DRAWING INDEX

M001

SHEET NUMBER SHEET TITLE REVISION NUMBER

M100

GENERAL DRAWINGS

MECHANICAL DRAWINGS

COVER SHEET, MAP, & DRAWING INDEX

HVAC GENERAL NOTES, DETAILS, & LEGEND

G-000

M101

M102

M200

M201

M202

M500

HVAC GROUND FLOOR PLAN - DEMOLITION

HVAC FIRST FLOOR PLAN - DEMOLITION

HVAC SECOND FLOOR PLAN - DEMOLITION

HVAC GROUND FLOOR PLAN - NEW WORK

HVAC FIRST FLOOR PLAN - NEW WORK

HVAC SECOND FLOOR PLAN - NEW WORK

HVAC SCHEDULES & CONTROLS

M002 HVAC SPECIFICATIONS

M003 HVAC SPECIFICATIONS

BLDG 600

BLDG 100

BLDG 500

BLDG 650

BLDG 800

BLDG 700

CLEVELAND L. DENNARD CONFERENCE CENTER

PROJECT SITE

CENTRAL PLANT

INTERSTATE

StCASPLAN

S t

C A

S P

LA

N

DATE

DRAWN BY

CHECKED BY

PROJECT NUMBER

G-000

COVER / INDEX

A T

L A

N T

A M

E T

R O

P O

L

IT

A N

S T

A T

E C

O L

L E

G E

THW

AMN

03/23/2026

25js87

B U

IL

D

IN

G

H V

A C

R E

N O

V A

T

IO

N

ATLANTA METROPOLITAN STATE COLLEGE

BUILDING 500

HVAC REPLACEMENT

1630 Metropolitan Pkwy SW, Atlanta, GA 30310

PROJECT TEAM

PRIME CONSULTANT / MECHANICAL ENGINEER

JOHNSON SPELLMAN & ASSOCIATES

Contact: Thom Wille, PE Address: 350 Research Ct, Suite 130

Peachtree Corners, GA 30092 Phone: 678.336.5417 Email: twille@jsace.com

OWNER

ATLANTA METROPOLITAN STATE COLLEGE

Contact: Darren Thomas Address: 1630 Metropolitan Pkwy SW

Atlanta, GA 30310 Phone: 678.466.4249 Email: DarrenThomas@clayton.edu

A. APPLICABLE CODES AND STANDARDS:

CURRENT APPLICABLE CODES

PROJECT DESCRIPTION

A. The intent of the project is to provide replacement Parallel Powered Induction Terminal Units (PIU) serving all levels of the 3-story Building 500. All hot water heating piping from the mechanical room risers to the new units will be replaced. All replacement PIU terminal units will include hot water reheat coils. Replacement PIU terminal units will include electronic type BAS controls by ALC. The BAS vendor shall be responsible for providing 24V control power and any needed transformers from available 120V or 208V power circuits to all replacement PIU terminal units. All affected pneumatic controls shall be removed and capped.

1. International Building Code, 2024 Edition, with Georgia Amendments (2026)

2. International Existing Building Code, 2018 Edition, with Georgia Amendments (2021)

3. International Mechanical Code, 2024 Edition, with Georgia Amendments (2026)

4. NFPA 90A, 2024 Edition, Standard for the Installation of Air-Conditioning and Ventilating Systems

5. NFPA 101, 2024 Edition, Life Safety Code

6. ASHRAE 62.1-2016 Ventilation for Acceptable Indoor Air Quality

7. National Electric Code, 2023 Edition with Georgia Amendments

8. All City, County, State, Regional and other ordinanaces applicable to the work.

SITE MAPN

SCALE: NONE

N O

D

E S

C R

IP

T

IO

N

D A

T E

F

IN

A L O

W N

E R

R E

V

IE

W

/2

/2

H

C

T

HVAC LEGEND & ABBREVIATIONS HVAC LEGEND & ABBREVIATIONS

SYMBOL DESCRIPTION

RECTANGULAR AIR DUCT - FIRST DIMENSION IS SIDE SHOWN00x00

DUCT TRANSITION, RECTANGULAR TO ROUND OR OVAL

ROUND DUCT (A"∅) OR FLAT OVAL (AxB∅)

FIRE DAMPER (FD)

AIR DUCT FLEXIBLE CONNECTOR

DUCTWORK TO BE REMOVED

SUPPLY OR OUTSIDE AIR RECTANGULAR DUCT RISE OR DROP

RETURN AIR RECTANGULAR DUCT RISE OR DROPOR

OR

SMOKE DAMPER (SD)

COMBINATION FIRE/SMOKE DAMPER (FSD)

SQUARE ELBOW WITH TURNING VANES

DUCT TRANSITION, RECTANGULAR TO RECTANGULAR

FLEX DUCT AT DIFFUSER

DUCT-MOUNTED STATIC PRESSURE SENSOR (DM-SPS)

MANUAL VOLUME DAMPER (MD)

OR

CONCENTRIC REDUCER

PIPE UNION

PIPE RISE [DOUBLE LINE/SINGLE LINE]

PIPE DROP [DOUBLE LINE/SINGLE LINE]

CAP ON END OF LINE

GATE VALVE

BUTTERFLY VALVE

BALANCING VALVE

CHECK VALVE

SOLENOID VALVE

GLOBE VALVE

THREE WAY MODULATING MOTORIZED CONTROL VALVE

TWO WAY MODULATING MOTORIZED CONTROL VALVE

BALL VALVE

PRESSURE REDUCING VALVE

RELIEF VALVE

AUTOMATIC AIR VENT

MANUAL AIR VENT

LINED DUCTWORK, DIMENSIONS ARE OUTER METAL TO OUTER METAL

SMOKE DETECTOR (SDT)

THERMOMETER

PRESSURE GAUGE

DRIP LEG

TEST PLUG

THERMOMETER WELL

GAUGE COCK

STRAINER

SIGHT GLASS

SYMBOL DESCRIPTION

PIPING OR EQUIPMENT TO BE REMOVED

PIPE FLOW ARROW

GRADE ARROW-INDICATES RISE OR DROP IN DUCT OR PIPE

UP DN

OR

HOT WATER RETURNHWR

HOT WATER SUPPLYHWS

CONDENSATE DRAINC

VENTV

HUMIDITY SENSOR

TEMPERATURE SENSOR (USER ADJUSTABLE)

BACKDRAFT DAMPER (BDD)

OR EXHAUST AIR RECTANGULAR DUCT RISE OR DROP

CARBON DIOXIDE SENSOR

ECCENTRIC REDUCER FLAT SIDE ON BOTTOM OR FLAT SIDE ON TOP

MOTOR OPERATED DAMPER (SAME SIZE AS DUCT UNLESS OTHERWISE NOTED) (MOD)

THERMOSTAT

CONNECT TO EXISTING

EXTENT OF DEMO

AIR FLOW SENSOR (AFS)

T

S TEMPERATURE SENSOR (NON-ADJUSTABLE)

Z CEILING MOUNTED COMBINATION TEMPERATURE AND HUMIDITY SENSOR

IONIZATION FILTER (IF)

MECHANICAL - GENERAL NOTES

1. EXISTING EQUIPMENT, DUCTWORK AND PIPING TO REMAIN, UNLESS NOTED TO BE

REMOVED.

