Nortec LINKS XPS MH User Manual

Important: Read and save these instructions. This guide to be left with equipment.

2559106-D | 10 OCT 2014

LINKS XPS

MH

Installation and Operation Manual

Includes installation, operation maintenance and troubleshooting information for your MHTC Evaporative Media humidifier

INSTALLATION DATE (MM/DD/YYYY)

MODEL #

SERIAL #

CYLINDER #

Thank you for choosing NORTEC.

Proprietary Notice

This document and the information disclosed herein are proprietary data of NORTEC HUMIDITY LTD. Neither this document nor the information contained herein shall be reproduced used, or disclosed to others without the written authorization of NORTEC HUMIDITY 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 NORTEC HUMIDITY 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.

Copyright Notice

Contents

3 Multi Unit Systems

4 Installing Links XPS into the Control Cabinet

4 Mounting the Links XPS Assembly

7 Internal Wiring Connections

15 Configuring the Humidifiers

17 Wiring

19 Gateway Configuration

21 Changing Baud Rate (BACnet MSTP, Johnson N2, LonWorks)

23 Changing the IP Address (BACnet IP)

27 Network Integration

30 BACnet Pics and Bibs

30 Variable Definition

43 Start-up Checklist

44 Troubleshooting

44 Indicator Lights

50 Wiring Diagrams

Protocol

BACnet MS/TP

BACnet / IP

Johnson N2

LonWorks

The MHTC Nortec Links XPS Option allows for the integration of a MHTC Series humidifier within a BACnet, Johnson N2 or LonWorks network. This option features a gateway that has the capability of converting information from the host Modbus protocol to a specified secondary protocol.

The following protocol options are available, and must be specified at time of order:

Table 1: Protocol Options

Multi-Unit Systems (“Master/Slave”)

Up to 8 humidifiers can be chained and monitored through a single Links XPS package. In this configuration, the unit with the Links XPS package is designated the “Master Unit”, while the remaining 7 humidifiers are configured as “Slaves”. The master unit is connected to the Building Management Systems (BMS). Each unit is separately addressed, it is possible to monitor and control each unit individually.

Different networking configurations may be achieved depending on the type of network being used. One networking example could have a Gateway installed inside the lead unit, which could then be daisy-chained to successive units. In turn, the lead unit would connect to a Building Management System (BMS) network via a shielded, twisted-pair connection. Please see wiring section for additional detail. A second example could have a series of units directly connected to an Ethernet network. This is only possible for BACnet communication and is essentially referred to as a BACnet/IP configuration.

Links XPS for MHTC | 2

Installing Links XPS into the Control Cabinet

If the Links XPS package was included with the original unit order, the necessary hardware will have been factory mounted and wired into the MHTC control cabinet. In this case, please skip ahead to the Wiring section for information on how to complete connections to the building automation system.

If Links XPS is being retrofit, or added to an existing MHTC unit in the field, follow the steps below prior to connecting wiring to the building automation system.

Mounting the Links XPS Assembly

Caution: Disconnect electrical power from humidifier before performing work inside control cabinet.

Locate the MHTC control panel and turn the power switch to the off position. Ensure that the power is also turned off at the breaker panel to prevent electrical shock. Open the control cabinet by loosening the screws on the on right side of the cabinet and sliding the brass lock clip out of the way.

MHTC ReFlow Models

1 Using the 4 plastic standoffs and plastic screws provided, attach the Links XPS module to

the steel back plate in the location shown in Figures 1and 2.

2 Secure the XPS transformer into the location shown in Figures 1 and 2. Use the two #6-32

thread cutting screws provided to secure the transformer in place.

3 Install the XPS Terminal strip onto the DIN rail at the bottom of the control cabinet as shown

in Figure 1. It may be necessary to remove one or both of the rail locks and shift the entire control terminal strip over to accommodate the XPS terminal strip.

Note: The exact location the XPS transformer may vary depending on the revision of back plate. Also, units produced before August 2011 may not have the holes for the XPS module and transformer. These models will require new holes to be drilled during installation.

3 | Links XPS for MHTC

Figure 1: Component Identification

Figure 2: Component Hole Location

Links XPS for MHTC | 4

MHTC Flow Models:

1 On MHTC Flow models, Links XPS replaces the remote fault relay board. Remove the

remote fault relay board indicated in Figure 3 and disconnect the cable.

Underneath the remote fault relay board, the 4 holes for the XPS module and two holes for the XPS transformer should be visible. Depending on the revision of the backplate these holes may be in different configurations or may not be present at all. In the case of the

latter, drill 4x ¼” holes to accommodate the XPS module. Subsequently drill 2x 9/64” holes

to accommodate the XPS transformer.

2 Using the 4 plastic standoffs and plastic screws provided, attach the Links XPS module to

the steel back plate.

3 Secure the XPS transformer using the two #6-32 thread cutting screws. 4 Install the XPS Terminal strip onto the DIN rail at the bottom of the control cabinet as shown

in Figure 1. It may be necessary to remove one or both of the rail locks and shift the entire control terminal strip over to accommodate the XPS terminal strip.

5 | Links XPS for MHTC

Figure 3: MHTC Flow Control Cabinet

Links XPS for MHTC | 6

Internal Wiring Connections

1 Connect the two black wires from the Links XPS transformer to the terminal 21 and 22 on

the MHTC control panel as shown in Figure 4. These wires are not polarity sensitive.

7 | Links XPS for MHTC

Figure 4: Transformer Power Connections

2 Identify the Modbus and Building Automation System ends on the XPS module.

Figure 5: Communication Ports XPS Module

3 Connect the two white wires from the transformer to the power terminals on the Modbus end of XPS module as shown in Figure 5. Also, connect one of the two short grey 3-wire cables into the +, -, and GND terminals on the XPS module as shown in Figure 5.

Links XPS for MHTC | 8

Figure 6: Links XPS Lonworks Module Terminals

4 Connect the other end of the short grey 3-wire cable from step 3 into the Net+, Net-, and GND terminals on the DIN rail. The red cable should be connected to the Net + terminal, the black to the Net - terminal, and grey/bare to the GND terminal. Refer to Figure 6.

9 | Links XPS for MHTC

Figure 7: Communication Connections

5 Locate the long grey 3-wire cable with the RJ-45 plug on one end. Connect the wire end of this cable into the Net+, Net -, and GND terminals used in step 4. The red cable should be connected to the Net + terminal, the black to the Net - terminal, and grey/bare to the GND

terminal. These wires can either be “doubled up” with the cable from step 4 or installed on the opposing side of the DIN rail. The cable, shown “doubled up”, is depicted in Figure 6.

Links XPS for MHTC | 10

6 Connect RJ-45 end of the cable in step 6 into the port on the lower end of the processor board. The processor board is mounted on the door of the control cabinet.

11 | Links XPS for MHTC

Figure 8: RJ45 Connection to Processor Board

7 Locate the remaining short 3-wire cable. Connect this cable to the Building Automation System end of the XPS module as shown in Figure 8 (N2, BACnet MSTP) or Figure 9 (LonWorks). Lonworks is not polarity sensitive.

Note: BACnet IP packages do not require this step since they use the ethernet port on the XPS module for communications.

Figure 9: Building Automation Connections (Johnson N2/ BACnet MS/TP)

Figure 10: Building Automation Connections (Lonworks)

Links XPS for MHTC | 12

Wiring diagrams are provided below for reference.

