AM03.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT 1. CONTRACT ID CODE PAGE OF PAGES

1 3

2. AMENDMENT/MODIFICATION NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE 5. PROJECT NO. (If applicable)

W9127820R0012-0003 29 JUNE 2020 M017EU45

6. ISSUED BY CODE 7. ADMINISTERED BY(If other than item 6)

CODE

Corps of Engineers 109 St. Joseph St.

Mobile, AL 36602

8. NAME AND ADDRESS OF CONTRACTOR (No., street, county, State and ZIP code) 9A. AMENDMENT OF SOLICITATION

NO.

W9127820R0012

9B. DATED (SEE ITEM 11)

6 MAY 2020

10A. MODIFICATION OF

CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in item 14. The hour and date specified for receipt of Offers is extended, is not extended. Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods: (a) By completing items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted; or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGEMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (if required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS,

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO AUTHORITY OF FAR 43.103(b)

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible)

The subject solicitation for: FY20 AIRCRAFT MAINTENANCE FACILITY

SOTO CANO AIR BASE, HONDURAS

Is modified in the following: REFER TO THE ENCLOSED REVISED SPECIFICATIONS FOR AMENDMENT NO. 0003

Except as provided herein, all terms and conditions of the document reference in item 9A or 10A, as Heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICE (Type or print)

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

BY

(Signature of contracting officer)

16C. DATE SIGNED

NSN 7540-01-152-8070 30-105 STANDARD FORM 30 (REV. 10-83)

PREVIOUS EDITION UNUSABLE Prescribed by GSA

FY20 AIRCRAFT MAINTENANCE FACILITY W9127820R0012

SOTO CANO AIR BASE, HONDURAS M017EU45

SF 30 Page 2 W9127820R0012-0003

PART I - REVISIONS MADE BY ADDED AND/OR REPLACEMENT PARAGRAPHS/PAGES/SECTIONS

The items listed below are to be replaced by the corresponding added and/or revised paragraphs/pages or sections. Added and/or revised paragraphs/pages or sections are indicated by a note in bottom right hand corner of each paragraph or page. Added sections are hereby made a part of the contract and are to be inserted in the specification in the proper numerical/alphabetical sequence.

Within the specifications, deletions from the specifications are indicated by strikethrough, e.g.: deletions are marked with strikethrough and additions to the specifications including revisions/substitutions are indicated in bold, italic and underlined, e.g.: additions are indicated thus.

Corresponding Added or Revised Paragraph SECTION Page, and/or Section

01 00 01 Revised Paragraph 7 as indicated herein.

01 33 29 Revised Paragraphs 1.4.1, 1.5, 1.6.6, and 1.6.11 as indicated herein. Deleted Paragraphs 1.5.1.2 and 3.1.1.

01 74 19 Revised Paragraphs 1.4, 1.6, 1.7, and 1.8.1 as indicated herein.

03 35 43.00 Revised Paragraphs 2.2.1 and 3.6 as indicated herein.

09 06 00 Revised Paragraph 2.2.4.3 as indicated herein.

21 13 25 Revised Paragraph 2.12 as indicated herein. Added

Paragraph 2.20.

21 30 00 Revised Paragraphs 2.4.1 and 2.4.2 as indicated herein.

23 00 00 Revised Paragraphs 2.9.1 and 3.6.1 as indicated herein.

23 07 00 Revised Paragraph 2.4.3 as indicated herein.

23 08 00.00 10 Deleted Paragraph 1.3.2.

23 09 13 Revised Paragraph 2.5.4 as indicated herein.

23 81 00.00 36 Revised Paragraphs 2.2, 2.2.2, 2.3, 2.3.1.4, 2.3.10, 2.5.3, 2.5.4, 2.5.5, and 2.5.6 as indicated herein.

Deleted Paragraphs 2.3.11, 2.5.5.1, 2.5.5.2, 2.5.5.3, and 2.5.5.4. Added Paragraph 2.5.7.

SF 30 Page 3 W9127820R0012-0003

PART II - NOTE: Revised and replacement drawings are listed below. These revised and replacement drawings are to be inserted into the folio in the proper numerical sequence. Drawings that have been revised or replaced by this amendment shall be deleted from the folio. All drawings listed below are revised unless indicated otherwise.