2. VERIFY LOCATIONS OF EXISTING PIPING, DUCTWORK AND EQUIPMENT PRIOR TO

BEGINNING WORK.

3. PROVIDE INSULATED FLEXIBLE DUCT TO DIFFUSER SAME SIZE AS DIFFUSER NECK

SIZE WITH SPIN-IN AND SINGLE BLADE DAMPER AT DIFFUSER TAKE-OFF.

4. ALL EXISTING EQUIPMENT, DUCTWORK AND PIPING IS SHOWN LIGHT SOLID, DEMO

WORK IS BOLD DOTTED, AND NEW WORK IS BOLD SOLID.

5. ROUTE DUCTWORK AS TIGHT TO STRUCTURE AS POSSIBLE, UNLESS OTHERWISE

NOTED.

6. MAXIMUM FLEXIBLE DUCT RUNOUT TO BE FIVE FEET. USE GALVANIZED STEEL

DUCT FOR INDIVIDUAL RUNOUTS OVER FIVE FEET.

7. BALANCE AIR DISTRIBUTION SYSTEMS AS NOTED.

8. UNLESS OTHERWISE NOTED, WALL MOUNTED THERMOSTATS AND SENSORS

SHALL BE MOUNTED AT 4'-0" AFF. COORDINATE FINAL DEVICE LOCATIONS AND

HEIGHTS WITH ARCHITECT AND ARCHITECTURAL DRAWINGS PRIOR TO

INSTALLATION.

9. COORDINATE ALL LAY-IN CEILING DIFFUSERS WITH ARCHITECTURAL REFLECTED

CEILING PLAN.

10. PROTECT ALL MATERIALS AND EQUIPMENT FROM DAMAGE.

11. CONTRACTOR SHALL PAINT ALL DUCTWORK VISIBLE THROUGH SUPPLY AND

RETURN AIR OPENINGS AND GRILLES FLAT BLACK.

12. CONTRACTOR TO COORDINATE FIRE DAMPER HOURLY RATINGS WITH GENERAL

CONTRACTOR AND ARCHITECTURAL DRAWINGS.

13. COORDINATE ALL MANUAL VOLUME DAMPERS TO BE LOCATED IN AN ACCESSIBLE

LOCATION.

14. SEE SPECIFICATIONS REGARDING DUCTWORK CLEANLINESS AND DUCT

PROTECTION DURING CONSTRUCTION.

15. CONTRACTOR SHALL COORDINATE LOCATION AND QUANTITY OF ALL MANUAL

DAMPERS, MOTORIZED DAMPERS, FILTER RACKS, SMOKE DETECTORS, ETC WITH

CONTROL SCHEMATIC DRAWINGS.

16. FLEXIBLE DUCTWORK SHALL NOT BE INSTALLED ABOVE INACCESSIBLE CEILINGS.

17. FLEXIBLE DUCTWORK SHALL NOT BE INSTALLED IN RETURN OR EXHAUST AIR

SYSTEMS UNLESS OTHERWISE NOTED.

18. ALL HYDRONIC PIPING RUNOUTS TO EQUIPMENT SHALL BE 3/4" UNLESS

OTHERWISE NOTED.

19. EQUIPMENT ABOVE ACCESSIBLE CEILINGS SHALL BE LOCATED WITH BOTTOM OF

UNIT ACCESSIBLE FROM THE CEILING LEVEL, NOT TO EXCEED 24" ABOVE THE

CEILING.

20. ALL RETURN GRILLES SHALL BE TYPE R-1 UNLESS OTHERWISE NOTED.

21. ALL CONTROL WIRING AND RELATED CONDUIT FOR NEW TEMPERATURE

SENSORS SHALL BE CONCEALED IN THE WALL. NO EXPOSED CONDUIT OR WIRING

PERMITTED UNLESS APPROVED BY THE ARCHITECT.

A. APPLICABLE CODES AND STANDARDS

1. International Building Code, 2024 Edition, with Georgia Amendments (2026)

2. International Existing Building Code, 2018 Edition, with Georgia Amendments (2021)

3. International Mechanical Code, 2024 Edition, with Georgia Amendments (2026)

4. NFPA 90A, 2024 Edition, Standard for the Installation of Air-Conditioning and Ventilating Systems

5. NFPA 101, 2024 Edition, Life Safety Code

6. ASHRAE 62.1-2016 Ventilation for Acceptable Indoor Air Quality

7. National Electric Code, 2023 Edition with Georgia Amendments (2026)

8. All City, County, State, Regional and other ordinanaces applicable to the work.

9. Chapter 120-3-3: Georgia Rules and Regulations for the State Minimum Fire Safety Standards.

B. PROJECT DESIGN SCOPE

1. The intent of this design is to replace the existing HVAC terminal units in all levels of the existing 3-story classroom/office building.

2. The existing system uses Powered Mixing Boxes (PMB) throughout the building. Existing units serving interior zones are without reheat. Existing units serving perimeter and roof zones utilize duct-mounted hot water coils for reheat.

Medium pressure air is provided by existing air handling units (AHUs) on each level. Each level contains one AHU.

Hot water is supplied from the campus central plant and additional pressure is provided by the building's existing secondary hot water pump.

3. Demolish existing PMB terminal units and associated hot water reheat coils. New terminal units will connect to existing hot water piping and medium pressure supply air.

4. All zones will be conditioned by new Series Powered Induction Units (PIUs) that will operate at 30% minimum airflow. PIU fans will provide additional airflow to match existing unit airflows. Connect new PIU terminal units to existing ductwork.

5. Outdoor design conditions will be 95ºF dry bulb, 76ºF wet bulb in the summer and 10ºF dry bulb in the winter.

Equipment will have freeze protection designed to an outside temperature of 0ºF.

a. Indoor design conditions will be listed as below:

Area Design Conditions:

Winter Summer

ºF ºF %RH

A. Offices/Meeting Rooms 70 74 50 B. Classrooms 70 74 50 C. Storage 70 72 50 D. IT Room 70 72 50

Space temperatures will be maintained at ± 2ºF.

