pumps refers to sump pumps located driveway depressions loading docks some area logistics warehousing buildings



Section J, Attachment N

Exhibit N-1 – Table 1

System Definitions 
 

    1. Mechanical

# System Type System  
1.1.01 Mech.

Chilled Water

  
1.1.01.A   A. Description Production – Water chillers at *JSC consist of large central plant systems (up to 2000 tons) and individual packaged systems serving specific selected facilities.  The central plants, buildings 24 and 28, provide chilled water internally and through the utility tunnel or direct buried to the mall buildings for use as HVAC or process cooling.  The emergency power building, building 48 provides chilled water internally and through the utility tunnel to the Mission Control Center (MCC) buildings (30L, 30M and 30S) to be used in HVAC cooling.  The chiller auxiliary support equipment in buildings 24, 28, and 48, is the equipment/components required to support the operation of a plant chilled water system or a backup to provide chilled water when the plant chilled water systems not available.

Distribution/Use – The chilled water piping system contains approximately eight miles of primary supply and return piping that connects the central/auxiliary plants to the mall facilities and building 48.  This system includes the direct buried chilled water supply and return feeds from both building 24 and 28 that connects in the tunnel.  The Building 48 chilled water distribution system provides chilled water supply and return to the MCC and helps feed the tunnel system when necessary.  The building 48 system can either produce chilled water or redirect building 24 and 28 chilled water as required.

Closed loop cooling systems are those systems that use a chilled water heat exchanger to provide a secondary cooling water loop to provide cleaner cooling water for sensitive/critical equipment.

1.1.01.B   B. Output Production – The contractor shall operate chilled water systems as necessary to ensure chilled water is continuously supplied to facilities to satisfy the load.  The central/auxiliary plant chilled water systems must be maintained in such a manner as to ensure that there are always two spare chilled water systems available to be placed in service at all times.  During mission support periods the building 24 and 28 systems must be available to immediately support the additional load from the MCC if necessary.  The roof mounted backup water chiller at the central plant shall be available at all times to support critical air handler 24-6 operation in the event of a plant chilled water outage. The building 48 chilled water system shall continuously satisfy the MCC load and shall provide chilled water at 44°F +/-1°F or as directed by NASA.  The building 48 system shall maintain at least one chiller in a standby condition available to be placed into immediate service with one chiller down for maintenance/repair and with a two chiller load.  All chilled water systems shall be maintained such that freon leaks are repaired within 30 days of discovery.  The contractor shall operate the chilled water systems that are the most energy efficient based on lowest $/ton operational cost per chiller unit except during outages, equipment training, or weekend equipment rotation operation to maintain equipment reliability.  All systems shall be free of water leaks.

Distribution/Use – All chilled water distribution systems shall deliver a continuous chilled water supply from the point of production to the facility and shall be maintained free of leaks.  All chilled water systems shall be controlled at each HVAC system to meet the requirements for cold deck temperatures as specified in the JSC Spring/Summer and Fall/Winter Seasonal Adjustment Plan and to meet building temperature and humidity requirements.  Closed loop cooling systems shall meet the equipment requirements for flow, temperature, and capacity and be free of leaks.
1.1.01.C   C. Components Production – The chilled water system components include but are not limited to, chilled water pump, filter, evaporator, condenser and economizer section, electric motor or steam turbine driver, gear box, compressor, oil return units, control panels and the field control systems, heat exchangers, pumps, surface condensers, hot well pumps, piping, refrigerant piping, refrigerant valves, instrumentation including PLC’s, flow devices, probes, delta-Pressure switches, pneumatic controls, etc., makeup water tanks, side stream filters, compression tanks, freon recovery units, and freon boil off vessels.

Distribution/Use – The tunnel chilled water system may include but are not limited to the following: piping, cathodic protection system, insulation and aluminum jacketing, air vents, valves and associated brass tags, instrumentation including flow devices, probes, delta-Pressure switches, etc.  All chilled water systems include the chilled water system inside the facilities.  The components of the chilled water system may include, but not be limited to, pumps, strainers, instrumentation including flow devices, probes, delta-Pressure switches, etc., gauges, controls, orifice plates and other flow elements, compression tanks, control valves and associated controls, valves, fittings, pipe, labels and insulation.

Closed loop cooling systems may contain, but not be limited to, any combination of heat exchangers, pumps, piping, fittings, labels, valves, flow indicators, compression tanks, strainers, filters, auto air eliminators, insulation, instrumentation, and controls.
1.1.02 Mech.

HVAC

  
1.1.02.A   A. Description That system which supplies conditioned air to a space or facility, to maintain required temperature humidity conditions.
1.1.02.B   B. Output The space to be conditioned shall be maintained at temperatures specified in JMI 8836.1 for personnel comfort and/or equipment requirements.  Air exchanges and indoor air quality shall be provided to meet current ASHRAE recommendations.  Discharge air temperatures from HVAC units shall be as directed in Spring/Summer and Fall/Winter Seasonal Adjustment plans.  Provide indoor air quality such that visual inspection of the supply air ducts, diffusers and cooling coil section (including coil, pan, piping, insulation and walls), of the air handler shall reveal no biological growth, algae, fungus, mildew, etc.  Spot Coolers shall be installed and operated, including condensate removal, for short term (less than 6 months) facility configuration changes.
1.1.02.C   C. Components These systems are defined to include chilled water, direct expansion systems, and PTOA’s (Pre-Treated Outside Air), interior and exterior locations including but not limited to, mechanical rooms, computer rooms, general office areas, laboratories, vaults, and overhead installations.  This may also include but not be limited to central station units, portable spot coolers, window units, D/X split systems, fan coil units, condenser units, package units, and floor mounted computer room type units.  Components shall be defined as, but not limited to, coil (CW and refrigerant), fan, constant and variable frequency drive units, motor drive, belt, filters, control valves, reboiler, condensate collection pans and piping, hot water coils, steam coils, refrigerant coils, gas fired furnace section, overflow protection devices, humidity control heaters (hot water and electric) and instrumentation, humidifiers, accelerometers, compressor and associated instrumentation and controls, gauges and other instrumentation and controls specific to the air handler systems including flow devices, probes, delta-Pressure switches, etc., air distribution systems such as mixing boxes, variable air terminals, fans, heaters, ducting, dampers ,and  insulation.
1.1.03 Mech.

