2014_TAFB_Mechanical_Standards.pdf

BASE STANDARDS FOR BUILDING/UTLILITY MECHANICAL SYSTEMS

Tinker Air Force Base, Oklahoma

Published June 18, 2014

16. Energy Conservation Requirements

Facilities shall include those energy conservation design features which can be economically justified.

Principal considerations are building envelope and mechanical systems design and operation to minimize the use of fossil fuels.

16.1. Occupancies where air conditioning is permitted shall be per UFC 3-410-01.

16.2. High efficiency Boiler requirements

16.2.1 All new boilers shall have a min. SEER rating of 90%

16.2.2 All small boilers shall have a thermal storage tank.

16.2.3 All condensing boilers shall be provided with acid neutralizers in front of drain line in order to protect existing building utility drain system.

16.3. Metering

Energy usage metering shall be provided for all projects in accordance with UFC 3-400-01 and the most recent Energy Policy Act.

16.3.1 All meters are shall meet the minimum requirement of the Uniformed Facilities Guide Specifications (UFGS) and be capable of communicating to the AF's Advanced Meter Reading System (AMRS).

16.3.4 AMRS System: All devices shall have ITRON MV-90 TIM to communicate with the AMRS system.

16.3.5 AMRS and Utility Metering Requirements include but are not limited to:

New meters and replacement of existing analog meters shall as a minimum be provided with pulse counter which can communicate with AMRS system at Tinker. Daily data is required for a minimum of 90 days.

Electrical Meters; a) 15-minute interval data with 30 days memory, b) LED or LCD display with wireless communication capability, c) Panel mounted / "plug-&play" d) Optical Port,

e) Maximum data functionality; peak, power factor, KVAR, CFM, harmonics, f) Measure energy used, and g) must communicate with the AMRS system at Tinker AFB.

Gas and Water Meters: Daily data required for 90 days.

16.4. Controls Considerations

Other items for consideration for energy conservation are economy cooling cycle, variable volume systems, and night and weekend system shutdown. Controls for night and weekend setback of space temperature shall be provided for all areas.

16.5. Computer Analysis

For all major Military Construction (MILCON) projects, computer dynamic analysis techniques shall be utilized to effectively evaluate all design parameters associated with energy conservation design.

16.6. Life Cycle Cost Analysis

Design features shall be evaluated via life-cycle cost analysis. The various alternatives and their costs evaluated during design shall be documented by the designer and included in submittals.

16.7. Energy Monitoring and Control Systems (EMCS)

16.7.1 All stages of EMCS designs shall be coordinated with the Energy Management Program monitor in the Utility Engineering section (72 ABW / CECO) and HQ AFMC.

16.7.2 Mechanical and electrical systems in facilities shall be provided with the necessary sensors, controls, and hardware points to implement the EMCS application programs per UFC 3-470-01 Lonworks ® Utility Monitoring & Control Systems (UMCS) and UFC 3-410- 02 Lonworks ® Direct Digital Control for HVAC and Other Local Building Systems for monitoring and control of the systems. Site specific schematics shall be provided show-ing all sensors, controls, and hardware points. Wiring from sensors, controls, and hard-ware points shall be in conduit and terminated at a Data Termination Cabinet (DTC) located in mechanical rooms. The conduit shall enter the side and bottom of the panel only. Hand-off-automatic (HOA), off-automatic, and all similar switches shall be key-operated with all switches keyed alike.

16.7.3 Project contractors shall submit the proposed schedule of points to be monitored and/or controlled in the I/O summary table format as outlined in UFC 3-470-01 Lonworks ® Utility Monitoring & Control Systems (UMCS).

16.7.4 All installed control systems shall be integrated into the existing base wide VLAN system and shall be fully compatible with the existing EMCS system interface and software.

Contractor shall contact and coordinate this connection with the acting EMCS manager.

16.8. Solar Heating System Requirements

All new facilities and facilities undergoing major renovations must be evaluated per life cycle costing to determine if 30% or more of required domestic hot water can be supplied by a cost effective solar heating system.

