Condair Nortec AIRFOG Series Installation And Operation Manual
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Condair Nortec AIRFOG Series Installation And Operation Manual

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Nortec
AIRFOG
Series
Installation and
Operation Manual
Includes installation, operation
maintenance and troubleshooting
information for your Nortec AirFog Series
Atomizing humidifier
1502247-H | 19 SEP 2018

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  • Page 1 Important: Read and save these instructions. This guide to be left with equipment. Nortec AIRFOG Series Installation and Operation Manual Includes installation, operation maintenance and troubleshooting information for your Nortec AirFog Series Atomizing humidifier 1502247-H | 19 SEP 2018...
  • Page 2 Condair Ltd., except to the extent required for installation or maintenance of recipient’s equipment. All references to the Condair name should be taken as referring to Condair Ltd.

  • Page 3: Table Of Contents

    Contents Introduction Nortec AFE, Nortec MINI, and Nortec Octo Start- up Nortec AirFog Humidifiers Procedures Nortec AirFog Family of Products Introduction Nortec AFE Principle of Operation Compressed Air Supply 2 General Technical Water Supply Considerations Self Cleaning Cycle Adjustment Installation Setting the System for Normal Nozzle System Layout Operation...

  • Page 5: Introduction

     Change of components is fast and requires minimal system disassembly. Nortec AirFog Family of Products The Nortec AirFog family is Condair most advanced adiabatic humidifiers. There are groups of products that fall in this family: applied products and packaged products.

  • Page 6: General Technical Considerations

    General Technical Considerations Adiabatic Cooling Phenomena There are no heating elements in any of Condair’s Nortec AirFog humidifiers. Water is injected directly into the air at the temperature it is supplied. As the droplets evaporate they extract sensible from the surrounding air at a rate of approximately 1,000 BTU per pound of water evaporated.
  • Page 7 In these cases Condair recommends the use of reverse osmosis or deionization systems to reduce the mineral content of the water before it enters the humidifier.
  • Page 8  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.  The Condair supplied parts should be checked against the designer’s drawings and parts list to ensure the correct quantity of the correct part numbers are available.

  • Page 9: Installation

    Installation 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 Nortec 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 10 Install as close to control panel as possible. Figure 2: Multi Zone Layout 6 | Nortec AirFog Installation Manual...

  • Page 11: Zones

    Mounting of Nozzles Each supplied Condair nozzle has a 3/8” NC 16 threaded port on the under side of the nozzle which is used to fasten the nozzle to a mounting bracket, as illustrated in Figure 4: Nozzle To Bracket Interface or Figure 5: Nortec AFE Nozzle Ceiling Mounting.
  • Page 12 Primary Air Pressure Control Section Primary Water Pressure Control Section Figure 3: Water and Air Line Pressure Control Lag Bolts Mounting Holes (Supplied By Others) For 1/4" Lag Bolts Saddle Clamp Polytube Nortec AFE Nozzle Saddle Clamp Polytube Wall Support Bracket Figure 4: Nozzle to Bracket Interface 8 | Nortec AirFog Installation Manual...

  • Page 13: 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 Condair supplied tubing is to be used, it must be a high grade uniform tubing from a reputable supplier.
  • Page 14 Cut-away View of Quick Disconnect Fitting Seal Locking Ring 1/4" Tubing Locking Fingers O-Ring Seal NPT Threads 1/4" Tubing Tubing MUST be cut PERPENDICULAR to ensure proper seal. Use sharp knife, not wire cutters or pliers. Figure 6: Quick Release Fitting Fitting Clamp Screw...

  • Page 15: Vacuum Valve

    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. Figure 9: Vacuum Valve Interfaces illustrates the plumbing interface details.
  • Page 16 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. There are no manual adjustments required. Install the pilot air regulator on the feed line before the nozzles by splicing into the air feed line to the nozzles.
  • Page 17 Air Compressor Compressed air exits the nozzles creating a vacuum on the water side. The negative pressure pulls the VV diaphragm down, opening the water valve. Air Compressor As the pressurised water enters the VV chamber it pushes up on the diaphram closing the water valve.
  • Page 18 Outlet Port Pilot Operated Air Regulator Inlet Port Pilot Line from Control Panel Figure 10: Pilot Air Regulator Figure 11: Pilot Air Regulator Installation 14 | Nortec AirFog Installation Manual...

