Owner: Metropolitan Park District of Tacoma

Transcription

1 Metropolitan Park District of Tacoma STAR Center HVAC Improvements SWR Bid# J In TACOMA, WASHINGTON CONTRACT DOCUMENTS Owner: Metropolitan Park District of Tacoma Planning, Design and Development 4702 South 19th Street Tacoma WA Project Manager: Jeremy Woolley (253) Consultants: Parametrix, Inc th Ave SE, Suite 100 Puyallup, WA Contact: Michael Lubovich (253) BIDS DUE Wednesday, September 7, :00 AM Time of Completion 30 Calendar Days

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3 ITEM Metropolitan Park District of Tacoma STAR Center HVAC Improvements SWR BID J TABLE OF CONTENTS # OF PAGES Cover... 1 Table of Contents... 1 Informal Notice to Bidders... 1 Informal Instructions to Bidders... 2 Supplemental Conditions Request for Interpretation Form... 1 Design Clarification Form....1 Proposal Request Form....1 Field Authorization Form... 1 Change Order Form... 1 Informal Bidder s Proposal.1 Washington State Prevailing Wage Rates and Benefit Code Key Technical Specifications: Division 1 General Requirements Summary of Work... 5 Exhibit A - Basis of Design Report METRO PARKS PROJECT MANAGER: Jeremy Wolley (253) CONSULTANT CONTACT: Michael Lubovich (253)

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5 August 24, 2016 Re: SWR Bid J , STAR Center HVAC Improvements To: Small Works Roster: Mechanical / Electrical / HVAC REQUEST FOR BIDS METROPOLITAN PARK DISTRICT OF TACOMA Project: STAR Center HVAC Improvements SWR Bid J The Metropolitan Park District of Tacoma will receive bids for SWR Bid J , STAR Center HVAC Improvements project at the office of Planning & Development, Metropolitan Park District of Tacoma, 4702 S 19th Street, Tacoma WA until 10:00 AM, Wednesday, September 7, Bids submitted by (must have signature) will be accepted at tammym@tacomaparks.com. Bids received after the appointed time set for receipt will be considered non-responsive. All work completed for the Metropolitan Park District will be considered a public works project with prevailing wage documentation required. Contact: Jeremy Woolley (253) or jeremyw@tacomaparks.com Scope of Work Work under this contract consists of obtaining a Mechanical Permit through the City of Tacoma (over the counter), & purchasing and installing HVAC units per the Basis of Design. Installation will include the following: demo and repair of drywall, mud and tape, and paint; routing of electrical needed for new HVAC units; installation of the HVAC units; verification of all systems and connections; and finally, any training for operations and maintenance (O&M Manuals). Estimate: $70,000-$90,000 Site Visit: N/A Bids Due: September 7, 2016 at 10:00am Time of Completion: 30 Calendar Days from Notice to Proceed Liquidated Damages: $ per day Please visit our website to view or download specification and/or drawings for SWR Bid J at Small Works Roster > Metro Parks Tacoma Sincerely, Jeremy Woolley Project Manager

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7 INSTRUCTIONS TO BIDDERS STAR CENTER HVAC IMPROVEMENTS BID#J SUBMISSION OF BIDS Bids must be delivered no later than Wednesday, September 7, 2016 at 10:00 A.M. Informal bids will be received by the Metropolitan Park District of Tacoma and delivered to 4702 S 19 TH St Tacoma, WA For more information, contact Jeremy Woolley, Project Manager at (253) or to jeremyw@tacomaparks.com 2. BIDDING PROCEDURE AND FORMS Bidders shall submit their bids on the bid proposal and signature sheet form included in this invitation to bid. A Non-Collusion Affidavit is required. A bid bond is required with the bid proposal. Forms shall be filled in completely in ink or typewritten. The signature sheet must be signed by a responsible company official with their designated title. Bidders may submit additional product information with their bid as desired. 3. REJECTION OF BIDS & ACCEPTANCE OF BID The MPD shall have the right to reject any or all bids or any items of the bid and to reject a bid, which is in any way incomplete or irregular. Any or all bids may be rejected for good cause. It is the intent of the MPD to award one contract to the lowest responsible bidder, provided the bid does not exceed the funds available. The MPD shall have the right to waive any informality, irregularity, or technical defect in any bids or bids received and to accept the bid or bids which, in its judgment, is in its best interests. Contract will be awarded on the base bid. 4. AGREEMENT BETWEEN OWNER AND CONTRACTOR A Bidder whose proposal is accepted shall sign the written agreement between MPD and Contractor within forty-five (45) days from the date of mailing of a Notice from MPD to Bidder of acceptance of his proposal. 5. WARRANTY AND GUARANTEE Bidder warrants and guarantees to MPD that all work will be in accordance with the plans and specifications and will not be defective. If within one year after the date of delivery, any material is found to be defective, the Contractor shall promptly and without cost to MPD, correct such defect. 6. PUBLIC WORK & PREVAILING WAGE RATES Please be aware when submitting a bid that this project is classified as "public work" and is subject to Washington State Prevailing Wage Law. The law requires in part that the following conditions be met: All workers or laborers must be paid the prevailing wage rate for their job classification as determined by the Department of Labor & Industries. The prime contractor and each subcontractor must file a Statement of Intent to Pay Prevailing Wages with the Department of Labor & Industries, ESAC Division, in Olympia. Statements of intent are to be filed prior to beginning work. The prime contractor and each subcontractor must file a corresponding Affidavit of Prevailing Wages Paid with the Department of Labor & Industries at project completion.

8 Weekly certified payroll forms must be completed by prime contractor and each subcontractor and submitted to the Metropolitan Park District. Industrial Insurance: All Industrial Insurance premium payments must be current for prime contractor and each subcontractor working on the project. The Metropolitan Park District will check with the Department of Labor & Industries to verify current premium status. No progress payments will be made to the prime contractor until approved Statements of Intent to Pay Prevailing Wages have been received by the Metropolitan Park District. Final payment will not be made until approved Affidavits of Prevailing Wages Paid have been received along with determination that the prime contractor and each subcontractor is in a current premium status. Please note that it is the responsibility of the contractor to forward the statements and affidavits. Inquiries regarding prevailing wages or current prevailing wage rates should be directed to the Department of Labor & Industries, Trades & Licensing Division, (360) General questions about the Metropolitan Park District of Tacoma's bidding should be directed to Tammy Maines at (253) , and contract compliance requirements should be directed to Julie Wilfong at (253) Blank Statements of Intent to Pay Prevailing Wages and Affidavits of Prevailing Wages Paid can be obtained from either the Department of Labor & Industries or the Metropolitan Park District.

9 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITIAN PARK DISTRICT OF TACOMA PUBLIC WORKS PROJECTS (Paragraphs keyed to the General Conditions) Add the following new Sections to Supplement the General Conditions for Metropolitan Park District Public Works Projects: ARTICLE MINIMUM LEVELS OF APPRENTICESHIP PARTICIPATION: A. In accordance with Metro Parks Tacoma Policy No , Resolution No. RR51-10, Owner requires 15% apprenticeship participation for projects estimated to cost two hundred fifty thousand ($250,000) dollars or more. 1. More information on the Apprenticeship Training Program is available on the Metro Parks Tacoma web page at B. Apprentice participation, under this contract, may be counted towards the required percentage (%) only if the apprentices are from an apprenticeship program registered and approved by the Washington State Apprenticeship and Training Council (RCW and WAC ). C. Bidders may contact the Apprenticeship Training Program Coordinator by phone at (253) , and at juliew@tacomaparks.com, to obtain information on available apprenticeship programs. D. For each project that has apprentice requirements, the contractor shall submit an Apprentice Training Program Utilization Goal, on forms provided by the ATP Coordinator, at the preconstruction meeting. E. For each project that has apprentice requirements, the contractor shall submit an Apprentice Training Program Weekly Payroll Report with every request for progress payment. The Contractor shall submit consolidated and cumulative data collected by the Contractor and collected from all subcontractors by the Contractor. The data to be collected and submitted includes the following: 1. Contractor name 2. Bid number 3. Contract number 4. Project name 5. Reporting period Payroll Week Ending Date 6. Name and social security number of each apprentice 7. Total number of apprentices and labor hours worked by them, categorized by trade or craft 8. Total number of journeymen and labor hours worked by them, categorized by trade or craft 9. Cumulative combined total of apprentice and journeymen labor hours 10. Total percentage of apprentice hours worked F. No changes to the required percentage (%) of apprentice participation shall be allowed without written approval of the Owner. In any request for the change the Contractor shall clearly demonstrate a good faith effort to comply with the requirements for apprentice participation. G. Any substantive violation of the mandatory requirements of this part of the contract may be a material breach of the contract by the Contractor. The Owner may withhold payment pursuant to Part 6.05, Supplemental Conditions to the General Conditions 12/06/07 Page 1

