Statement of Work.pdf

Statement of Work (SOW) Project: Bldg 154 York Chiller Maintenance

GENERAL INFORMATION

1.0 Scope of Work: The USDA National Centers for Animal Health, 1920 Dayton

Ave, Ames, IA, 50010 has a requirement for a 1-year base period contract with four 12 month option periods for seasonal maintenance on Bldg. 154 #3 York 1360 Ton Absorption Chiller (MN YIA ST-14F3-46-C-S-D, SN 11521L43283249), Bldg. 154 #4 1600 Ton York Electric Centrifugal Chiller (MN YK TG TB J3-DD FS, SN SBPM-64050D), Bldg. 154 #5 1600 Ton York Electric Centrifugal Chiller (MN YK TG TB J3-DD FS, SN SBPM-640650) and Bldg.

154 #8 1600 Ton York Electric Centrifugal Chiller (MN YK TG TB J3-DD FS, SN SFSM-562350).

This contract is anticipated to be a Base + Four Option Year contract.

Base Year – 9/15/2023-9/14/2024 Option Year 1 – 9/15/2024-9/14/2025 Option Year 2 – 9/15/2025-9/14/2026 Option Year 3 – 9/15/2026-9/14/2027 Option Year 4 – 9/15/2027-9/14/2028

2.0 Background: Seasonal maintenance on Bldg. 154 #3 York 1360 Ton Absorption Chiller (MN YIA ST-14F3-46-C-S-D, SN 11521L43283249), Bldg. 154 #4 1600 Ton York Electric Centrifugal Chiller (MN YK TG TB J3-DD FS, SN SBPM-64050D), Bldg.

154 #5 1600 Ton York Electric Centrifugal Chiller (MN YK TG TB J3-DD FS, SN SBPM-640650) and Bldg. 154 #8 1600 Ton York Electric Centrifugal Chiller (MN YK

TG TB J3-DD FS, SN SFSM-562350).

CONTRACTOR REQUIREMENTS

3.0 Technical Requirements/Tasks:

NCAH Equipment List York

Equipment Location

ID Type Nominal Capacity

Model Number

Serial Number

Bldg 154 CH-3 Steam Absorption

Chiller

1360 tons YIA ST- 14F3-46-

C-S-D

11521L43283249

Bldg 154 CH-4 Electric Centrifugal

Chiller

1,600 Tons YK TG TB

J3-DD FS

SBPM-64050D

Bldg 154 CH-5 Electric Centrifugal

Chiller

1,600 tons YK TG TB

J3-DD FS

SBPM-640650

Bldg 154 CH-8 Electric Centrifugal

Chiller

1,600 tons YK TG TB

J3-DD FS

SFSM-562350

INSPECTION AND MAINTENANCE PROGRAM

PERIOD OF COVERAGE

Base Year – 9/15/2023-9/14/2024 Option Year 1 – 9/15/2024-9/14/2025 Option Year 2 – 9/15/2025-9/14/2026 Option Year 3 – 9/15/2026-9/14/2027 Option Year 4 – 9/15/2027-9/14/2028

Option year #2 and option year #4 shall include Eddy Current testing for the evaporator and condenser on chillers #3, #4, #5, and #8.

The quote shall be inclusive of all site time and travel costs to include pricing for 16 hrs.

of additional service/trouble call associated with service/trouble calls and one 4-hour customer training session per year.

Note: Customer training session will consist of an on-the-job Training question/answer session led by the contractor on the chiller operation and chiller plant operations when requested by the USDA. The contractor shall provide list of topics and scope of training for absorber and electric chillers in the quote.

INSPECTION AND MAINTENANCE PROGRAM

Equipment Maintenance Requirements

Equipment: Chillers CH-3/CH-4/CH-5/CH-8.

Location: Building 154

I. Post Season (winter) Refrigerant Recovery (Chillers 4, 5 & 8). (October to December)

1. Recover refrigerant from Chillers CH-4/CH-5/CH-8 and transfer it into government owned recovery cylinders located adjacent to the chillers. IAW all EPA rules as applicable.

