section 23 21 13 - hydronic piping: execution requirements...

SECTION 23 21 16

HYDRONIC PiPiNG SPECiALTiES

PART 1 GENERAL

1.01 SUMMARY

A. Section Includes:

1. Teat plug&

2. Air vents.

3. Strainers.

4. Automatic flow control valves.

Related Sections:

1,

1.02 REFERENCES

A.

Section 23 21 13 - Hydronic Piping: Execution requirements for pipingconnections to products specified by this section.

American Society of Mechanical Engineers:

I, ASME 840.1 - Gauges - Pressure Indicating Dial Type = Elastic ElemenL

2, ASME Section VIII - Boiler and Pressure Vessel Code - Pressure Vessels,

ASTM International:

ASTM E'I - Standard Specification for ASTM Thermometers.

inspection and Verification of2. ASTM E77 = Standard Test Method for

Thermometers.

American Water Works Association:

'L AWWA C700 - Cold=Water Meters - Displacement Type, Bronze Main Case.

2. AWWA C70'• - Cold-Water Meters - Turbine Type, for Customer Service.

3. AVWVA C702 - Cold-Water Meters - Compound Type.

4. AWWA C706 - Direct-Reading, Remote-Registration Systems for Cold-WaterMeters.

5. AWWA M6 - Water Meters - Selection, Installation, Testing, and Maintenance.

Underwriters Laboratories Inc.:

1. UL 393 - indicating Pressure Gauges for Fire-Protection Service.

Section 23 21 16 - Hydronic Piping Specialties -

1.03 SUBMITTALS

A.

B.

UL 404 - Gauges, Indicating Pressure, for Compressed Gas Service.

Section 01 33 O0 - Submittal Procedures: Submittal procedures

Product Data: Submit for manufactured products and assemblies used in this Project.

Manufacturer's data indicating use, operating range, total range, accuracy, andlocation for manufactured components.

2 Submit product description, model, dimensions, component sizes, rough-inrequirements, service sizes, and finishes.

3 Submit schedule indicating manufacturer, model number, size, location, ratedcapacity, load served, and features for each piping specialty.

4 Submit electrical characteristics and connection requirements.

C Manufacturer's Installation Instructions: Submit hanging and support methods, joiningprocedures, application, selection, and hookup configuration. Include pipe and accessoryelevations.

.04 CLOSEOUT SUBMITTALS

A. Section 01 70 00 - Execution and Closeout Requirements: Closeout procedures.

B. Project Record Documents: Record actual locations of actual •ocations of componentsand instrumentation, flow controls and flow meters.

C. Operation and Maintenance Data: Submit instructions for calibrating instruments,installation instructions, assembly views, servicing requirements, •ubrication instruction,and replacement parts list.

.05 QUALIFICATIONS

A Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years experience.

B Installer: Company specializing in performing Work of this section with minimum threeyears experience.

.08 DELIVERY, STORAGE, AND HANDLING

A. Section 01 60 00 - Product Requirements: Product storage and handling requirements.

B. Accept piping specialties on site in shipping containers with •abeling in place. Inspect fordamage.

C. Provide temporary protective coating on cast iron and steel valves.

D. Protect systems from entry of foreign materials by temporary covers, caps and closures,completing sections of the work, and isolating parts of completed system until installation.

1.07 ENVIRONMENTAL REQUIREMENTS


1.08

1.09

PART 2

2,01

2.02

2.03

supports and test plugs,

FIELD MEASUREMENTS

A. Verify field measurements before fabrication.

WARRANTY

A. Section 01 70 00 - Execution and Closeout Requirements:

product bonds.

Section 01 60 00 - Product Requirements.

Do not install instruments when areas are under construction, except rough in, taps,

Product warranties and

PRODUCTS

TEST PLUGS

A. 1/4 inch NPT or 1/2 inch NPT brass or stainless steel fitting and cap for receiving 1/8 inchoutside diameter pressure or temperature probe with:

1. Neoprene core for temperatures up to 200 degrees F.

B. Test Kit:

1= Carrying case, internally padded and fitted containing:

a. Two 2-1/2 inch diameter pressure gages.

b. Two gage adapters with 1/8 inch probes,c. Two 1 inch dial thermometers.

AIR VENTS

A Manual Type: Short vertical sections of 2 inch diameter pipe to form air chamber, with 1/8inch brass needle valve at top of chamber.

Float Type

1 Cast Iron body, stainless steel float, stainless steel valve and valve seat; suitablefor system operating temperature and pressure; with isolating valve.

2. Manufacturers

a, Taco Model 409

b Bell & Gossett Model 107A

STRAINERS

A, Size 2 inch and Smaller:

1, Screwed brass or iron body for 175 psig working pressure, Y pattern with 1/32inch stainless steel perforated screen,

Size 2-1/2 inch to 4 inch:

Section 23 21 16 = Hydronic Piping Specialties -

2,10

1. Flanged iron body for 175 psig working pressure, Y pattern with 3/64 inchstainless stae] perforated screen.

C, Size 5 inch and Larger:

1, Flanged iron body for 175 psig working pressure, basket pattern with 1/8 inchstainless steel perforated screen.

AUTOMATIC FLOW CONTROL VALVES

A. Manufacturers:

1. Flow Design

2. AutoFIow

3. Griswold

B. General:

1. Flow Cartridge Assembly: Stainless steel piston and spring.

2. Pressure and test plugs: Provide two for flow verification. Provide with extensionon insulated piping

3. Identification Tag: Marked with valve number and flow rate.

4, Size: Same as pipe in which installed.

5. Performance: Maintain constant flow, +/- 5 percent over system pressurefluctuations.

6 Testing: Valve to be factory leak tested to t00 psi

7 Valve packages: Where coil piping valve packages are provided in lieu ofindividual components as indicated in the piping detail on the drawings, then the

factory preassembled piping packages shall include elt components shown andthe components of the package shall be as specified in this section and 23 21 13.

C. Valves 2" and smaller:

1, Body: Brass.

2. Removable flow cartridge assembly,

3. Rating: 400 psig minimum cold water pressure', 250 degrees F maximumoperating temperature,

D Valves (2-1/2" and larger):

1. Body: Ductile-Iron - flanged,


Rating: 600 psig minimum cold water pressure; 250 degrees F maximumoperating temperature.

PART 3

3.01

3.03

3.04

3.05

EXECUTION

INSTALLATION - HYDRONIC PIPING SPECIALTIES

A, Locate test plugs as indicated on Drawings.

B. Install manual air vents at system high points.

C. Provide drain and hose connection with valve on strainer blow down connection.

FIELD QUALITY CONTROL

A. Section 01 40 00 - Quality Requirements, 01 70 00 - Execution and CloseoutRequirements: Field inspecting, testing, adjusting, and balancing.

CLEANING

A, Section 01 70 00 = Execution and Closeout Requirements: Requirements for cleaning=

PROTECTION OF INSTALLED CONSTRUCTION

A, Section 01 70 00 = Execution and Closeout Requirements: Requirements for protectinginstalled construction.

END OF SECTION

Section 23 21 "16 - Hydronic Piping Specialties -

PART

1.01

,02

SECTION 23 23 00

REFRIGERANT PiPiNG

GENERAL

SUMMARY


1, Refrigerant piping,

2. Unions, flanges, and couplings.

3, Pipe hangers and supports.

4, Refrigerant moisture and liquid indicators,

5, Refrigerant filter=driers,

B, Related Sections:

1 Section 07 84 00 = Firestopping: Product requirements for firestopping forplacement by this section.

2 Section 09 90 00 = Painting and Coating: Product requirements for painting forplacement by this section,

3 Section 23 05 29 = Hangers and Supports for HVAC Piping and Equipment:Product requirements for pipe hangers and supports, sleeves, [and firestopping]for placement by this section,

4, Section 23 05 33 - •dentification for HVAC Piping and Equipment: Productrequirements for pipe identification for placement by this section,

5. Section 23 07 00 - HVAC Insulation: Product requirements for Piping insulationfor placement by this section.

REFERENCES

A Air-Conditioning and Refrigeration institute:

1. ARI 495 - Refrigerant Liquid Receivers.

2. ARI 710 - Liquid-Line Driers.

3. ARI 730 - Flow-Capacity Rating and Application of Suction-Line Filters and FilterDryers.

4. ARI 750 - Thermostatic Refrigerant Expansion Valves.

5. ARI 760 - Solenoid Valves for Use with Volatile Refrigerants.

Section 23 23 00 - Refrigerant Piping - Page 1

1,03

American Society of Heeting, Refrigerating and Air-Conditioning Engineers:

1, ASHRAE 15 - Safety Code for Mechanical Refrigeration,

American Society of Mechanical Engineers:

1, ASME Bl&22 - Wrought Copper and Copper Alloy Solder Joint PressureFittings.

2. ASME B16.26 * Cast Copper Alloy Fittings for Flared Copper Tubes.

3, ASME B31.5 - Refrigeration Piping.

4. ASME Section VIII - Boiler and Pressure Vessel Code - Pressure Vessels.

ASTM International:

1, ASTM A53/A53M - Standard Specification for Pipe, Steel, Black and Hot-Dipped,Zinc-Coated, Welded and Seamless.

2. ASTM A234/A234M - Standard Specification for Piping Fittings of WroughtCarbon Steel and Alloy Steel for Moderate and High Temperature Service.

3. ASTM B88 - Standsrd Specification for Seamless Copper Water Tube.

4. ASTM 8280 - Standard Specification for Seamless Copper Tube for AirConditioning and Refrigeration Field Service.

5, ASTM F708 - Standard Practice for Design and Installation of Rigid Pipe

Hangers.

6. ASTM B749 - Standard Specification for Lead and Lead Alloy Strip, Sheet, andPlate Products.

American Welding Society:

1, AWS A5.8 - Specification for Filler Metals for Brazing and Braze Welding.

2. AWS D1 .t - Structural Welding Code - Steel

Manufacturers Standardization Society of the Valve and Fittings Industry:

1. MSS SP 58 - Pipe Hangers and Supports - Materials, Design and Manufacturer.

2. MSS SP 69 - Pipe Hangers and Supports - Selection and Application.

3. MSS SP 89 - Pipe Hangers and Supports - Fabrication and Installation Practice&

G Underwriters Laboratories Inc.:

1. UL 429 - Electrically Operated Valves,

SYSTEM DESCRIPTION

A, Where more than one piping system material is specified, provide compatible system


components and joints. Use non-conducting dielectric connections when joining dissimilarmetals in systems.

Provide flanges, unions, or couplings at locations requiring servicing. Use unions,flanges, or couplings downstream of valves and at equipment connections. Do not usedirect welded or threaded connections to valves or equipment.

C, Provide pipe hangers and supports in accordance with ASME B31.5.

D Liquid Indicators:

Use line size liquid indicators in main liquid line leaving condenser

1.04 SUBMITTALS

A. Section 01 33 00 - Submittal Procedures: Submittal procedures,

Shop Drawings: indicate layout of refrigeration piping system, including equipment,critical dimensions, and sizes. Refrigerant piping diagram indicated on drawings isschematic only. Size and design the layout and installation of the piping, includingtraps, double risers, specialties, and pipe and tube sizes, to ensure proper operation andconformance with warranties of connected equipment.

Condensing unit manufacturer shall review and approve the piping diagram prierto submitting.

C. Product Data:

1. Piping: Submit data on pipe materials, fittings, and accessories.

Refrigerant Specialties: Submit manufacturers catalog information includingcapacity, component sizes, rough-in requirements, and service sizes for thefollowing:

Refrigerant moisture and liquid indicators,Refrigerant filter-driers.

D. Test Reports: Indicate results of refrigerant leak test,

Welders Certificates: Certify welders employed on the Work, verifying AWS qualificationwithin previous 12 months.

1.05 CLOSEOUT SUBMITTALS

A, Section 01 70 00 - Execution and Closeout Requirements: Closeout procedures.

Project Record Documents: Record actual locations of valves, equipment and refrigerantaccessories.

Operation and Maintenance Data: Submit instructions for installation and changingcomponents, spare parts •ists, exploded assembly views.

1,06 QUALITY ASSURANCE

A, Perform Work in accordance with ASME B31,5 code for installation of refrigerant piping


PART

2,01

systems.

1.07 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years documented experience,

B. Fabricator or installer: Company specializing in performing Work of this section withminimum three years documented experience,

1.08 DELIVERY, STORAGE, AND HANDLING

A. Section 01 60 00 = Product Requirements: Product storage and handling requirements,

B. Dehydrate and charge refrigeration components including piping and receivers, seal priorto shipment, Maintain seal until connected into system.

C. Provide temporary end caps and closures on piping and fittings, Maintain in place untilinstallation.

D. Protect piping systems from entry of foreign materials by temporary covers, completingsections of the Work, and isolating parts of completed system,

1.09 ENVIRONMENTAL REQUIREMENTS

A. Section 01 60 00 - Product Requirements.

"I,10 FIELD MEASUREMENTS

A. Verify field measurements prior to fabrication.

1.11 COORDINATION

A. Section 01 30 00 - Administrative Requirements: Requirements for coordination.

t. 12 WARRANTY

A= Section 01 70 00 - Execution and Closeout Requirements: Product warranties andproduct bonds.

1.13 MAINTENANCE MATERIALS

A, Section 01 70 00 = Execution and CIoseout Requirements: Spare parts and maintenanceproducts.

1.14 EXTRA MATERIALS

A. Section 01 70 00 - Execution and C•oseout Requirements: Spare parts and maintenanceproducts.

PRODUCTS

REFRIGERANT PIPING

A, Copper Tubing: ASTM B280, Type ACR hard drawn.

