Atch_1_Specifications.pdf

Div. 1 Page | 1

Badlands National Park 25261 Ben Reifel RD

Interior SD 57750

Replace Gas Fired Furnace And Cooling Unit QRTS 45 A,B,D

PMIS 321134

PROJECT SPECIFICATIONS

NATIONAL PARK SERVICE

3/10/2022

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TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS…………………………………………………………..……3

Section 01 10 00 - Division 01 Short Form General Requirements

DIVISION 23 – GAS-FIRED FURNACES WITH COOLING……………………………………….….15

Section 235416.13 – GAS-FIRED FURNACES WITH COOLING

SUBMITTIALS……………………………………………………………………………………..……….22

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SECTION 01 10 00

DIVISION 1 SHORT FORM GENERAL REQUIREMENTS

PART 1 – GENERAL

ITEM 1 - DESCRIPTION OF WORK

1.1 Background: Badlands National Park is replacing 3 gas fired furnaces and 3 condenser/evaporator units at one of its apartment complexes. The units have exceeded their life expectancy of 10-15 years.

Replacing the units at the maximum end of the expected service life will reduce repair cost and provide for a more efficient operation and uninterrupted service. The new HVAC units and components are to be installed within the existing components footprints.

1.2 Work Covered by the Contract Documents:

A. Project Location: 25256 Ben Reifel Place, Interior, SD 57750

B. Work consists of: Remove three (3) propane fired furnaces and Three (3) condenser and evaporator coil units which supplies the heating and air conditioning equipment for the facility.

Install Three (3) new high efficiency Propane Furnaces, Condensing, and Evaporator Coils with line sets and all required appetences. All equipment shall be 96.0 AFUE or higher efficiency and qualify as “Energy Star” rated under the Environmental Protection Agencies (EPA) Energy Star Program. The air-conditioning equipment shall have a minimum SEER rating of 14. Modification of units with smaller energy ratings with supplementary/ancillary components to achieve a higher “system” rating equivalent to the Energy Star value will not be permitted. Condensing unit and evaporator coil must use 410A refrigerant. Current existing system line sets shall be replaced. All new heating and cooling equipment shall fit into the same space/location unless otherwise approved. Test and balance the new system to design standards according to AABC (Associated Air Balance Council) procedural standards. All new units shall match existing Supply and Return duct work connection dimensions

C. All work will be performed under a single contract.

Period of performance: Work shall be completed within 140 calendar days of the start date provided on the Notice to Proceed. The period of performance is inclusive of 0 weather days.

120 days are scheduled for delivery of material due to manufacture issues with supplies.

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ITEM 2 - EXISTING UTILITIES

2.3 Existing Utility Interruptions: Do not interrupt utilities serving facilities occupied by Government or others unless permitted under the following conditions and then only after arranging to provide temporary utility services according to requirements indicated below:

2.3.1 Notify CO and COR not less than two business days (Monday through Friday) in advance of proposed utility interruptions.

2.3.2 Hours for Utility Shutdowns: Shutdowns shall not exceed 8 hours. Temporary provisions will be needed by the Contractor for periods longer than stated allowance or if required for critical systems as determined by COR.

ITEM 3 - CONTRACTOR’S USE OF PREMISES

3.1 Conduct of Operations: At all times the contractor shall conduct his operations in conformance with the rules and regulations promulgated by the Secretary of the Interior for the National Park Service, and applicable park rules and regulations prescribed by the Park Superintendent.

https://www.nps.gov/badl/learn/management/superintendent-s-compendium.htm

A. No signs or advertisements (except those specified herein and as required for safety) shall be displayed on the construction site or within the park unless approved by the Contracting Officer.

B. Smoking is not permitted within any Federal building or within 25 feet of entrances, operable windows, or outdoor air intakes.

C. Public Use of Site: Contractor shall at all times conduct operations to ensure the least inconvenience to the tenants occupying apartment buildings.

3.2 On-site work hours: Work shall be generally performed during normal business working hours of 8 a.m. to 4:30 p.m., Monday through Friday, except when otherwise indicated.

A. Work on Saturdays, Sundays, Federal holidays, early morning, or at night may not be performed without prior consent from the CO and COR. Submit requests for work outside of the stated normal business hours to the CO and COR for approval at least 48 hours in advance of the work.

The following Federal holidays are observed by the National Park Service:

New Year Day Martin Luther King, Jr’s Birthday Washington’s Birthday Memorial Day Juneteenth National Independence Day Independence Day Labor Day Columbus Day Veterans Day Thanksgiving Day https://www.nps.gov/badl/learn/management/superintendent-s-compendium.htm

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Christmas Day

B. Note: Any of the above holidays falling on a Saturday will be observed on the preceding Friday;

holidays falling on Sunday will be observed on the following Monday. The specific day that each holiday is recognized for each year can be found at the following site: Federal Holidays (opm.gov).

