Tab 6 AHUs.pdf

TAB 6

AIR-HANDLING UNITS

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Submittal Specification Air Structure Pressurization Unit

Arizon Order No.: A10229 University of Wisconsin Oshkosh

11880 Dorsett Rd, St Louis, MO 63043 | Main: (800) 325.1303 | Fax: (314) 739.1556 www.arizoncompanies.com

1.0 GENERAL

A. Related Documents: The Air Handling Unit(s) (hereafter referred to as “Unit”, “AHU” or “Equipment”) is in general accordance with our interpretation of the drawings, schedules, and specifications listed by Ari-zon Structures in its Quotation, furthermore, as particularly described in this Submittal prepared by Arizon Structures for approval by the Customer.

B. Design Criteria/Concept: Drawings and schedules indicate size, profile and dimensional requirements of the Equipment and are based upon the Manufacturer’s specific raw material and components. Fabrication engineering for the Equipment is the responsibility of Arizon Structures.

C. Site Condition Verification: Verification of the site conditions is the responsibility of the Installer. The Customer will be responsible for and verify that: the unit operating weights do not exceed the site structural limits, the unit sound performance does not exceed specification requirements, all local and other codes are met, electrical and other utility codes and/or requirements are met up to the units connections, and utilities are available for proper operation of the Equipment. The Customer is to verify to Arizon Structures, as a part of Approval of the Submittal, the following items: piping orientation and dimensions, and utility con-nection locations. Specific weights and dimensions are approximate or within Arizon Structures reasonable tolerances. Should the Customer require specific dimensions or weights, this must be requested by the Cus-tomer, and accepted by Arizon Structures in writing.

D. Site Code Verification: The Customer is responsible for verifying that the Equipment as specified herein will meet local, state, and national codes as applicable. Arizon Structures is not responsible for meeting codes which are not specifically agreed to in this submittal.

2.0 INFLATION UNIT

A. Unit Description:

1. Location: Outdoor unit.

2. Unit Sections: Referenced unit drawings in this submittal for applicable sections.

B. Unit Housing:

1. General: Reference unit data sheet and construction detail drawings for specific materials.

2. Unit Base: Base frame constructed with a formed channel around unit perimeter and all section splits. Cross members will be located as required to support internal components and personnel service areas. Each unit section (with the exception of outlet) will be equipped with a minimum of 4 lifting lugs.

3. Unit Floor: Floor will be flat non-sloping, with overlapping and mechanically fastened seams.

Floor will be insulated with 6” insulation protected with solid sheet metal.

4. Unit Wall Panels: Reference unit data sheet and construction detail drawings for specific materi-als. All exterior seams will be sealed with sealant.

5. Unit Roof Panels: Reference unit data sheet and construction detail drawings for specific materi-als. All exterior seams will be sealed with sealant. Roof will be Sloped.

6. Access Doors: 2” insulated double wall with aluminum extrusion frame, riveted stainless steel butt hinges; single gasket air seal. Exterior doors will be supplied with the following options: drip guards above the top of the door, hasp and staple with pad lock.

7. Exterior Finish: The unit exterior surfaces will be wiped with cleaning solution to remove oils and markings. All exterior surfaces will be spray painted with one coat of air-dry gray enamel to meet ASTM B117 250 hour salt spray test.

8. Shipping sections: If required, units will be shipped in section quantity and sizes as shown on at-tached unit drawings. Section openings will be framed as required for structural integrity.

C. Inlet Section:

Arizon Order No.: A10229 University of Wisconsin Oshkosh

1. Hoods: Rain hoods will be provided on exterior openings. The rain hoods will be fabricated and finished from materials similar to the unit casing.

2. Backdraft Dampers: Mill finish dampers will be furnished with extruded aluminum frame and ex-truded aluminum blades. Dampers will have extruded vinyl edge seals and bird screen. Leakage performance per attached manufacturer’s cut sheets and in accordance with AMCA 500.

D. Electrical Interface:

1. General: All wire will be run in EMT conduit. Minimum wire size is No 12 gauge stranded THHN. Conduit and conductors will be sized in accordance with latest edition of the NEC. All wiring enclosures will be a minimum of NEMA-3R on the unit exterior and NEMA-1 on the unit interior unless indicated otherwise elsewhere. Wiring items will be factory installed by Arizon Structures as indicated on attached electrical drawings. Reference attached unit drawings for elec-trical component locations.