13 | Links XPS for MHTC

Figure 11: Links XPS for MHTC with BACnet MSTP or N2

Figure 12: Links XPS for MHTC with BACnet IP only

Links XPS for MHTC | 14

15 | Links XPS for MHTC

Figure 13: Links XPS for MHTC with LonWorks

Configuring the Humidifiers

The PCB processor board will need to be configured to work with the Links XPS modules. Additionally, Nortec Links XPS can connect to a maximum of 8 units from a single Links XPS gateway. If slave units are being used it is necessary to set the address of each slave module. The address should be the number the nit will have on the networked chain.

Links XPS can be used for control, monitoring, or both. To set the control mode on the humidifier, on the humidifier refer to the procedure on page 52 of the MH2 Installation and Operation Manual to enter the controls menu.

If you would like to control the humidifier directly by signal writing values over the Links XPS package set the Signal Source to Modbus. The humidifier will now look for values to be written to the humidifier.

If you would like to use an analog control signal (from a wall stat or building automation system) leave Signal Source setting to Analog and then set Hum. Control and Controlsign. to match the type of controls being used. Ensure that controls are physically wired to terminals 3 and 4 on the DIN rail terminal strip.

To set the humidifier to recognize the Links XPS package:

1 On the humidifier keypad, Press the menu button on the keypad and scroll to the User menu

using the arrow keys. Press Set to enter the User menu.

2 When prompted for a password, use the arrow keys to enter 8808 and press Set to confirm. 3 Scroll to the Modbus menu and press Set to enter the menu. 4 Set the Parity to None1. 5 Set the Modbus address of the lead unit to 1. Repeat this step for any slave humidifiers,

taking care to assign each slave unit a unique and sequential number. For example if the lead is 1, subsequent units should be 2, 3, 4, etc. Note: Ensure that no units share the same Modbus address.

6 Place the appropriate Unit Identifier label on each humidifier. These laps should match the

Modbus address for that humidifier and should be placed in a visible location.

7 Connect the slave humidifiers (if applicable) to the Nortec Links Module. A twisted pair cable

should be used so that the Net (+) terminal on the Links module should connect to the Net (+) terminal on the slave unit (NHTC). The Net (–) terminal on the module should be connected to the Net (–) terminal on the slave unit. Refer to the Links XPS wiring diagram for more information.

Links XPS for MHTC | 16

8 Ensure shield wiring matches the following pattern if distances between humidifiers is

significant (2200 ft):

Figure 14: Multiple Slave Humidifiers

17 | Links XPS for MHTC

Protocol

Signal

Type Polarity

Recommended

Cable

Maximum

Recommended Distance

from Nortec Module

A

B

BACnet MS/TP

EIA-485,

2-wire

Net +

Net -

18-24 AWG

Shielded, Twisted

Pair

120  Impedance

2300 ft at 9.6 kbps

2000 ft at 38.4 kbps

Johnson N2

LonWorks

FTT-10, 2-

wire

Tx Rx

18-24 AWG

Twisted Pair

120  Impedance

Should not exceed 50 ft.

BACnet/IP

LAN

standard

N/A

CAT.5E cable with

RJ-45 termination

Depends on cable

manufacturer

Wiring

BACnet MS/TP, Johnson N2, and LonWorks

Links XPS is pre-installed and factory wired. Connections must be made between the master humidifier and the BMS, and the master humidifier and any slaves that may be present.

Up to 8 units (1 master, 7 slaves) may be connected to a BMS through a single gateway in the master unit. The units are daisy chained via the Links XPS terminal strip. The wire shield should only be connected at one end per pair of units when “daisy chaining”.

Table 2 refers to the recommended wire types and maximum recommended lengths from the Nortec Links XPS module to the Building Management system. Communication between the humidifiers and Nortec Links XPS 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. Total cable length runs between the Nortec Links XPS module and the furthest slave humidifier should not exceed 2,000 feet. Signal boosters or repeaters may be necessary for longer wire runs or where electrical noise interference is prevalent.

Table 2: Recommended Wire Types and Lengths

Links XPS for MHTC | 18

BACnet/IP

A standard CAT-5E cable with an RJ-45 (Ethernet) jack is to be connected to the Ethernet port on the Links XPS module. 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 XPS module.

As well the cable shield should be connected at the lead unit only and not at subsequent units.

For long chains the shield would appear as:

Unit 2 to Master - Shield connected at master only.

Unit 3 to Unit 2 - Shield connected at unit 2 only.

Unit 4 to Unit 3 - Shield connected at unit 3 only.

And so forth.

19 | Links XPS for MHTC

Gateway Configuration

Protocol configuration is completed at the factory, prior to final testing. If configuration information was supplied at the time of order, the units will be configured for plug-and-play installation with no further configuration required. If this information was unavailable, it will be necessary to configure the addressing parameters.

 BACnet IP systems will require a static IP address to communicate on the network, and may

require a device instance and MAC address

 BACnet MS/TP and Johnson N2 systems require both a device instance, MAC address and

a baud rate to be set.

 LonWorks systems automatically detect network address parameters and do not require

configuration.

Changing BACnet Device Instance and BACnet MAC Address

The initial step is to determine if both BACnet Device Instance and MAC address can be the same value. If not, skip to Part B. If yes, continue with Part A using solely the small dipswitches.

Part A: Device Instance and MAC address same value

The device instance and BACnet MAC address can be easily changed to the same value using the dip switches (SW3 Bank 1 through 8) highlighted on figure 10. Notice these are the smaller dipswitches, not the larger ones.

Figure 15: Dip Switches for BACnet Address Changes

Links XPS for MHTC | 20

Figure 16: Respective Address and Baudrate Dipswitches

These switches allow you to set a binary value for the device instance between 1 and 127 inclusively. To set the device instance to a value outside of this range, skip to PART B.

21 | Links XPS for MHTC

Switch

A8

A7

A6

A5

A4

A3

A2

A1

Setting

Off

On

Off

On

Off

Binary 0 1 0 0 1 1 1 0

Exponential Meaning

27 x 0

26 x 1

25 x 0

24 x 0

23 x 1

22 x 1

21 x 1

20 x 0

Simplified Meaning

128 x 0

64 x 1

32 x 0

16 x 0

8 x 1

4 x 1

2 x 1

1 x 0

Numerical Meaning

0

64 0 0 8 4 2 0

Result

64 + 8 + 4 + 2 = 78

Value

A8

A7

A6

A5

A4

A3

A2

A1

0 (cannot be used)

Off

1

Off

On

10

Off

On

Off

On

Off

25

Off

On

Off

On

40

Off

On

Off

On

Off

50

Off

On

Off

On

Off

75

Off

On

Off

On

Off

On

78

Off

On

Off

On

Off

100

Off

On

Off

On

Off

125

Off

On

Off

On

127

Off

On

The methodology for converting numbers to binary is presented in the example below. In this example, a value of 78 is converted to binary and set as the device instance:

Table 3: Converting Numbers to Binary

When adjusting switches be sure to adjust only the switches highlighted in the box in Table 3 above. Also, switches may be presented in reverse order (compared with the table below) on the physical hardware itself. Take care when adjusting switches to ensure the settings are entered as intended. Common settings are tabulated below:

Table 4: Common Settings

Links XPS for MHTC | 22

Setting

B4

B3

B2

B1

110

Off

On

300

Off

On

Off

600

Off

On

1200

Off

On

Off

2400

Off

On

Off

On

4800

Off

On

Off

9600

Off

On

19200

On

Off

20833

On

Off

On

28800

On

Off

On

Off

38400

On

Off

On

57600

On

Off

76800

On

Off

On

115200

On

Off

After an address change has been made, the Links XPS module must be power cycled for the change to take effect. The module may take up to 60 seconds to restart after a power cycle.