3.3 Contractor Use of Site:

A. General: Contractor shall have limited use of the site for construction operations. Limit use of premises to construction area. Do not disturb portions of Project site beyond areas in which the Work is indicated.

B. Limits: inside utility room, crawl space under apartment building, parking area for utility vehicle and existing pads for outdoor cooling units

C. Driveways and Entrances: Keep driveways, access roads, and entrances serving premises clear and available to Government, Government's employees, and emergency vehicles at all times. Do not use these areas for parking or storage of materials. Schedule deliveries to minimize use of driveways and entrances.

D. Limit site disturbance

a. Parking lot for delivery of material

b. Utility room where furnaces are located

c. No further than 25 feet from building structure to access outdoor cooling system

d. Crawl space to access low and high-pressure cooling lines

E. Utilities

a. General: Cost or use charges for temporary facilities shall be included in the Contract

Sum as required.

b. Water Service: Water from existing water system is available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. Use resources wisely and minimize waste of water.

c. Electric Power Service: Electric power from existing system is available for use without metering and without payment of use charges. Provide connections and extensions of services as required for construction operations without any additional permit costs. Power may or may not meet Contractor’s construction power tool requirements, provide generators if questionable. Use power in a resourceful manner and avoid excess power waste.

d. Toilets: Contractor can choose to use public restrooms at Ben Riefel Visitor Center which is about .5 miles away or can have contractor provided for contracting personnel, sufficiently lighted and ventilated toilet facilities in weatherproof, sight proof, handicap accessible (if required), sturdy enclosures with privacy locks. Coordinate with COR for approved location if not shown on attached site plan.

F. Security and Protection facilities:

1. Environmental Protection: Provide protection, operate temporary facilities, and conduct construction in ways and by methods that comply with state and federal environmental regulations and that minimize possible air, waterway, and subsoil contamination or pollution or other undesirable effects.

https://www.opm.gov/policy-data-oversight/pay-leave/federal-holidays/#url=2022 https://www.opm.gov/policy-data-oversight/pay-leave/federal-holidays/#url=2022

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1. Cleaning of Equipment: The Contractor shall ensure that prior to moving on to the Project Area, all equipment, is free of soil, seeds, vegetative matter, or other debris that could contain or hold seeds. Ensure that all equipment has been pressure washed and is free of exotic species prior to start-up of operations and moving of equipment to Project Area. Equipment shall be considered free of soil, seeds, and other debris when a visual inspection does not disclose such material. Disassembly of equipment components or specialized inspection tools are not required.

2. Tree and Plant Protection: N/A

3. Pest Control: Follow best practices to minimize attraction and harboring of rodents, roaches, and other pests and to perform extermination and control procedures at regular intervals so Project will be free of pests and their residues at project completion. Perform control operations lawfully, using environmentally safe materials.

4. Site Enclosure Fence: N/A

5. Security Enclosure and Lockup: N/A

6. Temporary Enclosures: N/A

3.4 Storage - Staging Areas:

A. Confine Storage of materials and equipment to the project staging area noted on the photos provided.

3.5 Preservation of Natural Features: N/A

3.7 Housekeeping:

A. Keep project neat, orderly, and in a safe condition at all times.

a. Dispose of waste materials and recycling legally outside the park. The contractor shall not use park dumpsters

b. Address Recycling: Government goal is to salvage and recycle as much nonhazardous construction waste as possible. Use sustainable methods to extent possible during this project, recycling material as is probable with local means. Maintain accurate documentary records for submittal of all recycled materials used including fly ash and slag cement.

3.8 Occupancy Requirements for Buildings:

A. Existing Buildings:

1. Full Government Occupancy: Government will occupy buildings that will be under construction during the entire contract period. Cooperate with Government during construction operations to minimize conflicts and facilitate Government usage. Perform the Work so as not to interfere with Government's day-to-day operations. Maintain existing exits, unless otherwise indicated.

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a. Maintain access to existing walkways, corridors, and other adjacent occupied or used facilities. Do not close or obstruct walkways, corridors, or other occupied or used facilities without written permission from the CO or COR.

b. Maintain existing building in a weather tight condition throughout construction period. Repair damage caused by construction operations. Protect building and its occupants during construction period.

3.9 Photo Documentation:

Contractor must provide existing condition, progress and completion photos. All photos shall be in focus, show maximum range of depth of field general photo and then close up detail photo as needed. Shall be in JPEG digital form and submitted electronically by email or via CD-R Archival Gold or DVD-R Archival Gold media with printed labels and 8 mega pixels minimum within 7 days from time of taken or as approved by COR.