2. After transfer, weigh the recovery cylinders and provide report to USDA on refrigerant charge for each Chiller CH-4/CH-5/CH-8 versus factory specified charge to determine if more refrigerant will be needed during spring start up.

II. Post Season (winter) Inspection (October to March).

A. Chiller 3.

1. Review control panel for proper operation and recorded fault histories.

2. Check overall condition of unit.

3. Check system pressures and temperatures.

4. Measure concentration levels from the absorber, absorber spray & generator.

5. Take solution sample and send to lab for analysis.

6. Check for proper level in site glass(es).

7. Check evaporators pan overflow.

8. Replace vacuum pump oil.

9. Check accuracy of manometer or absolute pressure gauge.

10. Check purge pump belt.

11. Check for presence of non-condensables (ie bubble rate).

12. Check for proper operation of steam.

13. Check and tighten electrical connections.

14. Check accuracy of thermistors and add heat conductive compound as needed.

15. Inspect starter contacts for signs of wear.

16. Perform preventative procedures to flow proving devices.

17. Record and log all operating parameters.

18. Remove and dispose any debris from any maintenance activity.

19. Document tasks performed during visit and report any observations to appropriate customer representative.

B. Chillers 4, 5 & 8.

1. Record voltages.

2. Megohm compressor motor and record readings.

3. Lubricate open drive motor.

4. Check coupling.

5. Check coupling alignment on open drive units.

6. Check seal, record seal leakage container level, and drain seal leakage container.

7. Check inlet vane operator and linkage, lubricate where required.

8. Change oil filters and filter dryers.

9. Check oil pump and oil regulator.

10. Check oil sump heater amp draw, record amp readings.

11. Check oil sump heater thermostat operation.

12. Check other oil system components including oil cooler, strainer, and solenoid where applicable.

13. Inspect 4160-volt starters on chillers #4, #5 and #8 to include:

A. Check terminals and tighten if needed.

B. Check conditions of contacts where applicable.

C. Clean air filters where applicable.

14. Inspect 460-volt oil pump starters on chillers #4, #5 and #8 to include:

A. Check terminals and tighten if needed.

B. Check conditions of contacts where applicable.

C. Meg ohm oil pump motors and record readings.

15. Perform micro diagnostic test.

16. Review micro settings and diagnostic log.

17. Leak check chillers and record any leaks found that need repaired.

(Provide a separate bid for repairs if needed).

18. Review maintenance procedures with USRO Supervisor or Work

Leader and make recommendations for additional service or repairs, if required.

III. Spring Start Up (April to May). One Spring Start up inspection will be performed including the following (Customer to rotate equipment as needed):

A. Chiller 3.

1. Review control panel for proper operation and recorded fault histories.

2. Verify chilled, absorber/condenser and generator water/steam valves are in proper operating position.

3. Check for proper condenser and chilled water flow.

4. Check quality and level of vacuum pump oil.

5. Check accuracy of manometer or absolute pressure gauge.

6. Check vacuum pump capability.

7. Check for presence of non-condensables (ie bubble rate).

8. Purge machine (as required).

9. Perform a refrigerant blow-down.

10. Check overall condition of unit.

11. Check system pressures and temperatures.

12. Measure concentration levels from the absorber, absorber spray & generator

13. Check for proper level in site glass(es).

14. Check evaporators pan overflow.

15. Check for proper operation of steam valve.

16. Record and log all operating parameters.

17. Document tasks performed during visit and report any observations to appropriate customer representative.

B. Chillers 4, 5 & 8.

1. Transfer refrigerant from Government owned recovery cylinders back into Chillers CH-4/CH-5/CH-8. IAW all OSHA, EPA, and federal, state and local regulations.

