Attachment_1_Statement_of_Work_HVAC_Replacement.pdf

01110-1

SUMMARY OF WORK

Request for Quotations #140P8318Q0070 Fort Vancouver NHS Attachment 1: Statement of Work

PEARSON AIR MUSEUM

HVAC REPLACEMENT & UPGRADE

TABLE OF CONTENTS

01110 Summary of Work 01270 Definition of Bid Items 01310 Project Meetings 01330 Submittals 01360 Accident Prevention 01510 Temporary Services 01560 Barriers 01785 Operation and Maintenance Data 01815 System Demonstration and Training 15800 Heating, Ventilating and Air Conditioning Systems

01110-2

SECTION 01110

1 .1 DESCRIPTION

The work of this contract consists of the following:

A. BASE ITEMS: This work is described in Line Items 001 through 006 in Section

01270. Remove and replace six heat pumps and fan coil units and upgrade the system to accept R-410A refrigerant. The work includes electrical disconnect, refrigerant charge, duct transition, thermal expansion valve, DX piping, connection to existing duct work, hot water line, and control system for a completely functional system that is fully compatible with the existing control system. This building houses a public museum, theater/classroom, staff offices, and public restrooms. The building floor area covers approximately 18,000 square feet. Refer to mechanical drawings of Pearson Air Museum in Attachment 2.

B. OPTIONS: This work is described in Options A and B in Section 01270. Replace the make-up air unit and heat exchanger. Additionally, upgrade system to accept R- 410A refrigerant. The work includes electrical disconnect, refrigerant charge, duct transition, thermal expansion valve, DX piping, connection to existing duct work, hot water line, and control system for a completely functional system and fully compatible with the existing control system.

All work will be performed under a single contract.

1 .2 LOCATION

Pearson Air Museum Fort Vancouver National Historic Site 1115 E 5th Street Vancouver, WA 98661

1 .3 SITE VISIT

Quoters are strongly encouraged to attend a site visit to assess job conditions, determine the existing system configuration and factors that influence the work.

1 .4 CONTRACTOR'S USE OF PREMISES

A. Construction Camp: Establishment of a camp within the park will not be permitted.

B. Pearson Air Museum is open to the public Tuesday – Saturday, 9:00 am – 5:00

01110-3 pm, and will remain open during the contract.

C. Contractor shall at all times conduct their operations to ensure the least inconvenience to the public. Limited closures of public areas will be permitted, when required, upon specific approval of Contracting Officer’s Representative

(COR).

D. Confine storage of materials to designated location.

E. Preservation of Natural Features: Confine all operations to work limits of the project. Prevent damage to natural surroundings. Restore damaged areas, repairing or replacing damaged trees and plants, at no additional expense to the Government.

1. Provide temporary barriers to protect existing trees and plants and root zones.

2. Do not remove, injure, or destroy trees or other plants without prior approval. Consult with Contracting Officer and remove agreed-on roots and branches that interfere with construction.

3. Do not fasten ropes, cables, or guys to existing trees.

4. Carefully supervise excavating, grading, filling, and other construction operations near trees to prevent damage.

F. Existing Utilities: Notify Contracting Officer and utility companies of proposed locations and times for excavation.

1. Contractor shall be responsible for locating and preventing damage to known utilities. If damage occurs, repair utility at no additional expense to the Government.

2. If damage occurs to an unknown utility, repair utility. An equitable adjustment will be made in accordance with the Changes clause of the contract.

3. Interruption of Existing Utility Service is permitted if necessary. Obtain prior approval from the Contracting Officer.

G. Hauling Restrictions: Comply with all legal load restrictions in the hauling of materials. Load restrictions on park roads are identical to the state load restrictions with such additional regulations as may be imposed by the Park Superintendent.

Information regarding rules and regulations for vehicular traffic on park roads may be obtained from the Office of the Park Superintendent. A special permit will not relieve Contractor of liability for damage which may result from moving of equipment.

1 .5 SPECIAL CONSTRUCTION REQUIREMENTS

A. Exercise care during all phases of work to prevent damage to building components and equipment. The Contractor is responsible for repairing any damage caused by the Contractor’s crew. In addition, resource damage assessment may be levied against the Contractor if it is determined that damage was caused by negligence.

