Statement_of_Work.pdf

Title:

Clean HVAC Ducts at 15 Missile Alert

Facilities Projects #: XXXXXXX

Prepared By

341st Civil Engineering Squadron Operations Engineering Flight

Maj Christopher Boney Project Manager

Stephanie Groux Chief Operations Engineer

Clean HVAC Ducts at 15 MAFs

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 11 00 SUMMARY OF WORK

01 33 00 SUBMITTAL PROCEDURES

01 42 00 SOURCES FOR REFERENCE PUBLICATIONS

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

23 01 30.41 HVAC SYSTEM CLEANING

-- End of Project Table of Contents --

PROJECT TABLE OF CONTENTS Page 1

SECTION TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 11 00

SUMMARY OF WORK

01/18

PART 1 GENERAL

1.1 SYNOPSIS

1.2 SUBMITTALS

1.3 WORK COVERED BY CONTRACT DOCUMENTS

1.3.1 Project Description

1.3.2 Location

1.3.3 General Requirements

1.4 OCCUPANCY OF PREMISES / ACCESS

1.4.1 Security Requirements

1.4.1.1 Entry Authorization List (EAL)

1.4.1.2 Site Entry

1.4.1.3 Vehicle Identification

1.4.2 Access to facility

1.5 EXISTING WORK

1.6 WORK SCHEDULE

PART 2 PRODUCTS

PART 3 EXECUTION

-- End of Section Table of Contents --

SECTION 01 11 00 Page 1

SECTION 01 11 00

SUMMARY OF WORK

01/18

PART 1 GENERAL

1.1 SYNOPSIS

The Contractor shall be responsible for furnishing all labor, materials, equipment and services necessary in cleaning the HVAC ducting at 15 Missile Alert Facilities (MAFs) located in Montana.

1.2 SUBMITTALS

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

submittals not having a "G" designation are for information only. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Work Schedule; G

1.3 WORK COVERED BY CONTRACT DOCUMENTS

1.3.1 Project Description

The work includes cleaning HVAC ducts at fifteen Missile Alert Facilities (MAFs) along with incidental related work. The MAF Facilities are secure sites and are to remain operational during the commencement of the work.

1.3.2 Location

The work shall be at the Missile Alert Facilities (MAF)s A-01 thru O-01, located near Malmstrom AFB as indicated. The exact location will be shown by the Contracting Officer.

SITE COUNTY STATE MILES FROM

Malmstrom AFB

A-01 CASCADE MT 28

B-01 JUDITH BASIN MT 51

C-01 JUDITH BASIN MT 63

D-01 FERGUS MT 98

E-01 FERGUS MT 137

F-01 TETON MT 65

G-01 LEWIS AND CLARK MT 51

H-01 TETON MT 43

SECTION 01 11 00 Page 2

SITE COUNTY STATE MILES FROM

Malmstrom AFB

I-01 CASCADE MT 49

J-01 TETON MT 37

K-01 WHEATLAND MT 124

L-01 FERGUS MT 105

M-01 FERGUS MT 92

N-01 FERGUS MT 123

O-01 FERGUS MT 139

1.3.3 General Requirements

The following are general requirements for this contract:

a. On a daily basis or more often as necessary, clean all work areas of debris as well as Contractor tools, equipment, and materials.

This includes the exterior/interior of adjacent buildings and parking lot/access road.

b. The Contractor is responsible for verification of all quantities, dimensions, and site conditions.

c. Any change in conditions or modifications with this project must be presented to the Contracting Officer (CO) prior to any change.

After the change is agreed on, a FIELD CHANGE REPORT will be completed by the CO and processed through the Contracting Office.

The FIELD CHANGE REPORT will reflect whether the change or modification will be a no cost Mod or a cost Mod. The FIELD CHANGE REPORT will also have all agreeing parties' signatures.

d. Prior to starting any work, all items listed on the attached Submittal Register (see section 01 33 00) shall be submitted on individual AF Form 3000. This includes Material Safety Data Sheets (MSDS) for all materials used on the project.

e. The Contractor will keep a copy of the most current Statement of Work and Drawings on jobsite.

f. Working hours will be between the hours of 7:30 a.m. (start processing on site) and 4:00 p.m. (terminated work off site) excluding Saturdays, Sundays, and Federal Holidays. An Air Force Inspector/Escort will be provided during these work hours.

h. Contractor shall submit a Material Safety Data Sheet (MSDS) for each compound or chemical intended to be utilized on the site to the Base Bioenvironmental Office (341 MDOS/SGOJ, 406-731-1580) for review and approval prior to delivery and use on the site. A hazardous material is defined in Federal Standard FED/STD-313C (Tables I and II). The definition of materials presenting a

SECTION 01 11 00 Page 3 health hazard or physical hazard is found in 29 CFR 1910.1200(c).

The MSDS shall be maintained on the site and all workers shall familiarize themselves with their contents. The Contractor shall be responsible for establishing a system which tracks the procurement, delivery to site, installation, and disposal of all hazardous materials including proper disposal documents. The Contractor shall submit a report prior to the commencement of construction on each delivery order (if necessary) to the 341 CES/CEIE representative (406-731-7794).

1.4 OCCUPANCY OF PREMISES / ACCESS

Buildings will be occupied during performance of work under this Contract.

Before work is started, the Contractor shall arrange with the Contracting Officer a sequence of procedure, means of access, space for storage of materials and equipment, and use of parking and driveway areas.