MECHANICAL - DESIGN INTENT

3-WAY CONTROL

VALVE

HWS

HWR

ISOLATION VALVE WITH

MEMORY STOP, TYP.

BALANCING VALVE

1/2" BALL VALVE DRAIN W/

THREADED OUTLET, CHAIN, &

CAP

TEST PLUG, TYP.

UNION, TYP.

MANUAL AIR VENT, TYP.

HOT WATER COIL

AIR

FLOW

2'-0"

MAX.

FLEX

HANG UNIT WITH RUBBER

IN SHEAR ISOLATORS AND

THREADED RODS

FLEX CONNECTOR

FLOW

AIR

PROVIDE MINIMUM

RECOMMENDED LENGTH

OF STRAIGHT DUCT PRIOR

TO CONNECTION WITH

THE UNIT AS DETERMINED

BY THE UNIT

MANUFACTURER.

NOTE(S):

1. FLEX DUCT SHALL NOT USED TO ALIGN MEDIUM PRESSURE DUCTWORK WITH TERMINAL UNIT.

RETURN

AIR

STRAINER WITH 1/2" BALL

VALVE DRAIN W/ THREADED

OUTLET, CHAIN & CAP

HWS

HWR

BALANCING VALVE

1/2" BALL VALVE DRAIN W/

THREADED OUTLET, CHAIN, &

CAP

UNION, TYP.

HOT WATER COIL

STRAINER WITH 1/2" BALL

VALVE DRAIN W/ THREADED

OUTLET, CHAIN & CAP

AIR

FLOW

2'-0"

MAX.

FLEX

HANG UNIT WITH RUBBER

IN SHEAR ISOLATORS AND

THREADED RODS

FLEX CONNECTOR

FLOW

AIR

PROVIDE MINIMUM

RECOMMENDED LENGTH

OF STRAIGHT DUCT PRIOR

TO CONNECTION WITH

THE UNIT AS DETERMINED

BY THE UNIT

MANUFACTURER.

NOTE(S):

1. FLEX DUCT SHALL NOT USED TO ALIGN MEDIUM PRESSURE DUCTWORK WITH TERMINAL UNIT.

TEST PLUG, TYP.

2-WAY CONTROL

VALVE

RETURN

AIR

ISOLATION VALVE WITH

MEMORY STOP, TYP.

MANUAL AIR VENT, TYP.

1/2" BALL VALVE

1/2"x4" NIPPLE

FULL PIPE SIZE

PIPE FULL SIZE FLOOR

DRAIN OR INDIRECT

CONNECTION. (STRAP TO

MAIN PIPE FOR SUPPORT)

FLOW

NOTE(S):

1. IF MAIN BRANCH IS COPPER, ALL SUBSEQUENT VENT PIPING

SHALL BE COPPER.

2. VENT ALL HIGH POINTS AS INDICATED ABOVE.

3. PROVIDE BALL VALVE IN ACCESSIBLE LOCATION WHERE

DISCHARGE FROM TUBING CAN BE OBSERVED.

UNION

NOTE 3

AIRFLOW

PIPING MAINS

CIRCUIT SETTER

CONTROL VALVE

TEST PLUG

UNIT HEATER

UNION (TYP.)

3/4" BALL VALVE

DRAIN WITH HOSE

END CONNECTION

BALL VALVE (TYP.)

DATE

DRAWN BY

CHECKED BY

PROJECT NUMBER

M001

HVAC GENERAL

NOTES, DETAILS,

& LEGEND

A T

L A

N T

A M

E T

R O

P O

L

IT

A N

S T

A T

E C

O L

L E

G E

THW

AMN

03/23/2026

25js87

B U

IL

D

IN

G

H V

A C

R E

N O

V A

T

IO

N

SCALE: NO SCALE1

POWERED INDUCTION UNIT TWO-WAY HOT WATER COIL

PIPING DIAGRAM

SCALE: NO SCALE2

POWERED INDUCTION UNIT DIAGRAM THREE-WAY HOT

WATER COIL

SCALE: NO SCALE3 MANUAL AIR VENT INSTALLATION

SCALE: NO SCALE4 HOT WATER COIL PIPING DETAIL

N O

D

E S

C R

IP

T

IO

N

D A

T E

F

IN

A L O

W N

E R

R E

V

IE

W

/2

/2

SECTION 230010: GENERAL PROVISIONS - HVAC

1.1 DESCRIPTION: These Mechanical General provisions specified herein apply to all Sections of Division 23.

1.2 WORK INCLUDED

A. Provide all materials, labor and services as specified in Division 23 and shown on the accompanying drawings.

1.3 RELATED SECTION

A. Section 23 0100 Operation and Maintenance of HVAC Systems

1.4 DEFINITIONS

A. Terms: The following definitions of terms supplement those of the General Conditions and are applicable to all Mechanical Sections.

1. Provide: Furnish, install, and connect completely.

2. Piping: Pipe installed with all required fittings, valves, and accessories, and forming a complete system.

3. Wiring: Wire or cable installed in raceway with all required boxes, fittings, connectors, and accessories completely installed.

4. Power Wiring: Wiring that supplies the electrical current that flows through a connected motor or heater.

5. Exposed: Revealed to view or subject to weather.

6. Control, interlock and starting circuit wiring: All wiring required by all Mechanical Sections that is not power wiring.

7. Fittings: All connecting pieces of a system.

B. Drawings: The Mechanical Drawings are diagrammatic except where otherwise specifically indicated. Refer to Architectural and Structural Drawings for building dimensions.

C. Materials: Refer to the General Conditions. All material shall be suitable for the service and operating conditions of this Specification.

1.5 ABBREVIATIONS

A. The following abbreviations are used in this Division of the Specifications:

AABC Associated Air Balance Council ABMA American Boiler Manufacturers Association AHRI Air-Conditioning, Heating, and Refrigeration Institute AMCA Air Movement Control Association ANSI American National Standards Institute ASHRAE American Society of Heating, Refrigerating and Air-Conditioning Engineers ASME American Society of Mechanical Engineers ASTM American Society for Testing and Materials AWWA American Water Works Association CTI Cooling Tower Institute IEEE Institute of Electrical and Electronics Engineers ISO International Organization for Standardization NEMA National Electrical Manufacturers Association SMACNA Sheet Metal and Air Conditioning Contractors National Association TEMA Tubular Exchanger Manufacturers Association UL Underwriters Laboratories

1.6 APPLICABLE CODES

A. The latest amended editions of the codes applicable to the work of the municipality having jurisdiction.

B. In the absence of any municipal adopted codes, the following shall apply:

1. International Building Code, 2024 Edition, with Georgia Amendments (2026).

2. International Fire Code, 2024 Edition, with Georgia Amendments (2026).

3. International Plumbing Code, 2024 Edition, with Georgia Amendments (2026).

4. International Mechanical Code, 2024 Edition, with Georgia Amendments (2026).

5. International Fuel Gas Code, 2024 Edition, with Georgia Amendments (2026).

6. National Electrical Code, 2023 Edition, with Georgia Amendments (2026).

7. International Energy Conservation Code, 2015 Edition, with Georgia Supplements and Amendments (2020), (2022), (2023).

8. All City, County, State, Regional, and other ordinances applicable to the work shall apply.

9. Chapter 120-3-3: Georgia Rules and Regulations for the State Minimum Fire Safety Standards.

1.7 RELATED WORK

A. The following work is generally specified in other Divisions of the Specifications, except as specifically otherwise stated in this Division.