Cooling Towers

  
1.1.03.A   A. Description Cooling towers/condenser/cooling water systems are heat rejection systems that provide cooling water for condensing refrigerants in HVAC/Chillers or other cooling applications.
1.1.03.B   B. Output All condenser/cooling water systems shall continuously satisfy the plant and/or facility loads and shall provide condenser water to the plants at 86 °F to 90 °F on design days at 80 °F wet bulb temperature while utilizing an optimum number of cooling tower cells.  The contractor shall provide a water treatment program to maintain mild steel corrosion rates less than 2.0 mils per year and copper corrosion rates less than .2 mils per year and the program shall treat the water and tower areas for algae and biological growth.  When any bacterial growth is detected that poses potential harm to personnel or equipment, as determined by the JSC Occupational Health Office, an aggressive treatment program must be maintained until the algae/bacteria growth is destroyed.  The system shall be free of leaks.  The building 24 plant condenser water system shall be maintained to be able to support the two additional backup chilled water systems as required in section 1.1.01.B.  Condenser water quality shall be maintained within the chemical limits as specified on JSC Form 1426, Water Analysis Log for Cooling Towers in Buildings 28 or 48.
1.1.03.C   C. Components Cooling tower/condenser/cooling water systems are defined as containing, but not limited to, all or any combination of cooling towers, heat exchangers, piping, filters, fittings, labels, fans, gear boxes, flow elements, basins, pumps, valves, fire detection and protection equipment, chemical feed pumps, chlorine supply system, chemical treatment systems, side stream filtration, controls, accelerometers, and instrumentation including flow devices, probes, delta-Pressure switches, etc.
1.1.04 Mech.

Compressed Air

  
1.1.04.A   A. Description Production – Buildings 24 and 28 shall provide dry, oil-free compressed air internally and through the tunnel or direct buried to the site buildings to be used as instrument or shop air.  Building 48 shall provide dry compressed air internally through the tunnel for building 30M if the central plant cannot provide sufficient quantity or pressure.  Included are systems that supply and distribute dry, compressed breathing air to the building for use as breathing air.  Also included are starting air systems that supply and deliver starting air to starting air motors on diesel engines.

Distribution/Use – The compressed air distribution system is a piping network approximately four miles in length, both tunnel and direct buried, that connects the central/auxiliary plant outputs to the JSC facilities and the building 48 output to the Mission Control Center.  The compressed air systems are defined to include the compressed air system inside the facility described as instrument, shop, plant, and breathing air. All *JSC facilities are equipped with either an independent control/shop or breathing air compressor or have a backup control air compressor when supplied with plant air.

1.1.04.B   B. Output Production – The building 24 plant air system shall continuously satisfy the site load and shall provide oil free compressed air to the site buildings at a nominal 125-psig +/- 3 psig with a maximum dew point of – 40 °F +/- 5 °F or as directed by NASA.  The building 28 plant air system shall operate at 140 PSIG +/-3 PSIG with a maximum dew point of –40 °F +/- 5 °F or as directed by NASA.  The plant compressed air system shall have one additional utility air compressor available to be placed in service at all times as a standby compressor.  The dew point air output from the desiccant dryer system shall be maintained and the desiccant shall be replaced, heater elements replaced, or other repairs made as required to ensure the dew point requirement.  The plant air system shall be operated at 150-psig +/- 3 psig.  The starting air system for the power engines shall provide compressed air whenever needed at 150-psig +0/-5 psig or as directed by NASA.

Distribution/Use - The compressed air distribution system shall deliver a continuous supply of compressed air from the point of production to point of use at the required quantity and pressure.  The instrument air pressure shall be regulated to a nominal 20-PSI +/- 1 PSI.  The breathing air system shall deliver dry, compressed breathing air to the building at 150 PSI +/- 3 PSI (or as directed by NASA), certified for breathing and conforming to sampling per American National Standard Commodity Specification for Air, Compressed Gas Association, Inc. (ANSI/CGA G-7.1-1989 or latest version.)

All *JSC compressed air systems shall maintain current certification of all pressure systems and components per JHB 1710B, and current **Pressure Systems Inventory Recall such that no component or system inspection date can be found to be out of compliance.  All *JSC compressed air systems shall be free of leaks.
1.1.04.C   C. Components The *JSC compressed air systems may include but are not limited to, air compressors of all types (both Central plant and facility), air receiver tanks, air dryers of any type, filters, piping, cooling systems, pumps, instrumentation, including flow devices, probes, delta-Pressure switches, etc., controls, relief valves, check valves, associated gauges, pressure regulating stations, oilers, condensate traps; pressure protective devices; valves; fittings; and labels, cathodic protection systems, pressure regulating stations, filter stations.
1.1.05 Mech. Steam & Condensate  
1.1.05.A   A. Description Production – The building 24 steam system shall provide steam through the utility tunnel and provide for condensate return to and from the site buildings.  This steam is utilized for at the facilities for domestic hot water, space heating, humidification and process uses.  Some *JSC buildings have low-pressure steam boilers for heating and high-pressure steam boilers for test applications.