01110-4

B. Once starts, work shall continue to completion. Contractor is responsible for protecting building interior at all time during performance.

C. Work Schedule: On-site work shall be performed between 7:00 AM and 5:00 PM, Monday to Friday. No on-site work shall be performed on weekends or federal holidays unless otherwise approved in writing by the COR.

1 .6 FIELD VERIFICATION

Field verify all dimensions affecting the work of this contract before ordering products.

1 .7 CONSTRUCTION WASTE DISPOSAL

A. Waste material and equipment shall be promptly collected and disposed of outside

Park boundary in approved disposal site or be recycled properly.

B. Provide a list of recycled material and equipment to COR.

C. Provide receipt of proper disposal of evacuated refrigerant.

D. Site shall be cleaned before close down each day.

END OF SECTION

01270-5

DEFINITION OF LINE ITEMS

SECTION 01270

DEFINITION OF LINE ITEMS

A. The intent of this section is to explain, in general, what is and what is not included in a line item, and the limits or cut-off points where one line item ends and another begins.

B. If no line item exists for a portion of the work, include the costs in a related line item.

C. Each item includes labor, material, and equipment to perform the work described including removal and appropriate recycling or disposal of existing equipment and materials and replacement with new equipment and materials.

1 .2 BASE ITEMS: Remove and replace six heat pumps and fan coil units and upgrade the system to accept R-410A refrigerant. The work includes electrical disconnect, refrigerant charge, duct transition, thermal expansion valve, DX piping, connection to existing duct work, hot water line, and control system for a completely functional system that is fully compatible with the existing control system. This building houses a public museum, theater/classroom, staff offices, and public restrooms. The building floor area covers approximately 18,000 square feet. Refer to mechanical drawings of Pearson Air Museum in Attachment 2.

Package Number Indoor Unit Outdoor Unit Size

001 Fan Coil Unit #1 Heat Pump #1 5 ton 002 Fan Coil Unit #2 Heat Pump #2 5 ton 003 Fan Coil Unit #3 Heat Pump #3 3.5 ton 004 Fan Coil Unit #4 Heat Pump #4 5 ton 005 Fan Coil Unit #5 Heat Pump #5 2 ton 006 Fan Coil Unit #6 Heat Pump #6 7.5 ton

1 .3 OPTIONS: Replace the make-up air unit and heat exchanger. Additionally, upgrade system to accept R-410A refrigerant. The work includes electrical disconnect, refrigerant charge, duct transition, thermal expansion valve, DX piping, connection to existing duct work, hot water line, and control system for a completely functional system and fully compatible with the existing control system.

Equipment Size A Heat Exchanger 720 CFM B Make-up Air Unit 3500 CFM

01330-6

SUBMITTALS

SECTION 01330

A. The work of this section consists of submittal requirements before and during construction.

1 .2 SUBMITTAL AND APPROVAL PROCEDURES

A. As specified in the individual sections, forward submittals to Contracting Officer at least 10 days before need for approval.

1. Samples: Samples shall be large enough to illustrate clearly the functional characteristics and full range of color, texture, or pattern.

2. Manufacturers' Catalog Sheets: Submit only pertinent pages; mark each copy of standard printed data to identify specific products proposed for use.

3. Manufacturer's Installation Instructions: When contract documents require compliance with manufacturer's printed instructions, provide one complete set of instructions for Contracting Officer and keep another complete set of instructions at the project site until substantial completion.

B. Contracting Officer reserves the right to require submittals in addition to those called for in individual sections.

C. Approved Equals:

1. For each item proposed as an "approved equal," submit supporting data, including:

a. Samples as appropriate.

b. Comparison of the characteristics of the proposed item with that specified.

c. Changes required in other elements of the work because of the substitution.

d. Name, address, and telephone number of vendor.

e. Manufacturer's literature regarding installation, operation, and maintenance, including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists. Describe availability of maintenance service, and state source of replacement materials.

01330-7

2. A request for approval constitutes a representation that Contractor:

a. Has investigated the proposed item and determined that it is equal or superior in all respects to that specified.

b. Will provide the same warranties for the proposed item as for the item specified.

c. Has determined that the proposed item is compatible with interfacing items.

d. Will coordinate the installation of an approved item and make all changes required in other elements of the work because of the substitution.

e. Waives all claims for additional expenses that may be incurred as a result of the substitution.

