36C25219B0037-018.pdf

Construction Documents Volume 2 of 2 -MEP Project Specifications

EDWARD HINES, JR. VA HOSPITAL

CANOPY/AMBULANCE BAY /

DECONTAMINATION AREA BLDG. 200

PROJECT #578-315

Submitted by the Team of:

PFB ARCHITECTS, INC. / MELVIN COHEN AND

ASSOCIATES, INC

9461 Kenwood Road, Cincinnati, OH 45242

Original Drawing Issue Date 10.26.10 Architectural Drawing Revision Date 02.11.11

MEP Drawing Revision Date 01.14.11 Date of Project Re-Issue 06.08.12

04-04

DEPARTMENT OF VETERANS AFFAIRS

CANOPY/AMBULANCE BAY/DECONTAMINATION AREA BLDG. 200

TABLE OF CONTENTS

Section 00003

VOLUME 2

DIVISION 13 - SPECIAL CONSTRUCTION

13930 Wet & Dry Sprinklers 08-01M

DIVISION 14 - CONVEYING SYSTEMS NOT USED

DIVISION 15 – MECHANICAL

15050 Basic Methods and Requirements (Mechanical) 04-04M 15200 Noise and Vibration Control 11-02M 15250 Insulation 11-02M 15400 Plumbing Systems 06-97M 15450 Plumbing Fixtures and Trim 11-02M 15705 HVAC Piping Systems 11-02M 15740 Terminal Units 09-02M 15750 Heating and Cooling Coils 06-99M 15822 Fans 06-99M 15840 Ductwork and Accessories 12-02M 15885 Air Filters 12-02M 15902 Controls and Instrumentation (DDC) 09-00M 15980 Testing, Adjusting and Balancing 12-02M 15991 Demonstrations and Tests - Boiler Plant 01-00M

DIVISION 16 – ELECTRICAL

16050 Basic Methods and Requirements (Electrical) 04-02M 16111 Conduit Systems 09-01M 16127 Cables, Low Voltage (600 Volts and Below) 09-01M 16140 Wiring Devices 03-03M 16150 Motors 05-03M 16155 Motor Starters 03-00M 16160 Panelboards 02-02M 16170 Disconnect Switches (Motor and Circuit) 03-00 16450 Grounding 08-02M 16460 Transformers (General Purpose) 02-02M 16510 Building Lighting, Interior 03-03M 16721 Modification to Existing Fire Alarm System

- - - E N D - - -

The "M" after the date denotes that the document is now in dual Metric/English.

00003-1

15050-1 VA Hines Emergency Dept.

SECTION 15050

BASIC METHODS AND REQUIREMENTS (MECHANICAL)

PART 1 - GENERAL

1.1 DESCRIPTION

A. Basic methods and requirements for Division 15, MECHANICAL, applies to all sections of Division 15.

B. Definitions:

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

2. Option or optional: Contractor's choice of an alternate material or method.

C. Contractor shall complete all required mechanical and electrical provisions for a fully functional HVAC system when hospital user groups have been given beneficial occupancy.

1.2 RELATED WORK

A. Section 05500, METAL FABRICATIONS.

B. Section 07270, FIRESTOPPING.

C. Flashing for Wall and Roof Penetrations: Section 07600, FLASHING

AND SHEET METAL.

D. Section 07920, SEALANTS AND CAULKING.

E. Section 09900, PAINTING.

F. Section 15200, NOISE AND VIBRATION CONTROL.

G. Section 15250, INSULATION.

H. Section 15740, TERMINAL UNITS.

I. Section 15980, TESTING, ADJUSTING, AND BALANCING.

J. Section 16150, MOTORS.

K. Section 16155, MOTOR STARTERS.

L. Section 16050, BASIC METHODS AND REQUIREMENTS (ELECTRICAL)

1.3 QUALITY ASSURANCE

A. Flow Rate Tolerance for HVAC Equipment: Section 15980, TESTING, ADJUSTING, AND BALANCING.

B. Equipment Vibration Tolerance:

15050-2

1. The allowable vibration tolerance is specified in Section 15200, NOISE AND VIBRATION CONTROL. Equipment specifications require factory balancing of equipment to this tolerance.

2. After air balance work is completed and permanent drive sheaves are in place, perform field mechanical balancing and adjustments required to meet the specified vibration tolerance.

C. Products Criteria:

1. Standard Products: Material and equipment shall be the standard products of a manufacturer regularly engaged in the manufacture of the products for at least 3 years. See other specification sections for any exceptions.

2. Equipment Service: Products shall be supported by a service organization which maintains a complete inventory of repair parts and is located reasonably close to the site.

3. Multiple Units: When two or more units of materials or equipment of the same type or class are required, these units shall be products of one manufacturer.

4. Assembled Units: Manufacturers of equipment assemblies, which use components made by others, assume complete responsibility for the final assembled product.

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

6. Asbestos products or equipment or materials containing asbestos shall not be used.

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

1. Qualify welding processes and operators for piping according to ASME "Boiler and Pressure Vessel Code", section IX, "Welding and Brazing Qualifications".

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

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

E. Manufacturer's Recommendations: Where installation procedures or any part thereof are required to be in accordance with the recommendations of the manufacturer of the material being installed, printed copies of these recommendations shall be furnished to the Resident Engineer prior to installation.

15050-3

Installation of the item will not be allowed to proceed until the recommendations are received. Failure to furnish these recommendations can be cause for rejection of the material.

F. Guaranty: Section 01001, GENERAL CONDITIONS.

G. Guarantee Period Services: Guarantee period for mechancnial systems shall be for a period of (2) years or as otherwise noted in the individual specifications sections starting with the final day of acceptance. The detailed guarantee period service requirements for individual systems have been described in the individual specifications sections.

1. Qualifications: All service technicians assigned to perform work under this contract shall be qualified and factory trained by the Original Equipment Manufacturer (O.E.M.).

Each technician shall have at least three years experience of working on comparable systems and shall be a full time employee of the contractor. The contractor shall furnish, for the Department of Veterans Affairs (VA) review and approval, resumes of all service technicians scheduled to service the equipment and systems. The resume shall include details of experience, training, and educational qualifications and performance evaluations.

