AMD_0002_(Final),_Attachment_8_CLS_501_Heating_Cooling_Services_19JUL19.docx

Attachment 8 CLS 501 Heating Cooling Services

Attachment 8 (CLS 501 Heating/Cooling Services)

10 July 2019 (Amendment 0002) ii

Table of Contents

1.0 General Information.

1.1 Overview. Heating and Cooling Services provide steam, hot water, chilled water for heating, cooling, domestic hot water, and facility processes using Government-owned central heating and cooling plants, and distribution systems. Operating Government-owned central heating and cooling plants; and distribution systems includes all contract costs associated with full operation and maintenance (O&M) staff, oversight of contracted plant (other than a Utilities Privatization Contractor), O&M, periodic regulatory inspections and certifications, purchase of fuels (coal, natural gas, fuel oil, etc.), storage of fuels; maintenance, inspection, and certification of fuel storage facilities; periodic operators training and certification, supervision and administration tasks, and purchase of chemicals and supplies.

1.2 Air Pollution Regulations. The Contractor shall operate all heating plants in compliance with all Federal, State, Environmental Permits, and local air pollution regulations. The Contractor shall address all non-compliance issues immediately to the Contracting Officer’s Representative (COR) or Alternate Contracting Officer’s Representative (ACOR).

2.0 Description of Services.

2.1 Scope. The Contractor shall operate all heating plants and systems (steam meters, automatic tank monitoring system, boilers, and furnaces) used in the production of domestic heat (including the provision of unscheduled services) as directed by the COR/ACOR. Major components and all other heating plants and equipment are listed in Technical Exhibit’s (TE) E-8 and E-9.

2.1.1 Fort Stewart: The Central Energy Plant (CEP), located at Bldg. 1412, operates year round and is continuously manned. It contains a total of three (3) boilers, two (2) are natural gas fired boilers and one (1) is a wood fired boiler. The two (2) natural gas boilers are rated at 55.3 MMBtu/hr of input each and the wood fired boiler is rated at 24 MMBtu/hr. All boilers are connected to a common steam header that can provide up to 175 psig saturated steam to three (3) cascade heaters at the CEP. Each cascade heater is rated at 60 MMBtu (180 total) and produces high temperature hot water to provide heat and domestic hot water to Winn Army Hospital (which is currently valved off and to be turned back on at the request of the government), mess halls, clinics, barracks, gyms, administrative buildings and various other facilities. The plant also contains three (3) electrical driven centrifugal chillers rated at 1500 tons each and one (1) electrical driven centrifugal chiller rated at 1200 tons. Total chiller capacity is 5700 tons. Each chiller has a dedicated cooling tower and all chillers are connected to a common header which provides air conditioning for the above mentioned facilities and is a backup to the WINN Army Hospital.

The base load demand on steam requirements (no heating or cooling demand) is approximately 250,000 pounds per day. Load demand during cooling season averages 515,000 pounds per day and can peak at around 840,000 pounds per day. A list of facilities receiving heat and air conditioning from the CEP is contained in TE E-8.

Note: Removed the requirement that the government is going to a low temperature plant at FS and getting rid of steam production.

The CEP supplies chilled water at 43-47 degrees F to Winn Army Hospital (only as a backup when requested by the government), mess halls, dental clinics, chapels and various other facilities. The base load on the cooling system is approximately 700 tons. The system averages 4,000 tons during the summer and can peak at 5,700 tons.

The FS CEP is designed to produce between 50 and 175 psi. The Contractor shall operate the FS CEP loop between 250-350 degrees F. The COR will determine the appropriate set points and provide to the Contractor, in writing, when they change. The Contractor will have 24 hours to meet the new requirement within plus or minus 15 degrees F or within the time constraints mentioned by the COR. The Contractor shall notify the COR within one (1) hour when it goes out of tolerance.

2.1.2 Hunter Army Airfield: The CEP located at Bldg. 1323 is in operation seven (7) days a week and is unmanned. The plant contains three (3) boilers, two (2) are natural gas fired boilers each with an output of 311kW per hour (1.06MMBtu/hr) and one (1) is a biomass boiler with an output of 150kW (.51MMBtu/hr). The plant also contains one (1) 300 ton electric centrifugal VFD chiller and one (1) 400 ton electric centrifugal VFD chiller. There are also four (4) steam boiler plants and one (1) chiller plant which are operated year-round by a roving patrol when the plants are in operation. In addition, there are numerous outlying boiler plants, which are operated as needed. One (1) chiller plant is operated by a roving operator. A list of heating and cooling facilities is contained in TE E-9.