  • Page 19: Primary Air Pressure Control

    Figure 16: Control Panel Terminal Strip Interfaces. Control panels are supplied by Condair in two configurations. The first is for use with systems that are designed to operate with only an On/Off humidistat and the second is designed to operate with a modulation controller.
  • Page 20 1/2" FNPT 1/4 Turn Shut Off Valve 1/2" NPT Brass Union Air Regulator 1/2" NPT Brass Union Filter (optional) Figure 12: Primary Air Pressure Control Section Shut Off Valve 1/2" NPT Brass Union Pressure Gauge 0-100 PSIG 1/2" NPT Brass Union 1/2"...
  • Page 21 Pilot Outlet Pilot Inlet (Main Air) Pilot Pressure Gauge Lock Pressure Regulator Yellow Light Humidifying Green Light On/Off on/off Switch Control Wiring Input Figure 14: Control Panel 24 VAC Modulation On/Off 24 VAC Controls Input Figure 15: Control Panel Terminal Strip Interfaces Nortec AirFog Installation Manual | 17...

  • Page 22: Pilot Lines

    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. The control panel requires an input pneumatic (air) control supply, which is usually tapped off the main air supply line upstream of the pilot air regulator.

  • Page 23: Nortec Afe Self Contained Nortec Airfog Systems

    Nortec AFE Self Contained Nortec AirFog systems Nortec AFE Mini Systems Nortec 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 24 3 ft (1 m) minimum 15 ft (4.5 m) clearance each nozzle 6 ft (1.8 m) minimum Figure 17: Control Panel Figure 18: Nortec AirFog Mini Connections 20 | Nortec AirFog Installation Manual...

  • Page 25: Nortec Afe Octo Systems

    Nortec AFE Octo Systems Nortec Octo systems are partially self contained and are between the simple Nortec MINI self- contained installation and the modular Nortec AFE systems. The Designer’s drawings and parts list will define the configuration. The only installation difference between the full modular system and the Nortec Octo is that the vacuum valve and pilot air regulator are located inside the Nortec Octo case as illustrated in Figure 19: Nortec Octo Layout and Interfaces.
  • Page 26 Figure 19: Nortec Octo Layout with Interfaces Figure 20: Nortec Octo Spray Pattern 22 | Nortec AirFog Installation Manual...
  • Page 27 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 23: Nortec Octo Air And Water Interfaces.
  • Page 28 Figure 21: Ceiling Mounting of Nortec Octo For copper tubing replace Tube must exceed end of sleeve plastic sleeve with the supplied by a min. 0.125" (3mm) brass sleeve Plastic Tube Bulkhead Union on Locking Nut plumbing side Pilot in connection 1/4" quick connect Air connection 1/2"...
  • Page 29 Figure 23: Four Nortec Octo Units with a Single Control Panel Figure 24: Nortec AFE Octo Nozzle Spray Pattern Nortec AirFog Installation Manual | 25...

  • Page 30: Nortec Afe, Nortec Mini, And Nortec Octo Start- Up

    Nortec AFE, Nortec MINI, and Nortec Octo Start-up Procedures 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. ...

  • Page 31: Self Cleaning Cycle Adjustment

    The on/off valve of the primary water pressure control section is turned ON. The handle should be in line with the pipe (as opposed to 90 degrees to it). Adjust the water regulator valve in the primary water pressure control section until the gauge reads 25 psig.

  • Page 32: Setting The System For Normal Operation

    The factory default setting for the timer is 2 minutes of off time (cleaning time) after every 8 hours of operation. Using settings that result in an off time of less than 10 seconds are not recommended. As well, using settings that result in an on time of less than 15 minutes are not recommended.
  • Page 33 Figure 25: Capacity Output vs. Vacuum Valve Adjustment Figure 26: Nortec AFE Capacity Chart Nortec AirFog Installation Manual | 29...