1.8 SPACE CONDITIONS

A. All work shall fit the spaces available. Verify all dimensions of the work before commencing fabrication and/or installation.

B. Minor deviations from the drawings required to conform to space conditions and to provide the required operation, service, or maintenance accessibility shall be made at no additional cost, and subject to approval.

C. Piping, equipment, or ductwork shall not be installed in electrical equipment rooms. Outside of electrical equipment rooms, do not run piping or ductwork, or locate equipment, with respect to switchboards, panel boards, power panels, motor control centers, or dry-type transformers:

1. Within 42" in front (and rear if free standing) of equipment; or

2. Within 36" of sides of equipment

3. Clearances apply vertically from floor to ceiling structures.

1.9 RECORD DRAWINGS

A. Upon completion of the Project, the Contractor shall submit one set of contract prints with red marks indicating as-built conditions of all piping, ductwork, and equipment, and incorporating changes made during construction. A record of as-built conditions shall be kept throughout the project and shall be used in the preparation of the final record drawings.

B. The Contractor shall provide digital images (minimum resolution of 1152 x 864 pixels in JPEG standard image file format) delivered via email or USB thumb drive of any utilities/piping that are installed underground with a reference drawing indicating which direction each picture is taken. The reference drawing shall dimension the utility/piping from a prominent fixed object.

1.10 GUARANTEES

A. Furnish a written guarantee covering each category of work for a period of one year from date of legal acceptance for the project. Guarantee shall include prompt correction of all leaks.

B. Guarantee shall be furnished in exact conformity with the requirements of the General Conditions.

1.11 CONTINUITY OF SERVICE

A. All work shall be scheduled with that of other trades. The following conditions shall apply to all affected work.

1. Before disconnecting any existing systems for changes, the Contractor shall:

a. Have all needed materials stored at the job site.

b. Have assurance that all labor and skilled mechanics needed will be available at the proper time.

c. Estimate the time the system will be out of service and inform the Owner in writing.

d. Secure approval of the shutdown dates from the Owner in writing before disconnecting the system.

2. The existing cooling tower shall not be removed from operation.

3. Piping for the existing cooling tower to remain in use shall not be made unusable.

4. The operation of the cooling systems shall not be interrupted but one time and that period of shutdown shall be kept to a minimum.

5. All shutdown of air conditioning systems shall be made when the temperature is projected to be below 45°F.

6. No existing air conditioning system and/or equipment shall be shut down for more than fifteen minutes without the approval of the Owner.

7. Work shall be so conducted that the water and gas supply and drainage of existing services will not be interrupted when such services are required for normal usage of the occupied portions of the existing building.

8. Work shall be done at such time and in such manner as to cause minimum inconvenience to the Owner and as approved by him or his representative. No allowance will be made for lack of knowledge of existing conditions.

1.12 EXISTING CONDITIONS

A. Existing systems and equipment shall remain unchanged except where otherwise specified or shown on the drawings.

B. Where pipes, ducts, or controls that are to remain in service are disconnected for removal of equipment or because of building alterations, they shall be reconnected to match the existing installation.

C. The remodeling work to be done in the existing building shall be coordinated with work of other trades. New piping, ducts, or controls shall be run to point of connection to existing piping and tie-ins shall be made in such a manner as to afford minimum inconvenience to building occupants and operation.

D. All pipe, valves, fittings, etc. that are removed from the existing building shall become the property of the Contractor and shall be removed from the premises. Due allowances shall be made for this material in the bid.

E. All existing wall-mounted thermostats containing mercury bulbs, shown to be removed, shall be delivered to the nearest Thermostat Recycling (TRC) collection point. Collection points can be found at www.nema.org/trc. Obtain a receipt for the number of thermostats returned and include a copy in the warranty and guarantee portion of the project completion documentation.

F. Existing work shall be relocated as shown on the drawings.

G. Existing work shall be removed as shown on the drawings.

H. Work shall include the removal or extension of and connection to parts of the existing work, and all changes in the existing system to make it conform to changes in the building.

I. Piping rendered useless by the removal of walls, partitions, fixtures, etc., shall be removed and the outlets at the main plugged behind the finish surfaces.

1.13 OPERATING INSTRUCTIONS

A. Instructions: Instruct the Owner's representative in operation of the installed systems. The basis of these instructions shall be those written for inclusion in the maintenance and operating instruction data specified herein. Obtain certificates, signed by the Owner's representative, that these instructions have been received.

B. Notification: Notify the Owner at least five days before commencing operating period for refrigeration and heating equipment, as specified herein, in order that the Owner's representative may be present during that period.

1.14 DOCUMENTATION

A. Documents to be submitted prior to request for final inspection:

1. Maintenance Manuals per Section 23 0100 Operation and Maintenance of HVAC Systems.

2. Test and Balance Report.

3. Three copies of multi-year warranties bound in a brochure with index listing equipment.

B. Data to be Delivered at Final Inspection:

1. Record Drawings.

2. Certificate by Owner's representative confirming that operating instructions have been received.

1.15 SUBMITTALS

A. Procedure: Refer to the GENERAL CONDITIONS and SUPPLEMENTS thereto for submittal procedure of items called for in the Contract Documents.

B. Submittal data covering the work of this Division will be reviewed only after such items have been reviewed in detail and approved by the Contractor, such approval being indicated by suitable notations or stamp on the data.

C. Each submittal shall be clearly marked indicating Specification Section and paragraph for which it is intended. Any deviations, exclusions or substitutions from specified material requirements shall be specifically identified in a summary sheet at the front of the submittal.

D. Where submittal sheets contain multiple products or selections, the specific item being submitted for review shall be clearly indicated with a red arrow (stamped or hand written). “Catalog” submittals (multiple items contained in the submittal, specific items not identified) will be rejected and not reviewed.

E. Submit the requested submittals in sufficient quantity to provide two copies in addition to those required by Contractor.

F. All fan and pump submittals shall include performance curves indicating flow, pressure, efficiency, and power requirements. For pumps, adjacent impeller selections shall be included. For fans, alternate rpm curves shall be included.