2. Replacement Parts: The contractor shall be equipped with all replacement parts of all equipment and systems to be serviced and the manufacturer’s standard service and repair procedures. All replacement parts shall be brand new and of current design. The replacement parts shall be O.E.M.

items. Obsolete or refurbished parts are unacceptable.

“Approved Equal” parts must have prior approval of the Contracting Officer. Contractor shall furnish evidence of guaranteed supply of parts for the life of the system.

3. Service Supplies: The services shall include, without any additional cost to the government, all replacement parts, special tools and equipment, and consumable materials, that is, lubrication oil, grease, and cleaning materials, as required. The requirement of UL listing, where applicable, shall not be voided by any replacement parts, components, software, or modifications provided by the contractor.

4. Scheduled and Emergency Call Service: The service shall include a scheduled same day two hour response time for equipment and/or systems on a 7 day, 24 hours call back service for emergency service. The emergency service is defined as a situation created by a breakdown or malfunction of any equipment or system warranting urgent attention. A qualified service representative shall respond to the VA request for emergency service within two hours and assess the problem either by telephone or remote diagnostic capability. If the emergency situation cannot be rectified by the VA personnel, on site emergency service shall be provided by sending a qualified service representative within 24 hours. For the rural locations of the VA medical centers, situated over 200 miles from the contractor’s

15050-4 established service depot, the maximum response time of 48 hours shall be acceptable. The emergency service shall be limited to adjustments and repairs specifically required to protect the safety of the equipment for which the emergency service was required to be performed.

1.4 SUBMITTALS

A. Submit in accordance with Section 01340, SAMPLES AND SHOP

DRAWINGS.

B. Manufacturer's Literature and Data: Submit under the pertinent section rather than under this section.

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

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

3. Equipment and materials identification.

4. Fire-stopping materials.

5. Hangers, inserts, supports and bracing. Provide load calculations for variable spring and constant support hangers.

6. Wall, floor, and ceiling plates.

C. Coordination Drawings: In accordance with Section 01001, GENERAL CONDITIONS, Article, SUBCONTRACTS AND WORK COORDINATION. Provide detailed layout drawings of all piping and duct systems. In addition provide details of the following.

1. Mechanical equipment rooms.

2. Interstitial space.

3. Hangers, inserts, supports, and bracing.

4. Pipe sleeves.

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

D. Maintenance Data and Operating Instructions:

1. Maintenance and operating manuals in accordance with Section 01010, GENERAL REQUIREMENTS, Article, INSTRUCTIONS, for systems and equipment.

2. Provide a listing of recommended replacement parts for keeping in stock supply, including sources of supply, for equipment. Include in the listing belts for equipment: Belt

15050-5 manufacturer, model number, size and style, and distinguished whether of multiple belt sets.

E. Provide copies of approved HVAC equipment submittals to the Testing, Adjusting and Balancing Subcontractor.

1.5 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only.

B. Federal Specifications (Fed. Spec.):

FF-S-325 . . . . . . . Shield, Expansion; Nail, Expansion; and Nail, Drive Screw (Devices, Anchoring, Masonry)

C. Air Conditioning and Refrigeration Institute (ARI):

430-89 . . . . . . . . Central Station Air-Handling Units

D. American National Standard Institute (ANSI):

B31.1-98 . . . . . . . Power Piping

E. Rubber Manufacturers Association (ANSI/RMA):

IP-20-88 . . . . . . . Drives Using Classical V-Belts and Sheaves - Cross Sections A, B, C, D, and E

IP-21-91 . . . . . . . Drives Using Double-V (Hexagonal) Belts (AA, BB,XX, DD Cross Sections)

IP-22-91 . . . . . . . Drives Using Narrow Multiple V-Belts (3V, 5V,and 8V Cross Sections)

F. Air Movement and Control Association (AMCA):

410-96 . . . . . . . . Recommended Safety Practices for Air Moving Devices

G. American Society of Mechanical Engineers (ASME):

Boiler and Pressure Vessel Code (BPVC):

SEC IX-98 . . . . . . . Qualifications Standard for Welding and Brazing Procedures, Welders, Brazers, and Welding and Brazing Operators

H. American Society for Testing and Materials (ASTM):

A36/A36M-97 . . . . . . Carbon Structural Steel

A575-96 . . . . . . . . Steel Bars, Carbon, Merchant Quality, M- Grades

15050-6

E84-98 . . . . . . . . Surface Burning Characteristics of Building Materials

E119-98 . . . . . . . . Fire Tests of Building Construction and Materials

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

SP-58-93 . . . . . . . Pipe Hangers and Supports-Materials, Design and Manufacture

SP-69-96 . . . . . . . Pipe Hangers and Supports-Selection and Application

J. National Association of Plumbing - Heating - Cooling Contractors

(NAPHCC):

1996 . . . . . . . . . National Standard Plumbing Code

K. National Fire Protection Association (NFPA):

90A-96 . . . . . . . . Installation of Air Conditioning and Ventilating Systems

101-97 . . . . . . . . Life Safety Code

PART 2 - PRODUCTS

2.1 BELT DRIVES

A. Type: ANSI/RMA standard V-belts with proper motor pulley and driven sheave. Belts shall be constructed of reinforced cord and rubber.

B. Dimensions, rating and selection standards: ANSI/RMA IP-20 and

IP-21.

C. Minimum Horsepower Rating: Motor horsepower plus recommended ANSI/RMA service factor (not less than 20 percent) in addition to the ANSI/RMA allowances for pitch diameter, center distance, and arc of contact.

D. Maximum Speed: 5000 feet per minute.

E. Adjustment Provisions: For alignment and ANSI/RMA standard allowances for installation and take-up.

F. Drives may utilize a single V-Belt (any cross section) when it is the manufacturer's standard.

G. Multiple Belts: Matched to ANSI/RMA specified limits by measurement on a belt measuring fixture. Seal matched sets together to prevent mixing or partial loss of sets. Replacement, when necessary, shall be an entire set of new matched belts.