10 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS stop the work for cause pursuant to Part 3.04, and terminate the contract for cause pursuant to Part ARTICLE CONTRACT ADMINISTRATION SUBMITTAL TIMELINE: The Owner s submittal requirements for contract documents shall be according to the following order and timeline: A. Insurance Certificate(s) must be submitted by Contractor and approved by Owner prior to circulating the contract for execution by Owner delegate(s). B. Payment and Performance Bond must be submitted by Contractor and approved by Owner prior to circulating the contract for execution by Owner delegate(s). C. Retained Percentage Form indicating the method the Contractor elects to have Owner hold retention shall be submitted by Contractor with the signed contract. Retention may be held using one of the following three methods. 1. Retention Bond 2. Invested Requires an Escrow Agreement 3. Non-invested Owner retains in a non-interest bearing account D. Apprenticeship Training Program Utilization Plan shall be submitted by Contractor at the preconstruction meeting and no later than Contractor s first application for payment. E. Letter of Intent shall be filed by Contractor with the Department of Labor & Industries by the preconstruction meeting and no later than Contractor s first application for payment. F. Notice to Proceed shall be issued by Owner after completion of the fully-executed contract. G. Change Order(s) shall be issued pursuant to Part 7 of the General Conditions in the format provided by Owner. H. Certificate of Substantial Completion (to include punch list) shall be issued in the format provided by Owner. J. Certificate of Final Completion (to include letter of no disputes) shall be issued in the format provided by Owner. K. Final Acceptance by Metro Parks Tacoma Board of Directors or delegated MPT representative(s) shall be scheduled by Owner upon completion of a fully-executed Certificate of Final Completion. L. State Department of Revenue certification that all taxes have been paid and that no tax liens exist must be received by Owner prior to release of retention. M. Release Memo shall be issued internally by Owner to establish Contractor s compliance with contract requirements and to authorize release of retention. N. 1 Year Warranty form shall be completed by Owner one year from the date of Substantial Completion identifying any required warranty work by Contractor. Supplemental Conditions to the General Conditions 12/06/07 Page 2

11 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS ARTICLE PROJECT ADMINISTRATION: Owner requirements for project administration shall be according to the following minimum guidelines A. COORDINATION 1. Coordination: Coordinate construction operations included in different Sections of the Specifications to ensure efficient and orderly installation of each part of the Work. Coordinate construction operations, included in different Sections that depend on each other for proper installation, connection, and operation. 2. Conservation: Coordinate construction activities to ensure that operations are carried out with consideration given to conservation of energy, water, and materials. Salvage materials and equipment involved in performance of, but not actually incorporated into, the Work. Refer to other Sections for disposition of salvaged materials that are designated as Owner's property. B. PROJECT MEETINGS 1. General: Schedule and conduct weekly meetings at Project site, unless otherwise indicated. a. Attendees: Inform participants and others involved, and individuals whose presence is required, of date and time of each meeting. Notify Owner and Architect of scheduled meeting dates and times b. Agenda: Architect to prepare the meeting agenda. Distribute the agenda to all invited attendees c. Minutes: Architect to record significant discussions and agreements achieved. Distribute the meeting minutes to everyone concerned, including Contractor and Architect, within three days of the meeting 2. Preconstruction Conference: Schedule a preconstruction conference before starting construction, at a time convenient to Owner, and Architect, but no later than 15 days after execution of the Agreement. Conduct the meeting to review responsibilities and personnel assignments. a. Attendees: Authorized representatives of Owner, Architect, and their consultants; Contractor and its superintendent; major subcontractors; suppliers; and other concerned parties shall attend the conference. All participants at the conference shall be familiar with Project and authorized to conclude matters relating to the Work b. Agenda: Discuss items of significance that could affect progress, including the following: 1) Tentative construction schedule and schedule of values 2) Project phasing 3) Critical work sequencing and long-lead items 4) Designation of key personnel and their duties 5) Procedures for processing field decisions and Change Orders 6) Procedures for RFIs and other submittals 7) Procedures for testing and inspecting 8) Procedures for processing Applications for Payment 9) Distribution of the Contract Documents 10) Submittal procedures 11) Preparation of Record Documents 12) Use of the premises and existing building 13) Work restrictions 14) Owner's occupancy requirements 15) Responsibility for temporary facilities and controls 16) Construction waste management and recycling 17) Parking availability 18) Office, work, and storage areas 19) Equipment deliveries and priorities 20) First aid 21) Security 22) Progress cleaning Supplemental Conditions to the General Conditions 12/06/07 Page 3

12 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS 23) Working hours c. Minutes: Architect will record and distribute meeting minutes d. Miscellaneous: For each project that has apprentice requirements, the contractor shall submit an Apprentice Training Program Utilization Goal, on forms provided by the ATP Coordinator, at the pre-construction meeting 3. Progress Meetings: Conduct progress meetings at weekly intervals. Coordinate dates of meetings with preparation of payment requests. a. Attendees: In addition to representatives of Owner and Architect, each contractor, subcontractor, supplier, and other entity concerned with current progress or involved in planning, coordination, or performance of future activities shall be represented at these meetings. All participants at the conference shall be familiar with Project and authorized to conclude matters relating to the Work b. Agenda: Review and correct or approve minutes of previous progress meeting. Review other items of significance that could affect progress. Include topics for discussion as appropriate to status of Project 1) Contractor's Construction Schedule: Review progress since the last meeting. Determine whether each activity is on time, ahead of schedule, or behind schedule, in relation to Contractor's Construction Schedule. Determine how construction behind schedule will be expedited; secure commitments from parties involved to do so. Discuss whether schedule revisions are required to ensure that current and subsequent activities will be completed within the Contract Time. Review schedule for next period 2) Review present and future needs of each entity present, including the following: Interface requirements Sequence of operations Status of submittals Deliveries Off-site fabrication Access Site utilization Temporary facilities and controls Work hours Hazards and risks Progress cleaning Quality and work standards Status of correction of deficient items Field observations RFIs Status of proposal requests Pending changes Status of Change Orders Pending claims and disputes Documentation of information for payment requests c. Reporting: Distribute minutes of the meeting to each party present and to parties who should have been present. Architect will record and distribute to Contractor the meeting minutes C. REQUESTS FOR INTERPRETATION (RFI) 1. Procedure: Immediately on discovery of the need for interpretation of the Contract Documents, and if not possible to request interpretation at Project meeting, prepare and submit an RFI in the form required by Owner and described below. a. RFIs shall originate with Contractor. RFIs submitted by entities other than Contractor will be returned with no response b. RFIs shall be directed to the Architect, with a copy to the Owner Supplemental Conditions to the General Conditions 12/06/07 Page 4