Distribution/Use - The utility tunnel steam supply/condensate return system is a piping system approximately three and one half miles in total length that connects the building 24 output to the JSC mall facilities. In the facility the steam is reduced in pressure as required and distributed to the point of use.  The system includes that portion that collects and returns condensate produced from the steam system.  The condensate is collected in condensate return units or through tunnel steam traps and returned to the plant from the mall facilities through the tunnel return condensate piping system.
1.1.05.B   B. Output Production – The steam system shall continuously supply and satisfy the site load with 400 psig superheated steam to the plant header system and shall reduce this high-pressure steam to 100 psig plus or minus 10 psig in the summer.  The output pressure shall be adjusted as required in the heating season to maintain 100 psig at building 35 to meet the building load requirements and may be adjusted as directed by NASA.  The output steam shall be desuperheated to approximately 300 °F at the plant pressure reducing/desuperheating stations.  The plant steam system shall have one additional boiler available to be placed in service at all times as a warm standby boiler.  The condensate return shall be deaerated at building 24 and shall be chemically treated with phosphate to be within 15-25 mg/liter and sulfite to be within 20-40 mg/liter prior to use in any of the plant boilers.  The supply steam to the site shall be treated with amines for a condensate water pH of 8-9 to ensure condensate pipe integrity.  The contractor shall ensure condensate return, to be at least 85% of supply, from the site buildings by verifying condensate return units and all steam traps are operating properly.  The contractor shall ensure that the return condensate to the plant is pure by checking condensate return water quality for hardness with a laboratory color change test each shift.  Potable water that shall be used as a makeup in the condensate system shall be softened to less that 2 mg/liter, maximum hardness.  Steam production systems in *JSC buildings not served by the JSC central plant shall be capable of supplying continuous steam as required to satisfy the Fall and Summer Energy Guidelines.

Distribution/Use - The tunnel steam supply/condensate return system shall continuously supply steam from the plant production system to the facilities and return condensate from the facilities to the plant.  All zones of the tunnel steam/condensate system shall be maintained in service at all times to ensure a continuous supply of steam and return of condensate from mall buildings.  Only brief exceptions of this requirement will be permitted in an effort to locate potable water hardness leaks, repair failed condensate return units, or as required by a utility procedure.  Distribution systems other than the tunnel shall provide the quantity and quality of steam required for the end use.  All steam/condensate valves shall be in an operable state with no actuators missing and all valves, traps, etc. shall be labeled with brass tags containing the valve station number and pressure systems inventory information.  The steam system shall deliver adequate quantity and quality of steam to the building from the tunnel to meet facility requirements.

All *JSC steam systems shall maintain current certification of all pressure systems and components per JHB 1710B, and current **Pressure Systems Inventory Recall such that no component or system inspection date can be found to be out of compliance.  All *JSC steam systems shall be free of leaks.
1.1.05.C   C. Components Steam/condensate production distribution and return system and support components of the steam system may include but are not limited to, storage tanks, deaerator vessels, condensate pumps, boiler feedwater pumps, hot well pumps, plant boilers, pressure reducing/desuperating stations, chemical storage tanks, chemical feed pumps, water softener, water dealkalizer vessel, steam traps, condensate return units, natural gas scrubber, fuel oil supply pumps fuel oil storage tank, feedwater economizers, boiler oxygen trim controls, other boiler controls and instrumentation, plant master pressure controllers that control the boiler master loop, steam/condensate/chemical/, and fuel piping, gas meters for the boilers, condensate flow meters, make-up water meters, piping, insulation including aluminum jacketing, supports, expansion joints, instrumentation, flow devices, probes, delta-Pressure switches, etc., pressure reducing/regulating stations, gauges, hot water converter vessels; boilers; steam coils in outside air units; reboilers; relief valves and pressure protective devices; valves; fittings, pumps, condensate traps, valves; fittings, flash tanks, and labels.
1.1.06 Mech. Exhaust & Ventilation  
1.1.06.A   A. Description Those facility systems that: (1) exhaust heat, fumes, odors or other contaminants from within the facility, (2) provide air flow to remove paint fumes from the painting booth facilities (3) exhaust smoke from a facility to provide personnel protection from combustion products, (4) supply fresh air make-up to meet indoor air quality requirements and (5) maintain required pressure in the facility.
1.1.06.B   B. Output The systems shall supply/exhaust the required quantity and balance of air as required by current design parameters as well as comply with all applicable codes and standards.  Paint booth ventilation systems air mass flow shall be provided per OSHA requirements as sampled per OSHA 190.107, Spray Finishing using Flammable and Combustible Materials as amended.  Smoke exhaust systems shall function as designed whenever preset conditions are met.  All required fans and dampers shall function and be in correct field position based on location of smoke/fire alarm.  All components of a facility ventilation system shall function as designed and maintain indoor air quality in accordance with ASHRAE standards.  All systems shall be properly labeled to include but not be limited to, power sources and hazard conditions.
1.1.06.C   C. Components Supply/Exhaust ventilation systems may include, but not be limited to, exhaust fans, ducts, dampers, stacks, fume hoods, flow benches, kitchen hoods, fire dampers, fire extinguishing equipment, shop hoods, perchloric acid hoods, wash down systems, paint booths, controls, instrumentation, inlet blowers and all associated components, filters and filter banks and associated parts, exhaust blowers and all associated components, associated controls, instrumentation and gauges, control air system and related components, heaters, smoke exhaust fans, fresh air fans, insulation, water scrubbers, dust/sawdust collection systems, flow measurement devices and labels.
1.1.07 Mech. Refrigeration  
1.1.07.A   A. Description Those systems and components that provide low temperature environments for the preservation of food, photographic products, medical specimens, and other items as required.  Included in this are the ice machines, central water coolers, and refrigerated drinking fountains and water coolers, at *JSC.
1.1.07.B   B. Output The temperatures for these systems shall be controlled to set points defined by the government.  The system shall be free of leaks.  Systems shall function continually to provide required condition.  All *JSC refrigeration systems shall be free of leaks.  All *JSC drinking fountains shall be free of lead.
1.1.07.C   C. Components Refrigeration systems include but not limited to, Walk-in/Reach-in Coolers, Walk-in/Reach-in Freezers, Refrigerators, Freezers, Film Vaults, Thermal Chambers, ice machines, central water coolers, and refrigerated drinking fountains and bottled water coolers, refrigerant piping and components, dryers, mufflers, compressors, condensers, control systems, fans, and filters.
1.1.08 Mech.

