RFI answers attachment 2 26 05 00 to 26 51 00 Common Electrical to Lighting.pdf

HVAC 23 00 00 -2

USAFR ZQEL 19-0014

910th Airlift Wing Youngstown Air Reserve Station Construct Handicap Ramp/Steps/Sidewalks

4. AMCA - Air Movement and Control Association

5. ANSI - American National Standards Institute

6. ARI - Air Conditioning and Refrigeration Institute

7. ASA - Acoustical Society of America

8. ASHRAE - American Society of Heating, Refrigerating and Air Conditioning

Engineers

9. ASME - American Society of Mechanical Engineers

10. ASSE - American Society of Sanitary Engineers

11. ASTM - American Society of Testing and Materials

12. AWWA - American Water Works Association

13. CGA - Compressed Gas Association

14. CISPT - Cast Iron Soil Pipe Institute

15. International Fuel Gas Code

16. MSS - Manufacturers Standardization Society Of The Valve and Fittings

Industry, Inc.

17. NEBB National Environmental Balancing Bureau.

18. NEC - National Electrical Code

19. NEMA - National Electrical Manufacturers Association

20. NFPA - National Fire Protection Association

21. OAC - Ohio Administrative Code

22. ODH Ohio Department of Health

23. DOE – Department of Energy (US Government

24. ODMH - Ohio Department of Mental Health

25. ODOT - Ohio Department of Transportation

26. Plumbing and Drainage Institute(PDI)

27. SAE Society of Automotive Engineers

28. SMACNA - Sheet Metal and Air Conditioning Contractors National

Association

29. UL - Underwriters' Laboratories

30. EJMA -Expansion Joint Manufacturers' Association, Inc.

E. The following codes apply to this work:

1. Local

a. Ohio Building Code

b. Fire Code State of Ohio

2. State of Ohio

a. Ohio Building Code

b. Energy Code

c. Mechanical Code

d. Plumbing Code

e. Fire Code (OAC 1301:7 and 4101:21 thru 10)

3. National

a. National Fire Protection Association (NFPA) Codes as listed in subsequent Sections.

b. ANSI Welding Code B31.1.0.

c. All applicable OSHA Requirements

d. ASHRAE 62, ASHRAE 90.1, ASHRAE 15

4. Institutional DOD - Unified Facilities Criteria, Latest sections as applicable

910TH Airlift Wing Youngstown Air Reserve Station ZQEL 19-0014

HVAC Systems Balancing 23 05 93 -4

C. Coordinate any utility service shutdown or outages with the Contracting Officer.

Shutdowns shall conform to all utility company requirements. Avoid inconveniencing the Contracting Officer and provide temporary service during the curtailment, as required. Arrange for temporary service or bypass.

D. At least two working days prior to construction in an area which may involve underground utility facilities, the Contractor shall notify the “Contracting Officer” and the registered utility protection service. A minimum of 48 hours notice, no longer than 10-day notice is required prior to digging the facilities.

1. Utilities Protection

Phone . . . . . . . 1-800-362-2764

1.10 CONTRACTOR DESIGN/DETAILING

A. The Contractor is required to include the design of component parts, sub-systems and installation details as required by the Specifications, as indicated on the Drawings and as required for a complete and operating installation. This design work shall be done after all equipment manufacturers and material types have been selected from the ones allowed by the Specifications. If required by the Specifications, submit design calculations for review. Obtain the services of qualified personnel to perform this design and detailing. The Contractor's design and detailing does not relieve the Contractor from complying with the Contract Documents.

1.11 A. Provide submittals for O&M Manuals, Instructions, Parts list, etc

PART 2 - PRODUCTS

2.1 DESIGN BASE MANUFACTURERS

A. The Contract Documents are based on the requirements and layout of the equipment of the Design Base Manufacturers. Design coordination of equipment with the building and with other trades has been made for these specific models and manufacturers of equipment. Products of the other listed manufacturers which are of comparable performance and quality to the Design Base Manufacturers may be submitted for review and approval in accordance with contract documents.