2. Check general condition of chillers. Log chillers under normal conditions.

3. Check water flow and flow switch in the condenser and cooler.

4. Inspect chiller and adjust safety controls.

5. Check operation of controls.

6. Check oil and refrigerant levels.

7. Check operation of lube oil system.

8. Check operation of motor and starter.

9. Checking and testing all operational and safety controls.

10. Checking the starter operation.

11. Starting the chiller and calibrating the controls.

12. Review maintenance procedures with USRO Supervisor or Work

IV. Summer Inspection (June to August). One inspection during the operating season on all machines during the same trip (Customer to rotate equipment as needed).

A. Chiller 3.

1. Check with appropriate customer representative for operational deficiencies.

2. Review control panel for proper operation and recorded fault histories.

3. Check overall condition of unit.

4. Check system pressures and temperatures.

5. Measure concentration levels from the absorber, absorber spray & generator.

6. Check for proper level in site glass(es).

7. Check evaporators pan overflow (if applicable).

8. Perform a refrigerant blow-down.

9. Check quality and level of vacuum pump oil.

10. Check vacuum pump capability.

11. Purge machine (as required).

12. Check for proper operation of steam valve.

13. Check for proper condenser and chilled water flow.

14. Check accuracy of manometer or absolute pressure gauge.

15. Check purge pump belt.

16. Check for presence of non-condensables (ie bubble rate).

17. Record and log all operating parameters.

18. Document tasks performed during visit and report any observations to appropriate customer representative.

B. Chillers 4, 5 & 8.

1. Check general condition of chillers.

2. Log chillers under normal conditions.

3. Remove one oil sample from each machine and send to laboratory for analysis. A formal laboratory report will be provided detailing level of contamination and wear metals content.

4. Review maintenance procedures with USRO Supervisor or Work

Provide Comprehensive Reports: Review maintenance procedures with Utility Plant Supervisor or Work Leader and make recommendations for additional service or repairs, if required. Provide comprehensive report of inspections, service, and repair recommendations. Provide a report describing all findings during the periodic inspection and maintenance site visits.

A. Written report with recommendations for service or repair, if required B. Post-season Inspection and Maintenance C. Spring Start up Inspection and Maintenance D. Summer Inspection and Maintenance

York Chiller Maintenance Requirements (Form 160.73-02 (1202)) By reference, the manufacturer’s requirements are included as part of this specification. A copy of this document is available for review in the Utility Plant Control Center or from the Manufacturer. Titles of the section topics are provided to assist in identifying subject matter for maintenance activities.

Maintenance Section Topics

A. Checking System for Leaks B. Conducting R-22 Pressure Test C. Vacuum Testing D. Vacuum Dehydration E. Refrigerant Charging F. Checking Refrigerant Charge during Unit Shutdown G. Megging the Motor H. Chemical Water Treatment I. Cleaning Evaporator and Condenser Tubes J. Tube Cleaning Procedures K. Testing for Evaporator and Condenser Tube Leaks L. Compressor

Preventive Maintenance Section Topics

• Compressor

• Compressor Motor

• Greased Bearings on Q5800 Motors

• Leak Testing

• Evaporator and Condenser

• Oil Return System

• Electrical Control

NCAH Responsibility:

A. Chilled water loop filled, bled of air and ready to circulate when required.

B. Condenser water loop filled and ready to circulate when required.

C. Condenser and Evaporator drained and cleaned when required.

D. Make equipment available/operational as needed for maintenance services.

E. Receive, review, and act on maintenance repair item by either in-house personnel or contractor accomplishment.

4.0 Government Furnished:

• The Government shall furnish industrial water, electrical power, and compressed air at 95-100psi as needed.

• Escorts as needed.

• Restrooms will be made available at building 154.

5.0 Deliverables / Schedule:

Item No.

Deliverable

Objective

Due

Bldg 154 Chillers 3,4,5,8

1 Eddy Current testing

The option year #1 and #4 shall include Eddy Current testing for the evaporator and condenser on chiller #’s 3, 4, 5, & 8.

Option years 1 and 4.

2 16 hours of service/ trouble calls

Inclusive of all site time and travel costs to include 16 hrs of additional service/trouble call associated with service/trouble calls

During each contract year.

3 One 4-hour training session

On site time and travel cost associated with one 4-hour training session per year. Customer training session will consist of an informal on the job training question/answer session.

