Nortec NH Series Installation Manual
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Nortec NH Series Installation Manual

Nh series electrode steam humidifier
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NH
Series
TM
NHTC / NHPC
ELECTRODE
STEAM HUMIDIFIER
Installation Manual
2522381-C

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  • Page 1 Series NHTC / NHPC ELECTRODE STEAM HUMIDIFIER Installation Manual 2522381-C...
  • Page 2 Copyright 2008, WALTER MEIER LTD. All rights reserved. SPECIFICATION LABEL LOCATION The Specification Label for your NH Series Humidifier is located on the bottom of the unit. You will find it attached to the skirt that separates the electrical and plumbing compartments on the electrical compartment side.

  • Page 3: Table Of Contents

    NORTEC ONLINE INSTALLATION ........
  • Page 4 PRE-NORTEC ONLINE START UP CHECKLIST WIRING ........71...

  • Page 5: List Of Figures

    NORTEC OnLine Installation Guidelines (Optional) ........

  • Page 6: List Of Tables

    Humidifier and Distributor Inlet/Outlet Sizes ........
  • Page 7 2008-08-28...

  • Page 8: Introduction

    10-00 INTRODUCTION 10-00 Page 1 2008-08-28...

  • Page 9: Figure 1. Nhtc

    Figure 1. NHTC 10-00 Page 2 2008-08-28...

  • Page 10: Preinstallation

    A. RECEIVING & UNPACKING EQUIPMENT Check packing slip to ensure ALL material has been delivered. All material shortages are to be reported to NORTEC within 48 hours from receipt of goods. NORTEC assumes no responsibility for any material shortages beyond this period.

  • Page 11: Figure 2. Humidifier Box

    CONTROLS (IF ORDERED ONLY) BOX WITH ABBREVIATED INSTRUCTIONS AND BOX CONTENT STICKERS Figure 2. Humidifier Box Figure 4. SAM-e Distributor Box HUMIDIFIER STEAM HOSE SECTION (NOT SUPPLIED IF BUILT ON BLOWER PACK ORDERED) Figure 5. Remote Mounted Blower Pack Box Figure 3.

  • Page 12: Preinstallation Equipment Verification

    3. PREINSTALLATION EQUIPMENT VERIFICATION A. GENERAL Ensure that available voltage and phase corresponds with humidifier voltage and phase as indicated on humidifier’s specification label. Ensure that the dedicated external fuse disconnect is of sufficient size to handle the rated amps as indicated on the specification label. Refer to local codes.

  • Page 13: Figure 6. Typical Nhtc Installation

    Figure 6. Typical NHTC Installation (Sheet 1 of 2) 10-00 Page 6 2008-08-28...
  • Page 14 Figure 7. Typical NHTC Installation (Sheet 2 of 2) 10-00 Page 7 2008-08-28...
  • Page 15 THIS PAGE INTENTIONALLY LEFT BLANK 10-00 Page 8 2008-08-28...

  • Page 16: Installation

    10-10 INSTALLATION 10-10 Page 9 2008-08-28...

  • Page 17: Humidifier Installation

    1. HUMIDIFIER INSTALLATION A. LOCATION The NORTEC NHTC series humidifier is designed to mount on a suitable wall or vertical surface. Do not sit the unit on the floor due to clearances required for plumbing and electrical connections. The clearance dimensions shown in this manual are for reference only and are the minimum required for maintenance on the humidifier.

  • Page 18: Water Supply Line

    Figure 5 illustrates the guidelines for installation, routing and trapping of steam runs and condensate returns. Table 6 indicates steam outlet size of humidifier and steam inlet size of distributors. 10-10 Page 11 2008-08-28...

  • Page 19: Figure 1. Clearances And Operating Conditions

    Figure 1. Clearances and Operating Conditions Figure 2. Mounting with Keyholes Figure 3. Mounting with Mounting Bracket 10-10 Page 12 2008-08-28...

  • Page 20: Figure 4. Drain Water And Supply Connection

    Figure 4. Drain Water and Supply Connection 10-10 Page 13 2008-08-28...

  • Page 21: Table 2. Steam Line Material

    1. This table gives the maximum recommended steam run by unit size. 2. The use of steam line other then copper, stainless steel tube or Nortec supplied steam line will void the warranty and may adversely effect the operation of the humidifier 3.

  • Page 22: Figure 5. Steam Run And Condensate Return Installation Guidelines

    Figure 5. Steam Run and Condensate Return Installation Guidelines (Sheet 1 of 2) 10-10 Page 15 2008-08-28...