15050-7

H. Sheaves and Pulleys:

1. Material: Pressed steel, or close grained cast iron.

2. Bore: Fixed or bushing type for securing to shaft with keys.

3. Balanced: Statically and dynamically.

4. Groove spacing for driving and driven pulleys shall be the same.

5. Minimum Diameter of V-Belt Sheaves (ANSI/RMA recommendations)in inches:

Fractional Horsepower

Standard High Capacity

Cross Section

Min. od (in)

Cross Section

Min. od (in)

Cross Section

Min. od (in)

2L 0.8 A 3.25 3V 2.65 3L 1.5 B 5.75 4V 7.10 4L 2.5 C 9.40 5V 12.50 5L 3.5 D 13.60

E 21.80

I. Drive Types, Based on ARI 435:

1. Provide adjustable-pitch or fixed-pitch drive as follows:

a.Fan speeds up to 1800 RPM: 10 horsepower and smaller.

b.Fan speeds over 1800 RPM: 3 horsepower and smaller.

2. Provide fixed-pitch drives for drives larger than those listed above.

3. The final fan speeds required to just meet the system CFM and pressure requirements, without throttling, shall be determined by adjustment of a temporary adjustable-pitch motor sheave or by fan law calculation if a fixed-pitch drive is used initially.

2.2 DRIVE GUARDS

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

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

C. Access for Speed Measurement: One inch diameter hole at each shaft center.

15050-8

2.3 ELECTRIC MOTORS

A. Section 16150, MOTORS, specifies the applicable requirements for electric motors. Provide special energy efficient motors as scheduled. Unless otherwise specified for a particular application use electric motors with the following requirements.

B. Single-phase Motors: Capacitor-start type for hard starting applications. Motors for centrifugal fans and pumps may be split phase or permanent split capacitor (PSC).

C. Poly-phase Motors: NEMA Design B, Squirrel cage, induction type.

Each two-speed motor shall have two separate windings. Provide a time- delay(20 seconds minimum) relay for switching from high to low speed.

D. Rating: Continuous duty at 100 percent capacity in an ambient temperature of 104 degrees F; minimum horsepower as shown on drawings; maximum horsepower in normal operation not to exceed nameplate rating without service factor.

E. Insulation Resistance: Not less than one-half meg-ohm between stator conductors and frame, to be determined at the time of final inspection.

2.4 EQUIPMENT AND MATERIALS IDENTIFICATION

A. Use symbols, nomenclature and equipment numbers specified, shown on the drawings and shown in the maintenance manuals. In addition, provide bar code identification nameplate for all equipment which will allow the equipment identification code to be scanned into the system for maintenance and inventory tracking. Identification for piping is specified in Section 09900, PAINTING.

B. Interior (Indoor) Equipment: Engraved nameplates, with letters not less than 3/16-inch high of brass with black-filled letters, or rigid black plastic with white letters specified in Section 09900, PAINTING permanently fastened to the equipment. Identify unit components such as coils, filters, fans, etc.

C. Exterior (Outdoor) Equipment: Brass nameplates, with engraved black filled letters, not less than 3/16-inch high riveted or bolted to the equipment.

D. Control Items: Label all temperature and humidity sensors, controllers and control dampers. Identify and label each item as they appear on the control diagrams.

E. Valve Tags and Lists:

1. Plumbing: Provide for all valves (Fixture stops not included).

2. HVAC: Provide for all valves other than for equipment in Section 15740, TERMINAL UNITS.

15050-9

3. Valve tags: Engraved black filled numbers and letters not less than 1/2-inch high for number designation, and not less than 1/4-inch for service designation on 19 gage 1-1/2 inches round brass disc, attached with brass "S" hook or brass chain.

4. Valve lists: Typed or printed plastic coated card(s), sized 8-1/2 inches by 11 inches showing tag number, valve function and area of control, for each service or system. Punch sheets for a 3-ring notebook.

5. Provide detailed plan for each floor of the building indicating the location and valve number for each valve.

Identify location of each valve with a color-coded thumbtack in ceiling.

2.5 FIRESTOPPING

Section 07270, FIRESTOPPING specifies an effective barrier against the spread of fire, smoke and gases where penetrations occur for piping and ductwork. Refer to Section 15250, INSULATION, for firestop pipe and duct insulation.

2.6 GALVANIZED REPAIR COMPOUND

Mil. Spec. DOD-P-21035B, paint form.

2.7 PIPE AND EQUIPMENT SUPPORTS AND RESTRAINTS

A. Vibration Isolators: Refer to Section 15200, NOISE AND VIBRATION

CONTROL.

B. In lieu of the paragraph which follow, suspended equipment support and restraints may be designed and installed in accordance with the National Uniform Seismic Installation Guidelines (NUSIG), most current edition. Submittals based on either the NUSIG guidelines or the following paragraphs of this Section shall be stamped and signed by a professional engineer registered in a state where the project is located. Support of suspended equipment over 500 pounds shall be submitted for approval of the Resident Engineer in all cases. See paragraph 2.8.L for lateral force design requirements.

C. Supports For Roof Mounted Items:

1. Equipment: Equipment rails shall be galvanized steel, minimum 18 gauge, with integral baseplate, continuous welded corner seams, factory installed 2 by 4 treated wood nailer, 18 gauge galvanized steel counter flashing cap with screws, built-in cant strip, (except for gypsum or tectum deck), minimum height 11 inches. For surface insulated roof deck, provide raised cant strip to start at the upper surface of the insulation.

2. Pipe/duct pedestals: Provide a galvanized unistrut channel welded to U-shaped mounting brackets which are secured to side of rail with galvanized lag bolts.

15050-10

D. Type Numbers Specified: MSS SP-58. For selection and application refer to MSS SP-69. Refer to Section 05500, METAL FABRICATIONS, for miscellaneous metal support materials and prime coat painting.

E. For Attachment to Concrete Construction:

1. Concrete insert: Type 18, MSS SP-58.

2. Self-drilling expansion shields and machine bolt expansion anchors: Fed. Spec. FF-S-325, permitted in concrete not less than four inches thick. Applied load shall not exceed one-fourth the proof test load listed in Fed. Spec.