3. Construction Materials: The Contractor is encouraged to submit for approval products made out of recycled or environmentally responsible material. Every effort will be made by the National Park Service to approve these materials.

D. Coordinate all submittals and review them for legibility, accuracy, completeness, and compliance with contract requirements. Forward submittals that are related to or affect one another as a package to facilitate coordinated review. Each transmittal shall contain only data specific to that individual submittal.

E. Submittal Identification: All sets of shop drawings, manufacturer's catalog sheets, samples, and other documents submitted to the Contracting Officer must have the identification information, including park name, project title, contract number, and transmittal number, labeled on the submittal.

F. Contracting Officer's Review:

1. Submittals will be returned disapproved without technical review if identification information is missing, submittals are not coordinated; or submittals do not show evidence of Contractor's approval.

2. Any work done or orders for materials or services placed before approval shall be at the Contractor's own risk.

3. After reviewing submittals, the Contracting Officer will return one copy of applicable (marked up) submittal sheets to the Contractor. Shop drawing review notations will be returned on the reproducible original shop drawing. All other submitted items will be retained. The Contractor is responsible for producing additional copies for his/her own use.

01360-8

ACCIDENT PREVENTION

SECTION 01360

The work of this section consists of establishing an effective accident prevention program and providing a safe environment for all personnel and visitors.

1 .2 SUBMITTALS

A. Accident Prevention Program: Before on-site work begins, submit for approval an accident prevention program. The Contracting Officer will review the proposed program for compliance with OSHA and project requirements. If the program requires any revisions or corrections, the Contractor shall resubmit the program within 10 days. No progress payments will be made until the program is approved. The program shall include:

1. Name of responsible supervisor to carry out the program.

2. Regular safety meetings.

3. First aid procedures.

4. Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to ensure property protection and safety of the public, National Park Service personnel, and Contractor's employees. Identify the work included under each phase by reference to specification section or division numbers.

5. Training, both initial and continuing.

6. Planning for job related hazards and other possible emergency situations, such as fall hazards, floods, fires, cave-ins, slides, explosions, power outages, wind storms. Such planning shall take into consideration the nature of construction, site conditions, and degree of exposure of persons and property.

7. Fire Protection: Section 01510.

B. Submit a copy of test reports, as required by OSHA, for personnel working with hazardous materials.

C. Submit a report of safety meetings and of inspections.

D. Upon request, submit proof of employees' qualifications to perform assigned duties in a safe manner.

1 .3 QUALITY ASSURANCE

A. Clauses entitled "Accident Prevention" and "Permits and Responsibilities" of the contract. In case of conflicts between Federal, state, and local safety and health requirements, the most

01360-9 stringent shall apply. Equipment or tools not meeting OSHA requirements will not be allowed on the project sites. Failure to comply with the requirements of this section and related sections may result in suspension of work.

B. Qualifications of Employees:

1. Ensure that employees are physically qualified to perform their assigned duties in a safe manner.

2. Do not allow employees to work whose ability or alertness is impaired because of drugs, fatigue, illness, intoxication, or other conditions that may expose themselves or others to injury.

3. Operators of vehicles, mobile equipment, hoisting equipment, and hazardous plant equipment shall be able to understand signs, signals, and operating instructions, and be capable of operating such equipment. Provide operating instructions for all equipment. Newly hired operators shall be individually tested by an experienced operator or supervisor to determine if they are capable of safely operating equipment.

1 .4 ACCIDENT REPORTING

A. Reportable Accidents: A reportable accident is defined as death, occupational disease, traumatic injury to employees or the public, property damage by accident in excess of $100, and fires. Notify Contracting Officer immediately in the event of a reportable accident. Within 7 days of a reportable accident, fill out and forward to Contracting Officer an Accident/Property Damage Report (Form CM-22). Form may be obtained from the Contracting Officer.

B. All Other Accidents: The Contractor shall report all other accidents to the Contracting Officer as soon as possible and assist the Contracting Officer and other officials as required in the investigation of the accident.