1.4.1 Security Requirements

1.4.1.1 Entry Authorization List (EAL)

Access to the Missile Alert Facilities (MAFs) is controlled by the U.S. Air Force. All contracted personnel entering the sites shall be on an Entry Authorization List (EAL) created by the Government. Contractor shall provide complete written, valid, and legible data that shall include legible photocopies or scanned electronic documents to be used to produce the initial EAL prior to their initial commencement of work at the site for this project. Twenty (20) working days are required to process, initially issue, add to, correct, and renew EALs. Any delays caused by submission of incorrect, outdated, and invalid information will be at no cost to the Government. The project manager shall provide to the Contracting Officer and the Contractor the expiration date for each EAL, when the date is made effective. Contractor submitted data shall include the following for each employee (to include prime, subcontractor and delivery/testing services employees):

a. Project NZAS number, contract number, name of project, and Contracting Officer.

b. Employers name and address (city and state).

c. One Form of ID as follows:

1) Legible photocopy or electronically scanned valid driver's license, state photo ID card, or official state/federal photo ID card with the individual's name.

2) Able to produce, for verification, the exact form of ID given for the EAL process.

d. Identification cards that expire during the construction period must be updated and photocopies or scanned copies must be sent to the Contracting Officer or his/her authorized representative 20 days prior to expiration or the person shall be dropped from the EAL. The Contractor is responsible for maintaining an accurate valid list.

e. All of the following for each vehicle: make, model, year, color, license plate number and state.

SECTION 01 11 00 Page 4

1.4.1.2 Site Entry

In order to gain entry onto the project facility, the Contractor personnel must be:

1.4.1.3

a. Listed on an effective EAL.

b. Identified by escort personnel.

c. Able to produce, for verification, the exact form of ID given for the EAL process.

d. Submit to physical and electronic search of person and materials.

e. Physically escorted on-site by an authorized escort official and remain under escort full-time while on site.

f. Upon arrival, the escort will identify all Contractor personnel and check identification. Processing onto and off the sites may require approximately thirty (30) minutes each and shall not be considered delay time.

Vehicle Identification

a. Company Identification (logo) must be clearly, legibly, and identifiable at a minimum of 30-foot distance and displayed on each side of all vehicles and equipment brought onto or operated on site. Vehicles and equipment without such identification may be denied access to the site.

b. The access road leading from the main road adjacent to the site is under military control. The area off to the sides of the access road is either private property, federal, state, or county property. Parking vehicles on the access road is prohibited unless permission has been obtained from the government. Vehicles may be parked in the Air Force access area but any such parked vehicles must be clear of the boundary fence by a minimum of twenty-five feet (25') and a minimum of fifty feet (50') from the centerline of the access road. Permission to use additional offsite parking and storage areas must be obtained in writing from the landowner and a copy must be submitted to the Contracting Officer prior to the Notice to Proceed for Site Work.

c. Authorized Contractor vehicles and equipment will be placed so as not to interfere with gates, emergency escape routes, antennas, any above ground structures, or the helicopter pad.

1.4.2 Access to facility

If existing access to the site is to be temporarily blocked, temporary access shall be properly provided by the Contractor. The Contractor shall notify the Contracting Officer twenty-one (21) calendar days prior to any interruption of access to the sites. Date, site(s) affected, length of time, and alternate entry method for Site Interruption Plan shall be submitted in writing for approval in accordance with Section 01 33 00.

SECTION 01 11 00 Page 5

1.5 EXISTING WORK

In addition to "FAR 52.236-9, Protection of Existing Vegetation, Structures, Equipment, Utilities, and Improvements":

a. Remove or alter existing work in such a manner as to prevent injury or damage to any portions of the existing work which remain.

b. Repair or replace portions of existing work which have been altered during construction operations to match existing or adjoining work, as approved by the Contracting Officer. At the completion of operations, existing work shall be in a condition equal to or better than that which existed before new work started.

1.6 WORK SCHEDULE

Contractor shall submit Work Schedule to Missile Engineering within 15 days after award of the Contract. Progress Reports (AF Form 3065) shall be submitted periodically as required.

PART 2 PRODUCTS

Not used.

PART 3 EXECUTION

Not used.

-- End of Section --

SECTION 01 11 00 Page 6

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 33 00

SUBMITTAL PROCEDURES

05/11

PART 1 GENERAL

1.1 DEFINITIONS

1.1.1 Submittal Descriptions (SD)

1.1.2 Approving Authority

1.1.3 Work

1.2 SUBMITTALS

1.3 SUBMITTAL CLASSIFICATION

1.4 PREPARATION

1.4.1 Transmittal Form (AF Form 3000)

1.5 VARIATIONS

1.5.1 Considering Variations

1.5.2 Proposing Variations

1.5.3 Warranting That Variations Are Compatible

1.5.4 Review Schedule Is Modified

1.6 SUBMITTAL REGISTER

1.6.1 Use of Submittal Register

1.6.2 Contractor Use of Submittal Register

1.6.3 Approving Authority Use of Submittal Register

1.6.4 Copies Delivered to the Government

1.7 GOVERNMENT APPROVING AUTHORITY

1.8 DISAPPROVED SUBMITTALS

1.9 APPROVED SUBMITTALS

1.10 APPROVED SAMPLES

PART 2 PRODUCTS

PART 3 EXECUTION

SECTION 01 33 00 Page 1

SECTION 01 33 00

SUBMITTAL PROCEDURES

05/11

PART 1 GENERAL

1.1 DEFINITIONS

1.1.1 Submittal Descriptions (SD)

Submittals requirements are specified in the technical sections.