A. Existing Condition Images:

Before starting construction, take color, dated, digital images of project site and adjacent property/roads/etc. that may be impacted by construction activity/traffic. Include existing items to remain or be salvaged from different vantage points and with context for location identification.

B. Construction Progress Images:

1. Document all sub-surface work/ trenches etc. prior to backfill with photos covering enough overall field view to show location and then zoom in for details. (Locations and dimensions shall also be noted on as built drawing set.)

2. Maintain organized index for photos with date, description, etc.

3. Additional images as needed when questions or emergency situations occur. Submit within 24 hours.

C. Completion Images:

1. Document all completed work within scope of work.

2. Maintain organized index for photos with date, description, etc.

3. Additional images as needed when questions or emergency situations occur. Submit within 24 hours.

3.10 Fire and Life Safety:

As a minimum, conduct one weekly 15 minute "toolbox" safety meetings. These meetings shall be conducted by a foreman or supervisor and attended by all construction personnel at the worksite. Topics need to coincide with work scheduled for the following week. Document and submit meeting minutes to the CO and COR within one day after the meeting and document the meetings on the daily reports.

A. Comply with the requirements of NFPA 241 (Standard for Safeguarding Construction, Alteration, and Demolition Operations).

B. Store and handle hazardous materials in accordance with manufacturer’s and OSHA 29CFR1926 Subpart D requirements 1926 | Occupational Safety and Health Administration https://www.osha.gov/laws-regs/regulations/standardnumber/1926

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(osha.gov). Maintain readily available, on site, MSDS/Safety Data Sheets (SDS) for each chemical.

i. Immediately report all spills of hazardous materials to the CO, COR and park.

ii. Maintain a spill emergency response kit.

iii. Train employees how to respond to a spill and use the emergency response kit.

3.11 Noise and Acoustics Management

A. Noise Control: Perform noise-producing work in less sensitive hours of the day or week as directed by the Contracting Officer or COR.

B. Repetitive and/or intermittent, high-level noise: Permitted only during Daytime.

1. Do not exceed the following dB(A) limitations at 50 feet:

Sound Level in dB(A) Time Duration of Impact Noise 70 More than 12 minutes in any hour 80 More than 3 minutes in any hour

2. Maximum permissible construction equipment noise levels at 50 feet:

EARTHMOVING dB(A) MATERIALS HANDLING dB(A) Compressors 75 Pneumatic Tools 80 Pumps 75 Saws 75 Generators 75 Vibrators 75

C. Ambient Noise:

1. Maximum noise levels (dB) for receiving noise area at property line shall be as follows:

a. Residential receiving area :

Daytime: 65 dB Nighttime: 45 dB

b. Commercial/Industrial receiving area:

Daytime: 67 dB Nighttime: 65 dB

ITEM 4 - COMMENCEMENT, PROSECUTION, AND COMPLETION

4.1 The Contractor shall commence work in accordance with the terms and conditions of the contract.

Contractor shall coordinate and incorporate long lead and delivery time items within the schedule.

ITEM 5 - EXAMINATION OF THE SITE

5.1 All bidders are urged to visit the job site and examine existing conditions before submitting bids.

Contractors will be accountable for understanding existing conditions. No cost changes for items viewable during site visit will be allowed.

ITEM 6 - ABBREVIATIONS

6.1 The list of abbreviations, standards and organizations which may be used in/referred within the Construction Specifications or Special Provisions, may be found linked from the listed page below. On https://www.osha.gov/laws-regs/regulations/standardnumber/1926

Page | 9 the home page, follow the link under “Contracting and Procurement” labeled “NPS Reference Standards.”

https://www.nps.gov/orgs/1671/do-business-with-us.htm

ITEM 7 - ACCIDENT PREVENTION

7.1 Description: The work of this section consists of establishing and implementing an effective accident prevention program (APP) and providing a safe environment for all personnel and visitors.

7.2 Submittals:

A. Accident Prevention (Safety) Plan (APP): Submit a site-specific accident prevention (safety) plan. The Plan shall be written to comply with OSHA and project requirements (a generic plan is not acceptable) including but not limited to the following:

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

2. First aid and rescue procedures.

3. Training, both initial and continuing.

4. Outline of each phase of the work, the hazards associated with each major phase, and the methods proposed to provide for property protection and safety of the public, National Park Service personnel, and Contractor's employees. Identify the work included under each phase, with a Job Hazard Analysis (JHA)/Job Safety Analysis (JSA), etc. A sample JHA template may be provided upon request.

5. Planning for possible emergency situations, earthquake, explosions, fires, floods, power outages, slides, and windstorms. Such planning shall take into consideration the nature of construction, site conditions, and degree of exposure of persons and property.

