HUNTAIR FANWALL Technology Retrofit Installation & Maintenance Manual

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9
OPERATION AND MAINTENANCE DATA
PROJECT:
LOCATION:
CONTRACTOR:
SUBMITTED BY:
MANUFACTURER:
PRODUCT:
TAGS:
DATE:
BDMC Women's & Infant Services
1B Antepartum Unit
Mesa, AZ
Comfort Systems USA SW
Climatec, Inc.
2851 W. Kathleen Rd.
Phoenix, AZ. 85053
602-944-3330
Huntair
Fanwall Technology Retrofit
Air Handling Unit
FWT
AHU – 1
8/25/11

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Summary of Contents for HUNTAIR FANWALL Technology Retrofit

  • Page 1 BDMC Women’s & Infant Services 1B Antepartum Unit LOCATION: Mesa, AZ CONTRACTOR: Comfort Systems USA SW SUBMITTED BY: Climatec, Inc. 2851 W. Kathleen Rd. Phoenix, AZ. 85053 602-944-3330 MANUFACTURER: Huntair PRODUCT: Fanwall Technology Retrofit Air Handling Unit TAGS: AHU – 1 DATE: 8/25/11...
  • Page 2 ® FANWALL Technology Retrofit INSTALLATION/MAINTENANCE GUIDE FOR YOUR SAFETY Improper installation, adjustment, alteration service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment.
  • Page 3: Table Of Contents

    STORED IN A RETRIEVAL SYSTEM, OR TRANSMITTED IN ANY FORM BY AN ELECTRONIC, MECHANICAL, PHOTOCOPYING, RECORDING MEANS OR OTHERWISE WITHOUT THE WRITTEN PERMISSION OF HUNTAIR, INC. COPYRIGHT 2011. The manufacturer reserves the right to modify the materials and specifications resulting from a continuing program of...
  • Page 4: General Description

    GENERAL DESCRIPTION GENERAL DESCRIPTION Huntair Fanwall Technology ® is a fan-array approach to air Follow all safety codes. Wear safety glasses and work handler design that that uses several smaller fans to replace gloves. one larger fan, providing design flexibility, reducing mainte- nance costs, and increasing energy savings.
  • Page 5: Ship Loose Items / Installation Tool Requirement

    Common Ship Loose Item FANWALL Installation Tools 5/16-18 WHIZ Bolts — 1/2 inch End Wrenches 5/16-18 Flange Nuts — 1/2 or 3/8 inch Socket set 1/4-20 x 3/4 Self Tapping Tek Screws — Impact Driver #10-32 x 3/8 Type F Pan Phillips Self Tapping Screws — Nut Driver Bit Set #12-24 x 1-1/2 Unslotted HWT self Tapping Tek Screw —...
  • Page 6: Installation

    SJO 90°C. c. Refer to the submittal package for other control interface connections. General Maintenance HUNTAIR’s FANWALL TECHNOLOGY ® pays careful attention given to balance in the design and construction of the units. Each unit uses standardized precision parts, and is individually spin-balanced at the factory to eliminate vibration.
  • Page 7: Demolition

    Prior to demolition of existing fan: Verify that FANWALL cube dimensions are correct and assembled array will fit inside existing air handling unit. Internal dimensions of air handler were provided to HUNTAIR by others. 1. Disconnect power to the existing fan at the main disconnect control panel.
  • Page 8: Fanwall Assembly And Installation

    FANWALL ASSEMBLY FANWALL Assembly 9. Once you have reached the correct number of columns, 5. Make sure that floor on airhandler is level and rigid. slide the second column into place next to the first 6. Determine the offset for the assembled array (from in- column as tight as possible.
  • Page 9 FANWALL ASSEMBLY FANWALL Assembly 11. Fill the void space with the specidied insulation be- tween the top of the assembled FANWALL array and the unit roof. 12.Secure the side and top blank-offs to the cell frames on both the inlet and discharge side of the FANWALL using the 5/16-18 WHIZ bolts and 5/16-18 flange nuts.
  • Page 10: Wiring

