Attachment 1 - Draft Performance Work Statement REQUIREMENTS-25-2278.pdf

Preventive Maintenance for Chiller and Cooling Towers Performance Work Statement

REQUIREMENTS-25-2278

I. Introduction

The Department of Commerce’s (DOC) Geophysical Fluid Dynamics Laboratory (GFDL), located on Princeton University’s Forrestal Campus at 201 Forrestal Road, Princeton, NJ 08540, requires a service agreement for maintenance of three (3) York chillers and four (4) corresponding Baltimore Aircoil Company, Inc. cooling towers.

The service and equipment needed are described below.

The equipment to be maintained is as follows:

Chillers (all are York)

Name Type Model # Serial # Year Inst-alled

Tons Location

MB=Main Building;

CB=Computer Building

CHLR-1 Centrifugal (Max-E) YKERETQ6-CLG 035‐22882‐00

0 2010 400 MB Mechanical Rm 2

CHLR-

Centrifuga l YKMCMCG4-CMC GHEM272928 1996 350 MB Mechanical Rm 2

CHLR-

4 Screw YRTDTDT1-46CS SBRM-094400 2006 250 CB Mechanical Rm 3

Table 1.1

Cooling Towers (all are Baltimore Aircoil Company, Inc.)

Name Model # Serial # Assoc.

Chiller

Year Inst-alled

Tons Location

CT-1A VT1209-0 V150037401-01-01 1 2000 200 MB Mechanical Courtyard CT-1B VT1209-0 V150037402-01-01 1 2000 200 MB Mechanical Courtyard CT-3 VT1-N346RMR V001141501 3 1996 350 MB Mechanical Courtyard

CT-4 VT1N255 U040383201 4 2004 225 CB South Mechanical Penthouse

Table 1.2

II. Preventative Maintenance

The contractor shall perform monthly operating inspections of all equipment as well as annual preventative maintenance and inspection, including startup or shutdown as required by building operation schedule. Annual preventative maintenance and inspection shall be performed during the winter months with specific dates coordinated with the Government technical representative or COR.

The contractor shall provide a detailed report of each inspection to the Government technical representative and COR. The report will include equipment log readings taken during inspection, condition of equipment, recommended repairs, and recommendations in reducing energy consumption, where applicable.

The annual and monthly inspection and service schedule shall be coordinated with the government technical representative or, in his absence, with the COR.

A. Chillers The contractor shall perform the following preventative service as necessary and applicable, in the best judgment of the servicer and with the concurrence of the Government technical representative, to keep the Chillers operating properly and with optimum efficiency. A report of service provided for each covered piece of equipment shall be submitted to the Government technical representative and COR within 14 days of completion of each service monthly and annually.

DRAFT

1. Operating inspection (Monthly):

The contractor shall perform monthly inspection of the following items to ensure the units operate reliably and efficiently:

a) Check for proper refrigerant charge and oil level(s) to ensure optimum performance.

b) Check conditions and settings of panel controls, operating controls, safety controls, thermometers, and gauges to ensure optimum performance and reliability.

c) Determine level of heat exchange tube fouling from analysis of available log reading or readings taken during inspection.

d) Lubricate all moving parts.

e) Verify proper equipment operation through analysis of available log readings or readings taken during inspection.

f) Check compressor oil, replace oil filters, refrigerant filters and filter driers, as required by original equipment manufacturer’s (OEM) recommendations or condition upon inspection, whichever is earlier.

g) Check for refrigerant leaks, repair leaks, and replace refrigerant lost to ensure optimum performance.

2. Preventative maintenance and inspection (Annual):

The contractor shall perform one (1) annual preventative maintenance and inspection of the following items to ensure the units operate reliably and efficiently:

a) Drop one condenser head, conduct annual visual inspection of condenser tubes; Repeat for each chiller.

b) Mechanically brush clean condenser tubes for each chiller once per year.

c) Provide annual chemical analysis and report on compressor oil.

d) Conduct annual meg-ohm stator test on all compressor motors and check motor lugs for tightness.

e) Inspect the starter, check all lugs for tightness and test all safety and operating controls.

Note 1: During the base period of performance (08/2025-08/2026), the condenser and evaporator tubes for each of the three chillers shall be Eddy Current tested and mechanically brush cleaned.

Note 2: During the second option period of performance (08/2027-08/2028), the condenser tubes only of each of the three chillers shall be Eddy Current tested and mechanically brush cleaned.

Chillers Corrective Maintenance and Service Repairs (excludes Cooling Towers), including Parts, Supplies, Materials, Lubricants, and Labor

The contractor shall furnish all necessary maintenance and service repair parts, supplies, materials, and lubricants required to keep the chiller equipment in proper operating condition inclusive of all necessary labor to install repair parts and make necessary adjustments to keep the chiller equipment operating efficiently.