Section 23 23 00 = Refrigerant Piping - Page 4

2=02

2.03

2.04

1. Fittings: ASME 816.22 wrought copper.

2. Joints: Braze, AWS A5,8 BCuP silvedphosphorus/copper alloy with meltingrange 1190 to 1480 degrees F.

B, Copper Tubing to 7/8 inch OD: ASTM B88, Type K, annealed,

1. Fittings: ASME B16.2B cast copper, compression type,

2. Joints: Flared.

UNIONS, FLANGES, AND COUPUNGS

A, 2 inches and Smaller:

1. Ferrous Piping: 150 psig malleable iron, threaded.

2. Copper Pipe: Bronze, soldered joints.

B. Dielectric Connections: Union with galvanized or plated steel threaded end, copper solderend, water impervious isolation barrier.

P•PE HANGERS AND SUPPORTS

A, Copper Pipe Support: Carbon steel rings, adjustable, copper plated,

B. Hanger Rods: Mild steel threaded both ends, threaded one end, or continuous threaded.

REFRIGERANT MOISTURE AND LIQUID INDICATORS

A. Indicators:

t. Port: Single, UL listed.

2. Body: Copper or brass, flared or solder ends.

3, Sight glass: Color-coded paper moisture indicator with removable elementcartridge and plastic cap.

4. Maximum working pressure: 500 psig.

5. Maximum working temperature: 200 degrees F.

2,05 REFRIGERANT FILTER-DRIERS

A. Permanent Type:

1. Shell: ARI 710, UL listed, brass removable cap, for maximum working pressure

of 500 psig.

2. Filter Carl:ridge: Pleated media with integral end rings, stainless steel support.

3. Filter/Dryer Cartridge: Pleated media with solid core sieve with activated alumina.


PART3

3.01

EXECUTION

EXAMiNATiON

A. Section 01 30 00 = Administrative Requirements: Coordination and project conditions.

3•02 PREPARATION

A. Ream pipe and tube ends. Remove burr&

B. Remove scale and dirt on inside and outside before assembly.

C. Prepare piping connections to equipment with flanges or unions.

D. Keep open ends of pipe free from scale and dirt. Protect open ends with temporary plugsor caps.

3.03 INSTALLATION - PIPE HANGERS AND SUPPORTS

A. Install hangers and supports in accordance with ASME 831.5, ASTM F708, andMSS SP 89.

B, Support horizontal piping hangers as scheduled.

C, Install hangers to provide minimum 1/2 inch space between finished covering andadjacent work.

D, Place hangers within 12 inches of each horizontal elbow,

E, Install hangers to allow 1-1/2 inch minimum vertical adjustment, Design hangers for pipemovement without disengagement of supported pipe.

F. Where installing several pipes in parallel and at same elevation, provide multiple pipehangers or trapeze hangers.

G. Provide copper plated hangers and suppori:s for copper piping

H= Prime coat exposed stael hangers and supports in accordance with Section 09 90 00.Hangers and supports located in crawl spaces, pipe shafts, and suspended ceilingspaces are not considered exposed,

L Install pipe hangers and supports in accordance with Section 23 05 2£

3.04 INSTALLATION - ABOVE GROUND PIPING SYSTEMS

A. Route piping parallel to building structure and maintain gradient.

B. Install piping to conserve building space, and not interfere with use of space.

C. Sleeve pipe passing through partitions, wails and floors. Refer to Section 23 05 29.

D •nstall pipe identification in accordance with Section 23 05 33.

E. Arrange refrigerant piping to return oil to compressor. Provide traps and loops in piping,and provide double risers as required. Slope horizontal piping &40 percent in direction of

Section 23 23 00 = Refrigerant Piping - Page 6

3.05

3.06

G.

H,

J.

K.

L.

M.

flow•

Flood refrigerant piping system with nitrogen when brazing.

Where pipe support members are welded to structural building framing, scrape, brushclean, and apply one coat of zinc rich primer to welds. Refer to Section 05 12 00,

Prepare unfinished pipe, fittings, supports, and accessories, ready for finish painting.Refer to Section 09 90 00.

Insulate piping and equipment; refer to Section 23 07 00.

Locate expansion valve sensing bulb immediately downstream of evaporator on suctionline.

Provide external equalizer piping on expansion valves with refrigerant distributorconnected to evaporator.

Fully charge completed system with refrigerant after testing.

Follow ASHRAE 15 procedures for charging and purging of systems and for disposal ofrefrigerant.

N. Install refrigerant piping in accordance with ASME 831,5.

iNSTALLATION - REFRIGERANT SPECIALTIES

Refrigerant Liquid Indicators:

1, Install line size liquid indicators in main liquid line downstream of condenser,

B. Filter-Dryers:

1. Install permanent filter-dryer in systems containing hermetic compressors.

FIELD QUALITY CONTROL

A. Section 01 40 00 - Quality Requirements and 01 70 00 - Execution and CtoseoutRequirements: Field inspecting, testing, adjusting, and balancing.

B. Test refrigeration system in accordance with ASME 831.5.

C. Pressure test refrigeration system with dry nitrogen to 200 psig. Perform final tests at 27inches vacuum and 200 psig using electronic leak detector.

D. Repair leaks.

E. Retest until no leaks are detected.

END OF SECTION


PART

1

,02

"I .03

SECTION 23

HVAC WATER TREATMENT

GENERAL

SUMMARY

A. Section includes:

System cleaner.

Closed system treatment (water)

Test equipment.

B

C,

D,

E.

SUBMITTALS

Section 01 33 00 - Submittal Procedures: Submittal procedures.

Shop Drawings: Indicate system schematic, equipment locations, and controlsschematics, electrical characteristics and connection requirements.

Product Data: Submit chemical treatment materials, chemicals, and equipment includingelectrical characteristics and connection requirements.

Manufacturer's installation Instructions: Submit placement of equipment in systems,piping configuration, and connection requirements.

Manufacturers Field Reports: indicate start-up of treatment systems when completed andoperating properly, indicate analysis of system water after cleaning and after treatment.

CLOSEOUT SUBMITTALS

A. Section 01 70 00 - Execution and Closeout Requirements: Closeout products

1.05 QUALIFICATIONS

Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years experience and with service facilities within 100 miles ofProject with water analysis laboratories and full time service personnel.

installer: Company specializing in performing Work of this section with minimum threeyears experience.

1.06 WARRANTY

Section 01 70 00 = Execution and Closeout Requirements: Product warranties and

product bonds.

Section 23 25 13- HVAC Water Treatment- Page 1

PART 2 PRODUCTS

SYSTEM CLEANER

Product Description: Liquid alkaline compound with emulsifying agents and detergents toremove grease and petroleum products.

Biocide; chlorine release agents including sodium hypochlorite or calcium hypochlorite, ormicrobiocides including quaternary ammonia compounds, tributyl tin oxide, methylene(thiocyanate), or isothiazolones.

2.02 CLOSED SYSTEM TREATMENT (WATER)

Sequestering agent to reduce deposits and adjust

Corrosion inhibitors; boron-nitrite, sodium nitrite and borax, sodium totyltriazole, lowmolecular weight polymers, phosphonates, sodium molybdata, or sulfites,

Conductivity enhancers; phosphates or phosphonates.

PART3

3.01

3.02

EXECUTION

PREPARATION

A Operate, fill, start and vent systems prior to cleaning, Use water meter to record capacityin each system. Place terminal control valves in open position during cleaning,

CLEANING

A. Add cleaner to closed systems at concentration as recommended by manufacturer

& Hot Water Heating Systems: Apply heat while circulating, slowly raising temperature to160 degrees F and maintain for 12 hours minimum. Remove heat and circulate to 100degrees F or less; drain systems as quickly as possible and refill with clean water.Circulate for 6 hours at design temperatures, then drain, Refill with clean water and

repeat until system cleaner is removed.

C. Chilled Water Systems: Circulate for 48 hours, then drain systems as quickly as possible,Refill with clean water, circulate for 24 hours, then drain. Refill with clean water and

repeat until system cleaner is removed.

D, Flush Open Systems for one hour. Drain and re-fill.

E. Use neutralizer agents on recommendation of system cleaner supplier and approval ofArchitecb'Engineer.

F. Flush open systems with clean water for one hour minimum. Drain completely and refill

G, Remove, clean, and replace strainer screens.

H inspect, remove sludge, and flush low points with clean water after cleaning process iscompleted= include disassembly of components as required.

Section 23 25 13 - HVAC Water Treatment - Page 2

3.03 INSTALLATION

A. Install Work in accordance with manufacturer's instructions.

3.04 CLOSED SYSTEM TREATMENT PROGRAM

Introduce closed system treatment through the existing bypass filter/feeders located atthe existing thermal central plant for the hot water system and the chilled water systemwhen required or indicated by test.

Each time system water is drained and refilled as required by the constructionphasing the water shall be tested. Introduce closed system treatment asrequired by the test results.

3.05 DEMONSTRATION

Section 0t 70 O0 Execution and Closeout Requirements: Requirements fordemonstration and training.

Furnish one hour training course for operating personnel, instruction to includeinstallation, care, maintenance, testing, and operation of water treatment systems.Arrange course at start up of systems.

END OF SECTION

Section 23 25 13 - HVAC Water Treatment- Page 3

PART

1,01

1.02

GENERAL

SUMMARY

A.

SECTION233100

HVAC DUCTS

Section Includes:

1. Duct Materials.

2. Insulated flexible ducts.

3. Single wall spiral round ducts,

4. Double wall spiral round duct&

5. Duct Liner=

& Ductwork fabrication,

7= Duct cleaning.

Related Sections:

1. Section 09 90 00 - Painting and Coating: Execution requirements for Weldpriming, weather resistant, paint or coating specified by this section.

2. Section 23 05 29 - Hangers and Supports for HVAC Piping and Equipment:Product requirements for hangers, supports and sleeves for placement by thissection.

3. Section 23 33 00 - Air Duct Accessories: Product requirements for duct

accessories for placement by this section.

REFERENCES

A. ASTM international:

1. ASTM A36;A36M - Standard Specification for Carbon Structural Steel.

2 ASTM Ag0;Ag0M - Standard Test Method for Weight Mass of Coating on Ironand Steel Articles with Zinc or Zinc-Alloy Coatings.

3, ASTM A167 Standard Specification for Stainless and Heat-ResistingChromium-Nickel Steel Plate, Sheet, and Strip.

4 ASTM A568/A568M - Standard Specification for Steel, Sheet, Carbon, and High-Strength, Low-Alloy, Hot-Rolled and Cold-Rolled, General Requirements for,

5 ASTM A853/A853M - Standard Specification for Steel Sheet, Zinc-Coated(Galvanized) or Zinc-Iron Alloy-Coated (Galvannealed) by the Hot-Dip Process.

& ASTM A1008IA1008M = Standard Specification for Steel, Sheet, Cold-Rolled,Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloy with

Section 23 31 00 = HVAC Ducts - Page

1.03

1,04

Improved Formability

7 ASTM A'I011/A1011M - Standard Specification for Steel, Sheet and Strip, Hot-Rolled, Carbon, Structural, High-Strength Low-Alloy and High-Strength Low-Alloywith Improved Formability.

8. ASTM 8209 - Standard Specification for Aluminum and Aluminum-Alloy Sheetand Plate.

9• ASTM C14 - Standard Specification for Concrete Sewer, Storm Drain, andCulvert Pipe.

10, ASTM C443 - Standard Specification for Joints for Circular Concrete Sewer andCulver• Pipe, Using Rubber Gaskets.

11, ASTM E84 - Standard Test Method for Surface Burning Characteristics ofBuilding Materials.

B. National Fire Protection Association;

1 NFPA £0A - Standard for the Installation of Air Conditioning and VentilatingSystems.

2 NFPA 908 - Standard for the Installation of Warm Air Heating and AirConditioning Systems.

3 NFPA 96 - Standard for Ventilation Control and Fire Protection of Commercial

Cooking Operations.

C. Sheet Metal and Air Conditioning Contractors:

t. SMACNA - Fibrous Glass Duct Construction Standards.

2. SMACNA - HVAC Air Duct Leakage Test Manual.

3. SMACNA - HVAC Duct Construction Standard - Metal and Flexible

D. Underwriters Laboratories Inc.:

I, UL 18'• - Factory-Made Air Ducts and Connectors.

PERFORMANCE REQUIREMENTS

A. Variation of duct configuration or sizes other than those of equivalent or lower losscoefficient is not permitted except by written permission. Size round ducts installed inpiece of rectangular ducts in accordance with ASHRAE table of equivalent rectangularand round ducts,

SUBMITTALS

A. Section 01 33 00 - Submittal Procedures: Submittal procedures,

B. Shop Drawings: Submit duct fabrication drawings, drawn to scale not smaller than '•/4inch equals 1 foot, on drawing sheets same size as Contract Documents, indicating:

1. Fabrication, assembly, and installation details, including plans, elevations,

Section 23 3t 00 - HVAC Ducts - Page 2

1.05

.06

1,07

1.08

sections, details of components, and attachments to other work.

2. Duct layout, indicating pressure classifications and sizes in plan view. Forexhaust duct systems, indicate classification of materials hand;ed as defined inthis section.

3. Fittings.

4, Reinforcing details and spacing.

5. Seam and joint construction details.

6, Penetrations through fire rated and other walls.