Hot Water Heating

  
1.1.08.A   A. Description Those systems that produce, supply, and distribute hot water within the building for use in the HVAC systems.  These include steam, electric and gas fired boilers.
1.1.08.B   B. Output The hot water system shall deliver hot water to the facility from the hot water converter or hot water boiler and shall be provided at 80 -180 °F as required by the Spring/Summer and Fall /Winter Seasonal Adjustment Plans.  The hot water shall be distributed throughout the building as required to meet the above requirement and shall be free of leaks.  It shall be controlled at each HVAC system adequately to meet the requirements for hot deck temperature as specified in the JSC Fall/Winter Seasonal Adjustment Plan and to meet building loads.  All *JSC hot water heating systems shall maintain current certification of all pressure systems and components per JHB 1710B, and current **Pressure Systems Inventory Recall such that no component or system inspection date can be found to be out of compliance.  All *JSC hot water heating systems shall be free of leaks.
1.1.08.C   C. Components The components of the hot water system may include, but not be limited to, boilers, hot water converters, pumps, compression tanks, strainers, instrumentation including flow devices, probes, delta-Pressure switches, etc., gauges, controls, orifice plates and other flow elements, valves, control valves, relief valves, fittings, pipe, labels and insulation.
1.1.09 Mech.

Diesel Fuel

  
1.1.09.A   A. Description That system which stores and supplies diesel fuel for use in engines and in steam boilers.  The diesel fuel storage at JSC consists of above ground tanks at building 24, 42, 48, 207, 300 area, and E245.
1.1.09.B   B. Output Diesel fuel for building 48 shall be high sulfur, high BTU content per EPA definition for use in diesel engines to prevent engine sags when load is added suddenly.  Storage systems shall be fully labeled and contain appropriate quantities and quality of fuel.  Diesel fuel shall be distributed with the proper quantity and pressure required by the point of use.  Maintain tank levels as required and properly monitor the delivery of fuel onsite.  Fuel shall be properly tested before use.  All *JSC diesel fuel systems shall be free of fuel leaks.
1.1.09.C   C. Components The diesel fuel system includes but is not limited to, fuel storage tanks, pumps, piping, fill pumps, recirculating pumps, supply pumps, valves, environmental controls, containments, level measurement devices, flow indicators, flow elements, pressure regulators, gauges, fittings, and pipe.
1.1.10 Mech.

Space Heating

  
1.1.10.A   A. Description That system which provides space heat for personnel and equipment.
1.1.10.B   B. Output Provide space heating for personnel and equipment per JMI 8835.1 for occupied space temperatures.  System shall be continuously available to operate as required per the Spring/Summer and Fall/Winter Seasonal Adjustment Plan and meet all codes , regulations and standards.  All *JSC space heating systems shall maintain current certification of all pressure systems and components per JHB 1710B, and current **Pressure Systems Inventory Recall such that no component or system inspection date can be found to be out of compliance.  All *JSC space heater fluid systems shall be free of leaks.
1.1.10.C   C. Components The space heaters system includes but is not limited to, hot water heaters, catalytic heaters, gas fired heaters, steam heaters, electric heaters, piping, valves, controls, conduit, electrical system, thermostats, fans, motors, belts, insulation and aluminum jacket, vents, relief valves, and blowers.
1.1.11 Mech.

Process Water

  
1.1.11.A   A. Description Process water systems are those *JSC systems that provide water at closely controlled conditions for consumption in designated processes.  These systems may include, but are not limited to, deionized water system, process hot water, and process chilled water.  The JSC deionized water system is that system that produces and distributes deionized, generated water at the reverse osmosis system in building 9, and distributed through a PVC piping system in the tunnel to and through several laboratory facilities at JSC.  The deionized water system provides water that is 90 per cent pure of salts and the process hot and chilled water systems provide filtered water that is heated or cooled for specific purposes.
1.1.11.B   B. Output These systems shall provide the selected operating parameters for pressure, quantity and quality of water at designated locations and shall be free of leaks.
1.1.11.C   C. Components Process water systems may contain, but not be limited to, a reverse osmosis unit, polishing bottles, heat exchangers, boilers, pumps, piping, compression tanks, fittings, labels, valves, chillers, flow elements, strainers, filters, instrumentation, controls, gauges, labels, holding tanks, and insulation.
1.1.12 Mech.

Cafeteria

  
1.1.12.A   A. Description That kitchen or cafeteria equipment used in food preparation.
1.1.12.B   B. Output This equipment shall be maintained in proper working order and be capable of performing the function for which it was intended.
1.1.12.C   C. Components This equipment is defined as including, but not limited to, all or any combination of the following: (1) Steam tables, (2) Ovens, (3) Griddles and cook tops, (4) Ranges, (5) Ice Makers, (6) Steamers, (7) Kettles, (8) Dishwashers, (9) Conveyors, (10) Toasters, and other built-in equipment normally associated with food preparation.
1.1.13 Mech.

Hyperbaric Chamber

  
1.1.13.A   A. Description The hyperbaric chamber system is utilized for human testing at elevated pressures, as well as for emergency repressurization of divers and/or suited test subjects from the NBL, should the need arise.  Subsequently, its proper operation and functional reliability are of paramount importance as a life safety issue.
1.1.13.B   B. Output Each individual component within this system shall provide its designed function and manufacturer’s specified output.  Availability of system output shall be 100% during those periods defined by the user as critical to its operational requirements. Any component outage shall be coordinated with the user, and shall be of brief enough duration as to not impact scheduled testing.
1.1.13.C   C. Components The equipment items comprising this particular system shall consist of, but shall not be limited to, the physical hyperbaric chamber and it attachments, breathing air compressor, reserve breathing air storage, the communication system/intercom, as well as the chamber’s ancillary valves and piping.
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    pumps refers to sump pumps located driveway depressions loading docks some area logistics warehousing buildings

    Section J, Attachment N

    Exhibit N-1 – Table 1

    System Definitions 
     

      1. Mechanical

    # System Type System  
    1.1.01 Mech.

    Chilled Water

    		  
    1.1.01.A   A. Description Production – Water chillers at *JSC consist of large central plant systems (up to 2000 tons) and individual packaged systems serving specific selected facilities.  The central plants, buildings 24 and 28, provide chilled water internally and through the utility tunnel or direct buried to the mall buildings for use as HVAC or process cooling.  The emergency power building, building 48 provides chilled water internally and through the utility tunnel to the Mission Control Center (MCC) buildings (30L, 30M and 30S) to be used in HVAC cooling.  The chiller auxiliary support equipment in buildings 24, 28, and 48, is the equipment/components required to support the operation of a plant chilled water system or a backup to provide chilled water when the plant chilled water systems not available.