1 .5 FIRST AID FACILITIES

Provide adequate facilities for the number of employees and the type of construction at the site.

1 .6 PERSONNEL PROTECTIVE EQUIPMENT

A. Meet requirements of NIOSH and MSHA.

1 .7 BARRIERS - Section 01560.

1 .8 EMERGENCY INSTRUCTIONS

Post telephone numbers and reporting instructions for ambulance, physician, hospital, fire department, and police in conspicuous locations at the work site.

1 .9 EGRESS

01360-10

Provide and maintain adequate egress at all times in accordance with the Life Safety Code (NFPA 101).

No corridor, aisle, stairway, door, or exit shall be obstructed or used in a manner that interferes with egress.

1 .10 PROTECTIVE EQUIPMENT

A. Inspect personal protective equipment daily and maintain in a serviceable condition. Clean, sanitize, and repair, as appropriate, personal items before issuing them to another individual.

B. Inspect and maintain other protective equipment and devices before use and on a periodic basis to ensure safe operation.

1 .11 SAFETY MEETINGS

A. As a minimum, conduct weekly 15-minute "toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite.

B. Conduct monthly safety meetings for all levels of supervision. Notify the Contracting Officer of meeting dates and times. These meetings shall be used to review the effectiveness of the Contractor's safety effort, to resolve current health and safety problems, to provide a forum for planning safe construction activities, and for updating the accident prevention program. The Contracting Officer will attend the meeting and enter the results of the meetings into the daily log.

1 .12 HARD HATS AND PROTECTIVE EQUIPMENT AREAS

A. The hard hat area shall be posted by the Contractor in a manner satisfactory to the Contracting

Officer.

B. It is the Contractor's responsibility to require all those working on or visiting the site to wear hard hats and other necessary protective equipment at all times.

1 .13 TRAINING

A. First Aid: Provide adequate training to ensure prompt and efficient first aid.

B. Hazardous Material: Train and instruct each employee exposed to hazardous material in safe and approved methods of handling and storage. Hazardous materials are defined as explosive, flammable, poisonous, corrosive, oxidizing, irritating, or otherwise harmful substances that could cause death or injury.

01510-11

TEMPORARY SERVICES

SECTION 01510

PART 1 GENERAL

1.1 DESCRIPTION

The work of this section consists of providing temporary services required for Contractor's performance of the work of this contract.

PART 2 PRODUCTS

2 .1 GENERAL

Temporary materials may be new or used, but must be adequate in capacity for the required usage, must not create unsafe conditions, and must not violate requirements of applicable codes and standards.

2 .2 FIRE PROTECTION EQUIPMENT

Extinguisher shall have a minimum UL rating of 2-A:10-B:C.

PART 3 EXECUTION

3 .1 ELECTRICITY AND LIGHTING

A. Provide connections to existing facilities. The Government will pay the costs of power used.

B. Temporary Electrical: Temporary electrical work shall meet requirements of NFPA

70 (NEC), Article 305.

C. When temporary connections are removed, restore existing utility services to their original condition.

3 .2 TELEPHONE

No telephone service is available on site for Contractor's use. Cellular phones work well.

3 .3 WATER

Furnish cool, potable water for construction personnel in locations convenient to work stations.

01510-12

3 .4 SANITARY FACILITIES

Contractor employees may use facilities inside the museum building.

3.5 FIRE PREVENTION AND PROTECTION

A. Responsible Person: A capable and qualified person shall be placed in charge of fire protection. The responsibilities shall include locating and maintaining fire protective equipment and establishing and maintaining safe torch cutting and welding procedures.

B. Hazard Control: Take all necessary precautions to prevent fire during construction.

Only store flammable or combustible liquids in areas as designated by the Contracting Officer. Provide adequate ventilation during use of volatile or noxious substances.

C. Hot-work Permit: Open flame of any type, size or duration requires a hot-work permit from Park Structural Fire Coordinator (same as COR in this contract).

