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Nortec Airfog Series Installation Manual

Atomizing humidifier
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AIRFOG
Series
TM
Atomizing
Humidifier
Installation Manual
2008-04-11
1502247-C

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Summary of Contents for Nortec Airfog Series

  • Page 1 AIRFOG Series Atomizing Humidifier Installation Manual 2008-04-11 1502247-C...

  • Page 2: Proprietary Notice

    PROPRIETARY NOTICE This document and the information disclosed herein are proprietary data of WALTER MEIER LTD. Neither this document nor the information contained herein shall be reproduced used, or disclosed to others without the written authorization of WALTER MEIER LTD., except to the extent required for installation or maintenance of recipient’s equipment.

  • Page 3: Table Of Contents

    Subject 10-00 INTRODUCTION INTRODUCTION............2 AIRFOG DEFINITION.
  • Page 4 10-40 SHUT-DOWN PROCEDURE AFE, MINI, AND OCTO SHUT DOWN PROCEDURES......36 10-50 MAINTENANCE MAINTENANCE ............38 SEASONAL MAINTENANCE .

  • Page 5: List Of Figures

    Figure 10-10 INSTALLATION PROCEDURES Figure 1. Typical Nozzle Layout for Wall Mounted System ......9 Figure 2. Multi Zone Layout .

  • Page 6: List Of Tables

    Table 10-60 TROUBLESHOOTING Table 1. Troubleshooting ..........42 10-70 SPARE PARTS Table 1.
  • Page 7 THIS PAGE INTENTIONALLY LEFT BLANK 2008-04-11...
  • Page 8 10-00 INTRODUCTION 10-00 Page 1 2008-04-11...

  • Page 9: Introduction

    1. INTRODUCTION Prior to installing any AIRFOG product carefully READ through this entire guide, it contains valuable information, which will assist in all aspects of the installation. A. AIRFOG DEFINITION NORTEC AIRFOG systems use the nozzle humidification technology of injecting droplets of cold water directly into the air.

  • Page 10: General Airfog Technical Considerations

    Since AFE nozzle systems use a zero psig water pressure feed network, the water feed system and nozzles must be horizontal and at the same height as the water pressure reduction regulator (vacuum valve). Valleys or dips in altitude will adversely affect performance and in extreme cases will prevent the nozzles from producing any output.

  • Page 11: Older Nortec Airfog System Components

    solution, system reliability is increased, maintenance is possible without shutting down all zones, and capital cost is often reduced. (2) It is recommended that air free of oil and moisture (control quality air) be used with AIRFOG systems. All air compressors will produce moisture, which must be removed using a refrigerated air dryer.
  • Page 12 suppliers. Nails, screws, bolts, threaded rods, anchors, rivets etc. to attach mounting brackets to the structure. The fasteners used will depend on the material used in the mounting surface. Insulation for the cold water pipe feeding the system is required to prevent water vapor from condensing and dripping on other structures, machines, personnel or materials.
  • Page 13 THIS PAGE INTENTIONALLY LEFT BLANK 10-00 Page 6 2008-04-11...

  • Page 14: Installation

    10-10 INSTALLATION 10-10 Page 7 2008-04-11...

  • Page 15: Nozzle System Layout

    1. INSTALLATION A. NOZZLE SYSTEM LAYOUT If a drawing for the proposed system was not supplied, then it is recommended that one be created prior to installing the system. With reference to the AIRFOG Engineering Manual, review the site where the nozzle system is to be installed. The location of equipment, lights, pillars and other structures should be drawn on the floor plans.

  • Page 16: Figure 1. Typical Nozzle Layout For Wall Mounted System

    Figure 1. Typical Nozzle Layout for Wall Mounted System 10-10 Page 9 2008-04-11...

  • Page 17: Figure 2. Multi Zone Layout

    Figure 2. Multi Zone Layout 10-10 Page 10 2008-04-11...

  • Page 18: Zones

    2. ZONES A. INTRODUCTION It may be necessary to break down the space to be humidified into zones. Limitation of the control devices and maximum run of feed piping may indicate the need for multiple zones. Refer to the Engineering manual for detailed limitation of components.

