Chiller_Mx_SOW.pdf

STATEMENT OF WORK

FOR

MAINTENANCE AND REPAIR OF

CHILLERS

Columbus AFB 25 April 2018

STATEMENT OF WORK

FOR

MAINTENANCE AND REPAIR OF

CHILLER SYSTEMS

1. SUMMARY OF SERVICES

The contractor shall provide all management, labor, transportation, equipment, tools, materials, and other necessary items to inspect, maintain and repair chillers at Columbus Air Force Base, Mississippi (CAFB). The chillers included under this contract are:

BLDG MAKE MODEL DESCRIPTION

268 YORK YMC2-S1231AA 350 Ton Magnetic Bearing Water Cooled Centrifugal Chiller

268 YORK YTG1A1C3-CKH 300 Ton Water Cooled Centrifugal Chiller

965 YORK YTG0A1B1-CFH 150 Ton Water Cooled Centrifugal Chiller

965 McQuay WMC150DB513R 150 Ton Magnetic Bearing Water Cooled Centrifugal Chiller

1.1. GENERAL

All inspection, testing, maintenance, and repair tasks shall be in accordance with the equipment manufacturer’s recommended procedures. The contractor shall be responsible for all maintenance and repair work up to and including the equipment service connection points (electrical power, condenser water piping, and chilled water piping). The contractor shall, at his own expense, furnish and replace defective or worn parts, plus refrigerant, oils, lubricants, as needed. Maintenance shall include periodic inspections of the system; filter changing; filter cleaning; repairs; and any other manufacturer’s recommended tasks.

1.1.1. For each chiller, the Preventive Maintenance program for this contract shall include a minimum of six inspections per year: One (1) annual startup inspection at the beginning of the peak cooling season (typically April); one (1) annual shutdown inspection at the end of the peak cooling season (typically October); and four (4) operating inspections during the year.

1.1.2. The contractor shall provide emergency repair service in addition to routine preventive maintenance and repair.

1.1.3. All work accomplished under this contract shall be done by factory trained and certified technicians.

1.2. CHILLER OPERATING SCHEDULES

1.2.1. Building 965 – typically, both chillers run April through October and only one chiller is online November through March.

1.2.2. Building 268 – typically, both chillers run April through October (he York YTG1A1C3-CKH chiller is an emergency back-up and to take the additional load during hot weather).

1.3. MAINTENANCE SCHEDULING AND REPORTS

1.3.1. The contractor and the Government Technical Representative (GTR) shall review the current inspection, test, and maintenance status of all chillers included in this contract. The contractor shall submit a planned work schedule to the Government Technical Representative for approval no later than seven (7) calendar days after contract award.

1.3.2. The contractor shall submit a documented report to the GTR on all chiller inspections, test or maintenance work, noting discrepancies, system impairments and recommendations, within seven (7) calendar days after inspection.

1.3.3. The contractor must schedule with the GTR seven (7) days in advance for the chiller maintenance unless it is an emergency.

1.3.4. The Government will provide the name and contact information of the Government technical representative upon contract award.

1.4. BASIC SERVICES

1.4.1. The contractor will provide all necessary repair work (including parts) that may be required for each unit throughout the year.

1.4.2. Maintenance: The contractor shall provide maintenance and repair services on all chillers in accordance with this SOW to include Supplemental Services of around-the-clock Emergency service 24 hours/day – 7 days/week (including Holidays) and all additional requirements identified herein. The work shall be performed by factory trained and certified technicians using standard commercial practices and the manufacturer’s recommendations. Frequency of maintenance schedule shall be in accordance with paragraph 1.1. These services include, but are not limited to:

inspecting chiller and adjusting safety controls; checking purge operations; checking controls; checking oil and refrigerant levels; checking operation of lube system;

checking oil return system; checking operation of motor and starter; replacing filters as needed; cleaning filters as needed; inspecting the service lines; recording operating conditions; checking log and reviewing chiller and system operation with operator; conducting routine maintenance as recommended and required by manufacturer; and logging and reporting repairs and parts that are required.