    Distribution/Use – The chilled water piping system contains approximately eight miles of primary supply and return piping that connects the central/auxiliary plants to the mall facilities and building 48.  This system includes the direct buried chilled water supply and return feeds from both building 24 and 28 that connects in the tunnel.  The Building 48 chilled water distribution system provides chilled water supply and return to the MCC and helps feed the tunnel system when necessary.  The building 48 system can either produce chilled water or redirect building 24 and 28 chilled water as required.

    Closed loop cooling systems are those systems that use a chilled water heat exchanger to provide a secondary cooling water loop to provide cleaner cooling water for sensitive/critical equipment.

    1.1.01.B   B. Output Production – The contractor shall operate chilled water systems as necessary to ensure chilled water is continuously supplied to facilities to satisfy the load.  The central/auxiliary plant chilled water systems must be maintained in such a manner as to ensure that there are always two spare chilled water systems available to be placed in service at all times.  During mission support periods the building 24 and 28 systems must be available to immediately support the additional load from the MCC if necessary.  The roof mounted backup water chiller at the central plant shall be available at all times to support critical air handler 24-6 operation in the event of a plant chilled water outage. The building 48 chilled water system shall continuously satisfy the MCC load and shall provide chilled water at 44°F +/-1°F or as directed by NASA.  The building 48 system shall maintain at least one chiller in a standby condition available to be placed into immediate service with one chiller down for maintenance/repair and with a two chiller load.  All chilled water systems shall be maintained such that freon leaks are repaired within 30 days of discovery.  The contractor shall operate the chilled water systems that are the most energy efficient based on lowest $/ton operational cost per chiller unit except during outages, equipment training, or weekend equipment rotation operation to maintain equipment reliability.  All systems shall be free of water leaks.

    Distribution/Use – All chilled water distribution systems shall deliver a continuous chilled water supply from the point of production to the facility and shall be maintained free of leaks.  All chilled water systems shall be controlled at each HVAC system to meet the requirements for cold deck temperatures as specified in the JSC Spring/Summer and Fall/Winter Seasonal Adjustment Plan and to meet building temperature and humidity requirements.  Closed loop cooling systems shall meet the equipment requirements for flow, temperature, and capacity and be free of leaks.
    1.1.01.C   C. Components Production – The chilled water system components include but are not limited to, chilled water pump, filter, evaporator, condenser and economizer section, electric motor or steam turbine driver, gear box, compressor, oil return units, control panels and the field control systems, heat exchangers, pumps, surface condensers, hot well pumps, piping, refrigerant piping, refrigerant valves, instrumentation including PLC’s, flow devices, probes, delta-Pressure switches, pneumatic controls, etc., makeup water tanks, side stream filters, compression tanks, freon recovery units, and freon boil off vessels.

    Distribution/Use – The tunnel chilled water system may include but are not limited to the following: piping, cathodic protection system, insulation and aluminum jacketing, air vents, valves and associated brass tags, instrumentation including flow devices, probes, delta-Pressure switches, etc.  All chilled water systems include the chilled water system inside the facilities.  The components of the chilled water system may include, but not be limited to, pumps, strainers, instrumentation including flow devices, probes, delta-Pressure switches, etc., gauges, controls, orifice plates and other flow elements, compression tanks, control valves and associated controls, valves, fittings, pipe, labels and insulation.

    Closed loop cooling systems may contain, but not be limited to, any combination of heat exchangers, pumps, piping, fittings, labels, valves, flow indicators, compression tanks, strainers, filters, auto air eliminators, insulation, instrumentation, and controls.
    1.1.02 Mech.

    HVAC

    		  
    1.1.02.A   A. Description That system which supplies conditioned air to a space or facility, to maintain required temperature humidity conditions.
    1.1.02.B   B. Output The space to be conditioned shall be maintained at temperatures specified in JMI 8836.1 for personnel comfort and/or equipment requirements.  Air exchanges and indoor air quality shall be provided to meet current ASHRAE recommendations.  Discharge air temperatures from HVAC units shall be as directed in Spring/Summer and Fall/Winter Seasonal Adjustment plans.  Provide indoor air quality such that visual inspection of the supply air ducts, diffusers and cooling coil section (including coil, pan, piping, insulation and walls), of the air handler shall reveal no biological growth, algae, fungus, mildew, etc.  Spot Coolers shall be installed and operated, including condensate removal, for short term (less than 6 months) facility configuration changes.
    1.1.02.C   C. Components These systems are defined to include chilled water, direct expansion systems, and PTOA’s (Pre-Treated Outside Air), interior and exterior locations including but not limited to, mechanical rooms, computer rooms, general office areas, laboratories, vaults, and overhead installations.  This may also include but not be limited to central station units, portable spot coolers, window units, D/X split systems, fan coil units, condenser units, package units, and floor mounted computer room type units.  Components shall be defined as, but not limited to, coil (CW and refrigerant), fan, constant and variable frequency drive units, motor drive, belt, filters, control valves, reboiler, condensate collection pans and piping, hot water coils, steam coils, refrigerant coils, gas fired furnace section, overflow protection devices, humidity control heaters (hot water and electric) and instrumentation, humidifiers, accelerometers, compressor and associated instrumentation and controls, gauges and other instrumentation and controls specific to the air handler systems including flow devices, probes, delta-Pressure switches, etc., air distribution systems such as mixing boxes, variable air terminals, fans, heaters, ducting, dampers ,and  insulation.
    1.1.03 Mech.