16.10 Infrared Heating Systems

Infrared heaters and system components shall be suspended or supported to prevent motion in both downward and all horizontal (including longitudinal) directions.

16.11 Insulation

All insulated mechanical items shall as a minimum meet or exceed the requirements of ASHRAE 90.1 or meet or exceed the requirements or guidelines of the applicable UFGS specification, whichever has a higher minimum requirement.

Upgraded insulation: The insulation requirements and maximum heat loss rates stated in this section are minimum design requirements. The quality of insulation should be upgraded if the designer can show an improvement in the system performance or that insulation improvements are cost effective.

23. Fire Protection Engineering

23.1. System Design

All fire protection system designs shall be accomplished by a qualified Fire Protection Engineer. All fire protection systems shall be designed in accordance with UFC 3-600-01 Design: Fire Protection Engineering for Facilities, UFC-3-600-02 Operations and Maintenance Inspection, Testing, and Maintenance of Fire Protection Systems, NFPA 13, and the specific project’s Life Safety Fire Protection System Analysis.

Hyperlink for UFC 3-600-01:

http://www.wbdg.org/ccb/DOD/UFC/ufc_3_600_01.pdf

Hyperlink for UFC 3-600-02:

http://www.wbdg.org/ccb/DOD/UFC/ufc_3_600_02.pdf

23.2. Design Submittal

The designer shall provide a preliminary fire sprinkler design, including hydraulic calculations no later than 60% design.

23.3. Acceptable Materials for Underground Dedicated Fire Piping Systems

Piping material for dedicated fire suppression systems shall be ductile iron or steel only and meet or exceed the material standards and requirements listed in NFPA 24.

23.4. Minimum Wall Thickness for Piping

Minimum wall thickness for all sprinkler piping shall be schedule 40 steel.

23.4 Firewalls and Fire Area Limitations

23.4.1 All construction, including fire walls, fire area limitations, emergency lighting systems, means of egress, and exit stairways, shall meet the more stringent requirement of both the NFPA 101 and the International Building Code.

23.4.2 All wall penetrations through existing firewalls shall be fire caulked and sealed.

23.4.3 All duct penetrations through fire walls on both new and repair projects shall have operational and code compliant dampers and seals as required by current code.

24. Plumbing Requirements

24.1. General

All plumbing work shall be in accordance with Unified Facilities Criteria UFC 1-200-01: Design:

General Building Requirements the following shall form the design basis for all base facilities’ plumbing systems design:

24.1.1. Plumbing appliances, equipment, and systems shall be planned, designed, and constructed in accordance with the Unified Facility Criteria documents, Unified Facility Guide Specifications, and military criteria and guidance documents.

24.1.2. This will ensure energy efficient, water conserving, and cost effective facilities are provided that meet mission requirements and are in compliance with Public Laws, Executive Orders, Federal Regulations, and similar mandates.

As implemented by the Air Force Instruction AFI: 32-1066 Backflow Prevention Program and the Uniform Plumbing Code (current edition) shall provide the minimum design requirements for base facilities’ plumbing systems.

24.2. Facility Domestic Water Supply

All facilities plumbing systems shall be designed in accordance with UFC 3 - 420 - 01 Plumbing Systems.

24.2.1. Base domestic water supply systems shall be from potable water lines. All water used for process purposes (heating, air conditioning) shall be isolated from domestic supply systems, or ‘drinking water’, by means of reduced-pressure back flow prevention devices.

24.2.2. Tie-ins to existing water lines shall be analyzed to document as part of the project design analysis that existing demands shall not be adversely affected by new demands.

24.2.3. Domestic hot and cold potable water piping shall be of Type L seamless copper tubing with dielectric insulators at point of contact with dissimilar metallic piping. Provide insulation for all domestic and comfort cooling supply and return lines.

24.2.4. Incorporate handicapped accessible design for all toilet areas, shower areas, and drinking fountains.

24.2.5. Provide stop-valves at all plumbing fixtures.

24.2.6. Provide access to piping, valves, and instrumentation for maintenance personnel.

24.2.7. Specify Type K copper pipe for underground domestic hot water supply applications and Type L copper pipe for above ground hot water applications.