  • Page 23: Figure 6. Steam Run And Condensate Return Installation Guidelines

    Figure 6. Steam Run and Condensate Return Installation Guidelines (Sheet 1 of 2) 10-10 Page 16 2008-08-28...

  • Page 24: Table 4. Recommended Condensate Line At Distributor(S)

    Table 4. Recommended Condensate Line at Distributor(s) Dispersion Method Condensate Hose 0.375 inch 1 x Steam Distributor NORTEC 132-8840 0.375 inch 3 x Steam Distributor NORTEC 132-8840 Note: *When using more then 1 steam distributor, the condensate line must be trapped before it is joined together.

  • Page 25: Figure 7. Primary Voltage Supply Wiring

    Figure 7. Primary Voltage Supply Wiring 10-10 Page 18 2008-08-28...

  • Page 26: Electrical

    Humidifier. Direct wiring to the high voltage terminal is shown in Figure 7. H. CONTROL WIRING Controls are available from NORTEC as accessories. If controls were not ordered with humidifier, they must be purchased or supplied by others. The following information is relevant to all controls, factory supplied or otherwise.

  • Page 27: Figure 8. On-Off Control Guidelines And Low Voltage Terminal Strip

    On/Off Control Guidelines and Low Voltage Terminal Strip Figure 8. 10-10 Page 20 2008-08-28...

  • Page 28: Figure 9. Nortec Control Guidelines And Wiring (Optional)

    Figure 9. NORTEC Control Guidelines and Wiring (Optional) 10-10 Page 21 2008-08-28...

  • Page 29: Optional Outdoor Temperature Reset Function

    OPTIONAL OUTDOOR TEMPERATURE RESET FUNCTION Order outdoor temperature sensor separately, Part #252-0263. Each humidistat and controller is equipped with an integrated reset function that will limit the setpoint during cold weather operation. This will prevent condensation on windows and building structures. Figure 10 illustrates how the setpoint reset feature operates.

  • Page 30: Humidity Transducer Signal Installation

    The wiring of master/slave networks are explained in Figure 12. It allows operation of multiple NHTCs with one control signal. L. NORTEC ONLINE INSTALLATION An abbreviated recommended installation of NORTEC OnLine and its components are shown in Figure 13. 10-10...

  • Page 31: Figure 11. Nortec Humidity Transducer Guidelines And Wiring (Optional)

    Figure 11. NORTEC Humidity Transducer Guidelines and Wiring (Optional) 10-10 Page 24 2008-08-28...

  • Page 32: Figure 12. Networking Nhtcs (Optional)

    Figure 12. Networking NHTCs (Optional) 10-10 Page 25 2008-08-28...

  • Page 33: Figure 13. Nortec Online Installation Guidelines (Optional)

    Figure 13. NORTEC OnLine Installation Guidelines (Optional) 10-10 Page 26 2008-08-28...

  • Page 34: Operation

    10-20 OPERATION 10-20 Page 27 2008-08-28...

  • Page 35: Nhtc

    Water Conductivity depicts an indication of drain amounts. D. CYLINDER LIFE (1) The output of all NH Series humidifiers is pure, clean steam; minerals originally in the incoming water are left behind. These minerals will eventually coat the cylinder electrodes.

  • Page 36: Table 1. Nhtc/Nhpc Components

    1A, which activate in conjunction with humidifier on, steam production, service and error conditions. The NORTEC disposable cylinder contains electrodes that become energized when the contactor is closed. This allows current to pass through the water from one electrode to another, generating heat within the water.
  • Page 37 NORTEC ONLINE OPTION NHTC ONLY. This module allows the NHTC to be connected to the internet and communicate information to NORTEC via the internet. See NORTEC OnLine operation for details. NHTC only NORTEC LINKS OPTION NHTC ONLY This module allows the NHTC to communicate with a BMS system using the communication protocol requested at order.

  • Page 38: Figure 3. Humidifier Start-Up

    Figure 3. Humidifier Start-Up Figure 4. Drain Rate Versus Water Figure 5. Capacity Setting and Cylinder Life Conductivity 10-20 Page 31 2008-08-28...

  • Page 39: Figure 6. Basic Steam Production Method

    Figure 6. Basic Steam Production Method 10-20 Page 32 2008-08-28...

  • Page 40: Software Initial Self-Test

    (2) After three days of no call from either the on/off controls or the modulating controls, when active, the three-day drain active feature is automatically activated long enough to drain all water from the steam cylinder. This NORTEC feature will prolong the life of the cylinder. (User selectable, default is ON.)