Submittals are identified by Submittal Description (SD) numbers and titles as follows:

SD-01 Preconstruction Submittals

Submittals which are required prior to starting any work

Certificates of insurance

List of proposed Subcontractors

List of proposed products

Progress Schedule

Submittal register

Health and safety plan

Work plan

Quality Control(QC) plan

SD-06 Test Reports

Report signed by authorized official of testing laboratory that a material, product or system identical to the material, product or system to be provided has been tested in accord with specified requirements. (Testing must have been within three years of date of contract award for the project.)

Report which includes findings of a test required to be performed by the Contractor on an actual portion of the work or prototype prepared for the project before shipment to job site.

Report which includes finding of a test made at the job site or on sample taken from the job site, on portion of work during or after installation.

Investigation reports.

Daily logs and checklists.

Final acceptance test and operational test procedure.

SECTION 01 33 00 Page 2

1.1.2 Approving Authority

Office or designated person authorized to approve submittal.

1.1.3 Work

As used in this section, on- and off-site construction required by contract documents, including labor necessary to produce submittals, construction, materials, products, equipment, and systems incorporated or to be incorporated in such construction.

1.2 SUBMITTALS

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

submittals not having a "G" designation are for information only. Submit the following in accordance with this section.

SD-01 Preconstruction Submittals

Submittal Register; G

1.3 SUBMITTAL CLASSIFICATION

Submittals are classified as follows:

1.4 PREPARATION

1.4.1 Transmittal Form (AF Form 3000)

Prior to starting any work, all items listed on the attached Submittal Register shall be submitted on individual AF Form 3000.

1.5 VARIATIONS

Variations from contract requirements require both Designer of Record (DOR) and Government approval pursuant to contract Clause FAR 52.236-21 and will be considered where advantageous to Government.

1.5.1 Considering Variations

Discussion with Contracting Officer prior to submission, after consulting with the DOR, will help ensure functional and quality requirements are met and minimize rejections and re-submittals. When contemplating a variation which results in lower cost, consider submission of the variation as a Value Engineering Change Proposal (VECP).

Specifically point out variations from contract requirements in transmittal letters. Failure to point out deviations may result in the Government requiring rejection and removal of such work at no additional cost to the Government.

1.5.2 Proposing Variations

When proposing variation, deliver written request to the Contracting Officer, with documentation of the nature and features of the variation and why the variation is desirable and beneficial to Government, including the DOR's written analysis and approval. If lower cost is a benefit, also include an estimate of the cost savings. In addition to documentation required for variation, include the submittals required for the item.

SECTION 01 33 00 Page 3

Clearly mark the proposed variation in all documentation.

1.5.3 Warranting That Variations Are Compatible

When delivering a variation for approval, Contractor, including its Designer(s) of Record, warrants that this contract has been reviewed to establish that the variation, if incorporated, will be compatible with other elements of work.

1.5.4 Review Schedule Is Modified

In addition to normal submittal review period, a period of 10 _____ working days will be allowed for consideration by the Government of submittals with variations.

1.6 SUBMITTAL REGISTER

Prepare and maintain submittal register, as the work progresses. Do not change data which is output in columns (c), (d), (e), and (f) as delivered by Government; retain data which is output in columns (a), (g), (h), and

(i) as approved. A submittal register showing items of equipment and materials for which submittals are required by the specifications is provided as an attachment. This list may not be all inclusive and additional submittals may be required. The Government will provide the initial submittal register in electronic format with the following fields completed, to the extent that will be required by the Government during subsequent usage.

Column (c): Lists specification section in which submittal is required.

Column (d): Lists each submittal description (SD No. and type, e.g. SD-02 Shop Drawings) required in each specification section.

Column (e): Lists one principal paragraph in specification section where a material or product is specified. This listing is only to facilitate locating submitted requirements. Do not consider entries in column (e) as limiting project requirements.

Thereafter, the Contractor is to track all submittals by maintaining a complete list, including completion of all data columns, including dates on which submittals are received and returned by the Government.

1.6.1 Use of Submittal Register

Submit submittal register. Submit with QC plan and project schedule.

Verify that all submittals required for project are listed and add missing submittals. Coordinate and complete the following fields on the register submitted with the QC plan and the project schedule:

Column (a) Activity Number: Activity number from the project schedule.

Column (g) Contractor Submit Date: Scheduled date for approving authority to receive submittals.

Column (h) Contractor Approval Date: Date Contractor needs approval of submittal.

SECTION 01 33 00 Page 4

Column (i) Contractor Material: Date that Contractor needs material delivered to Contractor control.

1.6.2 Contractor Use of Submittal Register

Update the following fields in the Government-furnished submittal register program or equivalent fields in program utilized by Contractor with each submittal throughout contract.

Column (b) Transmittal Number: Contractor assigned list of consecutive numbers.

Column (j) Action Code (k): Date of action used to record Contractor's review when forwarding submittals to QC.

Column (l) List date of submittal transmission.

Column (q) List date approval received.

1.6.3 Approving Authority Use of Submittal Register

Update the following fields in the Government-furnished submittal register program or equivalent fields in program utilized by Contractor.

Column (b) Transmittal Number: Contractor assigned list of consecutive numbers.

Column (l) List date of submittal receipt.

Column (m) through (p) List Date related to review actions.

Column (q) List date returned to Contractor.

1.6.4 Copies Delivered to the Government

Deliver one copy of submittal register updated by Contractor to Government with each invoice request.

1.7 GOVERNMENT APPROVING AUTHORITY

When approving authority is Contracting Officer, the Government will:

a. Note date on which submittal was received.

b. Review submittals for approval within scheduling period specified and only for conformance with project design concepts and compliance with contract documents.

c. Identify returned submittals with one of the actions defined in paragraph entitled, "Review Notations," of this section and with markings appropriate for action indicated.