Refrigerant in any quantity and Cooling Tower Corrective Maintenance and Service are excluded from this Work and is chargeable to the Government.

B. Cooling Towers The contractor shall perform the following preventative service as necessary and applicable to maintain the Cooling Towers operating with optimum efficiency and in accordance with the original design intent and OEM recommended specifications. Ongoing maintenance information will be available for reference. A report of service provided for each covered piece of equipment shall be submitted to the Government technical representative and COR within 14 days of completion of each service monthly and annually.

1. Operating inspection (Monthly):

The contractor shall perform monthly inspection of the following items to ensure the units operate reliably and efficiently:

a) Check for general condition and operation

b) Clean debris from unit

c) Check and adjusting sump water level

d) Inspect heat transfer section and reporting on condition

e) Inspect spray nozzles or water distribution pans

f) Check and adjust fan belt position

g) Check unit for unusual noise or vibration

h) Lubricate fan shaft bearing

2. Preventative maintenance and inspection (Annual):

The contractor shall perform one (1) annual preventative maintenance and inspection of the following items to ensure the units operate reliably and efficiently:

a) Check for general condition and operation

b) Check drift eliminators, louvers, fill, spray nozzles and baffles

c) Thoroughly clean and de-scale the tower housing and components

d) Clean debris from unit

e) Clean and flushing sump

f) Clean sump strainer

g) Check fan bearing locking collars

h) Check motor voltage and current

i) Lubricate motor base adjusting screw

j) Lubricate fan shaft bearings

k) Change belts once a year

l) Verify heater and heat tracing operation if tower remains online throughout the year

m) Check and lubricate motor bearing

n) Caulk and seal of cooling tower seams as needed

o) Properly evaluate the equipment condition and make recommendations to enhance its operating efficiency and reliability

p) Provide a service report illustrating condition and useful life expectancy

III. Emergency and Special Services

A. Emergency Service

1. Emergency Service shall be furnished between inspections.

2. The contractor shall respond to emergency service calls within two (2) hours of notification by the

Government’s designated technical representative or the COR 24 hours a day every day of the year.

3. This service shall be available for the purpose of making any and all necessary repairs and/or adjustments to return the equipment operation.

B. Emergency Service Pricing

1. Emergency Service pricing shall be at the labor rates in Section B of the task order. Prices for parts, supplies, materials, lubricants, and refrigerant will be negotiated for each emergency service.

2. A 24-hour-per-day, 7-days-per-week emergency contact must be available

IV. Special Conditions

Working Hours

1. The contractor shall perform all inspections and maintenance during normal working hours. Normal working hours are Federal government workdays between the hours of 6:30 AM and 3:00 PM.

2. Work performed under the category of Emergency Services shall be provided within two (2) hours of contractor notification, regardless of the hour or day of the year.

Personnel

Services shall be performed by York/Johnson Controls factory trained personnel who are certified to work on the covered chiller equipment and are otherwise specialists in HVAC, Refrigeration and Electronic system maintenance and service.

V. PERFORMANCE REQUIREMENTS SUMMARY

Feedback indicating overall quality and satisfaction will be obtained periodically. See below for individual requirements:

PERFORMANCE REQUIREMENTS SUMMARY

Reference Performance

Objective Performance Indicator

Acceptable Quality

Surveillance Method

Incentive/ Disincentive

1. Monthly chiller and cooling tower operating inspection

Monthly interval should be no more than 30 days from the previous monthly operating inspection.

Prepare and submit report of service provided under Section II, A.1. & B.1. within 14 days after completion of work.

Timely completion of required work and submittal of a high-quality report of all elements of the service provided.

Submitted timely with Government clarifications or corrections responded to in 3 business days.

Less than 2 errors per report.

100% technical representative inspection and acceptance.

Past Performance Reports, Exercise of Options, and Contractual remedies FAR 52.246-4

2. Annual chiller and cooling tower preventative maintenance and inspection

Annual inspection should be scheduled and completed no later than 30 Apr.

Prepare and submit report of service provided under Section II, A.2. & B.2. within 14 days after completion of work.

Timely Submittal.

High quality report information and reasonable representative photos that identify all needed repair

Submitted timely with Government clarifications or corrections responded to in 3 business days.

Less than 2 errors per report.

100% technical representative inspection and acceptance.

Past Performance Reports, Exercise of Options, and Contractual remedies FAR 52.246-4

3. Emergency and special service

Respond to emergency calls within 2-hours.

Timely response by qualified service technician

Timely response in accordance with requirement

100% inspection and acceptance by technical representative or COR.

Past Performance Reports, Exercise of Options, and Contractual remedies FAR 52.246-4