Changing Baud Rate (BACnet MSTP, Johnson N2, LonWorks)

The baud rate for communications must be changed through dipswitches (SW4 Bank, 1 through

4). Refer to figure 16 for location of the dipswitch.

By adjusting the settings according to the table 5, the baud rate can be changed. The Baud rate must be set to exactly the same baud rate as your Building Management System. Communication performance varies with building automation system manufacturer and some experimentation with other baud rates may be required to obtain the best performance.

Table 5: Common Settings

After an address change has been made, the Links XPS module must be power cycled for the change to take effect. The module may take up to 60 seconds to restart after a power cycle.

23 | Links XPS for MHTC

Figure 17: Retrieval of Protocessor Software Tool

Part B: Device Instance and MAC address different values

First, ensure the addressing dipswitches (mentioned in Part A) for Bank SW3 are all set to OFF or are set to 128 or higher. Also ensure your Baud rate dipswitches are properly set (Bank SW4) see previous chapter for details.

The device instance and BACnet MAC address can now be changed to be different values using a free software tool. To obtain this program, visit the link below, and then download and install the latest version of the “Utility Software” (8 MB file called Install.zip).

www.protocessor.com/tech-support/utilities-and-design-documents.php

Links XPS for MHTC | 24

Once the free tool has been downloaded to a computer (preferably a laptop), extract and install it. NOTE: you will require administrative privileges on the computer to perform the installation, contact your network administrator for assistance. Once completed, use the following steps to perform the addressing changes:

To change the Device Instance and MAC Address:

1. Connect the computer to the ethernet port of the Links XPS module. (you will need a

Category 5 or better cable (CAT5)

2. Power up the Links XPS module. During the boot process 8 multi-colored LED’s may

illuminate.

3. On the computer navigate to Start > Programs > Fieldserver Utilities > Remote User

Interface.

4. A blue window will launch, running a program named “Remote User Interface”. Any Links

XPS models detected will be listed as “Fieldservers discovered on the network”. If no

modules are detected you will receive the following screen:

Figure 18: Screen for No Modules Detected

This error is most likely due to the network configuration of the computer. By default, the Links XPS modules ship with an address of 192.168.10.11. If your computer is not already on the

192.168.10.0 domain, you will need to set your computer IP address to a unique address within this range. You may need to turn off or disable any wireless connections before beginning to avoid conflicts. For Windows systems, this setting is located in:

25 | Links XPS for MHTC

Windows XP: Start > Control Panel > Network Connections Windows Vista, 7: Start > Control Panel > Network and Sharing Center Windows 8.1: Desktop Start (right click) > Control Panel > Network and Sharing Center

Select your Ethernet or Local Area Connection, right click, and select Properties. In the Window that pops up, locate the Internet Protocol (TCP/IPv4) and click it to highlight it. Next click the Properties button. Take note of your existing settings as will need to re-enter them later, then enter the settings below: ( IP= 192.168.10.99, subnet=255.255.255.0, gateway=192.168.10.1)

Figure 19: Internet Protocol Properties Screen

Click OK on both of the open windows, and your connection will reset with the new settings. After about 30 seconds, it will be ready to use.

Links XPS for MHTC | 26

When the Remote User Interface successfully detects a Links Module you should see a screen similar to below:

Figure 20: Remote User Interface Successfully Detects Links XPS Module

When the device has been detected and appears in the list, press the number listed to the left of it (usually 1) to select it. This will bring up a prompt to reset the time. Type Y to continue, you will next be greeted with the main menu.

27 | Links XPS for MHTC

Figure 21: Main Menu Screen

Figure 22: Retrieving the Configuration File

Figure 23: Retrieval Complete

From the Main Menu, type U for Upload. You will be prompted with the following screen:

Type U once more to initiate retrieval of the configuration file.

Links XPS for MHTC | 28

Figure 24: Changing The MAC Address

Once transfer is complete you may type N which automatically opens the retrieved file into Notepad . Note: file is named config.csv and is located in configuration File Folder (Start>Programs>Fieldserver Utitlities>Configuration File Folder). Do not open the file in Microsoft Excel, you may accidentally corrupt it.

Once the configuration file is open in Notepad, you will have to change addressing at two locations.

Modifying MAC address: Use the Ctrl and F key to bring up the find command. Type in the find command, the words “common information”. The following screen should appear:

Below the words Common Information, you will see the number 11, this is the default MAC address, change as desired. Note: MAC address must be between 1-254 Inclusive.

29 | Links XPS for MHTC

Figure 25: Changing the Device Instance

Modifying Device Instance: Once again, use the Ctrl and F key to bring up the find command. Type in the find command, the words “server side nodes”. The following screen should appear:

Below the words Server Side Nodes, you will see the number 11, this is the default Device Instance, change as desired. Note: Device Instance must be between 1-16’777’215 Inclusive.

Once complete, save the notepad file and close it. Return to the Remote User Interface program and press Esc until you return to the Main Menu

Links XPS for MHTC | 30

Figure 26: Returning the Configuration File Back to Links XPS module

Type D for download, you will be prompted with the following screen:

Type D once more to return the configuration file back to the Links XPS module. Once download is completed, you can type the “Esc” key until you return to the main menu. Next select ! (Hold the Shift key and press the 1 key simultaneously) to restart the module causing the changes to take effect.

31 | Links XPS for MHTC

Figure 27: Restarting the XPS Module

Figure 28: Awaiting Reboot of the XPS Module

The following screen will appear:

Links XPS for MHTC | 32

Press the Esc key to return to the discovery screen. The screen will remain in discovery mode until the Links XPS module has successfully completed the reboot. Once reboot complete, you may disconnect your laptop from the Links XPS module and verify that your BMS can discover the humidifier.

Changing the IP Address (BACnet IP)

The IP address of the module can also be configured for BACnet IP networks. To configure the IP address, a freely downloadable configuration program is required as mentioned in the previous chapter.

To change the IP Address:

1. Connect the computer to the ethernet port of the Links XPS module.

2. Power up the module. During the boot process 8 multi-colored LED’s will illuminate and

remain steady. The module is ready when most of these LED’s have turned off.

3. On the computer navigate to Start > Programs > Fieldserver Utilities > Remote User

Interface.

4. A blue window will launch, any Links XPS models detected will be listed as “Fieldservers

discovered on the network”. If no modules are detected you will receive the following

screen:

Figure 29: Screen for No Modules Detected

This error is most likely due to the network configuration of the computer. By default, the Links XPS modules ship with an address of 192.168.10.11. If your computer is not already on the

33 | Links XPS for MHTC

192.168.10.0 domain, you will need to set your computer IP address to a unique address within this range. You may need to turn off or disable any wireless connections before beginning to avoid conflicts. For Windows systems, this setting is located in:

Windows XP: Start > Control Panel > Network Connections Windows Vista, 7: Start > Control Panel > Network and Sharing Center Windows 8.1: Desktop Start (right click) > Control Panel > Network and Sharing Center

Select your Ethernet or Local Area Connection, right click, and select Properties. In the Window that pops up, locate the Internet Protocol (TCP/IPv4) and click it to highlight it. Next click the Properties button. Take note of your existing settings as will need to renter them later, then enter the settings below: ( IP= 192.168.10.99, subnet=255.255.255.0, gateway=192.168.10.1)

Figure 30: Internet Protocol Properties Screen

Click OK on both of the open windows, and your connection will reset with the new settings. After about 30 seconds, it will be ready to use.