Upon completion of review of submittals requiring Government approval, stamp and date approved submittals. 4 copies of the approved submittal will be retained by the Contracting Officer and 1 copy of the submittal will be returned to the Contractor.

SECTION 01 33 00 Page 5

1.8 DISAPPROVED SUBMITTALS

Contractor shall make corrections required by the Contracting Officer. If the Contractor considers any correction or notation on the returned submittals to constitute a change to the contract drawings or specifications; notice as required under the clause entitled, "Changes," is to be given to the Contracting Officer. Contractor is responsible for the dimensions and design of connection details and construction of work.

Failure to point out deviations may result in the Government requiring rejection and removal of such work at the Contractor's expense.

If changes are necessary to submittals, the Contractor shall make such revisions and submission of the submittals in accordance with the procedures above. No item of work requiring a submittal change is to be accomplished until the changed submittals are approved.

1.9 APPROVED SUBMITTALS

The Contracting Officer's approval or acceptance of submittals is not to be construed as a complete check, and indicates only that:

Approval or acceptance will not relieve the Contractor of the responsibility for any error which may exist, as the Contractor under the Contractor Quality Control (CQC) requirements of this contract is responsible for.

After submittals have been approved or accepted by the Contracting Officer, no resubmittal for the purpose of substituting materials or equipment will be considered unless accompanied by an explanation of why a substitution is necessary.

1.10 APPROVED SAMPLES

Approval of a sample is only for the characteristics or use named in such approval and is not be construed to change or modify any contract requirements. Before submitting samples, the Contractor to assure that the materials or equipment will be available in quantities required in the project. No change or substitution will be permitted after a sample has been approved.

Match the approved samples for materials and equipment incorporated in the work. If requested, approved samples, including those which may be damaged in testing, will be returned to the Contractor, at his expense, upon completion of the contract. Samples not approved will also be returned to the Contractor at its expense, if so requested.

Failure of any materials to pass the specified tests will be sufficient cause for refusal to consider, under this contract, any further samples of the same brand or make of that material. Government reserves the right to disapprove any material or equipment which previously has proved unsatisfactory in service.

Samples of various materials or equipment delivered on the site or in place may be taken by the Contracting Officer for testing. Samples failing to meet contract requirements will automatically void previous approvals.

Contractor to replace such materials or equipment to meet contract requirements.

Approval of the Contractor's samples by the Contracting Officer does not

SECTION 01 33 00 Page 6 relieve the Contractor of his responsibilities under the contract.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

Not Used

SECTION 01 33 00 Page 7

DIVISION 01 - GENERAL REQUIREMENTS

SECTION 01 42 00

SOURCES FOR REFERENCE PUBLICATIONS

08/10

PART 1 GENERAL

1.1 REFERENCES

1.2 ORDERING INFORMATION

PART 2 PRODUCTS

PART 3 EXECUTION

SECTION 01 42 00 Page 1

SECTION 01 42 00

SOURCES FOR REFERENCE PUBLICATIONS

08/10

PART 1 GENERAL

1.1 REFERENCES

Various publications are referenced in other sections of the specifications to establish requirements for the work. These references are identified in each section by document number, date and title. The document number used in the citation is the number assigned by the standards producing organization (e.g. ASTM B564 Standard Specification for Nickel Alloy Forgings). However, when the standards producing organization has not assigned a number to a document, an identifying number has been assigned for reference purposes.

1.2 ORDERING INFORMATION

The addresses of the standards publishing organizations whose documents are referenced in other sections of these specifications are listed below, and if the source of the publications is different from the address of the sponsoring organization, that information is also provided. Documents listed in the specifications with numbers which were not assigned by the standards producing organization should be ordered from the source by title rather than by number.

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

1791 Tullie Circle, NE Atlanta, GA 30329 Ph: 800-527-4723 or 404-636-8400 Fax: 404-321-5478 E-mail: ashrae@ashrae.org Internet: http://www.ashrae.org

NATIONAL AIR DUCT CLEANERS ASSOCIATION (NADCA)

1518 K Street, NW Suite 503 Washington, DC 20005 Ph: (202) 737-2926 Fax: (202) 347-8847 E-mail: info@nadca.com Internet: http://www.nadca.com

NORTH AMERICAN INSULATION MANUFACTURERS ASSOCIATION (NAIMA)

44 Canal Center Plaza, Suite 310 Alexandria, VA 22314 Ph: 703-684-0084 Fax: 703-684-0427 E-mail: online form Internet: http://www.naima.org

SECTION 01 42 00 Page 2

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

4201 Lafayette Center Drive Chantilly, VA 20151-1219 Ph: 703-803-2980 Fax: 703-803-3732 E-mail: info@smacna.org Internet: http://www.smacna.org

UNDERWRITERS LABORATORIES (UL)

2600 N.W. Lake Road Camas, WA 98607-8542 Ph: 877-854-3577 Fax: 360-817-6278 E-mail: CEC.us@us.ul.com Internet: http://www.ul.com/ UL Directories available through IHS at http://www.ihs.com

U.S. ARMY CORPS OF ENGINEERS (USACE)

Order CRD-C DOCUMENTS from:

U.S. Army Engineer Waterways Experiment Station ATTN: Technical Report Distribution Section, Services Branch, TIC 3909 Halls Ferry Road Vicksburg, MS 39180-6199 E-mail: MTC-INFO@erdc.usace.army.mil Internet:

http://gsl.erdc.usace.army.mil/SL/MTC/handbook/handbook.htm Order Other Documents from:

USACE Publications Depot Attn: CEHEC-IM-PD 2803 52nd Avenue Hyattsville, MD 20781-1102 Ph: 301-394-0081 Fax: 301-394-0084 E-mail: pubs-army@usace.army.mil Internet: http://www.usace.army.mil/publications or http://www.hnc.usace.army.mil/Missions/Engineering/TECHINFO.aspx

U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)

Ariel Rios Building 1200 Pennsylvania Avenue, N.W.