  • Page 19: Figure 3. Water And Air Line Pressure Control

    Figure 3. Water and Air Line Pressure Figure 4. Nozzle to Bracket Interface Control Figure 5. AFE Nozzle Ceiling Mounting 10-10 Page 12 2008-04-11...

  • Page 20: Connecting Nozzles

    E. CONNECTING NOZZLES All the supplied nozzles have two inlet ports with push in, quick release style fittings as shown in Figure 6 Quick Release Fittings. These fittings are only designed for use with 1/4” O.D. plastic tubing. If other than NORTEC supplied tubing is to be used, it must be a high grade uniform tubing from a reputable supplier.

  • Page 21: Vacuum Valve

    G. VACUUM VALVE The vacuum valve must be centrally located so there are approximately an equal number of nozzles being fed from each of its two output ports (one on the left side and the other on the right side). There is a mounting bracket supplied with each vacuum valve.
  • Page 22 regulator to have an output of 50 psig. The pilot air pressure range is from 0 to 70 psig. (2) The four ports on the pilot operated air regulator are the pilot air pressure input from the control panel, the primary air supply input feed, the output air feed to the nozzles and to gauge port used to feed pilot signal to the water regulator.

  • Page 23: Vacuum Valve Operation Figure 9. Vacuum Valve Interfaces

    Figure 8. Vacuum Valve Operation Figure 9. Vacuum Valve Interfaces Figure 10. Pilot Air Regulator Figure 11. Pilot Air Regulator Installation 10-10 Page 16 2008-04-11...

  • Page 24: Primary Air Pressure Control

    PRIMARY AIR PRESSURE CONTROL The primary air pressure control section (with the shutoff valve) is connected to the air compressor or the compressed air source as specified in the Designer produced drawings. See Figure 12 Primary Air Pressure Control Section. J.

  • Page 25: Figure 12. Primary Air Pressure Control Section

    Figure 12. Primary Air Pressure Control Figure 13. Primary Water Pressure Control Section Section Figure 14. Control Panel Figure 15. Control Panel Terminal Strip Interfaces 10-10 Page 18 2008-04-11...

  • Page 26: Pilot Lines

    M. PILOT LINES All air pressure lines connecting to the control panel must be 1/4” O.D. plastic tubing rated for 150 psig. Figure 16 Schematic Plumbing Layout illustrates the proper connections of the air supply to and from the control panel to the vacuum valve and the pilot air regulator.
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  • Page 28: Mini & Octo Installation

    10-20 MINI & OCTO INSTALLATION 10-20 Page 21 2008-04-11...

  • Page 29: Afe Self Contained Airfog Systems

    1. AFE SELF CONTAINED AIRFOG SYSTEMS A. AFE MINI SYSTEMS AFE MINI systems are self-contained packaged systems that include all necessary components. They require the following connections: 3/8” O.D. plastic or soft copper water supply line rated at a minimum of 25 psig.

  • Page 30: Mini Installations Figure 2. Plumbing End Connections

    Figure 1. Mini Installations Figure 2. Plumbing End Connections 10-20 Page 23 2008-04-11...

  • Page 31: Afe Octo Systems

    B. AFE OCTO SYSTEMS Octo systems are partially self contained and are between the simple Mini self- contained installation and the modular AFE systems. The Designer’s drawings and parts list will define the configuration. The only installation difference between the full modular system and the Octo is that the vacuum valve and pilot air regulator are located inside the Octo case as illustrated in Figure 3 Octo Layout and Interfaces.

  • Page 32: Octo Layout With Interfaces Figure 4. Octo Spray Pattern

    Figure 3. Octo Layout with Interfaces Mounting using threaded rods requires installing field supplied 3/8” NC supporting rods from the ceiling, raising the unit up into location and securing it to the support rods using the supplied washers and nuts. Both water and air lines should have an isolation valve installed near the unit as illustrated in Figure 6 Octo Air And Water Interfaces.
  • Page 33 Control Panel installation for standard Octo hardware is explained in the under Control Panel section. (10) The nozzles on the Octo units are pointed straight forward when shipped but these can be oriented in any direction that will not have the plume strike a solid object or another plume for at least 16 feet.