2. See electrical diagrams for required power connections / quantity. All necessary controls and mo-tor VFD’s are provided, mounted and wired. All branch circuits to be protected with manual reset circuit breakers or fuses as shown on attached electrical drawings.

E. Piping

1. Field connections will be made at the individual service connection locations, any necessary cas-ing penetrations is by others.

2. Pipe Insulation: Piping insulation, if required, furnished and installed by others in the field.

F. Unit Operation

1. Primary inflation will be obtained through the use of a dedicated Make-Up Air Pressurization Fan sized to pressurize the structure to its maximum operating pressure.

2. An integral building pressure control system will provide the input signal via manufacturer sup-plied, mounted and wired pressure sensors to vary the speed of the Make-Up Air Pressurization Fan through the use of a variable frequency drive (VFD). VFD will include a factory touch pad to change the building pressure set point. The Pressurization Fan will deliver more or less make-up air as needed to overcome changes in building pressure automatically.

3. Back-Up inflation will be provided through the use of a dedicated Back-Up Air Pressurization Fan sized to pressurize the structure to its maximum operating pressure. The Back-Up Pressurization Fan will be included in the main unit, eliminating the need for a separate opening in the building.

The Back-Up Air Pressurization System has its own redundant pressure controls, and wired to a separate power hookup, allowing for field connection to remote auxiliary power source such as a generator.

4. The Back-Up Air Pressurization Fan will automatically start upon a drop in building pressure be-low the pre-determined set point, or upon activation of the backup generator.

5. The make-up air intake will include rain hoods equipped with aluminum back draft dampers and wire mesh bird screen to minimize air loss in the event of equipment shut-down.

6. The heating system will consist of an indirect fired stainless steel heat exchanger with modulating burner and flue extended through the unit exterior. The heating system will include a modulating return air thermostat and modulating heat output controller and/or valve.

7. Building Circulation will be provided through the use of dedicated Circulation Fans. The circula-tion fans will be active during periods of heating, including a heater cool-down period after the call for heat is satisfied.

8. The Back-Up Air Pressurization Fan(s) will to be connected to a natural gas or propane powered generator with an auto transfer switch to automatically start the Back-Up Air Pressurization Fan

Arizon Order No.: A10229 University of Wisconsin Oshkosh upon a loss of power. The generator will require a weekly self-test cycle. The generator will be provided and wired to the Back-Up Air Pressurization Fan (by others).

9. See Electrical drawings to see if generator and/or transfer switch are provided by Arizon or Cus-tomer.

G. Inflation & Back-Up Fan Assembly

1. Fan: The fan shall be a direct drive, plenum style fan. Reference attached unit data sheets and fan curves for design and performance data.

2. Motor: The motor shall be a premium or energy efficient, UL listed, NEMA ODP or TEFC design “B” with Class “F” insulation and service factor of 115%. The motor will be mounted directly to the fan. Motor will be suitable for use with a VFD.

H. Indirect Fired Heat

1. The Heat Exchanger shall be a drum and tube style heat exchanger.

2. Unit will be factory wired, pre-piped, factory tested, and assembled to the extent that shipping will allow. Gas train will be constructed to meet Factory Mutual.

3. Burner to be natural gas and forced draft. Turn down ratio of the burner will be minimum 3:1 full modulation with low fire control.

4. All gas train components will be selected to operate at a 2 PSIG to 5 PSIG gas pressure. In-stalling contractor or end user shall be responsible for adjustments of gas pressure within this range. Provide site gas pressure with Submittal approval.

5. Controls: Air flow switches, high temperature limit, ignition transformer, main and pilot pressure regulators, control voltage transformer, electronic flame supervision, manual main and pilot gas shut off valve, main gas automatic safety shut-off valves, modulating gas valve able to work with a 0-10vdc signal. See wiring drawing for details.

6. The entire primary heat surface and header will be 400 Series stainless steel; the secondary heat transfer surface will be stainless steel. The heat exchanger design will permit the unrestricted lat-eral and peripheral expansion during the heating and cooling cycle.

7. The gas burner will be of the power type, complete with integral combustion air blower and mo-tor, combustion air proving switch and removable pilot assembly. The combustion air damper will be interlocked with the gas control valve to insure a proper gas/ air mixture throughout the com-plete range of operation. Burner and controls will be arranged for full modulation with low fire start control and a 3:1 minimum turndown ratio. The factory wired and piped valve train will be mounted in a weatherproof compartment and be complete with: low pressure regulator, motorized gas valve, main manual test firing shut off valve, pilot shut off valve, pilot pressure regulator, pilot automatic shut off valve, pilot test firing shut off valve.