7. Terminal unit and coil installations.

8. Hangers and supports, including methods for building attachment, vibrationisolation, and duct attachment,

C. Product Data: Submit data for duct materials and connectors,

D Test Reports: Indicate pressure tests performed. Include date, section tested, testpressure, and leakage rate, following SMACNA HVAC Air Duct Leakage Test Manual.

CLOSEOUT SUBMITTALS


B. Project Record Documents: Record actual locations of ducts and duct fittings. Recordchanges in fitting location and type, Show additional fittings used.

QUALITY ASSURANCE

A. Perform Work in accordance with SMACNA - HVAC Duct Construction Standards - Metal

and flexible.

B, Construct ductwork to NFPA 90A standards.

C. Materiels: Flame spread/smoke developed rating of 25/50 or less in accordance withNFPA 255

QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years documented experience.

B. Installer: Company specializing in performing Work of this section with minimum threeyears documented experience.

ENVIRONMENTAL REQUIREMENTS

A, Section 01 60 00 - Product Requirements.

B. Do not install duct sealant when temperatures are less than those recommended bysealant manufacturers.

Section 23 3'• 00 - HVAC Ducts - Page 3

1.09

1.10

C. Maintain temperatures during end after installation of duct sealant.

FIELD MEASUREMENTS


WARRANTY

A. Section 01 70 00 - Execution and Closeout Requirements: Product warranties andproduct bonds.

B. Furnish five year manufacturer warranty for ducts.

PART 2

2.01 METAL

A,

PRODUCTS

DUCT MATERIALS

Galvanized Steel Ducts: ASTM A653;A653M galvanized steel sheet, lock-forming quality,having G60 zinc coating of in conformance with ASTM Ag0/A90M.

S. Steel Ducts: ASTM At008/A1008M, ASTM A101 l/A1011M, and ASTM A568/A568M].

C. Aluminum Ducts: ASTM B209; aluminum sheet, alloy 3003-H14, A•uminum Connectorsand Bar Stock: Alloy 606t-T6 or of equivalent strength.

D. Stainless Steel Ducts: ASTM A167, Type 304.

E. Fasteners: Rivets, bolts, or sheet metal screws.

F, Hanger Rod: ASTM A38/A36M; galvanized; threaded both ends, threaded one end, orcontinuously threaded.

iNSULATED FLEXIBLE DUCTS

A, Product Description: UL 181, Class 1, aluminum laminate and polyester film with latexadhesive supported by helical wound spring steel wire; fiberglass insulation; aluminizedvapor barrier fiim.

t. Pressure Rating: 10 inches wg positive and 1.0 inches wg negative.

2. Maximum Velocity: 4000 fpm.

3. Temperature Range; -20 degrees F to 210 degrees F.

4, Thermal Resistance: 4,2 quare feet-hour-degree F per BTU.

SINGLE WALL SPIRAL ROUND DUCTS

A. Product Description: UL 181, Class 1, round spiral Iockseam duct constructed ofgalvanized steel.

B. Construct duct with the following minimum gages:

Diameter ...........[ 3 inches to 14 inches J 26

2.02

2.03

Section 23 31 00 - HVAC Ducts - Page 4

inches to 28 inches 24.I 28 inches to 36inches I22

[ 52 inches to 84 inches

Construct fittings with the following minimum

Diameter

3 inches to 14 inches

inches to 26 inches

28 inches to 36 inche38 inches to 50 inches

gages

22

52 inches to 60 incfies 18

62 inches to 84 inche• 16

2,04 DOUBLE WALL SPIRAL iNSULATED ROUND DUCTS

Product Description: Machine made from round spiral Iockseam duct with light reinforcingcorrugations, galvanized steel outer wall, 2 inch thick glass fiber insulation, solidgalvanized steel inner wall; fittings manufactured with solid inner wall.

B. Construct round duct with the following minimum gages:

Diameter Gau•3 inches to 14 inches 26

15 inches to 26 inches 24

28 i•ches to 36 in•he• 22

38 inches to 50 inches 20

52 inches to 84 inches 1.8 ....................................

C. Construct round fittings with the following minimum gages:

Diameter3 inches to 14 inches 24

15 inches to 2B inches


22

2O

38 i#•fie• t• 50 inches 20

52 inches to B0 inches 18


2,05 DUCTWORK FABRICATION

Fabricate and support rectangular ducts in accordance with SMACNA HVAC DuctConstruction Standards - Metal and Flexible except that flat drives will not be acceptedas Class A reinforcement, Provide duct material, gages, reinforcing, and sealing for

operating pressures indicated, Seal all transverse and longitudinal seams andconnections with Flex-Grip sealant.

Fabricate and support round ducts with longitudinal seams in accordance with SMACNAHVAC Duct Construction Standards - Metal and Flexible (Round Duct Construction

Standards), and as indicated on Drawings. Provide duct material, gages, reinforcing, andsealing for operating pressures indicated.

C. Construct T's, bends, and elbows with minimum radius 1-1;2 times centerline duct width,


Where not possible and where rectangular elbows are used, provide airfoil turning vanes.

Where acoustical lining is indicated, furnish turning vanes of perforated metal with glassfiber insulation, Do not provide turning vanes in return and exhaust duct bends andelbows.

Increase duct sizes gradually, not exceeding 15 degrees divergence wherever possible;maximum 30 degrees divergence upstream of equipment and 45 degrees convergencedownstream.

Fabricate continuously welded round and oval duct fittings two gages heavier than ductgages indicated in SMACNA Standard. Minimum 4 inch cemented slip joint, brazed orelectric welded. Prime coat welded joints.

Provide standard 45-degree lateral wye takeoffs. When space does not allow 45-degreelateral wye takeoff, use 90-degree conical tee connections,

Provide easements where low pressure ductwork conflicts with piping and structure.Where easements exceed 10 percent duct area, split into two ducts maintaining originalduct area,

H Connect flexible ducts to metal ducts with draw bands,

I. Use die stamped elbows thru 8 inch diameter

Seal all traverse joints, fitting connections, snaplock seams= and any other longitudinalseam with sealing compound and tape, regardless of duct pressure classification,

All ductwork scheduled with static pressures in excess of 3-inch wg shall be leak tested in

accordance with SMACNA HVAC Air Duct Leakage Test Manual with a maximum

leakage rate to meet I.E.C.C. Section 803.3,8. Refer to Section 23 05 93 for duct leaktest data.

1. Refer to Ductwork Pressure Class schedule within this section.

2.05 DUCT LINER

A. Manufacturers:

1. Evonik Foams, Inc, "Solcoustic"

Duct Liner: Polyimide foam duct liner coated with an acrylic polymer on one side.

1. 'K" ('ksi') Value: ASTM C 518, 0.30 at 75•F mean temperature,

a. Thickness: Refer to "Schedules" within this section.

2. Maximum service temperature: 250 degrees F.

3. Maximum moisture absorption: 0.20 percent by volume.

4• Density: 0.8 Ib./cu,ft,

5. Apply liner with coated side at the air stream side.

6. Linings shall meet the requirements of the "Erosion Test Method" described in UL


Pub, No. 181 and" Duct Liner Materials Standard" of TIMA.

7, Greenguard indoor air quality certified for low chemical end particle emission.

Fabricate and install ell duct liner in accordance with SMACNA Installation Standards for

Rectangular Ducts using flexible liner with the following exeptions:

pins or mechanical fasteners shall have beveled or cupped contact edge&

Installed pin length, measured from metal duct surface to underside of pincontact washer, shall equal the thickness of the liner, within a tolerance range ofplus or minus

Apply liner manufacturer's coating and duet butter to all fabrication cuts and

Apply liner manufacturer's coating to repair any tears or damage to the airstraamsurface prior to final installation.

Adhere the liner to the sheet metal with 100 percent coverage of adhesive. Coat allexposed edges and joints.

The liner ahall be additionally secured with mechanical fasteners which ahallcompress the duct liner sufficiently to hold it in place.

Fasteners shall start within 3 inches of the upstream transverse edges of the linerand 3 inches from the longitudinal joints and shall be spaced at a maximum of 6inches on center around the perimeter of the duct, except that there may be amaximum of 6 inches from a corner break. Elsewhere, they shall be a maximumof 16 inches on center, except that they shall be placed not mere than 6 inchesfrom a longitudinal joint of the liner nor 12 inches from a corner break.

For all equipment installations

Install 24 gauge channel nosing on the leading and trailing edge of all rawinsulation.

2. Welded pins affixed at 6 inch intervals parallel to the nosing.

Cut the liner accurately to assure overlapped and compressed longitudinal corner jointsand tightly butted transverse joints.

Fabricate all duct liner with precision machinery. Make only minor, on site manualadjustments to liner,

Provide insulated "build-out" sections to maintain the continuity of the liner whenspecialties, such as dampers and turning vanes, are secured to the sides of the duct,Build-outs shall be secured to the duct with sheet metal fasteners or welds,

Use of a hat section for "build-out" is optional, and its use sha;I be evaluated foreach specialty. Liner shall be adequately protected from damage or erosion, andfriction loss through the section shall be minimized,

Increase duct size over those shown on the drawings where it is scheduled to receive

liner. Sizes on drawings are inside clear dimension.


PART 3

3=01

EXECUTION

EXAMINATION

A, Section 01 30 00 - Administrative Requirements: Coordination and project conditions,

B, Verify sizes of equipment connections before fabricating transitions,

3,02 INSTALLATION

A. Install and seal ducts in accordance with SMACNA HVAC Duct Construction Standards =

Metal and Flexible,

B, During construction, install temporary closures of metal or taped polyethylene on openductwork to prevent construction dust from entering duct'work system.

C. Use crimp joints with or without bead or beaded sleeve couplings for joining round ductsizes 8 inch and smaller with crimp in direction of air flow.

D. Install duct hangers and supports in accordance with Section 23 05 29.

E, Use double nuts and lock washers on threaded rod supports,

F, Connect flexible ducts to metal ducts with draw bands and cover with duct tape.

G, Set plenum doors 6 to 12 inches above floor. Arrange door swing so fan static pressureholds door in closed position.

H, Casings: Install floor mounted casings on 4 inch high concrete curbs. Refer to Section03 30 00. At floor, rivet panels on 8 inch centers to angles, Where floors are acousticallyinsulated, furnish liner of 18 gage galvanized expanded metal mesh supported at 12 inchcenters, turned up 12 inches at sides with sheet metal shields,

! Install in accordance with manufacturer's instructions.

J, Duct Sizes are inside clear dimensions.

K. Locate ducts with sufficient space around equipment to allow normal operating andmaintenance activities,

L. Connect terminal units to supply ducts with two inlet size diameters length of rigid duct.

M, Use a single hanger rod support for round duct in exposed finished areas,

3.03 iNTERFACE WiTH OTHER PRODUCTS

A. Install openings in ductwork where required to accommodate thermometers andcontrollers, Install pitot tube openings for testing of systems. Install pitot tube completewith metal can with spring device or screw to prevent air leakage, Where openings areprovided in insulated ductwork, install insulation material inside metal ring,

B, Connect diffusers or light troffer boots to low pressure ducts directly or with 5 feetmaximum length of flexible duct held in place with strap or clamp,

C Connect air outlets and inlets to supply ducts directly or with five foot maximum length offlexible duct. Do not use flexible duct to change direction.


3.04 CLEANING

A• Section 01 70 00 - Execution and Closeout Requirements: Final cleaning.

Clean duct system and force air at high velocity through duct to remove accumulateddust. To obtain sufficient air flow, clean one half of system completely before proceedingto other half. Protect equipment with potential to be harmed by excessive dirt withtemporary filters, or bypass during cleaning.

3.05 SCHEDULES

A. Ductwork Material Schedule:

AIR SYSTEM MA•ERIA• .......sup#y steelSupply(rectangular) Within 20 feet ef steel (internally Lined)air handler and where noted on

drawings at exposed areas ..............Return and Relief Steel

Return within 20 feet of air handier •{•el 0nter•l!y Line3)Plen• Return Air Gdlle SOOt Stee• 0nternal!y Uned) ......Transfer stee• (•nte•nal•y Lined)General Exhaust Steel

Outside A•r Ste ..........................................................................

Ductwork Pressure Class Schedule:

MR SYSTEM• P-R•SSURE CLASSConstant Volume Supply 2 inch wg regardless of velocity __

Air Volume Supply 2 inch wg regardless Of Velocity.(d0•0•rea• •f VAV •)..............variable Air Volume SuppLy 4 inch wg•stream ofV• _Return; Transfer 8rid Relief 2 inch w•ardle•o•General Exhaust !•c•v•l££•:

3.06 DUCT LEAK TESTING

A Refer to Section 23 05 93 for duct leak test data and work scope specified there

END OF SECTION

Section 23 3"• 00 - HVAC Ducts - Page

PART

.1.0'1

SECTION 23 33 00

AiR DUCT ACCESSORIES

GENERAL

SUMMARY

A, Section includes:

1, Diffuser rake-offs.

2, Terminal unit rake-offs,

3. Dynamic fire dampers.

4. Duct access doors.

5. Volume control dampers.

6. Flexible duct connections,

7. Duct test holes.

B. Related Sections:

1. Section 2331 00 - HVAC Ducts and Casings: Requirements for ductconstruction and pressure classifications.

'1.02 REFERENCES

A. Air Movement and Control Association International, Inc.:

t. AMCA 500 - Test Methods for Louvers, Dampers, and Shutters.

B. ASTM International:

1. ASTM El - Standard Specification for ASTM Thermometers,

C. National Fire Protection Association:

'1. NFPA 90A - Standard for the Installation of Air Conditioning and VentilatingSystems,

D. Sheet Metal and Air Conditioning Contractors:

1, SMACNA - HVAC Duct Construction Standard - Metal and Flexible.