D. Smoking: Smoking within buildings or temporary storage sheds is prohibited.

E. Welding: Cutting by torch or welding shall be performed only when adequate fire protection is provided.

3 .6 PROTECTION EQUIPMENT REQUIRED

A. Buildings:

1. Furnish a minimum of one extinguisher for each 1,500 square feet of area or major fraction thereof.

2. Travel distance from any work station to the nearest extinguisher shall not exceed 75 feet.

B. Vehicles and Equipment: Provide one extinguisher on each vehicle or piece of

01560-13

BARRIERS

SECTION 01560

The work of this section consists of furnishing, installing, and maintaining barriers to protect existing facilities and the public from construction operations.

1 .1 GENERAL

Material may be new or used, but shall be suitable for intended purpose. Fences and barriers shall be structurally adequate and neat in appearance.

1 .2 FENCING

Safety Barrier Fence: Orange plastic fence, minimum height, 4 feet.

1 .3 BARRICADES AND SIGNS

Manual on Uniform Traffic Control Devices (MUTCD), Part VI, 1988 edition.

1 .4 LUMBER

Free of nails, large knot holes and splinters.

2 .1 PROTECTION OF PUBLIC

A. Barricade, or otherwise block off the immediate work area to prevent unauthorized entry.

B. Erect and maintain barricades, lights, danger signals, and warning signs in accordance with MUTCD-1988.

C. Illuminate barricades and obstructions at night; keep safety lights burning from sunset to sunrise.

D. Protect pedestrian traffic by guardrails or fences.

01560-14

E. When pedestrian traffic is detoured onto a roadway, provide temporary walkways with protection as required at ends and overhead. For walkways, use lumber running parallel to direction of traffic movement and provide ramps at changes of elevation.

F. Cover pipes, hoses, and power lines crossing sidewalks and walkways with troughs using beveled edge boards.

G. Erect and maintain sufficient detour signs at road closures and along detour routes.

2 .2 BARRIER TAPE

Install where directed by Contracting Officer.

2 .3 REMOVAL

Completely remove barriers no longer needed when approved by Contracting Officer.

01785-15

OPERATION AND MAINTENANCE DATA

SECTION 01785

The work of this section consists of furnishing operation and maintenance data manuals.

2 .1 BINDERS

White, commercial quality, hard back, three-ring, 2-inch maximum ring size, lever-locking type slant ring, with clear window pockets on front and side.

2 .2 INDEX SYSTEM

Index sheet with mylar reinforced edges at binder holes and tabbed divider sheets with mylar reinforced edges and pre-printed numbered tabs aligned with numbers and title lines on index sheet.

3 .1 FORM

A. Provide four complete sets of data.

B. Cover Sheet: Identify the project title, location, park, contract number, prime contractor's name and address, date of substantial completion, and binder volume number. Insert cover sheet into clear plastic view pocket on front of binder. Insert sheet with project title and "Operation and Maintenance" into side clear plastic view pocket.

C. Index System: Organize data into sections by common subjects and subsystems.

Place index sheet at the beginning of each binder, listing sections by subject name.

D. Data: Fill binders to no more than 75 percent of capacity. Punch holes shall not obscure any data. Normal sheet size shall be 8-1/2 inches by 11 inches. Fold oversize sheets and insert them in 8-1/2 by 11-inch clear pocket sheet protectors placed in binders. When the contents of a single tabbed section covers more than one item, provide colored paper sheets to separate the data for each item.

01785-16

1. Manufacturers' Data: Provide originals for color or copyrighted data. Black and white data may be originals or clean, good quality reproductions. Where originals are printed on both sides of the page, reproductions shall also be printed on both sides of the page. Copies produced by facsimile transmission and sheets with stamps, such as submittal approval stamps, will not be acceptable. Include only sheets that apply to items installed; cross out inapplicable data.

2. Vendor Furnished As-Built Drawings: Maximum 24-inch by 36-inch sheets with minimum character or lettering size of 1/8 inch. Reduced-size reproductions may be provided instead of full-size drawings if the reproductions are clear and legible.

If reduced-size drawings are used, identify as "REDUCED SIZE" and provide graphic scales, if applicable.

3. Custom Written Data: Typewritten text, supplemented by drawings and schematics necessary to describe systems adequately.

4. Equipment Data Sheet: Typewritten data, using form at the end of this section.

5. Schedules: Clean, typewritten schedules reflecting final, as-installed conditions.

Hand-written mark-ups of schedules submitted earlier are not acceptable.