8. UL-approved double-wall flue will be provided and shall be shipped loose for field installation by others.

3.0 MANUFACTURER QUALITY ASSURANCE PROCEDURES

A. The Manufacturer provides the following quality assurance procedures.

1. Factory Testing: The following tests will be performed prior to shipment and the report will be fur-nished to the engineer.

a. Electrical and Pneumatic Component Integrity Test: All electrical and pneumatic components will be operated to assure that they are functioning properly. All electrical circuits will be hi-pot tested to check insulation integrity.

Arizon Order No.: A10229 University of Wisconsin Oshkosh

b. Fan Assembly Test: The complete fan assembly will be re-balanced, if necessary, at the Arizon Structures factory to ensure smooth fan operation.

c. Pipe Leak Test: Piping installed by Arizon Structures will be pneumatically leak tested. Ar-izon Structures does not guarantee the piping to be leak free after shipment. The piping must be retested for leaks in the field by the Customer before connecting services. Any leak-age found in the field is to be repaired at the Customer’s expense. Do not hook up gas or op-erate burner until gas piping has been checked.

B. QA Inspection:

1. Arizon Structures Quality Assurance personnel inspect the unit during manufacturing and prior to shipment to assure the equipment meets this submittal and Arizon Structures Manufacturing Standards. Any defects found by Arizon Structures Quality Assurance will be corrected before shipment.

C. Shipment Preparation:

1. Dampers on exterior walls will be closed and all other openings and shipping splits will be cov-ered with plastic sheeting to protect the unit interior from infiltration of dirt and moisture during shipping. Removal of the covers is required in the field by the Customer at the Customer’s ex-pense.

2. Items shipped loose are tied down inside the unit for shipping with item quantity and locations noted on Arizon Structures shipping list.

3. Electrical connections across shipping splits are supplied with flex conduit of appropriate length to span the shipping split with a junction box for reconnection. The ends of the conduit will be wrapped in plastic to protect them from infiltration of dirt and moisture during shipping. The re-connection of the conduit and wires is required in the field by the Customer at the Customer’s ex-pense.

4. Equipment mounted on the unit exterior, including exposed non-weather proof electrical panels, will be covered with plastic for weather protection during shipment. The plastic is to be removed in the field by our Customer at the Customers expense.

5. Piping connections that extend through the unit casing will be covered with plastic caps for ship-ment. These caps are to be removed in the field by the Customer at the Customer’s expense.

6. Piping connections at shipping splits are to be reconnected in the field by the Customer at the Cus-tomer’s expense. Arizon Structures Operations and Maintenance Instructions are to be followed when reconnecting the piping. Retightening and retesting the piping at the jobsite are at our cus-tomer’s expense.

7. The unit is vacuumed to remove dirt and debris from the unit floor and drain pans. The interior of the unit is then wiped down to remove dirt and debris from the unit walls, roof, and components.

Dirt and debris scuff marks and other defects occurring during shipment or rigging at the job site, are to be repaired and corrected by the customer at the customer’s expense.

4.0 EXECUTION

A. Arizon Structures Instructions

1. Comply with Arizon Structures and our component manufactures operation, maintenance and installation manuals, including product technical bulletins and product catalog instructions.

B. Examination

Arizon Order No.: A10229 University of Wisconsin Oshkosh

1. The Installer, at its own expense, will inspect the equipment on delivery at the job site, and note any dam-age, needed repairs, missing parts, materials or components in writing on the Bill of Lading for warranty or damage claims.

C. Site Conditions/Owner Responsibilities

1. Pre site preparation: The structure that the unit will be installed upon must be level and all weights and bearing loads must be verified.

2. Attaching utilities including gas, fuel, water, electrical, etc. connections.

3. All other items required for proper operation of the Equipment pursuant to Arizon Structures instruction.

D. Installation

1. The Installer is responsible for rigging and installation of the equipment and components at the Installer’s expense. Installation includes but is not limited to the following:

a. Rigging and lifting of Equipment.

b. Removal of shipping covers and internal braces/tie downs.

c. Duct/ building connections to the Equipment.

d. Wiring of electrical connections between shipping splits of the unit.

e. Connecting of piping between shipping splits of the unit.

f. Connecting of shipping splits including gaskets, bolts, screws, sheet metal, and welding as indicated in

Arizon Structures, and component manufactures, operations and maintenance manuals.