Washington, DC 20004 Ph: 202-272-0167 for Fax and E-mail see below Internet: http://www.epa.gov --- Some EPA documents are available only from:

National Technical Information Service (NTIS) 5301 Shawnee Road Alexandria, VA 22312 Ph: 703-605-6050 or 1-688-584-8332 Fax: 703-605-6900 E-mail: info@ntis.gov Internet: http://www.ntis.gov

PART 2 PRODUCTS

Not used

SECTION 01 42 00 Page 3

PART 3 EXECUTION

Not used

SECTION 01 42 00 Page 4

DIVISION 23 - HEATING, VENTILATING, AND AIR CONDITIONING (HVAC)

SECTION 23 01 30.41

HVAC SYSTEM CLEANING

08/10

PART 1 GENERAL

1.1 REFERENCES

1.2 DEFINITIONS

1.2.1 NADCA Standards

1.3 SUBMITTALS

1.4 QUALITY ASSURANCE

1.4.1 NADCA Firm

1.4.2 Experience

1.4.3 Equipment, Materials and Labor

1.4.4 Licensing

1.5 STANDARDS

1.5.1 NADCA Standards

1.6 DOCUMENTS

1.6.1 Mechanical Drawings

PART 2 PRODUCTS

PART 3 EXECUTION

3.1 SCOPE OF WORK

3.1.1 Scope

3.2 HVAC SYSTEM INSPECTIONS AND SITE PREPARATIONS

3.2.1 HVAC System Evaluation

3.2.2 Site Evaluation and Preparations

3.3 GENERAL HVAC SYSTEM CLEANING REQUIREMENTS

3.3.1 Containment

3.3.2 Particulate Collection

3.3.3 Controlling Odors

3.3.4 Component Cleaning

3.3.5 Air-Volume Control Devices

3.3.6 Service Openings

3.3.7 Ceiling Sections (Tile)

3.3.8 Air Distribution Devices (Registers, Grilles and Diffusers)

3.3.9 Air Handling Units, Terminal Units, Blowers and Exhaust Fans

3.3.10 Duct Systems

3.4 HEALTH AND SAFETY

3.4.1 Safety Standards

3.4.2 Occupant Safety

3.4.3 Disposal of Debris

3.5 MECHANICAL CLEANING METHODOLOGY

3.5.1 Source Removal Cleaning Methods

3.5.2 Methods of Cleaning Fibrous Glass Insulated Components

3.5.3 Damaged Fibrous Glass Material

3.5.4 Replacement Material

SECTION 23 01 30.41 Page 1

3.5.5 Cleaning of Coils

3.5.6 Antimicrobial Agents and Coatings

3.6 CLEANLINESS VERIFICATION

3.6.1 General

3.6.2 Visual Inspection

3.6.3 Gravimetric Analysis

3.6.4 Verification of Coil Cleaning

3.7 POST-PROJECT REPORT

SECTION 23 01 30.41 Page 2

SECTION 23 01 30.41

HVAC SYSTEM CLEANING

08/10

PART 1 GENERAL

1.1 REFERENCES

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

AMERICAN SOCIETY OF HEATING, REFRIGERATING AND AIR-CONDITIONING

ENGINEERS (ASHRAE)

ASHRAE 62.1 (2010; Errata 2011; INT 3 2012; INT 4 2012; INT 5 2013) Ventilation for Acceptable Indoor Air Quality

NATIONAL AIR DUCT CLEANERS ASSOCIATION (NADCA)

ACR (2013) Standard for Assessment, Cleaning, and Restoration of HVAC Systems

NADCA HVAC Inspection Manual (2005) Procedures for Assessing the Cleanliness of Commercial HVAC Systems

NORTH AMERICAN INSULATION MANUFACTURERS ASSOCIATION (NAIMA)

NAIMA AH112 (1993) Cleaning Fibrous Glass or Lined Sheet Metal Ducts

NAIMA AH122 (2006) Cleaning Fibrous Insulated Duct Systems - Recommended Practices

NAIMA AH127 (1999) Impact of Duct Cleaning on Internal Duct Insulation

SHEET METAL AND AIR CONDITIONING CONTRACTORS' NATIONAL ASSOCIATION

(SMACNA)

SMACNA 1966 (2005) HVAC Duct Construction Standards Metal and Flexible, 3rd Edition

U.S. ARMY CORPS OF ENGINEERS (USACE)

EM 385-1-1 (2008; Errata 1-2010; Changes 1-3 2010;

Changes 4-6 2011; Change 7 2012) Safety and Health Requirements Manual

U.S. ENVIRONMENTAL PROTECTION AGENCY (EPA)

EPA 402-C-01-001 (2001) IAQ Building Education and Assessment Tool (I-BEAM)

EPA 402-F-91-102 (1991) Building Air Quality: A Guide for

SECTION 23 01 30.41 Page 3

Building Owners and Facility Managers

UNDERWRITERS LABORATORIES (UL)

UL 181 (2013) Factory-Made Air Ducts and Air Connectors

UL 181A (2013) Standard for Closure Systems for Use with Rigid Air Ducts and Air Connectors

UL 181B (2013) Standard for Closure Systems for Use with Flexible Air Ducts and Air Connectors

1.2 DEFINITIONS

1.2.1 NADCA Standards

Perform the services specified here in accordance with the current published standards of the National Air Duct Cleaners Association (ACR and NADCA HVAC Inspection Manual).

a. All terms in this specification are defined as stated in the NADCA Standards.

b. Follow NADCA Standards without modification or deviation.

