654-24-1-6090-0050 Attachment 4 VA Specifications 230510.docx

654-24-1-6090-0050 Attachment 4

SECTION 23 05 10

COMMON WORK RESULTS FOR BOILER PLANT AND STEAM GENERATION

GENERAL

DESCRIPTION

The requirements of this Section apply to all sections of Division 23 related to boiler plant and steam generation.

Definitions:

Exposed: Piping, ductwork, and equipment exposed to view in finished rooms.

Exterior: Piping, ductwork, and equipment exposed to weather be it temperature, humidity, precipitation, wind, or solar radiation.

Abbreviations/Acronyms:

ac: Alternating Current ACR: Air Conditioning and Refrigeration AI: Analog Input AISI: American Iron and Steel Institute AO: Analog Output ASJ: All Service Jacket AWG: American Wire Gauge BACnet: Building Automation and Control Networking Protocol BAg: Silver-Copper-Zinc Brazing Alloy BAS: Building Automation System BCuP: Silver-Copper-Phosphorus Brazing Alloy bhp: Brake Horsepower Btu: British Thermal Unit Btu/h: British Thermal Unit Per Hour CDA: Copper Development Association C: Celsius CD: Compact Disk CFM: Cubic Foot Per Minute CH: Chilled Water Supply CHR: Chilled Water Return CLR: Color CO: Carbon Monoxide COR: Contracting Officer’s Representative CPD: Condensate Pump Discharge CPM: Cycles Per Minute CPVC: Chlorinated Polyvinyl Chloride CRS: Corrosion Resistant Steel CTPD: Condensate Transfer Pump Discharge CTPS: Condensate Transfer Pump Suction CW: Cold Water CWP: Cold Working Pressure CxA: Commissioning Agent dB: Decibels dB(A): Decibels (A weighted) DDC: Direct Digital Control DI: Digital Input DO: Digital Output DVD: Digital Video Disc DN: Diameter Nominal DWV: Drainage, Waste and Vent EPDM: Ethylene Propylene Diene Monomer EPT: Ethylene Propylene Terpolymer ETO: Ethylene Oxide F: Fahrenheit FAR: Federal Acquisition Regulations FD: Floor Drain FED: Federal FG: Fiberglass FGR: Flue Gas Recirculation FOS: Fuel Oil Supply FOR: Fuel Oil Return FSK: Foil-Scrim-Kraft facing FWPD: Feedwater Pump Discharge FWPS: Feedwater Pump Suction GC: Chilled Glycol Water Supply GCR: Chilled Glycol Water Return GH: Hot Glycol Water Heating Supply GHR: Hot Glycol Water Heating Return gpm: Gallons Per Minute HDPE: High Density Polyethylene Hg: Mercury HOA: Hands-Off-Automatic hp: Horsepower HPS: High Pressure Steam (equal to/greater than 414 kPa (60 psig)) HPR: High Pressure Steam Condensate Return HW: Hot Water HWH: Hot Water Heating Supply HWHR: Hot Water Heating Return Hz: Hertz ID: Inside Diameter IPS: Iron Pipe Size kg: Kilogram klb: 1000 lb kPa: Kilopascal lb: Pound lb/hr: Pounds Per Hour L/s: Liters Per Second L/min: Liters Per Minute LPS: Low Pressure Steam (less than 103 kPa (15 psig)Safety valve must be set at or below 103kPa (15psig) LPR: Low Pressure Steam Condensate Gravity Return MAWP: Maximum Allowable Working Pressure MAX: Maximum MBtu/h: 1000 Btu/h MBtu: 1000 Btu MED: Medical m: Meter MFG: Manufacturer mg: Milligram mg/L: Milligrams Per Liter MIN: Minimum MJ: Megajoules ml: Milliliter mm: Millimeter MPS: Medium Pressure Steam (103-414 kPa [15-60 psig]) MPR: Medium Pressure Steam Condensate Return MW: Megawatt NC: Normally Closed NF: Oil Free Dry (Nitrogen) Nm: Newton Meter NO: Normally Open NOx: Nitrous Oxide NPT: National Pipe Thread NPS: Nominal Pipe Size OD: Outside Diameter OSD: Open Sight Drain OS&Y: Outside Stem and Yoke PC: Pumped Condensate PID: Proportional-Integral-Differential PLC: Programmable Logic Controllers PP: Polypropylene PPE: Personal Protection Equipment ppb: Parts Per Billion ppm: Parts Per Million PRV: Pressure Reducing Valve PSIA: Pounds Per Square Inch Absolute psig: Pounds Per Square Inch Gauge PTFE: Polytetrafluoroethylene PVC: Polyvinyl Chloride PVDC: Polyvinylidene Chloride Vapor Retarder Jacketing, White PVDF: Polyvinylidene Fluoride rad: Radians RH: Relative Humidity RO: Reverse Osmosis rms: Root Mean Square RPM: Revolutions Per Minute RS: Refrigerant Suction RTD: Resistance Temperature Detectors RTRF: Reinforced Thermosetting Resin Fittings RTRP: Reinforced Thermosetting Resin Pipe SCFM: Standard Cubic Feet Per Minute SPEC: Specification SPS: Sterile Processing Services STD: Standard SDR: Standard Dimension Ratio SUS: Saybolt Universal Second SW: Soft water SWP: Steam Working Pressure TAB: Testing, Adjusting, and Balancing TDH: Total Dynamic Head TEFC: Totally Enclosed Fan-Cooled TFE: Tetrafluoroethylene THERM: 100,000 Btu THHN: Thermoplastic High-Heat Resistant Nylon Coated Wire THWN: Thermoplastic Heat & Water-Resistant Nylon Coated Wire T/P: Temperature and Pressure USDA: U.S. Department of Agriculture V: Volt VAC: Vacuum VA: Veterans Administration VAC: Voltage in Alternating Current VA CFM: VA Construction & Facilities Management VA CFM CSS: Consulting Support Service VAMC: Veterans Administration Medical Center VHA OCAMES: Veterans Health Administration – Office of Capital Asset Management Engineering and Support VR: Vacuum condensate return WCB: Wrought Carbon Steel, Grade B WG: Water Gauge or Water Column WOG: Water, Oil, Gas