6. Contractor to identify nearest location of medical facility for emergencies

7. Recognition that work will be performed in remote areas with limited communication or cell phone coverage if applicable.

8. Supplemental hazard specific plans may be required IAW 29 CFR 1926 or 1910.

B. Meeting and Inspection Reports: Safety Meetings: As a minimum, conduct 15 minute

"toolbox" safety meetings. These meetings shall be conducted by a foreman and attended by all construction personnel at the worksite. Submit a report of safety meetings and inspections to CO and COR within one day after the meeting and document the meetings on the daily reports.

7.3 Qualification of Employees:

A. Ensure that employees are physically qualified to perform their assigned duties in a safe manner to include operators of vehicles and equipment. Provide operating instructions for all equipment.

B. 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.

7.4 Accident Reporting: The Contractor shall report all accidents to the CO and COR as soon as safely possible and assist the CO and COR and other officials as required in the investigation of the accident.

https://www.nps.gov/orgs/1671/do-business-with-us.htm

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7.5 First Aid Facilities: Provide access to facilities for the number of employees and appropriate to the hazards associated with the types of ongoing construction work at the site.

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

7.7 Personal Protective Equipment (PPE): It is the Contractor's responsibility to require all those working on or visiting the site to wear necessary protective equipment at all times.

A. PPE must meet requirements of applicable ANSI standards. Selection shall conform to OSHA 29CFR 1926 Subpart E.

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

C. All PPE will be serviceable at all times. At a minimum, maintain 1 set of PPE including hard hats and all other Accident Prevention Plan required equipment.

7.8 Hazardous Materials: It shall be the responsibility of all operators and contractors, functioning within the park to properly cleanup, mitigate and remediate, if necessary, all unauthorized discharges of hazardous materials or non-hazardous chemical and biological products released from fleet and/or other support vehicles or stationary sources. Response shall be consistent with guidelines established by federal, state and local regulations, and as outlined within the operator's Safety or Hazardous Materials Business Plan.

A. If a spill, leak or other release occurs, the operator shall as soon as possible, without impeding cleanup, notify the National Park Service Emergency Dispatch.

ITEM 8 - PRECONSTRUCTION CONFERENCE: If the Contracting Officer decides to conduct a preconstruction conference, the successful offeror will be notified and will be required to attend. The Contracting Officer’s notification will include specific details regarding the date, time, and location of the conference, any need for attendance by subcontractors, and information regarding the items to be discussed. See Item 9.1C below.

ITEM 9 - SUBMITTALS

9.1 General Submittal Procedures:

A. General: Prepare and submit submittals required by individual Technical Specification Sections. Types of submittals are indicated in individual specific sections.

1. CM-16 Transmittal Form: All submittals shall be transmitted via electronic email using

National Park Service form CM-16 form. The form will be provided by the Contracting Officer. No action will be taken on a submittal item unless accompanied by the CM-16 transmittal form. Submit completed CM-16 forms to the CO and the COR

B. Submittal List: administrative required submittals are listed below in 9.1.C and does not include technical section submittal requirements included in each technical section.

C. Preconstruction Conference Submittal: Satisfactory evidence of liability insurance coverage and workman’s compensation, and any applicable bonds, must be submitted within 10

Page | 11 calendar days of Notice of Award. The following items shall be submitted a minimum of one week prior to the Preconstruction Conference. If all of these documents have not been received one week prior to the scheduled Pre-Construction Conference date, the conference will be cancelled, Notice to Proceed may not be issued, and the Contracting Officer will consider other contractual remedies. Work shall not commence until written Notice to Proceed has been issued. Contracting Officer will notify Contractor of tentative date for the Pre- Construction Conference:

1. Letter designating Project Superintendent.

2. Construction Schedule. (Must include procurement time including long lead time items, mobilization, trade work progression and completion at minimum.)

3. A comprehensive breakdown of the Schedule of Values.

4. Accident Prevention (Safety) Plan (see section 7 of this document).

5. A list of Subcontractors for this project.

6. Written statements from subcontractors certifying compliance with applicable labor standard clauses (SF1413).

7. Quality Control Plan.

9.2 Product Data, and Samples: Contracting Officer will provide sample cover sheet.

A. Product Data: Provide component construction and specification data sheets, anchorage requirements and any other product specific data.

1. Submit Product Data according to Part 9.1 of this section to include one digital file (.PDF or .TIF) to COR.

B. For submittals specified above, forward submittals to Contracting Officer and COR at least 15 days before need for approval (depends on length of project).

C. After approving submittals, Contracting Officer and/or COR will return one copy to the Contractor.

If submittals are not approved, Contracting Officer will return all copies to Contractor with reasons for rejection. Resubmit, identifying changes. Any work done before approval shall be at Contractor's own risk.

