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Nortec LINKS 2 NHTC Installation And Operation Manual

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LINKS 2
NHTC OPTIONS
Installation and
Operation Manual
Includes installation, operation
maintenance and troubleshooting
information for your NHTC Nortec
LINKS2 Options.
2534674-A | 24 NOV 2009

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Summary of Contents for Nortec LINKS 2 NHTC

  • Page 1 Important: Read and save these instructions. This guide to be left with equipment. LINKS 2 NHTC OPTIONS Installation and Operation Manual Includes installation, operation maintenance and troubleshooting information for your NHTC Nortec LINKS2 Options. 2534674-A | 24 NOV 2009...
  • Page 2 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 liability for installations of humidity equipment installed by unqualified personnel or the use of parts/components/equipment that are not authorized or approved by NORTEC.

  • Page 3: Table Of Contents

    Contents 1 Installation Overview Multi-Unit Systems Wiring Network Integration Start-Up Checklist 18 Troubleshooting Indicator Lights 23 Replacement Parts Wiring Diagrams...

  • Page 5: Overview

    Overview The NHTC NORTEC Links 2 Option allows for the integration of a NHTC Series humidifier within a BACnet, Johnson N2 or LonWorks network and allows those units to concurrently be monitored via the NORTEC OnLine interface. This option features a NORTEC OnLine module co-existing with a gateway that has the capability of converting information from the host Modbus protocol to a specified secondary protocol.

  • Page 6: Wiring

    Nortec Links 2 module to the Building Management system. Communication between the humidifiers and Nortec Links 2 will occur via a EIA-485 signal type. Nortec recommends using a 18-24 AWG shielded, 120 twisted pair wire between the lead humidifier and each of the slave humidifiers.
  • Page 7 BACnet/IP A standard CAT-5E cable with an RJ-45 (Ethernet) jack is to be connected to port 3,4, or 5 on the gateway. Refer to wiring diagrams in this manual. Cable Shielding The cable’s shield should be connected to the shield terminal at the BMS system only, and not the Links 2 module.

  • Page 8: Network Integration

    NORTEC Links 2 is capable of communicating a variety of variables for each unit that is connected to it. For a variable listing and definition refer to Table 4. Network variable addresses for the humidifiers may be seen in Table 5 to Table 12.
  • Page 9 Table 4: Variable Definitions R=Read Variable Name Description LonWorks SNVT W=Write Indicates the number of hours the nvoHourOpt_x SNVT_count_inc humidifier cylinder has been in Analog Value operation. Reads to capacity limitation applied to the unit output. nvoCapLimit SNVT_switch Analog Value (50-100%) Reads Ch.1 input signal in %RH or nvoRHDem1_x...
  • Page 10 SNVT_switch 0=no service required, Binary Value 1=service required Reads humidifier status. nvoStatus_x SNVT_switch 0=standby, 1=humidifying. Binary Value Indicates that the NORTEC Links nvoConnection_x module is communicating with the SNVT_switch Binary Value Humidifier Writes remote disable status. 0=humidifier enabled, nviDisable_x SNVT_switch...
  • Page 11 NHTC LINKS 2 Variable Listing Default BACnet/IP Address: 192.168.10.11; Subnet: 255.255.255.0 Default BACnet/MSTP Address: 78 Default Johnson N2 Address: 174 Unit #1 BACnet Lonworks Variable Name Type Instance SNVT SNVT # NV Index Type Instance nvoHourOpt_1 time_hour nvoCapLimit_1 lev_percent nvoRHDem1_1 lev_percent nvoSet1_1 lev_percent...
  • Page 12 Variable Name Type Instance SNVT SNVT # NV Index Type Instance nvoHourOpt_2 time_hour nvoCapLimit_2 lev_percent nvoRHDem1_2 lev_percent nvoSet1_2 lev_percent nvoRHDem1_2 lev_percent nvoSet2_2 lev_percent nvoSysDemand_2 lev_percent nviCapLimit_2 lev_percent nviSet1_2 lev_percent nviSet2_2 lev_percent nviRHDem1_2 lev_percent nviRHDem2_2 lev_percent nviDisable_1 switch Expansion_2 Expansion_2 nvoFault_2 switch Binary In nvoHWSensor_2...