SHT

REF. TITLE OF DRAWINGS

COVER SHEET

CP105 PAVING PLAN

S-112 FIRST FLOOR SLAB PLAN AREA D

S-113 FIRST FLOOR SLAB PLAN AREA E0

S-114 FIRST FLOOR SLAB PLAN AREA F

S-118 LOW ROOF FRAMING PLAN COMPOSITE

S-122 INTERMEDIATE ROOF FRAMING PLAN COMPOSITE

S-302 SLAB AND FOUNDATION SECTIONS

S-304 SLAB AND FOUNDATION SECTIONS

S-305 SLAB AND FOUNDATION SECTIONS

S-312 GIRT FRAMING SECTIONS

S-401 ENLARGED PLANS

S-508 TYPICAL FRAMING DETAILS

S-518 TYPICAL BRACED FRAMING DETAILS

I-002 FURNITURE FIXTURES & EQUIPMENT LEGEND

I-122 FIRST FLOOR FFE PLAN

I-128 SECOND FLOOR BRIEFING ROOM FFE ENLARGED PLANS

I-601 FIRST FINISH SCHEDULE

I-602 SECOND FLOOR FINISH SCHEDULE

ES601 ELECTRICAL SITE RISER DIAGRAMS

ES602 TELECOMMUNICATION SITE RISER DIAGRAMS

EP401 ENLARGED POWER PLANS

EP503 400HZ/28VDC DETAILS

EP607 PANEL SCHEDULES

EP608 PANEL SCHEDULES

ET601 TELECOMMUNICATION RISER DIAGRAMS

FX701 FIRE PUMP LAYOUT

FX901 FIRE SUPPRESSION – 3D VIEW ROOM M101

FA171 FIRE ALARM PLAN FIRE PUMP BUILDING

FA603 FIRE ALARM RISER & MATRIX

M-111 MECHANICAL – HVAC 2ND FLOOR PART ‘C’ & ‘F’

M-117 MECHANICAL – ROOF PLAN PART ‘C & F’

M-501 MECHANICAL – HVAC DETAILS

M-502 MECHANICAL – HVAC DETAILS

M-503 MECHANICAL – HVAC DETAILS

M-602 MECHANICAL – HVAC SCHEDULES

M-702 HVAC CONTROLS – SPLIT AIR CONDITIONER SYSTEM

Encl as stated Replaced pages of the specifications as indicated in Part I.

37 Revised drawing as indicated in Part I.

01 00 01 Revised by Amendment No. W9127820R0012-0003

7. REQUESTS FOR INFORMATION

Any questions about this solicitation, including technical questions about plans and specifications, shall be submitted via the Bidder Inquiry Portal in ProjNet at https://www.projnet.org. To submit and review inquiry items, prospective vendors will need to use the Bidder Inquiry Key presented below and follow the instructions listed below the key for access. A prospective vendor who submits a comment /question will receive an acknowledgement of their comment/question via email, followed by an answer to the comment/question after it has been processed by our technical team. All timely questions and approved answers will be made available through ProjNet.

Questions shall be submitted no later than 15 July 14 August 2020 at 2:00 p.m. Central Time to allow time for a response, and amendment to the solicitation if necessary. On this date and time the portal will be closed.

For technical questions, no other means of communication, e‐mail, fax, or telephone will be accepted. Oral exchanges between Offerors or Bidders and the government prior to award of the contract will not be binding.

In addition to information available to Offerors or Bidders on the Bidder Inquiry Portal, any information concerning this solicitation will be furnished to all Offerors or Bidders as an amendment to the solicitation if the information is necessary to the submittal of offers or bids.

The Solicitation Number is: W9127820R0012 The Bidder Inquiry Key is: ZMF7Q5‐CS6BHJ

Specific Instructions for ProjNet Bid Inquiry Access:

a. From the ProjNet home page linked above, click on Quick Add on the upper right side of the screen.

b. Identify the Agency. This should be marked as USACE.

c. Key. Enter the Bidder Inquiry Key listed above.

d. Email. Enter the email address you would like to use for communication.

e. Click Continue. A page will then open saying that a user account was not found and will ask you to create one using the provided form.

f. Enter your First Name, Last Name, Company, City, State, Phone, Email, Secret Question, Secret Answer, and Time Zone. Make sure to remember your Secret Question and Answer as they will be used from this point on to access the ProjNet system.

g. Click Add User. Once this is completed you are now registered within ProjNet and are currently logged into the system.