1.3 SUBMITTALS

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

submittals not having a "G" designation are Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Record of Existing Conditions; G

Coordination Plan; G

NADCA Firm; G

Designation of NADCA Team Assistants; G

Designation of NADCA Air System Cleaning Specialist (ASCS); G

Designation of NADCA Supervisor Qualifications; G

Records of Experience in the Field of HVAC System Cleaning; G

NADCA Work Execution Schedule; G

SD-06 Test Reports

Testing Procedures Summary; G

Gravimetric Analysis; G

Post-Project Report; G

SECTION 23 01 30.41 Page 4

1.4 QUALITY ASSURANCE

1.4.1 NADCA Firm

To secure approval for the proposed agency, submit information certifying that the NADCA firm is a first tier subcontractor who is not affiliated with any other company participating in work on this contract, including furnishing equipment. Further, submit the following, for the firm, to Contracting Officer for approval:

a. Independent NADCA firm:

NADCA Firm: NADCA registration number and expiration date of current certification;

NADCA Supervisor Qualifications: Name and copy of NADCA supervisor certificate and expiration date of current certification.

NADCA Air System Cleaning Specialist (ASCS): Name and documented evidence that the team field leader has satisfactorily performed full-time supervision of HVAC cleaning work in the field for not less than 3 years immediately preceding this contract's bid opening date.

NADCA Team Assistants: Names and documented evidence that each field technician has satisfactorily assisted a NADCA team field leader in performance of HVAC cleaning work in the field for not less than one year immediately preceding this contract's bid opening date.

Current Certificates: Registrations and certifications are current, and valid for the duration of this contract. Renew Certifications which expire prior to completion of the HVAC cleaning work, in a timely manner so that there is no lapse in registration or certification.

NADCA agency or NADCA team personnel without a current registration or current certification are not to perform HVAC cleaning work on this contract.

b. TAB Team Members: NADCA team approved to accomplish work on this contract are full-time employees of the NADCA firm. No other personnel is allowed to do HVAC cleaning work on this contract.

c. Replacement of NADCA Team Members: Replacement of members may occur if each new member complies with the applicable personnel qualifications and each is approved by the Contracting Officer.

1.4.2 Experience

Submit records of experience in the field of HVAC system cleaning. Bids will only be considered from firms which are regularly engaged in HVAC system maintenance with an emphasis on HVAC system cleaning and decontamination.

1.4.3 Equipment, Materials and Labor

Possess and furnish all necessary equipment, materials and labor to adequately perform the specified services and comply with the applicable provisions of NADCA General Specifications for the Cleaning of Commercial HVAC Systems and ASHRAE 62.1.

a. Assure that all employees have received safety equipment training, SECTION 23 01 30.41 Page 5 medical surveillance programs, individual health protection measures, and manufacturer's product and Material Safety Data Sheets (MSDS) as required for the work by the U.S. Occupational Safety and Health Administration, and as described by this specification. For work performed in countries outside of the U.S.A., comply with applicable national safety codes and standards.

b. Maintain a copy of all current MSDS documentation and safety certifications at the site at all times, as well as comply with all other site documentation requirements of applicable OSHA programs and this specification.

c. Submit all Material Safety Data Sheets (MSDS) for all chemical products proposed to be used in the cleaning process, including all VOC ratings.

1.4.4 Licensing

Comply with all Federal, state and local rules, regulations, and licensing requirements.

1.5 STANDARDS

1.5.1 NADCA Standards

Perform the services specified here in accordance with the current published standards of the National Air Duct Cleaners Association (ACR and NADCA HVAC Inspection Manual).

a. All terms in this specification have their meaning defined as stated in the NADCA Standards.

b. Follow NADCA Standards with no modifications or deviations being allowed.

1.6 DOCUMENTS

1.6.1 Mechanical Drawings

Obtain one copy of the following documents:

a. Project drawings and specifications

Submit a NADCA Work Execution Schedule to the Contracting Officer within 10 working days of the contract award.

PART 2 PRODUCTS

Not Used

PART 3 EXECUTION

3.1 SCOPE OF WORK

3.1.1 Scope

This section defines the minimum requirements necessary to render HVAC components clean, and to verify the cleanliness through inspection and/or testing in accordance with items specified herein and applicable NADCA Standards. Conform all inspection work to NADCA HVAC Inspection Manual.

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Remove visible surface contaminants and deposits from within the HVAC system in strict accordance with these specifications.

The HVAC system includes any interior surface of the facility's air distribution system for conditioned spaces and/or occupied zones. This includes the entire heating, air-conditioning and ventilation system from the points where the air enters the system to the points where the air is discharged from the system. The return air grilles, return air ducts (except ceiling plenums and mechanical room) to the air handling unit (AHU), the interior surfaces of the AHU, mixing box, coil compartment, condensate drain pans, humidifiers and dehumidifiers, supply air ducts, fans, fan housing, fan blades, air wash systems, spray eliminators, turning vanes, filters, filter housings, reheat coils, and supply diffusers are all considered part of the HVAC system. The HVAC system may also include other components such as dedicated exhaust and ventilation components and make-up air systems.