E. Underwriters Laboratories inc.:

'1. UL 555 = Standard for Safety for Fire Dampers.

'1.03 SUBMITTALS

Section 23 33 00 - Air Duct Accessories - Page 1

A. Section 01 33 00 - Submittal Procedures: Submittal procedures.

B. Shop Drawings: Indicate for shop fabricated assemblies including volume controldampers, duct access doors and duct teat holes,

C. Product Data: Submit data for shop fabricated assemblies and hardware used.

D. Product Data: Submit for the following.

1. Fire dampers including locations and ratings.

2. Flexible duct connections.

3. Volume control dampers.

4. Duct access door&

5. Duct test holes.

E, Product Data: For fire dampers submit the following:

1. Include UL ratings, dynamic ratings, leakage, pressure drop and maximumpressure data.

2, Indicate materials, construction, dimensions, and installation details.

3. Damper pressure drop ratings based on tests and procedures performed inaccordance with AMCA 500.

4, Manufacturer's Installation Instructions.


A, Section 01 70 00 - Execution and Closeout Requirements: Closeout procedures,

B, Project Record Documents: Record actual locations of access doors and test holes,

.05 QUALITY ASSURANCE

A, Dampers tested, rated and labeled in accordance with the latest UL requirements.

B. Damper pressure drop ratings based on tests and procedures performed in accordancewith AMCA 500.

.06 QUALIFICATIONS


.07 DELIVERY, STORAGE AND HANDUNG


B. Protect dampers from damage to operating linkages and blades,


C. Delivery: Deliver materials to site in manufacturer's original, unopened containers andpackaging, with labels clearly indicating manufacturer and material

D. Storage: Store materiala in a dry area indoor, protected from damage.

E. Handling: Handle and lift dampers in accordance with manufacturer's instructions, Protectmaterials and finishes during handling and installation to prevent damage.

.08 FIELD MEASUREMENTS


.09 COORDINATION

A, Section 0'l 30 00 - Administrative Requirements: Coordination and project conditions.

B, Coordinate Work where appropriate with building control Work.

1,10 WARRANTY

A. Section 01 70 00 - Execution end CIoseout Requirements: Product warranties andproduct bonds.

B. Furnish five-year manufacturer warranty for duct accessories.

.11 EXTRA MATERIALS

A. Section 01 70 00 - Execution and Closeout Requirements: Spare parts and maintenanceproduct&

Furnish two of each size and type of fusible link.

PART 2

2.01

PRODUCTS

DIFFUSER TAKE-OFFS

A, Manufacturers

1. Flexmaster

Provide 26 gauge galvanized sheet metal take-off fitting. Fitting shall have rectangular toround outlet with butterfly volume damper. Transition from rectangular to round ineccentric configuration. Provide a continuous 3/8" square shaft secured to damper bladewith u-bolt(a). Provide with nylon bushings and Duro Dyne KR-3 locking quadrantProvide with 2-inch build out for insulation. Fitting shall be Flexmaster Model STO withB03 build out or equal.

2.02 TERMINAL UNIT TAKE-OFFS

Take=off from round ductwork:

Provide galvanized sheet metal spiral Iockseam take-off fitting with construction suitablefor the duct pressure class as scheduled in 23 31 00, HVAC Ducts. Fitting shall bedesigned to be low loss and have contoured saddle tap for connection to either a fiat oval


2.03

2.04

or round duct as indicated on the drawings. The fitting outlet shall transition to round duct.Fitting shall be a United McGill Model "SADDLE LO-LOSS TEE TAP" SP(*)PTLS orequal.

C Take-off from rectangular ductwork:

Provide 24 gauge G-90 galvanized sheet metal take-off fitting. Fitting shall haverectangular to round outlet. 4" W.G. construction. Fitting shall be Flexmaster Model STOwithout damper, or equal

DUCT ACCESS DOORS

A. Manufacturers

1. Duro Dyne.

2. Duct Mate.

3. Flexmaster

B. Fabricate in accordance with SMACNA HVAC Duct Construction Standards - Metal and

Flexible, and as indicated on Drawings.

C. Fabrication: Rigid and close fitting of galvanized steel with sealing gaskets and quickfastening locking devices. For insulated ductwork, furnish minimum 1 inch thick insulationwith sheet metal cover.

1. Up to 18 inches Square: Furnish two hinges and two sash locks.

2. Up to 24 x 48 inches: Three hinges and two compression latches.

3. Larger Sizes: Furnish additional hinge.

4. Access panels with sheet metal screw fasteners are not acceptable.

FLEXIBLE DUCT CONNECTIONS

A, Manufacturers

1. Duro Dyne.

2, Ventfabrics.

B. Fabricate in accordance with SMACNA HVAC Duct Construction Standards - Metal and

Flexible, and as indicated on Drawings,

C. Connector: Fabric crimped into metal edging strip.

1 Fabric: UL listed fire-retardant neoprena coated woven glass fiber fabricconforming to NFPA 90A, minimum density 29 oz per sq yd.

2. For connections exposed to sun and weather or wet exhaust ducts provideHypalon coating in lieu of neoprene.

2. Net Fabric Width: Approximately 6 inches wide.


2.05

2.06

2.07

3. Metal: 3 inch wide, 24 gage galvanized steel.

DUCT TEST HOLES

A Permanent Test Ho•es: Factory fabricated, air tight flanged fittings with screw cap.Furnish extended neck fittings to clear insulation.

B. Temporary Test Holes: Cut or drill in ducts as required. Cap with neat patches, neopreneplugs, threaded plugs, or threaded or twist-on metal caps.

DYNAMIC FIRE DAMPERS

A. Fabricate in accordance with NFPA 90A and UL 555.

B. Fire Resistance: 1-'1/2 hours.

C. Dynamic Closure Rating: Dampers classified for dynamic closure to 2000 fpm and 4inches wg static pressure.

D. Construction:

Integral Sleeve Frame: Minimum 20 gage roll formed galvanized steel.Length: 12 inches.

Blades:

a.

b.

C.

Style: Curtain type.Action: Spring or gravity closure upon fusible link release.Material: Minimum 24 gage roll formed, galvanized steel,

3. Closure Springs: Type 301 stainless steel, constant force type, if required.

Fusible Link Release Temperature: "165 degrees F.

Mounting: Vertical or horizontal as indicated on Drawings.

Duct T•ansition Connection, Damper Style:

1. B style - rectangular connection, blades out of air stream, high free area.

2. R style - round connection, blades in air stream, non-sealed

3. LR style - round connection, blades out of air stream, non-sealed.

4. LO style - oval connection, non-sealed,

J. Finish: Mill galvanized.

VOLUME CONTROL DAMPERS

A, Manufacturers

American Warming and Ventilating


PART 3

3.01

Greenheck.

Louvers & Dampers, inc.

Ruskin,

Fabricate in accordance with SMACNA HVAC Duct Construction Standards = Metal and

Flexible, Figures 2-12 and 2-13 and as indicated on Drawings.

Single Blade Dampers: Fabricate for duct sizes up to 12 inch high/depth,

Multi-Blade Damper: Fabricate of opposed blade pattern with maximum blade sizes 8 x72 inch. Assemble center and edge crimped blades in prime coated or galvanized framechannel with suitable hardware,

End Bearings: Furnish end bearings on all dampers. On multiple blade dampers, furnishoil-impregnated nylon or sintered bronze bearings. Furnish closed end bearings on ductshaving pressure classification over 2 inches wg.

Quadrants:

Furnish locking, indicating quadrant regulators on single and multi-bladedampers.

Regulators mounted on externally insulated ducts shall have a 16 gaugeelevated platform at least 1/8 inch higher than the insulation thickness, Dampershaft shall have Ventlok No. 607 bearing mounted on dcutwork within theplatform.

3, Where rod lengths exceed 30 inches furnish regulator at both ends,

Concealed damper regulators:

Provide concealed damper regulators where damper is located above aninaccessible ceiling.

Regulator shall consist of a remote cable control system with ¼" rotary motionflexible steel shaft for control of round and rectangular dampers, Provide withmounting controls, ceiling cup and hardware as required for installation of controlmechanism in gypsum board ceiling.

3. Manufacturers:

a. Young Regulator Co

b. Metropolitan Air Technology

EXECUTION

EXAMINATION

A. Section 01 30 00 - Administrative Requirements: Coordination and project conditions.

B. Verify rated walls are ready for fire damper installation,


3.02

C, Verify ducts and equipment installation are ready for accessories,

D, Check location of air outlets and inlets and make necessary adjustments in position toconform to architectural features, symmetry, and lighting arrangement.

INSTALLATION

Install in accordanc• with NFPA 90A, and follow SMACNA HVAC Duct ConstructionStandards - Metal and Flexible. Refer to Section 23 31 00 for duct construction and

pressure class,

B. Access Doors: Install access doors at the following locations and as indicated onDrawings:

1 Spaced every 50 feet of straight duct.

2, Upstream of each reheat coil.

3 Before and after each duct mounted filter.

4 Before and after each duct mounted coil.

5, Before and after each duct mounted fan.

6, Before and after each automatic control damper

7, Before and after each fire damper.

C, Access Door Sizes: Install minimum 8 x 8 inch size for hand access, 18 x 18 inch size for

shoulder access, and as indicated on Drawings. Install 4 x 4 inch for balancing dampersonly. Review locations prior to fabrication.

D. Install temporary duct test holes where indicated on Drawings and required for testingand balancing purposes. Cut or drill in ducts. Cap w;th neat patches, neoprene plugs,threaded plugs, or threaded or twist-on metal caps.

E Install permanent duct test holes where indicated on Drawings and required for testingand balancing purposes.

F. Install fire dampers at locations as indicated on Drawings, install with required perimetermounting angles, s;eeves, breakaway duct connections, corrosion resistant springs,bearings, bushings and hinges. Install dampers in accordance with manufacturer's ULapproved instructions.

1. Install dampers square and free from racking with blades running horizontally.

2, Do not compress or stretch damper frame into duct or opening.

3 Handle damper using sleeve or frame. Do not lift damper using blades, actuator,or jack shaft.

4, Install bracing for multiple section assemblies to support assembly weight and tohold against system pressure, Install bracing as needed.


Provide flexible cennectians immediately adjacent to equipment in ducts associated withfans and motorized equipment.

Provide balancing dampers at points on supply downstream of air terminal units, return,and exhaust systems where branches are taken from larger ducts as required for airbalancing.

Provide balancing dampers on duct take-off to diffusers, grilles, and registers, regardlessof whether dampers are specified as part of the diffuser, grille, or register assembly.

3.03 DEMONSTRATION

A Section 01 7000 - Execution and Closeout Requirements: Requirements fordemonstration and training.

Demonstrate re-setting of fire dampers to Owner's representative.

END OF SECTION

Section 23 33 00 -Air Duct Accessories- Page 8

PART 1 GENERAL

1.0'1 SUMMARY

,02

SECTION 23 34

HVAC FANS


Centrifugal square inline fans.


4.

5,

6,

REFERENCES

A,

Section 23 05 "13 - Common Motor Requirements for HVAC Equipment: Productrequirements for motors for placement by this section.

Section 23 05 48 - Vibration Controls for HVAC Piping and Equipment: Productrequirements for resilient mountings and snubbers for fans for placement by thissection.

Section 23 07 00 - HVAC Insu}ation: Product requirements for power ventilatorsfor p•acement by this section.

Section 23 09 23 - Direct-Digital Control System for HVAC: Controls remote fromunit

Section 23 31 00 - HVAC Ducts: Product requirements for hangers for placementby this section.

Section 23 33 00 - Air Duct Accessories: Product requirements for duct

accessories for placement by this section,

Section 26 05 03 - Equipment Wiring Connections: Execution and productrequirements for connecting equipment specified by this section.

American Bearing Manufacturers Association:

1. ABMA 9 - Load Ratings and Fatigue Life for Ball Bearings.

2. ABMA t"1 - Load Ratings and Fatigue Life for RoIler Bearings.

Air Movement and Control Association •nternational,

1. AMCA 99 - Standards Handbook.

2. AMCA 204 - Balance Quality and Vibration Levels for Fans.

3. AMCA 210 - Laboratory Methods of Testing Fans for Aerodynamic PerformanceRating.

4. AMCA 300 - Reverberant Room Method for Sound Testing of Fans.

Section 23 34 00 - HVAC Fans - Page t

5. AMCA 301 - Methods for Calculating Fan Sound Ratings from Laboratory TestData,

C. American Refrigeration Institute:

1. ARI 1060 - Air-to-Air Energy Recovery Ventilation Equipment CertificationEquipment Program,

D. National Electrical Manufacturers Association:

1, NEMA MG "I - Motors end Generators.

2, NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum).

E. Underwriters Laboratories Inc.:

1. UL 705 - Power Ventilators.

1.03 SUBMITTALS


B. Shop Drawings: Indicate size and configuration of fan assembly, mountings, weights.ductwork and accessory connections.

C. Product Data: Submit data on each type of fan end include accessories, fan cun/es withspecified operating point plotted, power, RPM, sound power levels for both fan inlet andoutlet at rated capacity, electrical characteristics and connection requirements.