G. Motor Tabulation on all motors furnished, listing the following nameplate data: horsepower, voltage, phase, and full load amps.

H. Submittal List: See the individual Mechanical Specification Sections for specific submittal requirements.

END OF SECTION

SECTION 230100: OPERATION AND MAINTENANCE OF HVAC SYSTEMS

PART 1: GENERAL

1.1 MAINTENANCE AND OPERATING MANUALS

A. Provide manual in number of copies indicated under Section 23 0010 General Provisions - HVAC.

B. Material submitted in the manuals shall represent the equipment manufacturer, model, and type installed on the project.

PART 2: PRODUCTS

2.1 MAINTENANCE AND OPERATING MANUALS

A. Maintenance and Operating Manuals shall consist of the following as a minimum:

1. Hardback three-ring binders with job name, Owner's name, work order (WO #), and Bid number on the cover.

2. Typed index listing name, address, and phone number of the General Contractor, HVAC Subcontractor, Insulation Subcontractor, Sheetmetal Subcontractor, and Controls Subcontractor, and all major equipment suppliers.

3. Typed table of contents, listing each Section, title, and number.

4. All Sections shall be tabbed with plastic tabs listing Section numbers.

5. Each item of equipment requiring maintenance and operation data as noted in each specification section shall be provided with an index listing the types of equipment installed. Submittal data shall be included to the extent necessary to identify equipment, including summary sheet, such as model, size, air or water flow, pressure developed, speed, and motor size. Instructions shall include type and suggested frequency of maintenance, oiling, cleaning, disassembly and reassembly directions, and wiring diagrams.

6. Make, model, serial number, and purchase order number of every item of equipment shall be identified on all documentation.

7. One section shall include a complete set of record control drawings, bound in a plastic insert, full size, complete with a written sequence of operation for all control systems.

8. Letters, where factory startup or checking has been required, certifying completion of performance.

9. Provide three (3) hard copy sets and one electronic set of all aforementioned items in PDF format to the owner.

10. Contractor's signed warranty letter certifying all work has been completed as required and stating what date warranty shall end.

11. Table showing all major pieces of equipment and when the warranty of the equipment expires.

PART 3: EXECUTION

3.1 MAINTENANCE AND OPERATING MANUALS

A. All maintenance and operating manuals shall be complete and ready to turn over to Owner's representative at final inspection.

B. Incomplete manuals will be returned to the Contractor for complete resubmission. Loose-leaf submittal of material at various stages of completion will not be acceptable.

C. Contractor to submit to Engineer of Record for review two (2) weeks prior to completion of project.

END OF SECTION

SECTION 230500: COMMON WORK RESULTS FOR HVAC

PART 1: GENERAL

1.1 DESCRIPTION

A. This Section of specifications deals with materials and methods pertaining to all work specified under Division 23.

1.2 RELATED SECTIONS

A. Section 23 0010 General Provisions Mechanical

1.3 SUBMITTALS

A. See General Conditions for submittal procedure.

B. Provide submittal data showing starter dimensions, weight, electrical requirements, and service access requirements.

C. Provide submittal data showing motor horsepower, electrical requirements, and efficiency.

D. Provide submittal data showing firestop systems, including details for penetrations and instructions for installation.

E. Provide manufacturer’s instructions, indicate installation and support requirements.

1.4 JOB CONDITIONS

A. Install all apparatus to maintain maximum headroom and clearances consistent with requirements of the drawings and specifications.

B. All equipment requiring service shall be installed to permit access for servicing without damage to building structure or finishes.

PART 2: PRODUCTS

2.1 DRIVES

A. Belt drives shall be sized for 150% of motor horsepower. Motor pulleys shall be cast iron, adjustable pitch for 15 hp and below, fixed pitch above 15 hp.

B. Drive speeds scheduled are estimated; provide fixed or adjustable pitch sheaves necessary to deliver scheduled air quantities based on actual static pressure in the system.

C. Multiple belt drives shall be used on motors 5 horsepower and larger.

2.2 DRIVE GUARDS

A. Drive guards shall be provided for all driven equipment. Drive guards shall be designed to meet OSHA requirements.

B. Belt drive guards shall be constructed of galvanized expanded metal reinforced with galvanized angle steel frame. Guard shall be welded or formed of one piece of material.

C. Provide minimum 3" diameter access plate at motor shaft and driven apparatus shaft for belt guards. Access plates shall be attached with aircraft type locking wing nuts.

D. Drive guards shall be rigidly bolted to the frame of the equipment. All drive guards shall be removable.

HVAC SPECIFICATIONS

2.3 MOTORS

A. Provide motors for all equipment required by the Mechanical Sections unless otherwise specified. Motors shall operate using Electrical characteristics shown on the Drawings and as specified. Multiple units of the same manufacturer’s equipment shall be furnished with motors by one manufacturer. Motors shall be Century, Louis-Allis, Baldor-Reliance, General Electric, Westinghouse, Marathon, or US Motors, except where furnished as part of packaged equipment.

B. Standards: Except where otherwise specified, motors shall be manufactured according to NEMA Standards. They shall be NEMA Design B, Continuous Duty, 1.15 service factor, Insulation Class B or F, 40°C. ambient and 40° rise. Hermetic motors shall be manufactured according to AHRI Standards.

C. Efficiency: All design A & B squirrel-cage, foot-mounted, single-speed T-frame induction motors 1 hp and larger having synchronous speeds of 3600, 1800, and 1200, rpm shall have a nominal full-load motor efficiency no less than that shown below or shall be classified under NEMA standard as “ENERGY EFFICIENT”: Please refer to the chart entitled “Minimal Nominal Full-Load Efficiencies (%)” at the end of this section.

D. Sizes:

1. Motors with standard NEMA Electrical characteristics shall be selected for the design brake horsepower without overload current at rated voltage. Motor horsepower rating shall not exceed 125% of the calculated maximum load being served. If a standard rated motor is not available within the range, the next larger standard motor size shall be used.

2. Motors with special electrical characteristics, such as hermetic refrigeration motors, shall be selected to product the brake horsepower required for the specified load without overload current at rated voltage.

E. Enclosures: Motor enclosures shall be open drip-proof, except where otherwise specified. Motors for equipment installed where subject to weather shall be fan cooled, totally enclosed weatherproof type, unless fully protected by a waterproof housing.

F. Nameplates: All motors shall have a nameplate showing the specified nominal system voltage as nameplate rated voltage. Each motor shall be guaranteed to operate satisfactorily at the specified nominal system voltage, plus or minus 10%.

