Attachment 1 Statement of Work - REVISION 1.pdf

STATEMENT OF WORK - REVISION 1

Project: BRL Multiple Air Handler Unit Repair

Revision 1.0 changes noted in “green” are added after the formal site visit.

Location: Biosciences Research Laboratory (BRL) 1616 Albrecht Blvd N, Fargo ND 58102

GENERAL INFORMATION

1.0 Performance Work Statement: A number of Air Handler Units at the Biosciences Research Center require service (AHUs 1-1, 1-6, 1-10, 6-32). Service is required to repair blown coils, move vacuum breakers from condensate side to steam side, and remediation work to create a necessary drop for drainage of collected condensate. It is intended that units requiring replacement coils will utilize existing housing but include a change in coil dimensions so as to create the necessary space and drop for drainage. In order to achieve the required pitch/drop for drainage, AHU 6-32 will require a hole cut in existing concrete, a pit to be dug, and existing condensate pump dropped into the pit. AHU 6-32 will also require a Cooney-type freeze block coil as a replacement coil.

2.0 Background: A recent assessment of the HVAC systems for the Biosciences Research Laboratory revealed functional deficiencies and installation errors affecting the viability and efficient operation of air handler units. These deficiencies and errors have culminated in the failure of steam heat coils. Replacement of damaged coils and modification of the units will improve operation and viability of the unit. As with AHU 6-32, drainage of condensate must be improved for proper functioning of air handler units 1-1, 1-6, and 1-10.

CONTRACTOR REQUIREMENTS

3.0 Technical Requirements/Tasks:

A. AHU1-1

a. Replace steam coil, modifying size with updated dimensions allowing coil to utilize existing space for drainage. (Current installed coil contains dead space between top of coil and housing which can be utilized by installing replacement coil elevated within the housing to facilitate condensate drainage.)

b. Modify piping to relocate supply to top of coil external of housing.

c. Modify/replace piping to trap to incorporate maximum drop for drainage.

(Minimum of 12” drop)

d. Re-locate vacuum breaker to steam side of the steam coil after the valve.

B. AHU 1-10

a. Modify piping to trap to allow maximum drop for drainage. (Minimum of 18” drop)

b. Relocate vacuum breaker to steam side of coil after the valve.

C. AHU 1-6

a. Replace steam coil, modifying coil dimensions to utilize existing location within housing for drainage. Existing steam coil shall be returned to owner.

b. Replace/modify existing piping to incorporate required drop for drainage to trap and beyond. (Minimum of 12” drop)

D. Replace AHU 6-32

a. Install Cooney-type freeze block coil as replacement for existing steam coil.

b. Dig drain pit and drop condensate pump. Pit dimensions shall be 4’ by 5’ by

3’ deep. Execution of this task shall begin when the 10 day forecast shows that the lowest temperatures will be 40 degrees Fahrenheit or better.

Contractor shall work with the USDA to schedule the start date. USDA shall install the sump pump once pit is complete.

c. Modify piping to industry standards for consistent pipe diameter and replace steam trap to industry standard. (Minimum of 18” drop)

d. Move vacuum breaker to supply side, after valve.

4.0 Government Furnished: Not applicable.

5.0 Deliverables / Schedule to include the following:

AHU

No.

Deliverable

Objective

AHU

1-1

Replace Steam Coil Replace existing coil with re-sized dimensions, eliminating current dead space above coil and allowing adequate space below coil for drainage. Minimum drop of 12”.

AHU

1-1

Relocate vacuum breaker to proper side of coil

Relocate Vacuum Breaker on AHU 1-1 to steam side of coil

AHU

1-1

Modify piping Replace piping to maximize drainage to steam trap and beyond

AHU

1-6

Replace Steam Coil Replace existing coil with re-sized dimensions, allowing adequate space below coil for drainage. Minimum drop of 12”. Existing steam coil shall be returned to owner.

AHU

1-6

Modify piping Replace piping to maximize drainage to steam trap and beyond

AHU

1-10

Relocate vacuum breaker to proper side of coil

Relocate Vacuum Breaker on AHU 1-1 to steam side of coil

AHU

1-10

Modify piping Replace piping to maximize drainage to steam trap and beyond. Minimum drop of 18”.

AHU

6-32

Replace Coil with Cooney Coil

Replace blown coil with Cooney Coil.

AHU

6-32

Bust and remove concrete and dig pit where existing condensate pumps sit to create adequate drop for drainage

Modify space to add necessary drop for condensate drainage. Drain pit to be 4’ by 5’ by 3’ deep. USDA shall install sump pump.

AHU

6-32

Relocate vacuum breaker to proper side of coil

Relocate Vacuum Breaker on AHU 6-32 to steam side of coil

AHU

6-32

Modify piping Replace piping to maximize drainage to steam trap and beyond. Minimum drop of 18”.

Submittals must be received no more than 30 days after award.

Product data sheets, preventive maintenance parts list, and warranty information no more than 60 days from the date of the award.

Provide work schedule, including schedule for delivery of materials, no more than 60 days from the date of the award.

6.0 Travel: Not applicable

7.0 Contractor’s Key Personnel:

A. Provide site superintendent’s name and key team members prior to the start of the project.

B. Superintendent to be competent person with OSHA 30 Certification.

8.0 Security Requirements: All personnel shall have a U.S. photo ID, such as U.S. Driver’s

License, or U.S. passport.

9.0 Data Rights: Not Applicable.

10.0 Section 508: Electronic and Information Technology Standards: Electronic submittals and manuals are to be in Adobe file format.

11.0 Period of Performance: The performance period for this task is 90 days (3 months) 120 days (4 months).