13 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS c. Coordinate and submit RFIs in a prompt manner so as to avoid delays in Contractor's work or work of subcontractors 2. Content of the RFI: Include a detailed, legible description of item needing interpretation and the following: a. Project name b. Date c. Name of Contractor d. Name of Architect e. RFI number, numbered sequentially f. Specification Section number and title and related paragraphs, as appropriate g. Drawing number and detail references, as appropriate h. Field dimensions and conditions, as appropriate i. Contractor's suggested solution(s). If Contractor's solution(s) impact the Contract Time or the Contract Sum, Contractor shall state impact in the RFI j. Contractor's signature k. Attachments: Include drawings, descriptions, measurements, photos, Product Data, Shop Drawings, and other information necessary to fully describe items needing interpretation l. Supplementary drawings prepared by Contractor shall include dimensions, thicknesses, structural grid references, and details of affected materials, assemblies, and attachments 3. Architect's Action: Architect will review each RFI, determine action required, and return it. Allow seven working days for Architect's response for each RFI. RFIs received after 1:00 p.m. will be considered as received the following working day. a. The following RFIs will be returned without action: 1) Requests for approval of submittals 2) Requests for approval of substitutions 3) Requests for coordination information already indicated in the Contract Documents 4) Requests for adjustments in the Contract Time or the Contract Sum 5_ Requests for interpretation of Architect's actions on submittals 6) Incomplete RFIs or RFIs with numerous errors b. Architect's action may include a request for additional information, in which case Architect's time for response will start again c. Architect's action on RFIs that may result in a change to the Contract Time or the Contract Sum may be eligible for Contractor to submit Change Proposal according to contract modification procedures 1) If Contractor believes the RFI response warrants change in the Contract Time or the Contract Sum, notify Architect in writing within 10 days of receipt of the RFI response d. On receipt of Architect's action, update the RFI log and immediately distribute the RFI response to affected parties. Review response and notify Architect within seven days if Contractor disagrees with response 4. RFI Log: Prepare, maintain, and submit a tabular log of RFIs organized by the RFI number. Submit log at the end of the project, include the following: a. Project name b. Name and address of Contractor c. Name and address of Architect d. RFI number including RFIs that were dropped and not submitted e. RFI description f. Date the RFI was submitted g. Date Architect's response was received h. Identification of related Minor Change in the Work, Construction Change Directive, and Proposal Request, as appropriate i. Identification of related Field Order, Work Change Directive, and Proposal Request, as appropriate Supplemental Conditions to the General Conditions 12/06/07 Page 5

14 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS D. DESIGN CLARIFICATION (DC) 1. Procedure: In response to a RFI, and in the case where a change in contract sum or contract time is not required, the Architect may issue a Design Clarification (DC), in the form required by Owner and described below, which will provide additional information interpreting the intent of the Contract Documents. a. DC s shall originate with Architect and shall be submitted in a prompt manner so as to avoid delays in Contractor's work or work of subcontractors. 2. Content of the DC: Include a detailed, legible description of item needing interpretation and the following: a. Project name b. Date c. Name of Contractor d. Name of Architect e. DC number, numbered sequentially f. Specification Section number and title and related paragraphs, as appropriate g. Drawing number and detail references, as appropriate h. Field dimensions and conditions, as appropriate i. Contractor's suggested solution(s). If Contractor's solution(s) impact the Contract Time or the Contract Sum, Contractor shall state impact in the DC j. Contractor's signature k. Attachments: Include drawings, descriptions, measurements, photos, Product Data, Shop Drawings, and other information necessary to fully describe items needing interpretation E. PROPOSAL REQUEST (PR) 1. Procedure: Immediately on discovery of the need for changes in the Contract Time and / or Contract Sum, the Architect shall prepare a Proposal Request (PR), in the form required by Owner and described below, and submit it to the Contractor. The Contractor shall promptly respond to the PR with a specific written proposal providing the required information on the PR form established by Owner and described below. a. PR s shall originate with Architect b. Contractor shall coordinate and answer PR s in a prompt manner so as to avoid delays in Contractor's work or work of subcontractors. The Contractor s response shall be to the Architect with a copy to the Owner c. The Owner shall respond to the Contractor s proposal in accordance with the time limits and other provisions described in the General Conditions 2. Content of the PR: Include a detailed, legible description of item needing interpretation and the following: a. Project name b. Date c. Name of Contractor d. Name of Architect e. PR number, numbered sequentially f. Specification Section number and title and related paragraphs, as appropriate g. Drawing number and detail references, as appropriate h. Field dimensions and conditions, as appropriate i. Architect s recommended solution, including any supporting sketches, product literature or specifications j. Contractor's suggested solution(s). If Contractor's solution(s) impact the Contract Time or the Contract Sum, Contractor shall state impact in the PR k. Contractor's signature l. Attachments: Include drawings, descriptions, measurements, photos, Product Data, Shop Drawings, and other information necessary to fully describe items needing interpretation Supplemental Conditions to the General Conditions 12/06/07 Page 6

15 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS F. FIELD AUTHORIZATION (FA) 1. Procedure: Immediately on discovery of the need for changed in the field to expedite work and avoid delays, and if not possible to request interpretation at Project meeting, the Architect may prepare and submit an FA in the form required by Owner and described below. a. FA s shall originate with Architect or Owner b. Receipt of an executed FA signed by the Architect and Owner shall authorize the Contractor to carry out additional work in a prompt manner so as to avoid delays in Contractor's work or work of subcontractors c. Changes in Contract Sum or Contract time shall be based on limitations documented on the FA and provisions of the General Conditions Part 7 2. Content of the FA: Include a detailed, legible description of item needing interpretation and the following: a. Project name b. Date c. Name of Contractor d. Name of Architect e. FA number, numbered sequentially f. Specification Section number and title and related paragraphs, as appropriate g. Drawing number and detail references, as appropriate h. Field dimensions and conditions, as appropriate i. Contractor's suggested solution(s). If Contractor's solution(s) impact the Contract Time or the Contract Sum, Contractor shall state impact in the FA j. Contractor's signature k. Attachments: Include drawings, descriptions, measurements, photos, Product Data, Shop Drawings, and other information necessary to fully describe items needing interpretation G. CHANGE ORDER (CO) 1. Procedure: Following the acceptance of a PR by the Architect, the Owner shall prepare and submit a CO in the form required by Owner and described below. a. CO s shall originate with the Owner, and shall reference PR s/contractor proposals which have been accepted by the Owner b. No payment shall be made for additional or changed work without a corresponding fully authorized CO c. The Contractor shall process and approve CO s in a prompt manner so as to avoid delays in contract payment, Contractor's work or work of subcontractors 2. Content of the CO: Include a detailed, legible description of item needing interpretation and the following: a. Project name b. Date c. Name of Contractor d. Name of Architect e. CO number, numbered sequentially f. Specification Section number and title and related paragraphs, as appropriate g. Drawing number and detail references, as appropriate h. Field dimensions and conditions, as appropriate i. Attachments: Include proposal requests, drawings, descriptions, measurements, photos, Product Data, Shop Drawings, and other information necessary to fully describe items needing interpretation H. SUBSTITUTIONS Supplemental Conditions to the General Conditions 12/06/07 Page 7