Once per year

4 Chillers 4, 5 & 8 Post Season (winter) Refrigerant Recovery.

• Recover refrigerant from Chillers CH-4/CH-5/CH-8 and transfer it into government owned recovery cylinders located adjacent to the chillers. IAW all EPA rules as applicable.

• After transfer, weigh the recovery cylinders and provide report to USDA on refrigerant charge for each Chiller CH-4/CH-5/CH-8 versus factory specified charge to determine if more refrigerant will

October to December be needed during spring start up.

5 Chiller 3.

Post Season (winter) Inspection

• Review control panel for proper operation and recorded fault histories.

• Check overall condition of unit.

• Check for system pressures and temperatures.

• Measure concentration levels from the absorber, absorber spray & generator.

• Take solution sample and send to lab for analysis.

• Check for proper level in site glass(es).

• Check evaporators pan overflow.

• Replace vacuum pump oil.

• Check accuracy of manometer or absolute pressure gauge.

• Check purge pump belt.

• Check for presence of non-condensable (i.e., bubble rate).

• Check for proper operation of steam.

• Check and tighten electrical connections.

• Check accuracy of thermistors and add heat conductive compound as needed.

• Inspect starter contacts for signs of wear.

• Perform preventative procedures to flow proving devices.

• Record and log all operating parameters

• Remove and dispose any debris from any maintenance activity.

• Document tasks performed during visit and report any observations to appropriate customer representative

March.

6 Chillers 4,5,8.

Post Season (winter) Inspection

• Record voltages.

• Megohm compressor motor and record readings.

• Lubricate open drive motor.

• Check coupling.

• Check coupling alignment on open drive units.

• Check seal, record seal leakage container level and drain seal leakage container.

• Check inlet vane operator and linkage, lubricate where required.

• Change oil filters and filter dryers.

• Check oil pump and oil regulator.

• Check oil sump heater amp draw, record amp readings.

• Check oil sump heater thermostat operation.

• Check other oil system components including oil cooler, strainer and solenoid where applicable.

• Inspect 4160-volt starters on chillers #4, #5 and #8 to include:

• Check terminals and tighten if needed

• Check conditions of contacts where applicable

• Clean air filters where applicable

• Inspect 460-volt oil pump starters on chillers #4, #5 and #8 to include:

• Check terminals and tighten if needed

• Check conditions of contacts where applicable

• Meg ohm oil pump motors and record readings

• Perform micro diagnostic test.

• Review micro settings and diagnostic log.

• Leak check chillers and record any leaks found that need repaired.

(Provide a separate bid for repairs if needed).

• Review maintenance procedures

March.

with USRO Supervisor or Work Leader and make recommendations for additional service or repairs, if required.

7 Chiller 3.

Spring Start Up.

One Spring Start up inspection will be performed including the following (Customer to rotate equipment as needed)

• Review control panel for proper operation and recorded fault histories.

• Verify chilled, absorber/condenser and generator water/steam valves are in proper operating position.

• Check for proper condenser and chilled water flow.

• Check quality and level of vacuum pump oil.

• Check accuracy of manometer or absolute pressure gauge.

• Check vacuum pump capability.

• Check for presence of non-condensable (i.e., bubble rate).

• Purge machine (as required).

• Perform a refrigerant blow-down.

• Check overall condition of unit.

• Check system pressures and temperatures.

• Measure concentration levels from the absorber, absorber spray & generator

• Check for proper level in site glass(es).

• Check evaporators pan overflow.

• Check for proper operation of steam valve.

• Record and log all operating parameters.

• Document tasks performed during visit and report any observations to appropriate customer representative.

April to May

8 Chillers 3,4,5,8.

Spring Start Up.

One Spring Start up

• Transfer refrigerant from Government owned recovery cylinders back into Chillers CH-

April to May inspection will be performed including the following (Customer to rotate equipment as needed)

4/CH-5/CH-8. IAW all OSHA, EPA and federal, state and local regulations.

• Check general condition of chillers. Log chillers under normal conditions.