2.4 CONTACTORS

A. Contactors shall be magnetic designed for resistance heating and tested for 100,000 cycles. Contacts shall be silver alloy. Enclosure shall meet the requirements of UL 508 with NEMA Type 1 indoors, and Type 3R outdoors.

Provide one set of auxiliary contacts and control transformer with fused, grounded secondary. Holding coil voltage shall not exceed 120 volts.

B. Manufacturers: Clark Controller, Arrow-Hart, Cutler-Hammer, Allen-Bradley, Square D, or Siemens (Furnas).

2.5 STRUCTURAL ATTACHMENTS

A. Concrete Fasteners/Anchors

1. Fasteners shall be self-drilling type, Bull Dog, Phillips "Red Head", or Diamond "Blue-Cut".

2. Fasteners shall be used in solid masonry walls and shall be used in solid concrete walls.

B. Toggle Bolts with not less than 1/4² diameter bolts shall be used in hollow-type wall construction.

C. Clamps of configuration compatible with beams and steel members shall be used in steel construction. Clamps shall be Grinnell, Michigan Hanger, Elcen, or B-Line.

D. Hanger rods shall be selected to safely carry the load to be supported and shall not be less than the diameter listed by the hanger manufacturers for the specific size hanger used.

2.6 ACCESS PANELS

A. Access panels shall be flush concealed hinge and latch type complete with frame. Panels shall be minimum 24² x 24², selected for the specific type of ceiling or wall where installed. Locks shall be flush screw turn type.

B. Panels shall be primed for finish painting in ceilings or walls to be painted.

C. Panels installed in rated walls or ceilings shall be UL listed for the same rating as the wall in which they are to be installed, except 1½ hour panels are acceptable in two-hour walls.

2.7 FIRESTOP SEALANT

A. Firestop sealant shall be a synthetic elastomer caulk, strip, or sheet designed for use as a one-part fire, smoke, and gas sealant. Material shall be intumescent and capable of being installed with caulk gun, shears, and putty knife. Material shall be UL classified and Factory Mutual approved for sealing in floors, walls, or partitions to three-hour rating per ASTM E-814.

B. Fire barrier material shall be 3M Fire Barrier Sheet, Strip, and Caulk.

2.8 ASBESTOS

A. All materials used in this work shall be asbestos free.

PART 3: EXECUTION

3.1 INSTALLATION

A. All work shall be installed plumb and square unless clearly indicated otherwise. Installation shall be performed by competent persons, trained in their respective skills.

B. Furnish and install equipment complete, including connections, services and adjustments for systems to operate safely and in compliance with requirements of the contract.

C. Install each item in full compliance with current recommendations of the manufacturer. Equipment manufacturer or his authorized representative shall furnish services and/or supervision necessary to ensure compliance with this provision. Conflict between manufacturer's recommendation and other contract requirements shall be resolved before installation.

D. Requirements of the several acceptable manufacturers for each specified item of equipment may vary as to installation details, location and number of connections, dimensions and weight. Provide all drawings, services, material, and labor necessary for the installation and proper functioning of the equipment furnished.

3.2 PROTECTION OF MATERIALS AND EQUIPMENT

A. Take precautions to protect all materials and equipment from damage during the construction process.

B. Do not store materials and equipment outdoors subject to weather without complete weather protection.

C. Do not install materials or equipment in a partially constructed structure exposed to weather, unless all material and equipment is continuously protected from damage by weather or the construction process.

D. Material and equipment damaged by improper protection during construction is subject to replacement based on the judgment of the Engineer at no cost to the Owner.

3.3 CUTTING AND REPAIRING

A. Cut and repair all walls, floors, and ceilings necessary for the installation of the mechanical work, but no cutting of work of other trades will be permitted without the consent of the Architect or his representative.

B. All cutting and repairing of walls, floors, and ceilings shall be subject to the supervision and approval of the Contractor.

3.4 CLEANING AND FINAL CLEAN-UP

A. Keep the premises free of waste, debris, and surplus materials.

B. The installing contractor must take appropriate precautions during construction to prevent dust and debris from getting into ductwork and piping systems by covering equipment, controls, and open-ended ducts and pipes while installation progresses.

C. After equipment has been installed, remove all extraneous materials, rust and stains; blow, vacuum or flush all foreign matter from all equipment.

D. Identification plates on equipment shall be free of paint and shall be polished.

3.5 DRIVES AND GUARDS

A. All belt drive alignments shall be properly checked and set prior to starting machinery.

B. Adjust drives to deliver air quantities scheduled at actual static pressures. Change sheaves to meet actual conditions, if required.

C. Provide one set of spare belts to be turned over to the Owner at the completion of the work for each air handling unit drive.

D. All equipment guards shall be OSHA compliant and installed prior to operation of equipment.

3.6 MOTOR VOLTAGES

A. All motor voltages shall be checked with the electrical drawings prior to preparation of submittals or ordering of equipment.

3.7 MOTOR STARTER OVERLOADS

A. Motor overload heaters shall be sized and installed to protect the actual motor furnished.

3.8 STRUCTURAL ATTACHMENTS

A. Inserts shall be used for individual loads exceeding 150 lbs. Concrete fasteners may be used where approved in writing by Architect for individual loads of 150 lbs. or less.

B. Inserts shall be secured to the forms before the pouring of concrete. In all spaces with exposed concrete ceilings, the openings not filled with rods and nut shall be filled with cement grout flush with the ceiling.

C. Shooting of fasteners into the slab shall be allowed only in approved locations.

D. Devices for connection to the structure shall not be loaded more than 75% of the manufacturer's rated load.

3.9 ACCESS PANELS

A. Access panels shall be installed at all points where equipment, devices or apparatus requiring adjustment, maintenance or servicing cannot be readily accessed through the ceiling or wall.

B. Accessible ceilings are defined as lay-in frame type and access panels are not required for equipment or apparatus above these ceilings.

C. Panels shall be located so that apparatus or equipment can be reached by an arm's length.

3.10 PAINTING

A. Except where otherwise specified, painting shall be done under another Division. Surfaces shall be left clean and free from oil.

B. Finishes of factory-painted apparatus shall be touched up where finish is marred in installation.

C. Where galvanizing is broken during fabrication or installation, recoat exposed areas with cold galvanizing compound.

D. Interior ferrous pipe and supports exposed to view without removing ceilings or access panels shall be primed and topcoated with two coats of semi-gloss paint, color selected by Architect.

E. Exterior ferrous piping and supports shall be primed and topcoated with two coats exterior satin finish paint, color selected by Architect.

F. Air handling units and exhaust fans shall be identified as specified in Section 23 0553 Identification for HVAC Piping and Equipment.

G. All ductwork, conduits, insulation, pipe, and structure visible through grilles and diffusers shall be primed and topcoated with two coats of black egg-shell finish paint.