RELATED WORK

Section 01 00 00, GENERAL REQUIREMENTS.

Section 01 35 26, SAFETY.

Section 25 10 10, ADVANCED UTILITY METERING SYSTEM

APPLICABLE PUBLICATIONS

The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only (most recent edition). Where conflicts occur these specifications and the VHA standard shall govern.

Air Movement and Control Association (AMCA):

410-//1996// Recommended Safety Practices for Users and Installers of Industrial and Commercial Fans

American Society of Mechanical Engineers (ASME):

ASME Boiler and Pressure Vessel Code:

American Society for Testing and Materials (ASTM):

Association for Rubber Products Manufacturers (ARPM):

International Code Council, (ICC):

IMC-//2018// International Mechanical Code

Manufacturers Standardization Society (MSS) of the Valve and Fittings Industry, Inc.:

Military Specifications (MIL):

MIL-P-21035B-//2003// Paint High Zinc Dust Content, Galvanizing Repair (Metric) National Fire Protection Association (NFPA):

Department of Veterans Affairs (VA):

SUBMITTALS

Submittals, including number of required copies, shall be submitted.

Information and material submitted under this section shall be marked “SUBMITTED UNDER SECTION 23 05 10, COMMON WORK RESULTS FOR BOILER PLANT AND STEAM GENERATION”, with applicable paragraph identification.

All submittals in these sections are for equipment and materials that are interdependent parts of the entire systems; therefore, they shall all be submitted at the same time and complete including coordination/shop drawings, installation instructions, structural support, and structural piping calculations so that they may be reviewed as a system. The submittals for each Section shall be covered by one individual transmittal signed by the prime contractor and containing a statement that the contractor has fully reviewed all documents. Deviations from the contract documents, if any, shall be listed on the transmittal.

The contractor shall submit a site plan for the layout and the installation of rental boilers. This requirement shall be complied with even if the use of rental boilers is not planned and shall serve as part of the emergency plan if rental boilers become necessary at any time to meet N+1.

Test Plans: Submit safety test plan for temporary steam plant with temporary steam plant submittals. Submit all other test plans for plant and equipment 15 days prior to start of testing to allow for test modifications prior to start.

Contractor shall make all necessary field measurements and investigations to assure that the equipment and assemblies shall meet contract requirements, and all equipment that requires regular maintenance, calibration, etc, are accessible from the floor or permanent work platform. It is the contractor’s responsibility to ensure all submittals meet the Department of Veteran’s Affairs (VA) specifications and requirements and it is assumed by the VA that all submittals do meet the VA specifications unless the contractor has requested a variance in writing and approved by Contracting Officers Representative (COR) prior to the submittal. If at any time during the project, it is found that any item does not meet the VA specifications and there was no variance approval the contractor shall correct at no additional cost or time to the Government even if a submittal was approved.

If equipment is submitted which differs in arrangement from that shown, provide documented performance date from an actual site/installation proving equivalent performance, design standards and drawings that show the rearrangement of all associated systems. Additionally, any impacts on ancillary equipment or services such as foundations, piping, and electrical shall be the contractor’s responsibility to design, supply, and install at no additional cost or time to the Government. VA approval shall be given only if all features of the equipment and associated systems, including accessibility, are equivalent to that required by the contract.

Prior to submitting shop drawings for approval, the contractor shall certify in writing that manufacturers of all major items of equipment have each reviewed contract documents, and have jointly coordinated and properly integrated their equipment and controls to provide a complete and efficient installation.

Submittals and shop drawings for interdependent items, containing applicable descriptive information, shall be furnished together. Coordinate and properly integrate materials and equipment to provide a completely compatible and efficient installation.

Coordination/Shop Drawings:

Submit complete consolidated and coordinated shop drawings for all new systems, and for existing systems that are in the same areas.

The coordination/shop drawings shall include plan views, elevations and sections of all systems and shall be on a scale of not less than 1:32 (3/8-inch equal to one foot). Clearly identify and dimension the proposed locations of the principal items of equipment. The drawings shall clearly show locations and adequate clearance for all equipment, piping, valves, control panels and other items. Show the access means for all items requiring access for operations and maintenance. Provide detailed coordination/shop drawings of all piping and duct systems. The drawings should include all lockout/tagout points for all energy/hazard sources for each piece of equipment. Coordinate lockout/tagout procedures and practices with local VA requirements.