9.3 Approved Equals: If an item in this solicitation is identified as “brand name or equal” or lists more than 1 manufacturer, the description of the proposed item must reflect the characteristics and level of quality that will satisfy the Government’s needs as demonstrated by the salient physical, functional, or performance characteristics that “equal” products must meet and/or exceed that as specified in the solicitation or relevant specification.

A. For each item proposed as an “approved equal,” submit supporting data, including:

1. Drawings and samples as appropriate.

2. Comparison of the characteristics of the proposed item with that specified and with the salient characteristics provided.

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

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

5. Manufacturer’s literature regarding installation, operation, and maintenance, Page | 12 including schematics for electrical and hydraulic systems, lubrication requirements, and parts lists. Describe availability of maintenance service, and state source of replacement materials.

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

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

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

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

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

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

C. Approved Equals will be evaluated and approved/disapproved during the submittal process.

9.4 Progress Reporting: The initial Construction Schedule and Schedule of Values are required a minimum of one week prior to the Preconstruction Conference. After the Notice to Proceed is issued and after on-site work begins, progress will be documented via daily logs and by providing an updated Construction Schedule and Schedule of Values when requested; but minimally with each pay application.

Submit digital copy electronically (PDF preferred) of all required documents. Construction Schedules are normally in bar chart form and indicate estimated starting and completion dates for each part of the work.

For a pay application to be reviewed and processed in a timely manner, the following information must either be submitted prior to or accompany submission of the pay application:

A. Daily/weekly progress reports during construction as part of the administration process.

B. Updated Schedule of Values: Breakdown each lump-sum item into component work activities used in the schedule, for which progress payments may be requested. The Schedule of Values will form the basis for payment. The work activities broken out within the schedule of values shall be integrated into and made a logical part of the construction baseline schedule submitted under this specification. The total costs for the component work activities shall equal the contract price for that lump-sum item. The Contracting Officer may request data to verify accuracy of dollar values. A sample Schedule of Values format may be provided upon request.

ITEM 10 – TEMPORARY SERVICES

10.1 It is the Contractor’s responsibility to provide temporary services, equipment, tools, and skilled labor as required for the chosen means and methods to perform the work in accomplishing this Contract.

ITEM 11 - PROJECT CLOSEOUT

11.1 Description: The work of this section consists of final cleanup, closeout submittals, final inspection procedures working toward Final Acceptance.

11.2 Cleaning: Remove all tools, equipment, surplus materials, and rubbish. Move attic stock to location coordinated with COR. At time of final inspection, project shall be thoroughly clean and ready for intended use. Inspector holds the right to reschedule if project is not ready for inspection.

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11.3 Completion and Final Inspection: Contractor shall submit written certification of project completion and request a final inspection to the Contracting Officer and COR. The Contracting Officer or designee will make an inspection within 10 days of receipt of request or at a mutually agreeable time.

A. If the work is determined to be complete following the final inspection with minor comments, the

COR will prepare and provide the Contractor a Punch List noting outstanding items to be addressed.

B. If the work is not determined to be complete following the final inspection, the Contracting Officer will notify Contractor in writing, stating reasons. Contractor, after completing the work according to the Contract Documents, shall resubmit completion and request a new final inspection. Re-inspection costs may be charged against the Contractor in accordance with the Inspection of Construction contract clause.

C. Contractor shall complete the Punch List within 30 calendar days or a time directed by the CO.

D. Once Contractor completes all items of work on the Punch List and all contractually required items are accepted, Contracting Officer will issue Letter of Final Acceptance of Work and request the final pay application.

E. If the Contractor fails to complete the work within the time frame, the Contracting Officer may correct the work with an appropriate reduction in contract price or charge for re-inspection costs in accordance with the Inspection of Construction contract clause.

F. Disposition of any permits and warranties required by the specifications in this section.

11.4 Final Acceptance of the Work: After all punch list deficiencies have been corrected, a Letter of Final Acceptance will be issued. A Release of Claims document must be executed and submitted to the Contracting Officer before final payment can occur.

11.5 Warranties

A. Construction Warranty shall be based on date of final acceptance of the work and remain in effect for one year.

B. Provide all manufacturer warranty information of products installed organized by Division. All contact information, extent of coverage and conditions shall be clearly noted as well as date of overall final acceptance.

C. Information shall include operation and maintenance manuals for each warranted product.

END OF SECTION

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SECTION 235416.13 GAS-FIRED FURNACES WITH COOLING

PART 2 - GENERAL

2.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

2.2 SCOPE OF WORK

A. Project Location: Badlands National Park 25256 Ben Reifel Place, Interior, SD

B. Building(s) Name/Identifier: QRTS 45

C. Demolition work includes:

1) Removal of existing heating and cooling systems.