  • Page 13: Binary In

    Table 7. Humidifier Variable Addresses - Unit #3 Unit #3 BACnet Lonworks Variable Name Type Instance SNVT SNVT # Element Type Instance nvoHourOpt_3 time_hour nvoCapLimit_3 lev_percent nvoRHDem1_3 lev_percent nvoSet1_3 lev_percent nvoRHDem1_3 lev_percent nvoSet2_3 lev_percent nvoSysDemand_3 lev_percent nviCapLimit_3 lev_percent nviSet1_3 lev_percent nviSet2_3 lev_percent nviRHDem1_3...
  • Page 14 Table 8: Humidifier Variable Addresses - Unit #4 Unit #4 BACnet Lonworks Variable Name Type Instance SNVT SNVT # Element Type Instance nvoHourOpt_4 time_hour nvoCapLimit_4 lev_percent nvoRHDem1_4 lev_percent nvoSet1_4 lev_percent nvoRHDem1_4 lev_percent nvoSet2_4 lev_percent nvoSysDemand_4 lev_percent nviCapLimit_4 lev_percent nviSet1_4 lev_percent nviSet2_4 lev_percent nviRHDem1_4...
  • Page 15 Table 9. Humidifier Variable Addresses - Unit #5 Unit #5 BACnet Lonworks Variable Name Type Instance SNVT SNVT # Element Type Instance nvoHourOpt_5 time_hour nvoCapLimit_5 lev_percent nvoRHDem1_5 lev_percent nvoSet1_5 lev_percent nvoRHDem1_5 lev_percent nvoSet2_5 lev_percent nvoSysDemand_5 lev_percent nviCapLimit_5 lev_percent nviSet1_5 lev_percent nviSet2_5 lev_percent nviRHDem1_5...
  • Page 16 Table 10. Humidifier Variable Addresses - Unit #6 Unit #6 BACnet Lonworks Variable Name Type Instance SNVT SNVT # Element Type Instance nvoHourOpt_6 time_hour nvoCapLimit_6 lev_percent nvoRHDem1_6 lev_percent nvoSet1_6 lev_percent nvoRHDem1_6 lev_percent nvoSet2_6 lev_percent nvoSysDemand_6 lev_percent nviCapLimit_6 lev_percent nviSet1_6 lev_percent nviSet2_6 lev_percent nviRHDem1_6...
  • Page 17 Table 11. Humidifier Variable Addresses - Unit #7 Unit #7 BACnet Lonworks Variable Name Type Instance SNVT SNVT # Element Type Instance nvoHourOpt_7 time_hour nvoCapLimit_7 lev_percent nvoRHDem1_7 lev_percent nvoSet1_7 lev_percent nvoRHDem1_7 lev_percent nvoSet2_7 lev_percent nvoSysDemand_7 lev_percent nviCapLimit_7 lev_percent nviSet1_7 lev_percent nviSet2_7 lev_percent nviRHDem1_7...
  • Page 18 Table 12. Humidifier Variable Addresses - Unit #8 Unit #8 BACnet Lonworks Variable Name Type Instance SNVT SNVT # Element Type Instance nvoHourOpt_8 time_hour nvoCapLimit_8 lev_percent nvoRHDem1_8 lev_percent nvoSet1_8 lev_percent nvoRHDem1_8 lev_percent nvoSet2_8 lev_percent nvoSysDemand_8 lev_percent nviCapLimit_8 lev_percent nviSet1_8 lev_percent nviSet2_8 lev_percent nviRHDem1_8...
  • Page 19 Configuration Variables nviInputType_x nviNetSensor_x Control Variables nviSet1_x = Room Setpoint (0-100%) nviSet2_x = Hi-Limit Setpoint (0-100%) nviRHDem1_x = Room %RH (0-100%) nviRHDem2_x = Hi-Limit %RH (0-100%) nviDisable_x = 1 Unit Disabled = 0 Unit Enabled Readable Variables nvoStatus_x = 1 Humidifying = 0 Standby nvoService_x = 1 Service Required...

  • Page 20: Start-Up Checklist

    = 0 No Fault nvoSysDemand_x = System Demand(0-100%) NHTC nvoDisable_x = 1 Unit Disabled = 0 Unit Enabled Figure 3: Sample Humidification Applications Room-Sensed %RH Feedback with Duct High-Limit Sensing (0-10V Signal Directly to Humidifier) NORTEC Links 2 Start-up Checklist 16 | Installation...
  • Page 21 Map desired network variables to BMS.   Verify variable operation after mapping is complete. Perform regular humidifier start-up check.  Firewall  Network port 5222 should be open to TCP traffic for NORTEC OnLine operation (when used). Installation | 17...

  • Page 22: Troubleshooting

    When troubleshooting the communication process for OnLine and/or Links 2 modules should be kept in mind. Humidifier data is first received by the NORTEC OnLine module using the modbus protocol over the serial port connection. It then forwards this data, via modbus/TCP, to the Links 2 module over an ethernet link.
  • Page 23 Figure 4: OnLine Diagnostic LED Locations Figure 5: BACnet Module LED Troubleshooting | 19...
  • Page 24 Figure 6: LonWorks Module LED Locations Figure 7: Ethernet Port LED 20 | Troubleshooting...
  • Page 25 Table 6: OnLine Module Diagnostic LED Description LED Name Color Function Module Status Indicates that the Online module is not receiving power. Green Indicates the Online module is operating normally. Orange Indicates that the Online module is loading the firmware installed on the module. Serial Port Activity Flashing Green Indicates that the Online module is receiving a...
  • Page 26 LINKS 2 module may need to be restarted to load the new settings. Check the Serial Port Activity LED on the NORTEC OnLine module to ensure proper communication with the humidifiers. Data is first received from the humidifier to the OnLine module.

  • Page 27: Replacement Parts | 23

    Table 9: Replacement Parts NORTEC Links 2 Options Part Description Specify Unit Type Protocol at time of order Number BACnet/MSTP BACnet/IP LonWorks 2527101 Links 2 Replacement Module, BACnet/IP 2527102 Links 2 Replacement Module, BACnet/MSTP 2527103 Links 2 Replacement Module, LonWorks...
  • Page 28 Figure 8: BACnet or N2 Module Figure 9: LonWorks Module 24 | Replacement Parts...
  • Page 29 Figure 10: OnLine Module Figure 11: Ethernet Router Replacement Parts | 25...
  • Page 30 Figure 12: Ethernet Switch 26 | Replacement Parts...
  • Page 31 Technical | 27...
  • Page 32 28 | Technical...
  • Page 33 Technical | 29...
  • Page 34  ...
  • Page 35 Warranty Walter Meier Inc. and/or Walter Meier 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 (with the exception of the cylinder), are free from defects in material and workmanship.
  • Page 36 U.S.A. Walter Meier (Climate USA) Inc. 826 Proctor Avenue Ogdensburg, NY 13669 CANADA Walter Meier (Climate Canada) Ltd. 2740 Fenton Road Ottawa, Ontario K1T 3T7 TEL: 1.866.NORTEC1 FAX: 613.822.7964 EMAIL: northamerica.climate@waltermeier.com WEBSITE: www.humidity.com www.norteconline.com Certificate No. 002419...

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