E. Protection

1. Protect installed product and finish surfaces from damage during construction.

2. Do not operate units(s) for any purpose, temporary or permanent, until ductwork is clean, filters in place

(if any), bearings lubricated, and fan has been tested under observation by the Manufacturer.

3. Ongoing preventative maintenance must be made by Customer pursuant to the original manufacturer’s recommendations.

4. The Equipment is subject to Arizon’s Warranty or, in the case of components of the Equipment, to the original manufacturer’s warranty. Components of the Equipment include, but are not limited to fans, burners, coils, panels, electrical components, switches, humidifiers, and each of their parts in components.

5. Provide Arizon with contact information for local service company (hired by others) to perform ser-vice and maintenance for AHU equipment. If local service company and/or maintenance rec-ords/logs cannot be produced it may affect Warranty coverage of equipment.

6. Arizon factory start-up technician must be present for and perform equipment start-up services. If anyone other than Arizon’s factory technician performs start-up of the AHU it may affect Warranty coverage of equipment.

Circulation Volume [CFM] 60,000 Pressurization Fan [CFM] 8,000 Back-Up Air Fan Volume [CFM] 8,000 Supply Fan Total Pressure [in wc] 1.00 Press. Fan Total Pressure [in wc] 2.50 Supply Fan Total Pressure [in wc] 2.50

3.40 3.40

UNIT CASING SUMMARY

Nominal Length (in) 261 Base Material: 12 Ga. Bonderized - Painted Wall Outer Material: 18 Ga. Bonderized - Painted Nominal Width (in) 165 Floor Material: 16 Ga. Galvanized Wall Inner Material: None Nominal Height (in) 118 Floor Insulation: 6" R-19 Fiberglass Wall Insulation: 0.5" Foil Faced Unit Type: Outdoor Base Liner Material: 22 Ga. Galvanized HTG/CLG Section Roof Inner Material 18 Ga. Galvanized (Solid) Qty of Shipping Sections 4 Roof Outer Material: 18 Ga. Bonderized - Painted HTG/CLG Section Roof Inner Insulation 2"- 1.5# Fiberglass Est. Shipping Weight [lbs] TBD Roof Inner Material: None HTG/CLG Section Wall Inner Material 22 Ga. Galvanized (Solid)

Roof Insulation: 0.5" Foil Faced HTG/CLG Section Wall Inner Insulation 2"- 1.5# Fiberglass Note: Unit(s) ship in quantity of sections listed above and as shown on unit drawings. Dimensions do not include roof overhang or standing seams, door handles, electrical panels etc.

FAN SUMMARY

Fan Encl. Nom.

Position Manuf. Model Type Class Fan Qty CFM/ each TSP [in wc] Fan RPM BHP Motor HP Motor Qty Type RPM S.F. Notes:

Circulation Johnson Premium 42" Prop n/a 3 20,000 1.00 590 6.44 10.0 3 TEFC 1800 1.15 1, 2, 3 Pressure Greenheck 24-APM-4-100-I-75 Airfoil 1 1 8,000 2.50 1325 4.41 7.5 1 TEFC 1200 1.15 1, 2, 3 Back-Up Greenheck 24-APM-4-100-I-75 Airfoil 1 1 8,000 2.50 1325 4.41 7.5 1 TEFC 1200 1.15 1. 2

Notes:

1.) Reference attached fan curves for additional data 2.) Reference electrical data summary for motor HP, FLA, etc 3.) Motor to be 460v / 60hz / 3 phase

DAMPER/LOUVER SUMMARY

Size Position Manuf. Model W [in] H [in] Qty. CFM Vel. [FPM] Blades

Pressurization Inlet Ruskin BD2/A2 34.30 34.30 1 8,000 979 Parallel Back-up Air Inlet Ruskin BD2/A2 34.30 34.30 1 8,000 979 Parallel

INDIRECT FIRED GAS HEAT SUMMARY

Burner Capacity [MBTU/HR] Gas Flow Temp Rise Gas Gas Position Manuf. Model Qty Input Output (CFH) CFM [F] Type Pressure Notes:

Blow Thru PowerFlame CR3-G25 1 3,750 3,000 3,750 60,000 46.1 Nat. Gas 2 PSIG 2" 1, 2

Notes:

1.) Flue Included and Shipped with unit.

2.) Gas service to be 2 PSIG minimum - 5 PSIG maximum. Advise if site conditions differ from this requirement.