    FANWALL ASSEMBLY FANWALL Electrical Installation DANGER! Risk of Electric Shock Always disconnect power to the fan control panel Flexible Metal Conduit before maintenance. Follow all lockout and tag to motor J-Box out procedures. 1. Verify fanwall assembly install is complete. 2.
  • Page 11: Caulking

    FANWALL ASSEMBLY FANWALL Assembly 1. After wiring is completed. Caulk all inlet flanges, bolt BLANK OFF TO ROOF heads and nuts. 2. Caulk the seams between the roof and the blank-offs. Caulk the seams between the side panels and the blank- CAULK BLANK OFF PANELS BLANK OFF TO...
  • Page 12: Fan / Cone Alignment

    The cone alignment can be a tedious process as there are no tools that effectively work to align the cone. It is a hands on process to align the cone. Huntair cones have a running clearance of about 1/16" (see figure 1). AIR STRAIGHTENER b.
  • Page 13 FANWALL ASSEMBLY WHEEL/CONE ALIGNMENT SIZE 16 WHEEL WHEEL/CONE ALIGNMENT SIZE 18 WHEEL Note: Drawings not to scale...
  • Page 14 FANWALL ASSEMBLY WHEEL/CONE ALIGNMENT SIZE 20 WHEEL WHEEL/CONE ALIGNMENT SIZE 22 WHEEL Note: Drawings not to scale...
  • Page 15: Optional

    OPTIONAL Air Monitoring Option If the retrofit comes with the VFD (variable frequency drive) option follow the following step for installation of the red and blue poly tube. 1. Starting at the cones. Connect the red poly tubing to the barbed nipple on the inlet side of the cone. Con- nect the blue poly tubing to the barbed nipple on the discharge side of the cone.
  • Page 16: Maintenance

    MAINTENENCE Fanwall Option -   Fan Wheel/Motor Replacement 1. To replace a fan wheel/motor assembly, first discon- nect power to the FWT at the main control panel.   DANGER! Risk of Electrical Shock Always disconnect power to the fan control panel before maintenance.
  • Page 17 It is a hands on process to align the cone. Huntair cones have a running clearance of about 1/16" (see figure 3). b. Start by loosening the four screws that were used to hold the cone for the depth alignment.
  • Page 18: Start-Up

    START-UP CAUTION: This unit has rotating parts, high voltage, and possibly high temperature solutions or components. Safety precautions must be exercised during installa- tion, operation and maintenance. Service should only be performed by a qualified technician who has been specially trained to service air conditioning equipment. PRELIMINARY INSPECTION 1.
  • Page 19: Troubleshooting

    TROUBLESHOOTING SYMPTOM POSSIBLE CAUSE FIELD TEST REMEDY FAN WILL NOT No main power. Check main power fuses with ohm meter. Correct problem and replace fuses with size START OR RUN AT indicated on electrical diagram. Check disconnect switch. Turn to "On" position. Use volt meter to check for proper main Restore power to unit.
  • Page 20: Start-Up Inspection Report

    FWT START-UP REPORT VFD UNIT MODELS Huntair recommends that the following FWT START~UP REPORT be performed on each unit and the results filed with the appropriate facility engineering office. Unit Na m e pla te Da ta : Model No.
  • Page 21: Warranty

    (As Outlined in O & M Guide) and fan bearings. Factory Customer Service HUNTAIR offers several levels of service to its customers. - Service scheduling - Recertification or preventative maintenance scheduling - Additional manual requests or updates...
  • Page 22 ® , FANWALL TECHNOLOGY ® and FANWALL ® are registered trademarks of Huntair, Inc. HUNTAIR is a CES Group ® Company This product is covered by one or more of the following U.S. patents (5,586,861; 7,137,775; 7,179,046; 7,527,468; 7,597,534) and other pending U.S. or Canadian patent applications and/or foreign patents.

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