Do not install equipment foundations, equipment or piping until coordination/shop drawings have been approved.

In addition, for HVAC systems, provide details of the following:

Mechanical equipment rooms.

Hangers, inserts, supports, and bracing.

Pipe sleeves.

Duct or equipment penetrations of floors, walls, ceilings, or roofs.

Manufacturer's Literature and Data: Include full item description and optional features and accessories. Include dimensions, weights, materials, applications, standard compliance, model numbers, size, and capacity. Submit under the pertinent section rather than under this section.

Submit belt drive with the driven equipment. Submit selection data for specific drives when requested by the COR.

Submit electric motor data and variable speed drive data with the driven equipment.

Equipment and materials identification.

Fire-stopping materials.

Hangers, inserts, supports and bracing. Provide complete stress analysis for variable spring and constant support hangers.

Wall, floor, and ceiling plates.

Rigging Plan: Provide documentation of the capacity and weight of the rigging and equipment intended to be used. The rigging plan shall include the path of travel of the load, the staging area and intended access, and qualifications of the operator and signal person.

Maintenance Data and Operating Instructions:

Maintenance and operating manuals in accordance with Section 01 00 00, GENERAL REQUIREMENTS, paragraph, INSTRUCTIONS, for systems and equipment.

Complete operating and maintenance manuals including wiring diagrams, technical data sheets, information for ordering replacement parts, and troubleshooting guide:

Include complete list indicating all components of the systems.

Include complete diagrams of the internal wiring for each item of equipment.

Diagrams shall have their terminals identified to facilitate installation, operation, and maintenance.

Provide a listing of recommended replacement parts for keeping in stock supply, including sources of supply, for equipment. Include in the listing belts for equipment: Belt manufacturer, model number, size, and style, and distinguished whether of multiple belt sets.

Boiler Plant Maintenance Data and Operating Instructions:

Provide two bound copies and two electronic versions on .pdf. Deliver to the COR not less than 10 days prior to completion of a phase or final inspection.

Include all new and temporary equipment and all elements of each assembly.

Data sheet on each device listing model, size, capacity, pressure, speed, horsepower, pump impeller size, other data.

Manufacturer’s installation, maintenance, repair, and operation instructions for each device. Include assembly drawings and parts lists. Include operating precautions and reasons for precautions.

Lubrication instructions including type and quantity of lubricant.

Schematic diagrams and wiring diagrams of all control systems corrected to include all field modifications.

Description of boiler firing and operating sequence including description of relay and interlock positions at each part of the sequence.

Set points of all interlock devices.

Trouble-shooting guide for control systems.

Operation of the combustion control system.

Emergency procedures.

Control system programming information for parameters, such as set points, that do not require services of an experienced technician.

Step-by-Step written instructions that are specific for the system installed on testing all safety devices. The instructions should be in the same format and in compliance and equivalent to the VHA Boiler Plant Safety Devices Testing Manual for each test. All safety devices listed in the manual shall be tested and documentation provided certifying completion.

Provide copies of approved HVAC equipment submittals to the TAB or Commissioning Subcontractor.

Completed System Readiness Checklist provided by the Commissioning Agent and completed by the contractor.

Submit training plans and instructor qualifications.

QUALITY ASSURANCE

Mechanical, electrical, and associated systems shall be safe, reliable, efficient, durable, easily and safely operable and maintainable, easily and safely accessible, and in compliance with applicable codes as specified. All VA safety device requirements shall be complied with regardless of the size, type, or operating pressure of boiler to include condensing boilers, hot water boilers for heating systems, as defined in the VHA Boiler Plant Safety Devices Testing Manual. The systems shall be comprised of high quality institutional-class and industrial-class products of manufacturers that are experienced specialists in the required product lines. All construction firms and personnel shall be experienced and qualified specialists in industrial and institutional HVAC or steam boiler plant construction, as applicable.

Products Criteria:

Standard Products: Material and equipment shall be the standard products of a manufacturer regularly engaged in the manufacture of the products for at least three years (or longer as specified elsewhere). The design, model, and size of each item shall have been in satisfactory and efficient operation on at least three installations for approximately three years. However, digital electronics devices, software, and systems such as controls, instruments, computer work station, shall be the current generation of technology and basic design that has a proven satisfactory service record of at least three years. See other specification sections for any exceptions and/or additional requirements.

Refer to all other sections for quality assurance requirements for systems and equipment specified therein.

All items furnished shall be free from defects that would adversely affect the performance, maintainability and appearance of individual components and overall assembly.

The products and execution of work specified in Division 33 shall conform to the referenced codes and standards as required by the specifications. Local codes and amendments shall be enforced, along with requirements of local utility companies. The most stringent requirements of these specifications, local codes, or utility company requirements shall always apply. Any conflicts shall be brought to the attention of the COR.

Multiple Units: When two or more units of materials or equipment of the same type or class are required, these units shall be of the same manufacturer and model number, or if different models are required, they shall be of the same manufacturer and identical to the greatest extent possible (i.e., same model series).