D. Manufacturer's Installation •nstructions: Submit fan manufacturer's instructions.

1,04 CLOSEOUT SUBMITTALS

A. Section 01 70 00 - Execution and Closeout Requirements: Closeout procedures,

8. Operation and Maintenance Data: Submit instructions for lubrication, motor and drivereplacement, spare parts list, and wiring diagrams,

t .05 QUALITY ASSURANCE

A. Performance Ratings: Conform to AMCA 210 and bear AMCA Certified Rating Seal.

B. Sound Ratings: AMCA 301, tested to AMCA 300,and bear AMCA Certified Sound RatingSeal

C. UL Compliance: UL listed and labeled, designed, manufactured, and tested inaccordance with UL 705.

D, Balance Quality: Conform to AMCA 204.

E. Energy Recovery Unit Wheel Energy Transfer Rating: Meet ARI 1060.

1.06 QUALIFICATIONS


Section 23 34 00 - HVAC Fans - Page 2

B. •nstaller: Company specializing in performing Work of this section with minimum threeyears documented experience.

1.07 DEUVERY, STORAGE, AND HANDLING


B. Protect motors, shafts, and bearings from weather and construction dust.

t.08 FIELD MEASUREMENTS


1.0g WARRANTY

A. Section 01 70 00 - Execution and Closeout Requirements: Product warranties andproduct bonds.

1.10 EXTRA MATERIALS

A. Section 01 70 00 - Execution and Closeout Requirements: Spare parts and maintenanceproducts.

Furnish two sets of belts for each fan.

PART 2

2.01

PRODUCTS

CENTRIFUGAL SQUARE INLINE FANS

A. Manufacturers:

1. Greenheck Corp.

2, Loren Cook Company

3. Substitutions: Section 01 60 00 - Product Requirements,

B. Product Description: Direct or v=belt drive as scheduled on the drawings with insulatedgalvanized steel housing integral inlet cone, removable access doors on 3 aides, inletand outlet duct collar, horizontal hanging brackets.

C. Fan Wheel: Backward inclined centrifugal type, aluminum construction.

D. Sheaves: Cast iron or steel, dynamically balanced, bored to fit shafts and keyed; variableand adjustable pitch motor sheaves selected so required rpm is obtained with sheavesset at mid-position; fan shaft with self-aligning pro-lubricated ball bearings.

E. Motor and Drive Mounting: Out of air stream.

F. Motor: Open drip proof.

G. Bearings: ABMA 9 life at 200,000 hours.

H. Accessories:

Section 23 34 00 - HVAC Fana - Page 3

PART 3

3,0•

1. Belt guard.

2. Motor cover,

3. inlet safety screen.

4. Outlet safety screen,

5, Flexible duct connector,

6, Flanged inlet and outlet.

Performance: As Scheduled.

Electrical Characteristics and Components:

1. Electrical Characteristics: in accordance with Section 260503 and as

scheduled,

EXECUTION

EXAMINATION

A. Section 01 30 00 - Administrative Requirements: Coordination and proiect conditions.

3.02 INSTALLATION

A. Install in accordance with manufacturer's instructions.

S. Suspended Fans: Install flexible connections specified in Section 23 33 00 between fanand ductwork. Ensure metal bands of connectors are parallel with minimum one inch flexbetween ductwork and fan while running. Install vibration isolation as specified in Section23 05 48

C. install safety screen where inlet or outlet is exposed,

D. Provide sheaves required for final air balance,

3,03 MANUFACTURER'S FIELD SERVICES

A. Section 01 40 00 - Quality Requirements: Requirements for manufacturer's field services.

3,04 CLEANING

A. Section 0fi 70 00 - Execution and Closeout Requirements: Requirements for cleaning.

3.05

B. Vacuum clean coils and inside of fan cabinet.

DEMONSTRATION

A. Section 01 70 00 Execution and Closeout

demonstration and training.

8.

Requirements: Requirements for

Demonstrate fan operation and maintenance procedures.

Section 23 34 00 - HVAC Fans - Page 4

3.06 PROTECTION OF FINISHED WORK

A. Section 0'• 70 00 - Execution and CIoseout Requirements: Requirements for protectingfinished Work.

B Do not operate fans for until ductwork is clean, filters in place, bearings lubricated, andfan has been test run under observation.

3.07 SCHEDULES - See Drawings

END OF SECTION

Section 23 34 00 - HVAC Fans = Page 5

PART

1,01

1.02

SECTION 23 36 0(}

AiR TERMINAL UNITS

GENERAL

SUMMARY


1. Fan powered terminal units.

2, Single duct terminal units.

B, Related Sections:

1, Section 23 05 13 - Common Motor Requirements for HVAC Equipment: Productrequirements for fan powered terminal units for placement by this section.

2. Section 23 05 48 - Vibration Controls for HVAC Piping and Equipment: Productrequirements for fen powered terminal units for vibration isolation.

3. Section 23 09 23 - Direct-Digital Control System for HVAC: Controls remote fromunit.

4. Section 26 05 03 = Equipment Wiring Connections: Execution requirements forelectrical connections to air terminal units specified by this section.

REFERENCES

A. American Refrigeration Institute:

1. ARI 880 - Air Terminals.

2. ARI 885 -Procedure for Estimating Occupied Space Sound Levels in theApplication of Air Terminals and Air Outlets.

B. National Electrical Manufacturers Association:

1• NEMA 250 - Enclosures for Electrical Equipment (1000 Volts Maximum).

C• National Fire Protection Association:

1= NFPA 90A - Standard for the Installation of Air Conditioning and VentilatingSystems,

D. Underwriters Laboratories Inc.:

2. UL 181 - Factory-Made Air Ducts and Connectors,

E ADC 1062 -Air Distribution and Control Device Code,

1.03 SUBMITTALS

Section 23 36 00 - Air Terminal Units - Page 1

A Section 01 33 00 - Submittal Procedures: Submittal procedures.

Product Data: Submit data indicating configuration, general assembly, and materialsused in fabrication. •nclude catalog performance ratings indicating airflow, static pressure,total pressure, heating coil capacity and NC designation. Include electrical characteristicsand connection requirements. Include schedules •isting discharge and radiated soundpower •evel for each of second through sixth octave bands at inlet static pressures of 1inch to 4 inches wg.

Manufacturer's Installation Instructions: Submit support and hanging detaila, and serviceclearances required.


A. Section 01 70 00 - Execution and Ctoaeeut Requirements: Closeout procedures.

Project Record Documents: Record actual •ocations of units.

Operation and Maintenance Data: Submit manufacturer's descriptive literature, operatinginstructions, maintenance and repair data, and parts •ists. Include directions for resettingconstant volume regulator&

1.05 QUALITY ASSURANCE

Teat and rate air terminal units' performance for air preaaure drop, flow performance, andacouatical performance in accordance with AR• 880 and ARI 885. Attach ARI aeal toeach terminal unit.

1.06 QUALIFICATIONS

Manufacturer: Company specializing in manufacturing products specified in this aectionwith minimum three years experience.

Installer: Company specializing in performing Work of this section with minimum threeyears experience.

1.07 FIELD MEASUREMENTS

A. Verify field measurements prior to fabrication

1•08 COORDINATION

Section 01 30 00 - Administrative Requirementa: Coordination and project conditions.

B. Coordinate Work with Controls Specification,

1.09 WARRANTY

Section 01 70 00 - Execution and Closeout Requirements: Product warranties andproduct bonds.

PART 2 PRODUCTS

2.01 MANUFACTURERS


A. Environmental Technologies,

B. Krueger

C. Metalaire

D. Price

E. Tempmaster

F. Titus

G. Substitutions: Section 01 60 O0 - Product Requirements.

2.02 FAN POWERED VARIABLE VOLUME UNITS

A. Manufactured Units

Fan powered VAV boxes for connection to single duct, central air systems, withDDC controls furnished by the controls contractor.

The controls contractor shall furnish the terminal control unit controller, electric

damper motor, and flow transducer for installation on each terminal unit by theterminal unit manufacturer under Division 23. These devices shall be delivered

to the terminal unit manufacturer's factory in sufficient time for the terminal unitmanufacturer to meet their schedule obligations. The cost of factory mounting,

wiring, enclosure to meet local code and any factory testing and programming ofthe terminal control unit shall be included by the terminal box manufacturer.

The control contractor shall be responsible for installation of spacesensors and communications transmission bus.

The terminal box manufacturer shall provide a flow cross or two (2) pipe

sensor suitable for interfacing with a Microbridge flow transducer.The sheet metal contractor shall provide a minimum of two (2) duct

diameters of straight duct upstream from the terminal box inlet.The sheet metal contractor shall insure all terminal box controllers are

located a minimum of three (3) feet from all obstructions (walls, pipes,etc.) so as to remain accessible.The sheet metal contractor shall provide for dry storage of terminal unitsand mounted termina• box controllers upon receipt at jobsite.

The air flow balancing contractor shall check all terminal units and makeany changes in the air flow parameters to ensure that the terminal boxcontrols perform in accordance with the approved specifications andschedules.

Terminal Equipment Control Units (TEC's) shell be provided for directdigital control of terminals VAV boxes as specified. Units shall be ULListed (UL916 PAZX, 864 UDTZ) and CSA approved.

Identify each airflow unit with clearly marked identification label and airflowindicator. Label shall include unit nominal air flow, maximum factory set air flow,

minimum factory set air flow, and coil type.

Lining Material: Provide lining materials in conformance with NFPA 90A and UL 181


inside surfaces shell have lining material suitable to provide required acousticperformance, thermal insulation, and prevent sweating.

2 Lining thickness shall be not less than 1/2 inch.

Lining shall be secured to supporting surfaces in such a manner that it will notdelaminate, sag or settle.

Casing

Provide casing constructed of zinc-coated steel not lighter than No. 24 M.S,gauge and hemmed, cress broken and reinforced to form a rigid unit.

Casing shall have removable panels large enough to provide access to allmoving parts, for inspection, adjustment, and maintenance without disconnectingducts,

3. Provide cam-latched access door at fan section.

Panels shall be flush, gasketed airtight, and held in place by screwdriveroperated latches or sheet metal screws.

5 Provide duct connection flange at box outlet.

Provide sound attenuator section at plenum inlet.

7 Filter rack with 1" construction filter.

Total leakage from casings shall not exceed 2 percent of the unit's maximumrated capacity when subjected to e pressure of 1/2 inch W.G. inlet staticpressure.

Dampers

Damper Construction: 22 gauge galvanized steel body, 18 gauge galvanizedsteel or aluminum damper blade securely riveted or bolted through a solid shaft,bronze iolite self-lubricating bearings. The dampers shall seat against gasketedstops or the darners shall have gasketed edges. Damper assembly shall be fullyremovable. Leakage rate of closed dampers shall not exceed 2 percent ofunit's scheduled maximum inlet rated airflow at 3 inches W.G. inlet static

pressure

Damper shall include mechanical stops for both full open and full closedpositions, Dampers shall be life cycle tested to at least '•0,000 cycles,

The static pressure loss across the damper at an equivalent 2,000 FPM inletvelocity through the primary air damper shall not exceed 0.20 inch W.G•

Heating Coils

Hot Water Heating Coil: 2 Row, ½ inch copper tube mechanically expanded intoaluminum plate fins, leak tested under water to 200 psig pressure, factoryinstalled. 3;8" or less tubing is not acceptable,


2. Capacity: As scheduled

E Fan and Motor Assembly

¸1. Fan; Forward curved centrifugal type, direct drive. Provide with anti-backwardrotation device to prevent backward rotation at start-up,

2• Isolation: Fan/motor assembly on rubber isolators.

Motor: ECM type, variable-speed dc brushless motors specifically designed foruse with single phase, 277 volt, 60 hertz electrical input. Motor shall be operatedby a single phase integrated contro•ledinverfer that operates the wound statorand senses rotor position to electronically commutate the staten Designed forsynchronous rotation. Rotor shall be permanent magnet type with near zero rotorlosses. Motor shall have built in soft start and soft speed change ramps. Motor

shall be permanently lubricated with ball bearings. Motor shall maintain aminimum of 70 percent efficiency over its entire operating range. Designed toovercome reverse rotation and not affect life expectancy.

G. Controls

Box actuators shall be factory mounted and be DDC. The VAV box controllershall be provided by the DDC manufacturer, shipped to the air terminalmanufacturer, and be factory mounted. The VAV box reheat coil control valveshaII be #rovided by the Controls Contractor. Terminal shall be provided with a•f•t• step-down, Class It control transformer.

"The box manufacturer shall include in his price the cost of mounting DDCsensors, controllers and actuators furnished by the temperature controlscontractor. These controls shall be shipped to the box manufacturer by thetemperature controls contractor and mounted at the factory. The box actuatorshall be electric.

2,02 SINGLE DUCT TERMINAL UNITS

A. Manufactured Units:

Variable air volume or constant volume supply air control terminals forconnection to single duct, central air systems, with DDC control&

The controls contractor shall furnish the terminal control unit controller, electric

damper motor, and flow transducer for installation on each terminal unit by theterminal unit manufacturer under Division 23, These devices shall be delivered

to the terminal unit manufacturer's factory in sufficient time for the terminal unit

manufacturer to meet their schedule obligations. The cost of factory mounting,

wiring, enclosure to meet •ocal code and any factory testing and programming ofthe terminal control unit shall be included by the terminal box manufacturer.

The control contractor shall be responsible for installation of space sensors andcommunications transmission bus,

The terminal box manufacturer shall provide a flow cross or two (2) pipe sensor

suitable for interfacing with e Microbridge flow transducer.


The sheet metal contractor shall provide a minimum of two (2) inlet duct

diameters of straight duct upstream from the terminal box inlet,

The sheet metal contractor shall insure all terminal box controllers are located a

minimum of three (3) feet from all obstructions (walls, pipes, etc,) so as to remainaccessible.