REV DATE BY DESCRIPTION

11880 Dorsett Rd.

St. Louis, Mo. 63043 Phone 314-739-0037 Fax 314-739-1556

Connec t.

ARIZON MODEL ARW-3000 UNIT SUMMARY

Building Pressure (Max) Building Pressure (Max)

Notes:

Backdraft style damper, no actuator required Backdraft style damper, no actuator required

Ref No.: Item No:

Class: Premium Hub Type: HD Blade Type: SC Blade Tip: VT Adjustment: MAN Rotation: RH Series: 18 Diameter: 42 inches Blades: 5 Temperature: 60 Deg. F Elevation: 0 feet Density Ratio: 1.019 Volume: 20000 ACFM Air Vel.: 2333.49 fpm Speed: 590 RPM Static Pressure: 1 in H2O Pv: 0.345 in H2O Pt: 1.518 in H2O Power Reqd.: 6.44 bhp Motor: 10 bhp Total Eff: 74.3% Power @ 0 deg. 7.28 bhp Static Eff: 49.0% Blades Required: 3.61 API Blds Req.: 0.00 Blade Load: 0.723 Tip Speed: 6487.4 fpm Deflection Angle: 58.4 deg. Pitch Number: 2.64 Entry Correction: 1.5 Tip Clearance: 0.4 inches Design Angle: 30.368 deg Exit Correction: 1 Draft:

Starting Torque: 2 Max Torque: 178 ft. lbs Torq/Bld: 36 ft. lbs Appr fan weight: 81 lbs 37 kg Bore Size: 0.1 inches WR2 65 lb-ft2 2.8 kg m2 Bushing Type: U Thrust Load: 76 lbs 34 kg Qty required: 3 Noise Levels Per Fan (Horizontal Orientation)

Sound Power Level dBA HZ 63 125 250 500 1000 2000 4000 8000

88.2 94.2 93.2 90.2 85.2 83.2 77.2 71.2 65.2

Sound Pressure Level 1 meter from fan

80.9 86.9 85.9 82.9 77.9 75.9 69.9 63.9 57.9

Sound Pressure Level 1 meter from blade tip

74.8 80.8 79.8 76.8 71.8 69.8 63.8 57.8 51.8

Estimated Sound Pressure Level Multiple Fans (1 fans at 6 ft from core)

72.2 78.2 77.2 74.2 69.2 67.2 61.2 55.2 49.2

Manual Adjustment, Heavy Duty, Standard Chord, Right Hand Rotation

Johnson Premium Fans

Forced

Fan Selected

Performance

Quantity 2 Volume (CFM) 8,000

External SP (in. wg) 2.5 Total SP (in. wg) 2.5

Operating Power (hp) 4.41 Start-Up Power (hp) 5.1

Fan RPM 1325 Max Fan RPM 1,670

Oper. Frequency (Hz) 68 Elevation (ft) 919

Start-up Temp.(F) -10 Operating Temp.(F) 60

Fan Configuration

Size 24 Class I

Arrangement 4 Rotation CW

Orientation Horizontal

Equipment Weights

Fan (LMD)(lb) 194 Motor/Drive (lb) 294 Accessories (lb) 0

Misc Fan Data

Outlet Velocity (ft/min) 1,751 Static Efficiency (%) 71

Tip Speed (ft/min) 8,497 Corner Weight A (lb) 146 Corner Weight B (lb) 146 Corner Weight C (lb) 97 Corner Weight D (lb) 97

Motor and Drives

Motor Supplier Greenheck Size (hp) 7 1/2

RPM 1170

Enclosure TEFC

Voltage 460 Cycle 60

Phase 3 Frame Size 254T

Max Frame Size 256 Location Centered

Model: 24-APM-4-100-I-75 Plenum Fan

Operating Performance

Sound Power by Octave Band

Sound Data 62.5 125 250 500 1000 2000 4000 8000 LwA dBA Sones Inlet 75 81 92 78 74 72 67 63 85 73 22

Outlet 79 84 93 86 83 78 72 68 89 77 27 LwA - A weighted sound power level, based on ANSI S1.4 dBA - A weighted sound pressure level, based on 11.5 dB attenuation per octave band at 5 ft- dBA levels are not licensed by AMCA International Sones - calculated using AMCA 301 at 5 ft

9/6/2016Printed Date:

A10229 Press FansJob:

Mark 1Mark:

24-APM-4-100-I-75Model:

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