Assembled Units: Performance and warranty of all components that make up an assembled unit shall be the responsibility of the manufacturer of the completed assembly.

Nameplates: Nameplate bearing manufacturer's name or identifiable trademark shall be securely affixed in a conspicuous place on equipment, or name or trademark cast integrally with equipment, stamped, or otherwise permanently marked on each item of equipment.

Use of asbestos products or equipment or materials containing asbestos is prohibited.

Boiler Plant Equipment Service Providers: Service providers shall be authorized and trained by the manufacturers of the equipment supplied. These providers shall be capable of responding onsite and provide acceptable service to restore boiler plant operations within 4 hours of receipt of notification by phone, e-mail, or fax in event of an emergency, such as the shutdown of equipment; or within 24 hours in a non-emergency. Submit names, mail and e-mail addresses and phone numbers of service personnel and companies providing service under these conditions for (as applicable to the project): burners, burner control systems, boiler control systems, pumps, critical instrumentation, computer workstation and programming.

Mechanical Systems Welding: Before any welding is performed, the contractor shall submit a certificate certifying that welders comply with the following requirements:

Qualify welding processes and operators for piping according to ASME BPVC Section IX. Provide proof of current certification.

Comply with provisions of ASME B31 series "Code for Pressure Piping".

Certify that each welder and welding operator has passed American Welding Society (AWS) qualification tests for the welding processes involved, and that certification is current.

All welds shall be stamped according to the provisions of the AWS or ASME as required herein and by the associated code.

Manufacturer's Recommendations: Where installation procedures or any part thereof are required to be in accordance with the recommendations of the manufacturer of the material being installed, printed copies of these recommendations shall be furnished to the COR with submittals. Installation of the item shall not be allowed to proceed until the recommendations are received. Failure to furnish these recommendations can be cause for rejection of the material and removal by the Contractor and no additional cost or time to the Government.

Execution (Installation, Construction) Quality:

Apply and install all items in accordance with manufacturer's written instructions. Refer conflicts between the manufacturer's instructions and the contract documents to the COR for resolution. Provide written hard copies and computer files on .pdf of manufacturer’s installation instructions to the COR with submittals prior to commencing installation of any item. Installation of the item shall not be allowed to proceed until the recommendations are received and approved by VA. Failure to furnish these recommendations is a cause for rejection of the material.

All items that require access, such as for operating, cleaning, servicing, maintenance, and calibration, shall be easily and safely accessible by persons standing at floor level, or standing on permanent platforms, without the use of portable ladders. Examples of these items include but are not limited to: all types of valves, filters and strainers, transmitters, control devices. Prior to commencing installation work, refer conflicts between this requirement and contract documents to the COR for resolution. Failure of the Contractor to resolve or point out any issues shall result in the Contractor correcting at no additional cost or time to the Government.

Complete coordination/shop drawings shall be required in accordance with paragraph, SUBMITTALS. Construction work shall not start on any system until the coordination/shop drawings have been approved by VA.

Workmanship/craftsmanship shall be of the highest quality and standards. The VA reserves the right to reject any work based on poor quality of workmanship this work shall be removed and done again at no additional cost or time to the Government.

Upon request by Government, provide lists of previous installations for selected items of equipment. Include contact persons who shall serve as references, with current telephone numbers and e-mail addresses.

Guaranty: Warranty of Construction, FAR Clause 52.246-21.

DELIVERY, STORAGE AND HANDLING

Protection of Equipment:

Equipment and material placed on the job site shall remain in the custody of the contractor until phased acceptance, whether or not the Government has reimbursed the contractor for the equipment and material. The contractor is solely responsible for the protection of such equipment and material against any damage or theft.

Large equipment such as boilers, tanks, economizers, heat exchangers, and fans if shipped on open trailer trucks shall be covered with shrink on plastics or waterproof tarpaulins that provide protection from exposure to rain, road salts and other transit hazards. Protection shall be kept in place until equipment is moved into a building or installed as designed.

Repair damaged equipment in first class, new operating condition and appearance; or replace same as determined and directed by the COR. Such repair or replacement shall be at no additional cost or time to the Government.

Protect interiors of new equipment and piping systems against entry of foreign matter. Clean both inside and outside before painting or placing equipment in operation.

Existing equipment and piping being worked on by the contractor shall be under the custody and responsibility of the contractor and shall be protected as required for new work.

Protect plastic piping and tanks from ultraviolet light (sunlight).

Cleanliness of Piping and Equipment Systems:

Exercise care in storage and handling of equipment and piping material to be incorporated in the work. Remove debris arising from cutting, threading, and welding of piping.

Piping systems shall be flushed, blown, or pigged as necessary to deliver clean systems.

Clean interior of all tanks prior to delivery for beneficial use by the Government.

Boilers shall be left clean following final internal inspection by Government insurance representative or inspector.

Contractor shall be fully responsible for all costs, damage, and delay arising from failure to provide clean systems.

AS-BUILT DOCUMENTATION

Submit manufacturer’s literature and data updated to include submittal review comments and any equipment substitutions.