  • Page 34: Figure 5. Ceiling Mounting Of Octo

    Figure 5. Ceiling Mounting of Octo Figure 6. Octo Air and Water Interfaces 10-20 Page 27 2008-04-11...

  • Page 35: Figure 7. Four Octo Units With A Single Control Panel

    Figure 7. Four Octo Units with a Single Control Panel Figure 8. AFE Octo Nozzle Spray Pattern 10-20 Page 28 2008-04-11...

  • Page 36: Start-Up Procedure

    10-30 START-UP PROCEDURE 10-30 Page 29 2008-04-11...

  • Page 37: Afe, Mini, And Octo Start-Up Procedures

    1. AFE, MINI, AND OCTO START-UP PROCEDURES A. INTRODUCTION The operator must make reference to Figure 1 Typical Nozzle Layout when following these instructions. Prior to startup, ensure the following: All components have been visually checked for proper connections. All supply and feed lines have been cleaned. The on/off valve of the primary water pressure control section is OFF.

  • Page 38: Self Cleaning Cycle Adjustment

    Adjust the water regulator valve in the primary water pressure control section until the gauge reads 25 psig. The pressure regulator on the vacuum valve should be adjusted to read between 5 and 7 psig. Manually depressing the thumb screw on top of the vacuum valve will permit water to flow into the pipes and fill them.

  • Page 39: Setting The System For Normal Operation

    If the timer were set as in the above examples, the system would run for 4 hours, shut off for 2 minutes, run for another 4 hours, shut off for 2 minutes, and so on and so forth. The humidistat takes precedence over the timer for shutting down the system. If the humidistat reaches its set point, it will shut the system off regardless of the timer to prevent over humidifying the space.

  • Page 40: Figure 1. Capacity Output Va. Vacuum Valve Adjustment

    Figure 1. Capacity Output vs. Vacuum Valve Adjustment Figure 2. AFE Capacity Chart 10-30 Page 33 2008-04-11...
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  • Page 42: Shut-Down Procedure

    10-40 SHUT-DOWN PROCEDURE 10-40 Page 35 2008-04-11...

  • Page 43: Afe, Mini, And Octo Shut Down Procedures

    1. AFE, MINI, AND OCTO SHUT DOWN PROCEDURES A. Controlled system shutdowns are conducted for either maintenance (scheduled or repair) or long term seasonal reasons. If the shutdown is for short term maintenance then it may be possible to shorten this full procedure. B.

  • Page 44: Maintenance

    10-50 MAINTENANCE 10-50 Page 37 2008-04-11...

  • Page 45: Seasonal Maintenance

    1. MAINTENANCE A. The two most probable maintenance problems are: The accumulation of dirt and mineral deposits in/on the nozzle Air and water leaks that may be due to marginal workmanship during installation but not obvious until after many hours of operations. B.

  • Page 46: Unscheduled Maintenance

    C. Repair the identified problems and verify the system is fully operational using the procedure described in the Start Up section of this guide. 4. UNSCHEDULED MAINTENANCE A. Normally an unscheduled maintenance activity is initiated by an observation of a leak or other failure.
  • Page 47 a visual difference in the output of the nozzles as more tension is applied to the spring. Be sure not to press down on the thumb wheel while turning it. Release the thumb wheel tension and, once again, there should be a noticeable change in the nozzle output.

  • Page 48: Troubleshooting

    10-60 TROUBLESHOOTING 10-60 Page 41 2008-04-11...

