Attachment_1_-_Scope_of_Work.pdf

National Park Service Interior Region I North Atlantic- Appalachian

Philadelphia, Pennsylvania

STATEMENT OF WORK:

Valley Forge National Historical Park

1. BACKGROUND

Valley Forge National Historical Park is looking for an HVAC service contract for four locations at the Park. The Admin and Theater has one shared system, the Visitor Center and Philander Knox Chase.

The park is requesting a three year service contract (base year plus two one-year options) for four (4) quarterly inspections/Preventative Maintenance calls. The fourth call will include annual certification/preventive maintenance.

Emergency repairs will be provided on an as needed basis. *These emergency and non-emergency service calls will be ordered on an "as needed" basis and funding will be provided via a modification at time of order*

2. OBJECTIVES:

The objective for the contractor is to provide scheduled quarterly maintenance and annual certification of all our HVAC systems and related equipment. The awarded contractor will perform four (4) quarterly inspections/preventative maintenance calls. The fourth call will be for annual certification/preventive maintenance. The contractor will also accomplish component life-cycle replacements and emergency repairs on an as needed basis to maintain normal operation of the chillers and related equipment which will be billed separate from this contract.

3. Location of Work:

1). Valley Forge National Historical Park 1400 North Outer Line Dr King of Prussia, PA 19406

• Administration Building

• Theater

• Visitor Center

2).Philander Knox Chase (PCK) 151 Library Ln Malvern Pa 19355

4. PERIOD OF PERFORMANCE:

This contract will include one (1) base year with two one-year options.

Base Year - September 23, 2024 through September 22, 2025 Option 1 – September 23, 2025 through September 22, 2026 Option 2 - September 23, 2026 through September 22, 2027

5. SCOPE:

The scope of work for the contractor is to provide the services listed in the objectives above in addition to component life-cycle replacements and emergency repairs on an as needed basis to maintain normal operation of chillers and evaporators/condensers, fan coil units, duct heaters.

All equipment is listed in the attached PDF equipment schedules.

The VAV’s at the Visitor Center will not be part of this contract and will be serviced in-house.

The contractor will also provide scheduled component replacement on our HVAC Systems at times when system failure or component degradation occurs.

*Non Emergency Service Calls:

The contractor shall be required to respond to non-emergency service calls within 3 days from the time the call for service is received. The scope of a Non-Emergency Service Call includes all efforts necessary to respond to and fix the problem. Each call is limited to a total effort not to exceed 8 man-hours of labor and a per call material cost limit of $2,500 (not to exceed $15,000 per year). On average the park estimates up to ten (10) Non-Emergency Service calls per year.

*Emergency Service calls:

The contractor shall be required to respond to calls within two (2) hours from the time of the call for until the service is received. The scope of an Emergency Service Call includes all efforts necessary to respond to and fix the problem. Each call is limited to a total effort not to exceed 8 man-hours of labor and a per call material cost limit of $1,500 (not to exceed $15,000 per year).

On average the park estimates up to 3 Emergency Serviced Calls per year.

*These emergency and non-emergency service calls will be ordered on an "as needed" basis and funding will be provided via a modification at time of order*

This scope of work comes from the manufacturers recommendation for Preventative Maintenance at a minimum, if Industry Standards dictate a higher level of service, that is what will be required.

Package Unit Air Conditioners / Chillers

Comply with the latest provisions of the Clean Air Act and EPA regulations as they apply to protection of stratospheric ozone. No intentional venting of refrigerants is permitted. Whenever refrigerant is added or removed, record the quantities on the appropriate PMS form. Recover, recycle, or reclaim the refrigerant as appropriate. If materials containing refrigerants are discarded, comply with EPA regulations as applicable. Refrigerant oils to be removed for disposal must be analyzed for hazardous waste and handled accordingly Follow all safety procedures described in MSDS for the refrigerant and all labels on the refrigerant containers.

1. Inspect exterior of the air handler.

2. Visibly check for chilled water or refrigerant leaks on lines, valves, and strainers.

3. Lubricate motor and fan bearings as required.

4. Check belt tension and condition.

5. Check filters, replace when required.

6. Check condensate pan and drain. Flush with hot water if needed.

7. Check discharge air temperature.

8. Check compressor operation.

9. Remove panels.

10. Clean drain pan.

11. Clean strainer on chilled water unit.

12. Check for refrigerant leaks.

13. Check coil pressure drop.

14. Clean coils if necessary.

15. Drain and clean humidifier pan if applicable.

16. Clean and lubricate motor and fan bearings as required.

17. Check pulley alignment.

18. Check bearings for excessive wear.

19. Check reheat coil pressure drop, clean if necessary.

Air Handlers Whenever refrigerant is added or removed, record the quantities on the appropriate form.