Links XPS for MHTC | 34

When Remote User Interface successfully detects a Links Module you should see a screen similar to below:

Figure 31: XPS Module Detected

35 | Links XPS for MHTC

When the device has been detected and appears in the list, press the number listed to the left of it (usually 1) to select it. This will bring up the main menu.

Figure 32: Main Menu

Press I to change the IP address. This will bring up the IP address settings.

Figure 33: Changing IP Address

Links XPS for MHTC | 36

To edit the IP address, press the 1 key, type in the desired address, and then press Enter once. Repeat the process for the Netmask (selection 2), and the Gateway (selection 3). For most reliable performance, activating DHCP is not recommended.

When the IP address change is completed press Esc to return to the main menu. Next select ! (Hold the Shift key and press the 1 key simultaneously) to restart the module causing the changes to take effect.

Figure 34: Restarting XPS Module

Press any key to exit this screen. The module will reboot and may take up to 1 minute to fully restart. If you changed the IP address significantly, the module may no longer be reachable with your IP address settings resulting in the same error described in step 4

To rectify this, change your IP address to a unique address in the same domain as the one you entered for the Fieldserver by following the instructions in step 4. Once communication has been re-established, you can quickly verify the change was successful by noting the address displayed under “Fieldservers discovered on the network”.

When completed, be sure to restore your existing IP address settings for your computer

following the instructions in step 4 and substituting the settings you had noted originally.

37 | Links XPS for MHTC

Network Integration

LonWorks.xif file

To facilitate the integration of a LonWorks unit within a network, it may be desirable to obtain an External Interface File (XIF). Files of type .xif are used to convey the resources, specific objects and data types which a 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 configured off-line. Once the configuration is done, the integrator's software tool can be connected to the actual system and the configuration information can be downloaded.

Retrieving XIF File Instructions

The XIF file can be retrieved directly from the Links XPS Module. A Windows based laptop and an Ethernet cable are required for this process.

This process requires the “Remote User Interface” tool from Protocessor described earlier in this manual. It is available by visiting www.protocessor.com/tech-support/utilities-and-design-

documents.php and download and install the “Utility” software.

Once this software has been installed, follow the following procedure:

1. Locate desired MASTER humidifier that contains the Links package. Ensure unit is powered

on and remove the panel on the RIGHT side of the humidifier. Locate the Links package inside of the unit.

2. For LINKS XPS packages (gateway device on its own), connect the CAT5 cable directly into

the Ethernet port on the gateway.

3. Connect other end of CAT5 cable to the Ethernet port on the laptop.

4. Run the “Remote User Interface” utility by double clicking the shortcut on your desktop (or

Start>Programs>Fieldserver Utilities>Remote User Interface)

5. The program should automatically recognize connected humidifier and bring you to the

“Main Menu”. If it does not, contact Nortec Technical Services at the number on the back

cover of this manual.

6. Type “u” for upload.

7. Type “o” for other. (A warning will appear, press any key to continue.)

8. Type “r” for remote.

9. Enter “fserver.xif”’ and hit the ‘enter’ key.

10. Type “u” to initiate upload from the gateway to the laptop.

Links XPS for MHTC | 38

11. The .xif file will be saved in the folder “Configuration File Folder” located at

Start>Programs>Fieldserver Utilities>Configuration File Folder.

12. Type ‘q’ twice to exit out of the program

13. Locate file in Configuration File Folder and change name to corresponding humidifier, (ex,

“fserverH1.xif” for Humidifier 1)

14. Repeat this procedure for all Master humidifiers changing the name of the .xif once saved

to correspond with the tag of the appropriate humidifier.

39 | Links XPS for MHTC

In the variable name, “_x” denotes the humidifier number. If there is only one 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” and so on. If unsure of the unit number, each unit will have a

label, in the electrical compartment close to the terminal strip, indicating the device instance of each humidifier.

BACnet Pics and Bibs

The Protocol Implementation Conformance Statement or “PICS” describes the BACnet

capabilities of a particular BACnet implementation. It is a written document, created by the manufacturer of a device, which identifies the particular options specified by BACnet that are implemented in the device.

BACnet Interoperability Building Blocks (BIBBs) describe a list of services a BACnet device provides. The main areas that the building blocks are concerned with include: data sharing, trends, schedules, device and system management. BIBBs help specify the interoperability capabilities of a BACnet device. Please contact the factory to obtain a PICS statement or BIBBs profile.

Variable Definition

Nortec Links XPS 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 6. Network variable addresses for the humidifiers may be seen in Table 7 to Table 14.

Links XPS for MHTC | 40

Variable Namee

R = Read

W = Write

Description

nviCapLimit_x

W

Analog Value

Sets humidifier capacity limit (50-100%) Example: 500 = 50%, 1000=100%

nvoCapLimit_x

R

Analog Value

Read Manual capacity (50-100%) Example: 500 = 50%, 1000=100%

nviRHDem1_x

W

Analog Value

Writes channel 1 demand or %RH. Allows BAS control of output. (0 - 100%). Unit must be configured to accept network demand.

Example: 500 = 50%, 1000=100%

nvoRHDem1_x

R

Analog Value

Reads channel 1 demand or %RH. Allows BAS control of output. (0 - 100%). Unit must be configured to accept network demand.

Example: 500 = 50%, 1000=100%

nviSet1_x

W

Analog Value

Writes setpoint when humidifier is operating on sensor/transducer controls. Acceptable values are 10 - 90 %.

Example: 500 = 50%, 900=90%

nvoSet1_x

R

Analog Value

Reads setpoint when humidifier is operating on sensor/transducer controls. Acceptable values are 10 - 90 %.

Example: 500 = 50%, 900=90%

nviDisable_x

W

Binary Value

Allows for remote disable of humidifier. 0 = Run 1 = Disable

nvoDisable_x

R

Binary Value

Checks remote disable status. 0 = Run 1 = Disable

nviNetSensor_x

W

Binary Value

Configures unit to look for either hardwired controls or control value written from building automation system. 0 = Hard wired controls 1 = Network controls

nvoNetSensor_x

R

Binary Value

Checks current control source. 0 = Hard Wired 1 = Network

nvoFault_x

R

Binary Value

Reads fault status. 0 = Normal operation 1 = Unit Fault

nvoSecurity_x

R

Binary Value

Checks status of security loop (on/off controls wired in series between terminals 1 and 2 on the low voltage terminal strip). Humidifier will only operate if loop is closed. 0 = Open 1 = Closed

nvoService_x

R

Binary Value

Checks service light status. 0 = Normal operation 1 = Service required, check humidifier display for information.

nviHum_Control_x

W

Analog Value

Change control type that humidifier is accepting. Warning: Check physical control type before modifying. 0 = Demand signal 1 = On/Off signal 2 = Transducer (sensed %RH), humidifier uses proportional algorithm 3 = Transducer (sensed %RH), humidifier uses proportionalintegral algorithm

Table 6: Variable Definitions

41 | Links XPS for MHTC

Variable Name

R=Read

W=Write

Description

nvoHum_Control_x

R

Analog Value

Read control mode status. 0 = Demand Signal 1 = On/Off signal 2 = Sensed RH signal, humidifier used proportional algorithm 3 = Sensed RH signal, humidifier uses proportional-integral algorithm

nvoServTime_x

R

Analog Value

Indicates operation hours.