B. Prepare new layouts for all non-base manufacturer equipment if proposed and adjust and coordinate these layouts with equipment dimensions or service requirements which may be different from those of the Design Base Manufacturer. Verify that this equipment will fit and function in the indicated application. Submit these layouts as part of the shop drawing review. Any changes to design for not using Design Base Manufacturer is the responsibility of the contractor that includes any structural changes due to weight and dimensions, the contractor shall verify all dimensions, clearances, structural integrity for proper operations and maintenance by using qualified people and submit for approval. Approval by engineer does not relieve the contractor for its responsibility for change and completion of work in operational conditions.

C. Whenever the Contractor furnishes equipment or material other than the Design Base Manufacturer specified the Contractor is responsible for the cost and coordination of all modifications required not only to his work, but also for the modifications to the work of all other trades affected. Where changes to other trades work are required, this Contractor must include the additional cost of all such work in his bid.

HVAC Systems Balancing 23 05 93 -6 such as asbestos in the form of pipe insulation or plaster. In the event materials are encountered during the work which may present a health hazard to workers, occupants, or the public stop work immediately and bring to the attention of Contacting Officer. Refer to specification section 028220.

3.5 CUTTING AND PATCHING

A. Unless otherwise required in General or Special Conditions, the Contractor shall perform all cutting and patching required for his own work. Work must be accomplished in a neat and workmanlike manner, acceptable to the contracting officer.

B. If necessary to cut into work of other Trades, it shall be done by other Trades at this

Contractor's expense. Patching shall be similarly executed.

C. Cutting of structural support beams, joists, plates, or other structural members is strictly prohibited without the specific written consent of the Contracting Officer. Use rotary drill where cutting holes 'through concrete, brick, plaster, or tile is necessary, obtain approval of the contracting officer before proceeding with work.

D. All cutting, and patching shall be done promptly and all repairs shall be made as necessary to leave the entire work in good condition, including all cutting, fitting, drilling of masonry, concrete, metal, wood, plaster, and other materials as specified or required for proper assembly, fabrication, installation, and completion of all work of the Contract.

E. Patching shall match adjacent materials and shall be accomplished only by tradesmen skilled in the respective craft required. Materials and equipment used in the patching work shall comply with requirements of those Sections of the Specifications relating to material to be used in new construction.

3.6 PAINTING AND RELATED WORK

A. Painting and repairs in patched area, required by Sections of Division 23, is the responsibility of the respective Division 23 Contractor. It shall be done by a qualified tradesman skilled in the craft and shall meet the requirements of Division 9. Each Contractor is responsible for repainting of finished areas disturbed by his own cutting and patching. Finishes/Painting shall match surrounding area.

B. Factory finished equipment which has rusted or has been damaged shall be cleaned, spot primed with zinc chromate, and finished to the original quality and color by the Contractor.

C. Support steel shall be cleaned, rust removed, primed, and painted.

D. All plywood mounting boards shall be primed and finished in accordance with Division 9.

3.7 CLEANING

A. Upon completion of work, all material and equipment furnished in this Contract shall be thoroughly cleaned of dirt, grease, rust, and oil. Prepare for finish painting, where painting is specified.

HVAC Systems Balancing 23 05 93 -8

c. Valve tags and charts.

d. Receipt for keys.

e. Warranties.

f. All required test reports as specified in other Sections.

g. Any mandated spares required by equipment manufacturers, one clean set of filters for each equipment where filters need replacement after replacing construction time filters.

2. Plumbing Contractor:

a. Certificate of Plumbing Inspection.

b. Certificate of Sterilization.

3. HVAC Contractor:

a. Certificate of inspection, Testing and Balancing.

b. Air and water balance reports.

c. Contractor's certificate of operation of fire and smoke dampers.