  • Page 41: Figure 7. Software Flow Chart

    Figure 7. Software Flow Chart (Sheet 1 of 7) 10-20 Page 34 2008-08-28...
  • Page 42 Figure 7. Software Flow Chart (Sheet 2 of 7) 10-20 Page 35 2008-08-28...
  • Page 43 Figure 7. Software Flow Chart (Sheet 3 of 7) 10-20 Page 36 2008-08-28...
  • Page 44 Figure 7. Software Flow Chart (Sheet 4 of 7) 10-20 Page 37 2008-08-28...
  • Page 45 Figure 7. Software Flow Chart (Sheet 5 of 7) 10-20 Page 38 2008-08-28...
  • Page 46 Figure 7. Software Flow Chart (Sheet 6 of 7) 10-20 Page 39 2008-08-28...
  • Page 47 Figure 7. Software Flow Chart (Sheet 7 of 7) 10-20 Page 40 2008-08-28...

  • Page 48: System Messages And Lights

    (1) Table 3 describes general signal light status meanings. Yellow Green Unit is on standby or humidifier has just been energized but has not sensed production of steam yet. Humidifier senses production of steam. An attention state exists that should not prevent the unit from producing steam when the controls call for it.

  • Page 49: Table 4. Status Messages With Led State

    Keep Warm feature activated, it has closed the contactor to warm the water. YEL, GRN The electronics allow the cylinder to be reset up to four times before locking out the humidifier. YEL, RED Humidifier interrupts operation and the fault relay is activated.
  • Page 50 Electronics have determined The cylinder must be replaced with the cylinder is spent. Within the next same type and model. 72 hours the humidifier will stop. Electronics have determined The cylinder must be replaced with the that the cylinder is spent.

  • Page 51: Steam Distribution

    C. BLOWER PACK OPERATION DURING AND FOLLOWING OPERATION OF THE HUMIDIFIER, THE STEAM AND COMPONENTS IN CONTACT WITH THE STEAM ON THE BLOWER PACK CAN BECOME HOT AND CAN BURN IF TOUCHED.

  • Page 52: Figure 9. Sam-E Operation

    Figure 9. SAM-e Operation Figure 10. Blower Pack Operation and Adjustments 10-20 Page 45 2008-08-28...

  • Page 53: Controls And Remote Communication (Optional)

    3. CONTROLS AND REMOTE COMMUNICATION (OPTIONAL) A. DIGITAL CONTROL OPERATION (1) Figure 11 shows the components of the NORTEC Controller and how to adjust the setpoint. (2) In the case of a modulating NORTEC Controller, Figure 12 shows the relation between the difference from setpoint to %rh in the room and the 0-10 V DC demand signal sent out.

  • Page 54: Nortec Links Operation

    D. NORTEC LINKS 2 OPERATION (1) NORTEC LINKS 2 is an option that can be integrated with the NHTC. This allows a BMS to monitor and in the right configuration, control the humidifier. For additional information about NORTEC Links and its operation and configuration, go to www.humidity.com...
  • Page 55 THIS PAGE INTENTIONALLY LEFT BLANK 10-20 Page 48 2008-08-28...

  • Page 56: Maintenance Procedures

    10-30 MAINTENANCE PROCEDURES 10-30 Page 49 2008-08-28...

  • Page 57: Nh Electrode Steam Humidifiers

    Failure to replace the cylinder at the end of cylinder life will cause the unit to lock out. NORTEC is not responsible for any damages resulting from, or attributed to, the failure to replace a spent cylinder (see Manufacturer’s Warranty).

  • Page 58: Components Of The Steam Cylinder

    D. COMPONENTS OF THE STEAM CYLINDER (1) Consult Figure 1 for NORTEC cylinder components. Figure 1. Cylinder Components 10-30 Page 51 2008-08-28...

  • Page 59: How To Remove The Steam Cylinder

    E. HOW TO REMOVE THE STEAM CYLINDER (1) Consult Figure 2 for removal of the steam cylinder. Figure 2. Cylinder Removal Procedure 10-30 Page 52 2008-08-28...

  • Page 60: Mandatory Cleaning Of The Drain Valve

    MANDATORY CLEANING OF THE DRAIN VALVE (1) Always clean the drain valve before installing a new cylinder since the valve port may be as dirty as the used cylinder. Figure 3 describes the process of removing and cleaning the drain valve. Perform paragraph E. before proceeding. Figure 3.