Submit operation and maintenance data updated to include submittal review comments, VA approved substitutions and construction revisions shall be in electronic version on .pdf inserted into a three-ring binder. All aspects of system operation and maintenance procedures, including applicable piping isometrics, wiring diagrams of all circuits, a written description of system design, control logic, and sequence of operation shall be included in the operation and maintenance manual. The operations and maintenance manual shall include troubleshooting techniques and procedures for emergency situations. Notes on all special systems or devices shall be included. A List of recommended spare parts (manufacturer, model number, and quantity) shall be furnished. Information explaining any special knowledge or tools the owner shall be required to employ, shall be inserted into the As-Built documentation.

The as-built drawings shall indicate the location and type of all lockout/tagout points for all energy sources for each individual piece of equipment and pumps to include breaker location and numbers, valve tag numbers, etc. Coordinate lockout/tagout procedures and practices with local VA requirements. Demonstrating the lockout points to the local VA as the equipment is installed and has the possibility of being energized.

Certification documentation shall be provided to COR five working days prior to submitting the request for final inspection. The documentation shall include all test results, the names of individuals performing work for the testing agency on this project, detailed procedures followed for all tests, and provide documentation/certification that all results of tests were within limits specified. Test results shall contain written sequence of test procedure with written test results annotated at each step along with the expected outcome or setpoint. The results shall include all readings, including but not limited to data on device (make, model and performance characteristics), normal pressures, switch ranges, trip points, amp readings, and calibration data to include equipment serial numbers or individual identifications, etc.

JOB CONDITIONS – WORK IN EXISTING BOILER PLANT

Plant Operation: Government employees shall be continuously operating and managing all plant facilities, including temporary facilities, that serve the steam, condensate, and hot water requirements of VA Sierra Nevada Health Care System (VASNHCS).

Maintenance of Steam Supply and Condensate Return Service: Schedule all work to permit continuous steam and condensate service at pressures and flow rates as required by VASNHCS. At all times, there shall be one spare boiler available and one spare pump for each service available, in addition to those required for serving the load demand. The spare boiler and pumps shall be capable of handling the loads that may be imposed if the operating boiler or pump fails.

Steam and Condensate Service Interruptions: Limited steam and condensate service interruptions, as required for interconnections of new and existing systems, shall be permitted by the COR during periods when the steam demands are not critical to the operation of the VAMC. These non-critical periods are limited to between 8 pm and 5 am during the non-heating season. Provide at least 10 working days advance notice to the COR. The request shall include a detailed plan on the proposed shutdown and the intended work to be done along with manpower levels. All equipment and materials shall be onsite and verified with plan 5 days prior to the shutdown or it shall be rescheduled.

Phasing of Work: Comply with all requirements shown on contract documents. Contractor shall submit a complete detailed phasing plan/schedule with manpower levels prior to commencing work. The phasing plan shall be detailed enough to provide milestones in the process that can be verified.

Plant Working Environment: Always maintain the architectural and structural integrity of the plant and the building and the working environment. Refer to the HVAC Design manual for minimum plant temperature requirements within the boiler plant. Limit the opening of doors, windows or other access openings to brief periods as necessary for rigging purposes. Storm water or ground water leakage is prohibited. Provide daily clean-up of construction and demolition debris on all floor surfaces and on all equipment being operated by VA. Maintain all egress routes and safety systems/devices.

All contractor tools, equipment, office/storage trailers, etc. shall be removed within thirty days from the final acceptance of the project. If the project is to be completed in phases all tools and equipment shall be the responsibility of the contractor to store in a secure location outside of the boiler plant, where it does not interfere with the daily operations of the boiler plant, between the phases.

Acceptance of Work for Government Operation: As new equipment, systems and facilities are made available for operation and these items are deemed of beneficial use to the Government, inspections shall be made, and tests shall be performed. Based on the inspections, a list of contract deficiencies shall be issued to the contractor. No boiler, system, or piece of equipment shall be accepted for beneficial use until ALL safety devices have been tested and passed in accordance with the VHA Boiler Plant Safety Devices Testing Manual; all equipment that requires regular maintenance, calibration, etc. are accessible from the floor or permanent work platform; and all control systems are proven to be fully operational without faults or shutdowns for a period not less than 21 days of continuous operation without interaction from any person other than that of normal operational duty. After correction of deficiencies as necessary for beneficial use, the Contracting Officer shall process necessary acceptance and the equipment shall then be under the control and operation of Government personnel.

Temporary Facilities: Refer to paragraph, TEMPORARY PIPING AND EQUIPMENT in this section.

Third Party Inspections/reports/results The VA shall be copied on all third-party communications for inspections, reports, testing results etc.

The COR shall receive a minimum of one week notice of any third-party inspections on VA property.

The COR shall receive the same reports, test results as the contractor at the time of the report directly from the 3rd party.

PRODUCTS

FACTORY-ASSEMBLED PRODUCTS

Provide maximum standardization of components to reduce spare part requirements.

Performance and warranty of all components that make up an assembled unit shall be the responsibility of the manufacturer of the completed assembly.

All components of an assembled unit need not be products of same manufacturer.

Constituent parts that are alike shall be products of a single manufacturer.

Components shall be compatible with each other and with the total assembly for intended service.

Contractor shall guarantee performance of assemblies of components and shall repair or replace elements of the assemblies as required to deliver specified performance of the complete assembly.

