SOW_B117_HVAC.pdf

S T A T E M E N T O F W O R K for

VGLZ 182020

Repair HVAC – B117

Selfridge Air National Guard Base, Michigan

Prepared by:

Dan Frick

9 Feb 2018

STATEMENT OF WORK

FOR

VGLZ 182020

Repair HVAC – B117

Selfridge Air National Guard Base, Michigan

The contractor shall provide the repairs for the HVAC at bldg. 117. This shall include but is not limited to new air handling units with both heating and cooling, new condensing units, structural work of mezzanine, DDC, and more. Contractor is responsible for all remaining work effort in order to provide an acceptable final product that meets the requirements of this Statement of Work (SOW), drawings and specification.

All work performed under this SOW shall be conducted in accordance with all applicable state and federal laws, regulations, and codes, ANG policies and regulations, Specifications, and the SOW as outlined below:

1. The contractor shall complete, in its entirety, the repair and replacement work in bldg. 117 identified in the 100% Design package dated 8 February 2017. The design was completed by Harley Ellis Devereaux (HED). This project was concurrently designed with another HVAC replacement at bldg. 126. Disregard all mention of bldg. 126 in the plans and specs. Only bldg.

117 is in the scope of this project.

2. HVAC work at bldg. 117 includes the following major work elements (see drawings and specs for complete work description):

a. Mechanical demolition shall include removal of equipment identified on Drawings along with sufficient ductwork, heating hot water piping, refrigerant piping, and condensate drainage piping to allow removal of the equipment and installation of replacement equipment.

b. Demolition shall include removal of equipment supports, pipe and duct supports, pipe insulation, and duct insulation as necessary to accomplish demolition work and necessary to accommodate installation of new equipment.

c. Systems containing any type of refrigerant identified for demolition shall have all refrigerant evacuated, reclaimed, and turned over to the Selfridge ANGB Heating and Refrigeration Shop located in Building 126.

d. Two new modular air handling units with hot water heating coils, direct expansion cooling coils, economizers, and filters shall be provided to replace existing air handler and heating and ventilating unit.

e. Two new condensing units with associated refrigerant piping shall be provided to supply the cooling to both new air handling units.

f. Existing mezzanine shall be expanded to facilitate the installation of new air handling units.

g. New equipment and systems shall be controlled with direct digital controls (DDC) manufactured or distributed by Automated Logic Corporation.

3. General Repair guidelines include, but are not limited to the following specifications and regulations:

a. APPLICABLE STANDARDS: Latest published versions shall be used.

b. Mechanical systems – ASHRAE and SMACNA Standards, Including ASHRAE 90.1.

c. National Electric Code, NFPA No. 70

d. National Electric Safety Code (ANSI C2).

e. National Fire Protection Association (NFPA 101) Life Safety Code.

f. International Building Code (IBC).

g. Uniform Federal Accessibility Standard (UFAS)

h. International Mechanical Code (IMS).

i. International Plumbing Code (IPC).

j. Applicable State, City and County codes and regulations.

k. Occupational Safety and Health Administration standards

l. Michigan Occupational Safety and Health Administration standards

4. Hardware and equipment shall be comprised of new products the manufacturer is currently manufacturing, have spare parts available for at least five years after completion of contract.

5. Operation and Maintenance Manuals shall be provided, to include (but not limited to) spare parts list, operator’s manual, and contractors’ contact information. Include 2 binders to contain all the information/ warranties and one electronic copy.

6. Warranty: Contractor shall provide a one year warranty on workmanship of the entire project in addition to any manufacturer’s warranty on materials installed. The contractor will provide any commercial warranty on materials or equipment included in the construction that exceeds this one-year, all-inclusive warranty. The commercial warranty will be issued to the Government.

7. Submittals: Material submittals shall be submitted, reviewed, and approved prior to installation.

The Government will review the submittals and provide comments/approval within 10 days. All comments shall be addressed prior to beginning work. Also, any shop drawings that are required shall be submitted for Government review. The shop drawings review will be returned to the contractor within 10 days. Refer to AF Form 66 for any additional submittals.

8. There will be a site visit, prior to award to allow for site investigation. Any site visits post award shall be coordinated with the Government.