FF-S-325.

3. Power-driven fasteners: Permitted in existing concrete or masonry not less than four inches thick when approved by the Resident Engineer for each job condition. Applied load shall not exceed one-fourth the proof test load listed in Fed.

Spec. FF-S-325.

F. For Attachment to Steel Construction: MSS SP-58.

1. Welded attachment: Type 22.

2. Beam clamps: Types 20, 21, 28 or 29. Type 23 C-clamp may be used for individual copper tubing up to 7/8-inch outside diameter.

G. achment to Metal Pan or Deck: As required for materials specified in Section 05321, STEEL DECKING COMPOSITE.

H. For Attachment to Wood Construction: Wood screws or lag bolts.

I. Hanger Rods: Hot-rolled steel, ASTM A36 or A575 for allowable load listed in MSS SP-58. For piping, provide adjustment means for controlling level or slope. Types 13 or 15 turn-buckles shall provide 1-1/2 inches minimum of adjustment and incorporate locknuts. All-thread rods are acceptable.

J. Multiple (Trapeze) Hangers: Galvanized, cold formed, lipped steel channel horizontal member, not less than 1-5/8 inches by 1-5/8 inches, No. 12 gage, designed to accept special spring held, hardened steel nuts. Not permitted for steam supply and condensate piping.

1. Allowable hanger load: Manufacturers rating less 91kg ( 200 pounds).

5. Guide individual pipes on the horizontal member of every other trapeze hanger with 1/4-inch U-bolt fabricated from steel rod. Provide Type 40 insulation shield, secured by two 1/2-inch galvanized steel bands, or preinsulated calcium silicate shield for insulated piping at each hanger.

K. Pipe Hangers and Supports: (MSS SP-58), use hangers sized to encircle insulation on insulated piping. Refer to Section 15250, INSULATION for insulation thickness. To protect insulation, 15050-11 provide Type 39 saddles for roller type supports or preinsulated calcium silicate shields. Provide Type 40 insulation shield or preinsulated calcium silicate shield at all other types of supports and hangers including those for preinsulated piping.

1. General Types (MSS SP-58):

a. Standard clevis hanger: Type 1; provide locknut.

b. Riser clamps: Type 8.

c. Wall brackets: Types 31, 32 or 33.

d. Roller supports: Type 41, 43, 44 and 46.

e. Saddle support: Type 36, 37 or 38.

f. Turnbuckle: Types 13 or 15. preinsulate

g. U-bolt clamp: Type 24.

h. Copper Tube:

1) Hangers, clamps and other support material in contact with tubing shall be painted with copper colored epoxy paint, plastic coated or taped with non adhesive isolation tape to prevent electrolysis.

2) For vertical runs use epoxy painted or plastic coated riser clamps.

3) For supporting tube to strut: Provide epoxy painted pipe straps for copper tube or plastic inserted vibration isolation clamps.

4) Insulated Lines: Provide pre-insulated calcium silicate shields sized for copper tube.

i. Supports for plastic or glass piping: As recommended by the pipe manufacturer with black rubber tape extending one inch beyond steel support or clamp.

2. HVAC Piping (Other Than General Types):

a. Medium and high pressure steam:

1) Provide eye rod or Type 17 eye nut near the upper attachment.

2) Piping 2 inches and larger: Type 43 roller hanger. For roller hangers requiring seismic bracing provide a Type 1 clevis hanger with Type 41 roller attached by flat side bars.

b. Spring Supports (Expansion and contraction of vertical piping):

1) Movement up to 3/4-inch: Type 51 or 52 variable spring unit with integral turn buckle and load indicator.

2) Movement more than 3/4-inch: Type 54 or 55 constant support unit with integral adjusting nut, turn buckle and travel position indicator.

3. Convertor and Expansion Tank Hangers: May be Type 1 sized for the shell diameter. Insulation where required will cover the hangers.

15050-12

4. Plumbing Piping (Other Than General Types):

a. Horizontal piping: Type 1, 5, 7, 9, and 10.

b. Chrome plated piping: Chrome plated supports.

c. Hangers and supports in pipe chase: Prefabricated system ABS self-extinguishing material, not subject to electrolytic action, to hold piping, prevent vibration and compensate for all static and operational conditions.

d. Blocking, stays and bracing: Angle iron or preformed metal channel shapes, 18 gage minimum.

L. Pre-insulated Calcium Silicate Shields:

1. Provide 360 degree water resistant high density 140 psi compressive strength calcium silicate shields encased in galvanized metal.

2. Pre-insulated calcium silicate shields to be installed at the point of support during erection.

3. Shield thickness shall match the pipe insulation.

4. The type of shield is selected by the temperature of the pipe, the load it must carry, and the type of support it will be used with.

a. Shields for supporting chilled or cold water shall have insulation that extends a minimum of 1 inch past the sheet metal. Provide for an adequate vapor barrier in chilled lines.

b. The pre-insulated calcium silicate shield shall support the maximum allowable water filled span as indicated in MSS-SP 69. To support the load, the shields may have one or more of the following features: structural inserts 600 psi compressive strength, an extra bottom metal shield, or formed structural steel (ASTM A36) wear plates welded to the bottom sheet metal jacket.

5. Shields may be used on steel clevis hanger type supports, roller supports or flat surfaces.

2.8 PIPE PENETRATIONS

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

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

1. For sleeves: Extend sleeve one inch above finished floor and provide sealant for watertight joint.

2. For blocked out floor openings: Provide 1-1/2 inch angle set in silicone adhesive around opening.

15050-13

3. For drilled penetrations: Provide 1-1/2 inch angle ring or square set in silicone adhesive around penetration.

C. Penetrations are not allowed through beams or ribs, but may be installed in concrete beam flanges. Any deviation from this requirements must receive prior approval of Resident Engineer.

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

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

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

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

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

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

J. Sealant and Adhesives: Shall be as specified in Section 07920, SEALANTS AND CAULKING.

2.9 TOOLS AND LUBRICANTS

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

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

C. Tool Containers: Hardwood or metal, permanently identified for in tended service and mounted, or located, where directed by the Resident Engineer.