Equipment and components of equipment shall bear manufacturer's name and trademark, model number, serial number and performance data on a nameplate securely affixed in a conspicuous place, or cast integral with, stamped, or otherwise permanently marked upon the components of the equipment.

Major items of equipment, which serve the same function, shall be the same make and model. Exceptions shall be approved by the VA but may be permitted if performance requirements cannot be met.

COMPATIBILITY OF RELATED EQUIPMENT

Equipment and materials installed shall be compatible in all respects with other items being furnished and with existing items so that the result shall be a complete and fully operational plant that conforms to contract requirements.

DRIVE GUARDS

For machinery and equipment, provide guards as shown in AMCA 410 for belts, chains, couplings, pulleys, sheaves, shafts, gears, and other moving parts regardless of height above the floor to prevent damage to equipment and injury to personnel. Drive guards may be excluded where motors and drives are inside factory-fabricated air handling unit casings.

Pump shafts and couplings shall be fully guarded by a sheet steel guard, covering coupling and shaft but not bearings. Material shall be minimum 16-gauge sheet steel; all edges shall be hemmed, and ends shall be bent into flanges and the flanges drilled and attached to pump base with minimum of four 6 mm (1/4 inch) bolts. Reinforce guard as necessary to prevent side play forcing guard onto couplings.

V-belt and sheave assemblies shall be totally enclosed, firmly mounted, and non-resonant. Guard shall be an assembly of minimum 22-gauge sheet steel and expanded or perforated metal to permit observation of belts. 25 mm (1 inch) diameter hole shall be provided at each shaft centerline to permit speed measurement.

Materials: Sheet steel, expanded metal or wire mesh rigidly secured to be removable without disassembling pipe, duct, or electrical connections to equipment.

Access for Speed Measurement: 25 mm (1 inch) diameter hole at each shaft center.

LIFTING ATTACHMENTS

Provide equipment with suitable lifting attachments to enable equipment to be lifted in its normal position. Lifting attachments shall withstand any handling conditions that might be encountered, without bending or distortion of shape, such as rapid lowering and braking of load.

ELECTRIC MOTORS

All material and equipment furnished, and installation methods shall conform to the applicable code requirements. Provide all electrical wiring, conduit, and devices necessary for the proper connection, protection, and operation of the systems. Provide special energy efficient premium efficiency type motors as scheduled.

TEMPORARY BOILER PLANT INSTALLATION

Provide temporary facilities to replace all functions of the existing boiler plant during the construction period. Temporary facilities shall remain in operation until all new facilities are accepted for beneficial use. Temporary facilities shall provide same quality and capacity of service as existing facilities.

Refer to contract documents for arrangement and location of temporary facilities and for equipment performance requirements.

Temporary equipment may be new or previously used. Previously used equipment shall show no evidence of wear or deterioration that would affect the safe, reliable operation.

Equipment to be utilized in the new plant shall not be used in the temporary plant.

Remove all temporary facilities from Government property after final use. Provide COR 10 working days advance notice prior to removal.

Equipment shall be clean inside and outside.

Boilers and accessories shall have the following:

Design pressure exceeding maximum safety valve set pressure.

Construction and accessories in compliance with ASME Boiler and Pressure Vessel Code, Section I.

After installation and prior to operation, and every six months after the initial inspection at the contractor’s expense provide internal and external inspections by authorized inspector certified by National Board of Boiler and Pressure Vessel Inspectors, and/or a state/local boiler inspector. Inspections shall include but not limited to the following:

Installation of all piping systems meet code requirements Boiler Controls and safety devices are fully functional and meet or exceed all code requirements.

Safety Valves have been tested within six months and by what method. In accordance with the National Board Inspection Code.

Inspector shall certify boilers are in compliance with all applicable codes and safe for operation, after each inspection Submit signed report to the contractor and the COR shall receive a copy of the inspection report.

Photographic evidence shall be taken of the condition of the boiler internally of both the water and fire sides at time of delivery and prior to operation and once again when the prior to the temporary boiler leaving the site. This is to ensure the VA is not charged to descale the boilers.

Steam output flow range and pressure as shown on contract documents.

Dual low water cutoffs, dual high steam pressure cutouts, high water alarm.

Calibrated steam pressure gauge, 150 mm (6 inch) minimum diameter.

One set of spares for all gaskets and water column gauge glasses.

Emergency power connection for continuous operation during utility outage.

Burners, accessories, and fuel trains shall have the following:

Automatic operation over entire firing range. Turndown capability 6/1 or greater.

The burner shall be tuned once it is operational, and the overall efficiency shall be 80% or greater.

Comply with NFPA 85 regardless of burner input rating.

All safety devices UL listed for the service.

Dual fuel capability.

Filtration devices at entrance to each fuel train designed to protect all downstream devices from clogging or plugging.

Pressure regulating valves on main gas and igniter (pilot) gas.

Pressure gauges at burners and outlets of pressure regulating valves.

One set of spare drive belts for all belt-driven equipment.

Burner control (Flame Safeguard) system shall have the following:

Automatic operation, self-checking circuits.

UL listed; FM approved.