24.2.8. Do not use dissimilar metals in contact with each other on piping in a common electrolyte such as water or soil.

24.2.9. Design piping with the following velocity limitations to avoid erosion corrosion.

Pipe Dimension Maximum Velocity inches mm m/s ft/s

1 25 1 3.5

2 50 1.1 3.6

3 75 1.15 3.8

4 100 1.25 4

6 150 1.5 4.7

8 200 1.75 5.5

10 250 2 6.5

12 300 2.65 8.5

24.2.10. No asbestos-containing materials of any kind shall be used in construction.

24.2.11. Water meters shall be installed on all facilities. See TAFB Facility Standard Section 6:

Utilities for full metering requirements.

24.2.12. For engineering design and system sizing determinations, it shall be anticipated by project designers that the highest demand for water shall be during normal duty hours.

24.3. Cross-Connection and Back flow Prevention

24.3.1. Cross-connection and back flow prevention policies of AFI 32-1066 shall be followed to protect the potable water system and facility occupants.

24.3.2. The proper back flow prevention device shall be specified as required in AFI 32-1066 for the hazard involved.

24.3.3. Back flow prevention devices shall be located and installed to ensure they shall function, not freeze, and permit easy and safe access for testing, service, and repair.

24.4. Wastewater Systems Design

24.4.1. As implemented by the Air Force Instruction AFI: 32-1066 Plumbing Systems, the Uniform Plumbing Code (current edition) shall provide the general minimum design requirements for base facilities’ sanitary sewer systems.

Where specific project requirements are determined more stringent by 72 ABW/CE, use the manual of practice Gravity Sanitary Sewer Design and Construction, as jointly published by the Water Environment Federation and the American Society of Civil Engineers as the MOP FD-5.

24.4.2. Provide sanitary drain systems from lavatories, toilet areas, break areas, and non-industrial waste floor drains to sanitary lines.

24.4.3. All restrooms projects involving under-floor plumbing work shall locate new floor drains under the partitions in the new or final floor layout.

24.4.4. All projects involving a janitor closet and under-floor piping shall place a floor drain in the center of the janitor room with grading to ensure removal of all water from floor.

24.4.5. Wall cleanouts are required and are to be located 26” on center for all water closets, urinals, and lavatories.

24.4.6. Trap primers are required on all floor drains. Trap primers are preferred to be installed in the wall with access panels and with hammer arresters.

24.4.7. All projects on TAFB which include earthwork shall comply with Engineering Technical Letter ETL 03-1: Storm Water Construction Standards.

24.5. Corrosion Prevention and Control

http://www.wbdg.org/ccb/AF/AFI/afi_32_1054.pdf

AFI 32-1054 Corrosion Control

Cathodic protection for buried metallic structures shall be designed IAW UFC 3-570-02A Cathodic Protection, UFC 3-570-02N Electrical Engineering Cathodic Protection, and UFC 3- 570-06 O&M Cathodic Protection System.

24.5.1. Protective coatings: Coating specifications for above and below ground high value metallic structures shall be prepared IAW the guide specifications shown in UFC 3-190- 06 Paints & Protective Coatings.

24.5.2. Underground piping systems shall conform to either FS-L-C-530, Type II except tape and primer conform to AWWAC203, for epoxy or for continuously extruded polyethylene, FS- L-C-530, Type I.

24.5.3. On all metallic structures where the surface is blasted to white or near white finish, no blasted surface shall be left unprimed beyond the normal workday.

24.5.4. Coatings specified for underground or submerged use shall be those specifically designed for those types of environmental conditions.

24.5.5. Under no circumstances shall thin plastic film tapes, such as electrical tape, be used to coat underground structures or wiring.

24.5.6. Reference NACE Standard RP-01-69 for coating information.

24.6. Cathodic Protection

General soil conditions at Tinker AFB are very conducive to corrosion of underground metal structures.

24.6.1. The soil varies from sandy silt to sandy clay with areas of stratification of the various types.

24.6.2. Soil resistivity varies from a high of 26,100 ohm-cm to a low of 529 ohm-cm. There is no soil resistivity data available at the base.