3.11 FIRESTOP SEALING FLOOR AND WALL PENETRATIONS

A. Where ductwork, piping, control tubing, and conduit penetrate fire- or smoke-rated walls and floors, the penetration shall be sealed with fire barrier herein specified.

B. Fire barrier shall be installed in strict accordance with manufacturer's printed instructions. Material shall be installed with sufficient depth to maintain a fire endurance rating equivalent to that of the adjacent wall or floor.

3.12 REFRIGERATION SYSTEMS

A. Any work required on new or existing refrigeration systems shall involve the use of a refrigeration recovery/recycling unit. All refrigerants shall be stored and reused in the system where the refrigerant condition allows.

Intentional release of refrigerant is prohibited and will not be allowed.

3.13 LUBRICATION

A. All equipment installed under this division shall be properly lubricated in accordance with the manufacturer’s instructions and recommendations before it is operated during the installation period and shall be checked again before final acceptance.

END OF SECTION

SECTION 230523: HVAC VALVES AND STRAINERS

1.1 DESCRIPTION

A. This section specifies the valves and strainers common to the heating and air conditioning piping systems of Division 23.

1.2 RELATED SECTIONS

A. Section 23 0500 Common Work Results for HVAC B. Section 23 2000 Pipe, Fittings, and Accessories C. Section 23 2113 Hydronic Piping

1.3 QUALITY ASSURANCE

A. All gate, globe, and check valves provided under Mechanical Sections shall be of the same domestic manufacturer, except as otherwise specified.

B. All other valves of a given type shall be by the same domestic manufacturer.

C. All valves shall have asbestos-free packing and gaskets.

D. All brass alloys used in valves shall contain a maximum of 15% zinc.

PART 2: PRODUCTS

2.1 GATE VALVES

A. Valves 2² and under shall be 125lb class bronze body threaded, rising stem, union bonnet, solid wedge, malleable iron handwheel meeting MSS SP-80.

B. Valves shall be Hammond, Milwaukee, Nibco, or Stockham/Crane.

2.2 GLOBE VALVES

A. Valves 2² and smaller shall be 125lb class ASTM B-62 bronze body, threaded, union bonnet, malleable iron handwheel, composition or Teflon disc for selected service, meeting MSS SP-80.

B. Seats and discs shall be selected for water service as required.

C. Valves shall be Hammond, Milwaukee, Nibco, or Stockham/Crane.

2.3 CHECK VALVES IN HORIZONTAL PIPE

A. Valves 2² and under shall be 125lb class bronze body, threaded, swing type, with full flow area and renewable composition or Teflon disc stainless hinge pin, meeting MSS SP-80.

B. Seats shall be selected for water service, as required.

C. Valves shall be Hammond, Milwaukee, Nibco, or Stockham/Crane.

2.4 CHECK VALVES IN VERTICAL PIPE

A. Valves 2² and under shall be bronze construction, silent spring type, screwed with stainless steel spring and resilient seat. Valves shall be rated for 200 psi non-shock WOG.

B. Seats shall be selected for water service as required.

C. Vertical check valves shall be Muessco/Mueller, Hammond, Mission, Milwaukee, or Nibco.

2.5 BALL VALVES

A. Ball valves 2² and under shall be bronze body, threaded or solder, full port, blowout proof stem, solid stainless or chromed ball, 2² extended handles of non-thermal conductive material to accommodate pipe insulation, memory stop, rated for 600 psi non-shock WOG, and meeting MSS SP-110.

B. Ball valves shall be Apollo, Hammond, Nibco, or Watts.

2.6 BALANCING VALVES

A. Valves 2² and under shall be ball type threaded for steel pipe, solder joint for copper pipe. Valves shall be line size, bronze body suitable for shut-off service, memory stop, 200 psig working pressure construction with pressure ports for adjusting flow within ± 3%. Valves shall be Armstrong CBV series, Bell & Gossett Circuit Setter Plus, Flow Set AP series, Victaulic IMI-TA 786/787 or Taco Accu-Flo.

B. Balancing valves shall be globe style, all bronze circuit balancing type with memory setting, drain plug and correction and gauge tops and cocks. Valves shall be flanged for size and rated for 250 psi at 300°F. Balancing valves shall be Armstrong CBV, Illinois Series 6000, or Sarco Balance Master.

2.7 TRIPLE-DUTY VALVES

A. Triple-duty valves shall be cast iron body rated for 175 psig working pressure design to function as non-slam check valve, isolation valve and balancing valve. Valve shall be flanged 2½² and above, NPT threaded 2² and under. Valve shall be spring-loaded with stainless spring, soft brass seat, brass readout valves and shall allow re-packing under full pressure.

B. Triple-duty valves shall be Armstrong, Bell & Gossett, or Taco.

2.8 RELIEF VALVES

A. Relief valves for water systems shall be full size minimum, ASME rated for 250 psi and stamped. Valves 2² and under shall be all bronze construction. Pressure settings shall be as specified or shown on the plans.

B. Valves shall be Kunkle, Spirax Sarco, or Watts.

2.9 PRESSURE REDUCING VALVES

A. Pressure reducing valves shall be 125 lb class all bronze type with integral strainer. Valve capacity shall be not less than 15 GPM at 20 psi differential pressure.

B. Water valves shall be Armstrong, Bell & Gossett, Taco, Thrush, or Watts.

C. Steam valves shall be Armstrong, Spence, or Spirax Sarco.

2.10 STRAINERS

A. Strainers 2² and smaller shall be 125lb class iron or bronze body, threaded, 'Y' type complete with screwed cap and basket.

B. Strainer baskets shall be as follows:

Service Material Perforation Open Area Hot water Brass 1/10² 35%

C. Strainers shall be Crane, Hoffman, Keckley, Mueller, or Watts.

PART 3: EXECUTION

3.1 BALL VALVES

A. Ball valves may be used in lieu of gate and globe valves at the contractor's option in chilled water, condenser water, and tempered water systems in pipe sizes 2² and smaller.

3.2 STRAINERS

A. Strainers in steam piping shall be installed rotated on their side in the horizontal plane.

B. All strainers shall be provided with blow down ball valve with cap and chain.

3.3 GENERAL

A. Valves shall be line size unless otherwise noted.

B. Gate, globe, and ball valves installed in horizontal piping shall have valve stems upright where possible. Butterfly valves shall be installed with the stem in the horizontal position where possible.