B. In addition to the written submittals, the following material must also be submitted prior to Substantial Completion:

1. Loose or spare parts as specified in other Sections.

2. Spare parts as specified in this Section.

C. Refer to Division I for additional requirements.

4.2 SPARE PARTS

A. Furnish one complete set of the following spare parts:

1. Glass for each water gauge.

2. One set of all filters. (Does not include filters used during construction and later replaced for testing and balancing.)

3. Special keys, wrenches, and similar required or special tools.

4.3 OPERATING TEST

A. At completion, the Contractor shall operate the systems for a period of at least five days, not necessarily consecutive, to demonstrate fulfillment of the requirements of the Contract. During this time, adjust equipment so that it will perform as the manufacturer intended, and so that systems will function as designed. Complete balancing before operating test is started.

B. Each system shall be operated in every mode of operation and the position of valves, dampers, and other devices shall be checked for proper closure and switching.

4.4 PERSONNEL INSTRUCTION / TRAINING

A. After all system operational tests have been completed, schedule an Instruction period with the Contracting Officer. Instruct the Contracting Officer’s-designated personnel in the operation and maintenance of all systems and equipment. Use project specific manuals (catalogs will not be acceptable, unless make model and specific equipment information is highlighted and all non-project related information is crossed out) to familiarize the Contracting Officer with equipment and procedures. Allow time as necessary for this instruction. Schedule time for minimum of two training sessions for Controls and all major equipment convenient for the Contracting Officer and the Architect and Engineer. These training sessions should be recorded and given to the

HVAC Systems Balancing 23 05 93 -10

SECTION 23 05 53 - EQUIPMENT, PIPING AND DUCTWORK IDENTIFICATION

PART 1 – GENERAL

1.1 RELATED SECTIONS:

Refer to other sections of Division 23 for items to be identified according to this section.

Refer to Division 26 for electrical identification.

1.2 SCOPE OF SECTION:

This section contains the requirements relating to the materials and methods used to identify items described in Division 23.

1.3 GENERAL:

The record drawings shall include mechanical identification on all serviceable components of piping and duct work systems and shall reference applicable valve tag charts and/or riser diagrams. Consult with CONTRACTING OFFICER for numbering.

1.4 CODES AND STANDARDS:

Comply with ANSI A13.1 for lettering size, length of color field, colors, and viewing angles of identification devices.

PART 2 - PRODUCTS

2.1 PAINTED IDENTIFICATION MATERIALS:

A. After piping has been finish painted, the installer of the piping shall identify the type of service lines with applied color bands and stenciled letters and indicate direction of flow with stenciled arrows. Color bands shall be 1 inch wide, finished in gloss enamel; lettering and arrows shall be same color as the bands.

Indicators shall be applied at connections to pumps, chillers and other equipment; at entrances to spaces; adjacent to valves; near access doors to pipe spaces and at 30-foot maximum intervals on long pipe runs. Letters be positioned to be easily read from a normal standing position.

B. STENCILS:

Standard fiberboard stencils, prepared for required applications with letter sizes generally complying with recommendations of ANSI A13.1 for piping and similar applications but not less than 1-1/4" high letters for ductwork and not less than 3/4" high letters for access door signs and similar operational instructions.

C. STENCIL PAINT:

Standard exterior type stenciling enamel; black, except as otherwise indicated;

either brushing grade or pressurized spray-can form and grade.

2.2 VALVE TAGS:

HVAC Systems Balancing 23 05 93 -12

A. COORDINATION:

Coordinate new labeling with existing labeling through Project Manager.

Where identification is to be applied to surfaces that require insulation, painting or other covering or finish, including valve tags in finished mechanical spaces, identification shall be installed after completion of covering and painting.

Identification is to be installed prior to installation of acoustical ceilings and similar removable concealment.

B. DUCTWORK IDENTIFICATION:

1. General: Provide for identification of air supply, return, exhaust, intake, and relief ductwork with stenciled signs and arrows, showing ductwork service and direction of flow, in black and white.

2. Locations: Ductwork shall be identified every 20’ in spaces with removable ceilings and at each access door in spaces with hard ceilings. Exposed ductwork shall be identified every 20’ in mechanical rooms. As described above, ductwork shall be labeled on both sides of floor and wall penetrations.