Specific Instructions for Future ProjNet Bid Inquiry Access:

a. For future access to ProjNet, you will not be emailed any type of password. You will utilize your Secret

Question and Secret Answer to log in.

b. From the ProjNet home page linked above, click on Quick Add on the upper right side of the screen.

c. Identify the Agency. This should be marked as USACE.

d. Key. Enter the Bidder Inquiry Key listed above.

e. Email. Enter the email address you used to register previously in ProjNet.

f. Click Continue. A page will then open asking you to enter the answer to your Secret Question.

g. Enter your Secret Answer and click Login. Once this is completed you are now logged into the system.

Note: Questions/comments should be entered in the system one at a time. Lists of questions uploaded into ProjNet, regardless of the format, will not be answered.

Offerors are requested to review the solicitation and amendments in their entirety, as well as to review the Bidder Inquiry Portal for previous questions and responses, prior to submission of a new inquiry on the Portal.

CAUTION: ANY INQUIRY SUBMITTED AND ANSWERED WITHIN THIS SYSTEM, WILL BE ACCESSIBLE TO VIEW BY

ALL INTERESTED OFFERORS OR BIDDERS ON THIS SOLICITATION.

The call center for the ProjNet operates weekdays from 8 AM to 5 PM U.S. Central Time Zone. The telephone number is 1‐800‐428‐HELP.

(Note: The remainder of the section is unchanged by this amendment.)

01 33 29

1.4.1 NOT USED Sustainability Action Plan

Include the following information in the Sustainability Action Plan:

a. Contractor's planned method to achieve each construction related GP requirement.

b. For each designated construction related ISWG Guiding Principles

Requirements that is not achieved, provide narrative explaining how mission or activity precludes achieving specific sustainability requirement or goal. Provide analysis of particular requirement and level to which project is able to comply.

c. Name and contact information for: Contractor's POC responsible for ensuring sustainability goals are accomplished and documentation is assembled.

1.5 NOT USED SUSTAINABILITY SUBMITTALS

Provide HPSB Checklist and other documentation in the Sustainability Notebook to indicate compliance with the sustainability requirements of the project.

1.5.1.2 HPSB Checklist Public Access

Where not included as attachment to this specification section, use the following as HPSB Checklist for respective service branch. Where Internet address appears on two lines, copy full address into Internet browser.

a. Air Force - Air Force MILCON Sustainability Requirements Scoresheet, Attachment 3 of "AF Sustainable Design Development Implementing Guidance Memo” http://www.wbdg.org/ccb/browse_cat.php?c=265

b. Army - Energy & Sustainability Record Card http://wbdg.org/ccb/ARMYCOE/COEECB/ecb_2013_25.pdf

c. Navy - NAVFAC Sustainability & Energy Data Record Card/High Performance and Sustainable Building Checklist http://www.wbdg.org/pdfs/navfac_sustainable_energy_data_record_card.pdf

1.6.6 Indoor Air Quality During Construction

Prior to construction, create indoor air quality plan. Implement IAQ plan during construction and flush building air before occupancy.

a.Construction submittal documentation required:

(1) For new construction and for renovation of unoccupied existing buildings, comply with ASHRAE 189.1 Section 10.3.1.4. (Indoor Air Quality (IAQ) Construction Management), with maximum outdoor air consistent with achieving relative humidity no greater than 60 percent. For renovation of occupied existing buildings, comply with ANSI/SMACNA 008 IAQ Guidelines for Occupied Buildings Under Construction.

(2) Provide required documentation showing that after construction ends and prior to occupancy, new HVAC filters were installed, and building air was flushed out in accordance with UFC 1-200-02.

1.6.11 Ozone Depleting Substances

The use of CFC-based refrigerants in HVAC&R systems is prohibited. Eliminate the use of ozone depleting substances (CFC's, HCFCs, or Halons) during and after construction where alternative environmentally preferable products are available, taking into account lifecycle impacts. Meet the requirements of ASHRAE 189.1 Section 9.3.3 Refrigerants for no CFC-based refrigerants in heating ventilation, air conditioning and refrigeration systems (except for fire suppression system requirements, covered elsewhere in this specification).

Provide the following documentation:

a. MSDS sheets for all refrigerants provided

b. Products that meet the criteria of U.S. EPA Significant New Alternatives Policy, available at http://www.epa.gov/ozone/snap/index.html.