The HAAF CEP is designed to operate at a limit of 200 degrees F. The COR will determine the appropriate set points and provide to the Contractor, in writing, when they change. The Contractor will have 24 hours to meet the new requirement within plus or minus five (5) degrees F. The Base Temperature without COR guidance is 165 degrees F. The Contractor shall notify the COR within one (1) hour when it goes out of tolerance.

2.2 Heating and Boiler Plant Staffing. The Contractor shall provide boiler operators who are properly certified in conformance with all applicable Federal, State, and local laws and regulations.

2.3 Operation of Heating Plants. The Contractor shall operate the steam/hot water heating plants listed in TE’s E-8 and E-9 in accordance with (IAW) AR 420-49. Operation of these plants includes start-up and shutdown of heating equipment; operator maintenance and inspection (maintenance required to operate heating plants on a daily basis; e.g., during operational visits ensure the plant is operating properly). Operation also includes keeping required logs, correction of improper operating conditions, and making minor adjustments to the plant and equipment.

Operating logs (including watch clock disks or tapes) maintained on these plants shall be submitted to the COR/ACOR by the 5th business day of each month for the preceding month. The Contractor shall submit the Cumulative Steaming Hours Report for each boiler to the COR/ACOR on Monday of each week for the preceding week. The operator shall employ lead/lag procedures in the CEP’s when required, based on temperatures and conditions.

2.3.1 Unattended Heating Plants. The Contractor shall operate all unattended heating plants listed in TE E-8 and E-9. Operation of these plants shall include seasonal start- up and shut down of heating equipment.

2.3.1.1 The Contractor shall visit the unmanned boiler plants listed IAW TE’s E-8 and E-9. Operational visits of the unmanned boiler plants shall include observation of a complete cycle of the operation of the plant when permissible (depending on load and lockouts) and shall be recorded on the DA Form 3995, Daily Operating Log. Submit the Daily Operating Log to the KO or COR each month NLT the fifth (5th) business day.

2.4 Central Boiler Plants. The central boiler plants are located at FS in Bldg. 1412 and HAAF in Bldg. 1323. The major components of each of the boiler plants are listed in TE E-8 and E-9.

2.4.1 The Contractor shall operate, inspect, maintain, and repair all heating plants, wood conveying and monitoring systems, and associated equipment. M&R of central boiler plants shall include, but not limited to; steam and hot water heating sources, fuel storage, and handling equipment at the boiler plants, feed water, condensing flue gas and air system equipment, miscellaneous pumps and plant instrumentation. M&R performed by the Contractor shall be accomplished so equipment condition will remain unchanged from the time of receipt. The quality of work accomplished shall meet the various manufacturer's requirements for individual equipment items as stated in the operations and maintenance manuals.

2.4.2 The Contractor shall accomplish all boiler, maintenance, repair, and inspections IAW applicable ASME Boiler and Pressure Vessel Code issued by the National Board of Boiler and Pressure Vessel Inspectors (NBBI); NFPA 31 Standard for Installation of Oil Burning Equipment; NFPA 54 National Fuel Gas Code; NFPA 58; NFPA 211 Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances; AR 420-1 Army Facilities Management; National Institute for the Uniform Licensing of Power Engineers, Inc. (NIULPE) Certification; UFC 3-430-07 Operations and Maintenance: Inspections and Certification of Boilers and Unfired Pressure Vessels; ASME CSD-1-2009 Controls and Safety Devices for Automatically Fired Boilers; TM 5-650 Central Boiler Plants; National Board Inspection Code (NBIC) Parts 1, 2 and 3; and manufacturer’s instructions; individual boiler work instructions located with each boiler and documents contained in PWS Section 7.