6. Data that is poorly reproduced or in any way illegible will be rejected.

3 .2 CONTENT

A. Manufacturers' Published Data: Provide all available data, including installation and operating instructions, parts lists, electrical and mechanical schematics, control circuit documentation, performance data, safety instructions, cleaning and care instructions, and illustrations and instructions for maintenance, including lubrication, disassembly and repair, cleaning, and service. Indicate catalog numbers, sizes, colors, options, and other information pertaining to the products furnished which would be required when ordering replacements. For equipment assemblies, provide data for each separate item of equipment furnished as part of the assembly.

B. Custom Written Data: For data not in manufacturer's standard literature, provide text, drawings, and schematics specifically applicable to installed systems. Include step-by-step descriptions of operating procedures; identification of individual components and their functions; descriptions of how system components relate to one another and operate together to accomplish a common process or function; and sequence of operation for system control circuits. For seasonally operated systems, provide start-up and shutdown instructions.

C. Equipment Data Sheets: For each item of equipment included in the operation and maintenance data, provide an Equipment Data Sheet using the form at the end of this section.

01785-17

D. Vendor Furnished As-Built Drawings: Provide for each electrical and each mechanical control system.

1. For each control system, provide control circuit schematic drawings. Identify each wire and terminal block number. Show terminal numbers on all control devices. Show control wires and devices remote from the control panel.

2. For each control panel, provide a general arrangement drawing showing location of each control component and terminal block on the panel front and interior. Include a materials list of all panel-mounted control components as well as field-installed control components remote from the panel, identifying components, manufacturer, model number, and initial set points or sensing ranges of devices where applicable.

3. In addition to the control wiring schematic, provide a power wiring schematic drawing showing the power flow to each motor. Identify each power conductor. Show all overcurrent protection and motor starting devices.

E. Schedules: Provide one copy of material and equipment schedules in the appropriate sections of the manual.

F. Warranties: Place a copy of each manufacturer, supplier, and installer warranty extending for a period greater than one year in a single separately identified tabbed section of the manual.

G. Test Results: Include in the operation and maintenance data copies of test results for mechanical and electrical equipment and systems as listed in the individual specification sections.

H. Subcontractor and Supplier List: List all subcontractors and major suppliers who worked on the project. Include each subcontractor's or supplier's address and telephone number and identify work performed.

01785-18

EQUIPMENT DATA SHEET

Equipment Item: Designation:

Function:

Location:

Project:

Model No.: Serial No.:

Manufacturer Address and Phone: Supplier Address and Phone:

Preventive Maintenance Tasks:

Nameplate Data:

Spare Parts Furnished and Other Information:

01815-19

SYSTEM DEMONSTRATION AND TRAINING

SECTION 01815

SYSTEM DEMONSTRATION AND TRAINING

The work of this section consists of demonstrating systems and equipment to operating personnel. It also includes training of personnel.

1.2 COORDINATION

Schedule demonstrations and training periods with Contracting Officer. Conduct training sessions after the equipment or system has been accepted and turned over to the Government.

PART 2 PRODUCTS NOT USED

3 .1 TRAINING

A. Furnish the services of instructors to train designated personnel in adjustment, operation, including seasonal and emergency operations, if applicable, maintenance, and safety requirements of equipment and systems. Instructors shall be thoroughly trained in operating theory as well as practical operation and maintenance work for each type of equipment or system.

B. Use Operating and Maintenance Data as a training guide.

3 .2 DEMONSTRATION

A. Demonstrate equipment operation to Owner’s operating and maintenance personnel.

Instruct personnel in procedures and schedules related to startup and shutdown, troubleshooting, servicing, preventive maintenance, and how to obtain replacement parts.

B. Familiarize personnel with contents of Operating and Maintenance Manuals.

C. Schedule demonstration and instruction with at least seven days advance notice.

15800-20

HVAC SYSTEMS

SECTION 15800

HEATING, VENTILATING, AND AIR CONDITIONING SYSTEMS

PART 1 - GENERAL

1.1 SECTION INCLUDES

A. Furnish all labor, materials, equipment, services and incidentals required to provide complete, integrated, and operating Heating, Ventilating and Air Conditioning Systems. Materials and equipment to be supplied shall be new, of the best quality as specified.