3.1.1 Coordinating Sustainability Documentation Progress

Provide sustainability focus and coordination at the following meetings to achieve sustainability goals. Contractor's designated TPC accredited sustainability professional responsible for GP documentation must participate in the following meetings to coordinate documentation completion.

a. Pre-Construction Conference: Discuss the following: HPSB Checklist, Sustainability Action Plan, Construction submittal requirements and schedule, individuals responsible for achieving each Guiding Principle Requirement.

b. Construction Progress Meetings: Review GP sustainability requirements with project team including contractor and sub-contractor representatives. Demonstrate GP documentation is being collected and updated to the Sustainability Notebook.

(1) Facility Turnover Meetings: Review Sustainability Notebook for completeness and identify any outstanding issues relating to final documentation requirements.

(2) Final Sustainability Notebook Review

01 74 19

1.4 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submittals with an "S" are for inclusion in the Sustainability Notebook, in conformance to Section 01 33 29 SUSTAINABILITY REPORTING. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Waste Management Plan; G, RO; (LEED BD+C)

SD-11 Closeout Submittals

Records; (LEED BD+C)

1.6 WASTE MANAGEMENT PLAN

Submit a waste management plan within 15 days after notice to proceed and not less than 10 days before the preconstruction meeting. The plan demonstrates how to meet the the project waste diversion goal. Also, include the following in the plan:

a. Name of individuals on the Contractor's staff responsible for waste prevention and management.

b. Actions that will be taken to reduce solid waste generation, including coordination with subcontractors to ensure awareness and participation.

c. Description of the regular meetings to be held to address waste management.

d. Description of the specific approaches to be used in recycling/reuse of the various materials generated, including the areas on site and equipment to be used for processing, sorting, and temporary storage of wastes.

e. Characterization, including estimated types and quantities, of the waste to be generated.

f. Name of landfill and/or incinerator to be used and the estimated costs for use, assuming that there would be no salvage or recycling on the project.

g. Identification of local and regional reuse programs, including non-profit organizations such as schools, local housing agencies, and organizations that accept used materials such as materials exchange networks and Habitat for Humanity. Include the name, location, and phone number for each reuse facility to be used, and provide a copy of the permit or license for each facility.

h. List of specific waste materials that will be salvaged for resale, salvaged and reused on the current project, salvaged and stored for reuse on a future project, or recycled. Identify the recycling facilities by name, location, and phone number, including a copy of the permit or license for each facility.

i. Identification of materials that cannot be recycled/reused with an explanation or justification, to be approved by the Contracting Officer.

j. NOT USED Description of the means by which any waste materials identified in item (h) above will be protected from contamination.

k. NOT USED Description of the means of transportation of the recyclable materials (whether materials will be site-separated and self-hauled to designated centers, or whether mixed materials will be collected by a waste hauler and removed from the site).

l. Anticipated net cost savings determined by subtracting Contractor program management costs and the cost of disposal from the revenue generated by sale of the materials and the incineration and/or landfill cost avoidance.

Revise and resubmit Plan as required by the Contracting Officer. Approval of Contractor's Plan will not relieve the Contractor of responsibility for compliance with applicable environmental regulations or meeting project cumulative waste diversion requirement. Distribute copies of the Waste Management Plan to each subcontractor, the Quality Control Manager, and the Contracting Officer.

1.7 RECORDS

Maintain records to document the quantity of waste generated; the quantity of waste diverted through sale, reuse, or recycling; and the quantity of waste disposed by landfill or incineration. Keep records in accordance with the LEED GBDC Ref Guide and using the LEED BD+C Letter Template. Make the records available to the Contracting Officer during construction, and deliver to the Contracting Officer upon completion of the construction.

Include in the Sustainability Notebook a copy of the records.

Demolition accomplished by other parties on this project site count toward the project's total waste diversion cumulative score for LEED BD+C and for sustainability requirements. Information on the quantity and disposition of these materials will be provided by the Contracting Officer. Include this data in records, annotated to indicate that it was accomplished by another party.

1.8.1 Source Separated Method.

Separate waste products and materials that are recyclable from trash and sorted as described below into appropriately marked separate containers and then transported to the respective recycling facility for further processing. Deliver materials in accordance with recycling or reuse facility requirements (e.g., free of dirt, adhesives, solvents, petroleum contamination, and other substances deleterious to the recycling process).

Separate materials into the following category types as appropriate to the project waste and to the available recycling and reuse programs in the project area:

(NOTE: The remainder of the paragraph is unchanged by the amendment.)