    Cooling Towers

    		  
    1.1.03.A   A. Description Cooling towers/condenser/cooling water systems are heat rejection systems that provide cooling water for condensing refrigerants in HVAC/Chillers or other cooling applications.
    1.1.03.B   B. Output All condenser/cooling water systems shall continuously satisfy the plant and/or facility loads and shall provide condenser water to the plants at 86 °F to 90 °F on design days at 80 °F wet bulb temperature while utilizing an optimum number of cooling tower cells.  The contractor shall provide a water treatment program to maintain mild steel corrosion rates less than 2.0 mils per year and copper corrosion rates less than .2 mils per year and the program shall treat the water and tower areas for algae and biological growth.  When any bacterial growth is detected that poses potential harm to personnel or equipment, as determined by the JSC Occupational Health Office, an aggressive treatment program must be maintained until the algae/bacteria growth is destroyed.  The system shall be free of leaks.  The building 24 plant condenser water system shall be maintained to be able to support the two additional backup chilled water systems as required in section 1.1.01.B.  Condenser water quality shall be maintained within the chemical limits as specified on JSC Form 1426, Water Analysis Log for Cooling Towers in Buildings 28 or 48.
    1.1.03.C   C. Components Cooling tower/condenser/cooling water systems are defined as containing, but not limited to, all or any combination of cooling towers, heat exchangers, piping, filters, fittings, labels, fans, gear boxes, flow elements, basins, pumps, valves, fire detection and protection equipment, chemical feed pumps, chlorine supply system, chemical treatment systems, side stream filtration, controls, accelerometers, and instrumentation including flow devices, probes, delta-Pressure switches, etc.
    1.1.04 Mech.

    Compressed Air

    		  
    1.1.04.A   A. Description Production – Buildings 24 and 28 shall provide dry, oil-free compressed air internally and through the tunnel or direct buried to the site buildings to be used as instrument or shop air.  Building 48 shall provide dry compressed air internally through the tunnel for building 30M if the central plant cannot provide sufficient quantity or pressure.  Included are systems that supply and distribute dry, compressed breathing air to the building for use as breathing air.  Also included are starting air systems that supply and deliver starting air to starting air motors on diesel engines.

    Distribution/Use – The compressed air distribution system is a piping network approximately four miles in length, both tunnel and direct buried, that connects the central/auxiliary plant outputs to the JSC facilities and the building 48 output to the Mission Control Center.  The compressed air systems are defined to include the compressed air system inside the facility described as instrument, shop, plant, and breathing air. All *JSC facilities are equipped with either an independent control/shop or breathing air compressor or have a backup control air compressor when supplied with plant air.

    1.1.04.B   B. Output Production – The building 24 plant air system shall continuously satisfy the site load and shall provide oil free compressed air to the site buildings at a nominal 125-psig +/- 3 psig with a maximum dew point of – 40 °F +/- 5 °F or as directed by NASA.  The building 28 plant air system shall operate at 140 PSIG +/-3 PSIG with a maximum dew point of –40 °F +/- 5 °F or as directed by NASA.  The plant compressed air system shall have one additional utility air compressor available to be placed in service at all times as a standby compressor.  The dew point air output from the desiccant dryer system shall be maintained and the desiccant shall be replaced, heater elements replaced, or other repairs made as required to ensure the dew point requirement.  The plant air system shall be operated at 150-psig +/- 3 psig.  The starting air system for the power engines shall provide compressed air whenever needed at 150-psig +0/-5 psig or as directed by NASA.

    Distribution/Use - The compressed air distribution system shall deliver a continuous supply of compressed air from the point of production to point of use at the required quantity and pressure.  The instrument air pressure shall be regulated to a nominal 20-PSI +/- 1 PSI.  The breathing air system shall deliver dry, compressed breathing air to the building at 150 PSI +/- 3 PSI (or as directed by NASA), certified for breathing and conforming to sampling per American National Standard Commodity Specification for Air, Compressed Gas Association, Inc. (ANSI/CGA G-7.1-1989 or latest version.)

    All *JSC compressed air systems shall maintain current certification of all pressure systems and components per JHB 1710B, and current **Pressure Systems Inventory Recall such that no component or system inspection date can be found to be out of compliance.  All *JSC compressed air systems shall be free of leaks.
    1.1.04.C   C. Components The *JSC compressed air systems may include but are not limited to, air compressors of all types (both Central plant and facility), air receiver tanks, air dryers of any type, filters, piping, cooling systems, pumps, instrumentation, including flow devices, probes, delta-Pressure switches, etc., controls, relief valves, check valves, associated gauges, pressure regulating stations, oilers, condensate traps; pressure protective devices; valves; fittings; and labels, cathodic protection systems, pressure regulating stations, filter stations.
    1.1.05 Mech. Steam & Condensate  
    1.1.05.A   A. Description Production – The building 24 steam system shall provide steam through the utility tunnel and provide for condensate return to and from the site buildings.  This steam is utilized for at the facilities for domestic hot water, space heating, humidification and process uses.  Some *JSC buildings have low-pressure steam boilers for heating and high-pressure steam boilers for test applications.