B. Removal and proper disposal of the existing equipment is included; recycling/reuse is encouraged. Submit recycled material types and weights to park staff for tracking purposes.

C. All motorized equipment shall be provided with vibration control. Vibration control products furnished as integral part of fabricated equipment.

D. Work Included in This Section:

1. Testing and adjusting Equipment and Controls

2. Vibration control.

1.2 SUBMITTALS

A. Provide shop drawings and technical literature covering all equipment and accessories being furnished under this Section. The data shall include information to demonstrate compliance with all of the requirements of these Specifications.

Submittals shall include but not be limited to the following:

1. Manufacturer’s drawings detailing equipment assemblies and bases, and indicating dimensions, weights, required clearances, components, and location of field connections and equipment anchoring points.

2. Fan curves for proposed units, with system operating conditions clearly indicated.

3. Motor ratings and electrical characteristics, plus motor and fan accessories.

4. Manufacturer’s product certification, where applicable.

B. Manuals: Furnish manufacturer's installation, lubrication and maintenance manuals, bulletins and parts lists. Furnish separate list of recommended spare parts, motor and drive replacement part numbers, service depot location and telephone number.

C. Affidavits: Furnish affidavits from the manufacturers stating that the equipment has been properly installed and tested and each is ready for full time operation.

15800-21

1.3 QUALITY ASSURANCE

A. Codes: Comply with all applicable rules and regulations pertinent to the work specified herein.

B. All equipment furnished under this Section shall be of a current design by a manufacturer who has been regularly engaged in the design and manufacture of the

C. Standards and document references in text of this Section shall be the edition current at date project manual was issued.

1. AMCA (Air Movement and Control Association, Inc.)

a. AMCA 99 Standards Handbook

b. AMCA 210 Laboratory Methods of Testing Fans for Rating Purposes

c. AMCA 300 Test Code for Sound Rating Air Moving Devices

d. AMCA 301 Method of Calculating Fan Sound Ratings from

Laboratory Test Data

2. NEMA (National Electrical Manufacturers Association)

a. NEMA MG-1 Motors and Generators

D. Single Source Responsibility: In general, all units of each particular type shall be the products of a single manufacturer.

E. Except as otherwise indicated, obtain vibration control products from single manufacturer. Engage manufacturer to provide technical supervision of installation of vibration control products.

1.4 FIELD VERIFICATION, DESIGN AND PERFORMANCE REQUIREMENTS

A. Contractor is responsible for field verification of existing equipment including installation clearances, design performance and all customization due to non-standard operating conditions. Provide equipment that matches design conditions of the existing equipment.

B. Contractor is responsible for field verification of existing refrigerant piping for size and pressure rating to ensure compatibility with new refrigerant. If new piping is required, provide sizing calculations and layout.

1.5 DELIVERY, STORAGE AND HANDLING

A. Deliver products to site, properly store, and protect until ready for installation and use.

B. Protect motors, shafts, and bearings from weather and construction dust.

C. If units must be stored outside for a prolonged period, store them inside a

15800-22 weathertight structure.

PART 2 - PRODUCTS

2.1 HEAT PUMP SYSTEMS

A. General: The existing HVAC system for the Pearson Air Museum consists of six outdoor heat pump units and six indoor fan coil units (see price schedule for sizes).

B. Heat Pumps:

1. Provide heat pumps suitable for outdoor installation. Unit shall be capable of automatically switching between cooling and heating modes. Units shall be equipped with anti-short cycle timer and evaporator defrost control or equivalent. Units shall have a Coefficient of Performance (COP) rating of

3.6 for high temperature Btuh rating and 2.3 for low temperature Btuh rating.

2. Electrical: verify existing service connection.

3. Refrigerant: Refrigerant shall be R-410A.

4. Install 3-phase monitor heat pumps to protect equipment against electrical dropout.

5. Add filter dryer in refrigerant lines.

C. Fan Coil Units:

Unit shall be compatible with the existing Air Handling Unit and maintain the original function of the unit as designed by the manufacturer but accept R-410A refrigerant.

D. Heat Exchanger Unit (Option A):

Unit shall be compatible with the existing Unit and maintain the original function of the unit as designed by the manufacturer but accept R-410A refrigerant.