03 35 43.00

03 35 43.00

2.2.1 GPC GPC-1

Exposure: Grade 2 (Salt and Pepper finish) Reflectivity: Class 2 (Medium Reflectivity, 800 grit) Color: Semi-transparent with light colored stain class "A" finish See 09 06 00 COLOR SCHEDULE for required accent colors.

Exposure: Level 2 (Medium sheen, satin appearance (Class B Salt and Pepper aggregate exposure) Reflectivity: Class 2 (Medium Reflectivity, Gloss Reading 50, 400 grit) Color: Semi-transparent with light colored stain class "A" finish See 09 06 00 COLOR SCHEDULE for required accent colors.

3.6 HONING AND POLISHING

Finish honing and polishing the floor to specified Class "A" finish. B finish.

09 06 00

09 06 00

2.2.4.3 Porcelain Tile:

(PT-1)American Olean / Pattern: Unglazed Colorbody Mosaics/ Color:

Willow Speckled A94 (1)/ Size: 1" x1"x 1/4" Thick

(PT-2) Marazzi / Pattern: Unglazed Colorbody Mosaics/ Color: MR02 Overland Beige Textured/ Size: 24"x 48” 3/8" Thick

(PT-3) Marazzi / Pattern: Unglazed Colorbody Mosaics/ Color: MR02 Overland Beige Textured/ Size: 12"x 24” 3/8" Thick

21 13 25

21 13 25

2.12 CONTROLS TO ACTIVATE DIVERTER VALVE - ARMY

Provide a Containment Tank Remote Capacity Monitoring and Diverter Valve Panel - Army. Provide monitoring panel with audible and visual (yellow strobe or beacon) alarms. Automatically activate audible and visual alarms when the capacity level exceeds 5%. Provide a silence switch for the audible alarm. Constantly illuminate visual alarms at the panel until the level condition is returned to normal. Automatically actuate the valve upon release of the fire suppression system in the hangar bay.

Provide indication of the diverter valve position at the monitoring panel through the use of limit switches. Provide indication of when the valve is fully open or closed. Provide the valve with remote manual reset capability through a “Valve Position Restore” button. Provide the panel with a visual alarm (yellow strobe or beacon) that automatically illuminates when the valve position is "off normal" or "closed", and remains illuminated until valve is restored to the full normal "open" position. Install the diverter valve motorized operator above grade or list it for a submersible environment. Provide an alarm to the FACU and Energy Management Control System when the diverter valve is in the off normal position.

The containment system monitoring panel and diverter valve panel may be combined. At a minimum, provide NEMA 250 Type 4 panel(s).

Rate any devices, conduits, or electrical enclosures installed below grade or within the containment tank for prolonged submersion, minimum NEMA 250 Type 6P.

2.20 Sump Pump

Empty tank in accordance with environmental regulations. Install the sump pump inside the tank and operate the pump manually. Discharge the fire suppression effluent from the sump pump in accordance with environmental regulations. Locate controls for the sump pump near the inspection port to the containment tank.

21 30 00

21 30 00

2.4.1 Pipe and Fittings

Provide outside-coated, cement mortar-lined, ductile-iron stainless steel pipe with welded joints(with a rated working pressure of 1034 kPa) conforming to NFPA 24 for piping under the building and less than 1.50 m outside of the building walls. Anchor the joints in accordance with NFPA 24; provide concrete thrust block at the elbow where the pipe turns up toward the floor, and restrain the pipe riser with steel rods from the elbow to the flange above the floor. Minimum pipe size shall be 150 mm. Minimum depth of cover shall be as required by NFPA 24, but no less than 1 m. Piping more than 1.50 m outside of the building walls shall be outside coated, AWWA C104/A21.4cement mortar-lined, AWWA C151/A21.51 ductile-iron pipe, and AWWA C110/A21.10 fittings conforming to NFPA 24.

2.4.2 Fittings and Gaskets

Fittings for piping under the building and less than 1.50 m outside of the building walls shall be stainless steel. All other fittings shall be ductile iron conforming to AWWA C110/A21.10. Gaskets shall be suitable in design and size for the pipe with which such gaskets are to be used. Gaskets for ductile iron pipe joints shall conform to AWWA C111/A21.11.