The sheet metal contractor shall provide for dry storage of terminal units andmounted terminal box controllers upon receipt at jobsite,

The air flow balancing contractor shall check all terminal units and make anychanges in the air flow parameters to ensure that the terminal box controlsperform in accordance with the approved specifications and schedules.

Terminal Equipment Control Units (TEC's) shall be provided for direct digitalcontrol of terminals VAV boxes as specified. Units shall be UL Listed (UL916PAZX, 864 UDTZ) and CSA approved.

10. identify each airflow unit with clearly marked identification label and airflowindicator. Label shall include unit nominal air flaw, maximum factory set air flow,minimum factory set air flow, and coil type.

Lining material: Provide lining materials in conformance with NFPA £0A and UL 18t.

Inside surfaces shall have lining material suitable to provide required acousticperformance, thermal insulation, and prevent sweating. In addition, internal liningshall be protected with scrim reinforced aluminum for cleaning.

2 Lining thickness shall be not less than 1 ;2 inch,

Lining shall be secured to supporting surfaces in such a manner that it will notdelaminate, sag or settle.

Casing:

Provide casing constructed of zinc-coated steel not lighter than No. 24 M.S.gauge or aluminum not lighter than 0.04 inch thick, and hemmed, cross brokenand reinforced to form a rigid unit.

Casing shall have removable panels large enough to provide access to allmoving parts, for inspection, adjustment, and maintenance without disconnectingducts,

Panels shall be flush, gasketed airtight, and held in place by screwdriveroperated latches or sheet metal screws.

Total leakage from casings shall not exceed 1 percent of the specified capacitywhen subjected to a pressure of 1/2 inch WG in low pressure section and apressure of 5 inches WG in high pressure section with all outlets and inletssealed off.

Dampers: Provide dampers and other internal devices constructed of materials thatcannot corrode and do not require lubrication or other periodic servicing. Leakage rate ofclosed dampers shall not exceed 5 percent of specified capacity when close-off pressure


PART 3

3.0'1

3.02

differential is 4 inches WG.

Controls:

Box actuators shall be factor,.,, mounted and be DDC. The VAV box controllershall be provided by the DDC manufacturer, shipped to the air terminalmanufacturer, and be factory mounted. The VAV box reheat coil control valveshall be provided by the Controls Contractor. Terminals shall be provided with at•77V/24V step-down, Class II control transformer.

The box manufacturer shall include in his price the cost of mounting DDC

sensors, controllers and actuators furnished by the temperature controlscontractor. These controls shall be shipped to the box manufacturer by the

temperature controls contractor and mounted at the factory, The boxmanufacturer shall also provide and install a control transformer. The boxactuator shall be electric.

Heating coils:

1, Hot Water Heating Coil:

EXECUTION

EXAMINATION

2 Row, 1/2 inch copper tube mechanically expanded into aluminum platefins, leak tested under water to 200 psig pressure, factory installed, 3/8"or less tubing is not acceptable.

Capacity: As Scheduled.


B. Verify ductwork is ready for air terminal installation,

INSTALLATION

B,

C.

D.

Install in accordance with manufacturer's instructions,

Connect to ductwork in accordance with Section 23 31 00.

Install ceiling access doors or locate units above easily removable ceiling components.

Support units individually from structure. Do not support from adjacent ductwork. Providevibration isolators as specified in Section 23 05 48.

Support air terminal units connected by flexible duct independently of flexible duct.

Install transition piece to match flexible duct size to inlet of variable air volume terminal.

Provide a minimum of two (2) inlet ducts diameters of straight sheet metal duct upstreamfrom the terminal box inlet,

Provide a flexible duct connector at the unit discharge for fan powered terminal units.

Section 23 36 00 - Air Terminal Units- Page 7

The sheet metal contractor shall insure all terminal box controllers are located a minimum

of three (3) feet from all obstructions (walls, pipes, etc,) so as to remain accessible.

The sheet metal contractor shall provide for dry storage of terminal units and mountedterminal box controllers upon receipt at jobsite. Once boxes are received at jobsita anduntil final duct connections are made, cover outlet and inlet of boxes to prevent dust from

settling inside of box,

The airflow balancing contractor shall check all terminal units and make any changes inthe airflow parameters to ensure that the terminal box controls perform in accordancewith the approved specifications and schedules,

3.03 ADJUSTING

Section 01 70 00 - Execution and Closeout Requirements: Requirements for starting and

adjusting.

Reset volume with damper operator attached to assembly allowing flow range modulationfrom 100 percent of design flow to scheduled minimum flow rates.

3,04 SCHEDULES

A, See Drawings.

END OF SECTION


PART

1

SECTION 23 37 00

A•R OUTLETS AND iNLETS

GENERAL

SUMMARY

A, Section Includes:

1. Diffusers.

2. Registers

3. Grilles.


1. Section 09 90 00 - Painting and Coating: Execution and product requirements forPainting of ductwork visible behind outlets and inlets specified by this section.

2. Section 23 33 00 - Air Duct Accessories: Volume dampers for inlets and outlets.

1.02 REFERENCES

A. Air Movement and Control Association International, Inc.:

t. AMCA 500 - Test Methods for Louvers, Dampers, and Shutters.

B. American Society of Heating, Refrigerating and Air-Conditioning Engineers:

1. ASHRAE 70 - Method of Testing for Rating the Performance of Air Outlets andIniets.

C. Sheet Metal and Air Conditioning Contractors:

1= SMACNA - HVAC Duct Construction Standard - Metal and Flexible.

1.03 SUBMITTALS


B= Product Data: Submit sizes, finish, and type of mounting. Submit schedule of outlets andinlets showing type, size, location, application, and noise level.

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

D. Submit manufacturer's installation instructions under provisions of Section 01 33 00 -Submittal Procedures.

1.04 CLQSEOUT SUBMITTALS


Section 23 37 00 - Air Outlets and inlets - Page 1

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


A. Test and rate diffuser, register, and grille performance in accordance with ASHRAE 70,

B. Test and rate louver performance in accordance with AMCA 50&

.08 QUALIFICATIONS


.07 WARRANTY

A, Section 01 70 00 - Execution and C•oseout Requirements: Product warranties andproduct bonds.

,08 EXTRA MATERIALS

A. Section 01 70 00 - Execution and Closeout Requirements: Spare parts and maintenanceproducts,

PART 2 PRODLJCT$

2.01 MANUFACTURERS

A. Titus

8. E.H. Price Company

C. Krueger

D. Nailor •ndustries, Inc.

E. Tuttle and Bailey

F. Metalaire

G Cames

H. Nailor

•. Substitutions: Section 0I 60 00 - Product Requirements.

2.02 RECTANGULAR CEILING DIFFUSERS - As Scheduled.

2.03 PERFORATED FACE CEILING DIFFUSERS - As Scheduled,

2,04 CEILING SUPPLY REGISTERS/GRILLES - As Scheduled,

2.05 CEILING EXHAUST AND RETURN REGISTERS/GRILLES - As Scheduled,

2.06 WALL SUPPLY REGISTERS/GRILLES -As Scheduled.

Section 23 37 00 -Air Outlets and Inlets - Page 2

2.07 WALL EXHAUST AND RETURN REGISTERS,•GRILLES - As Scheduled.

PART 3

3.01

EXECUTION

EXAMINATION


B, Verify inlet and outlet locations,

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

3,02 INSTALLATION

A. Install diffusers to ductwork with airtight connection.

B. Install balancing dampers on duct take-off to diffusers, grilles, and registers, whether ornot dampers are furnished as part of diffuser, grille, and register assembly. Refer toSection 23 33 00.

C. Paint visible portion of ductwork behind air outlets and inlets matte black. Refer toSection 09 90 00,

D. Install items in accordance with manufacturer's instructions.

E. •nsulata tops of all supply ceiling diffusers with rain R-6 flexible duct insulation with vaporbarrier.

3,03 INTERFACE WITH OTHER PRODUCTS

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

3.04 SCHEDULES - See Drawings•

END OF SECTION

Section 23 37 00 = Air Outlets and Inlets - Page 3

SECTION 23 40 80

NVAC AiR CLEANING DEVICES

PART "1 GENERAL

1.01 SUMMARY


1, Disposable, extended area panel filters.

2. Disposable penal filters.

3. Filter frames and housings.


'l. Section 23 73 00 - indoor Central Station Air Handling Units

2. Section 23 82 19 - Terminal Heat Transfer Units

1.02 REFERENCES

A. Air=Conditioning and Refrigeration institute:

1. ARI 850 * Commercial and Industrial Air Filter Equipment.

B. American Society of Heating, Refrigerating and Air-Conditioning Engineers:

1. ASHRAE 52.1 - Gravimetric and Dust=Spot Procedures for Testing Air=CleaningDevices Used in General Ventilation for Removing Particulate Matter.

C. Military Standardization Documents:

1= MIL MIL-STD-282 - Filter Units, Protective Clothing, Gas-Mask Components, andRelated Products: Performance=Test Methods.

1.03 PERFORMANCE REQUIREMENTS

A. Conform to ARI 850 Section 7.4.

B. Dust Spot Efficiency: Plus or minus 5 percent.

1.04 SUE•MITTALS


B. Shop Drawings: Indicate filter assembly and filter frames, dimensions, motor locations,and electrical characteristics and connection requirements.

C. Product Data: Submit data on filter media, filter performance data, dimensions, andelectrical characteristics.

Section 23 40 00 - HVAC Air Cleaning Devices - Page 1

PART

D. Manufacturer's Installation Instructions: Submit assembly and change-out procedures.

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


A. Section 01 70 00 = Execution and Closeout Requirements: Closeout procedures.

B, Operation and Maintenance Data: Submit instructions for operation, changing, andperiodic cleaning.

1.06 QUALIFICATIONS


B. Installer: Company specializing in performing Work of this section with minimum threeyears documented experience,

1.07 WARRANTY

A. Section 01 70 00 - Execution and CIoseout Requirements: Product warranties andproduct bonds.

1,08 EXTRA MATERIALS

A. Section 01 70 00 - Execution and Closeout Requirements: Spare parts and maintenanceproduct&

Furnish two sets of filters for each filter bank.

PRODUCTS

DISPOSABLE, EXTENDED AREA PANEL FILTERS

A. Media: UL 900 Class 2, pleated, lofted, non-woven, reinforced cotton and synthetic fabricsupported and bonded to welded wire grid.

1. Frame: Cardboard,

3. Nominal thickness:

a Central Station Air Handling Units - :2 inches.b, Terminal Heat Transfer Units(Fan Coil Units) - 1 inch.

B. Rating, ASHRAE 52,2:

1. MERV &

2. Dust spot efficiency: 30-35 percent,

3. Weight arrestance: >90 percent.

4. Initial resistance at 500 fpm face velocity: 0.28 inch,

5, Recommended final resistance: 0.9 inch wg.


Acceptable Manufacturers:

1, American Air Filter,

2, Cambridge.

3, Continental.

4. Farr.

2.03 FILTER FRAMES AND HOUSINGS

General: Fabricate filter frames and supporting structures of [16 gage] galvanized steel orextruded aluminum T-section construction with necessary gaskets between frames andwalls.

Standard Sizes: For interchange ability of filter media of other manufacturers; for panelfilters, size for 24 x 24 inches filter media, minimum 2 inches thick; for extended surfaceand high efficiency particulate air filters, provide for upstream mounting of panel filters.

Side Servicing Housings: Flanged for insertion into ductwork, of reinforced 16 gagegalvanized steel; access doors with continuous gaskets and positive locking devices onboth sides; extruded aluminum tracks or channels for primary [and secondary] [,secondary and tertiary] filters with positive sealing gaskets.

D. Filter housing shall be provided with air handling equipment,

PART3 EXECUTION

3.01 INSTALLATION

A Install air cleaning devices in accordance with manufacturer's instructions

Install filters with felt, rubber, or neoprene gaskets to prevent passage of unfiltered airaround filters.

Provide temporary filters for system start-up, install filter media over all return air ductopenings when fans are operated during construction activities. Do not operate fansystem until temporary or permanent filters are in place. Replace temporary filters usedduring construction and testing, with clean set.

3.02 SCHEDULES - Refer to Equipment Schedules.

END OFSECTION


SECTION 23 73 00

iNDOOR CENTRAL STATION AiR HANDLING UNITS

PART t GENERAL

1,01 SUMMARY

1.02

Section includes modular factory fabricated air-handling units and accessories=

Related Sections:

3,

4,

5.

7•

REFERENCES

A.

Section 033000 - Cast-in-Place Concrete: Execution requirements forhousekeeping pads specified by this section=

Section 23 05 13 - Common Motor Requirements for HVAC Equipment: Productrequirements for electric motors for placement by this section,

Section 23 05 48 - Vibration Controls for HVAC Piping and Equipment: Productrequirements for vibration isolators for placement by this section.

Section 23 07 00 - HVAC insulation: Product requirements for insulation forplacement by this section.

Section 23 09 23 - Direct-Digital Control System far HVAC: Controls remote fromunit.

Section 23 2• t3 - Hydronic Piping: Product requirements for chilled water andhot water piping connections to air handling units.

Section 2321 16 - Hydronic Piping Specialties: Product requirements forhydronic piping specialties for placement by this section.

Section 23 33 00 - Air Duct Accessories: Product requirements for flexible duct

connections for placement by this section.

Section 26 05 03 - Equipment Wiring Connections: Execution requirements forelectric connections specified by this section.

Section 26 29 23 = Variable=Frequency Motor Controllers: Variable frequencycontrollers.