2.5 Summer Overhaul. The Contractor shall schedule summer overhauls for boiler plants that cannot be overhauled during the heating season because of operational requirements. The Contractor shall perform shutdowns over weekends and holidays when required by the COR/ACOR. The Contractor shall submit a written schedule of summer boiler shutdowns to the Contracting Officer (KO) for approval at least thirty (30) calendar days prior to the beginning of the proposed shutdown period. The approved shutdown schedule shall have minimal disruptions.

2.6 Idle Standby Boilers. All boilers not in use shall be maintained in a fully operational condition, except when deactivated. In the event that any boiler cannot be placed on-line within two (2) hours, a notification that includes the probable cause shall be submitted to the COR/ACOR. Proper lay-up procedures shall be used IAW Technical Manual (TM) 5-650, Repairs and Utilities: Central Boiler Plants, when deactivating boilers.

2.7 Monthly Inspections. The Contractor shall perform monthly visual inspections of the central steam and hot water distribution and condensation systems. The inspection shall include, but not be limited to, general condition and cleanliness of all exterior and working parts, and evidences of large or small leaks from steam or hot water equipment, emissions, pipes, valves, and covers. The Contractor shall submit a report outlining the results of the inspection to the COR/ACOR within three (3) working days. However, any defects identified by the Contractor shall be submitted in writing to the COR/ACOR on the same work day.

2.7.1 The Contractor shall maintain a Monthly Repair and Utilities Operating Log. The forms shall be locally generated to fit the requirement. Submit to the COR as requested.

2.8 Boiler/Heat Plant Shutdowns. The Contractor shall inform the COR/ACOR within thirty (30) minutes of shutting down any boiler or heating plant for unplanned repairs. The Contractor shall provide written notice thirty (30) calendar days in advance of planned repairs that require the shutdown of any boiler or heat plant, unless shutdown is otherwise requested by the COR/ACOR.

2.9 Boiler Water Treatment Chemicals. The Contractor shall supply the chemicals necessary to maintain all boiler water chemistry IAW TM 5-650.

2.10 Boiler Water Test Samples. In addition to the required boiler and distribution system water testing and treatment, the Contractor shall submit monthly, a series of boiler plant water samples to a Government approved lab as directed by the COR/ACOR. Analysis, results, and comments will be sent to the Contractor. The Contractor shall pay the costs for submission and lab analysis of these samples. The Contractor shall pay lab analysis costs directly to the Government approved lab. The water samples submitted each month shall include a boiler water sample, a condensate sample, and the Contractor plant test results for these samples. Test results and water samples from one (1) boiler/condensate system are required from each of the high-pressure boiler plants operated for the Government.

Additional tests may be required if the Contractor's test results and the lab's test results vary by ten (10) percent. Additional tests shall be at the Contractor’s expense. The Contractor shall provide copies of Lab Water Analysis Reports to the COR/ACOR within five (5) days after receipt. The Contractor shall furnish required boiler plant water test kits and test material.

2.11 Prepare Boilers and Coordinate Boiler Inspections. The Contractor shall schedule and prepare high-pressure boilers for the boiler inspections required by AR 420-49, Section VII. Preparation of boilers for inspection shall be IAW TM 5-650, Chapter 3, paragraph 65. The Contractor shall provide to the COR/ACOR in writing, a proposed schedule of high-pressure boiler inspections. The Contractor shall post a copy of the most recent Boiler Inspection Report in the plant where each inspected boiler is located.

2.12 Boiler Plant Calibration. Prior to annual boiler inspections, the Contractor shall calibrate all pressure and temperature gauges. A self-adhesive seal shall be attached on each gauge certifying that it has been calibrated. The date of the calibration and the initials of the person performing the calibration shall be noted on the sticker. The gauges shall be calibrated over the full operational range and accuracy tested for compliance with the manufacturer's published data. The gauges shall be calibrated against standard dead weight tester or a calibrated master gauge. In addition to the normal annual calibration, the Contractor shall at all times recalibrate any gauge that is suspected of being in error. All tests shall be IAW the applicable provisions of the American Society of Mechanical Engineers (ASME).

2.13 Emergencies. Operational emergencies which reduce the steam rate by ten (10) percent or boiler pressure by twenty (20) percent, for a period exceeding thirty (30) minutes, shall be reported by the Contractor within thirty (30) minutes of occurrence to the COR/ACOR. Such emergencies include, but are not limited to, ruptured tubes, loss of boilers, and loss of power. The Contractor shall report operational emergencies together with identification of the probable cause and the estimated time required before full pressure and steam rate can be restored.