23 00 00

23 00 00

2.9.1 Metal Ductwork

Provide metal ductwork construction, including all fittings and components, that complies with SMACNA 1966, as supplemented and modified by this specification.

a. Provide radius type elbows with a centerline radius of 1.5 times the width or diameter of the duct where space permits. Otherwise, elbows having a minimum radius equal to the width or diameter of the duct or square elbows with factory fabricated turning vanes are allowed.

b. Provide ductwork that meets the requirements of Seal Class A. Provide ductwork in VAV systems upstream of the VAV boxes that meets the requirements of Seal Class A.

c. Provide sealants that conform to fire hazard classification specified in

Section 23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS and are suitable for the range of air distribution and ambient temperatures to which it is exposed. Do not use pressure sensitive tape as a sealant.

Provide duct sealant products that meet either emissions requirements of CDPH SECTION 01350 (limit requirements for either office or classroom spaces regardless of space type) or VOC content requirements of SCAQMD Rule 1168 (HVAC duct sealants are classified as "Other" within the SCAQMD Rule 1168 sealants table). Provide validation of indoor air quality for duct sealants.

d. Make spiral lock seam duct, and flat oval with duct sealant and lock with not less than 3 equally spaced drive screws or other approved methods indicated in SMACNA 1966. Apply the sealant to the exposed male part of the fitting collar so that the sealer is on the inside of the joint and fully protected by the metal of the duct fitting. Apply one brush coat of the sealant over the outside of the joint to at least 50 mm band width covering all screw heads and joint gap. Dents in the male portion of the slip fitting collar are not acceptable. Fabricate outdoor air intake ducts and plenums with watertight soldered or brazed joints and seams.

3.6.1. Sleeves

Fabricate sleeves, except as otherwise specified or indicated, from 20 gauge thick mill galvanized sheet metal. Where sleeves are installed in bearing walls or partitions, provide black steel pipe conforming with ASTM A53/A53M, Schedule 20. Sleeves may be field or factory fabricated.

23 07 00

23 07 00

2.4.3 NOT USED Acoustical Duct Lining

2.4.3.1 General

Shop applied acoustical lining shall be installed in the Z-Type transfer ducts only. No other ductwork shall be acoustically lined.

2.4.3.1.1 Duct Liner

Flexible Elastomeric Acoustical and Conformable Duct Liner Materials:

Flexible Elastomeric Thermal, Acoustical and Conformable Insulation Compliance with ASTM C534/C534M, Grade 1, Type II; and NFPA 90A or NFPA 90B as applicable.

23 08 00.00 10

23 08 00.00 10

1.3.2 Energy

Formal LEED NC certification is not required; however, the Contractor is required to provide documentation that meets the LEED NC Energy & Atmosphere (EA) Prerequisite 1, Fundamental Commissioning. For New Construction and Major Revisions provide, also, documentation that meets EA Credit 3; Enhanced Commissioning. Provide documentation for as many LEED credits as possible to support LEED Silver certification of the project.

23 09 13

23 09 13

2.5.4 NOT USED Carbon Dioxide (CO2) Sensors

Provide photometric type CO2 sensors with integral transducers and linear output. Carbon dioxide (CO2) sensors must measure CO2 concentrations between 0 to 2000 parts per million (ppm) using non-dispersive infrared (NDIR) technology with an accuracy of plus or minus 50 ppm and a maximum response time of 1 minute. The sensor must be rated for operation at ambient air temperatures within the range of 32 to 122 degrees F and relative humidity within the range of 20 to 95 percent (non-condensing). The sensor must have a maximum drift of 2 percent per year. The sensor chamber must be manufactured with a non-corrosive material that does not affect carbon dioxide sample concentration. Duct mounted sensors must be provided with a duct probe designed to protect the sensing element from dust accumulation and mechanical damage. The sensor must have a calibration interval no less than 5 years.

23 81 00.00 36

23 81 00.00 36

2.2 UNITARY EQUIPMENT, SPLIT SYSTEM - Air Handler (AHU)

Unit shall be an air-cooled, split system which employs a remote condensing unit, a separate indoor unit, and interconnecting refrigerant piping. Unit shall be the air-conditioning type conforming to applicable Underwriters Laboratories (UL) standards including UL 1995. Unit shall be rated in accordance with ANSI/AHRI 210/240. Unit shall be provided with necessary fans, air filters, coil frost protection, liquid receiver, internal dampers, mixing boxes, supplemental heat, and cabinet construction as specified in paragraph "Unitary Equipment Components". The remote unit shall be as specified in paragraph REMOTE CONDENSER OR CONDENSING UNIT. Evaporator or supply fans shall be double-width, double inlet, forward curved, backward inclined, or airfoil blade, centrifugal scroll type. Condenser or outdoor fans shall be the manufacturer's standard for the unit specified and may be either propeller or centrifugal scroll type. Fan and condenser motors shall have dripproof enclosures. In accordance with ENERGY STAR requirements, The unit shall have a minimum 15 SEER. See https://www.energystar.gov/sites/default/files/ENERGY%20STAR%20CAC- ASHP%20V5.0.pdf for Energy Star Requirements for central air conditioners.