    Distribution/Use - The utility tunnel steam supply/condensate return system is a piping system approximately three and one half miles in total length that connects the building 24 output to the JSC mall facilities. In the facility the steam is reduced in pressure as required and distributed to the point of use.  The system includes that portion that collects and returns condensate produced from the steam system.  The condensate is collected in condensate return units or through tunnel steam traps and returned to the plant from the mall facilities through the tunnel return condensate piping system.
    1.1.05.B   B. Output Production – The steam system shall continuously supply and satisfy the site load with 400 psig superheated steam to the plant header system and shall reduce this high-pressure steam to 100 psig plus or minus 10 psig in the summer.  The output pressure shall be adjusted as required in the heating season to maintain 100 psig at building 35 to meet the building load requirements and may be adjusted as directed by NASA.  The output steam shall be desuperheated to approximately 300 °F at the plant pressure reducing/desuperheating stations.  The plant steam system shall have one additional boiler available to be placed in service at all times as a warm standby boiler.  The condensate return shall be deaerated at building 24 and shall be chemically treated with phosphate to be within 15-25 mg/liter and sulfite to be within 20-40 mg/liter prior to use in any of the plant boilers.  The supply steam to the site shall be treated with amines for a condensate water pH of 8-9 to ensure condensate pipe integrity.  The contractor shall ensure condensate return, to be at least 85% of supply, from the site buildings by verifying condensate return units and all steam traps are operating properly.  The contractor shall ensure that the return condensate to the plant is pure by checking condensate return water quality for hardness with a laboratory color change test each shift.  Potable water that shall be used as a makeup in the condensate system shall be softened to less that 2 mg/liter, maximum hardness.  Steam production systems in *JSC buildings not served by the JSC central plant shall be capable of supplying continuous steam as required to satisfy the Fall and Summer Energy Guidelines.

    Distribution/Use - The tunnel steam supply/condensate return system shall continuously supply steam from the plant production system to the facilities and return condensate from the facilities to the plant.  All zones of the tunnel steam/condensate system shall be maintained in service at all times to ensure a continuous supply of steam and return of condensate from mall buildings.  Only brief exceptions of this requirement will be permitted in an effort to locate potable water hardness leaks, repair failed condensate return units, or as required by a utility procedure.  Distribution systems other than the tunnel shall provide the quantity and quality of steam required for the end use.  All steam/condensate valves shall be in an operable state with no actuators missing and all valves, traps, etc. shall be labeled with brass tags containing the valve station number and pressure systems inventory information.  The steam system shall deliver adequate quantity and quality of steam to the building from the tunnel to meet facility requirements.

    All *JSC steam systems shall maintain current certification of all pressure systems and components per JHB 1710B, and current **Pressure Systems Inventory Recall such that no component or system inspection date can be found to be out of compliance.  All *JSC steam systems shall be free of leaks.
    1.1.05.C   C. Components Steam/condensate production distribution and return system and support components of the steam system may include but are not limited to, storage tanks, deaerator vessels, condensate pumps, boiler feedwater pumps, hot well pumps, plant boilers, pressure reducing/desuperating stations, chemical storage tanks, chemical feed pumps, water softener, water dealkalizer vessel, steam traps, condensate return units, natural gas scrubber, fuel oil supply pumps fuel oil storage tank, feedwater economizers, boiler oxygen trim controls, other boiler controls and instrumentation, plant master pressure controllers that control the boiler master loop, steam/condensate/chemical/, and fuel piping, gas meters for the boilers, condensate flow meters, make-up water meters, piping, insulation including aluminum jacketing, supports, expansion joints, instrumentation, flow devices, probes, delta-Pressure switches, etc., pressure reducing/regulating stations, gauges, hot water converter vessels; boilers; steam coils in outside air units; reboilers; relief valves and pressure protective devices; valves; fittings, pumps, condensate traps, valves; fittings, flash tanks, and labels.
    1.1.06 Mech. Exhaust & Ventilation  
    1.1.06.A   A. Description Those facility systems that: (1) exhaust heat, fumes, odors or other contaminants from within the facility, (2) provide air flow to remove paint fumes from the painting booth facilities (3) exhaust smoke from a facility to provide personnel protection from combustion products, (4) supply fresh air make-up to meet indoor air quality requirements and (5) maintain required pressure in the facility.
    1.1.06.B   B. Output The systems shall supply/exhaust the required quantity and balance of air as required by current design parameters as well as comply with all applicable codes and standards.  Paint booth ventilation systems air mass flow shall be provided per OSHA requirements as sampled per OSHA 190.107, Spray Finishing using Flammable and Combustible Materials as amended.  Smoke exhaust systems shall function as designed whenever preset conditions are met.  All required fans and dampers shall function and be in correct field position based on location of smoke/fire alarm.  All components of a facility ventilation system shall function as designed and maintain indoor air quality in accordance with ASHRAE standards.  All systems shall be properly labeled to include but not be limited to, power sources and hazard conditions.
    1.1.06.C   C. Components Supply/Exhaust ventilation systems may include, but not be limited to, exhaust fans, ducts, dampers, stacks, fume hoods, flow benches, kitchen hoods, fire dampers, fire extinguishing equipment, shop hoods, perchloric acid hoods, wash down systems, paint booths, controls, instrumentation, inlet blowers and all associated components, filters and filter banks and associated parts, exhaust blowers and all associated components, associated controls, instrumentation and gauges, control air system and related components, heaters, smoke exhaust fans, fresh air fans, insulation, water scrubbers, dust/sawdust collection systems, flow measurement devices and labels.
    1.1.07 Mech. Refrigeration  
    1.1.07.A   A. Description Those systems and components that provide low temperature environments for the preservation of food, photographic products, medical specimens, and other items as required.  Included in this are the ice machines, central water coolers, and refrigerated drinking fountains and water coolers, at *JSC.
    1.1.07.B   B. Output The temperatures for these systems shall be controlled to set points defined by the government.  The system shall be free of leaks.  Systems shall function continually to provide required condition.  All *JSC refrigeration systems shall be free of leaks.  All *JSC drinking fountains shall be free of lead.
    1.1.07.C   C. Components Refrigeration systems include but not limited to, Walk-in/Reach-in Coolers, Walk-in/Reach-in Freezers, Refrigerators, Freezers, Film Vaults, Thermal Chambers, ice machines, central water coolers, and refrigerated drinking fountains and bottled water coolers, refrigerant piping and components, dryers, mufflers, compressors, condensers, control systems, fans, and filters.
    1.1.08 Mech.

