Statement of Work Chiller Mainteance May 20.pdf

Statement of Work for the NIH/RML Chiller Maintenance & Repair Services

Dated: May 2020

Maintenance services for multiple chillers, cooling towers, variable frequency drives, dry coolers, primary chilled water/condenser water pumping systems in multiple locations.

Maintenance services is for critical facilities and should any systems require to be taken offline, this must be coordinated with the Contracting Officer & Project Officer. Any shut down and startup of the campus cooling towers will be done as weather dictates to allowing cooling for facilities as needed and shall be coordinated with the Contracting Officer & Project Officer.

The Contractor shall respond to all mechanical failures of the systems within 6 hours of notification by the Contracting Officer or Project Officer. The Contractor will work with the Project Officer or other ORF-DFOM Maintenance personnel to keep the systems operating with minor responses accomplished by ORF-DFOM personnel onsite.

Chillers:

• 800 Ton Centrifugal Chiller Trane CVHF760 Serial L16M06081

• 700 Ton Centrifugal Chiller Trane CVHF077 Serial L05E2479

• 240 Ton Air Cooled Screw Trane RTAE 250F Serial U16M06718

• 90 Ton Air Cooled Scroll Trane CGAM090F2 Serial U17D61310

• 1000 Ton Centrifugal Chiller McQuay WDC 087MA Serial STNU 0802 00135

• 1000 Ton Centrifugal Chiller McQuay WDC 087MA Serial STNU 0802 00168

• 210 Ton McQuay Reciprocating Chiller McQuay WHR210ES ER10 Serial

STNU040800018

• 210 Ton McQuay Condensing unit

• Dry Cooler Aqua Vent AVG-090.1D/2x5 Serial J-6580

Cooling Towers:

• Evapco LSTA10185 Serial 4116070

• Evapco LSTA10185 Serial 4116071

• Evapco AT212228 Serial 4110328

• BAC S3E-1020-07.M-2/W Serial U175046303-01-01

Pump Equipment includes multiple sizes of TACO pumps. Maintenance aside from manufacturers recommendations also includes maintaining primary loop pumps only.

Variable Frequency Drives for pumps are various generations of Danfoss VLT.

Chemical Treatment will be provided by NIH/ORF-DFOM including our ORF-DFOM chemical contractor (Garratt-Callahan) monthly checks during cooling season.

PERFORMANCE REQUIREMENTS. Contractor's performance shall include, but not limited to, the following when performing chiller maintenance:

• Perform preventative maintenance per the manufacturer's guidelines.

• Remove and dispose of all trash and oil from floors, roofs and work areas when job is completed for the day.

• Provide appropriate off-site disposal of used consumables and trash; report any observed equipment deficiencies to the Project Officer and Contracting Officer the same day they have been observed.

• Technical services and maintenance will be done by qualified mechanics, any work outside maintenance contractor’s abilities will be contracted to a factory authorized technician.

QUARTERLY MAINTENANCE. Contractor shall provide all required labor, tools, and consumable materials to complete scheduled maintenance tasks as per manufacturer recommendation which if applicable shall include, but not be limited to:

• Log Chillers

• Review of purge report

• Check operation

• Maintain cooling towers and pumps as needed

• Monitor and clean all strainers and suction diffusers as needed

• Check operation and condition of all equipment

• Clean condenser coils

ANNUAL MAINTENANCE. Contractor shall provide all required labor, tools, and consumable materials to complete scheduled maintenance tasks as per manufacturer recommendation which if applicable shall include, but not be limited to all quarterly tasks and the following:

• Review of diagnostics

• Conduct refrigerant leak check

• Oil level and temperature check

• Oil analysis per circuit

• Change oil filter as recommended by manufacture

• Check oil heater

• Change purge filter drier

• Lock out tag out units with potentially high or medium voltage starters

• Vane linkage and valve lubrication

• Motor bearing lubrication

• Condenser tube brushing including head removal

• Compressor starter and VFD maintenance and inspection

• Control panel electrical inspection

• Temperatures and pressure sensor calibration

• Drain rupture disc vent line

• Provide quote for any fluids or refrigerants that are required

• Manual log with electronic device

• Check chiller for unusual noise and vibration

• Verify pump alignment using laser alignment tools and coupling conditions

• Contractor shall record and report abnormal conditions and measurements taken.

• The maintenance report shall be given to the Contract Administrator.

• Contractor shall report completed buildings to the Contract Administrator on a

• Contractor supplied form to be approved by the Contract Administrator

• Review oil analysis for abnormal conditions included excess wear metals, excess moisture and acid.

Eddy current test on condenser vessels will be performed every 3 years and evaporator tested on a 3-year rotation. (Option Year 2)

Contractor's response times to an initial request for services shall include the following two types.

Non-Emergency

• Contractor's initial response shall be within 2 business days, unless otherwise agreed to by the Project Officer or the Contracting Officer. Contractor shall have a technician on site in the time frame agreed to by the Project Officer or Contracting Officer.

• Contractor will provide the Project Officer or Contracting Officer with a quote for repairs and will commence work once repairs are approved.

Emergency

• Contractor's initial response shall be within 6 hours.

• In an emergency, the Contractor may begin services upon verbal direction from the

Project Officer or Contracting Officer. Written confirmation will follow within twenty-four (24) hours of initial call. As soon as possible, Contractor shall provide the Project Officer or Contracting Officer a quote for the repairs.

Quarterly and Annual Maintenance will be coordinated with the Project Officer or Contracting Officer with a 15-day notices.

Contractor shall check in and out with the Project Officer or Contracting Officer and upon completion provide a summary list for the services performed. Contractors shall provide the following information as a minimum on the summary:

• Building number

• Chiller

• Work order number;

• Name of Contractor personnel performing the work;

• Number of hours worked;

• Itemized list of parts/material used/replaced; and

• Narrative description of what the technician found that was causing the problem and what was done to correct it.

REQUIRED QUALIFICATIONS.

• At all times during the term of the Contract the Contractor shall have qualified technicians to provide proper and expedient repairs or a qualified factory authorized contractor.

• Contractors will promote professional conduct and appearance.

• Contractors will be required to pass background check for access to the campus and facilities housing all systems and equipment.

• Service technicians must have a Universal EPA Refrigerant Certification.