2.2.2 Refrigeration Circuit

Refrigerant-containing components shall comply with ANSI/ASHRAE 15 & 34 and be factory tested, cleaned, dehydrated, charged, and sealed. Refrigerant charging valves and connections, and pumpdown valves shall be provided for each circuit. Filter-drier shall be provided in each liquid line and be reversible-flow type. Refrigerant flow control devices shall be an adjustable superheat thermostatic expansion valve with external equalizer matched to coil, capillary or thermostatic control, and a pilot solenoid controlled, leak-tight, four-way refrigerant flow reversing valve. A refrigerant suction line thermostatic control shall be provided to prevent freeze-up during heating cycle. Both supply & return refrigerant lines are required to be insulated.

2.3 REMOTE CONDENSER OR CONDENSING UNIT (CU)

Units with capacities less than 39.5 kW shall produce a maximum AHRI sound rating of 10 bels when rated in accordance with ANSI/AHRI 270. Each remote condenser coil shall be fitted with a manual isolation valve and an access valve on the coil side. Saturated refrigerant condensing temperature shall not exceed 49 degrees C at 40 degrees C ambient. Unit shall be provided with low ambient condenser controls to ensure proper operation in an ambient temperature of 0 degrees C. Fan and cabinet construction shall be provided as specified in paragraph "Unitary Equipment Components". Fan and condenser motors shall have dripproof enclosures.

2.3.1.4 Unit Controls – Unitary Equipment

The control system shall be complete with required accessories for regulating condenser pressure by fan cycling, solid-state variable fan speed, modulating condenser coil or fan dampers, flooding the condenser, or a combination of the above. Unit mounted control panels or enclosures shall be constructed in accordance with applicable requirements of NFPA 70 and housed in NEMA ICS 6, Class 1 or 3A enclosures. Controls shall include fan motor starters, time delay start-up, overload protective devices, interface with local and remote components, and intercomponent wiring to terminal block points.

2.3.10 Controls – Ductless Split System

The unit shall have a wireless hand held remote controller to perform input functions necessary to operate the system. The wireless hand held controller shall have a Power On/Off switch, Mode Selector - Auto, Cool, Dry Modes - Temperature Setting, Timer Control with Clock, Fan Speed Select and Vane / Airflow Direction selector. Controller shall have a programmable Smart Set button for pre-selected Temperature, Fan Speed, and Vane position settings.

The indoor unit shall perform Self-diagnostic Function and Check Mode switching. Temperature changes shall be by 1ºF increments with a range of 61 - 88ºF (16-31ºC). The microprocessor located in the indoor unit shall have the capability of sensing return air temperature and indoor coil temperature, receiving and processing commands from the wireless or a wired controller, providing emergency operation and controlling the outdoor unit. The system shall be capable of automatically restarting and operating at the previously selected conditions when the power is restored after power interruption.

Control system shall control the continued operation of the air sweep louvers, as well as provide On/Off, System/Mode function.

2.3.11 Warranty

The units shall have a manufacturer's parts and defects warranty for a period five (5) years from date of installation. The compressor shall have a warranty of seven (7) years from the same date of installation. If, during this period, any part should fail to function properly due to defects in workmanship or material, it shall be replaced or repaired at the discretion of the manufacturer. This warranty does not include labor.

2.5.3 Air Filters

Air filters shall be listed in accordance with requirements of UL 900, except high efficiency particulate air filters of 99.97 percent efficiency by the DOP Test Method shall be as listed under the label service and shall meet the requirements of UL 586. All air filters should be a minimum MERV 8 rating.

2.5.4 NOT USED Coil Frost Protection

Each circuit shall be provided with a coil frost protection system which is a manufacturer's standard. The coil frost protection system shall use a temperature sensor in the suction line of the compressor to shut the compressor off when coil frosting occurs. Timers shall be used to prevent the compressor from rapid cycling.