Self-checking ultraviolet flame detectors. Infrared flame detectors with self-checking amplifiers permitted on fire tube boilers.

Provide one spare scanner and control chassis for each type utilized.

Combustion Control System: Automatic control of steam pressure, with provision for manual control.

Feedwater System:

Provide system, including feedwater deaerator, to furnish minimum water temperature of 104 degrees C (220 degrees F), pressure and quality recommended by boiler manufacturer. Maximum oxygen content of feedwater from deaerator 12 ppb.

Capacity shall exceed maximum steam flow requirement of VASNHCS.

Provide automatic feedwater deaerator water level control and high and low-level alarms as defined in the VHA Boiler Plant Safety Devices Testing Manual.

Provide one full size redundant feed pump.

Automatic boiler water level control with three-valve bypass.

Automatic water softener for make-up water.

Prior to operation, provide internal inspection of feedwater deaerator by Authorized Inspector certified by the National Board of Boiler and Pressure Vessel Inspectors. Submit signed report. Inspector shall certify deaerator as clean and safe for operation.

Instrumentation:

Record steam flow rate and provide totalizer for each boiler.

Pressure gauge for main stream, feedwater header, fuel oil and natural gas headers.

Chemical Treatment System: Provide individual pump type systems to deliver proper chemicals to each boiler. Water quality shall be maintained as directed by contractor-retained water treatment firm. All chemicals shall be FDA approved for use where steam contacts food or is used for humidification. Provide chemical treatment, or maintain existing chemical treatment, which protects all site coils and condensate lines from corrosion.

Blowoff System: Provide system to collect boiler bottom blowoff and to discharge it to sanitary sewer at temperature not exceeding 65 degrees C (150 degrees F).

Fuel System: Provide systems to furnish sufficient natural gas and No. 2 fuel oil to generate steam to satisfy maximum steam flow demand of VAMC. Comply with NFPA 31 and NFPA 54. Provide filtration systems to protect pumps, flow meters, and pressure control valves. Fuel oil systems shall operate with no air entrainment or pump cavitation.

Access Platforms and Ladders: Provide for access to all valves, controls, and instruments not accessible to personnel standing on floor. Design of platforms and ladders shall comply with OSHA requirements. Install stairs, railing and platform as necessary for safety of operators.

Enclosure of Temporary Equipment: Provide clean, dry, ventilated, lighted, heated shelter for all equipment and for operating personnel. Heating system shall maintain the minimum temperature requirements within the HVAC Design Manual under all weather conditions and when boilers are not in operation. Shelter construction shall comply with all state and local codes.

Provisions shall be made for operators control room within the line of sight and adjacent to the temporary equipment to allow 24/7 oversight of the systems.

Pipe, Stack, and Breeching Supports: Support all hot systems on roller and spring hangers. Anchor and support all systems in compliance with recommendations and requirements of ASME B31.1 and MSS SP-58.

Pipe, Equipment, Boiler Stack and Breeching Insulation: Provide material and thickness as specified for permanent installation, except maximum thickness shall be 50 mm (2 inches) and all pipe insulation may be fiberglass with all-service jackets.

Power Supply: Provide full time power and emergency power to serve full load operation of all equipment in temporary boiler plant.

Repairs and Maintenance: Contractor shall furnish labor and material for all repairs and safety device testing at no additional cost or time to the Government. Malfunctions that reduce the steam supply to the facility shall be repaired within four hours of notice. Other repairs shall be accomplished within 24 hours of notice. Routine maintenance requiring standard tools and supplies and less than one man-hour per day shall be performed by the Government. Cleaning made necessary by Government operation shall be performed by the Government.

Provide seismic Anchorage of Equipment and Bracing of Piping, Stacks and Breeching.

GALVANIZED REPAIR COMPOUND

Mil-P-21035B, paint form.

PIPE PENETRATIONS

Install sleeves during construction for other than blocked out floor openings for risers in mechanical bays.

To prevent accidental liquid spills from passing to a lower level, provide the following:

For sleeves: Extend sleeve 25 mm (1 inch) above finished floor and provide sealant for watertight joint.

For blocked out floor openings: Provide 40 mm (11/2 inch) angle set in silicone adhesive around opening.

For drilled penetrations: Provide 40 mm (11/2 inch) angle ring or square set-in silicone adhesive around penetration.

Penetrations through beams or ribs are prohibited but may be installed in concrete beam flanges. Any deviation from these requirements shall receive prior approval of COR.

Sheet Metal, Plastic, or Moisture-resistant Fiber Sleeves: Provide for pipe passing through floors, interior walls, and partitions, unless brass or steel pipe sleeves are specifically called for below.

Cast Iron or Zinc Coated Pipe Sleeves: Provide for pipe passing through exterior walls below grade. Make space between sleeve and pipe watertight with a modular or link rubber seal. Seal shall be applied at both ends of sleeve.

Galvanized Steel or an alternate Black Iron Pipe with asphalt coating Sleeves: Provide for pipe passing through concrete beam flanges, except where brass pipe sleeves are called for. Provide sleeve for pipe passing through floor of mechanical rooms, laundry work rooms, and animal rooms above basement. Except in mechanical rooms, connect sleeve with floor plate.