American Bearing Manufacturers Association:

t. ABMA 9 - Load Ratings and Fatigue Life for Ball Bearings.

2. ABMA 11 - Load Ratings and Fatigue Life for Roller Bearings.

Air Movement and Control Association International, Inc.:

'I. AMCA 99 = Standards Handbook.

2. AMCA 210 - Laboratory Methods of Testing Fans for Aerodynamic Performance

Section 23 73 00 - Indoor Central Station Air Handling Units - Page 'l

"1.03

2.

SUBMITTALS

A.

B

Rating.

3. AMCA 300 - Reverberant Room Method for Sound Testing of Fans.

4. AMCA 301 - Methods for Calculating Fan Sound Ratings from Laboratory TestData,

5. AMCA 500 - Test Methods for Louvers, Dampers, and Shutters.

Air-Conditioning and Refrigeration Institute:

1. ARI 410 - Forced-Circulation Air-Cooling and Air-Heating Coils.

2. ARI 430 - Central-Station Air-Handling Units,

3. ARI 810 - Central System Humidifiers for Residential Applications.

4. ARI Guideline D - Application and Installation of Central Station Air-HandlingUnits.

National Electrical Manufacturers Association:

1. NEMA MG 1 - Motors and Generators.

Sheet Metal and Air Conditioning Contractors:

1. SMACNA - HVAC Duct Construction Standard - Metal and Flexible,

Underwriters Laboratories •nc.:

UL 900 - Air Filter Units,

UL - Fire Resistance Directory.

Section 01 33 00 - Submittal Procedures: Submittal procedures.

Shop Drawings: Indicate assembly, unit dimensions, weight •oading, required clearances,construction details, field connection details, and electrical characteristics and connectionrequirements,

Product Data, Submit the following:

I Published Literature: Indicate capacities, ratings, gages and finishes of materials,and electrical characteristics and connection requirements.

2. Filters: Data for filter media, filter performance data, filter assembly, and filterframes.

3. Fans: Performance and fan curves with specified operating point plotted, power,RPM

4. Sound Power Level Data: Fan outlet and casing radiation at rated capacity

5, Dampers: Include leakage, pressure drop, and sample calibration curves,

Sect on 23 73 00 - Indoor Centrai Station A!r Hand!ing Units - Page 2

indicate materials, construction, dimensions, and installation details,

6. Electrical Requirements: Power supply wiring including wiring diagrams forinterlock and control wiring, Indicate factory installed and field installed wiring.

D. Manufacturer's Installation Instructions: Submit.

t.04 CLOSEOUT SUBMITTALS

A. Section 01 70 00 - Execution and CIoseout Requirements: Closeout procedures.

B. Operation and Maintenance Data: Submit instructions for lubrication, filter replacement,motor and drive replacement, spare parts lists, and wiring diagrams.

1.05 QUALITY ASSURANCE

A• Outside Air Damper Leakage: Test in accordance with AMCA 500.

B. Maintain one copy of each document on site.

1.06 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products spedfied in this sectionwith minimum three years experience.

B. •nataller: Company specializing in performing Work of this section with minimum threeyears experience.

t.07 DELIVERY, STORAGE, AND HANDLING


B. Accept units and components on site in factory protective containers, with factoryshipping skids and lifting lugs. Inspect for damage.

C. Protect units from weather and construction traffic by storing in dry, roofed location.

1.08 WARRANTY

A, Section 01 70 00 - Execution and Closeout Requirements: Product warranties and

product bonds.

t.09 EXTRA MATERIALS

A. Section 01 70 00 - Execution and Closeout Requirements: Spare parts and maintenance

products.

B. Furnish one set filters for each unit.

1.10 PHYSICAL SIZE OF EQUIPMENT:

Space is critical; therefore, equipment of larger sizes than shown, even though ofapproved manufacturer, will not be acceptable unless it can be demonstrated that amplespace exists for proper installation, operation, and maintenance.

Section 23 73 O0 - Indoor Central Station Air Handling Units - Page 3

2.02

PRODUCTS

GENERAL

A= Air Handling Unit sha;l be factory fabricated by the manufacturer indicated, complete withell appurtenances necessary for satisfactory operation= with physical dimensions suitableto fit the allocated space, of materials which comply with NFPA 90A.

ACCEPTABLE MANUFACTURERS

A, McQuay

B, Carrier

C. Trane

D, York

E. Substitutions: Section 01 60 00 - Product Requirements,

2.03 CASING

Channel base of welded steel. Assemble sections with gaskets and bolts. Provide withfull length structural steel base with cross members,

Outside Casing:

1. Galvanized Steel: Minimum 18 gage.

C Inside Casing:

1. Galvanized Steel: Minimum 20 gage,

D, Floor: Steel outer panel, three (3) inches of insulation and galvanized steel inner panel

1. Galvanized Steel: Minimum 20 gage.

E Insulation: Insulate entire casing with glass fiber insulation or urethane insulation.

1 Insulation thickness shall as required to achieve R-8 value equivalent. Theinsulation shall have an effective thermal conductivity (C) of .24 (BTU in./sq.ft. F°)Insulation shall meet the erosion requirements of UL 181 facing the air streamand fire hazard classification of 25/50 (per ASTM-84 and UL 723 and CAN/ULC$102-M88). All insulation edges shall be encapsulated within the panel,

2 Seal and secure all edges and penetrations of the insulation with a coating toprevent erosion and transmission of moisture.

F. Finish: Manufacturer's standard paint on exterior.

G. Access Doors: Double wall, galvanized steel insulated sandwich construction, for flushmounting, with hinges, gasket, latch, and handle assemblies.

1. Provide at both sides of filter, fan, and coi• access sections.

Section 23 73 00 - indoor Central Station Air Handling Units - Page 4

Drain Pans: ASHRAE 62n IAQ compliant; double wall with rigid insulation betweenlayers with welded corners. Inner pan shall be Type 316 stainless steel. Double crossbreak and pitch to drain connection. Furnish drain pans under cooling coil section.

Strength: Furnish structure to brace casings for auction pressure of 4 inch wg, withmaximum deflection of 1 in 200.

2.04 FAN SECTION

2.05 COILS

Provide with direct driven plenum fan constructed per AMCA requirements for the dutyspecified. The fan shall be selected to operate at a system total static pressure that doesnot exceed 90% of the specified fan's peak static pressure producing capability at thespecified fan/motor speed. Each fan/motor shall include galvanized steel intake wall,spun steel inlet funnel, and an galvanized steel motor support plate and structure. Thefan intake wall, inlet funnel, and motor support structure shall be powder coated forsuperior corrosion resistance. All motors shall be high efficiency pedestal mounted type,ODP, T-frame motors. All motors shall include isolated bearings or shaft grounding. Thefan/motor shall be dynamically balanced to meet AMCA standard 204-98, category BV-5,to meet or exceed Grade 2.5 residual unbalance.

8. Motors

Refer to section 23 05 13 for motor requirements specified there•

Motors shall be 1800 rpm or 3500 rpm (900 rpm and 1200 rpm motors are notacceptable), ODF (for indoor application).

A. Certify capacities, pressure drops, and selection procedures in accordance with AR1410.

Casing with access to both sides of coils. Enclose coils with headers and return bendsfully contained within casing. Slide coils into casing through removable end panel withblank off sheets and sealing collars at connection penetrations.

Drain Pans: 24 inch downstream of coil and down spouts for cooling coil banks more than

one coil high.

Coil frames shall not be part of the unit structural frame and shall be independentlyremovable without affecting the structural integrity of the unit. Provide Type 304Lstainless steel stacking rack for stacked coils. Stacked coils shall have stainless stee;intermediate drain pans with copper downspouts extended to main drain pan

E Chilled Water Cooling Coils:

Shall be non-ferrous, extended surface type with aluminum plate finsmechanically bonded to tubes without flow turbulators. Provide full fin collars foraccurate spacing and maximum fin-tube contact unless noted otherwise.

Headers: Seamless extra heavy Type K copper header, silver brazed to tubes.

They shall be completely drainable, with threaded plugs for drain and vent', airvent connection at the high point and drain connection at the low point extended

through the unit casing.

3. Casing shall be constructed from minimum 20 gauge Type 304L stainless steel

Section 23 73 00 - Indoor Central Station Air Handling Units - Page 5

with intermediate tube sheets 48 inches on center maximum. Construct casing

channels to prevent air bypass around fins and water carryover into air stream,

Tubes shall be 5/8 or 1/2 inch O,D,, arranged in a counter flow pattern withrespect to air flow unless noted otherwise, Minimum wall thickness shall be &035inches for 518" tubes and 0,022 inches for ½ inch tubes. Minimum fin thickness

shall be 0,01 inches.

5 Fouling factor of &00025,

6 Designed for 200 psig working pressure and 200 degrees

F, Hot Water Heating Coils:

Shall be nomferrous, extended surface type with aluminum plate fins mechanicallybonded to tubes without flow turbulators. Provide full fin collars for accurate

spacing and maximum fin4ube contact unless noted otherwise. Fin spacing shallbe a maximum of 10 fins per inch.

Headers: Seamless extra heavy Type K copper header, silver brazed to tubes.They shall be completely drainable, with threaded plugs for drain and vent;threaded plugs in return bends and in headers opposite each tube,

Casing shall be constructed from minimum 20 gauge Type 304L stainless steelwith intermediate tube sheets 48 inches on center maximum. Construct casing

channels to prevent air bypass around fins.

Tubes shall be 5;8 or 1/2 inch O.D., arranged in a counter flow pattern withrespect to air flow unless noted otherwise, Minimum wall thickness shall be 0,035inches for 5/8" tubes and 0.022 inches for ½ inch tubes. Minimum fin thickness

shall be 0.01 inches.

5. Fouling factor of 0.00025.

6. Designed for 200 psig working pressure and 200 degrees F.

2,06 FILTER/MIXING BOX DAMPER SECTION WITH OUTSIDE AIR FLOW MONITORING STATION

Outside Air Flow Monitoring Station: Shall include an integral outside air control damper,stationary airflow sensing device and an air straightening section and shall be mounted inthe filter/mixing box section of the unit. •t shall be tested to AMCA Std, 611-95 and bearthe AMCA Rating Seal for Airflow Measurement Performance. It shall include:

Pressure sensing potl:s built into the sensing device.

The capability of measuring outside air flow through out the full range of theoutside air damper down to t5 percent of total unit scheduled supply air flow.

3. Factory mounted control with:

Low pressure transducers with 0-10Vdc output signal for air flowmonitoring by the Energy Management Control System (EMCS).

b. 24 VAC power supply wired into the supply voltage of the transducer.

Outside air and Return Air Control Dampers: Low leakage control damper with leakage


2.07

rates complying with ASHRAE 90.1-1999, provide submittal data on a CFM/sq-ft at t inchW,G. basis.

Damper actuator shall be as specified in Section 23 09 23, Direct Digital ControlSystem.

Filter Section: Filters as specified in Section 23 40 00, HVAC Air Cleaning Devices.

ACCESS SECTIONS

A. Provide where indicated on Drawings.

B. Provide access door in each access eection at both sides of unit.

2.08 CAPACITY

A, As Scheduled,

2.09 ELECTRICAL CHARACTERISTICS AND COMPONENTS

A. Electrical Characteristics: in accordance with Section 26 05 03 and the following:

1, As Scheduled.

2.10 SCHEDULE

A. Refer to drawings.

PART 3

3,01

3.03

E?CUT•ON

•NSTALLATtON

A. •nstall in accordance with manufacturer'e instructions.

B, Install in accordance with AR1430.

C, Install flexible connections between unit and inlet and discharge ductwork if unit is not

internally isolated. Install metal bands of connectors parallel with minimum 2 inch flexbetween ductwork and fan while running. Refer to Section 23 33 00.

D. Install floor mounted units on concrete housekeeping pad as indicated on the drawings,Refer to Section 03 30 00.

E. Insulate coil headers located outside airflow as specified for piping. Refer to Section23 07 00.

F Install condensate piping with trap and route from drain pan to location shown on plans,Refer to Section 23 2I 13,

INSTALLATION CHILLED WATER AND HOT WATER CO•L

A. Install with required clearances for coil tube pull and access.


B. Make connections to coils with unions or flanges,

C. Connect water supply to leaving airside of coil (counter flow arrangement).

D. Locate water supply at bottom of supply hastier and return water connection at top.

E Install water coils to allow draining and install drain connection at low points.

F. tnstsll valves and piping specialties in accordance with details as indicated on Drawings.

G. Install manual sir vents at high points complete with shutoff valve. Refer to Section2321 13,

3.04 CLEANING

A. Section 01 70 00 - Execution and Closeout Requirements: Requirements for cleaning,

B. Vacuum clean coils and inside of unit cabinet.

C. Install temporary filters during construction period. Replace with permanent filters atSubstantial Completion.

3,05 PROTECTION OF FINISHED WORK

A. Section 01 70 O0 - Execution and Closeout Requirements: Requirements for protectingfinished Work.

B. Do not operate units until ductwork is clean, filters are in place, bearings lubricated, andfan has been test run under observation,

3.06 SCHEDULES

A. See Drawings.

END OF SECTION

Section 23 ?'3 00 - Indoor Central Station Air Handling Units - Page 8

SECTION 23 81 26

DUCTLESS SPLIT-SYSTEM AiR CONDiTiONERS

PART

1

1.02

1.03

GENERAL

SUMMARY


1. Ductless Mini=split systems.

S. Related Sections:

1, Section 23 09 00 - Direct-Digital Control System for HVAC: Controls remote fromunit.

