Annex K - Heating Cooling Services (501).docx

Annex K - Heating and Cooling Services (501) (U)

Annex K Heating and Cooling Services (501)

Annex K – Heating and Cooling Services (501) (U)

TABLE OF CONTENTS

GENERAL INFORMATION

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.

Air Pollution Regulations . The Contractor shall operate all heating plants in compliance with all Federal, State, 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).

DESCRIPTION OF SERVICES

Scope . The Contractor shall operate all heating plants and systems used in the production of heat. Major components and all other heating plants and equipment are listed in Technical Exhibit (TE) 33 – Equipment List.

Heating and Boiler Plant Staffing . The Contractor shall establish a separate, dedicated maintenance team to maintain, operate, repair, install, inspect, remove, and modify equipment and systems at all heating and boiler plants. The Contractor shall provide a dedicated operator at each plant twenty-four hours a day. That individual shall have no other duties. The Contractor shall have all supervisors, operators, mechanics, and personnel performing the operations, repair, maintenance, modification, and installation work on heated pressure vessels, i.e., high and low pressure heating hot water boilers, steam boilers and other heated pressure vessels. The Contractor shall have journeyman level experience in the class of work for which employed and shall be certified as a Boiler Operator/Technician to the National Institute for the Uniform Licensing of Power Engineers (NIULPE), 4th class certification level in accordance with (IAW) Army Regulation (AR) 420-1 – Army Facilities Management.

Operation of Heating Plants . The Contractor shall operate the steam/hot water heating plants listed in TE 33 – Equipment List IAW Army Regulations (ARs), manufacturer recommendations, Arizona Boiler Commission, NEC, ASHRAE, OSHA, EPA, NFPA, National Fuel Gas, CFR 92, CFR 49, ANSI, ASME and National Plumbing codes and regulations and standards. Operation of these plants includes start-up and shutdown of heating equipment; operator maintenance and inspection. Operation also includes keeping required logs, correction of improper operating conditions, making minor adjustments to the plants and equipment, and operating and maintaining water softeners.

Operating logs maintained on these plants shall be submitted to the COR/ACOR by the 10th of each month for the preceding month. When required, the operator shall employ lead/lag procedures in the central plants, based on temperatures and conditions.

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 or when directed by the COR/ACOR. The Contractor shall submit a written schedule of summer boiler shutdowns to the COR/ACOR 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.

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 the manufacturer’s guidelines and Technical Manual ™ 5-650 – Central Boiler Plants, when deactivating boilers.

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 evidence of large or small leaks from steam or hot water equipment, emissions, pipes, valves, and covers. The Contractor shall submit a report summarizing the results of all inspections performed each month to the COR/ACOR NLT the third (3rd) business day of the following month. However, any defects identified by the Contractor shall be submitted in writing to the COR/ACOR on the same workday.

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.

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

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 certified lab, at Contractor expense. Analysis, results, and comments will be sent to the Contractor. 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. Contractor shall furnish required boiler plant water test kits and test material.

Prepare Boilers and Coordinate Boiler Inspections . The Contractor shall schedule and prepare boilers for the boiler inspections required by AR 420-1 – Army Facilities Management. Preparation of boilers for inspection shall be IAW TM 5-650. The Contractor shall post a copy of the most recent Boiler Inspection Report in the plant where each inspected boiler is located.

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 always 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).

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.

AC AND REFRIGERATION PLANTS AND SYSTEMS

Scope . The AC plants and systems include central systems for multi-building cooling. TE 33 – Equipment List identifies the plant inventory.

Daily Inspection of Chillers . The Contractor shall perform daily inspections of all chiller units listed in TE 33 – Equipment List.

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.

· Chiller MCD number

· Purifier purge monitor and start-up number

· Chiller supply and return water temperature

· Compressor suction and discharge pressure and MCD number

· Refrigerant temperature in the evaporator

· Branch line control pressure

· Evaporator pressure

· Measure and record pressure drop through the condenser

· Oil pressure

· Condenser in and out water temperature

· Oil temperature in bearings

· Oil temperature in sump

· Oil pump motor amperage

· Outdoor temperature and relative humidity

· Any abnormalities occurring in the operation of the unit

Additional information can be found in Annex H – Facilities Maintenance (411), TE 27, and TE 28.

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