3.2 HVAC SYSTEM INSPECTIONS AND SITE PREPARATIONS

3.2.1 HVAC System Evaluation

Prior to the commencement of any cleaning work, perform a visual inspection of the HVAC system in the presence of the Contracting Officer to determine appropriate methods, tools, and equipment required to satisfactorily complete this project. Notify the Contracting Officer 10 days prior to the planned inspection.

Document damaged system components found during the inspection and submit to the Contracting Officer, clearly labeled "Record of Existing Conditions."

3.2.2 Site Evaluation and Preparations

Conduct a site evaluation, and establish a specific, coordination plan which details how each area of the building will be protected during the various phases of the project.

3.3 GENERAL HVAC SYSTEM CLEANING REQUIREMENTS

3.3.1 Containment

Collect debris removed during cleaning and take precautions to ensure that debris is not otherwise dispersed outside the HVAC system during the cleaning process.

3.3.2 Particulate Collection

Where the Particulate Collection Equipment (PCE) is exhausting inside the building, use HEPA filtration with 99.97 percent collection efficiency for 0.3-micron size (or greater). When the PCE is exhausting outside the building, undertake Mechanical Cleaning operations only with PCE, including adequate filtration to contain Debris removed from the HVAC system. When the PCE is exhausting outside the building, take precautions to locate the equipment down wind and away from all air intakes and other points of entry into the building.

3.3.3 Controlling Odors

Take all reasonable measures to control offensive odors and/or mist vapors

SECTION 23 01 30.41 Page 7 during the cleaning process.

3.3.4 Component Cleaning

Employ cleaning methods such that all HVAC system components are Visibly Clean as defined in applicable standards. Upon completion, return all components to those settings recorded just prior to cleaning operations.

3.3.5 Air-Volume Control Devices

Mark the position of dampers and any air-directional mechanical devices inside the HVAC system prior to cleaning and, upon completion, restore to their marked position.

3.3.6 Service Openings

Utilize service openings, as required for proper cleaning, at various points of the HVAC system for physical and mechanical entry, and inspection. Utilize the existing service openings already installed in the HVAC system where possible.

Create other openings where needed, created and resealed in conformance with NADCA Standard 05. Place closures so they do not significantly hinder, restrict, alter the air-flow within the system, or compromise the structural integrity of the system. Properly insulate closures to prevent heat loss/gain or condensation on surfaces within the system. Conform construction techniques used in the creation of openings to requirements of applicable building and fire codes, and applicable NFPA, SMACNA and NADCA Standards. Cutting service openings into flexible duct is not permitted.

Disconnect flexible duct at the ends as needed for proper cleaning and inspection.

Reseal rigid fiber glass ductboard duct systems in accordance with NAIMA recommended practices; NAIMA AH112, NAIMA AH122, and NAIMA AH127. Only closure techniques which comply with UL 181, UL 181A, or UL 181B are suitable for fiber glass duct system closures.

Clearly mark all service openings, capable of being re-opened for future inspection or remediation, and report their location in project report documents.

3.3.7 Ceiling Sections (Tile)

Carefully remove and reinstall ceiling sections to gain access to HVAC systems during the cleaning process. Replace any damaged ceiling sections caused by the removal at no cost to the Government.

3.3.8 Air Distribution Devices (Registers, Grilles and Diffusers)

Clean all air distribution devices.

3.3.9 Air Handling Units, Terminal Units, Blowers and Exhaust Fans

Insure that supply, return, and exhaust fans and blowers are thoroughly cleaned. Areas to be cleaned include blowers, fan housings, plenums (except ceiling supply and return plenums), scrolls, blades, or vanes, shafts, baffles, dampers and drive assemblies. Remove all visible surface contamination deposits in accordance with NADCA Standards.

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a. Clean all air handling unit (AHU) internal surfaces, components and condensate collectors and drains.

b. Assure that a suitable operative drainage system is in place prior to beginning wash down procedures.

c. Clean all coils and related components, including evaporator fins.

3.3.10 Duct Systems

a. Create service openings in the system as necessary in order to accommodate cleaning of otherwise inaccessible areas.

b. Mechanically clean all duct systems to remove all visible contaminants, such that the systems are capable of passing Cleaning Verification Testings NADCA Standards.

3.4 HEALTH AND SAFETY

3.4.1 Safety Standards

Comply with all applicable federal, state, and local requirements for protecting the safety of the contractors' employees, building occupants, and the environment. In particular, follow all applicable standards of the Occupational Safety and Health Administration (OSHA) when working in accordance with this specification, and EM 385-1-1.

3.4.2 Occupant Safety

Employ no processes or materials in such a manner that they will introduce additional hazards into occupied spaces.

3.4.3 Disposal of Debris

Dispose of all debris removed from the HVAC System in accordance with applicable federal, state and local requirements.

3.5 MECHANICAL CLEANING METHODOLOGY

3.5.1 Source Removal Cleaning Methods

Clean the HVAC system using Source Removal mechanical cleaning methods designed to extract contaminants from within the HVAC system and safely remove contaminants from the facility. Select Source Removal methods which will render the HVAC System Visibly Clean and capable of passing cleaning verification methods NADCA Standards and other specified standards and tests, in accordance with all general requirements. Use no cleaning method, or combination of methods, which could potentially damage components of the HVAC system or negatively alter the integrity of the system.

Incorporate the use of vacuum collection devices that are operated continuously during cleaning for all methods used. Connect a vacuum device to the downstream end of the section being cleaned through a predetermined opening. Use a vacuum collection device of sufficient power to render all areas being cleaned under negative pressure, such that containment of debris and the protection of the indoor environment is assured.