24.6.3. Designer shall take readings at the locations of structures and paths of utilities being cathodically protected.

24.6.4. Design analysis shall contain a map showing the sites of such readings, type of instrument used and a table containing location designation and soil resistivity.

24.6.5. Cathodic protection design shall be a complete design and not a performance specification.

24.6.6. The cathodic protection system to be installed shall be designed by an engineer who has been accredited as a "Corrosion Specialist" by the National Association of Corrosion Engineers, which verifies that engineer has had experience in cathodic protection design, installation and testing as per UFC 3-570-02A Cathodic Protection and UFC 3-570-06 O&M Cathodic Protection Systems.

24.6.7. Guidance for the installation and/or use of corrosion mitigation equipment and procedures is provided by UFC 3-570-02A Cathodic Protection and UFC 3-570-06 O&M Cathodic Protection Systems.

24.6.8. All metals installed underground or in contact with the ground at Tinker AFB shall have cathodic protection for control of corrosion.

24.7. Water Treatment

Water treatment shall be provided for all transfer media in all heat transfer equipment.

24.7.1. Heat transfer equipment shall be taken to include cooling towers, chilled/hot water systems, and boilers.

24.7.2. Treatment shall contain no chromates and no heavy metals.

24.7.3. Water treatment design analysis shall contain base water analysis and step-by-step procedures used to arrive at suggested treatment.

24.7.4. This analysis shall include which of the constituents of the water is the limiting parameter.

24.7.5. All new equipment, water treatment systems and methods installed shall be in compliance with support the descriptions, recommendations, and guidelines of UFC 3- 240-13FN Industrial Water Treatment Operation and Maintenance.

24.7.6. Air Force Non-Chemical/ Nontraditional Water Treatment Devices Policy: Most non-chemical water treatment devices or equipment are not currently authorized for use on military installations, as stated in paragraph 1-1.5. The Air Force will allow their use only under an Energy Saving Performance Contract (ESPC) in which the contractor assumes all performance-based risk. The performance standards for system component protection must meet or exceed those that are achievable with chemical treatment. ( See UFC 3-240-13FN Chapter 8 for details)

24.8. Existing Energy Source

24.8.1. Natural gas is available for facility heating if steam is not available.

24.8.2. Natural gas pressure varies from 30 to 40 psig, seasonally.

24.8.3. Gas is on an uninterruptible contract.

24.8.4. Provide meters on all natural gas mains.

24.8.5. Steam is sometimes available at various pressures for buildings served by the B3001 and

B9001 boiler plants only. All other areas are or will soon be decentralized. Contractors shall verify with government regarding the decentralization plan impact on each project.

24.9. Natural Gas Systems

Regulators: Replace natural gas regulators over 15 years old. Install sufficient isolation valves to repair units without shutting off entire system.

Distribution regulators: All distribution regulator sets shall be installed with:

Regulators that do not fail in the valve "open" position (e.g., do not use pilot loaded regulators since they fail to "open").

Valved, regulated bypasses to permit equipment repair or replacement.

Regulators that have valve stem indicators.

Sets that use one regulator for control of flow and a second regulator to monitor the flow.

24.10. Welding

All welding shall be performed by a welder certified IAW ANSI B31.1 or API 1104 codes.

Welds shall be made and inspected IAW ANSI B31.8 requirements.

24.11. Plumbing Piping

Piping installed on new systems shall be corrosion resistant or cathodically protected.

Provide necessary shutoff valves and identification.

24.11.1. Insulation of plumbing piping for both new and repair or replacement shall exceed by

30% the requirements of ASHRAE 90.1, International Plumbing Code, and UFGS specifications, whichever is greater.

24.11.2. Pipe Painting: All plumbing piping shall be painted to match existing on repairs and additions to existing systems

24.11.3. Pipe Labeling: All supply and return lines shall as a minimum be identified with markings denoting both flow direction and fluid transported.

24.12. Water Softeners/Water Treatment Equipment:

24.12.1. Water softeners are required on all open loop makeup systems including but not limited to steam boilers, humidifiers, and commercial domestic hot water systems (kitchens).