D. Lubricants: A minimum of one quart of oil, and one pound of grease, of equipment manufacturer's recommended grade and type, in unopened containers and properly identified as to use for each different application.

15050-14

2.10 WALL, FLOOR AND CEILING PLATES

A. Material and Type: Chrome plated brass or chrome plated steel, one piece or split type with concealed hinge, with set screw for fastening to pipe, or sleeve. Use plates that fit tight around pipes, cover openings around pipes and cover the entire pipe sleeve projection.

B. Thickness: Not less than 3/32-inch for floor plates. For wall and ceiling plates, not less than 0.025-inch for up to 3-inch pipe, 0.035-inch for larger pipe.

C. Locations: Use where pipe penetrates floors, walls and ceilings in exposed locations, in finished areas only. Use also where insulation ends on exposed water supply pipe drop from overhead.

Provide a watertight joint in spaces where brass or steel pipe sleeves are specified.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Coordinate location of piping, sleeves, inserts, hangers, ductwork and equipment. Locate piping, sleeves, inserts, hangers, ductwork and equipment clear of windows, doors, openings, light outlets, and other services and utilities. Follow manufacturer's published recommendations for installation methods not otherwise specified.

B. Protection and Cleaning:

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

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

C. Concrete and Grout: Use concrete and shrink compensating grout 25 MPa (3000 psi) minimum, specified in Section 03300, CAST-IN-PLACE

CONCRETE.

D. Install gages, thermometers, valves and other devices with due regard for ease in reading or operating and maintaining said devices. Locate and position thermometers and gages to be easily read by operator or staff standing on floor or walkway provided.

Servicing shall not require dismantling adjacent equipment or pipe work.

15050-15

E. Install steam piping expansion joints as per manufacturer’s recommendations.

F. Work in Existing Building:

1. Perform as specified in Article, OPERATIONS AND STORAGE AREAS, Article, ALTERATIONS, and Article, RESTORATION of the Section 01010, GENERAL REQUIREMENTS for relocation of existing equipment, alterations and restoration of existing building(s).

2. As specified in Section 01010, GENERAL REQUIREMENTS, Article, OPERATIONS AND STORAGE AREAS, make alterations to existing service piping at times that will least interfere with normal operation of the facility.

3. Cut required openings through existing masonry and reinforced concrete using diamond core drills. Use of pneumatic hammer type drills, impact type electric drills, and hand or manual hammer type drills, will be permitted only with approval of the Resident Engineer. Locate openings that will least effect structural slabs, columns, ribs or beams. Refer to the Resident Engineer for determination of proper design for openings through structural sections and opening layouts approval, prior to cutting or drilling into structure. After Resident Engineer's approval, carefully cut opening through construction no larger than absolutely necessary for the required installation.

G. Switchgear Drip Protection: Every effort shall be made to eliminate the installation of pipe above electrical and telephone switchgear. If this is not possible, encase pipe in a second pipe with a minimum of joints.

H. Inaccessible Equipment:

1. Where the Government determines that the Contractor has installed equipment not conveniently accessible for operation and maintenance, equipment shall be removed and reinstalled or remedial action performed as directed at no additional cost to the Government.

2. The term "conveniently accessible" is defined as capable of being reached without the use of ladders, or without climbing or crawling under or over obstacles such as motors, fans, pumps, belt guards, transformers, high voltage lines, piping, and ductwork.

3.2 PIPE AND EQUIPMENT SUPPORTS

A. Where hanger spacing does not correspond with joist or rib spacing, use structural steel channels secured directly to joist and rib structure that will correspond to the required hanger spacing, and then suspend the equipment and piping from the channels. Drill or burn holes in structural steel only with the prior approval of the Resident Engineer.

15050-16

B. Use of chain, wire or strap hangers; wood for blocking, stays and bracing; or, hangers suspended from piping above will not be permitted. Replace or thoroughly clean rusty products and paint with zinc primer.

C. Use hanger rods that are straight and vertical. Turnbuckles for vertical adjustments may be omitted where limited space prevents use. Provide a minimum of 1/2-inch clearance between pipe or piping covering and adjacent work.

D. HVAC Horizontal Pipe Support Spacing: Refer to MSS SP-69. Provide additional supports at valves, strainers, in-line pumps and other heavy components. Provide a support within one foot of each elbow.

E. HVAC Vertical Pipe Supports:

1. Up to 6-inch pipe, 30 feet long, bolt riser clamps to the pipe below couplings, or welded to the pipe and rests supports securely on the building structure.

2. Vertical pipe larger than the foregoing, support on base elbows or tees, or substantial pipe legs extending to the building structure.

F. Plumbing horizontal and vertical pipe supports, refer to the NAPHCC National Standard Plumbing Code.

3.3 MOTOR AND DRIVE ALIGNMENT

A. Belt Drive: Set driving and driven shafts parallel and align so that the corresponding grooves are in the same plane.

B. Direct-connect Drive: Securely mount motor in accurate alignment so that shafts are free from both angular and parallel misalignment when both motor and driven machine are operating at normal temperatures.

3.4 LUBRICATION

Field check and lubricate equipment requiring lubrication prior to initial operation.

3.5 STARTUP AND TEMPORARY OPERATION

Start up equipment as described in equipment specifications. Verify that vibration is within specified tolerance prior to extended operation.

Temporary use of equipment is specified in Section 01010, GENERAL REQUIREMENTS, Article, TEMPORARY USE OF MECHANICAL AND ELECTRICAL

EQUIPMENT.

3.6 OPERATING AND PERFORMANCE TESTS

A. Prior to the final inspection, perform required tests as specified in Section 01010, GENERAL REQUIREMENTS, Article, TESTS and submit the test reports and records to the Resident Engineer.

15050-17

B. Should evidence of malfunction in any tested system, or piece of equipment or component part thereof, occur during or as a result of tests, make proper corrections, repairs or replacements, and repeat tests at no additional cost to the Government.