2.14 Operational Considerations. The following considerations apply to all-heating plants and systems covered under this contract.

2.14.1 The Contractor shall accomplish all boiler maintenance, repair, and inspections IAW applicable ASME Boiler and Pressure Vessel Code issued by the National Board of Boiler and Pressure Vessel Inspectors (NBBI); NFPA 31 Standard for Installation of Oil Burning Equipment; NFPA 54 National Fuel Gas Code; NFPA 58; NFPA 211 Standard for Chimneys, Fireplaces, Vents, and Solid Fuel Burning Appliances; AR 420-1 Army Facilities Management; National Institute for the Uniform Licensing of Power Engineers, Inc. (NIULPE) Certification; UFC 3-430-07 Operations and Maintenance: Inspections and Certification of Boilers and Unfired Pressure Vessels; ASME CSD-1-2009 Controls and Safety Devices for Automatically Fired Boilers; TM 5-650 Central Boiler Plants; National Board Inspection Code (NBIC) Parts 1, 2 and 3; and manufacturer’s instructions; individual boiler work instructions located with each boiler and documents contained in the PWS Section 7.

2.14.2 The Contractor shall operate the wood fired boilers as the primary boilers and operate the natural gas boilers as required to meet load and during breakdown maintenance of the wood fired boilers.

2.14.3 The Contractor shall serve as an Official Weather Observer for the U.S. Department of Commerce and provide the weather report to the COR/ACOR NLT the third (3rd) working day of the month.

2.14.3.1 The Contractor shall read the digital thermometer at the FS CEP and record daily maximum and minimum temperatures, temperature at time of observation and rainfall for the past 24 hours on WS Form B-91, Monthly Report.

2.14.3.2 The Contractor shall furnish the monthly report to the COR by the third (3rd) working day of the following month.

3.0 Purchase of Fuels.

3.1 Fuel Oil. Not Applicable.

3.2 Natural Gas Distribution System. Not Applicable.

3.3 Other Fuels. Not Applicable.

4.0 AC and Refrigeration Plants and Systems.

4.1 Scope. The AC plants and systems include central systems for multi-building cooling as well as independent systems for single building or partial building cooling The FS/HAAF CEP’s contain at least one (1) chiller that is operational year round. The remaining chillers at the FS/HAAF CEP’s are operational at the discretion of the DPW.

4.1.1 The Contractor shall operate, inspect, repair and maintain the CEP’s FS (Bldg. 1412) and HAAF (Bldg. 1323), four (4) cooling towers at FS CEP, six (6) cooling towers at FS 2BCT (8400 block), and three (3) cooling towers at HAAF IAW AR 420 1, applicable ASME standards, manufacturer’s specifications, and as specified herein. M&R of chiller plants shall include but not be limited to; grease and oil of pumps, motors, fans and tightening of belts on fans, as well as associated appurtenances necessary to generate and deliver chill water to facilities external to the chiller plant buildings. The quality of work accomplished shall meet manufacturers’ specifications for individual equipment items as stated in the O&M manuals at each plant location.

4.1.2 The Contractor shall operate chillers, cooling towers, condenser water pumps, and chemical pumps at the CEPs and chiller plants, as loads demand, to produce and supply chilled water between 43 and 47 degrees for climate control of installation facilities and are cycled equally throughout the cooling season or as directed by the KO or COR.

4.1.3 The Contractor shall notify KO or COR within 30 minutes of the shutting down of chillers or cooling plants for unplanned repairs. Additionally, the Contractor shall provide 24 hours written advance notice of the shutdown of chillers or cooling plants for planned repairs, unless otherwise requested by the KO or COR.

4.2 Daily Inspection of Chillers. The Contractor shall perform daily inspections of all chiller units.

4.2.1 Daily Log. The Contractor shall observe the complete cycle of the mechanical operation of the chiller plant and cooling tower, and report any problems to the COR/ACOR immediately. The Contractor shall provide and maintain a daily log that includes, but is not limited to, the data listed below.