3. Access Doors: Provide engraved plastic-laminate signs on each access door in ductwork and housings, indicating purpose of access (to what equipment) and other maintenance and operating instructions, and appropriate and procedural information.

C. PIPING SYSTEM IDENTIFICATION:

1. General: Provide for pipe markers as follows:

Wrap around plastic identification with application system as indicated under Part 2 – Products in this Section. Include arrows to show normal direction of flow. For hot non-insulated pipes, install a segment of pipe insulation with appropriate piping identification.

2. Locate identification as follows wherever piping is exposed to view in occupied spaces, machine rooms, accessible maintenance spaces and exterior non- concealed locations.

a. Near each valve and control device.

b. Near each branch, excluding short take-offs for fixtures and terminal units; mark each pipe at branch, where there could be question of flow pattern.

c. At locations where pipes pass through walls, floors, ceilings, or enter non-accessible enclosures.

d. At access doors, manholes and similar access points which permit view of concealed piping.

e. At major equipment items and other points of origination and termination.

f. Spaced intermediately at maximum spacing of 50' along each piping run, except reduce spacing to 25' in congested areas of piping and equipment.

g. On piping above removable acoustical ceilings, except omit intermediately spaced markers.

h. Identify non potable piping and outlets.

3. Use the following band colors and letter

HVAC Systems Balancing 23 05 93 -14

SECTION 23 05 93 - HVAC SYSTEMS BALANCING

PART 1 - GENERAL

1.1 REFERENCE

A. Applicable provisions of the Drawings and General Conditions, Supplementary General Conditions and General Requirements in Division 23 govern work under this section.

1.2 REFERENCE STANDARDS

A. ASHRAE-Standard 111--1988 Practices for Measurement, Testing, Adjusting, and Balancing of Building Heating, Ventilation, Air Conditioning, and Refrigeration Systems.

B. ASHRAE —2006 HVAC Applications Handbook: Chapter 34--Testing, Adjusting and Balancing.

C. AABC--National Standards for Total System Balance.

D. NEBB--Procedural Standards for Testing, Balancing and Adjusting of Environmental

Systems.

E. SMACNA--HVAC Systems--Testing, Adjusting and Balancing.

F. Sheet Metal Industry--Testing, Adjusting, Balancing Bureau (TABB) Certified Technician

Standards, Procedures and Specifications.

1.3 QUALITY ASSURANCE

A. Balancing of the Heating and Air Conditioning Systems: Contractor shall be either

1. Registered in Ohio, a current member of NEBB, AABC with 5 years experience and certified in the disciplines specific to the project applications and needs, or

2. A registered professional Associate licensed in Ohio that specializes in the adjusting and balancing of systems specified with a minimum of 10 years documented experience.

3. TABIC Certified Contractor

B. Testing, adjusting, and balancing shall be performed under direct field supervision of a Certified

NEBB Supervisor, a Certified AABC Supervisor, Mechanical Associate, or TABIC Certified Contractor.

C. Work shall be performed only by a Contractor which employs Certified testing and balancing Technicians. If Contractor can not meet this criterion, then the following information shall be provided for each technician before contract is awarded.

1. Identify each Technician by name.

2. The Technicians shall have successfully completed testing, adjusting, and balancing classes and shall present for review their certification of training.

3. The Technicians’ previous work experiences shall not be less than five years.

4. Technicians’ references (including contact names and phone numbers) from all jobs during the past 12 months shall be presented.

D. No Technician substitutions will be made without prior approval from the CONTRA struments shall be in first class state of repair and have been calibrated within a period of six months prior to starting the job.

HVAC Systems Balancing 23 05 93 -16 determined whether the system or systems will be balanced for full cooling, full heating, or modulated as applicable to both design and weather conditions. The company selected to perform balance is required to submit to the Associate a summary of proposed methods of test procedure for each system.