C. When completion of certain work or system occurs at a time when final control settings and adjustments cannot be properly made to make performance tests, then make performance tests for heating systems and for cooling systems respectively during first actual seasonal use of respective systems following completion of work.

3.7 INSTRUCTIONS TO VA PERSONNEL

Provide in accordance with Article, INSTRUCTIONS, of Section 01010, GENERAL REQUIREMENTS.

15200-1

SECTION 15200

NOISE AND VIBRATION CONTROL

PART 1 - GENERAL

1.1 DESCRIPTION

Noise criteria, vibration tolerance and vibration isolation for HVAC and plumbing work.

1.2 RELATED WORK

A. Section 15050, BASIC METHODS AND REQUIREMENTS (MECHANICAL):

General mechanical requirements and items, which are common to more than one section of Division 15.

B. Section 15705, HVAC PIPING SYSTEMS: Requirements for flexible pipe connectors to reciprocating and rotating mechanical equipment.

C. Section 15200, DUCTWORK AND ACCESSORIES: requirements for flexible duct connectors, sound attenuators and sound absorbing duct lining.

D. Section 15980, TESTING, ADJUSTING AND BALANCING: requirements for sound and vibration tests.

1.3 QUALITY ASSURANCE

A. Refer to article, QUALITY ASSURANCE in specification Section

15050, BASIC METHODS AND REQUIREMENTS (MECHANICAL).

B. Noise Criteria:

1. Noise levels in all 8 octave bands due to equipment and duct systems shall not exceed following NC levels:

TYPE OF ROOM NC LEVEL

Bathrooms and Toilet Rooms 40 Conference Rooms 35 Corridors (Nurse Stations) 40 Corridors(Public) 40 Examination Rooms 35 Lobbies, Waiting Areas 40 Offices, small private 35 Patient Rooms 35 Treatment Rooms 35

2. For equipment which has no sound power ratings scheduled on the plans, the contractor shall select equipment such that the fore-going noise criteria, local ordinance noise levels, and OSHA requirements are not exceeded. Selection procedure shall be in accordance with ASHRAE Fundamentals Handbook 2001, Chapter 7, Sound and Vibration.

15200-2

3. An allowance, not to exceed 5db, may be added to the measured value to compensate for the variation of the room attenuating effect between room test condition prior to occupancy and design condition after occupancy which may include the addition of sound absorbing material, such as, furniture. This allowance may not be taken after occupancy.

The room attenuating effect is defined as the difference between sound power level emitted to room and sound pressure level in room.

4. In absence of specified measurement requirements, measure equipment noise levels three feet from equipment and at an elevation of maximum noise generation.

1.4 SUBMITTALS

A. Submit in accordance with specification Section 01340, SAMPLES AND

SHOP DRAWINGS.

B.B. Manufacturer's Literature and Data:

1. Vibration isolators:

a. Floor mountings

b. Hangers

c. Snubbers

d. Thrust restraints

2. Bases.

3. Acoustical enclosures.

C. Isolator manufacturer shall furnish with submittal load calculations for selection of isolators, including supplemental bases, based on lowest operating speed of equipment supported.

1.5 APPLICABLE PUBLICATIONS

A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only.

B. American Society of Heating, Refrigerating and Air-Conditioning Engineers, Inc. (ASHRAE):

2001 . . . . . . Fundamentals Handbook 2001, Sound and Vibration, Chapter 7

C. American Society for Testing and Materials (ASTM):

A123/A123M-00 . . Zinc (Hot-Dip Galvanized) Coatings on Iron and Steel Products

A307-00 . . . . . Carbon Steel Bolts and Studs, 60,000 PSI Tensile Strength

15200-3

D2240-00 . . . . Standard Test Method for Rubber Property - Durometer Hardness

D. Manufacturers Standardization (MSS):

SP-58-93 . . . . Pipe Hangers and Supports-Materials, Design and Manufacture

E. Occupational Safety and Health Administration (OSHA):

29 CFR 1910 . . . Guidelines for Noise Enforcement, Appendix A, PART 2 - PRODUCTS

2.1 GENERAL REQUIREMENTS

A. Type of isolator, base, and minimum static deflection shall be as required for each specific equipment application as recommended by isolator or equipment manufacturer but subject to minimum requirements indicated herein and in the schedule on the drawings.

B. Elastometric Isolators shall comply with ASTM D2240 and be oil resistant neoprene with a maximum stiffness of 60 durometer and have a straight-line deflection curve.

C. Exposure to weather: Isolators, including springs, exposed to weather shall be hot dip galvanized after fabrication. Hot-dip zinc coating shall not be less than two ounces per square foot by weight complying with ASTM A123.In addition provide limit stops to resist wind velocity.

D. Uniform Loading: Select and locate isolators to produce uniform loading and deflection even when equipment weight is not evenly distributed.

E. Color code isolators by type and size for easy identification of capacity.

2.2 VIBRATION ISOLATORS

A. Floor Mountings:

1. Double Deflection Neoprene (Type N): Shall include neoprene covered steel support plated (top and bottom), friction pads, and necessary bolt holes.

2. Spring Isolators (Type S): Shall be free-standing, laterally stable and include acoustical friction pads and leveling bolts. Isolators shall have a minimum ratio of spring diameter-to-operating spring height of 1.0 and an additional travel to solid equal to 50 percent of rated deflection.

3. Spring Isolators with Vertical Limit Stops (Type SP):

Similar to spring isolators noted above, except include a vertical limit stop to limit upward travel if weight is removed and also to reduce movement and spring extension due

15200-4 to wind loads. Provide clearance around restraining bolts to prevent mechanical short circuiting.

4. Pads (Type D), Washers (Type W), and Bushings (Type L): Pads shall be felt, cork, neoprene waffle, neoprene and cork sandwich, neoprene and fiberglass, neoprene and steel waffle, or reinforced duck and neoprene. Washers and bushings shall be reinforced duck and neoprene. Size pads for a maximum load of 50 pounds per square inch.