16 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS 1. Substitutions: Requests for changes in products, materials, equipment, and methods of cleaning and repair required by Contract Documents proposed by the Contractor after award of the Contract are considered requests for "substitutions." 2. Substitution Request Submittal: Requests for substitution will be considered only if received within 30 days after commencement of the work. Requests received more than 30 days after commencement of the work may be considered or rejected at the discretion of the Architect. a. Submit three (3) copies of each request for substitution for consideration. Submit requests in the form specified and in accordance with procedures required for Change Order proposals. b. Identify the product to be replaced in each request. Include related Specification Section and Drawing numbers. Provide complete documentation showing compliance with the requirements for substitutions and the specified form. Include the following information, as appropriate: 1) Product Data, including Drawings and descriptions of products and application procedures 2) Samples, where applicable or requested 3) A detailed comparison of significant qualities of the proposed substitution with those of the work specified. Significant qualities may include elements such as durability, performance, and visual effect 4) Coordination information, including a list of changes or modifications needed to other parts of the work and to cleaning and repair performed by the Owner and separate Contractors, which will become necessary to accommodate the proposed substitution 5) A statement indicating the substitution's effect on the Contractor's Schedule compared to the schedule without approval of the substitution. Indicate the effect of the proposed substitution on overall Contract Time 6) Cost information, including a proposal of the net change, if any in the Contract Sum 7) Certification by the Contractor that the substitution proposed is equal-to or better in every significant respect to that required by the Contract Documents, and that it will perform adequately in the application indicated. Include the Contractor's waiver of rights to additional payment or time, which may subsequently become necessary because of the failure of the substitution to perform adequately 3. Architect's Action: Within five (5) working days of receipt of the request for substitution, and the specified form and submittals, the Architect will notify the Contractor of acceptance or rejection of the proposed substitution. If a decision on the use of a proposed substitute cannot be made or obtained within the time allocated, use the product specified by name. 4. Contractor s Options: a. For Products Specified by Reference Standards and Performance Requirements: Select any product meeting or exceeding standards or performance requirements by any manufacturer b. For Products Specified by Names, but Indicating Option for Approval of Equivalent Product: Submit request for approval, as required for substitution, for any product not specifically named c. For Products Specified by Naming Only One (1) Product and Manufacturer: No option and no substitution will be allowed 5. Conditions: The Contractor's substitution request will be received and considered by the Architect when one or more of the following conditions are satisfied, as determined by the Architect; otherwise requests will be returned without action except to record noncompliance with these requirements. a. Extensive revisions to Contract Documents are not required b. Proposed changes are in keeping with the general intent of Contract Documents c. The request is timely, fully documented, and properly submitted d. The request is directly related to an "or equal" clause or similar language in the Contract Documents Supplemental Conditions to the General Conditions 12/06/07 Page 8

17 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS e. The specified product or method or method cannot be provided within the Contract Time. The request will not be considered if the product or method cannot be provided as a result of Contractor s failure to pursue the work promptly or coordinate activities properly f. The specified product or method cannot receive necessary approval by a governing authority, and the requested substitution can be approved g. A substantial advantage is offered the Owner, in terms of cost, time, energy conservation, or other considerations of merit, after deducting offsetting responsibilities the Owner may be required to bear. Additional responsibilities for the Owner may include additional compensation to the Architect for redesign and evaluation services, increased cost of other work by the Owner h. The specified product or method cannot be provided in a manner that is compatible with other materials, and where the Contractor certifies that the substitution will overcome the incompatibility i. The specified product or method cannot be coordinated with other materials, and where the Contractor certifies that the proposed substitution can be coordinated j. The specified product cannot provide a warranty required by the Contract Documents k. Where a proposed substitution involves more than one prime Contractor, each Contractor shall cooperate with the other Contractors involved to coordinate the work, provide uniformity and consistency, and to assure compatibility of products I. SUBSTANTIAL COMPLETION PROCEDURE: See General Conditions Section 6.07 for provisions on this subject 1. The Contractor shall give written notification they consider work, or a portion thereof, which the Owner agrees to accept separately, is Substantially Complete. 2. The Architect shall review the work to determine if it is ready to consider Substantially Complete. 3. Once the work is considered ready, Architect shall review the work and shall prepare a punch list any additional items requiring completion or corrections. 4. The Contractor shall prepare for submission to the Architect the following items: a. The marked-up ON-SITE RECORD DOCUMENTS for review by the Architect prior to transferring the information to the FINAL REPRODUCIBLE RECORD DOCUMENTS b. Updated names, addresses and telephone numbers of all subcontractors and material suppliers c. Preliminary copies of MAINTENANCE AND OPERATIONS MANUALS d. Bound Manual containing copies of all GUARANTEES, WARRANTIES, BONDS and MATERIAL CERTIFICATIONS e. Receipts from the Owner for all SPARE PARTS and MAINTENANCE MATERIALS required by the technical sections of the specifications f. All PERMITS "signed off by regulating agency": This requires that final inspections are complete and approval for occupancy has been granted 5. When the Architect, on the basis of on-site observations, determines that the work, or designated portion thereof, is SUBSTANTIALLY COMPLETE (ready for use by the Owner), a CERTIFICATE OF SUBSTANTIAL COMPLETION shall be prepared which shall establish the DATE OF SUBSTANTIAL COMPLETION, and shall state the responsibilities of the Owner and the Contractor for security, maintenance, heat, utilities, damages to the work, and insurance. 6. The CERTIFICATE OF SUBSTANTIAL COMPLETION shall be issued to the Contractor, and forwarded to the Architect and the Owner for their written acceptance of the responsibilities assigned to them in such Certificate. 7. Warranties or Guarantees required by the Contract Documents shall commence on the DATE OF SUBSTANTIAL COMPLETION of the work or designated portion thereof unless otherwise provided in the CERTIFICATE OF SUBSTANTIAL COMPLETION. Supplemental Conditions to the General Conditions 12/06/07 Page 9

18 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS 8. Upon issuance of the CERTIFICATE OF SUBSTANTIAL COMPLETION, the Contractor shall pursue the completion of all PUNCH LIST ITEMS expeditiously with adequate forces to bring the project to FINAL COMPLETION. J. FINAL COMPLETION PROCEDURE 1. WARRANTY: Written guarantees are in addition to previous required guarantees and shall be addressed to the Owner and submitted on the Contractor's own letterhead before final payment and acceptance of the project. The general format of the guarantee shall be as follows: Address to the Owner: (I), (We), (General Contractor), certify that the work located at (street address and/or location of site) has been performed in full accordance with the plans and specifications. Further that we guarantee this work to be free from defects in workmanship or material for a period of one (1) year from date of final acceptance, and that we will make good without delay, any defects without additional cost to the Owner. Yours very truly, (Contractor) Signed by (Authorized signature of the firm) 2. Submit FINAL RECORD DOCUMENTS. 3. Submit MAINTENANCE & OPERATION MANUALS 4. Submit written certification that the work is fully complete (100%) in strict accordance with Plans, Specifications, Addenda and Change Orders and the Substantial Completion Punch List. 5. Submit the APPLICATION FOR FINAL PAYMENT 6. Upon receipt of written notice that the work is ready for final observation and acceptance and upon receipt of an Application for Final Payment, the Architect will promptly make such observation and will notify Contractor of established time and date for final observation. 7. When the Architect finds the work acceptable under the Contract Documents and the Contract fully performed, he will promptly notify the Owner that it is acceptable to issue a CERTIFICATE OF FINAL COMPLETION and FINAL CERTIFICATE FOR PAYMENT stating that to the best of his knowledge, information and belief, and on the basis of his observations and inspections, the work has been completed in accordance with the terms and conditions of the Contract Documents and that the entire balance found to be due the Contractor, and noted in said final Certificate, is due and payable. The Architect's issuance of the Final Certificate for Payment will constitute a further representation that the conditions precedent to the Contractor's being entitled to Final Payment have been fulfilled. a. Should however the Architect find the work to be incomplete and not in accordance with the Contract Documents or that items of the punch list have not been completed or corrected, he shall prepare a second punch list 8. Prior to issuance of the remaining RETAINED PERCENTAGE, the Contractor shall complete the following: a. Affidavit of Wages Paid forms must be completed for primary and sub-contractors and approved by State Department of Labor and Industries. The Owner will verify status. b. Written Notice of Disputes Status: Submit a written notice of any outstanding disputes or claims between you and any of your subcontractors, including the amounts and other details thereof or submit a written notice stating that there are no outstanding disputes or claims between you and any of your subcontractors. Supplemental Conditions to the General Conditions 12/06/07 Page 10