Equip all vacuum devices exhausting air inside the building, including

SECTION 23 01 30.41 Page 9 hand-held vacuums and wet-vacuums, with HEPA filters (minimum efficiency).

Equip all vacuum devices exhausting air outside the facility with Particulate Collection including adequate filtration to contain Debris removed from the HVAC system, in a manner that will not allow contaminants to re-enter the facility. Release of debris outdoors which violates any outdoor environmental standards, codes or regulations is not allowed.

All methods require mechanical agitation devices to dislodge debris adhered to interior HVAC system surfaces, such that debris may be safely conveyed to vacuum collection devices. Acceptable methods will include those which will not potentially damage the integrity of the ductwork, nor damage porous surface materials such as liners inside the ductwork or system components.

3.5.2 Methods of Cleaning Fibrous Glass Insulated Components

Thoroughly clean glass thermal or acoustical insulation elements present in any equipment or ductwork with HEPA vacuuming equipment, while the HVAC system is under constant negative pressure, and not permitted to get wet in accordance with applicable NADCA and NAIMA standards and recommendations.

Do not use cleaning methods which cause damage to fibrous glass components or which will render the system capable of passing Cleaning Verification Tests NADCA Standards).

3.5.3 Damaged Fibrous Glass Material

If there is any evidence of damage, deterioration, delamination, friable material, mold or fungus growth, or moisture such that fibrous glass materials cannot be restored by cleaning or resurfacing with an acceptable insulation repair coating, identify them for replacement.

When requested or specified, be capable of remediating exposed damaged insulation in air handlers and/or ductwork requiring replacement.

3.5.4 Replacement Material

If replacement of fiber glass materials is required, conform all materials to applicable industry codes and standards, including those of UL and

SMACNA 1966.

Replacement of damaged insulation is not covered by this specification.

3.5.5 Cleaning of Coils

Use any cleaning method which will render the Coil Visibly Clean and capable of passing Coil Cleaning Verification applicable NADCA Standards.

Coil drain pans are subject to Non-Porous Surfaces Cleaning Verification.

Maintain operability of the drain for the condensate at all times. Do not damage, displace, inhibit heat transfer, or cause erosion of the coil surface or fins, and conform to coil manufacturer recommendations when available. Thoroughly rinse coils with clean water to remove any latent residues.

3.5.6 Antimicrobial Agents and Coatings

Only apply antimicrobial agents if active fungal growth is reasonably suspected, or where unacceptable levels of fungal contamination have been

SECTION 23 01 30.41 Page 10 verified through testing.

Perform application of any antimicrobial agents used to control the growth of fungal or bacteriological contaminants after the removal of surface deposits and debris.

Use only antimicrobial agents registered by the U.S. Environmental Protection Agency (EPA 402-F-91-102)(EPA 402-C-01-001) specifically for use within HVAC system.

Apply antimicrobial agents in strict accordance with manufacturer's instructions.

Use only antimicrobial coating products, for both porous and non-porous surfaces,which are EPA registered, water soluble solutions with supporting efficacy data and MSDS records.

Apply antimicrobial coatings according to manufacturer's instructions.

Spray coatings directly onto interior ductwork surfaces, rather than "fog" downstream onto surfaces. Achieve a continuous film on the surface to be treated by the coating application, and apply in strict accordance with manufacturer's minimum millage surface application rate standards for effectiveness.

3.6 CLEANLINESS VERIFICATION

3.6.1 General

Verification of HVAC System cleanliness will be determined after mechanical cleaning and before the application of any treatment or introduction of any treatment-related substance to the HVAC system, including antimicrobial agents and coatings.

3.6.2 Visual Inspection

Visually inspect the HVAC system to ensure that no visible contaminants are present.

If no contaminants are evident through visual inspection, consider the HVAC system clean; however, further verification of the system cleanliness through gravimetric or wipe testing analysis testing may be requested at the discretion of the Contracting Officer, as specified herein.

If visible contaminants are evident through visual inspection, re-clean those portions of the system where contaminants are visible, and subject to re-inspection for cleanliness.

3.6.3 Gravimetric Analysis

At the expense of the Contractor, test sections of all four (4) zones of the HVAC system for cleanliness using the NADCA Vacuum Test (gravimetric analysis) as specified in applicable NADCA Standards. Levels of debris collected are to be equal to or less than acceptable levels defined in applicable NADCA Standards.

If gravimetric analysis determines that levels of debris are equal to or lower than those levels specified, the system is considered clean and to have passed cleanliness verification.

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If gravimetric analysis determines that levels of debris exceed those specified in applicable NADCA standards, the system will not be considered clean, and re-cleaning of those sections of the system which failed cleanliness verification will be required at the expense of the HVAC system cleaning contractor.

Perform cleanliness verification immediately after mechanical cleaning and before the HVAC system is restored to normal operation.

3.6.4 Verification of Coil Cleaning

Cleaning is to restore the coil pressure drop to within 10 percent of the pressure drop measured when the coil was first installed. If the original pressure drop is not known, the coil will be considered clean only if the coil is free of foreign matter and chemical residue, based on a thorough visual inspection (see NADCA HVAC Inspection Manual Standards).

3.7 POST-PROJECT REPORT

At the conclusion of the project, provide a Testing Procedures Summary and Post-Project Report indicating the following:

a. Success of the cleaning project, as verified through visual inspection and/or gravimetric analysis.

b. Areas of the system found to be damaged and/or in need of repair.

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