233439 - High-Volume_Low-Speed Fans.pdf

Rehabilitate Aircraft Hangar USDAAPHIS_MAB

USDA APHIS PPQ Moore Airfield 2025

Edinburg, TX 100%

HIGH-VOLUME, LOW-SPEED FANS 233439 - 1

SECTION 233439 - HIGH-VOLUME, LOW-SPEED FANS

PART 1 - GENERAL

1.1 SUMMARY

A. Section includes high-volume, low-speed fans.

1.2 DEFINITIONS

A. HVLS - High volume, low speed.

1.3 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Shop Drawings:

1. Include plans, elevations, sections, and mounting details.

2. Include details of equipment assemblies. Show dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection.

3. Include diagrams for power, signal, and control wiring.

1.4 INFORMATIONAL SUBMITTALS

A. Field quality-control reports.

1.5 CLOSEOUT SUBMITTALS

A. Operation and maintenance data.

1.6 WARRANTY

A. Warranty: Manufacturer and Installer agree to repair or replace components of fans that fail in materials or workmanship within specified warranty period.

1. Warranty Period:

a. For Motor, Including Controls: Five year(s) from date of Substantial Completion.

b. For Parts, Including Blades and Hub: Five year(s) from date of Substantial Completion.

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c. For Labor: One year(s) from date of Substantial Completion.

PART 2 - PRODUCTS

2.1 PERFORMANCE REQUIREMENTS

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

B. UL Compliance: Listed and labeled to UL 507.

C. CSA Compliance: Listed and labeled to CSA C22.2, No. 113.

D. Comply with NFPA 13 requirements for HVLS fans.

E. AMCA Compliance:

1. Test HVLS fans according to AMCA 230.

2. Certify HVLS fan performance according to AMCA 211.

F. Performance Data: Comply with ANSI 230 test procedure standard, based on five rating points: 20-, 40-, 60-, 80-, and 100-percent of maximum speed. Comply with AMCA 211 for publication of performance data.

2.2 MANUFACTURERS

A. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

1. Greenheck Fan Corp.

2. Big Ass Fan Company

3. MacroAir

B. Source Limitations: Obtain HVLS fans from single source from single manufacturer.

2.3 HIGH-VOLUME, LOW-SPEED FANS

A. Description: Factory-assembled and -tested horizontal, non-ducted fan unit, consisting of large-diameter blade set, direct-drive electric motor, with variable-speed motor controller.

1. Provide fan designed to circulate large air volume, vertically, at low velocity.

2. Maximum Operating Temperature: 140 deg F.

3. Frame:

a. Material: Aluminum

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1) Finish: Powdercoat or Anodized.

4. Diameter: 20 feet.

5. Blades: Airfoil type.

a. Quantity: 8.

b. Material: Aluminum.

1) Blade Finish: Anodized.

6. Motor: integral to fan frame.

7. Wiring and Controls Enclosure:

a. NEMA 250, Class 1.

b. Material: Aluminum.

1) Enclosure Finish: Powdercoat or Anodized.

c. Grounded.

8. Controls: Provide wall-mounted keypad equal to BAFCon

a. Provide variable speed motor controller.

9. Standard Mounting Bracket: Steel beam/steel angle.

2.4 INSTALLATION OF HIGH-VOLUME LOW-SPEED FANS

A. Examine conditions for compliance with requirements for installation tolerances and other conditions affecting HVLS fan performance, maintenance, and operations.

B. Fan locations indicated on Drawings are approximate. Determine exact locations before roughing-in for mounting, control, and electrical connections.

C. Install fan according to manufacturer's published instructions.

D. Comply with NECA 1 and NFPA 70.

E. Comply with NFPA 13 for installation of HVLS fans and maximum allowable fan diameter. Center HVLS fans between four adjacent sprinklers. Minimum vertical clearance from HVLS fan to sprinkler deflector is 3 feet.

F. Comply with NFPA 72 and interlock HVLS fans to shut down upon receiving an alarm from fire alarm system.

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G. Equipment Mounting:

1. Anchor fan to building structure with manufacturer's recommended mounting bracket for installed condition.

H. Install unit to permit access for maintenance.

I. Install parts and accessories shipped loose.

J. Engage a factory-authorized service representative to perform startup service.

1. Complete installation and startup checks according to manufacturer's written instructions.

2. Verify that fan is secure on mountings and supporting devices and that connections to electrical systems are complete. Verify that proper thermal-overload protection is installed in motors, controllers, and switches.

3. Verify proper motor rotation direction and free fan rotation.

4. Check bearing and gearbox lubrication.

5. Verify proper fan rotation. Set rotation selector to blow vertically downward during heating season and vertically upward during cooling season.

2.5 ELECTRICAL CONNECTIONS

A. Connect wiring according to Section 260519 "Low-Voltage Electrical Power Conductors and Cables."

B. Ground equipment according to Section 260526 "Grounding and Bonding for Electrical Systems."

C. Install electrical devices furnished by manufacturer, but not factory mounted, according to NFPA 70 and NECA 1.

D. Install nameplate for each electrical connection, indicating electrical equipment designation and circuit number feeding connection.

1. Nameplate shall be laminated acrylic or melamine plastic signs with a black background and engraved white letters at least 1/2 inch (13 mm) high.

E. Install power wiring to field-mounted electrical devices, furnished by fan manufacturer, but not factory mounted.

2.6 CONTROL CONNECTIONS

A. Connect control wiring to field-mounted control devices.

B. Connect control interlock wiring between HVLS fan and other equipment to provide a complete and functioning system.

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C. Connect control wiring between fan unit control interface and control system to provide remote control and monitoring.

D. Install control devices furnished by manufacturer, but not factory mounted.

E. Install control wiring to field-mounted control devices, furnished by fan manufacturer, but not factory mounted.

F. Protect installed units from damage caused by other work.

2.7 FIELD QUALITY CONTROL

A. Testing Agency, Contractor Engaged: Engage a qualified testing agency to perform tests and inspections.

B. Perform the following tests and inspections with the assistance of a factory-authorized service representative:

1. Fan Operational Test: After electrical circuitry has been energized, start units to confirm proper motor rotation and unit operation.

2. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment.

C. Fan or components will be considered defective if fan or components do not pass tests and inspections.

D. Prepare and submit test and inspection reports.

2.8 ADJUSTING

A. Comply with requirements in Section 230593 "Testing, Adjusting, and Balancing for HVAC" for air-handling system testing, adjusting, and balancing.

2.9 CLEANING

A. Clean equipment externally; remove coatings applied for protection during shipping and storage, foreign material, and oily residue according to manufacturer's written instructions. Following manufacturer's cleaning procedures, and clean with manufacturer-recommended cleaning products.

2.10 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain HVLS fans.

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END OF SECTION 233439