E. Contact the Control Contractor for assistance in operation and adjustment of controls during testing, adjusting and balancing procedures. Include in report any deficiencies found in the temperature control system as they relate to testing and balancing.

1.6 SUBMITTALS

A. Prior to the commencement of work, submit for review a list of equipment, procedures, and data collection forms to be used in balancing the systems.

B. Submit reports of pre-construction plan check and periodic mechanical construction review, 12 weeks prior to commence of work.

C. Upon completion of work, submit testing, adjusting and balancing reports bearing the seal and signature of the Certified Test and Balance Supervisor/Technician. The reports are: certified proof that the systems have been tested, adjusted and balanced in accordance with the referenced standards; are an accurate representation of how the systems have been installed and are operating; and, are an accurate record of all final quantities measured to establish normal operating values of the systems.

D. Submit one copy of the preliminary air and water balance report. Test modes shall be identified in the balance reports. Three copies of the final balance reports indicating specified and actual tested conditions, including verification of equipment performance, as well as explanation for variation from specified conditions shall be submitted to the CONTRACTING OFFICER Architect. See facility Services-4.4.Submission:

E. Report Format and Contents

1. Format: Bind report forms in three-ring binders or portfolio binders. Label edge and binder front cover with label identifying project name, project number and descriptive title of contents. Divide the contents of the report into the below listed divisions, separated by divider tabs:

a) General Information (title page and instrument list)

b) Summary

c) Air Systems

d) Special Systems

2. Title Page:

a) Company name

b) Company address

c) Company telephone number

d) Name, signature, and registration number of each technician

e) Project name

f) Project location

g) Associate Project Associate

h) Project Contractor

i) Project altitude

j) Date of report

k) Balancing methodology (Ratio or Herman Method)

3. Instrument List:

a) Instrument

HVAC Systems Balancing 23 05 93 -18

B. All instruments used for measurements shall be accurate and calibrated. Calibration and maintenance of all instruments to be in accordance with the requirements of Reference Standards.

C. Provide all necessary tools, scaffolding and ladders and other necessary instruments.

PART 3 - EXECUTION

3.1 DAILY REPORTS

A. Submit to CONTRACTING OFFICER Representative daily work activity reports for each day on which testing and balancing work is performed. Reports shall include description of day's activities and description of any system deficiencies.

3.2 PRELIMINARY PROCEDURES

A. Before commencing work, verify that systems are complete and operable. Ensure the following:

1. Equipment is operable and in a safe and normal condition.

2. Temperature control systems are installed complete and operable.

3. Proper thermal overload protection is in place for electrical equipment.

4. Final filters are clean and in place. If required, install temporary media in addition to final filters.

5. Duct systems are clean of debris.

6. Correct fan rotation.

7. Volume (balancing and terminal units) dampers are in place and open.

8. Fire dampers are in place and open.

9. Coil fins have been cleaned and combed.

10. Access doors are closed and duct end caps are in place.

11. Air outlets are installed and connected.

12. Duct system leakage has been minimized.

13. Proper strainer baskets are clean and in place.

14. Operating voltage on fan and pump motors do not exceed motor’s nameplate maximum voltage rating.

B. Report to Associate any defects or deficiencies noted during performance of services.

C. Promptly report abnormal conditions in mechanical systems or conditions, which prevent system balance.

D. Beginning of work means acceptance of existing conditions.

3.3 PERFORMING TESTING, ADJUSTING AND BALANCING ON AIR SYSTEMS.

A. Perform testing, adjusting and balancing procedures on each system identified in drawing, in accordance with the detailed procedures outlined in the referenced standards except as may be modified below.

B. Unless specifically instructed in writing, all work in this specification section is to be performed during the normal workday.

C. In areas containing ceilings, remove ceiling tile to accomplish balancing work. Replace tile when work is complete and provide new tile for any tile that was damaged by this procedure. If the ceiling construction is such that access panels are required for the work of this section and the panels have not been provided, inform the CONTRACTING OFFICER representative.