nvoPumpRunHr_x

R

Analog Value

Indicates total run hours of pump since manufacture.

nvoUVRunHr_x

R

Analog Value

Indicates total run hours of UV since last reset.

nvoStage1Dem_x

R

Binary Value

Indicates if stage 1 is actively humidifying. 1 = On 2 = Off

nvoStage2Dem_x

R

Binary Value

Indicates if stage 2 is actively humidifying. 1 = On 2 = Off

nvoStage3Dem_x

R

Binary Value

Indicates if stage 3 is actively humidifying. 1 = On 2 = Off

nvoWarning_x

R

Binary Value

Indicates that a warning is present on the humidifier. Check humidifier display for warning information. 1 = Warning 0 = No Warning

nvoCleaning_x

R

Binary Value

Indicates that a cleaning cycle is active. 1 = Clean Cycle Active 0 = Inactive

nvoTankDrain_x

R

Binary Value

Indicates that tank drain is active. 1 = Drain Cycle Active 0 = Inactive

nvoTankLevel_x

R

Binary Value

Indicates Tank Water Level. 1 = Full Water 0 = Below Full

Table 6: Variable Definitions - CONTINUED

Links XPS for MHTC | 42

Unit #1

BACnet

Lonworks

N2

Variable Name

Type

Instance

SNVT

SNVT #

NV Index

Type

Instance

nvoServTime_1

AV 1 SNVT_lev_count_f

55

1

Ana_Output

1

nvoPumpRunHr_1

AV 2 SNVT_lev_count_f

55

2

Ana_Output

2

nvoUVRunHr_1

AV 3 SNVT_lev_count_f

55

3

Ana_Output

3

nvoSet1_1

AV 4 SNVT_lev_count_f

55

4

Ana_Output

4

nvoHum_Control_1

AV 5 SNVT_lev_count_f

55

5

Ana_Output

5

nvoCapLimit_1

AV 6 SNVT_lev_count_f

55

6

Ana_Output

6

nvoRHDem1_1

AV 7 SNVT_lev_count_f

55

7

Ana_Output

7

nviSet1_1

AV 8 SNVT_lev_count_f

55

8

Ana_Output

8

nviRHDem1_1

AV 9 SNVT_lev_count_f

55

9

Ana_Output

9

nviHum_Control_1

AV

10

SNVT_lev_count_f

55

10

Ana_Output

10

nviCapLimit_1

AV

11

SNVT_lev_count_f

55

11

Ana_Output

11

nvoNetSensor_1

BV 1 SNVT_switch

95

12

Dig_Output

1

nvoDisable_1

BV 2 SNVT_switch

95

13

Dig_Output

2

nvoStage1Dem_1

BV 3 SNVT_switch

95

14

Dig_Output

3

nvoStage2Dem_1

BV 4 SNVT_switch

95

15

Dig_Output

4

nvoStage3Dem_1

BV 5 SNVT_switch

95

16

Dig_Output

5

nvoWarning_1

BV 6 SNVT_switch

95

17

Dig_Output

6

nvoService_1

BV 7 SNVT_switch

95

18

Dig_Output

7

nvoFault_1

BV 8 SNVT_switch

95

19

Dig_Output

8

nvoCleaning_1

BV 9 SNVT_switch

95

20

Dig_Output

9

nvoTankDrain_1

BV

10

SNVT_switch

95

21

Dig_Output

10

nvoSecurity_1

BV

11

SNVT_switch

95

22

Dig_Output

11

nvoTankLevel_1

BV

12

SNVT_switch

95

23

Dig_Output

12

nviNetSensor_1

BV

13

SNVT_switch

95

24

Dig_Output

13

nviDisable_1

BV

14

SNVT_switch

95

25

Dig_Output

14

Table 7: Humidifier Variable Addresses – Unit #1

MHTC Links XPS Variable Listing and Default Settings Default BACnet/IP Address: 192.168.10.11; Subnet: 255.255.255.0 Default BACnet/MSTP: MAC Address = 11, Device Instance = 11 Default Johnson N2 Address: 11

