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.
(1) OVERVIEW (1) 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...
(1) NETWORKING (1) It is possible to network up to a maximum of 8 units to a single LINKS 2. Since each unit is separately addressed, it is possible to monitor and control each unit individually. Different networking configurations may be achieved and are mostly dependant on the type of network present at the site.
A and B. To network multiple units to a single Gateway, the units may be daisy-chained to each other using the network link terminals at the TB3 connection jack on the humidifier logic board. Refer to wiring diagram in section 10-50.
LonWorks device possesses. The .xif file allows a network integrator to simulate the presence of a networked humidifier even if it is not yet physically connected to the network. In fact, if the integrator has the .xif files of all network devices, a complete system could be simulated and...
(5) VARIABLE DEFINITION In the variable name, “_x” denotes the humidifier number. If there is only one GSTC humidifier, all variable names will end in “_1”. If two units are networked together (see Figure 4), the second unit’s variable names will end in “_2”. For 3 networked units, “_3”...
Analogue Value nviSet2_x Analogue Value Table 3. Variable Definitions Description Indicates the number of hours the humidifier cylinder has been in operation. Reads to capacity limitation applied to the unit output. (50-100%) Reads Ch.1 input signal in %RH or demand to humidifier.
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Page 7 2008-02-18 Description Indicates unit fault status. 0=no fault, 1=fault. Indicates if a high-water level condition exists in the humidifier cylinder. 0=normal, 1=high water condition Reads configuration status for network-enabled sensing or control. 0=%RH or %demand input is not...
Directly to humidifiers or through BMS network. (2) START-UP PROCEDURE (1) Ensure power is being supplied to the humidifier, Nortec Links Module and Nortec OnLine module. For BACnet/IP adjust network IP settings. (If this information is provided, factory will perform necessary IP assignment).
(1) TROUBLESHOOTING (1) 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.
Figure 1. OnLine Diagnostic LED Locations Lon Device Status RX – Receive LED TX – Transmit LED Figure 3. LonWorks Module LED 10-30 Page 3 2008-02-18 Module RX – Receive LED Status Serial Port Activity Ethernet Activity Ethernet TX – Transmit LED Link Figure 2.
Table 1. OnLine Diagnostic LED Description LED Name Module Status Serial Port Activity Ethernet Activity/Collision Ethernet Link Color 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.
Table 2. LINKS 2 Module Diagnostic LEDs LED Name Module Power Receive LED (marked as Rx on processor board) Transmit LED (marked as Tx on processor board) Ethernet LINK Ethernet Activity 10-30 Page 5 2008-02-18 Color Function Indicates that the Online module is not receiving power.
When a BMS network demand/RH signal is being used the network must refresh the nviRHDem signal at least every 5 minutes otherwise the humidifier will revert to a 0 demand state. This is a safety precaution in case the BMS network connection is lost.
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External wiring ‘by others’ - 18 to 24 AWG stranded - Twisted pair, shielded Nortec LINKS 2 Terminal Strip (Unit 1) NHTC Processor Board DC Power Supply 24 VAC HOT 9 VDC OUT Note: Use open LAN port when employing an internet connection for BACnet/IP and/or Nortec OnLine.
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External wiring ‘by others’ - 18 to 24 AWG stranded - Twisted pair, shielded To BMS Network Nortec LINKS 2 Terminal Strip (Unit 1) NHTC Processor Board DC Power Supply Note: Use Router WAN port when employing an internet connection for OnLine. Use A and B terminals for LonWorks feedback.
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External wiring ‘by others’ - 18 to 24 AWG stranded - Twisted pair, shielded To BMS Network Nortec LINKS 2 Terminal Strip (Unit 1) NHTC Processor Board DC Power Supply 24 VAC HOT 9 VDC OUT Note: Use Router WAN port when employing an internet connection for OnLine.
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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.
INSTALLATION DATE (MM/DD/YYYY) MODEL # SERIAL # 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 CANADA Walter Meier (Climate Canada) Ltd. 2740 Fenton Road Ottawa, ON K1T 3T7 TEL: 1-866-NORTEC-1 FAX: (613) 822-7964 Authorized Agent:...
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