  • Page 61: How To Install The Replacement Cylinder

    G. HOW TO INSTALL THE REPLACEMENT CYLINDER (1) Consult Figure 4 to install the replacement cylinder. Figure 4. Cylinder Replacement Procedure 10-30 Page 54 2008-08-28...

  • Page 62: Troubleshooting

    10-40 TROUBLESHOOTING 10-40 Page 55 2008-08-28...

  • Page 63: Troubleshooting Nh Electrode Steam Humidifiers

    (1) Table 1 checkpoints will allow for faster troubleshooting. Ensuring that all these steps are taken is good practice when beginning to troubleshoot the NH series humidifier. Check your symptom and verify all points before ordering any replacement parts or contacting your local representative.

  • Page 64: Table 1. Troubleshooting Symptoms

    The proper water volume and pressure must be available as the valves in the NH unit rely on its pressure to control volume and operation. NORTEC recommends 55 to 60 PSIG. The unit will not activate the fill valve without a demand for humidity. It will also only fill as necessary once there is a demand.

  • Page 65: Troubleshooting Distributors

    Channel 1 has a signal. Whether for on/off or modulating, a voltage potential signal must be present between terminal 3 and 4 for the humidifier temperature. If on/off there should be 5 VDC. If VDC modulating, at least 25% of total possible signal must be present.

  • Page 66: Blower Packs Troubleshooting

    (1) An optional blower pack (BP), ensure power supplied to blower pack either from humidifier or other source, if present, gets its primary voltage from inside the humidifier. This way, only one external power source has to be connected to the equipment.

  • Page 67: Table 3. Nh System Messages

    E15: Over Current W16: Excess Current E16: Excess Current Table 3. NH System Messages System Action Humidifier is in standby until problem corrected. Humidifier activates its fault relay and interrupts its operation until communication is fixed. Humidifier activates its fault relay and interrupts operation.
  • Page 68 Page 61 2008-08-28 Corrective Action 1. Replace the driver board. 2. Verify that the humidifier is a double unit. 3. Check that the driver board ribbon cable is connected to the main board. 1. Verify configuration settings for the units.
  • Page 69 Humidifier will continue to Water conductivity is determined to be operate on this water supply. less than optimum. Humidifier put on standby. After Electronics cannot detect the control a timeout period, this warning RH sensor connected to the becomes a fault.
  • Page 70 2. Verify steam line installation. 3. Check optional inline filter. When ordering a new cylinder, quote the model number of cylinder presently installed in the humidifier or serial number of humidifier. When ordering a new cylinder, quote the model number presently installed in the humidifier.
  • Page 71 The limit signal is unstable. low demand to high demand too quickly and the humidifier cannot respond. The humidifier is being The humidifier has been disabled by a controlled via the network, not network message. locally. This is a customer selectable The humidifier is in standby mode.
  • Page 72 1. Is the humidifier oversized? 2. Is the high limit located too close to the distributor? 3. Are the safety controls damaged? 1. Is the humidifier still operating? 2. Is the humidifier oversized? 1. Is the humidifier still operational? 2. Is the humidifier oversized? 1.

  • Page 73: 10V Digital Humidistat Sensor Calibration

    Refers to amps listed on the humidifier specification label. SHORT CYCLING When the ‘on time’ of the humidifier is less than ten minutes upon a call for humidity. To correct short cycling, all humidifiers have a capacity adjustment which allows the output of the humidifier to be reduced as low as 20% of rated output, thus extending the ‘on time’...

  • Page 74: Technical

    10-50 TECHNICAL 10-50 Page 67 2008-08-28...

  • Page 75: Wiring And Terminals

    1. WIRING AND TERMINALS A. HUMIDIFIER CONTROL INFORMATION (1) See Figure 7 and Figure 9 in Chapter 10-10 for Controller and Transducer terminal definitions. See Figure 6 in Chapter 10-10 for low voltage terminal strip terminal definitions. Table 1. Controller and Sensor Specifications...

  • Page 76: Nh Wiring

    B. NH WIRING (1) See Figure 1and 2 for the NHTC/NHPC Single and Double Unit Wiring diagrams. Figure 1. NHTC/NHPC Double Unit Wiring Diagram 10-50 Page 69 2008-08-28...

  • Page 77: Figure 2. Nhtc/Nhpc Wiring Diagram

    Figure 2. NHTC/NHPC Wiring Diagram 10-50 Page 70 2008-08-28...