E. Make-up Air Unit (Option B):

Unit shall be compatible with the existing Unit and maintain the original function of the unit as designed by the manufacturer

F. Refrigerant/Condensate Piping

1. Pipe: Copper, ASTM B-280 Type ACR, type L seamless copper tubing, annealed coils or hard drawn straight lengths.

2. Joints: Shall be silver soldered or brazed.

3. Flexible Connectors:

a. Rating: 500 psig maximum.

b. Type: Seamless core, minimum 7 inches in length.

c. Connections: Solder end.

d. Materials: Tin bronze or stainless steel core, high tensile bronze braid covering.

4. Insulation:

15800-23

a. Insulation shall be flexible elastomeric cellular material. Insulation shall have a “K” factor of not more than 0.28 at 70°F. Provide vapor barrier and a PVC, aluminum or stainless steel jacket. Existing insulation may be re-used where possible without compromising its performance.

b. Provide waterproof seals at the termination of insulation jacket at outdoor locations.

5. Supports:

a. Provide pipe supports in accordance with pipe manufacturer’s recommendations. Supports designated to allow axial pipe movement shall have smooth and even contact surfaces.

b. Materials: All support systems shall be galvanized steel. Trays for continuous support of plastic pipe or tubing shall be made of 20-gauge galvanized steel.

c. Insulation Protection Shields: Provide insulation protection shields at all pipe supports for insulated piping.

d. Annealed copper tubing must be supported at no less than 5-foot intervals.

G. THERMOSTATS

Replace thermostats only where necessary for upgraded equipment. Reuse existing wiring.

PART 3 - EXECUTION

3.1 GENERAL

A. Examination, Coordination and Incorporation of Related Work:

1. Examine areas and conditions for compliance with requirements for installation tolerances, equipment supports, and other conditions affecting performance of

2. Do not proceed until unsatisfactory conditions have been corrected.

B. Protection: Fully protect all unfinished parts of the materials and equipment against damage from whatever cause during the progress of the work and until final completion. All materials and equipment shall be covered while in storage and during construction in such manner that no finished surfaces shall be damaged or marred and all moving parts shall be kept perfectly clean and dry.

3.2 EQUIPMENT INSTALLATION

A. Connect condensate drain pans using 1-¼-inch, Type M copper tubing. Extend to the nearest equipment or floor drain. Construct deep trap at connection to drain pan and install cleanouts at changes in direction.

B. Contractor shall reuse existing DX piping to accept R-410A refrigerant

15800-24 per manufacturer’s recommendations and industry standards.

C. Install units level and plumb with proper clearance and access for inspection and servicing.

D. Install units with resilient mountings and flexible electrical leads.

E. Furnish and install all sheet metal transitions required to attach new units to existing ductwork.

F. Install heat pumps where they exist currently and anchor securely. Alternative locations must be approved by the COR.

G. Air handling units and thermostat in the utility rooms to remain in existing locations;

strapped securely to structural members.

H. Electrical Connections: The following requirements apply:

1. All work to be done by an electrician licensed by the state of Washington.

2. Temperature control wiring and interlock wiring shall be per equipment manufacturer’s recommendation.

3. Grounding: Connect unit components to ground in accordance with the National

Electrical Code.

3.3 TESTING AND ADJUSTING EQUIPMENT AND CONTROLS

A. The equipment and controls shall be completely tested, adjusted and placed in operating condition. Retest equipment and controls, as necessary, during the progress of the work. No work shall be covered until it is properly tested and made tight. Supply the testing apparatus and make all necessary connections for applying the tests.

B. Before filling refrigerant lines with refrigerant, nitrogen test to 400 PSI and hold for 30 minutes. Test for leaks, then empty lines of nitrogen and place a vacuum on refrigerant lines to 500 microns for 30 minutes. Test for leaks. Fill lines with refrigerant while in vacuum. Weigh in required charge.

C. Lubricate, start, and balance units in accordance with manufacturer’s written instructions.

D. When about to turn the apparatus over to the Owner, put all parts of the apparatus in perfect working order and thoroughly clean out all parts of the equipment.

E. Clean exterior and interior surfaces of each unit.