19 SUPPLEMENTAL CONDITIONS TO THE GENERAL CONDITIONS FOR METROPOLITAN PARKS DISTRICT OF TACOMA PUBLIC WORKS PROJECTS c. Owner will schedule contract for Final Acceptance by Metro Parks Tacoma Board of Directors or delegated MPT representative. d. All State Industrial Insurance premium payments must be current for primary and subcontractors. The Owner will verify status. e. Certification by the State Department of Revenue that all taxes have been paid and that no tax liens exist. f. Application for Payment of Retained Percentage (a statement showing balance owed or an invoice for retention) 9. Upon Final Acceptance, retention will be released approximately 45 day after the Final Completion date provided that any liens received have been satisfied and the necessary releases from the Departments of Labor and Industries, Revenue and Employment Security have been received. Supplemental Conditions to the General Conditions 12/06/07 Page 11

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21 REQUEST FOR INTERPRETATION FORM 4702 S. 19 th St. Tacoma, WA (253) (253) (To be filled out by General Contractor) PROJECT NAME: GENERAL CONTRACTOR: ORIGINATOR: Date: Request No. INFORMATION REQUESTED: LOCATION IN CONTRACT DOCUMENTS (Plans & Specifications): CONTRACTOR INTERPRETATION OF DOCUMENTS: CONTRACTOR S PROPOSED CLARIFICATION OF DOCUMENTS: RESPONSE: Reviewed By: Date: NOTE: This is not a notice to proceed with work involving additional cost and/or time. Notification must be given in accordance with the contract documents, if any response causes any change to the contract documents.

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23 4702 S 19 th Street, Tacoma WA / Fax Project: DESIGN CLARIFICATION: No. Via: Pages: From: Date: Transmitted to: General Contractor Owner Other CLARIFICATION: Description: Reference: Instructions: Attachments: The Work shall be carried out in accordance with the above instructions in accordance with the Contract Documents without change in Contract Sum or Contract Time. Proceeding with the work in accordance with these instructions indicates acknowledgement that there will be no change in the Contact Sum or Contract Time. Issued by: Date: Approved By: Date: Metro Parks Tacoma Accepted By: Date: General Contractor

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25 4702 S 19 th Street, Tacoma WA / Fax Project: PROPOSAL REQUEST: No. Date: To: PROPOSED CONTRACT MODIFICATION: Please submit an itemized proposal for changes in the Contract Time and Contract Sum for the following proposed modifications to the Contract Documents (This document is not a Change Order, Field Authorization or direction to proceed with the work described herein): Reference: Attachments: PROPOSED CONTRACT ADJUSTMENTS: The proposed change to the Contract Sum or Guaranteed Maximum Price for all work described above is: Increase of $ (Washington State Sales Tax not included) or, The Contract Sum shall remain unchanged. The proposed change to the Contract Time for all work described above is: Increase of days or; The Contract Time will remain unchanged. The foregoing amount includes all direct and indirect costs for material, labor and supplies related to this change and to the effect of this change on the remainder of the Project. All other provisions of the Contract remain in full force and effect. The Contractor agrees to be bound by this proposal for ninety (90) days after this date. Submitted by: Date: General Contractor We have examined the foregoing proposal, negotiated with the Contractor where necessary, and find it to be reasonable. Approved By: Date: The Owner hereby accepts the foregoing proposal. This document when fully signed constitutes the conditions upon which a Change Order will be issued. Accepted By: Date: Metropolitan Park District of Tacoma

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27 4702 S 19 th Street, Tacoma WA / Fax Project: FIELD AUTHORIZATION: No. Date: To: CONTRACT MODIFICATION: In order to expedite the Work and avoid delays, the Contractor is hereby directed to make the following change(s) in this contract: Reference: Attachments: PROPOSED CONTRACT ADJUSTMENTS: The Contract Sum or Guaranteed Maximum Price will be adjusted on the following basis: Lump Sum Increase of $ Unit price of $ per As provided in Article 7 of the General Conditions As follows: The Contract Time will: Remain unchanged Increase by days or; Be adjusted as provided in Article 8 of the General Conditions When issued by the Architect and approved by the Owner, this document shall serve as authorization to proceed with the Work as described above. The Contractor shall proceed IMMEDIATELY. When the actual adjustments to the Contract Sum and/or Contract Time are agreed to by the Architect, Owner and Contractor, this Work shall be added to the Contract by Change Order. Issued by: Date: Approved By: Date: Metro Parks Tacoma Signature below indicates the Contractor s agreement to proceed immediately with the Work as described above and acceptance of the proposed method of adjustment in the Contract Sum and Contract Time. Accepted By: Date: General Contractor

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29 PLANNING, DESIGN & DEVELOPMENT 4702 South 19th Street, Tacoma, WA (253) / Fax (253) Date: A/E: Representative: Address: Project Manager: Contractor: Representative: Address: A/E Project No.: Contract Change Order No. 00 Project Name: Project Address: Description, Reason and/or Necessity of Proposed Change: Project / Bid No: Date of Contract Award: Contract No: Purchase Order: Increase/Decrease Contract Price Change: CONTRACT SUMMARY % Change from Orig. Cont. Amt: Total Change Orders YTD: $0.00 $0.00 $0.00 $0.00 Contractor Date $0.00 $0.00 $0.00 Engineer Date $0.00 $0.00 MPT Planning Design & Development Date #DIV/0! Director of Management & Budget Date Original Completion Date: 01/00/00 Contract Time Changed Previous: 0 Contract Time Change: 0 Executive Director Date New Contract Completion Date: 01/00/00 CONTRACT HISTORY Item Action Date Resolution Number CO Amt. Total Completion Date: No Change Original Contract Amount: Net - Previous Additions: Net - Previous Deductions: Previous Contract Amount: Current Change Order Amount: Current Contract Subtotal: Sales Tax 9.6%): Grand Total Contract Amount: Increase Decrease No Change Increase Decrease CHANGE ORDER APPROVAL Contract Amount Total Amount: Number of Days: 10. Copy: Contract Compliance Copy: Finance Copy: Contractor Notes $0.00 0

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31 BID PROPOSAL FOR STAR Center HVAC Improvements, SWR Bid J Bid Due: Thursday, September 8, 2016, by 10:00 AM. Scope of Work: Work under this contract consists of obtaining a Mechanical Permit through the City of Tacoma (over the counter), & purchasing and installing HVAC units per the Basis of Design. Installation will include the following: demo and repair of drywall, mud and tape, and paint; routing of electrical needed for new HVAC units; installation of the HVAC units; verification of all systems and connections; and finally, any training for operations and maintenance (O&M Manuals). Construction shall be completed within 30 calendar days from the written notice to proceed. If not completed by such date, the contractor shall be liable to the District for damages. The Owner and Contractor agree that in the event this project is not completed on time, the Owner's damages are difficult to calculate. As a result, the Owner and Contractor agree that if the project is not completed by the completion date, Liquidated Damages will be assessed in the amount of $200.00/day. The undersigned Bidder declares that he has read and fully understands the Notice Inviting Bids, General Conditions for Metropolitan Park District of Tacoma Public Works Projects, Small Works Master Agreement, Metro Parks Tacoma Master Contract for Work Awarded From Small Works Roster, and each and every other Contract Document referred to therein and agrees to all of the terms, conditions and provisions contained therein; that he has examined the site of the work and has made the investigations and formed the estimates as to all conditions and contingencies referred to in and required by the Contract Documents, and he proposes and agrees that if his bid as submitted in the Proposal be accepted, he will contract in the form provided to perform all of the work and in the manner required by the Contract Documents and to complete the same within the time stipulated; that he will accept in full payment therefore the prices named herein. Said prices are to include and cover the furnishing of all materials, the performing of all labor requisite or proper, supervision, overhead, profit, taxes (excluding State sales tax), and the providing of all necessary machinery, tools, appurtenances, equipment and other means required to fully complete this contract, except as otherwise specifically provided in the Specifications. Receipt of addenda numbered have been included in the Proposal. Lump Sum Bid: is hereby acknowledged and all costs of the work therefore $ (Written amount, not including WSST) $ Add Alternate #1: $ (Written amount, not including WSST) $ Bid Submitted By: Bidder s Name Title Signature Date Telephone Number Company Name Address City, State & Zip Code Address Fax Number