HVAC Systems Balancing 23 05 93 -20

O. Adjust register, grille and diffuser vanes and accessories to achieve proper air distribution patterns (check with Associate for optimal configuration), uniform space temperatures, areas free from objectionable noise and drafts that are within the capabilities of the installed system.

P. Final air system measurements to be within the following range (unless directed otherwise by

Associate) of the specified CFM:

Fans -5% to +10% of design value Supply grilles, registers, diffusers -10% to +10% of design value Return/exhaust grilles, registers -10% to +10% of design value

Q. Permanently mark equipment settings including damper positions, valve positions, and control settings. Set and lock memory stops.

R. Leave systems in proper working order by replacing belt guards, closing access doors and electrical boxes, and restoring temperature controls to normal operating settings.

S. Testing and adjusting of variable air volume systems and the tracking of supply air fans with return air fans at the following normal extremes of system operation:

1). Maximum volumes, i.e. maximum summertime cooling design volumes, with constant volume toilet exhaust in operation.

2). Minimum volumes required: Minimum wintertime heating design volumes, with constant volume toilet exhaust in operation.

T. Coordinate the work with equipment manufacturers by obtaining authorization in writing to adjust specific equipment as it involves both air and water balance or to arrange for personnel of equipment suppliers to be available for the necessary adjustment at the time of balance.

Copies of all requests and acknowledgements should be directed to the Associate and the CONTRACTING OFFICER Architect.

3.4 PERFORMING TESTING, ADJUSTING AND BALANCING ON WATER SYSTEMS.

A. Perform testing, adjusting and balancing procedures on each system identified in drawing, in accordance with the detailed procedures outlined in the referenced standards except as may be modified below.

B. Unless specifically instructed in writing, all work in this specification section is to be performed during the normal workday.

C. Document valve type and its ability to fully regulate flow during various conditions (different flow, temperature, and control conditions).

D. Provide motor and impeller adjustments necessary to obtain design performance. Include in scope of services changes specifically noted on drawings, if any. If work indicates that any impeller or motor is inadequate for the application, advise the CONTRACTING OFFICER representative by giving the representative properly sized motor/impeller information (in accordance with manufacturers original service factor and installed motor horsepower/impeller requirements). Any changes shall keep the piping system within its design limitations with respect to the speed of the device and pressure classification of the distribution system.

Material costs for impeller changes as well as time and material for motor changes will be considered a reimbursable expense and will require an itemized cost breakdown of all time and motor/impeller changes submitted to CONTRACTING OFFICER representative; prior authorization is needed before this work is started.

HVAC Systems Balancing 23 05 93 -22 will be selected by the CONTRACTING OFFICER, CONTRACTING OFFICER Representative or Associate.

3) If any of the points in the second sample fails, then the CONTRACTING OFFICER may direct the Test and Balance Contractor to repeat their testing and balancing services in their entirety at no additional cost to the CONTRACTING OFFICER. Then, the CONTRACTING OFFICER Representative or Associate shall repeat the spot check procedure.

C. If the Test and Balance Contractor fails to demonstrate proper compliance with this specification, the Associate’s or CONTRACTING OFFICER Representative’s costs for witnessing and reviewing three or more spot checks will be assigned to the Test and Balance Contractor by the CONTRACTING OFFICER as a deduct to their contracted price.

Note: The Test and Balance Contractor will not be responsible for costs related to poor design or to other factors beyond their control, though it is expected to call any design concerns and other factors beyond their control that might cause system failure to the attention of the Associate and the CONTRACTING OFFICER.