2) Evacuate and remove refrigeration piping completely. Disconnect condensing unit power and control wiring back to the power and control panels.

3) Removal of concrete pad or roof structure supporting condensing unit if not reused.

4) Patch and repair of all wall, ceiling, and floor penetrations to match existing conditions.

2.3 ACTION SUBMITTALS

A. Product Data: For each type of product.

1. Include rated capacities, operating characteristics, furnished specialties, and accessories.

2.4 INFORMATIONAL SUBMITTALS

A. Sample Warranty: For special warranty.

2.5 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For each furnace to include in emergency, operation, and maintenance manuals.

1. Include the following:

a. Furnace and accessories complete with controls.

b. Air filter.

c. Condensing Unit, Coil, and Refrigeration components.

2.6 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials described below that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Disposable Air Filters: Furnish two complete sets.

2.7 QUALITY ASSURANCE

A. ASHRAE Compliance: Applicable requirements in ASHRAE 62.1, Section 5 - "Systems and

Equipment" and Section 7 - "Construction and Startup."

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B. ASHRAE/IES 90.1 Compliance: Applicable requirements in ASHRAE/IES 90.1, Section 6 - "Heating, Ventilating, and Air-Conditioning."

C. Comply with NFPA 70.

2.8 WARRANTY

A. Special Warranty: Manufacturer agrees to repair or replace the following components of furnaces that fail in materials or workmanship within specified warranty period:

1. Warranty Period, Commencing on Date of Substantial Completion:

a. Furnace Heat Exchanger: 20 years.

b. Integrated Ignition and Blower Control Circuit Board: Five years.

c. Draft-Inducer Motor: Five years.

d. Refrigeration Compressors: 5 years.

e. Evaporator and Condenser Coils: Five years.

PART 3 - PRODUCTS

3.1 ASSEMBLY DESCRIPTION

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, Article 100, by a qualified testing agency, and marked for intended location and application.

3.2 GAS-FIRED FURNACES, CONDENSING

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following or approved equal:

1. American standard 4TXCB003DS3HCA, 4A7A4018H, S9X1B040D3

2. Carrier Corporation; a unit of United Technologies Corp.

3. Rheem Manufacturing Company; Heating and Cooling Products.

4. Ruud Air Conditioning Division.

5. Trane.

6. Other Approved Equals.

B. Cabinet: Galvanized steel.

1. Cabinet interior around heat exchanger shall be factory-installed insulation.

2. Lift-out panels shall expose burners and all other items requiring access for maintenance.

3. Factory paint external cabinets in manufacturer's standard color.

4. Airstream Surfaces: Surfaces in contact with the airstream shall comply with requirements in ASHRAE 62.1.

C. Fan: Centrifugal, factory balanced, resilient mounted, direct drive.

1. Special Motor Features, ECM: Electronically controlled motor (ECM) controlled by integrated furnace/blower control.

D. Type of Gas: Propane E. Heat Exchanger:

1. Primary: Stainless steel.

F. Burner:

1. Gas Valve: 100 percent safety modulating main gas valve, main shutoff valve, pressure regulator, safety pilot with electronic flame sensor, limit control, transformer, and combination ignition/fan timer control board.

2. Ignition: Electric pilot ignition, with hot-surface igniter or electric spark ignition.

G. Gas-Burner Safety Controls:

1. Electronic Flame Sensor: Prevents gas valve from opening until pilot flame is proven;

stops gas flow on ignition failure.

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2. Flame Rollout Switch: Installed on burner box; prevents burner operation.

3. Limit Control: Fixed stop at maximum permissible setting; de-energizes burner on excessive bonnet temperature; automatic reset.

H. Combustion-Air Inducer: Centrifugal fan with thermally protected motor and sleeve bearings pre-purges heat exchanger and vents combustion products; pressure switch prevents furnace operation if combustion-air inlet or flue outlet is blocked.

I. Furnace Controls: Solid-state board integrates ignition, heat, cooling, and fan speeds;

adjustable fan-on and fan-off timing; terminals for connection to accessories; diagnostic light with viewport.

1. Combination Combustion-Air Intake and Vent: PVC plastic fitting to combine combustion-air inlet and vent through roof.

2. CPVC Plastic Vent Materials:

a. CPVC Plastic Pipe: Schedule 40, complying with ASTM F441/F441M.

b. CPVC Plastic Fittings: Schedule 40, complying with ASTM F438, socket type.

c. CPVC Solvent Cement: ASTM F493.

3. PVC Plastic Vent Materials:

a. PVC Plastic Pipe: Schedule 40, complying with ASTM D1785.

b. PVC Plastic Fittings: Schedule 40, complying with ASTM D2466, socket type.

c. PVC Solvent Cement: ASTM D2564.