1.4.3. Routine Repair. After inspection of the system(s), the contractor will make repairs as necessary. The contractor shall use all manufacturers’ suggested replacement parts and labor necessary for the repairs. Parts shall meet or exceed the manufacturer’s quality standard. If routine repairs are needed they shall be made before start-up is complete at beginning of season or just after shut-down at the end of season for chillers. Repairs required during operational time of year are classified as emergency and shall be accomplished in accordance with paragraph

1.5. All repair work, including parts and labor, shall be performed at no additional cost to the Government.

1.4.4. Seasonal Start Up. The contractor shall inspect, prepare, and provide maintenance services on installed chillers in accordance with manufacturer’s recommendations and the additional requirements as follows at the start of each cooling season (typically April) to ensure system’s reliability, safety, and efficiency. These services include, but are not limited to: Pressurizing the unit and conducting a leak survey; checking refrigerant and oil levels; checking oil sump and purge oil heaters and temperatures; checking and testing all operation and safety controls; checking the starter operation; starting the chilled water pump; starting the condenser water pump and cooling tower; starting the chiller and calibrating controls; checking purge unit operation; logging operating conditions after system and unit stabilize;

reviewing operating procedures and owner’s log with operator; and checking auxiliary equipment operation.

1.4.5. Seasonal Shutdown. The contractor shall inspect, prepare and provide maintenance services on both installed chillers in accordance with manufacturer’s recommendations and the additional requirements as follows at the end of each cooling season (typically October) to ensure proper equipment evaluation and preparation for the next cooling season. These services include, but are not limited to:

1.4.5.1. Checking and performing preventative maintenance on the Compressor-

Motor Assembly including: Recording voltages; measuring and recording motor winding resistance; lubricating open motor; checking the alignment on open drive units; checking the coupling; checking the seals; and checking the inlet vane operator and linkage (lubricating where required).

1.4.5.2. Checking and performing preventative maintenance on the Compressor Oil System including: Changing oil, oil filter and dryer; conducting analysis on oil and oil filter at an independent laboratory; checking oil pump, seal and motor; cleaning dirt leg; checking heater and thermostat; and checking all other oil system components including cooler, strainer, and solenoid valve (where applicable).

1.4.5.3. Checking and performing preventative maintenance on the Motor Starter including: Running diagnostic check; cleaning contacts and recommending replacement; checking linkages; measuring motor; checking all terminals and tightening connections; checking overloads, dash pot oil and calibrating;

cleaning and replacing air filter (where required); dry running starter (or before start-up) and checking status lights.

1.4.5.4. Reviewing the Control Panel for the following: Running diagnostic check of Micro Control Panel; checking safety shutdown operation; checking all terminals and tightening connections; checking Display Data accuracy and set points.

1.4.5.5. Reviewing the Purge Unit for the following: Inspecting the operation of the unit; changing oil; cleaning filter dryer; cleaning orifice in the liquid feed line to coil; cleaning solenoid valves; cleaning purge drum, checking and cleaning float valve, replacing gaskets; checking heater operation; and checking all other components for proper condition and operation and recording pressure control set points.

1.4.5.6. Checking the Condenser for the following: Water flow; flow switch operation; removing condenser head and inspecting end sheets; and cleaning condenser water tubes. The condition and quality of the water shall be reported to the QA to evaluate the effectiveness of the water treatment system.

1.4.5.7. Checking the Cooler for the following: water flow, flow switch operation and refrigerant level.

1.4.5.8. Checking the System for the following: Conducting a leak check and identifying leak sources for repairs; adding refrigerant as required; recording condition of sight glasses; checking the refrigerant cycle to verify the proper operating balance; and checking condenser water and chilled water heat transfer.

1.4.5.9. Other items include, but are not limited to: Repairing insulation removed for inspection and maintenance procedures; cleaning equipment and surrounding area upon completion of work; consulting with the operator;

reporting deficiencies and required repairs; and providing necessary maintenance training to equipment operator.