B. Hangers: Shall be combination neoprene and springs unless otherwise noted and shall allow for expansion of pipe.

1. Combination Neoprene and Spring (Type H): Vibration hanger shall contain a spring and double deflection neoprene element in series. Spring shall have a diameter not less than 0.8 of compressed operating spring height. Spring shall have a minimum additional travel of 50 percent between design height and solid height. Spring shall permit a 15 degree angular misalignment without rubbing on hanger box.

2. Spring Position Hanger (Type HP): Similar to combination neoprene and spring hanger except hanger shall hold piping at a fixed elevation during installation and include a secondary adjustment feature to transfer load to spring while maintaining same position.

3. Neoprene (Type HN): Vibration hanger shall contain a double deflection type neoprene isolation element. Hanger rod shall be separated from contact with hanger bracket by a neoprene grommet.

4. Spring (Type HS): Vibration hanger shall contain a coiled steel spring in series with a neoprene grommet. Spring shall have a diameter not less than 0.8 of compressed operating spring height. Spring shall have a minimum additional travel of 50 percent between design height and solid height. Spring shall permit a 15 degree angular misalignment without rubbing on hanger box.

5. Hanger supports for piping 50 mm (2 inches) and larger shall have a pointer and scale deflection indicator.

C. Thrust Restraints (Type THR): Restraints shall provide a spring element contained in a steel frame with neoprene pads at each end attachment. Restraints shall have factory preset thrust and be field adjustable to allow a maximum movement of 1/4 inch when the fan starts and stops. Restraint assemblies shall include rods, angle brackets and other hardware for field installation.

2.3 BASES

A. Rails (Type R): Design rails with isolator brackets to reduce mounting height of equipment and cradle machines having legs or bases that do not require a complete supplementary base. To assure adequate stiffness, height of members shall be a minimum of 1/12 of longest base dimension but not less than 4 inches. Where rails

15200-5 are used with neoprene mounts for small fans or close coupled pumps, extend rails to compensate overhang of housing.

B. Integral Structural Steel Base (Type B): Design base with isolator brackets to reduce mounting height of equipment which require a complete supplementary rigid base. To assure adequate stiffness, height of members shall be a minimum of 1/12 of longest base dimension, but not less than four inches.

C. Curb Mounted Isolation Base (Type CB): Fabricate from aluminum to fit on top of standard curb with overlap to allow water run-off and have wind and water seals which shall not interfere with spring action. Provide resilient snubbers 1/4 inch clearance for wind resistance. Top and bottom bearing surfaces shall have sponge type weather seals. Integral spring isolators shall comply with Spring Isolator (Type S) requirements.

2.4 SOUND ATTENUATING UNITS

Refer to specification Section 15840, DUCTWORK AND ACCESSORIES.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Vibration Isolation:

1. No metal-to-metal contact will be permitted between fixed and floating parts.

2. Connections to Equipment: Allow for deflections equal to or greater than equipment deflections. Electrical, drain, piping connections, and other items made to rotating or reciprocating equipment (pumps, compressors, etc.) which rests on vibration isolators, shall be isolated from building structure for first three hangers or supports.

3. Common Foundation: Mount each electric motor on same foundation as driven machine. Hold driving motor and driven machine in positive rigid alignment with provision for adjusting motor alignment and belt tension. Bases shall be level throughout length and width. Provide shims to facilitate pipe connections, leveling, and bolting.

4. Provide heat shields where elastomers are subject to temperatures over l00 degrees F.

5. Extend bases for pipe elbow supports at discharge and suction connections at pumps. Pipe elbow supports shall not short circuit pump vibration to structure.

6. Non-rotating equipment such as heat exchangers and convertors shall be mounted on isolation units having the same static deflection as the isolation hangers or support of the pipe connected to the equipment.

15200-6

B. Inspection and Adjustments: Check for vibration and noise transmission through connections, piping, ductwork, foundations, and walls. Adjust, repair, or replace isolators as required to reduce vibration and noise transmissions to specified levels.

3.2 ADJUSTING

A. Adjust vibration isolators after piping systems are filled and equipment is at operating weight.

B. Adjust limit stops on restrained spring isolators to mount equipment at normal operating height. After equipment installation is complete, adjust limit stops so they are out of contact during normal operation.

C. Attach thrust limits at centerline of thrust and adjust to a maximum of 1/4inch movement during start and stop.

D. Adjust active height of spring isolators.

E. Adjust snubbers according to manufacturer's recommendations.

F. Torque anchor bolts according to equipment manufacturer's recommendations to resist seismic forces.

15200-7

SELECTION GUIDE FOR VIBRATION ISOLATORS *1

EQUIPMENT LOCATION *2

EQUIPMENT ON GRADE 6M (20FT) FLOOR

SPAN

9M (30FT) FLOOR

SPAN

12M (40FT) FLOOR

SPAN

15M (50FT) FLOOR

SPAN

BASE

TYPE

ISOL

TYPE

OMIN

DEFL

BASE

TYPE

ISOL

TYPE

OMIN

DEFL

BASE

TYPE

ISOL

TYPE

OMIN

DEFL

BASE

TYPE

ISOL

TYPE

OMIN

DEFL

BASE

TYPE

ISOL

TYPE

OMIN

DEFL

AIR HANDLING UNITS, PACKAGED

SUSPENDED:

UP THRU 5 HP - H 1.0 - H 1.0 - H 1.0 - H 1.0

7-1/2 HP AND OVER:

UP TO 500 RPM - H,TH

R

1.7 - H,TH

R

1.7 - H,TH

R

1.7 - H,TH

R

1.7

501 RPM AND

OVER

- H,T

HR

1.0 - H,T

HR

1.0 - H,T

HR

1.7 - H,T

HR

1.7

FLOOR MOUNTED:

UP THRU 5 HP - D - - S 1.0 - S 1.0 - S 1.0 - S 1.0

7-1/2 HP AND OVER:

UP TO 500 RPM - D - R S,TH

R

1.7 R S,TH

R

1.7 R S,TH

R

1.7 R S,TH

R

1.7

501 RPM AND

OVER

- D - - S,TH

R

1.0 - S,TH

R

1.0 R S,TH

R

1.7 R S,TH

R

1.7

IN-LINE CENTRIFUGAL & VANE AXIAL FANS

FLOOR MOUNTED (APR.9)