Recover, recycle, or reclaim the refrigerant as appropriate. If materials containing refrigerants are discarded, comply with EPA regulations as applicable. Refrigerant oils to be removed for disposal must be analyzed for hazardous waste and handled accordingly Closely follow all safety procedures described in the (MSDS) for the refrigerant and all labels on the refrigerant containers

1. Thoroughly inspect exterior of the air handler.

2. Visibly check for chilled water or refrigerant leaks on lines, valves, and strainers.

3. Lubricate motor and fan bearings as required.

4. Check belt tension and condition.

5. Check filters, replace when required

6. Check discharge air temperature.

7. Clean drain pan.

8. Clean strainer on chilled water unit if applicable.

9. Check for refrigerant leaks if applicable.

10. Check coil pressure drop.

11. Clean coils as necessary.

12. Drain and clean humidifier pan if applicable.

13. Clean and lubricate motor and fan bearings as required.

14. Check pulley alignment.

15. Check bearings for excessive wear.

16. Check reheat coil pressure drop, clean if necessary.

17. Grease bearings, adjust fan‐belt tension, inspect condition of belts, lubricate motor.

Condensers, Air-Cooled De‐energize, lock out, and tag electrical circuits. Whenever refrigerant is added or removed from equipment, record the quantities on the appropriate forms. Recover, recycle, or reclaim the refrigerant as appropriate. If disposal of the equipment item as required, follow regulations of removal of refrigerants & disposal of the equipment. If materials containing refrigerants are discarded, comply with EPA regulations as applicable. Refrigerant oils to be removed for disposal must be analyzed for hazardous waste and handled accordingly. Closely follow all safety procedures described in the (MSDS) for the refrigerant and all labels on refrigerant containers.

1. Thoroughly inspect exterior of the unit.

2. Inspect the coils for cleanliness, brush if necessary.

3. Visibly inspect for refrigerant or oil leaks.

4. Lubricate fan, and motor bearings as required.

5. Check entering and leaving discharge air on condenser.

6. Check liquid line for sub‐cooling.

7. Check unit for excessive noise or vibration.

8. Pressure‐wash coil with coil cleaning solution.

9. Straighten fin tubes with fin comb as necessary.

10. Check electrical connections for tightness.

11. Check mounting for tightness.

12. Check fan blades.

13. Clean fan blades when necessary.

14. Check wires at condenser electrical fused safety switches for tightness and burned insulation. Repair as necessary.

Circulating Water Pumps Perform a visual inspection of the pump shaft, bearings, couplings and packing.

1. Adjust packing as required.

2. Lubricate motor bearings at least twice per year.

3. Check the amp draws.

4. Check for proper operating temperatures and pressures.

5. Look for any sign of leaks on flanges, gauges, trim fittings, etc.

6. Note if there is any unusual noise or vibration.

7. Check shaft seal for leakage.

8. On packed seals, check for proper drip rate Inspect and check all starter and motor connections for tightness and signs of overheating, contact pitting.

Heating Fan Coil & Unit Ventilators

1. Inspections per year, per schedule.

2. Regularly and systematically inspect the equipment.

3. Grease bearings, lubricate motor, inspect coils and clean, if necessary.

4. Once per year, inspect the unit casing and accessories for paint chipping or corrosion.

5. Clean fan wheels, hot water coil and fan shaft.

6. Inspect the drain pan for sludge or other foreign material and clear condensate drain line.

7. Check damper linkage, set screws and blade adjustments for proper operation.

8. Check air‐pressure drop across coil.

9. Vacuum or brush the coil face; if additional cleaning is necessary.

10. Remove obstructions to air flow.

11. Inspect coil, report any leaks.

12. Test and inspect controls that protect coils against freezing.

6. Barriers

• Furnish, install, and maintain barriers to protect existing facilities and to protect public visitors and staff from all operations while conducting this work. Completely remove all barriers after work is completed

• Keep project area neat, orderly and in a sage condition at all times.

• Do not interfere with public visitation.

• Meet all OSHA standards.

The job will be shut down immediately if any unsafe practices are observed and work may not be resumed until conditions are corrected to satisfaction of CO.

7. QUALITY ASSURANCE REQUIREMENT:

The COR may join the technician at any time to conduct quality control checks. Contractor will complete an accurate data record and will be evaluated periodically during the contract and at the contracts annual completion date. Contractor shall provide a Quality Assurance Plan to the

COR.

8. CLOSE OUT:

Written annual certification shall be documented that all systems are performing to manufacturer’s specifications. Contractor will provide this documentation to the Contracting Officers Technical Representative (COTR) no later than 7 days after the inspection or the correction of any deficiency.