Instruction/ maintenance manual of the product Airfog Series Nortec Industries
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2008-04-11 1502247-C AIRFOG Series Atomizing Humidifier Inst allation Manual TM.
2008-04-11 PROPRIETARY NOTICE This document and the info rmation disclosed herei n are propriet ary data of W AL TER MEIER L TD. Neither this document nor the information cont ained herein shall be reproduced used, or disclosed to others without the written authoriza tion of W AL TER MEIER L TD.
2008-04-11 TABLE OF CONTENTS Subject Page 10-00 INTRODUCTION 1. INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 A. AIRFOG DEFINITION . . . . . . . . . . . . . . . . . . . .
2008-04-11 10-40 SHUT-DOWN PROCEDURE 1. AFE, MINI, AND OCTO SHUT DOWN PROCEDURES . . . . . . . . . . . . . . . . . . . . . . . . . 36 10-50 MAINTENANCE 1. MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2008-04-11 LIST OF FIGURES Figure Page 10-10 INSTALLATION PROCEDURES Figure 1. Typical Nozzle Layout for Wall Mounted System . . . . . . . . . . . . . . . . . . . . . . . . . 9 Figure 2. Multi Zone Layout . . . . . . . . . . . . . . . . . . . . . . . .
2008-04-11 LIST OF TABLES T able Page 10-60 TROUBLESHOOTING Table 1. Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2 10-70 SPARE PARTS Table 1. Rebuild Kits and General Parts . . . .
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10-00 Page 1 2008-04-11 10-00 INTRODUCTION.
10-00 Page 2 2008-04-11 1. INTRODUCTION NOTE Prior to installing any AIRFOG product carefully READ through this entire guide, it contains valuable information, which will assist in all aspe cts of the installation.
10-00 Page 3 2008-04-11 (2) Since AFE nozzle systems use a zero psig water pressure f eed network, the water feed system and nozzles must be horizontal and at the same height as the water pressure reduction regulator (vacuum valve).
10-00 Page 4 2008-04-11 solution, system reliability is increased, maintenance is possi ble 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.
10-00 Page 5 2008-04-11 suppliers. (c) Nails, screws, bolts, threaded rods, anchors, rivet s etc. to attach mounting brackets to the structure. The fasteners used will depend on t he material used in the mounting surface.
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10-10 Page 7 2008-04-11 10-10 INSTALLATION.
10-10 Page 8 2008-04-11 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 in stalled.
10-10 Page 9 2008-04-11 Figure 1. Typical Nozzle Lay out for Wall Mounte d System.
10-10 Page 10 2008-04-11 Figure 2. Multi Zone Layout.
10-10 Page 11 2008-04-11 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 maxi mum run of feed piping may indicate the need for multiple zones. Refer to the Engineering manual for detailed limitation of components.
10-10 Page 12 2008-04-11 Figure 3. Water and Air Line Pressure Control Figure 4. Nozzle to Bracket Interface Figure 5. AFE Nozzle Ceiling Mounting.
10-10 Page 13 2008-04-11 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 on ly designed for use with 1/4” O.D. plastic tubing.
10-10 Page 14 2008-04-11 G. VACUUM VALVE (1) 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 wit h each vacuum valve.
10-10 Page 15 2008-04-11 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 in.
10-10 Page 16 2008-04-11 Figure 8. Vacuum Valve Operation Figure 9. Vacuum Valve Interfaces Figure 10. Pilot Air Regulator Figure 11. Pilot Air Regulator Installation.
10-10 Page 17 2008-04-11 I. PRIMARY AIR PRESSURE CONTROL (1) The primary air pressure control section (with the shutoff valve) is conne cted to the air compressor or the compressed air source as specified in the Designer produced drawings. See Figure 12 Primary Air Pressure Control Section.
10-10 Page 18 2008-04-11 Figure 12. Primary Air Pressure Control Section Figure 13. Primary Water Pressure Control Section Figure 14. Control Panel Figure 15.
10-10 Page 19 2008-04-11 M. PILOT LINES (1) 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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10-20 Page 21 2008-04-11 10-20 MINI & OCTO INSTALLATION.
10-20 Page 22 2008-04-11 1. AFE SELF CONTAINED AIRFOG SYSTEMS A. AFE MINI SYSTEMS (1) AFE MINI systems are self-contained pa ckaged systems that include all necessary components. (2) They require the following connections: (a) 3/8” O.D. plastic or soft copper water supply line rated at a minimum of 25 psig.
10-20 Page 23 2008-04-11 Figure 1. Mini Installations Figure 2. Plumbing End Connections.
10-20 Page 24 2008-04-11 B. AFE OCTO SYSTEMS (1) 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.
10-20 Page 25 2008-04-11 Figure 3. Octo Layout with Interfaces Figure 4. Octo Spray Pattern (4) 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.
10-20 Page 26 2008-04-11 (9) 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.
10-20 Page 27 2008-04-11 Figure 5. Ceiling Mounting of Octo Figure 6. Octo Air and Water Interfaces.