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33 Section Summary of Work STAR Center HVAC Improvements SWR Bid J SUMMARY OF WORK Part 1: General A. DESCRIPTION OF THE WORK Work under this contract consists of obtaining a Mechanical Permit through the City of Tacoma (over the counter), & purchasing and installing HVAC units per the Basis of Design. Installation will include, but is not limited to: demo and repair of drywall (mud, tape, and paint as needed for full repair); electrical work; routing of electrical needed for new HVAC units; installation of the HVAC units; verification of all systems and connections; and finally, any training for operations and maintenance (O&M Manuals). Base Bid 1. As described in the drawings provided. 2. Permits by contractor. 3. Approval process for all submittals. 4. Provide other miscellaneous work associated with the above improvements including labor, materials, services, and temporary facilities. 5. Clean up the site at the conclusion of the work. B. LABOR AND MATERIALS 1. Provide all labor, materials, equipment, tools, construction equipment and machinery, transportation and other facilities and services necessary for the proper execution and completion of the work. 2. Perform the work in conformance with the Contract Documents to the best recognized trade practices and standards. 3. All workmen must have sufficient knowledge, skill, and experience to perform the work assigned to them. 4. All work shall be accomplished neat, plumb, true to line, and securely installed to produce an acceptable finished assembly. 5. Unless otherwise noted or directed, install all work in accordance with manufacturer's recommendations or requirements for best results. Not one preparatory step or installation procedure may be omitted unless specifically modified or exempted by these documents. 6. Work shall be under direct and full-time supervision of the Contractor. Contractor shall supervise and direct the work using his best skill and attention, 010Summary of Work Page 1 of 4

34 Section Summary of Work STAR Center HVAC Improvements SWR Bid J and shall be solely responsible for all construction means, methods, techniques, schedules and procedures, and for coordination of all portions of the work. C. EXISTING UTILITIES AND FACILITIES It shall be the Contractor's responsibility to locate all existing utilities. Existing utilities are not shown on the drawings, and exact locations must be determined in the field. The Contractor shall repair or replace promptly any existing utilities damaged by this work at his own expense. 1. Electricity: The Contractor shall provide temporary electrical power if required for construction until final acceptance. 2. Water: Reasonable amounts of water for construction purposes will be provided by the Owner. The Contractor shall provide all temporary lines and connections to mains required. Maintain all lines free from leaks. Provide all water required for tests. Provide drinking water from a proven safe source for all those connected with the work. Return the Owner s water lines to pre-construction condition or better to the satisfaction of the Project Manager. D. CONTRACTOR SCHEDULE The Contractor will provide the Owner with a schedule of work under this contract and will agree to specific dates and times for execution of the work to minimize disruption of schedule. The following schedule constraints will apply: 1. The time of execution for the contract is described in the Bid Proposal. 2. The contractor shall propose a schedule of activities and present it to the Project Manager in written form prior to Notice-to-Proceed with the work. 3. Contractor to provide a Schedule of Values broken out by each area of work. 4. The contractor will work with the Project Manager and Metro Parks staff to make appropriate adjustments to the schedule to accommodate public use of the areas of effect within STAR Center. E. PARTIAL OWNER OCCUPANCY All parks are a public facility and, this facility will be occupied during the time of construction. The Owner reserves the right-to occupy and use the premises unless otherwise agreed. F. CONSTRUCTION SITE ACCESS AND SAFETY 1. The Owner will provide the Contractor with legal access to the site, which the Contractor shall maintain in good condition. The Contractor shall keep the site orderly, and shall coordinate in advance his use of storage and work space with others. 010Summary of Work Page 2 of 4

35 Section Summary of Work STAR Center HVAC Improvements SWR Bid J The Contractor shall provide and maintain a telephone within a reasonable distance of the work, where he or his representative may be reached at any time while work is in progress. 3. The Contractor shall be solely and completely responsible for conditions of the job site, including safety of all persons and property affected directly or indirectly by his operations during the performance of the work. This requirement will apply continuously 24 hours per day until acceptance of the work by the Owner, and shall not be limited to normal working hours. The duty of the Owner to conduct construction review of the Contractor's performance is not intended to include review of the adequacy of the Contractor's safety measures in, on, or near the construction site. G. SITE SIGNS 1. The Contractor shall not install any temporary advertising or other construction signs at the project site during the execution of the work. H. SAFEGUARDS AND TRAFFIC CONTROL 1. The Contractor shall provide and maintain all necessary safeguards, such as watchmen, warning signs, barricades, and night lights at his own expense. Special care shall be exercised to prevent vehicles and pedestrians from falling into open trenches or being otherwise harmed as a result of the work. The Contractor shall, in all cases, hold the Owner harmless for any and all damages resulting from any of his operations. 2. Any emergency safeguard or action which must be undertaken by the Owner for safety of the public shall be regarded as a legitimate charge against the Contractor. 3. The Contractor shall be responsible for maintenance, control, and the safeguarding of the public and other traffic within and immediately abutting the project. I. DUST CONTROL The Contractor shall be responsible for controlling dust within the project limits. Any damage caused by dust shall be the sole responsibility of the Contractor. J. SUBMITTAL PROCEDURES/ SHOP DRAWINGS 1. Submittal form to identify Project, Contractor, subcontractor or supplier; and pertinent Contract Document references. 2. Apply Contractor's stamp, signed or initialed, certifying that review, verification of Products required, field dimensions, adjacent construction Work, and coordination of information is in accordance with requirements of the Work and Contract Documents. 3. Identify variations from Contract Documents and Product or system limitations which may be detrimental to successful performance of completed Work. 010Summary of Work Page 3 of 4

36 Section Summary of Work STAR Center HVAC Improvements SWR Bid J Revise and resubmit submittals as required; identify changes made since previous submittal. 5. Electronic Submittal Preparation: Submittals shall be provided in PDF format (except for samples). Organization shall be as follows: a. Include the following information: i. Project Name ii. Name and address of Owner's Representative iii. Name and address of Contractor iv. Name and address of Subcontractor b. Number each item in the sequentially. Provide the sequential item number, equipment tag number (if applicable), and the item description. For example: Folder Name: Pumps, HVAC 1 st Submittal Item, a PDF with the filename: 1 PP-1 Base-Mounted Pump 2 nd Submittal Item, a PDF with the filename: 2 PP-2 Close-Coupled Pump c. Indicate on the PDF which model of equipment is being offered for consideration. Use an arrow pointing to the time, similar to that seen on paper copies. Submittals without this indication shall be disapproved without review. One economical package for this is Nitro PDF Professional ; however, Adobe or any other similar software may be employed. d. Provide a spreadsheet that has the following items: i. Specification Section ii. Tag Number iii. Item Description iv. Supplier Name End of Section 010Summary of Work Page 4 of 4