24.12.2. Softeners shall be properly sized to allow soft water to be introduced into systems at all times, including emergency shutdown.

24.12.3. Provide adequate water/conditioned water for all boiler systems.

24.12.4. Side stream pot feeders and annual chemical treatment shall be provided on all

"closed loop" systems including but not limited to heating water loops, chilled water loops, and fluid cooler applications.

25. Mechanical Engineering

25.1. General

25.1.1. All equipment shall be located with sufficient clearance for maintenance and be provided with access by means of identified panels, catwalks, platforms, stairs or ladders as required.

25.1.2. All supply and return lines shall be identified with markings denoting flow direction and fluid transport.

25.1.3. Isolation valves shall be provided at each piece of equipment.

25.1.4. Thermometers, pressure gauges and PT plugs shall be provided at all coils.

25.1.5. All condensation shall be drained into sanitary on all projects.

25.1.6. Floor mounted equipment shall be mounted on suitable concrete housekeeping pads extending 6 inches beyond the unit footprint.

25.1.7. Units shall be mounted on spring isolators.

25.1.8. Where pneumatic HVAC controls are utilized, control air shall be provided from compressors. Air is to be filtered and dehumidified. Air compressors shall be adequately sized to operate 1/3 on 2/3 off duty cycle.

25.1.9. Where DDC controls are installed, the controls shall be fully compatible with the existing control system and the base wide EMCS system.

25.1.10. All outdoor mechanical equipment shall be rated and installed for all weather conditions. These provisions shall include but not be limited to the following:

25.1.10.1 Low voltage electrical connections to outdoor mechanical equipment.

25.1.10.2 Heat tracing and insulation to prevent freezing.

25.1.10.3 Aluminum protective covering for outdoor insulation

25.1.10.4 Protection for pipe insulation in high traffic areas

25.1.10.5 Rain tight NEMA rated enclosures and watertight EMT as applicable.

25.1.10.6 Hail damage guards and high wind protection.

24.13.11. All installed control systems shall be integrated into the existing base wide VLAN system and shall be fully compatible with the existing EMCS system interface and software. Contractor shall contact and coordinate this connection with the acting EMCS manager.

25.2. Submittal Requirements for All Mechanical Projects

25.2.1. All O&M Manuals shall include a disk with the information saved in PDF format as well as the hard copy.

25.2.2. Final TAB, and Commissioning reports, shall be considered deliverables, and should be provided in both hard copy and electronic format. Electric format shall be in both a PDF format as well as a Microsoft Excel format. The reports including all comments made in reviews of the report should also be provided as PDF files. The basis for acceptance of the work should also accompany each of the reports. This should also summarize reasons for any deviations from the approved plan that was submitted prior to the testing activity.

25.2.3. Commissioning Manual

25.3. Natural Gas Systems

Replace natural gas regulators over 15 years old.

25.4. Welding

All welding shall be performed by a welder certified IAW ANSI B31.1 or API 1104 codes.

Welds shall be made and inspected IAW ANSI B31.8 requirements.

25.5. Piping

Piping installed on new systems shall be corrosion resistant or cathodically protected.

Provide necessary shutoff valves and identification.

25.5.1. Insulation of mechanical piping for both new and repair or replacement shall exceed by 30% the requirements of ASHRAE 90.1, International Mechanical Code, or the standard UFGS specification whichever is greater.

25.5.2. Pipe Painting: All plumbing piping shall be painted to match existing on repairs and additions to existing systems

25.5.3. Pipe Labeling: All supply and return lines shall as a minimum be identified with markings denoting both flow direction and fluid transported.

25.6. Water Softeners/Water Treatment Equipment:

25.6.1. Softeners shall be properly sized to allow soft water to be introduced into plant at all times, including emergency shutdown.

25.6.2. Provide soft water/conditioned water for all boiler systems.

25.6.3. Install adequate water treatment equipment on all boilers.

25.7. Underground Steam Systems:

25.7.1. Systems shall be designed in accordance with UFC 3-430-01FA Heating & Cooling Distribution Systems.

25.7.2. All steam and hot water distribution systems shall have a cost analysis performed comparing aboveground, surface utility, and underground conduit systems to determine the most economical system. Comparison should include cost, maintainability, and system performance.