• Check water flow and flow switch in the condenser and cooler.

• Inspect chiller and adjust safety controls.

• Check operation of controls.

• Check oil and refrigerant levels.

• Check operation of lube oil system.

• Check operation of motor and starter.

• Checking and testing all operational and safety controls.

• Checking the starter operation.

• Starting the chiller and calibrating the controls.

• Review maintenance procedures with USRO Supervisor or Work Leader and make recommendations for additional service or repairs, if required.

9 Chiller 3.

Summer Inspection.

One inspection during the operating season on all machines during the same trip (Customer to rotate equipment as needed).

• Check with appropriate customer representative for operational deficiencies.

• Review control panel for proper operation and recorded fault histories.

• Check overall condition of unit.

• Check system pressures and temperatures.

• Measure concentration levels from the absorber, absorber spray & generator.

• Check for proper level in site glass(es).

• Check evaporators pan overflow (if applicable).

• Perform a refrigerant blow-down.

• Check quality and level of vacuum pump oil.

June to August

• Check vacuum pump capability.

• Purge machine (as required).

• Check for proper operation of steam valve.

• Check for proper condenser and chilled water flow.

• Check accuracy of manometer or absolute pressure gauge.

• Check purge pump belt.

• Check for presence of non-condensable (i.e., bubble rate).

• Record and log all operating parameters.

• Document tasks performed during visit and report any observations to appropriate customer representative.

10 Chillers 4,5,8.

Summer Inspection.

One inspection during the operating season on all machines during the same trip (Customer to rotate equipment as needed).

• Check general condition of chillers.

• Log chillers under normal conditions.

• Remove one oil sample from each machine and send to laboratory for analysis. A formal laboratory report will be provided detailing level of contamination and wear metals content.

• Review maintenance procedures with USRO Supervisor or Work Leader and make recommendations for additional service or repairs, if required.

June to August

11 Provide Comprehensive Reports

• Review maintenance procedures with Utility Plant Supervisor or Work Leader and make recommendations for additional service or repairs, if required.

Provide comprehensive report of inspections, service, and repair recommendations. Provide a report to the NCAH describing all findings during the periodic

During duration of contract.

inspection and maintenance site visits.

• Written report with recommendations for service or repair, if required.

• Post-season Inspection and Maintenance.

• Spring Start up Inspection and Maintenance.

• Summer Inspection and Maintenance.

12 NCAH

Responsibility

• Chilled water loop filled, bled of air and ready to circulate when required.

• Condenser water loop filled and ready to circulate when required.

• Condenser and Evaporator drained and cleaned when required.

• Make equipment available/operational as needed for maintenance services as required.

During duration of contract.

6.0 Travel:

The contractor is responsible for all mobilization/demobilization to and from the site.

7.0 Contractor’s Key Personnel: N/A

8.0 Security Requirements: The names of contractor employees will be given to the guard desk to verify employee requesting access to site.

NCAH is a secure facility. The contractor shall follow the following requirements:

• Contractor personnel shall sign in and sign out every time they enter or exit the facility.

• Contractor personnel shall present a valid photo government issued ID every time they enter the site.

• Contractor personnel shall be supplied a NCAH badge that must be displayed at all times while on site.

• Contractor personnel shall return the NCAH badge every time they leave the secure facility.

• Contractor personnel shall be escorted at all times while within the secure areas of the NCAH facility.

9.0 Data Rights: N/A

10.0 Section 508 – Electronic and Information Technology Standards: N/A

11.0 Place of Performance: The Work is located at the National Center for Animal

Health in Ames Iowa. The York absorption chiller 3 and electric chillers 4, 5, and 8 are located in the Utility Plant, building 154.

12.0 Period of Performance:

Base Year: 09/15/2023-09/14/2024 Option Year 1: 09/15/2024-09/14/2025 Option Year 2: 09/15/2025-09/14/2026 Option Year 3: 09/15/2026-09/14/2027 Option Year 4: 09/15/2027-09/14/2028

13.0 Technical Point of Contact: TBD