43 | Links XPS for MHTC

Unit #2

BACnet

Lonworks

N2

Variable Name

Type

Instance

SNVT

SNVT #

NV Index

Type

Instance

nvoServTime_2

AV

12

SNVT_lev_count_f

55

26

Ana_Output

12

nvoPumpRunHr_2

AV

13

SNVT_lev_count_f

55

27

Ana_Output

13

nvoUVRunHr_2

AV

14

SNVT_lev_count_f

55

28

Ana_Output

14

nvoSet1_2

AV

15

SNVT_lev_count_f

55

29

Ana_Output

15

nvoHum_Control_2

AV

16

SNVT_lev_count_f

55

30

Ana_Output

16

nvoCapLimit_2

AV

17

SNVT_lev_count_f

55

31

Ana_Output

17

nvoRHDem1_2

AV

18

SNVT_lev_count_f

55

32

Ana_Output

18

nviSet1_2

AV

19

SNVT_lev_count_f

55

33

Ana_Output

19

nviRHDem1_2

AV

20

SNVT_lev_count_f

55

34

Ana_Output

20

nviHum_Control_2

AV

21

SNVT_lev_count_f

55

35

Ana_Output

21

nviCapLimit_2

AV

22

SNVT_lev_count_f

55

36

Ana_Output

22

nvoNetSensor_2

BV

15

SNVT_switch

95

37

Dig_Output

15

nvoDisable_2

BV

16

SNVT_switch

95

38

Dig_Output

16

nvoStage1Dem_2

BV

17

SNVT_switch

95

39

Dig_Output

17

nvoStage2Dem_2

BV

18

SNVT_switch

95

40

Dig_Output

18

nvoStage3Dem_2

BV

19

SNVT_switch

95

41

Dig_Output

19

nvoWarning_2

BV

20

SNVT_switch

95

42

Dig_Output

20

nvoService_2

BV

21

SNVT_switch

95

43

Dig_Output

21

nvoFault_2

BV

22

SNVT_switch

95

44

Dig_Output

22

nvoCleaning_2

BV

23

SNVT_switch

95

45

Dig_Output

23

nvoTankDrain_2

BV

24

SNVT_switch

95

46

Dig_Output

24

nvoSecurity_2

BV

25

SNVT_switch

95

47

Dig_Output

25

nvoTankLevel_2

BV

26

SNVT_switch

95

48

Dig_Output

26

nviNetSensor_2

BV

27

SNVT_switch

95

49

Dig_Output

27

nviDisable_2

BV

28

SNVT_switch

95

50

Dig_Output

28

Table 8: Humidifier Variable Addresses - Unit #2

Links XPS for MHTC | 44

Unit #3

BACnet

Lonworks

N2

Variable Name

Type

Instance

SNVT

SNVT #

Element

Type

Instance

nvoServTime_3

AV

23

SNVT_lev_count_f

55

51

Ana_Output

23

nvoPumpRunHr_3

AV

24

SNVT_lev_count_f

55

52

Ana_Output

24

nvoUVRunHr_3

AV

25

SNVT_lev_count_f

55

53

Ana_Output

25

nvoSet1_3

AV

26

SNVT_lev_count_f

55

54

Ana_Output

26

nvoHum_Control_3

AV

27

SNVT_lev_count_f

55

Ana_Output

27

nvoCapLimit_3

AV

28

SNVT_lev_count_f

55

56

Ana_Output

28

nvoRHDem1_3

AV

29

SNVT_lev_count_f

55

57

Ana_Output

29

nviSet1_3

AV

30

SNVT_lev_count_f

55

58

Ana_Output

30

nviRHDem1_3

AV

31

SNVT_lev_count_f

55

59

Ana_Output

31

nviHum_Control_3

AV

32

SNVT_lev_count_f

55

60

Ana_Output

32

nviCapLimit_3

AV

33

SNVT_lev_count_f

55

61

Ana_Output

33

nvoNetSensor_3

BV

29

SNVT_switch

95

62

Dig_Output

29

nvoDisable_3

BV

30

SNVT_switch

95

63

Dig_Output

30

nvoStage1Dem_3

BV

31

SNVT_switch

95

64

Dig_Output

31

nvoStage2Dem_3

BV

32

SNVT_switch

95

65

Dig_Output

32

nvoStage3Dem_3

BV

33

SNVT_switch

95

66

Dig_Output

33

nvoWarning_3

BV

34

SNVT_switch

95

67

Dig_Output

34

nvoService_3

BV

35

SNVT_switch

95

68

Dig_Output

35

nvoFault_3

BV

36

SNVT_switch

95

69

Dig_Output

36

nvoCleaning_3

BV

37

SNVT_switch

95

70

Dig_Output

37

nvoTankDrain_3

BV

38

SNVT_switch

95

71

Dig_Output

38

nvoSecurity_3

BV

39

SNVT_switch

95

72

Dig_Output

39

nvoTankLevel_3

BV

40

SNVT_switch

95

73

Dig_Output

40

nviNetSensor_3

BV

41

SNVT_switch

95

74

Dig_Output

41

nviDisable_3

BV

42

SNVT_switch

95

75

Dig_Output

42

Table 9: Humidifier Variable Addresses - Unit #3

45 | Links XPS for MHTC

Unit #4

BACnet

Lonworks

N2

Variable Name

Type

Instance

SNVT

SNVT #

Element

Type

Instance

nvoServTime_4

AV

34

SNVT_lev_count_f

55

76

Ana_Output

34

nvoPumpRunHr_4

AV

35

SNVT_lev_count_f

55

77

Ana_Output

35

nvoUVRunHr_4

AV

36

SNVT_lev_count_f

55

78

Ana_Output

36

nvoSet1_4

AV

37

SNVT_lev_count_f

55

79

Ana_Output

37

nvoHum_Control_4

AV

38

SNVT_lev_count_f

55

80

Ana_Output

38

nvoCapLimit_4

AV

39

SNVT_lev_count_f

55

81

Ana_Output

39

nvoRHDem1_4

AV

40

SNVT_lev_count_f

55

82

Ana_Output

40

nviSet1_4

AV

41

SNVT_lev_count_f

55

83

Ana_Output

41

nviRHDem1_4

AV

42

SNVT_lev_count_f

55

84

Ana_Output

42

nviHum_Control_4

AV

43

SNVT_lev_count_f

55

85

Ana_Output

43

nviCapLimit_4

AV

44

SNVT_lev_count_f

55

86

Ana_Output

44

nvoNetSensor_4

BV

43

SNVT_switch

95

87

Dig_Output

43

nvoDisable_4

BV

44

SNVT_switch

95

88

Dig_Output

44

nvoStage1Dem_4

BV

45

SNVT_switch

95

89

Dig_Output

45

nvoStage2Dem_4

BV

46

SNVT_switch

95

90

Dig_Output

46

nvoStage3Dem_4

BV

47

SNVT_switch

95

91

Dig_Output

47

nvoWarning_4

BV

48

SNVT_switch

95

92

Dig_Output

48

nvoService_4

BV

49

SNVT_switch

95

93

Dig_Output

49

nvoFault_4

BV

50

SNVT_switch

95

94

Dig_Output

50

nvoCleaning_4

BV

51

SNVT_switch

95

Dig_Output

51

nvoTankDrain_4

BV

52

SNVT_switch

95

96

Dig_Output

52

nvoSecurity_4

BV

53

SNVT_switch

95

97

Dig_Output

53

nvoTankLevel_4

BV

54

SNVT_switch

95

98

Dig_Output

54

nviNetSensor_4

BV

55

SNVT_switch

95

99

Dig_Output

55

nviDisable_4

BV

56

SNVT_switch

95

100

Dig_Output

56

Table 10: Humidifier Variable Addresses - Unit #4

Links XPS for MHTC | 46

Unit #5

BACnet

Lonworks

N2

Variable Name

Type

Instance

SNVT

SNVT #

Element

Type

Instance

nvoServTime_5

AV

45

SNVT_lev_count_f

55

101

Ana_Output

45

nvoPumpRunHr_5

AV

46

SNVT_lev_count_f

55

102

Ana_Output

46

nvoUVRunHr_5

AV

47

SNVT_lev_count_f

55

103

Ana_Output

47

nvoSet1_5

AV

48

SNVT_lev_count_f

55

104

Ana_Output

48

nvoHum_Control_5

AV

49

SNVT_lev_count_f

55

105

Ana_Output

49

nvoCapLimit_5

AV

50

SNVT_lev_count_f

55

106

Ana_Output

50

nvoRHDem1_5

AV

51

SNVT_lev_count_f

55

107

Ana_Output

51

nviSet1_5

AV

52

SNVT_lev_count_f

55

108

Ana_Output

52

nviRHDem1_5

AV

53

SNVT_lev_count_f

55

109

Ana_Output

53

nviHum_Control_5

AV

54

SNVT_lev_count_f

55

110

Ana_Output

54

nviCapLimit_5

AV

55

SNVT_lev_count_f

55

111

Ana_Output

55

nvoNetSensor_5

BV

57

SNVT_switch

95

112

Dig_Output

57

nvoDisable_5

BV

58

SNVT_switch

95

113

Dig_Output

58

nvoStage1Dem_5

BV

59

SNVT_switch

95

114

Dig_Output

59

nvoStage2Dem_5

BV

60

SNVT_switch