  • Page 49: Troubleshooting

    1. TROUBLESHOOTING Part Possible Failure Vacuum Valve Diaphragm Failure Pilot Safety Regulator Diaphragm Ripped Valve Seat O-Ring Other O-rings Cracked Housing Blockage Pilot Air Damaged Diaphragm Regulator Stuck Closed Or Open Pilot Water Damaged Diaphragm Regulator Stuck Closed Or Open Table 1.
  • Page 50 Solenoid Valve Burnt Coil Blocked Stuck Closed Or Open Timer Wrong Timer Settings Burnt Timer Panel Damaged Diaphragm Regulators AFE Nozzle Stuck Cleaning Needle Nozzle Drips 10-60 Page 43 2008-04-11 Valve does not activate. No pressure leaving the valve. Dirty plunger. System will not come on.
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  • Page 52: Spare Parts

    10-70 SPARE PARTS 10-70 Page 45 2008-04-11...

  • Page 53: Spare Parts

    1. SPARE PARTS A. Typically some spare parts are ordered with an AIRFOG system. These parts and kits are to be retained in some safe location in a workshop for immediate access. It is recommended that spare parts and repair kits be replaced as soon as they are consumed.

  • Page 54: Figure 1. Octo Exploded View

    Figure 1. Octo Exploded View 10-70 Page 47 2008-04-11...

  • Page 55: Table 2. Octo Spare Parts

    Item Part # Description Octo Vacuum Valve (See 1608000 Exploded View) 1609209 AFE Nozzle (See Exploded View) 1603064 3-Way Solenoid Valve 24 VAC Replacement Kit 1603020 On/Off Switch Assembly 1603021 Pilot Lamp Assembly 1603001 Air Regulator Panel Mount 1603118 Repair Kit for 1603001 Air Regulator 1603050 Repeat Cycle Timer...
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  • Page 57: Figure 2. Afe Nozzle Exploded View

    ITEM # PART # DESCRIPTION 1603120 AFE Nozzle Repair Kit 1604040 Cleaning Needle 1604039 Piston Figure 2. AFE Nozzle Exploded View Table 3. AFE Nozzle Spare Parts O-Ring Seal Flat Washer Retaining Clip SST O-Ring Valve Seat Piston Seal Rod Seal 10-70 Page 50 2008-04-11...

  • Page 58: Figure 3. Vacuum Valve Exploded View

    Figure 3. Vacuum Valve Exploded View 10-70 Page 51 2008-04-11...

  • Page 59: Table 4. Vacuum Valve Spare Parts

    ITEM # PART # DESCRIPTION 1603122 Vacuum Valve Repair Kit Washer Self Sealing Polypropylene Disc Diaphragm 1/16 Neoprene O-Ring Body Valve #118 O-Ring 1603002 Panel Mount Water Reg. 1/4” P 1603119 Repair Kit for 1603002 Water Regulator 1603114 Panel Mount Water Reg. 1/4” P SST for DI 1603008 Pressure Gauge 1-1/2”...

  • Page 60: Figure 4. Control Panel Exploded View

    Figure 4. Control Panel Exploded View 10-70 Page 53 2008-04-11...

  • Page 61: Table 5. Control Panel Spare Parts

    ITEM # PART # DESCRIPTION 1600027 Valve 4-way 24 Vac Solenoid Pressure Switch, Screw-on (Modulating Contol 1603081 Panel Only) E/P Converter Module (Modulating Control 1506260 Panel Only) 1603050 Repeat Cycle Timer 1603200 Pressure Gauge Panel MTG Bars 1493096 Lamp Green Indicator 1453001 Switch On/Off 1603023...
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  • Page 63: Warranty

    F.O.B. THE COMPANY’s factory, providing the defective part(s) is returned freight prepaid by the customer. Parts used for repairs are warranted for the balance of the term of the warranty on the original humidifier or 90 days, whichever is longer.
  • Page 64 U.S.A. Walter Meier (Climate USA) Inc. 826 Proctor Avenue Ogdensburg, NY 13669 TEL: 1-866-NORTEC-1 EMAIL: northamerica.climate@waltermeier.com WEBSITE: www.humidity.com CANADA Walter Meier (Climate Canada) Ltd. 2740 Fenton Road Ottawa, ON K1T 3T7 TEL: 1-866-NORTEC-1 FAX: (613) 822-7964 Authorized Agent:...

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