APPENDIX TAB1

A. These data collection points are for various HVAC systems and units. Some systems may not apply to this project.

B. Data shall include, at a minimum, the following points for each HVAC system/unit.

C. Air Moving Equipment:

1) Designation

2) Location

3) Manufacturer

4) Model

5) Airflow, specified and actual

6) Return airflow, specified and actual

7) Outside airflow, specified and actual

8) Total static pressure (total external), specified and actual

9) Inlet pressure

10) Discharge pressure

11) Fan RPM

D. Electric Motor:

1) Manufacturer

2) HP

3) Frame

4) Phase, voltage, amperage; nameplate and actual

5) RPM

6) Service factor

7) Starter size, rating, heater elements

E. V-Belt Drive:

1) Identification

2) Driven sheave, diameter

3) Belt, size and quantity

4) Motor sheave, diameter

5) Center to center distance, maximum, minimum, and actual

6) Final components

F. Duct Traverse:

1) System zone/branch

2) Duct size

3) Area

4) Design velocity

5) Design airflow

HVAC Systems Balancing 23 05 93 -24

k. Fan RPM

J. Report is to include a listing of any abnormal or notable conditions not contained in the above.

K. Testing ceiling plenum systems for leakage

END OF SECTION

Construct Handicap Ramps/Steps/Sidewalks

Insulation 23 07 13 -2

A. Pre-molded PVC covers over molded insulation. Insulation same thickness as on adjoining pipe. Insulation shall be beveled down to unions with all exposed end sealed with CP.10 or equivalent. Insulation covers shall be either prefabricated or fabricated of pipe insulation. Insulation vapor barrier shall be installed continuous and unbroken.

B. Hangers, supports, anchors, secured directly to cold surfaces, must be adequately insulated and vapor sealed to prevent condensation.

C. Rigid insulation inserts of proper length shall be installed between pipe and insulation protection shield to prevent sagging of pipe covering at hanger points.

Compressive strength of insulation inserts shall be not less than 350 psf at 10% deformation.

Inserts shall be installed as pipe is erected.

D. Piping with calcium silicate insulation and aluminum jacket shall have fiberglass covering between the calcium silicate and the aluminum jacket.

2.4 INDOOR ROUND AND RECTANGULAR DUCTWORK CONCEALED

A. Flexible fiberglass duct wrap laminated to foil reinforced Kraft vapor barrier facing with 2” stapling flange, 1.0 PCF density, K-0.23.

B. 1” thick fiberglass duct liner, only with Engineer’s prior written approval, for low or medium pressure rectangular ductwork.

2.5 OUTDOOR DUCTWORK-RECTANGULAR

A. 2” thick flexible elastomeric (max.) 200 deg. F) with aluminum jacket.

B. 3” thick (max. 250 F) mineral fiberboard with aluminum jacket.

2.6 Acoustic lining: Installation of Interior duct insulation is prohibited on single wall ductwork.

2.7 INDOOR RECTANGULAR, LOW or MEDIUM PRESSURE DUCTWORK, EXPOSED

A. 1” thick fiberglass duct liner

3.1 PIPING INSULATION REQUIREMENTS

A. Insulate the following piping:

1. Domestic Cold Water Piping

B. Insulate as follows ;

Pipe Type Pipe Size Insulation Thickness

Domestic Cold Water 2 inch and smaller ½ inch

Construct Handicap Ramps/Steps/Sidewalks

Air Outlets and Inlets 23 36 13 -2

SECTION 23 36 13 - GRILLES, REGISTERS AND DIFFUSERS

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes diffusers and registers/grilles.

B. Related Sections:

1. Section 09900 - Paints and Coatings: Execution and product requirements for Painting of ductwork visible behind outlets and inlets specified by this section.

1.2 REFERENCES

A. ADC 1062 Air Diffusion Council - Certification, Rating and Test Manual.

B. AMCA 500 Air Movement and Control Association - Test Method for Louvers, Dampers and Shutters.

C. ASHRAE 70 American Society of Heating, Refrigerating and Air Conditioning Engineers - Method of Testing for Rating the Airflow Performance of Outlets and Inlets.

D. SMACNA Sheet Metal and Air Conditioning Contractors’ National Association -

HVAC Duct Construction Standard - Metal and Flexible.

1.3 SUBMITTALS

A. Section 01330 - Submittal Procedures: Submittal procedures.

B. Product Data: Submit data outlets and inlets sizes, finish, and type of mounting prior to submission. Submit schedule of outlets and inlets showing type, size, location, application, and noise level.