2.5.5 NOT USED Pressure Vessels

Pressure vessels shall conform to ASME BPVC SEC VIII D1 or UL 207, as applicable for maximum and minimum pressure or temperature encountered. Where referenced publications do not apply, pressure components shall be tested at 1-1/2 times design working pressure. Refrigerant wetted carbon steel surfaces shall be pickled or abrasive blasted free of mill scale, cleaned, dried, charged, and sealed.

2.5.5.1 Hot Gas Muffler

Unit shall be selected by the manufacturer for maximum noise attenuation. Units rated for 30 tons capacity and under may be field tunable type.

2.5.5.2 Liquid Receiver

A liquid receiver shall be provided when a system's condenser or compressor does not contain a refrigerant storage capacity of at least 20 percent in excess of a fully charged system. Receiver shall be designed, filled, and rated in accordance with the recommendations of ANSI/AHRI 495, except as modified herein. Receiver shall be fitted to include an inlet connection; an outlet drop pipe with oil seal and oil drain where necessary;

two bull's-eye liquid level sight glass in same vertical plane, 90 degrees apart and perpendicular to axis of receiver or external gauge glass with metal guard and automatic stop valves; external float switches; and purge, charge, equalizing, pressurizing, plugged drain and service valves on the inlet and outlet connections. Receiver shall be provided with a relief valve of capacity and setting in accordance with ANSI/ASHRAE 15 & 34.

2.5.5.3 Oil Separator

Separator shall be the high efficiency type and be provided with removable flanged head for ease in removing float assembly and removable screen cartridge assembly. Pressure drop through a separator shall not exceed 10 psi during the removal of hot gas entrained oil. Connections to compressor shall be as recommended by the compressor manufacturer. Separator shall be provided with an oil float valve assembly or needle valve and orifice assembly, drain line shutoff valve, sight glass, filter for removal of all particulate sized 10 microns and larger, and strainer.

2.5.5.4 Oil Reservoir

Reservoir capacity shall equal one charge of all connected compressors.

Reservoir shall be provided with an external liquid gauge glass, plugged drain, and isolation valves. Vent piping between the reservoir and the suction header shall be provided with a 5 psi pressure differential relief valve. Reservoir shall be provided with the manufacturer's standard filter on the oil return line to the oil level regulators.

2.5.6 Cabinet Construction

Casings for the specified unitary equipment shall be constructed of galvanized steel or aluminum sheet metal and galvanized or aluminum structural members.

Minimum thickness of single wall exterior surfaces shall be 18 gauge galvanized steel or 0.071 inch thick aluminum on units with a capacity above 20 tons and 20 gauge galvanized steel or 0.064 inch thick aluminum on units with a capacity less than 20 tons. Casing shall be fitted with lifting provisions, access panels or doors, fan vibration isolators, electrical control panel, corrosion-resistant components, structural support members, insulated condensate drip pan and drain, and internal insulation in the cold section of the casing. Where double-wall insulated construction is proposed, minimum exterior galvanized sheet metal thickness shall be 20 gauge.

Provisions to permit replacement of major unit components shall be incorporated. Penetrations of cabinet surfaces, including the floor, shall be sealed. Unit shall be fitted with a drain pan which extends under all areas where water may accumulate. Drain pan shall be fabricated from Type 300 stainless steel, galvanized steel with protective coating as required, or an approved plastic material. Pan insulation shall be water impervious. Extent and effectiveness of the insulation of unit air containment surfaces shall prevent, within limits of the specified insulation, heat transfer between the unit exterior and ambient air, heat transfer between the two conditioned air streams, and condensation on surfaces. Insulation shall conform to ASTM C 1071. Paint and finishes shall comply with the requirements specified in paragraph FACTORY COATING. A drain pan level switch designed to connect to the control board, shall be provided and installed on the condensate pan to prevent condensate from overflowing.

2.5.7 Warranty

Ductless Split Systems: The units shall have a manufacturer's parts and defects warranty for a period five (5) years from date of installation. The compressor shall have a warranty of seven (7) years from the same date of installation. If, during this period, any part should fail to function properly due to defects in workmanship or material, it shall be replaced or repaired at the discretion of the manufacturer. This warranty does not include labor.

Unitary Equipment: The units shall have a manufacturer's parts and defects warranty for a period one (1) year from date of installation. The compressor shall have a warranty of five (5) years from the same date of installation.

If, during this period, any part should fail to function properly due to defects in workmanship or material, it shall be replaced or repaired at the discretion of the manufacturer. This warranty does not include labor.