J. Capacities and Characteristics:

1. Airflow Configuration: Counterflow.

2. Gas:

a. Type: Propane.

b. Venting Type: Power venter with combustion-air intake.

c. Efficiency AFUE: 96%. 95% Minimum

d. Input: 40,000 Btu/h.

e. Heat Output: 38,900 Btu/h.

f. Gas Connection Size: 1/2” NPS.

g. Combustion-Air Connection Inlet Size: 2”

h. Combustion-Air Inlet Material: PVC.

i. Heat-Exchanger Condensate Drain Size3/4”.

j. Vent Connection Size: 2”.

k. Vent Material: PVC.

3. Fan & Furnace Electrical Connection:

a. Airflow: 620 cfm.

b. External Static Pressure: 0.5 inches wg.

c. Motor:

1) Size: ½ horsepower.

2) Speed: 1075

d. Volts: 120.

e. Phase: Single.

f. Hertz: 60.

g. Amperage rating 8.8A.

h. Maximum Overcurrent Protection (MOP): 15.

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3.3 THERMOSTATS

A. Controls shall comply with requirements in ASHRAE/IES 90.1, Section 6 - "Heating, Ventilating, and Air Conditioning."

B. Solid-State Thermostat: Wall-mounted, programmable, microprocessor-based unit with automatic switching from heating to cooling, preferential rate control, seven-day programmability with minimum of four temperature presets per day, and battery backup protection against power failure for program settings.

C. Control Wiring: Balanced twisted-pair cabling.

1. Description: Screened and shielded twisted pairs (F/FTP), No. 24 AWG, 100 ohms, four pair.

2. Cable Jacket Color: Blue.

3.4 AIR FILTERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following or approved equal:

1. Aprilaire; Research Products Corp.

2. Filtrete Home Filtration Products; a 3M brand.

3. General Filters, Inc.

4. Permatron Corporation.

B. Disposable Filters: 2” thick fiberglass media with ASHRAE 52.2 MERV rating of 8 or higher, in sheet metal frame.

3.5 REFRIGERATION COMPONENTS

A. General Refrigeration Component Requirements:

1. Refrigeration compressor, coils, and specialties shall be designed to operate with R- 410A Refrigerant.

2. Refrigeration components and cooling system to be by the same manufacturer as the furnace with published cooling performance data as an assembly.

3. Energy Efficiency: Equal to or greater than prescribed by ASHRAE/IES 90.1.

B. Refrigerant Coil: Copper tubes mechanically expanded into aluminum fins. Comply with

AHRI 210/240. Match size with furnace. Include condensate drain pan with accessible drain outlet complying with ASHRAE 62.1.

1. Refrigerant Coil Enclosure: Steel, matching furnace width with access panel and flanges for integral mounting on furnace cabinet and galvanized sheet metal drain pan coated with black asphaltic base paint.

C. Refrigerant Line Kits: Annealed-copper suction and liquid lines factory cleaned, dried, pressurized with nitrogen, sealed, and with suction line insulated. Provide in standard lengths for installation without joints, except at equipment connections.

1. Flexible Elastomeric: Closed-cell, sponge- or expanded-rubber materials. Comply with

ASTM C534/C534M, Type I, 1 inch (25 mm) thick.

D. Air-Cooled Compressor-Condenser Unit:

1. Casing: Steel, finished with baked enamel, with removable panels for access to controls, weep holes for water drainage, and mounting holes in base. Provide brass service valves, fittings, and gage ports on exterior of casing.

2. Compressor: Hermetically sealed scroll type.

a. Crankcase heater.

b. Vibration isolation mounts for compressor.

c. Compressor motor shall have thermal- and current-sensitive overload devices, start capacitor, relay, and contactor.

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d. Two-speed compressor motors shall have manual-reset high-pressure switch and automatic-reset low-pressure switch.

e. Refrigerant: R-410A.

3. Refrigerant Coil: Copper tube, with mechanically bonded aluminum fins, complying with

AHRI 210/240, and with liquid subcooler.

4. Fan: Aluminum-propeller type, directly connected to motor.

5. Motor: Permanently lubricated, with integral thermal-overload protection.

6. Low Ambient Kit: Permits operation down to 45 deg F (7 deg C).

7. Mounting Base: Polyethylene

E. Capacities and Characteristics:

1. Refrigerant Coil:

a. Total Cooling Capacity: 30,000 Btu/h.

b. Condensate Drain Size: 3/4”.

2. Compressor-Condenser Unit:

a. Cooling Energy Efficiency 14.5 SEER

b. Volts: 208/230.

c. Phase: Single.

d. Hertz: 60.