C. Samples: Submit two of each required air outlet and inlet type.

D. Test Reports: Rating of air outlet and inlet performance.

E. Manufacturer's Certificate: Certify products meet or exceed specified requirements.

1.4 CLOSEOUT SUBMITTALS

A. Section 01700 - Execution Requirements: Closeout procedures.

B. Project Record Documents: Record actual locations of air outlets and inlets.

Construct Handicap Ramps/Steps/Sidewalks

Air Handling Units 23 73 13 -1

3.1 EXAMINATION

A. Section 013300 – Submittal Procedures: Coordination and project conditions.

B. Verify inlet/outlet locations in the field prior to ordering.

C. Verify ceiling and wall systems are ready for installation.

3.2 INSTALLATION

A. Install diffusers to ductwork with airtight connection.

B. Install balancing dampers on duct take-off to diffusers, grilles, and registers, whether or not dampers are furnished as part of diffuser, grille, and register assembly.

C. Paint visible portion of ductwork behind air outlets and inlets matte black.

Refer to Section 099000.

3.3 INTERFACE WITH OTHER PRODUCTS

A. Check location of outlets and inlets and make necessary adjustments in position to conform to architectural features, symmetry, and lighting arrangement.

END OF SECTION

Construct Handicap Ramps/Steps/Sidewalks

Air Handling Units 23 73 13 -1

B. Heating coils are three- or six-row, heating water. All water coils are 12 fins per inch. All water coils use highly efficient aluminum fins, mechanically bonded to seamless copper tubes. All coils are specifically designed and circuited for water use. All coils are factory tested with 450 psi air under water. Maximum standard operating conditions are: 300 psig, 200°F. Sweat type connections are standard.

C. Fans are forward curved, centrifugal blower type equipped with heavy-duty adjustable speed V-belt drive. The fan shaft is supported by heavy-duty, permanently sealed ball bearings. All fans are dynamically balanced. All air handlers have a single fan.

D. The drain pan is noncorrosive and double-sloped to allow condensate drainage.

The drain pan construction is stainless steel. Coils mount above the drain pan—not in the drain pan—thus allowing the drain pan to be fully inspected and cleaned. The drain pan can also be removed for cleaning. The stainless steel drain pan connection is 3/4” NPT schedule 40 stainless steel pipe. The main drain connection is at the lowest point of the drain pan. An auxiliary drain connection is provided on the same side as the main connection.

E. One-inch standard efficiency throwaway and two-inch pleated standard efficiency (30%) are available on all blower coil units. Units have a standard flat filter rack that is sized for less that 500 feet per minute at nominal airflow. An optional angle filter rack is available; this is sized for less than 300 feet per minute at nominal airflow. All units and filter racks use standard filter sizes.

F. Single-phase motors are available in 60 Hz for 115, 208–230, 277, or 220–240 voltage operation. Three-phase motors are available for 208–230, 460, 575, or 190/380–415 voltage operation. All motors have a plus or minus 10% voltage utilization range. All standard motors are open drip-proof with permanently sealed ball bearings, internal current and thermal overload protection, a minimum 1.15 service factor and 56 frame resilient bases. Motors are factory-installed and wired to the air handler junction box.

G. Piping Packages: The maximum entering fluid temperature to the water valves is 200°F. Insulation on the piping package is by others. The stop valves are ball type.

H. The control interface is intended to be used with a field-supplied, low-voltage thermostat or controller. The control box contains a line voltage to 24 volt transformer; a one, two, or three-pole contactor; and a disconnect switch. The wires from the fan contactor and the low voltage side of the transformer are pulled and terminated on the inside of the two-sided terminal strip. All customer connections other than power are on the outside of the two-sided terminal strips.

2.2 Units shall be manufactured by Trane, McQuay, Magic Aire, Enviro-Tec, Carrier or

York.

2.3 Components related to the air handling unit that are to be provided by the

Contractor, not the supplier, are:

A. Air filters and housings.

B. Locations for differential gauges are provided by temperature control contractor.