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AIRFOG
TM
Series
Atomizing
Humidifier
Installation Manual
2008-04-11 1502247-C
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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. All references to the NORTEC name should be taken as referring to WALTER MEIER LTD. LIABILITY NOTICE NORTEC does not accept any liab
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TABLE OF CONTENTS Subject Page 10-00 INTRODUCTION 1. INTRODUCTION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A. AIRFOG DEFINITION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 B. NORTEC AIRFOG FAMILY OF PRODUCTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 C. AFE PRINCIPLE OF OPERATION. . . . . . . . . . . . . . . . . . . . . .
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10-40 SHUT-DOWN PROCEDURE 1. AFE, MINI, AND OCTO SHUT DOWN PROCEDURES. . . . . . . . . . . . . . . . . . . . . . . . . 36 10-50 MAINTENANCE 1. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 2. SEASONAL MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38 3. SEASONAL STARTUP. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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LIST OF FIGURES Figure Page 10-10 INSTALLATION PROCEDURES Figure 1. Typical Nozzle Layout for Wall Mounted System . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 2. Multi Zone Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Figure 3. Water and Air Line Pressure Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Figure 4. Nozzle to Bracket Interface . . . . . . . . . . . . . . . . . . . . . . . . . . .
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LIST OF TABLES Table Page 10-60 TROUBLESHOOTING Table 1. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 10-70 SPARE PARTS Table 1. Rebuild Kits and General Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46 Table 2. Octo Spare Parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 Table 3. AFE Nozzle Spare Parts . . . . . . . . . . . . . . . .
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10-00 INTRODUCTION 10-00 Page 1 2008-04-11
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1. INTRODUCTION NOTE 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 (1) NORTEC AIRFOG systems use the nozzle humidification technology of injecting droplets of cold water directly into the air. This method of humidification has the following advantages over steam humidification: (a) Lower frequency of maintenance. (b) Systems are mainly mec
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(2) 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. If obstructions prevent straight level piping, the water and air network delivery pipes must be routed under the obstruction. It is vital that the
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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. Excessive amounts of water in the air lines will reduce nozzle performance, and in extreme cases will prevent the nozzle from producing any mist. Oi
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suppliers. (c) 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. (d) 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. (e) The NORTEC supplied parts should be checked against the designer’s drawings and parts list to ensure the corr
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10-10 INSTALLATION 10-10 Page 7 2008-04-11
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1. INSTALLATION A. NOZZLE SYSTEM LAYOUT (1) 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. The proper selection and location of the nozzles is very dependent upon these obstructions. Figure 1 T
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Figure 1. Typical Nozzle Layout for Wall Mounted System 10-10 Page 9 2008-04-11
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Figure 2. Multi Zone Layout 10-10 Page 10 2008-04-11
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2. ZONES A. INTRODUCTION (1) 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. Up to four zones can be controlled from one control panel, additional zones can be added with the use of a pilot air regulator acting as a volume booster for the pilot signal. See Figure 2 Multiple Zone La
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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
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E. CONNECTING NOZZLES (1) 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. (2) The NORTEC supplied fitting uses an o-ring to seal the O.D. of the tubing and finger clamps to hold it in place. Failure to use prop