95

115

Dig_Output

60

nvoStage3Dem_5

BV

61

SNVT_switch

95

116

Dig_Output

61

nvoWarning_5

BV

62

SNVT_switch

95

117

Dig_Output

62

nvoService_5

BV

63

SNVT_switch

95

118

Dig_Output

63

nvoFault_5

BV

64

SNVT_switch

95

119

Dig_Output

64

nvoCleaning_5

BV

65

SNVT_switch

95

120

Dig_Output

65

nvoTankDrain_5

BV

66

SNVT_switch

95

121

Dig_Output

66

nvoSecurity_5

BV

67

SNVT_switch

95

122

Dig_Output

67

nvoTankLevel_5

BV

68

SNVT_switch

95

123

Dig_Output

68

nviNetSensor_5

BV

69

SNVT_switch

95

124

Dig_Output

69

nviDisable_5

BV

70

SNVT_switch

95

125

Dig_Output

70

Table 11: Humidifier Variable Addresses - Unit #5

47 | Links XPS for MHTC

Unit #6

BACnet

Lonworks

N2

Variable Name

Type

Instance

SNVT

SNVT #

Element

Type

Instance

nvoServTime_6

AV

56

SNVT_lev_count_f

55

126

Ana_Output

56

nvoPumpRunHr_6

AV

57

SNVT_lev_count_f

55

127

Ana_Output

57

nvoUVRunHr_6

AV

58

SNVT_lev_count_f

55

128

Ana_Output

58

nvoSet1_6

AV

59

SNVT_lev_count_f

55

129

Ana_Output

59

nvoHum_Control_6

AV

60

SNVT_lev_count_f

55

130

Ana_Output

60

nvoCapLimit_6

AV

61

SNVT_lev_count_f

55

131

Ana_Output

61

nvoRHDem1_6

AV

62

SNVT_lev_count_f

55

132

Ana_Output

62

nviSet1_6

AV

63

SNVT_lev_count_f

55

133

Ana_Output

63

nviRHDem1_6

AV

64

SNVT_lev_count_f

55

134

Ana_Output

64

nviHum_Control_6

AV

65

SNVT_lev_count_f

55

135

Ana_Output

65

nviCapLimit_6

AV

66

SNVT_lev_count_f

55

136

Ana_Output

66

nvoNetSensor_6

BV

71

SNVT_switch

95

137

Dig_Output

71

nvoDisable_6

BV

72

SNVT_switch

95

138

Dig_Output

72

nvoStage1Dem_6

BV

73

SNVT_switch

95

139

Dig_Output

73

nvoStage2Dem_6

BV

74

SNVT_switch

95

140

Dig_Output

74

nvoStage3Dem_6

BV

75

SNVT_switch

95

141

Dig_Output

75

nvoWarning_6

BV

76

SNVT_switch

95

142

Dig_Output

76

nvoService_6

BV

77

SNVT_switch

95

143

Dig_Output

77

nvoFault_6

BV

78

SNVT_switch

95

144

Dig_Output

78

nvoCleaning_6

BV

79

SNVT_switch

95

145

Dig_Output

79

nvoTankDrain_6

BV

80

SNVT_switch

95

146

Dig_Output

80

nvoSecurity_6

BV

81

SNVT_switch

95

147

Dig_Output

81

nvoTankLevel_6

BV

82

SNVT_switch

95

148

Dig_Output

82

nviNetSensor_6

BV

83

SNVT_switch

95

149

Dig_Output

83

nviDisable_6

BV

84

SNVT_switch

95

150

Dig_Output

84

Table 12: Humidifier Variable Addresses - Unit #6

Links XPS for MHTC | 48

Unit #7

BACnet

Lonworks

N2

Variable Name

Type

Instance

SNVT

SNVT #

Element

Type

Instance

nvoServTime_7

AV

67

SNVT_lev_count_f

55

151

Ana_Output

67

nvoPumpRunHr_7

AV

68

SNVT_lev_count_f

55

152

Ana_Output

68

nvoUVRunHr_7

AV

69

SNVT_lev_count_f

55

153

Ana_Output

69

nvoSet1_7

AV

70

SNVT_lev_count_f

55

154

Ana_Output

70

nvoHum_Control_7

AV

71

SNVT_lev_count_f

55

155

Ana_Output

71

nvoCapLimit_7

AV

72

SNVT_lev_count_f

55

156

Ana_Output

72

nvoRHDem1_7

AV

73

SNVT_lev_count_f

55

157

Ana_Output

73

nviSet1_7

AV

74

SNVT_lev_count_f

55

158

Ana_Output

74

nviRHDem1_7

AV

75

SNVT_lev_count_f

55

159

Ana_Output

75

nviHum_Control_7

AV

76

SNVT_lev_count_f

55

160

Ana_Output

76

nviCapLimit_7

AV

77

SNVT_lev_count_f

55

161

Ana_Output

77

nvoNetSensor_7

BV

85

SNVT_switch

95

162

Dig_Output

85

nvoDisable_7

BV

86

SNVT_switch

95

163

Dig_Output

86

nvoStage1Dem_7

BV

87

SNVT_switch

95

164

Dig_Output

87

nvoStage2Dem_7

BV

88

SNVT_switch

95

165

Dig_Output

88

nvoStage3Dem_7

BV

89

SNVT_switch

95

166

Dig_Output

89

nvoWarning_7

BV

90

SNVT_switch

95

167

Dig_Output

90

nvoService_7

BV

91

SNVT_switch

95

168

Dig_Output

91

nvoFault_7

BV

92

SNVT_switch

95

169

Dig_Output

92

nvoCleaning_7

BV

93

SNVT_switch

95

170

Dig_Output

93

nvoTankDrain_7

BV

94

SNVT_switch

95

171

Dig_Output

94

nvoSecurity_7

BV

95

SNVT_switch

95

172

Dig_Output

95

nvoTankLevel_7

BV

96

SNVT_switch

95

173

Dig_Output

96

nviNetSensor_7

BV

97

SNVT_switch

95

174

Dig_Output

97

nviDisable_7

BV

98

SNVT_switch

95

175

Dig_Output

98

Table 13: Humidifier Variable Addresses - Unit #7

49 | Links XPS for MHTC

Unit #8

BACnet

Lonworks

N2

Variable Name

Type

Instance

SNVT

SNVT #

Element

Type

Instance

nvoServTime_8

AV

78

SNVT_lev_count_f

55

176

Ana_Output

78

nvoPumpRunHr_8

AV

79

SNVT_lev_count_f

55

177

Ana_Output

79

nvoUVRunHr_8

AV

80

SNVT_lev_count_f

55

178

Ana_Output

80

nvoSet1_8

AV

81

SNVT_lev_count_f

55

179

Ana_Output

81

nvoHum_Control_8

AV

82

SNVT_lev_count_f

55

180

Ana_Output

82

nvoCapLimit_8

AV

83

SNVT_lev_count_f

55

181

Ana_Output

83

nvoRHDem1_8

AV

84

SNVT_lev_count_f

55

182

Ana_Output

84

nviSet1_8

AV

85

SNVT_lev_count_f

55

183

Ana_Output

85

nviRHDem1_8

AV

86

SNVT_lev_count_f

55

184

Ana_Output

86

nviHum_Control_8

AV

87

SNVT_lev_count_f

55

185

Ana_Output

87

nviCapLimit_8

AV

88

SNVT_lev_count_f

55

186

Ana_Output

88

nvoNetSensor_8

BV

99

SNVT_switch

95

187

Dig_Output

99

nvoDisable_8

BV

100

SNVT_switch

95

188

Dig_Output

100

nvoStage1Dem_8

BV

101

SNVT_switch

95

189

Dig_Output

101

nvoStage2Dem_8

BV

102

SNVT_switch

95

190

Dig_Output

102

nvoStage3Dem_8

BV

103

SNVT_switch

95

191

Dig_Output

103

nvoWarning_8

BV

104

SNVT_switch

95

192

Dig_Output

104

nvoService_8

BV

105

SNVT_switch

95

193

Dig_Output

105

nvoFault_8

BV

106

SNVT_switch

95

194

Dig_Output

106

nvoCleaning_8

BV

107

SNVT_switch

95

195

Dig_Output

107

nvoTankDrain_8

BV

108

SNVT_switch

95

196

Dig_Output

108

nvoSecurity_8

BV

109

SNVT_switch

95

197

Dig_Output

109

nvoTankLevel_8

BV

110

SNVT_switch

95

198

Dig_Output

110

nviNetSensor_8

BV

111

SNVT_switch

95

199

Dig_Output

111

nviDisable_8

BV

112

SNVT_switch

95

200

Dig_Output

112

Table 14: Humidifier Variable Addresses - Unit #8

Links XPS for MHTC | 50

MHTC

Configuration Variables nviNetSensor_x = 1

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 = 0 No Service Required nvoFault_x = 1 Fault = 0 No Fault nvoSysDemand_x = System Demand (0-100%) nvoDisable_x = 1 Unit Disabled = 0 Unit Enabled