1.5. EMERGENCY SERVICES

Emergency services are to be furnished by the contractor 24 hours per day, seven (7) days per week, 52 weeks a year including Holidays. The contractor shall perform emergency service visits to analyze, diagnose, correct, and repair the chillers covered under this contract. The contractor shall be required to be on-site within 4 hours of notification.

After troubles, deficiencies, and repairs have been corrected, the contractor’s repair technician(s) shall demonstrate the system’s operability as intended to the satisfaction of the Government Technical Representative. The repairs including parts and labor shall be performed at no additional cost to the Government.

1.6. SPECIAL REQUIREMENTS

1.6.1. ENVIRONMENTAL CONSIDERATIONS. The contractor is responsible for compliance with all Federal, state and local environmental laws and regulations.

1.6.2. Hazardous Material Submittals. According to AFI 32-7086, paragraph 2.6.9.2, all contracts involving the use of hazardous materials on an installation require the contractor to identify and report hazardous material storage and use.

1.6.2.1. Contractors shall complete an AF Form 3952, Chemical/Hazardous Material Authorization Request, authorization prior to bringing any hazardous material on Columbus AFB. The AF Form 3952 must be submitted with supporting documentation, including Material Safety Data Sheet (MSDS) to the GTR for transmittal to the Civil Engineer Hazardous Materials Management Process (HMMP) team for approval/processing.

1.6.2.2. Contractors shall provide to the GTR specific hazardous material usage data quarterly in the format provided by the HMMP.

1.6.3. Hazardous Materials/Waste.

1.6.3.1. Material Safety Data Sheets (MSDS) shall be available, on site, for all hazardous materials in accordance with 29 CFR 1910.1200, Subpart Z, paragraphs (g) (2, 3, 4, 8, 9).

1.6.3.2. Hazardous materials shall be stored and used in accordance with 29 CFR 1910.1200, Subpart Z, paragraphs (f) (5 through 11).

2. RESERVED

3. GOVERNMENT FURNISHED SERVICES

3.1.Government-Furnished Utilities. Electricity, sewage, and water will be made available where existing.

3.2.Refuse Collection. The contractor may not use on-base refuse containers for disposal of trash and debris generated by this contract. All debris generated by this contract must be hauled off base. The contractor shall participate in on-base recycling programs where appropriate.

3.3.Security Forces and Fire Protection. The Security Forces phone number is (662) 434- 7129. The Fire Department phone number is 911 (from base telephones) for fire reporting.

4. GENERAL INFORMATION

4.1.QUALITY CONTROL. The contractor shall ensure maintenance and repair of chillers are performed in accordance with established manufacturer’s recommendations and standard commercial practices. The contractor shall implement procedures to identify and prevent recurrence of defective services.

4.2.HOURS OF OPERATION. The contractor shall perform routine services required under this contract during the hours of 7:30AM to 4:15PM, Monday through Friday, except for legal Federal holidays. Typically, the operating season runs from April to October each year, however, some variations may occur.

4.2.1. Holidays. The contractor is not required to provide routine services on Federal holidays.

4.2.2. Emergency Services. The contractor is required to provide emergency services 24 hours a day, seven (7) days a week, 52 weeks a year including holidays.

4.3.SECURITY REQUIREMENTS. The contractor shall comply with all requirements and procedures IAW AFFAR 5353.242-9000, Contractor Access to Air Force Installations, and local clause CAFB 0006, Security Requirements.

4.4.SPECIAL QUALIFICATIONS

4.4.1. Technicians shall possess refrigerant training and certification per 40CFR PART

82, SUBPART F.

4.4.2. Technicians shall be factory trained and certified for the chiller equipment on this contract.

4.4.3. Furnish documentation of training and certification with bid.

4.5.DOCUMENT SUBMISSION: Any documents identified in this SOW that the contractor is required to provide will be submitted in a timely manner. Failure to submit these documents will be reported to the contracting officer for necessary contractual action.