10-20 Page 28 2008-04-11 Figure 7. Four Octo Units with a Single Control Panel Figure 8. AFE Octo Nozzle Spray Pattern.
10-30 Page 29 2008-04-11 10-30 START-UP PROCEDURE.
10-30 Page 30 2008-04-11 1. AFE, MINI, AND OCTO START-UP PROCEDURES A. INTRODUCTION (1) The operator must make reference to Figure 1 Typical Nozzle Layout when following these instructions. Prior to startup, ensure the following: (a) All components have been visually checked for proper connections.
10-30 Page 31 2008-04-11 (3) Adjust the water regulator valve in the primary water pressure control section until the gauge reads 25 psig. (4) The pressure regulator on the vacuum valve should be adjusted to read between 5 and 7 psig.
10-30 Page 32 2008-04-11 (3) 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. NOTE The humidistat takes precedence over the timer for shutting down the system.
10-30 Page 33 2008-04-11 Figure 1. Capacity Output v s. Vacuum Valve Adjustment Figure 2. AFE Capacity Chart.
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10-40 Page 35 2008-04-11 10-40 SHUT-DOWN PROCEDURE.
10-40 Page 36 2008-04-11 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.
10-50 Page 37 2008-04-11 10-50 MAINTENANCE.
10-50 Page 38 2008-04-11 1. MAINTENANCE A. The two most probable maintenance problems are: (1) The accumulation of dirt and mineral deposits in/on the nozzle (2) Air and water leaks that may be due to marginal workmanship during installation but not obvious until after many hours of operations.
10-50 Page 39 2008-04-11 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.
10-50 Page 40 2008-04-11 a visual difference in the output of the nozzles as more tension is applie d to the spring. Be sure not to press down on the thumb wheel while turning it. (3) Release the thumb wheel tension and, once again, there should be a noticeable change in the nozzle output.
10-60 Page 41 2008-04-11 10-60 TROUBLESHOOTING.
10-60 Page 42 2008-04-11 1. TROUBLESHOOTING Table 1. Troubleshooting Part Possible Failure Symptoms Solution Vacuum Valve Diaphragm Failure Nozzle sputter. Low output. No output. Replace defective component. Pilot Safety Regulator Diaphragm Ripped Nozzles sputt er.
10-60 Page 43 2008-04-11 Solenoid Valve Burnt Coil Valve does not activate. Replace. Blocked No pressure leaving the valve. Clean. Stuck Closed Or Open Dirty plunger. Clean and install external filters. Timer Wrong Timer Settings System will not come on.
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10-70 Page 45 2008-04-11 10-70 SPARE PARTS.
10-70 Page 46 2008-04-11 1. SPARE PARTS A. Typically some spare parts are ordered wi th 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.
10-70 Page 47 2008-04-11 Figure 1. Octo Exploded View.
10-70 Page 48 2008-04-11 Table 2. Octo Spare Parts Item Part # Description OCTO OCTO PLUS OCTO PLUS Modulation 4 6 8 4 6 8 4 6 8 1 1608000 Octo Vacuum Valve (See Exploded View) 1 1 1 1 1 1 1 1 1 2 160.
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10-70 Page 50 2008-04-11 Figure 2. AFE Nozzle Exploded View Table 3. AFE Nozzle Spare Parts ITEM # PART # DESCRIPTION QTY 1 1603120 AFE Nozzle Repair Kit 1a O-Ring Seal 2 1b Flat Washer 2 1c Retaining.
10-70 Page 51 2008-04-11 Figure 3. Vacuum Valve Exploded View.
10-70 Page 52 2008-04-11 Table 4. Vacuum Valve Spare Parts ITEM # PART # DESCRIPT ION OCTO MINI STANDARD 1 1603122 Vacuum Valve Repair Kit 1 1 1 1a Washer Self Sealing 2 2 2 1b Polypropylene Di sc 2 2 2 1c Diaphragm 1/16 Neoprene 1 1 1 1d O-Ring Bod y Valve #118 2 2 2 1e O-Ring 1 1 1 2 1603002 Panel Mount Water Reg.
10-70 Page 53 2008-04-11 Figure 4. Control Panel Exploded View.
10-70 Page 54 2008-04-11 Table 5. Control Panel Spare Parts ITEM # PART # DESCRIPTION QTY MINI I/II AFE 1 1600027 Valve 4-way 24 Vac Solenoid 0 1 2 1603081 Pressure Switch, Screw-on (Modulating Contol.
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WARRANTY (1) WALTER MEIER INC. and/or WALTER MEIER LTD. (hereinafter collectively referred to as THE COMPANY), warrant for a period of two years afte r installation or 30 months from manufacturer’s .
U.S.A. W alter Meier (Climate USA) Inc. 826 Proctor Avenue Ogdensburg, NY 13669 TEL: 1-866-NORTEC-1 EMAIL: northamerica.climate@waltermeier .com WEBSITE: www .
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