Brass Pipe Sleeves: Provide for pipe passing through quarry tile, terrazzo, or ceramic tile floors. Connect sleeve with floor plate.

Sleeves are not required for wall hydrants for fire department connections or in drywall construction.

Sleeve Clearance: Sleeve through floors, walls, partitions, and beam flanges shall be one inch greater in diameter than external diameter of pipe. Sleeve for pipe with insulation shall be large enough to accommodate the insulation. Interior openings shall be caulked tight with fire stopping material and sealant to prevent the spread of fire, smoke, and gases.

Sealant and Adhesives: Shall be as specified in Section 07 92 00, JOINT SEALANTS.

PENETRATIONS

Provide curbs for roof mounted piping, ductwork, and equipment. Curbs shall be 457 mm (18 inches) high with continuously welded seams, built-in cant strip, interior baffle with acoustic insulation, curb bottom, hinged curb adapter.

Provide firestopping for openings through fire and smoke barriers, maintaining minimum required rating of floor, ceiling, or wall assembly. See section 07 84 00, FIRESTOPPING.

SPECIAL TOOLS AND LUBRICANTS

Furnish, and turn over to the COR, tools not readily available commercially, that are required for disassembly or adjustment of equipment and machinery furnished.

Grease Guns with Attachments for Applicable Fittings: One for each type of grease required for each motor or other equipment.

Refrigerant Tools: Provide system charging/Evacuation equipment, gauges, fittings, and tools required for maintenance of furnished equipment.

Tool Containers: Hardwood or metal, permanently identified for intended service and mounted, or located, where directed by the COR.

Lubricants: A minimum of 0.95 L (1 quart) of oil, and 0.45 kg (1 pound) of grease, of equipment manufacturer's recommended grade and type, in unopened containers and properly identified as to use for each different application.

ASBESTOS

Materials containing asbestos are prohibited.

EXECUTION

GENERAL

If an installation is unsatisfactory to the COR, the contractor shall correct the installation at no additional cost or time to the Government.

ARRANGEMENT AND INSTALLATION OF EQUIPMENT AND PIPING

Location of piping, sleeves, inserts, hangers, and equipment, access provisions shall be coordinated with the work of all trades. The coordination/shop drawings shall be submitted for review. Locate piping, sleeves, inserts, hangers, ductwork, and equipment clear of windows, doors, openings, light outlets, and other services and utilities. Equipment coordination/shop drawings shall be prepared to coordinate proper location and personnel access of all facilities. The drawings shall be submitted for review. Follow manufacturer's published recommendations for installation methods not otherwise specified.

Operating Personnel Access and Observation Provisions: Select and arrange all equipment and systems to provide clear view and easy access, without use of portable ladders, for maintenance and operation of all devices including, but not limited to: all equipment items, valves, filters, strainers, transmitters, sensors, control devices. All gauges and indicators shall be clearly visible by personnel standing on the floor or on permanent platforms. Do not reduce or change maintenance and operating space and access provisions that are shown on the contract documents.

Boiler Control Panel Locations: Locate and orient panels so that operating personnel standing in front of boilers can view the control switches and displays on the panel face for all boilers on the aisle. Panels mounted on the sides near the front of fire tube boilers are prohibited.

Boiler and Economizer Access Platforms: Arrange piping and equipment to allow access by a person standing on the platforms to all valves located above the boilers, to boiler manways located on top of the boilers, and to all economizer valves and access panels.

Equipment and Piping Support: Coordinate structural systems necessary for pipe and equipment support with pipe and equipment locations to permit proper installation.

Location of pipe sleeves, trenches and chases shall be accurately coordinated with equipment and piping locations.

Cutting Holes:

Cut holes through concrete and masonry by rotary core drill. Pneumatic hammer, impact electric, and hand or manual hammer type drill is prohibited, except as permitted by COR where working area space is limited.

Locate holes to avoid interference with structural members such as slabs, columns, ribs, beams or reinforcing. Holes shall be laid out in advance and drilling done only after approval by COR. If the contractor considers it necessary to drill through structural members, this matter shall be referred to COR for approval.

Do not penetrate membrane waterproofing.

Minor Piping: Generally, small diameter pipe runs from drips and drains, water cooling, and other service are not shown but shall be provided.

Electrical Interconnection of Instrumentation or Controls: This generally not shown but shall be provided. This includes interconnections of sensors, transmitters, transducers, control devices, control and instrumentation panels, instruments, and computer workstations. Devices shall be located so they are easily accessible for testing, maintenance, calibration, etc. The COR has the final determination on what is accessible and what is not. Comply with NFPA 70.

Protection and Cleaning:

Equipment and materials shall be carefully handled, properly stored, and adequately protected to prevent damage before and during installation, in accordance with the manufacturer's recommendations and as approved by the COR. Damaged or defective items in the opinion of the COR, shall be replaced.

Protect all finished parts of equipment, such as shafts and bearings where accessible, from rust prior to operation by means of protective grease coating and wrapping. Close pipe openings with caps or plugs during installation. Tightly cover and protect fixtures and equipment against dirt, water chemical, or mechanical injury. At completion of all work thoroughly clean fixtures, exposed materials, and equipment.

Install gauges, thermometers, valves, and other devices with due regard…