  • Page 34: Nortec Afe, Nortec Mini, Nortec Octo Shut Down Procedures

    Nortec AFE, Nortec MINI, and Nortec Octo Shut Down Procedures 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. The following procedures are the recommended method to manually terminate Nortec AirFog operations for long periods of time.

  • Page 35: Maintenance

    Maintenance 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. Nozzle cleaning is recommended at least once a year.

  • Page 36: Unscheduled Maintenance

    to random events. Repair the identified problems and verify the system is fully operational using the procedure described in the Start Up section of this guide. Unscheduled Maintenance Normally an unscheduled maintenance activity is initiated by an observation of a leak or other failure.
  • Page 37  Reduce the control panel pressure to 40 psig.  Adjust thumb wheel tension by turning it in a clockwise direction. There should be a visible decrease 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.

  • Page 38: Troubleshooting

    Troubleshooting Part Possible Failure Symptoms Solution Vacuum Valve Diaphragm Failure Nozzle sputter. Replace defective component. Low output. No output. Pilot Safety Regulator Nozzles sputter. Repair regulator using Diaphragm Ripped repair kit. Air in water line. Low output. No Output. Water drips from bonnet. Valve Seat O-Ring Pressure water line resulting Replace o-ring, rebuilt...

  • Page 39: Replacement Parts

    Low Air Pressure System not spraying properly Check control signal. Check humidistat setting. Check compressor or air supply. Sputtering Air bubbles in nozzle water line Spare Parts Typically some spare parts are ordered with a Nortec AirFog system. These parts and kits are to be retained in some safe location in a workshop for immediate access.
  • Page 40 Nortec Octo Exploded View & Spare Parts Figure 27: Nortec Octo Exploded View 36 | Nortec AirFog Installation Manual...
  • Page 41 Nortec Octo Spare Parts Nortec OCTO Nortec OCTO Nortec OCTO PLUS PLUS Item Part # Description Modulation 1608000* Nortec Octo Vacuum Valve (See Figure 27) 1609209* Nortec AFE Nozzle (See Figure 27) 1603064 3-Way Solenoid Valve 24 VAC Replacement Kit 1603020 On/Off Switch Assembly 1603021...
  • Page 42 Nortec AFE Nozzle Exploded View & Spare Parts Figure 28: Nortec AFE Nozzle Exploded View Item # Part # Description 1603120 Nortec AFE Nozzle Repair Kit O-Ring Seal Flat Washer Retaining Clip SST O-Ring Valve Seat Piston Seal Rod Seal 1604040 Cleaning Needle 1604039...
  • Page 43 Vacuum Valve Exploded View & Spare Parts Figure 29: Vacuum Valve Exploded View Nortec AirFog Installation Manual | 39...
  • Page 44 Vacuum Valve Exploded View & Spare Parts - Continued Item # Part # Description Nortec Nortec Standard Octo MINI 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...
  • Page 45 Control Panel Exploded View & Spare Parts Figure 30: Control Panel Exploded View Item # Part # Description Nortec Nortec MINI I/II 1600027 Valve 4-way 24 Vac Solenoid 1603081 Pressure Switch, Screw-on (Modulating Contol Panel Only) 1506260 E/P Converter Module (Modulating Control Panel Only) 1603050 Repeat Cycle Timer 1603200...
  • Page 47 Warranty Condair Inc. and/or Condair Ltd. (hereinafter collectively referred to as THE COMPANY), warrant for a period of two years after installation or 30 months from manufacturer’s ship date, whichever date is earlier, that THE COMPANY’s manufactured and assembled products, not otherwise expressly warranted, are free from defects in material and workmanship.
  • Page 48 U.S.A. 2700 90 St.. Sturtevant, WI 53177 835 Commerce Park Dr. Ogdensburg, NY 13669-2209 CANADA 2740 Fenton Road Ottawa, Ontario K1T 3T7 TEL: 1.866.667.8321 EMAIL: na.info@condair.com WEBSITE: www.condair.com...

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