Configuration Variables nviNetSensor_x = 1

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 = 0 No Service Required nvoFault_x = 1 Fault = 0 No Fault nvoSysDemand_x = System Demand (0-100%) nvoDisable_x = 1 Unit Disabled

= 0 Unit Enabled

MHTC

Figure 35: Sample Humidification Applications, Room-Sensed %RH

Feedback with Duct Hi-Limit Sensing

Figure 36: Sample Humidification Applications, Control Feedback

(0-100%) with Duct Hi-Limit Sensing

Links XPS for NHTC | 51

Configuration Variables nviNetSensor_x = 0

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 = 0 No Service Required nvoFault_x = 1 Fault = 0 No Fault nvoSysDemand_x = System Demand(0-100%) nvoDisable_x = 1 Unit Disabled

= 0 Unit Enabled

MHTC

Figure 30: Sample Humidfication Applications, Room-

Sensed %RH Feedback with Duct High-Limit Sensing (0-

10V Signal Directly to Humidifier)

52 | Links XPS for NHTC

Humidifier-to-Humidifier Connection:

Each individual humidifier linked to lead unit.



Connection must be daisy-chained from the lead unit to the end unit, with shield wire connected only on the lead unit.



Check that each humidifier has a unique modbus address.



BMS Network Connection:

Lead unit wired to BMS system (Twisted Pair or Ethernet).



Network activity verified.



Shields should be connected at BMS end only.



Controls Wired:

Directly to humidifiers or through BMS network.



Ensure power is being supplied to the humidifier, NORTEC Links Module. For BACnet/IP adjust network IP settings. (If this information is provided, factory will perform necessary IP assignment).



After power-up, verify network communication.



Map desired network variables to BMS.



Verify variable operation after mapping is complete.



Perform regular humidifier start-up check.



Nortec Links XPS Start-up Checklist

Wiring

Start-up Procedure

54 | Links XPS for NHTC

Figure 318: XPS BACnet Module LED

Troubleshooting

When troubleshooting the communication process for Links XPS modules should be kept in mind. Humidifier data is received by the NORTEC Links module using the modbus rtu protocol over the serial port connection. The Links module then translates the data to the desired protocol for connection over the networks.

Indicator Lights

There is a variety of status LEDs on the Links XPS module to aid in the diagnosis of communication problems. Please refer to the following figures for locations and meaning

Links XPS for NHTC | 55

Figure 39: XPS LonWorks Module LED

56 | Links XPS for NHTC

Figure 320: Ethernet Port LED

LED Name

Color

Function

Module Power

Off

Indicates that the Links module is not receiving power.

Green

Indicates the Links module is operating normally.

Receive LED (marked as Rx on processor board)

Flashing Green

Indicates that the Links module is receiving a network packet from a serial connection.

Transmit LED (marked as Tx on processor board)

Flashing Green

Indicates that the Links module is transmitting a network packet on a serial connection.

Ethernet LINK

Off

Indicates no Ethernet connection is present.

Solid Yellow

Indicates an Ethernet connection has been detected.

Ethernet Activity

Off

No Ethernet network activity.

Flashing Green

Indicates Ethernet activity.

Table 15: Links XPS Module Diagnostic LEDs

Links XPS for NHTC | 57

Problem

Solution

The BMS network cannot read/write any information to any of the networked humidifiers

Verify that the network connection is made and is connected properly.

Verify that the correct network settings are being used. The Links XPS module may need to be restarted to load the new settings.

Check the Serial Port Activity LED on the Nortec Links module to ensure proper communication from the humidifiers to the Links XPS module.

Check the Ethernet port activity on the Links XPS module to ensure it is receiving data.

Check the transmit and receive status LEDs to determine if there is any network traffic being sent or being received by the Links XPS module from the BMS network

Verify proper connections to networked humidifiers.

Turn the Links XPS module off for several seconds then switch it back on to reload the control program. Allow for some time for the network variables to be polled.

The BMS network can see some of the networked humidifiers but not others.

Ensure network variables are mapped correctly to the BMS.

Ensure proper connections to the humidifiers.

Disconnect all of the humidifiers from the Links XPS package except for the unit that is not responding to the network. Turn the Links XPS package off and then back on. Check if the humidifier can now be seen by the BMS

The BMS network receives information from the networked humidifier(s) but the information is mismatched or the humidifier responds un-expectedly

Verify that the network variables have been mapped to the BMS network correctly. It is possible that the variables have been cross-linked during the network integration process.

Connect humidifiers one at a time and test units individually.

After sending the humidifier a networkbased demand signal the unit powers down after several minutes. The nviNetSensor variable is switched on and a value has been set for the nviRHDem1 variable.

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.

Table 16: Troubleshooting Communication Problems

58 | Links XPS for NHTC

Part

Number

Description

2559194

Links XPS Replacement Module, BACnet / IP / MSTP / N2

2559145

Links XPS Replacement Module, Lonworks

2558811

Isolation Transformer, 24 VAC, 3A, 50/60 HZ

Table 17: Replacement Parts

Links XPS for NHTC | 59

60 | Links XPS for NHTC

Links XPS for NHTC | 61

62 | Links XPS for NHTC



Warranty

Nortec Humidity Inc. and/or Nortec Humidity 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. No warranty is made against corrosion, deterioration, or suitability of substituted materials used as a result of compliance with government regulations.

THE COMPANY’s obligations and liabilities under this warranty are limited to furnishing

replacement parts to the customer, 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.

The warranties set forth herein are in lieu of all other warranties expressed or implied by law. No liability whatsoever shall be attached to THE COMPANY until said products have been paid for in full and then said liability shall be limited to the original purchase price for the product. Any further warranty must be in writing, signed by an officer of THE COMPANY.

THE COMPANY’s limited warranty on accessories, not of the companies manufacture, such as

controls, humidistats, pumps, etc. is limited to the warranty of the original equipment manufacturer from date of original shipment of humidifier.

THE COMPANY makes no warranty and assumes no liability unless the equipment is installed in strict accordance with a copy of the catalog and installation manual in effect at the date of purchase and by a contractor approved by THE COMPANY to install such equipment.

THE COMPANY makes no warranty and assumes no liability whatsoever for consequential damage or damage resulting directly from misapplication, incorrect sizing or lack of proper maintenance of the equipment.

THE COMPANY makes no warranty and assumes no liability whatsoever for damage resulting from freezing of the humidifier, supply lines, drain lines, or steam distribution systems.

THE COMPANY makes no warranty and assumes no liability whatsoever for equipment that has failed due to ambient conditions when installed in locations having climates below 14°F (10°C) during January or above 104°F (40°C) during July.

THE COMPANY retains the right to change the design, specification and performance criteria of its products without notice or obligation.

Links XPS for NHTC | 63

U.S.A.

1860 Renaissance Boulevard Sturtevant, WI 53177

826 Proctor Avenue Ogdensburg, NY 13669

CANADA

2740 Fenton Road Ottawa, Ontario K1T 3T7

TEL: 1.866.NORTEC1 FAX: 613.822.7964

EMAIL: nortec@humidity.com WEBSITE: www.humidity.com