25.7.3. Install cathodic protection systems.

25.8. Air Conditioning Systems and Chiller and Air Handling Units:

25.8.1. Locate equipment to allow reasonable access for maintenance. Avoid locating equipment on roofs due to maintenance problems. Provisions shall be made for removal of equipment for maintenance. Assure that proper distance between system components and walls is maintained to ensure ability to clean, repair, or replace system components.

25.8.2. All equipment which could be damaged by inclement weather or accidental damage shall be installed with protective equipment options or provisions including but not limited to hail guards for all air cooled condensers.

25.8.3. Whenever possible, install bypasses or some other means to ensure regular maintenance items such as strainers may be cleaned without plant shutdown.

25.8.4. Provide disconnect switches for remote controlled equipment like air handlers and exhaust fans.

25.8.5. Install sufficient insulation and vapor barrier on air conditioning ductwork and chilled water piping to prevent condensation. Duct liner shall be kept to a minimum for sound control only. The preferred thermal insulation shall be external wrap.

25.8.6. Provide adequate clear space around EMCS Data Gathering Panel (DGP) location of future FID and MUX and accessibility of maintenance personnel.

25.8.7. Install conduits entering panels from side and bottom of panel to prevent water from entering the panels and destroying the electronics.

25.8.8. Contractor shall furnish instruction manuals and spare parts inventory requirements for each piece of mechanical equipment. Contractor shall also furnish control diagrams IAW UFC 3-410-02. One is to be mounted on a wall in a frame, under glass in equipment rooms. The other is to be furnished to 72 ABW/CE to become part of the facility "As-Built" drawings.

25.8.9. All installed equipment utilizing refrigerants shall use a refrigerant which is CFC free.

25.8.10. Balancing dampers in ductwork shall be installed so as to be inaccessible to the occupants of the space being served, i.e. in the take offs from the duct branches rather than in the diffusers.

25.8.11. Mechanical rooms shall meet all requirements of ANSI/ ASHRAE Standard 15-2004.

25.8.12. All HVAC work shall be done in accordance with industrial standards including but not limited to ASHRAE standards and SMACNA standards for duct work.

25.8.13. The minimum thickness for pleated media shall be 4”.

25.8.14. All ductwork shall have a class A seal.

25.8.15. During Test and Balance filters shall be blanked off in a manner that does not generate air flow patterns that adversely affect fan performance and obtain an air filter pressure drop equal to 50 percent of the difference between the clean and dirty filter pressures.

This information is available from the filter manufacturer.

25.9. Compressed Air Systems

25.9.1. Compressed air, if required, shall be provided by base compressed air distribution system where available.

25.9.2. Where Base system is unavailable to the project site, provide stand-alone compressors and locate in facility mechanical room.

25.9.3. Provide necessary maintenance access for controls, CFC free refrigerated air dryers, and condensate handling equipment.

25.9.4. Provide enough ventilating air for mechanical room to prevent overheating of components.

25.9.5. Install thermal control valve in water outlet side of compressor to avoid excessive temperature and resulting compressor wear due to incorrect oil temperature, and excessive scaling.

25.9.6. Install inlet air filtration with instrumentation.

25.9.7. Install vibration isolation pads (neoprene component material is preferred), including flexible connections between the compressor and its associated piping, to prevent vibration damage to compressors.

25.9.8. Noise suppression shall be provided to keep compressor noise within Occupational Safety and Health (OSHA) limitations.

25.9.9. Oil free compressors shall be required for breathing air applications.

25.10. Infrared Heating Systems

25.10.1. Infrared heaters and system components shall be suspended or supported to prevent motion in both downward and all horizontal directions.

25.11. Base Refrigeration Management

25.11.1. The 72 ABW/CE is tasked to maintain a Refrigeration Management Program in accordance with the Air Force Refrigerant Management Handbook of June 1994, HQ AFMC Guidance and federal, state, and local standards.