  • Page 78: Check Lists

    2. CHECK LISTS A. PRE-NORTEC ONLINE START UP CHECKLIST WIRING (1) Humidifier-to-Humidifier Connection: Each individual Humidifier linked to lead Unit. Connection can be direct or daisy-chained to other units. (2) Network Connection: Lead Unit wired to Local Network (Ethernet, GPRS, Dial-up).

  • Page 79: Humidifier Mandatory Pre-Start Up Checklist

    – High limit: ____________________ – Air proving: – Mod controller: ________________– Other: POWER: – Voltage, amperage rating and fuse correspond to Spec Label: – Disconnect switch located close to humidifier: Softened water Hardness: _____ gr. Acceptable Obstruction 3 ft min. ______________________ 2 ft min.

  • Page 80: Humidifier Mandatory Start-Up Checklist And Quick Reference

    D. HUMIDIFIER MANDATORY START-UP CHECKLIST AND QUICK REFERENCE Unit Serial #: _________________No. of humidifiers: _______ Tag: _______________ Unit type: ___________________Voltage: _____V/___ph Customer/Job: ______________ Address: ______________________________________ Inspected by: ________________Date of inspection: ____/____/____ PRELIMINARY: – Pre-start-up checklist completed? yes If no, return to Pre-Start-up Checklist before going on with start-up procedure.

  • Page 81: Periodic Maintenance Checklist And Quick Reference

    E. PERIODIC MAINTENANCE CHECKLIST AND QUICK REFERENCE (PAGE 1 OF 2) Unit Serial #: _________________No. of humidifiers: _______ Tag: _______________ Unit type: ___________________Voltage: _____V/___ph Customer/Job: ______________ Address: ______________________________________ Inspected by: ________________Date of inspection: ____/____/____ WHEN TO REPLACE THE CYLINDER: NHTC/NHPC light indication and LCD display: Yellow and Green light with W19: Cylinder Spent indicates the cylinder must be replaced in the next 72 hours.

  • Page 82: Extended Shutdown

    If cylinder plugs become loose, it is best to obtain a new replacement plug. Consult factory. EXTENDED SHUTDOWN: Before disconnecting power to the humidifier for a period of extended shutdown, ALWAYS DRAIN the cylinder first. ‘Open’ the main external fused disconnect to stop power to the humidifier.

  • Page 83: Spare Parts And Exploded Views

    3. SPARE PARTS AND EXPLODED VIEWS A. ASD, BSD, CSD DISTRIBUTOR (1) See Figure 3 for the ASD, BSD, CSD Distributor exploded view and spare parts. Figure 3. Distributor Exploded View and Spare Parts B. SAM-e SPARE PARTS (1) See Figure 4 for the SAM-e exploded view and spare parts. Figure 4.

  • Page 84: Nh Series Humidifier Spare Parts

    C. NH SERIES HUMIDIFIER SPARE PARTS (1) See Figure 5 for the NHTC/NHPC plumbing compartment exploded view and spare parts and Table 2 for the parts list. See Figure 6 for the NHTC/NHPC electrical compartment exploded view and spare parts and Table 3 for the parts list.

  • Page 85: Table 2. Nhtc/Nhpc Plumbing Part List

    550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/1 440-481/1 380/1 277/1 220-240/1 208/1 550-600/1 440-480/1...
  • Page 86 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/1 440-481/1 380/1 277/1 220-240/1 208/1 550-600/1 440-480/1...

  • Page 87: Figure 6. Nhtc/Nhpc Electrical Compartment Exploded View And Spare Parts

    Figure 6. NHTC/NHPC Electrical Compartment Exploded View and Spare Parts 10-50 Page 80 2008-08-28...

  • Page 88: Table 3. Nhtc/Nhpc Electrical Parts List

    550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/1 440-481/1 380/1 277/1 220-240/1 208/1 550-600/1 440-480/1...
  • Page 89 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/3 440-480/3 380/3 220-240/3 208/3 550-600/1 440-481/1 380/1 277/1 220-240/1 208/1 550-600/1 440-480/1...
  • Page 90 THIS PAGE INTENTIONALLY LEFT BLANK 10-50 Page 83 2008-08-28...

  • Page 91: 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 92 SERIAL # CYLINDER # Cylinder Replacement Date (MM/DD/YYYY) 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 Authorized Agent: CANADA Walter Meier (Climate Canada) Ltd. 2740 Fenton Road Ottawa, ON K1T 3T7...

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