampers, and other fittings requiring inspection and maintenance.

3.5 AIR FILTERS: Allow access space for servicing filters. Install filters with suitable sealing to prevent bypassing of air.

3.6 IDENTIFICATION TAGS AND PLATES: Provide equipment, gages, thermometers, valves, and controllers with tags numbered and stamped for their use. Provide plates and tags of brass or suitable nonferrous material, securely mounted or attached. Provide minimum letter and numeral size of 3.18 mm 1/8 inch high.

3.7 FIELD QUALITY CONTROL

3.7.1 Leak Testing: Upon completion of installation of air conditioning equipment, test factory- and field-installed refrigerant piping with an electronic-type leak detector. Use same type of refrigerant to be provided in the system for leak testing. When nitrogen is used to boost system pressure for testing, ensure that it is eliminated from the system before charging. Minimum refrigerant leak field test pressure shall be as specified in ANSI/ASHRAE 15 & 34, except that test pressure shall not exceed 1034 kPa (gage) 150 psig on hermetic compressors unless otherwise specified as a low side test pressure on the equipment nameplate. If leaks are detected at time of installation or during warranty period, remove the entire refrigerant charge from the system, correct leaks, and retest system.

3.7.2 Evacuation, Dehydration, and Charging: After field charged refrigerant system is found to be without leaks or after leaks have been repaired on field-charged and factory-charged systems, evacuate the system using a reliable gage and a vacuum pump capable of pulling a vacuum of at least 133 Pa one mm Hg absolute. Evacuate system in accordance with the triple-evacuation and blotter method or in accordance with equipment manufacturer's printed instructions and recharge system.

3.7.3 Start-Up and Initial Operational Tests: Test the air conditioning systems and systems components for proper operation. Adjust safety and automatic control instruments as necessary to ensure proper operation and sequence.

Conduct operational tests for not less than 8 hours.

3.7.4 Performance Tests: Upon completion of evacuation, charging, startup, final leak testing, and proper adjustment of controls, test the systems to demonstrate compliance with performance and capacity requirements. Test systems for not less than 8 hours, record readings hourly. At the end of the test period, average the readings and the average shall be considered to be the system performance.

-- End of Section --

SECTION 01010