C. Set pressure-reducing valves for pressures noted on the plans.

END OF SECTION

SECTION 230549: VIBRATION ISOLATION

PART 1: GENERAL

1.1 DESCRIPTION

A. This Section specifies vibration isolation requirements for Mechanical Systems.

1.2 RELATED SECTIONS

A. Section 23 0010 General Provisions - HVAC B. Section 23 0500 Common Work Results for HVAC

1.3 SUBMITTALS

A. See General Conditions for submittal procedure.

B. Provide product data, including schedule of isolator type, associated equipment, and load at each point based on manufacturer’s operating weight, and actual deflection at each loading point for each piece of isolated equipment.

C. Provide manufacturer’s installation instructions, including setting and anchoring instructions.

PART 2: PRODUCTS

2.1 MANUFACTURER

A. All vibration isolation equipment shall be furnished by one manufacturer. Equipment shall be by Aeroflex (VMC), Amber/Booth (VMC), Mason, or Vibro-Acoustics (Swegon).

2.2 ISOLATION EQUIPMENT

A. Isolation equipment selection shall be based on actual mechanical equipment to be installed, providing uniform load distribution and deflection.

2.3 ISOLATORS

A. Isolators shall conform to the following:

1. Type 1. Spring isolators, free standing, laterally stable, unhoused, bolt holes in base, top leveling bolt, and neoprene acoustical isolation pad on base. Horizontal to vertical stiffness ratio shall not be less than .8. Spring outside diameter shall not be less than .8 of the operating height. Minimum additional travel to solid shall not be less than 50% of rated deflection.

2. Type 2. Isolators shall be similar to Type 1 except housed. Isolators shall have, in addition to Type 1 requirements, vertical adjustable limit stops, and inserts to isolate limit stops from housing.

3. Type 3. Neoprene double deflection base mount isolators with all metal surfaces covered, bolt holes, and ribbed top and bottom.

4. Type 4. Double deflection neoprene hanger type isolator with neoprene bushing between hanger and rod housing to prevent metal to metal contact.

5. Type 5. Combination hanger isolator with spring and double deflection neoprene element in series and neoprene bushing in base to prevent metal to metal contact. Spring diameter shall not be less than .8 of the operating height. Springs should have a minimum deflection of 1", with not less than 50% additional travel to stop. Rod shall be able to swing 20° out of alignment before contacting housing.

6. Type 6. Twin sphere piping flexible connectors constructed of neoprene reinforced with multi-layer nylon tire cord fabric and galvanized ductile iron flanges. Isolators shall be complete with control cables and shall be rated for operation at 180 psi at 200°F.

7. Type 7. Molded neoprene isolator pad, waffle molded surface top and bottom, selected for loading of 40 psi unless noted otherwise. Pad shall be a minimum of ½" thick.

8. Isolators located on systems installed outdoors shall have weatherproof finish.

PART 3: EXECUTION

3.1 INSTALLATION

A. There shall be no direct contact of isolated piping or equipment with shaft walls, floor slabs, partitions, or conduits.

B. Where recommended by the manufacturer, isolator base plates shall be bolted to the structure or foundation. Bolting shall incorporate neoprene bushings and washers.

C. After installation, verify isolators are properly adjusted, with springs perpendicular to bases or housing, adjustment bolts are tightened up on equipment mountings, and hangers are not cocked.

END OF SECTION

SECTION 230553: IDENTIFICATION FOR HVAC PIPING AND EQUIPMENT

PART 1: GENERAL

1.1 DESCRIPTION

A. This section specifies the identification requirements for the mechanical systems.

1.2 RELATED SECTIONS

A. Section 23 0010 General Provisions HVAC B. Section 23 0500 Common Work Results for HVAC Systems

1.3 SUBMITTALS

A. See General Conditions for submittal procedure.

B. Provide product data showing label illustrations and application locations.

1.4 SUMMARY:

A. Section includes:

1. Duct Identification.

2. Valve Tags and Schedules.

3. Engraved Plastic Signs.

4. Engraved Equipment Markers.

5. Plastic Tags.

1.5 REFERENCES

A. American National Standards Institute (ANSI): ANSI A13.1 Scheme for the Identification of Piping Systems, current edition.

B. Department of Labor 29 CFR 1910.1200.

1.6 SUBMITTALS

A. Product Data: Submit manufacturer’s technical product data and installation instructions for each identification material and device required.

B. Schedules: Submit valve schedule for each piping system, typewritten and produced on 8½" x 11" bond paper. Include valve number, piping system, system abbreviation (as shown on tag), location of valve (room or space), and any variations for identification. If addition to framed copies, furnish extra copies for maintenance manuals as specified in Division 1.

1.7 QUALITY ASSURANCE

A. Manufacturer’s Qualifications: Firms regularly engaged in manufacture of identification products of types and sizes required, whose products have been in satisfactory use for a period of five (5) years.

B. Codes and Standards: Comply with ANSI A13.1 for lettering size, length of color field, colors, and viewing angles of identification products.

PART 2: PRODUCTS

2.1 MECHANICAL IDENTIFICATION MATERIALS

A. Provide manufacturer’s standard products for each application as referenced in this section.

2.2 PLASTIC DUCT MARKERS

A. Pressure-Sensitive Type: Provide manufacturer’s standard preprinted, 2¼" x 13", permanent adhesive pressure sensitive vinyl duct markers complying with ANSI A13.1 indicating duct service (supply, return, exhaust, etc.).

Include separate directional arrows to indicate airflow.

2.3 VALVE TAGS

A. Plastic Tags: Provide manufacturer’s standard 1/16" plastic engraved tags, 1½" square, black with white lettering, with ¼" high service indicator on top line and ½" numbers below.

B. Valve Tag Fasteners: Use solid brass “S” hooks for installation of valve tags.

C. Chart Frames: Provide one (1) aluminum 8½" x 11" valve chart frame with glass lens for each valve schedule provided.

D. Access Panel Markers: Provide manufacturer’s standard 1/16" thick engraved plastic access panel markers with abbreviations and numbers corresponding to the concealed valve.

2.4 ENGRAVED PLASTIC EQUIPMENT MARKERS

A. Provide manufacture’s standard 1/16" engraved equipment tags matching the terminology on schedules as closely as possible. Use black with white letters, 1" x 3" or 1½" x 4" for control devices, dampers, and valves and 4" x

6" for equipment. Use green with white letters, 3" long x the ceiling grid width for equipment above lay-in ceilings.

PART 3: EXECUTION

3.1 GENERAL INSTALLATION REQUIREMENTS

A. Where identification is to be applied to surfaces requiring painting, insulation, or other covering or finish, including valve tags in finished mechanical spaces, install identification after completion of covering and painting. Install identification prior to installation of acoustical ceilings and similar removable concealment.

3.2 DUCTWORK IDENTIFICATION

A. General: Identify air supply, return, exhaust, intake, and relief ductwork with duct markers as specified.

B. Location: In each space where ductwork is exposed or concealed by removable ceilings.