9. Record drawings may be provided to the contractor as a courtesy at the discretion of the Government, but their accuracy is not guaranteed. The contractor shall do his own field investigations of the utilities and other items in the area and base his work accordingly. The Government assumes no responsibility for any conclusions or interpretations made by the

Contractor based on the information made available by the Government. Nor does the Government assume responsibility for any understanding reached or representation made concerning conditions which can affect the work by any of its officers or agents before the execution of this contract, unless that understanding or representation is expressly stated in this contract. These record drawings bear no such representation or understanding.

10. Contractor shall conduct an intensive field survey of all existing conditions. The contractor should survey existing conditions and correlate their work requirements accordingly. Contractor shall verify all dimensions, calculations and code requirements for all elements of work. The contractor is ultimately responsible for constructability and providing a complete and usable product at the completion of the project.

11. The disturbance of Asbestos-Containing Building Material (ACBM) is not anticipated during this project. However, if suspected ACBM is encountered, work in the immediate vicinity must stop and the Contracting Officer (CO) notified. After consultation with base personnel, the CO will direct further action to be taken. Work should proceed uninterrupted in unaffected areas of the project.

12. The presence of lead on painted surfaces is not expected.

13. Period of Performance shall be 90 calendar days from notice to proceed.

14. The contractor shall submit to the Contracting Officer a coordinated schedule indicating the sequence of operations for review prior to commencement of the work. Currently base is open from Monday thru Friday 0700-1700 only. Any work outside these hours and on Federal Holidays must be requested at least 72 business hours in advance and then approved by the contracting officer. The federal holidays are listed below:

a. January 1st – New Year’s Day

b. Third Monday in January – Martin Luther King Jr. Day

c. Third Monday in February – Washington’s Birthday

d. Last Monday in May – Memorial Day

e. July 4th – Independence Day

f. First Monday In September – Labor Day

g. Second Monday in October – Columbus Day

h. November 11th – Veterans Day

i. Last Thursday in November – Thanksgiving Day

j. December 25th – Christmas Day

15. The facility will be occupied during this project. The Contractor shall fully cooperate with the other contractors and with Government employees and shall carefully adapt scheduling and performing the work under this contract to accommodate the additional work (of others), heeding any direction that may be provided by the Contracting Officer. The Contractor shall not commit or permit any act that will interfere with the performance of work by any other contractor or by Government employees without the approval of the Contracting Officer.

16. Temporary utilities (power, HVAC, lighting, etc) will not be required to support building use and functions during this project.

17. Egress: Do not close or obstruct walkways, corridors, or other occupied facilities without written permission from the contracting officer.

18. Life Safety

a. When demolition occurs in or near an occupied space, measures must be taken to protect the indoor air quality, reduce noise, limit vibration from cutting or chopping, reduce odors emanating from demolition debris, and mitigate dust infiltration from airborne particles and foot traffic.

b. Use water mist, temporary enclosures, and other suitable methods to limit dust and dirt rising and scattering in the air. Do not use water when it may damage existing construction or create hazardous or objectionable conditions such as ice, flooding, and pollution. Remove decayed, vermin-infested, or otherwise dangerous or unsuitable materials, and promptly dispose of them off-site. Maintain adequate ventilation when using cutting torches.

c. Avoid unsightly conditions by cleaning adjacent structures and architectural finishes.

Eliminate tractable dirt by wet-mopping floors and wiping down walls and doors of the demolition enclosure. Provide walk-off mats from the area of work to prevent dust from being tracked onto adjacent floor finishes. Do not use public corridors, lobbies, or hallways as staging areas. Damage to adjacent construction during demolition must be repaired and restored within 48 hours by the contractor.

19. Locate, identify, disconnect, and seal or cap off any utilities as necessitated by the project. Do not interrupt existing utilities serving occupied or operating facilities unless authorized in writing by the contracting officer. Arrange to shut off indicated utilities with respective providers. Provide at least 72 hours’ notice to the government if a shutdown of service is required during the changeover. Maintain services to remain and protect them against damage during the project.

20. At the conclusion of the project the Contractor will be responsible to compile and furnish to the Government, DD Form 1354, "TRANSFER AND ACCEPTANCE OF MILITARY REAL PROPERTY”, indicating all costs and quantity data of materials and systems furnished and installed. A draft DD1354 showing a list of items for which the costs and quantity data is required will be furnished to the Contractor.