37 Parametrix ENGINEERING. PLANNING. ENVIRONMENTAL SCIENCES TH AVENUE SE, SUITE 100 I PUYALLUP, WA I P TECHNICAL MEMORANDUM DATE: July 28, 2016 TO: Jeremy Woolley FROM: Michael James Lubovich, P.E. SUBJECT: Pre-Design Report CC: PROJECT NUMBER: PROJECT NAME: STAR Center HVAC Improvements INTRODUCTION Background The Metro Parks Tacoma {MPT) STAR Center facility is located at th Street, Tacoma, Washington. The facility was constructed in 2012, and serves as a community center for the greater Tacoma area. Several of the areas within the facility were designed and constructed with no source of mechanical cooling. These areas include the Tot Trek Area, the Zip and Zoom Rooms, and the Administrative Area. In the summer months, these areas experience temperatures in excess of 90 degrees F, making occupancy uncomfortable. Objectives The primary project objective of this Pre-Design Report is to provide recommendations for air conditioning improvements to the STAR Center facilities Tot Trek Area, Zip and Zoom Rooms, and Administrative Area. MPT shall use these recommendations to solicit contractor bids for construction this summer. Existing Conditions A site visit was conducted June 22, 2016, to evaluate the existing electrical and ventilation systems and assess the feasibility of recommended air conditioning improvements. A description of the existing areas follows. Tot Trek Area The Tot Trek Area is located in the northwest corner of the facility. This space has two full exterior walls (west and north) and a partial exterior wall (east). Floor-to-ceiling windows make up nearly half of the west wall, with half-height windows along the north wall and remainder of the west wall. The room has one roof-mounted exhaust fan to ventilate the space. Make-up air is provided through the openable windows in the room and through the cracks around the entry door. The exhaust fan is controlled via a timer installed near the entrance of the room. However, there also appears to be an interlock, as the fan does not run for the entire duration of the timer. There is no existing electrical power source available in the space for new mechanical cooling.

38 TECHNICAL MEMORANDUM (CONTINUED) Zip and Zoom Rooms The Zip and Zoom Rooms are connected spaces located on the east side of the facility with an openable garage door provided to separate the rooms for individual events. The Zip Room is an interior space, but is affected by solar heat gain by radiation through the tall windows in the Zoom Room. The east and south walls of the Zoom Room are exterior walls with several floor to ceiling windows along both walls. A roof mounted exhaust fan sits over the Zip Room and provides mechanical ventilation to the space. Make up air is provided via a passive ventilator installed over the Zoom Room. A pass through grille is installed above the intermediate garage door to allow air to pass between the spaces when the garage door is closed. There is no existing electrical power source available in the space for new mechanical cooling. Administrative Area The Administrative Area consists of three individual office spaces, a shared office area, and a break room. Each of the offices has an exterior west wall with openable windows. The shared office area has an exterior south and west wall with openable windows along both exterior walls. The break room is an interior space with no windows. The entire Administrative Area has one roof mounted exhaust fan located above the break room. Make up air is provided through passive vents installed in each space within the Administrative Area. Since the initial construction of the facility, ceiling fans have been installed in the shared office area to encourage air circulation within the space. The passive vent in the shared space has also been replaced with another roof mounted exhaust fan. The new roof mounted fan is a temporary installation connected via extension cord to an electrical outlet located on the roof. Panel L1A2 is located in the Administrative Area and has the electrical capacity to supply power for new mechanical cooling. HEAT ANALYSIS Analysis Inputs Tacoma Design Conditions Outdoor temperatures used in the analysis were taken from the design conditions published in the ASHRAE Fundamentals Handbook. Due to the uncertainty of the installed assemblies and corresponding physical and performance properties making up the building envelope, the selected temperature corresponds to the conservative 0.4 percentile design temperature for Tacoma, Washington, which is listed as 86.2 degrees F. Target Indoor Temperature For each space, a maximum target indoor temperature of 75 degrees F was selected for summer cooling comfort. A lower target temperature may be selected, but will require additional cooling capacity to achieve. The temperature of 75 degrees F is a typical target for summer cooling, whereas 72 degrees F is a typical target for winter heating. Analysis Results This analysis takes into consideration convection of heat from the ambient air through the envelope of the building, solar heat gain through walls and windows, and internal load (heat from people and equipment). As a conservative approach to the analysis, convection was estimated during times when peak daily temperatures are reached (between 4 p.m. and 5 p.m.). Solar loads were evaluated depending on the proximity and orientation of Metro Parks Tacoma Pre Design Report 2 July 28, 2016

39 TECHNICAL MEMORANDUM (CONTINUED) the exterior walls within the facility (for example, west facing walls experience peak solar loads during the evening). Internally generated cooling loads were estimated during anticipated peak activity times. The sum of these peak loads make up the total cooling loads identified below. Tot Trek Area Results from the analysis indicate that a maximum cooling load for the Tot Trek Area is approximately 35,800 British thermal units (BTU) per hour, or 2.98 tons of cooling. Zip and Zoom Rooms The Zip and Zoom Rooms were evaluated together as one room. Because the Zip Room is an internal room with no exterior walls, the majority of the loads will be generated within the Zoom Room. Cooling this space will make the envelope of the Zip Room thermally neutral. Internal loads within the Zip Room may be induced on the room when the intermediate garage door is closed. However, cool air from the Zoom Room exhausts through the roof ventilator in the ceiling above the Zip Room, forcing cool air to pass through the Zip Room and providing cooling to the space. Results from the analysis indicate that a maximum cooling load for these rooms is approximately 28,800 BTU per hour, or 2.40 tons of cooling. Administrative Area The Administrative Area was evaluated both as one open space and as two separate spaces (one space consists of one communal staff area and break room, and the other space consists of one larger office space representing the three smaller offices). Both analyses resulted in a peak demand of approximately 48,000 BTU per hour, or 4.00 tons of cooling required for the total Administrative Area. Approximately 32,400 BTU per hour, or 2.70 tons, of cooling is required for the communal staff area; and approximately 15,400 BTU per hour, or 1.28 tons, of cooling is required for the office spaces. COOLING AIR IMPROVEMENTS In order to achieve the primary objectives of these improvements, it is recommended that each space receive some form of mechanical cooling. This can be accomplished by installing ductless split systems in the spaces evaluated in this technical memorandum. Because the cooling load on these rooms is heavily influenced by extreme conditions during peak times, it is necessary to incorporate a cooling system that provides maximum flexibility in terms of cooling output. For that reason, it is recommended that all equipment feature inverter rated compressors, or a variable refrigerant flow system, to provide a range of cooling output. Ductless Split System A ductless split system consists of a condensing unit installed outdoors with supply and return refrigerant lines running to/from an indoor mounted evaporator. The indoor unit is typically installed 7 to 9 feet above the finished floor and includes a circulation fan that blows indoor air across the evaporator coil to cool the air before returning it to the space. Energy efficient units are available with inverter duty rated compressor motors to provide variable cooling capacity to match demand and prevent cycling. Metro Parks Tacoma Pre Design Report 3 July 28, 2016

40 TECHNICAL MEMORANDUM (CONTINUED) RECOMMENDATIONS Tot Trek Area To provide adequate cooling in the Tot Trek room, it is recommended that MPT installs a ductless split system with a cooling capacity of 3.00 tons. Depending on the make and model selected for the improvement, one or two indoor units may be required (limited by the capacity of a single indoor unit). Acceptable Manufacturer and Product The outdoor unit should be a Mitsubishi MUY D36NA 1 or equal. Refer to Figure 1 in Attachment A for an illustration of proposed improvements on the roof. The outdoor unit should be installed on the roof over the Administrative Area. The indoor unit should be a Mitsubishi MSY D36NA 8 or equal. The indoor unit(s) should be installed on the south wall approximately 8 feet above the finished floor. Refer to Figure 2 in Attachment A for the proposed layout of the improvements in this room. Zip and Zoom Rooms To provide adequate cooling in the Zip and Zoom Rooms, it is recommended that MPT install a ductless split system with a cooling capacity of 2.50 tons. Acceptable Manufacturer and Product The outdoor unit should be a Mitsubishi MUY D30NA 1 or equal. The outdoor unit should be installed on the roof over the Zoom Room. Refer to Figure 1 in Attachment A for an illustration of proposed improvements on the roof. The indoor unit should be Mitsubishi MSY D30NA 8 or equal. The indoor unit should be installed on the east wall approximately 8 feet above the finished floor. Refer to Figure 3 in Attachment A for the proposed layout of the improvements in this room. Administrative Area To provide adequate cooling in the Administrative Area, two independent systems are recommended. For the communal staff area, it is recommended that MPT install a single zone 3.0 ton cooling system. For the office spaces, it is recommended that MPT install a multi zone 1.5 ton cooling system with three individual 0.5 ton indoor units (one for each office space). Acceptable Manufacturer and Product Staff Area The outdoor unit should be a Mitsubishi MUY D36NA 1 or equal. The outdoor unit should be installed on the roof over the Administrative Area. Refer to Figure 1 in Attachment A for an illustration of the proposed improvements on the roof. The indoor unit should be Mitsubishi MSY D36NA 8 or equal. The indoor unit should be installed on the west wall of each room approximately 8 feet above the finished floor. Refer to Figure 4 in Attachment A for the proposed layout of the improvements in this room. Metro Parks Tacoma Pre Design Report 4 July 28, 2016