PART 4 - EXECUTION

4.1 EXAMINATION

A. Examine areas and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

B. Examine factory-installed insulation before furnace installation. Reject units that are wet, moisture damaged, or mold damaged.

Some guidance should be given to the contractor on the intent for routing of natural gas and refrigerant piping. Ideally the amount of outdoor, exposed refrigerant piping should be minimized for system performance and life of the refrigerant insulation. The length of refrigerant piping should also be minimized.

C. Examine roughing-in for gas and refrigerant piping systems to verify actual locations of piping connections before equipment installation.

D. Proceed with installation only after unsatisfactory conditions have been corrected.

4.2 INSTALLATION

A. Install gas-fired furnaces and associated fuel and vent features and systems according to

NFPA 54.

B. Install ground-mounted compressor-condenser components on polyethylene mounting base.

4.3 PIPING CONNECTIONS

A. Install piping adjacent to equipment to allow service and maintenance.

B. Vent and Combustion-Air Connection, Condensing, Gas-Fired Furnaces: Connect plastic piping vent material to furnace connections and extend outdoors. Terminate vent outdoors with a cap and in an arrangement that will protect against entry of birds, insects, and dirt.

1. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe.

2. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly.

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3. Plastic Piping Solvent-Cement Joints: Clean and dry joining surfaces. Join pipe and fittings according to the following:

a. Comply with ASTM F402 for safe-handling practice of cleaners, primers, and solvent cements.

b. PVC Pressure Piping: Join schedule number ASTM D1785 PVC pipe and PVC socket fittings according to ASTM D2672. Join other-than-schedule-number PVC pipe and socket fittings according to ASTM D2855.

4. Slope pipe vent back to furnace or to outside terminal.

5. Vent and Combustion piping shall be sized according to manufacturer’s recommendations.

C. Connect refrigerant tubing kits to refrigerant coil in furnace and to air-cooled compressor-condenser unit.

1. Brazed Joints: Construct joints according to AWS's "Brazing Handbook," "Pipe and

Tube" Chapter, using copper-phosphorus brazing filler metal complying with

AWS A5.8/A5.8M.

D. Comply with manufacturer’s sizing requirements for installation and joint construction of refrigerant piping.

4.4 DUCTWORK CONNECTIONS

A. Connect ducts to furnace with flexible connector.

4.5 ELECTRICAL CONNECTIONS

A. Install electrical devices furnished by manufacturer, but not factory mounted, according to NFPA 70 and NECA 1.

B. Install nameplate for each electrical connection, indicating electrical equipment designation and circuit number feeding connection.

1. Nameplate shall be laminated acrylic or melamine plastic signs with a black background and engraved white letters at least 1/2 inch (13 mm) high.

4.6 CONTROL CONNECTIONS

A. Install control and electrical power wiring to field-mounted control devices.

4.7 STARTUP SERVICE

A. Complete installation and startup checks according to manufacturer's written instructions and perform the following:

1. Inspect for physical damage to unit casings.

2. Verify that access doors move freely and are weather tight.

3. Clean units and inspect for construction debris.

4. Verify that all bolts and screws are tight.

5. Adjust vibration isolation and flexible connections.

6. Verify that controls are connected and operational.

B. Start unit according to manufacturer's written instructions and complete manufacturer's operational checklist.

C. Measure and record airflows.

D. Verify proper operation of capacity control device.

E. After startup and performance test, lubricate bearings.

4.8 ADJUSTING

A. Adjust initial temperature and humidity set points.

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B. Set controls, burner, and other adjustments for optimum heating performance and efficiency.

Adjust heat-distribution features, including shutters, dampers, and relays, to provide optimum heating performance and system efficiency.

4.9 CLEANING

A. After completing installation, clean furnaces internally according to manufacturer's written instructions.

B. Install new filters in each furnace within 14 days after Substantial Completion.

4.10 FIELD QUALITY CONTROL

A. Perform the following tests and inspections:

1. Perform electrical test and visual and mechanical inspection.

2. Leak Test: After installation, charge systems with refrigerant and test for leaks. Repair leaks, replace lost refrigerant, and retest until no leaks exist.

3. Operational Test: After electrical circuitry has been energized, start units to confirm proper operation, product capability, and compliance with requirements.

4. Verify that fan wheel is rotating in the correct direction and is not vibrating or binding.

5. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

B. Verify that vibration isolation and flexible connections properly dampen vibration transmission to structure.

4.11 DEMONSTRATION

A. Coordinate, schedule, and provide in-person training for NPS Park’s maintenance personnel to adjust, operate, and maintain condensing units.

END OF SECTION

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ACTION SUBMITTIALS

• Air Conditioner 1.5 Tonnage

• Gas Furnace

• Cased Coil

• Thermostat