    Hot Water Heating

    		  
    1.1.08.A   A. Description Those systems that produce, supply, and distribute hot water within the building for use in the HVAC systems.  These include steam, electric and gas fired boilers.
    1.1.08.B   B. Output The hot water system shall deliver hot water to the facility from the hot water converter or hot water boiler and shall be provided at 80 -180 °F as required by the Spring/Summer and Fall /Winter Seasonal Adjustment Plans.  The hot water shall be distributed throughout the building as required to meet the above requirement and shall be free of leaks.  It shall be controlled at each HVAC system adequately to meet the requirements for hot deck temperature as specified in the JSC Fall/Winter Seasonal Adjustment Plan and to meet building loads.  All *JSC hot water heating systems shall maintain current certification of all pressure systems and components per JHB 1710B, and current **Pressure Systems Inventory Recall such that no component or system inspection date can be found to be out of compliance.  All *JSC hot water heating systems shall be free of leaks.
    1.1.08.C   C. Components The components of the hot water system may include, but not be limited to, boilers, hot water converters, pumps, compression tanks, strainers, instrumentation including flow devices, probes, delta-Pressure switches, etc., gauges, controls, orifice plates and other flow elements, valves, control valves, relief valves, fittings, pipe, labels and insulation.
    1.1.09 Mech.

    Diesel Fuel

    		  
    1.1.09.A   A. Description That system which stores and supplies diesel fuel for use in engines and in steam boilers.  The diesel fuel storage at JSC consists of above ground tanks at building 24, 42, 48, 207, 300 area, and E245.
    1.1.09.B   B. Output Diesel fuel for building 48 shall be high sulfur, high BTU content per EPA definition for use in diesel engines to prevent engine sags when load is added suddenly.  Storage systems shall be fully labeled and contain appropriate quantities and quality of fuel.  Diesel fuel shall be distributed with the proper quantity and pressure required by the point of use.  Maintain tank levels as required and properly monitor the delivery of fuel onsite.  Fuel shall be properly tested before use.  All *JSC diesel fuel systems shall be free of fuel leaks.
    1.1.09.C   C. Components The diesel fuel system includes but is not limited to, fuel storage tanks, pumps, piping, fill pumps, recirculating pumps, supply pumps, valves, environmental controls, containments, level measurement devices, flow indicators, flow elements, pressure regulators, gauges, fittings, and pipe.
    1.1.10 Mech.

    Space Heating

    		  
    1.1.10.A   A. Description That system which provides space heat for personnel and equipment.
    1.1.10.B   B. Output Provide space heating for personnel and equipment per JMI 8835.1 for occupied space temperatures.  System shall be continuously available to operate as required per the Spring/Summer and Fall/Winter Seasonal Adjustment Plan and meet all codes , regulations and standards.  All *JSC space heating systems shall maintain current certification of all pressure systems and components per JHB 1710B, and current **Pressure Systems Inventory Recall such that no component or system inspection date can be found to be out of compliance.  All *JSC space heater fluid systems shall be free of leaks.
    1.1.10.C   C. Components The space heaters system includes but is not limited to, hot water heaters, catalytic heaters, gas fired heaters, steam heaters, electric heaters, piping, valves, controls, conduit, electrical system, thermostats, fans, motors, belts, insulation and aluminum jacket, vents, relief valves, and blowers.
    1.1.11 Mech.

    Process Water

    		  
    1.1.11.A   A. Description Process water systems are those *JSC systems that provide water at closely controlled conditions for consumption in designated processes.  These systems may include, but are not limited to, deionized water system, process hot water, and process chilled water.  The JSC deionized water system is that system that produces and distributes deionized, generated water at the reverse osmosis system in building 9, and distributed through a PVC piping system in the tunnel to and through several laboratory facilities at JSC.  The deionized water system provides water that is 90 per cent pure of salts and the process hot and chilled water systems provide filtered water that is heated or cooled for specific purposes.
    1.1.11.B   B. Output These systems shall provide the selected operating parameters for pressure, quantity and quality of water at designated locations and shall be free of leaks.
    1.1.11.C   C. Components Process water systems may contain, but not be limited to, a reverse osmosis unit, polishing bottles, heat exchangers, boilers, pumps, piping, compression tanks, fittings, labels, valves, chillers, flow elements, strainers, filters, instrumentation, controls, gauges, labels, holding tanks, and insulation.
    1.1.12 Mech.

    Cafeteria

    		  
    1.1.12.A   A. Description That kitchen or cafeteria equipment used in food preparation.
    1.1.12.B   B. Output This equipment shall be maintained in proper working order and be capable of performing the function for which it was intended.
    1.1.12.C   C. Components This equipment is defined as including, but not limited to, all or any combination of the following: (1) Steam tables, (2) Ovens, (3) Griddles and cook tops, (4) Ranges, (5) Ice Makers, (6) Steamers, (7) Kettles, (8) Dishwashers, (9) Conveyors, (10) Toasters, and other built-in equipment normally associated with food preparation.
    1.1.13 Mech.

    Hyperbaric Chamber

    		  
    1.1.13.A   A. Description The hyperbaric chamber system is utilized for human testing at elevated pressures, as well as for emergency repressurization of divers and/or suited test subjects from the NBL, should the need arise.  Subsequently, its proper operation and functional reliability are of paramount importance as a life safety issue.
    1.1.13.B   B. Output Each individual component within this system shall provide its designed function and manufacturer’s specified output.  Availability of system output shall be 100% during those periods defined by the user as critical to its operational requirements. Any component outage shall be coordinated with the user, and shall be of brief enough duration as to not impact scheduled testing.
    1.1.13.C   C. Components The equipment items comprising this particular system shall consist of, but shall not be limited to, the physical hyperbaric chamber and it attachments, breathing air compressor, reserve breathing air storage, the communication system/intercom, as well as the chamber’s ancillary valves and piping.
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