2, Section 23 23 00 - Refrigerant Piping: Execution requirements for connection torefrigerant piping specified by this section.

Section 26 05 03 - Equipment Wiring Connections: Electrical connection to units.

REFERENCES

A. Air-Conditioning and Refrigeration institute:

1. ARI 210/240 - Unitary Air-Conditioning and Air-Source Heat Pump Equipment.

2. ARI 270 - Sound Rating of Outdoor Unitary Equipment.

3. ARI 3401360 Commercial and Industrial Unitary Air=Conditioning and HeatPump Equipment.

4. ARI 365 Commercial and Industrial Unitary AiFCondition[ng Condensing Units.

American Society of Heating, Refrigerating and Air-Conditioning Engineers:

1. ASHRAE 52.1 = Gravimetric and Dust=Spot Procedures for Testing Air-CleaningDevices Used in General Ventilation for Removing Particulate Matter.

2, ASHRAE 90.t - Energy Standard for Buildings Except Low-Rise ResidentialBuildings=

National Electrical Manufacturers Association:

1. NEMA MG 1 - Motors and Generators.

National Fire Protection Association:

1. NFPA 90A = Standard for the Installation of Air Conditioning and Ventilating

Systems.

SUBMITTALS

A. Section 01 33 00 = Submittal Procedures: Submittal procedures,

Section 23 81 26 - Ductless Split-System Air Conditioners - Page 1

Product Data: Submit data indicating:

I, Cooling capacities,

2, Dimensions.

3. Weights.

4.

5.

Rough-in connections and connection requirements,

Electrical requirements with electrical characteristics and connectionrequirements.

6. Controls.

7. Accessories.

C. Refrigerant piping shop drawings: Refer to Section 23 23 00 for requirements specifiedthere.

D, Manufacturer's Installation Instructions: Submit assembly, suppo• details, connectionrequirements, and include start-up instructions.



B. Project Record Documents: Record actual •ocations of controls installed remotely fromunits,

C. Operation and Maintenance Data: Submit manufacturer's descriptive literature, operatinginstructions, installation instructions, and maintenance and repair data.


A. Cooling Capacity: Rate in accordance with AR1210/240.

B. Sound Rating: Measure in accordance with ARI 270.

C. Insulation and adhesives: Meet requirements of NFPA g0A.

.06 QUALIFICATIONS

A. Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years experience.

B. Installer: Company specializing in performing Work of this section with minimum threeyears experience.

.07 DEUVERY, STORAGE, AND HANDLING

A. Section 01 60 00 - Product Requirements: Requirements for transporting, handling,storing, and protecting products.

B. Accept units and components on site in factory protective containers, with factory


shipping skids and lifting lugs. inspect for damage,

C. Comply with manufacturer's installation instruction for rigging, unloading and transportingunits.

D. Protect units from weather and construction traffic by storing in dry, roofed location.

1.08 COORDINATION

A. Section 01 30 00 - Administrative Requirements: Requirements for coordination.

B, Coordinate installation of condensing units with concrete pad.

C. Coordinate installation of air handling units with building structure.

1.09 WARRANTY

A. Section 01 70 00 - Execution and Closeout Requirements: Requirements for warranties,

B. Furnish five year manufacturers warranty for compressors.

1.10 MAINTENANCE MATERIALS

A. Section 01 70 00 Execution and Closeout Requirements: Requirements formaintenance materials,

B. Furnish two sets of filters for each unit.

PART 2 PRODUCTS

2,01 DUCTLESS MINI-SPLIT SYSTEMS

A. Fan Coil Unit

I. Manufacturers:

a, Mitsubishi

b, Substitutions: Under provisions of Section 0t 60 00,

Units: Self-contained, packaged, factory assembled, pre-wired unit consisting ofcabinet, supply fan, DX cooling coil, air filter, wired for single power connectionwith control transformer.

a. Electric Refrigeration: Refrigerant cooling coil and outdoor packagecontaining compressor, condenser coil and condenser fan.

b, Provide drain pan overflow switch interlocked to de-energize unit uponsensing an overflow condition.

Supply Fan: Line flow fan with multi-speed direct drive motor

Performance:

a, Ratings: Energy Efficiency Rating (EER) not less than requirements of


ASH RAE 90A; seasonal efficiency to ASHRAE 103,

b Refer to Schedules on Drawings.

Condensing Unit

1. Manufacturers:

a. Mitsubishi

b. Substitutions: Under provisions of Section 01 60 00.

2 Construction and Ratings: In accordance with ARI 210/240. Testing: ASHRAE14.

3 Compressor: Energy efficient hermetic scroll compressor with inverter, resiliently

mounted integral with condenser,

4. Air Cooled Condenser: Aluminum fin and copper tube coil, with direct drive axial

propeller fan, and fan & condenser coil guard.

5, Provide with low ambient head pressure control

6. Electrical Characteristics: As Scheduled

7. Operating controls: Provide with wired programmable thermostat controller withauxiliary contacts to allow enabling end disabling by the Building Automation

System,

PART 3

3,01

3.02

3.03

EXECUTION

EXAMINATION

A, Section 0I 30 00 - Administrative Requirements; Verification of existing conditions beforestarting work.

B, Verify that proper power supply is available for equipment.

INSTALLATION - MINI-SPLIT SYSTEM


B. Install connection to electrical power wiring in accordance with Section 26 05 03.

CLEANING

A, Section 01 70 00 - Execution and Closeout Requirements: Requirements for cleaning.

B, Vacuum clean coils and inside of unit cabinet.

C. Install temporary filters during construction period. Replace with permanent filters atSubstantial Completion,


3,04 DEMONSTRATION

A. Section 01 7000 Execution and Closeout Requirements: Requirements fordemonstration and training,

8. Demonstrate equipment operation and maintenance.

3,05 PROTECTION OF FINISHED WORK

A, Section 0"1 70 00 - Execution and C•oseout Requirements: Requirements for protectingfinished Work,

3.06 SCHEDULES - See Drawings.

END OF SECTION

Section 23 81 26 - Ductless Sp•it=System Air Conditioners - Page 5

SECTION 23 82 19

TERMINAL HEAT TRANSFER UNITS

PART

1.01

1 02

GENERAL

SUMMARY


1, Fan Coil Units,

& Related Sections:

1. Section 23 05 13 - Common Motor Requirements for HVAC Equipment.

2. Section 26 05 03 = Equipment Wiring Connections: Execution requirements forelectrical connections to air terminal units specified by this section.

REFERENCES

A. National Electrical Manufacturers Association:

1. NEMA 250 = Enclosures for Electrical Equipment (1000 Volts Maximum).

National Fire Protection Association:

I. NFPA 90A = Standard for the Installation of Air Conditioning and Ventilating

Systems.

1.03 SUBMITTALS

A, Section 01 33 O0 - Submittal Procedures,

Product Data: Submit data indicating configuration, general assembly, and materialsused in fabrication, include fan performance curves, fan sound power rating, certified coilperformance ratings, motor ratings, electrical characteristics and motor and fanaccessories.

Manufacturer's Insfal[ation Instructions: Submit support and hanging details, and service

clearances required.


A. Section 01 70 00 = Execution and Ctoseout Requirements: Closeout procedures.

Project Record Documents: Record actual locations of units.

Operation and Maintenance Data: Submit manufacturer's descriptive literature, operatinginstructions, maintenance and repair data, and parts •ists. Include directions for resettingconstant volume regulators.

1.05 QUALIFICATIONS

Section 23 82 19 -Terminal Heat Transfer Units- Page 1

A• Manufacturer: Company specializing in manufacturing products specified in this sectionwith minimum three years experience•

B. •nsta•ler: Company specializing in performing Work of this section with minimum threeyears experience.

.06 FIELD MEASUREMENTS

A. Verify field measurements prier to fabrication,

.07 COORDINATION

A• Section 01 30 00 - Administrative Requirements: Coordination and project conditions,

B Coordinate Work with Controls Specification.

C. Coordinate size and location of structural steal suppor• members.

.08 WARRANTY

A. Section 01 70 00 = Execution and C•oseout Requirements: Product warranties andproduct bonds.

.09 EXTRA MATERIALS

A. Furnish extra materials described below that match products installed and that arepackaged with protective covering for storage and identified with labels describingcontents.

t. Filters: Two sets for each fan coil unit,

PART 2

201

PRODUCTS

FAN=COIL UNITS

A. Manufacturer: MagicAire,.

B. Other acceptable manufacturers offering equivalent products.

1, Envirotec

2. International.

2. Substitutions: Section 01 60 00 - Product Requirements.

C. Manufactured Units

1. Fan coil units shall be factory assembled and consist of fans, motor and driveassembly, coils, filters, condensate pans and accessories=

D. Cabinet

Section 23 82 t9 - Terminal Heat Transfer Units - Page 2

1. Construction: Fabricated of LFQ (min) steel, External parts shalf be polyurethanebased powder coated A60 galvanealed and internal pa•ts shall be G90galvanized eteel.

2. Cabinet insulation: Comply with NFPA g0A or NFPA gOB.

a. Materials: Fiber glass insulation,b. Thickness: 3/4 inch.

c. Density: '• .5 pounds per cubic foot.d. Thermal Conductivity (k-Value): 0.26 at 75 degrees F mean temperature.e. Fire-Hazard Classification: Maximum flame-spread index of 25 and

smoke-developed index of 50, when tested according to ASTM C 411.

3. Access Panels: Hinged bottom access pane[

4, Condensate Drain Pans: Polycarbonate or galvanized steel,

5, Stamped steel discharge and return air grilles

Fan Section

1 Fan-Section Construction: Direct-driven centrifugal fans,

3 Fan Assemblies: Statically and dynamically balanced and designed forcontinuous operation at maximum rated fan speed and motor horsepower,

4 Forward-Curved Fan Wheels: Galvanized-steel and;or aluminum,•painted steelconstruction,

Motors

1.

Coils

Genera1: Comply with requirements in Section 23 05 13. Matched with fan load.

Water Coils: Fabricated according to ARI 410

f.

g.

Filter Section

Piping Connections: SweatTubes: CopperFins: Aluminum

Fin and Tube Joint: Mechanical bond

Headers: Seamless copper tube with brazed joints

Ratings: Design tested and rated according to ARI 41Source Quality Control: Test to 500 psig underwater

Filters: Comply with NFPA 90A.

Filter Section: Provide filter holding frames for 1 inch thick filters.

Disposable Panel Filters: As specified in section 23 40 00.

! Control: Reference control drawings,

Section 23 82 19 - Terminal Heat Transfer Units - Page 3

PART 3

3=01

302

3.03

EXECUTION

EXAMI NATION

A Section 01 30 00 - Administrative Requirements: Coordination and project conditions.

E. Examine areas and conditions for compliance with requirements for installationtolerances and other conditions affecting performance.

C, Examine roughing-in of hydronic and condensate drainage p•ping systems and electricalservices to verify actual locations of connections before installation.

D, Proceed with installation only after unsatisfactory conditions have been corrected.

iNSTALLATION


B. Install equipment exposed to finished areas after wails and ceiling are finished andpainted. Avoid damage,

C. Protection: Provide finished cabinet units with protective covers during balance ofconstruction,

D. Fan-Coil Units: Install as indicated. Suspend units from structural steel support frame

using threaded steel rods and spring vibrator isolation hangers.

E Units with Cooling Coils: Connect drain pan to condensate drain,

F Arrange installation of all units to provide access space around units for service andmaintenance and to ensure that all access panels are unobstructed.

CONNECTIONS

A. Piping installation requirements are specified in other Division 23 Sections. Drawingsindicate general arrangement of piping, fittings and specialties,

B. Install piping adjacent to machine to allow service and maintenance.

C, Connect condensate drain pans, to drainage piping. Extend to nearest equipment or floordrain. Construct deep trap at connection to drain pan and install cleanouts at changes indirection.

D, Electrical: Comply with applicable requirements in Division 26 Sections for power wiring,switches and motor controls,

E Ground equipment according to Division 26 Section "Grounding and 8onding."

F, Tighten electrical connectors and terminals according to manufacturer's publishedtorque=tightening values, if manufacturer's torque values are not indicated, use thosespecified in UL 488A and UL 486B.

Section 23 82 19 - Termina! Heat Transfer Uo!ts - Page 4

3.05 STARTUP

A, Final Checks before Star,up: Perform the following:

1. Verify that unit is secure on mountings and supporting devices and thatconnectioas to piping and electrical systems are complete. Verify that properthermal-overload protection is installed in motors, starters and disconnectswitches.

2. Perform cleaning and adjusting specified in this Section.

3. Comb coil fins for parallel orientation.

4. install clean filters.

B. Starting procedures for fan coil units include the following:

1. Energize motor; verify proper operation of motor, drive system, and fan wheel.

2. Measure and record motor electrical values for voltage and amperage.

C. Refer to Section 23 05 93 - Testing, Adjusting and Balancing for system testing,adjusting and balancing.

3.06 CLEANING

A. After construction is completed, including painting, clean exposed surfaces of units.

B, Clean fan coil units internally, on completion of installation, according to manufacturer'swriften instructions. Clean fan interiors to remove foreign material and construction dirtand dust. Vacuum clean fan wheels, cabinets, and coils entering air face.

C. After completing system installation and testing, adjusting, and balancing fan coil and air-distribution system, clean filter housings and install new filters.

D. Touch-up marred or scratched surfaces of factory-finished cabinets, using finish materialsfurnished by manufacturer.

3.07 SCHEDULES

A. See Drawings.

END OF SECTION

Section 23 82 19 - Terminal Heat Transfer Units - Page 5