25.11.2. HQ AFMC Guidance (10 Jul 95 letter from HQ AFMC/CECS) strictly prohibits contractors from purchasing, providing or removing any Class I refrigerants (R-11, R- 12, R-500, R-502, and R-503) to or from the government’s inventory to perform contracts.

25.11.3. Contractors are prohibited from purchasing, providing, or removing any Class II refrigerants (R-22, and R-123) to or from the government inventory. However, contractors may recover government refrigerants from contracted equipment into government-furnished containers.

25.11.4. Contractors shall use refrigerant R-134a or R-410A unless otherwise approved in writing by 72 ABW/CE.

25.11.5. It is the obligation of 72 ABW/CE to account for use of all contractor-provided refrigerants on Tinker AFB which is to be installed to contracted equipment, and this obligation consists of the following:

25.11.5.1. Track Environmental Protection Agency (EPA) certifications for refrigerant technicians and refrigerant recovery equipment.

25.11.5.2. Track refrigerant inventory levels for each type of refrigerant.

25.11.5.3. Report on refrigerant emissions.

25.12. Contractor Certifications and Recordkeeping for Refrigerant Management

In order to fulfill our tasking, it is required that Contractors furnish the following:

25.12.1. Prior to bringing technicians on base for installation or recovery of refrigerants to or from contracted equipment, the Contractor should submit to the Contracting Officer’s Technical Representative (COTR): 1) A copy of the refrigerant technician’s certification as required by 40 CFR (Code of Federal Regulations) part 82, subpart F; and 2) A copy of the certification to the EPA that the Contractor acquired refrigerant recovery equipment per 40 CFR 82.162.

25.12.2. Prior to final acceptance of contract work, the Contractor should provide a record of the amount of refrigerant installed with the contracted equipment or recovered from equipment contracted for demolition into government furnished containers. In the case of commissioning new or retrofitted equipment, the Contractor shall provide the refrigerant amount determined to be the “Full Charge” as defined in 40 CFR 82.152

25.12.3. The Contractor shall provide information concerning refrigerant emissions.

25.12.4. Prior to final acceptance of contract work, the Contractor shall provide to the COTR a record of any refrigerant losses to the atmosphere.

25.12.5. Included with all warranty work, the Contractor shall provide to the Contracting Officer a record of all refrigerant losses to the atmosphere. The Contractor shall assume that the amount of refrigerant added to the equipment to bring it back to “Full Charge” is the amount of refrigerant that was emitted to the atmosphere.

25.13. New Boilers Requirements:

25.13.1. Prior to construction contractors shall contact Tinker Air Force Base Environmental initial Notification Report Form and current environmental requirements for new boilers

25.13.2. New boiler shall meet the current metering, recording, and reporting requirements of

Tinker Air Force Base environment. Tinker Air Force Base Environmental shall be contacted for current environmental metering, recording, and report requirements for new boilers.

25.13.3. All boilers shall be provided with water treatment and full information for continuance of water treatment based on an independent third party water quality test of water at project location and the equipment manufacturer recommendations regarding water treatment for the equipment installed.

25.13.4. Water softeners and are required on all open loop makeup systems including but not limited to steam boilers, humidifiers, cooling towers and commercial domestic hot water systems (kitchens).

25.14. Electrical and VFD Requirements:

25.14.1. All VFDs shall meet the requirements for VFDs specified in the Tinker Air Force Base Electrical Standard (Appendix B).

25.14.2. For one to one applications for VFD for motors, the VFD be the means of disconnect and that it comply with all NEC rules for motor disconnect.

25.14.3. All control wiring shall be per the Tinker Air Force Base Electrical Standard (App B).

25.14.4. All wiring and conduit for mechanical systems shall be designed in compliance with and installed in accordance with the Tinker Electrical Base Standard.

25.15. Maintenance Engineering Requirements:

25.15.1. Designers and Construction Contractor shall contact Maintenance Engineering for current maintenance monitoring and baseline measurement requirements.

25.15.2. All rotating equipment over 50 HP be equipped with predictive maintenance monitoring over the existing EMCS system.

25.15.3. All large construction projects include equipment baseline measurement for rotating equipment over 50 HP after final commissioning and that the results be recorded on the monitoring system.