UP THRU 50 HP:

UP TO 300 RPM - D - R S 2.5 R S 2.5 R S 2.5 R S 3.5

301-500 RPM - D - R S 1.7 R S 1.7 R S 2.5 R S 2.5

501 RPM AND

OVER

- D - - S 1.0 - S 1.0 R S 1.7 R S 2.5

60 HP AND OVER:

301500 RPM R S 1.0 R S 1.7 R S 1.0 R S 2.5 R S 3.5

501 RPM AND

OVER

R S 1.0 R S 1.7 R S 1.0 R S 1.7 R S 2.5

FLOOR MOUNTED (APR.1): USE "B" TYPE IN LIEU OF "R" TYPE BASE

SUSPENDED: USE "H" ISOLATORS OF SAME DEFLECTION AS FLOOR MOUNTED

15200-8

SELECTION GUIDE FOR ISOLATORS *1

EQUIPMENT LOCATION *2

EQUIPMENT ON GRADE 20FT FLOOR SPAN 30FT FLOOR SPAN 40FT FLOOR SPAN 50FT FLOOR SPAN

BASE

TYPE

ISOL

TYPE

" MIN

DEFL

BASE

TYPE

ISOL

TYPE

" MIN

DEFL

BASE

TYPE

ISOL

TYPE

" MIN

DEFL

BASE

TYPE

ISOL

TYPE

" MIN

DEFL

BASE

TYPE

ISOL

TYPE

(")MIN

DEFL

ROOF VENTILATORS

ABOVE OCUPIED AREAS:

5 HP AND

OVER

- - - CB S 1.0 CB S 1.0 CB S 1.0 CB S 1.0

CENTRIFUGAL BLOWERS

UP TO 50 HP:

UP TO 200

RPM

B N 0.3 B S 2.5 B S 2.5 B S 3.5 B S 3.5

201-300 RPM B N 0.3 B S 1.7 B S 2.5 B S 2.5 B S 3.5

301-500 RPM B N 0.3 B S 1.7 B S 1.7 B S 2.5 B S 3.5

501 RPM AND

OVER

B N 0.3 B S 1.0 B S 1.0 B S 1.7 B S 2.5

60 HP AND OVER:

300 RPM B S 1.7 I S 2.5 I S 3.5 I S 3.5 I S 3.5

301-500 RPM B S 1.7 I S 1.7 I S 2.5 I S 3.5 I S 3.5

501 RPM AND

OVER

B S 1.0 I S 1.7 I S 1.7 I S 2.5 I S 2.5

- - - E N D - -

15200-9

SELECTION GUIDE FOR VIBRATION ISOLATORS

ON GRADE 20FT FLOOR SPAN 30FT FLOOR SPAN 40FT FLOOR SPAN 50FT FLOOR SPAN

EQUIPMENT BAS

E

TYP

E

ISOL

TYPE

MIN

DEF

L

BAS

E

TYP

E

ISOL

TYPE

MIN

DEF

L

BASE

TYPE

ISOL

TYPE

MIN

DEF

L

BAS

E

TYP

E

ISOL

TYPE

MIN

DEF

L

BAS

E

TYP

E

ISOL

TYPE

MIN

DEF

L

PUMPS

CLOSE

COUPLED

UP TO

1-/2

HP

--- --- --- D,L, W

--- --- D,L, W

--- --- D,L, W

--- --- D,L, W

2 HP

OVER

--- --- I S 1.0 I S 1.0 I S 1.7 I S 1.7

BASE

MOUNTED

UP TO

10 HP

--- --- I S 1.0 I S 1.0 I S 1.7 I S 1.7

ROOF VENTILTORS

ABOVE OCCUPIED AREAS:

5 HP & OVER --- --- --- CB S 1.0 CB S 1.0 CB S 1.0 CB S 1.0

CENTRIFUGAL BLOWERS

UP TO 50 HP:

UP TO 200 RPM B N 0.3 B S 2.5 B S 2.5 B S 3.5 B S 3.5

201 - 300 RPM B N 0.3 B S 1.7 B S 2.5 B S 2.5 B S 3.5

301 - 500 RPM B N 0.3 B S 1.7 B S 1.7 B S 2.5 B S 3.5

501 RPM & OVER B N 0.3 B S 1.0 B S 1.0 B S 1.7 B S 2.5

60 HP & OVER:

UP TO 300 RPM B S 1.7 I S 2.5 I S 3.5 I S 3.5 I S 3.5

301 - 500 RPM B S 1.7 I S 1.7 I S 2.5 I S 3.5 I S 3.5

501 RPM & OVER B S 1.0 I S 1.7 I S 1.7 I S 2.5 I S 2.5

15200-10

AIR HANDLING UNIT PACKAGES

SUSPENDED:

FLOOR MOUNTED:

UP THRU 5 HP --- D --- --- S 1.0 --- S 1.0 --- S 1.0 --- S 1.0

7-1/2 HP & OVER:

UP TO 500 RPM --- D --- R S,TH

R

1.7 R S,TH

R

1.7 R S,TH

R

1.7 R S,TH

R

1.7

501 RPM & OVER --- D --- --- S,TH

R

1.0 --- S,TH

R

1.0 R S,TH

R

1.7 R S,TH

R

1.7

IN-LINE CENTRIFUGAL AND VANE AXIAL FANS, FLOOR MOUNTED: (APR 9)

UP THRU 50 HP:

UP TO 300 RPM --- D --- R S 2.5 R S 2.5 R S 2.5 R S 3.5

301 - 500 RPM --- D --- R S 1.7 R S 1.7 R S 2.5 R S 2.5

501 - & OVER --- D --- --- S 1.0 --- S 1.0 R S 1.7 R S 2.5

60 HP AND OVER:

301 - 500 RPM R S 1.0 R S 1.7 R S 1.7 R S 2.5 R S 3.5

501 RPM & OVER R S 1.0 R S 1.7…