41 TECHNICAL MEMORANDUM (CONTINUED) Offices The outdoor unit should be a Mitsubishi MXZ 3C24NA2 or equal. The outdoor unit should be installed on the roof over the Administrative Area. Refer to Figure 1 in Attachment A for an illustration of proposed improvements on the roof. The indoor unit should be Mitsubishi MSZ GE06NA U1 or equal. The indoor unit should be installed on the west wall of each room approximately 8 feet above the finished floor. Refer to Figure 4 in Attachment A for the proposed layout of the improvements in this room. Electrical The proposed new mechanical cooling has a total calculated load of 74 A. Panel L1A2 has electrical capacity to supply this load (see Table 1). Panel L1A1, feeding Panel L1A2, does not provide enough electrical capacity. MPT staff are in the process of recording actual maximum load for Panel L1A1 per NEC Article These actual demand measurements can be used to provide existing load to calculate available capacity. If recorded results calculated at 125 percent plus the new loads do not exceed the rated capacity for Panel L1A1, Panel L1A2 in the Administrative Area can be used to feed the new loads. Table 1. Existing Panel Information Panel Name Rating Field Listed NEC Calculated Load Notes H1 277/480 V, 3 PH, 4 W, 800 A 737 A Located in Mechanical Space L1A1 120/208 V, 3 PH, 4 W, 400 A 334 A Located in Mechanical Space L1A2 120/208 V, 3 PH, 4 W, 225 A 98 A Located in Administrative Work Space To provide physical space for the new circuit breakers in Panel L1A2, a second section or sub panel will be required. This sub panel should be a 125 A, 120/208 V, three phase, main lug only panel, and can be located in the same hallway or possibly in the nearby Administration Work Room. The sub panel would be directly fed from Panel L1A2 with a 125 A, three pole circuit breaker. The electrician will need to verify required loads based on actual cooling equipment installed. If the meter recording does not verify that Panel L1A1 has sufficient electrical capacity to add the new cooling equipment, a new transformer and panel will need to be installed. The transformer should be a 480 V primary to 120/208 V secondary, three phase transformer. It will be fed directly from Panel H1, located in the mechanical space at the south end of the building. The circuit breaker in Panel H1 feeding the transformer should be 125 A. The new panel should be 125 A, 120/208 V, three phase, with a 125 A main breaker. Raceways will need to be installed to the equipment at the north end of the building. The most cost effective means would be to run the raceways across the roof, with raceways mounted to roof blocks on the surface. If this method is chosen, galvanized rigid conduit should be used for physical and corrosion protection. Raceways will be required to connect the new panel to the rooftop cooling units. The outdoor units supply power to the indoor units. Raceways will be required between the outdoor units and indoor units. If condensate pumps are required at the indoor units, electrical power can be derived from the nearest general use receptacle. The circuit can be extended within the space and a new receptacle installed for the pump. This work shall be concealed in the finished wall. Metro Parks Tacoma Pre Design Report 5 July 28, 2016

42 TECHNICAL MEMORANDUM (CONTINUED) COST OPINION The Engineer s Opinion of Probable Construction Cost (EOPCC) for the recommended improvements totals $126,600 (pre tax) and is summarized in Attachment C. The EOPCC includes mobilization/demobilization, furnishing and installation of the proposed HVAC equipment (outdoor and indoor), the addition of a sub panel and other supporting electrical infrastructure, drywall and other minor demolition, and interior repairs and finishes following installation on finished surfaces. The EOPCC also includes an estimate of 20 percent for Contractor overhead and profit, as well as 30 percent for construction contingency. ATTACHMENTS Attachment A Recommended Equipment Layout Attachment B Product Specifications Attachment C Pre Design Cost Opinion Metro Parks Tacoma Pre Design Report 6 July 28, 2016

43 Attachment A Recommended Equipment Layout

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45 DATE: July 28, 2016 FILE: PSO FIGS Figure 1 Roof Plan STAR CENTER HVAC IMPROVEMENTS

46

47 DATE: July 28, 2016 FILE: PSO FIGS Figure 2 Tot Trek Area Plan STAR CENTER HVAC IMPROVEMENTS

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49 DATE: July 28, 2016 FILE: PSO FIGS Figure 3 Zip and Zoom Rooms Plan STAR CENTER HVAC IMPROVEMENTS

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51 DATE: July 28, 2016 FILE: PSO FIGS Figure 4 Administrative Area Plan STAR CENTER HVAC IMPROVEMENTS

52

53 Attachment B Product Specifications

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55 M-SERIES SUBMITTAL DATA: MSY-D30NA-8 & MUY-D30NA-1 30,000 BTU/H WALL-MOUNTED AIR-CONDITIONING SYSTEM Job Name: System Reference: Child Care Area Indoor Unit: MSY-D30NA-8 Wireless Remote Controller Outdoor Unit: MUY-D30NA-1 Date: SPECIFICATIONS Cooling* * Rating Conditions per AHRI Standard ELECTRICAL REQUIREMENTS GENERAL FEATURES ACCESSORIES Indoor Unit Outdoor Unit Controller Options Voltage OPERATING RANGE ** ** Indoor Unit DIMENSIONS UNIT INCHES / MM H Outdoor Unit DIMENSIONS H INCHES / MM

56 M-SERIES SUBMITTAL DATA: MSY-D36NA-8 & MUY-D36NA-1 36,000 BTU/H WALL-MOUNTED AIR-CONDITIONING SYSTEM Job Name: System Reference: Large office Indoor Unit: MSY-D36NA-8 Date: SPECIFICATIONS Cooling* * Rating Conditions per AHRI Standard Wireless Remote Controller Outdoor Unit: MUY-D36NA-1 ELECTRICAL REQUIREMENTS GENERAL FEATURES ACCESSORIES Indoor Unit Outdoor Unit Controller Options Voltage OPERATING RANGE ** ** Indoor Unit DIMENSIONS UNIT INCHES / MM H Outdoor Unit DIMENSIONS INCHES / MM H

57 M-SERIES SUBMITTAL DATA: MXZ-3C24NA2 MULTI-INDOOR INVERTER HEAT-PUMP SYSTEM Job Name: System Reference: Small Offices Date: Outdoor Unit: MXZ-3C24NA2 ACCESSORIES 3/8"" "" "" MXZ-3C24NA2 W W W A MCA A V V

58 M-SERIES SUBMITTAL DATA: MSZ-GL06NA-U1 6,000 BTU/H WALL-MOUNTED INDOOR UNIT FOR MXZ-C MULTI-ZONE HEAT-PUMP SYSTEMS Job Name: System Reference: Date: SPECIFICATIONS: Btu/h / W º Btu/h / W Indoor Unit: MSZ-GL06NA-U1 Wireless Remote Controller ACCESSORIES: Indoor Unit Controls F.L.A. W In.(mm) A CFM db(a) In.(mm) Lbs.(kg) In.(mm)