Condair Nortec GSTC User manual

LINKS XPS
Nortec GSTC / SETC
B+ Models
Installation and
Operation Manual
Includes installation, operation
maintenance and troubleshooting
information for your GSTC / Nortec
SETC B+ Links XPS Options.
2559109-H | 30/11/2018
Important: Read and save these instructions. This guide to be left with equipment.

Thank you for choosing Condair
Proprietary Notice
This document and the information disclosed herein are proprietary data of Condair Ltd. Neither this document
nor the information contained herein shall be reproduced used, or disclosed to others without the written
authorization of Condair Ltd., except to the extent required for installation or maintenance of recipient’s
equipment.
Liability Notice
Condair 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 Condair.
Copyright Notice
Copyright 2018, Condair Ltd. All rights reserved.
INSTALLATION DATE (MM/DD/YYYY)
MODEL #
SERIAL #

Contents
1Overview
1Multi-Unit Systems
2BACnet, LonWorks, and N2 Modules
3Wiring the Links XPS Module
6 Configuring the Humidifiers
8 Wiring
8 BACnet MS / TP, Johnson N2, and LonWorks
9 BACnet / IP
10 Gateway Configuration
10 Changing Unit Device Instance and BACnet MAC Address
13 Changing Baud Rate (BACnet MSTP, Johnson N2 LonWorks)
23 Changing the IP Address (BACnet IP)
28 Network Integration
28 LonWorks.xif file
28 Retrieving XIF File Instructions
30 BACnet Pics and Bibs
30 Variable Definition
43 Startup Checklist
44 Troubleshooting
44 Indicator Lights

Links XPS for Nortec GSTC/ SETC B+ |1
Overview
The GS/SE Links XPS Option allows for the integration of a Nortec GSTC/ SETC 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
Protocol
BACnet MS/TP
BACnet / IP
Johnson N2
LonWorks
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.

2 |Links XPS Nortec GSTC/ SETC B+
Field Installation or Retrofit Instructions
BACnet, LonWorks and N2 Modules:
Caution: Disconnect power before performing work inside cabinet.
Remove the Humidifiers front access panel. Install the bracket assembly using 8-32x ½” hex-
drive screws. Notice, 4 screws are used for the hinges, and the 5th screw for fastening the
bracket in place.
Figure 1: Nortec GSTC/ SETC with Links XPS Installed

Links XPS for Nortec GSTC/ SETC B+ |3
Figure 2: Detail of Hinge
Wiring the Links XPS Module
Most of the wiring connections for the new Links XPS module will have already been finished at
the factory, however, there are a few connections that will need to be made to connect the unit
the Nortec GSTC/ SETC series humidifier. Refer the LINKS XPS wiring diagram included in the
package for details.
Module Power Connections: There will be a wire harness provided that will consist of a red and
blue wire. Both red and blue wires are terminated with a ring terminal.
Figure 3: Wires from Links XPS Bracket

4 |Links XPS Nortec GSTC/ SETC B+
a. The ring terminal of the red wire is to be connected to the power terminal on the 24V
side of the transformer located at the bottom, left of the electrical compartment.
b. The ring terminal of the blue wire is to be connected to the ground terminal on the 24V
side of the transformer.

Links XPS for Nortec GSTC/ SETC B+ |5
Humidifier Communication Connection: On the Links XPS assembly there will be a CAT5 cable
with RJ45 connector.
This connector is to be plugged into the jack on the bottom right side of the humidifier main PCB
processor board (Keypad chip).
Figure 4: Backside View of Humidifier PCB Board

6 |Links XPS Nortec GSTC/ SETC B+
Configuring the Humidifiers
The PCB processor board will need to be configured to work with the Links XPS modules. Since
Links XPS can connect to a maximum of 8 units, it will be necessary to set the unit address for
each humidifier. The lead unit can be determined by the presence of the Links XPS module. The
slave humidifiers can be given a unit address according to the number the unit 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 in the Nortec GSTC/ SETC 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 digital. 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 humidistat or building automation
system) leave the Signal Source to Analog and then set REG mode, MOD mode and CNT type to
match the type of controls being used. Ensure that controls are physically wired to terminals 3
and 4 on the low voltage 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 enter the password
0335.
2. Select Control Settings
3. Select Modbus Parameters.
4. Set the communication parity to “None1”.
5. Set the appropriate Modbus address according to the unit ordering
6. Place the appropriate Unit Identifier label on each humidifier. These labels should be placed
on the unit where the electrical control punch-outs are located at the top of the humidifier.
7. Connect the slave humidifiers (if applicable) to the 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 Nortec GSTC/ SETC B+ |7
8. Ensure shield wiring matches the following pattern if distances between humidifiers is
significant(2200 ft):
Figure 5: Multiple Slave Humidifiers

8 |Links XPS Nortec GSTC/ SETC B+
Wiring
BACnet MS/TP, Johnson N2, and LonWorks
Links XPS is pre-installed and factory wired, except for the Nortec SETC-050 which is provided in
its own separate enclosure. Connections must be made between the master humidifier and the
Building Management System (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”. Older A and B
style units use a different connection method, please refer to revision C of this manual.
Table 2 refers to the recommended wire types and maximum recommended lengths from the
Links XPS module to the front-end of the Building Management System. Since communication
between the humidifiers and Links XPS occurs via an EIA-485 signal type, Condair recommends
using an 18-24 AWG shielded, 120 twisted pair wire between the lead humidifier and each of
the slave humidifiers. Total cable length runs between the 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
Protocol
Signal Type
Polarity
Recommended Cable
Maximum Recommended
Distance from Module
A
B
BACnet MS/TP
EIA-485,
2-wire
Net +
Net -
18-24 AWG
Shielded, Twisted Pair
2000 ft at 9,600 bps
2000 ft at 38,400 kbps
Johnson N2
BACnet/IP
LAN standard
N/A
N/A
CAT.5E cable with RJ-45
termination
Depends on cable
manufacturer
LonWorks
FTT-10,
2-wire
Tx
Rx
18-24 AWG
Twisted Pair
Should not exceed 50 ft.

Links XPS for Nortec GSTC/ SETC B+ |9
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.

10 |Links XPS Nortec GSTC/ SETC B+
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 address 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 Unit 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 8. Notice these are the smaller
dipswitches, not the larger ones.
Figure 6: Dipswitches for BACnet Address Changes

Links XPS for Nortec GSTC/ SETC B+ |11
These switches allow you to set a binary value for the device instance between 1 and 127
inclusive. To set the device instance to value outside of this range, skip to PART B. 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:
Figure 7: Respective Address and Baudrate Dipswitches

12 |Links XPS Nortec GSTC/ SETC B+
Table 3: Converting Numbers to Binary
Switch
A8
A7
A6
A5
A4
A3
A2
A1
Setting
Off
On
Off
Off
On
On
On
Off
Binary
0
1
0
0
1
1
1
0
Exponential Meaning
27x 0
26x 1
25x 0
24x 0
23x 1
22x 1
21x 1
20x 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
When adjusting switches be sure to adjust only the switches highlighted in the box in Table 3
above. Also, switches may be in presented 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
Value
A8
A7
A6
A5
A4
A3
A2
A1
0 (cannot be used)
Off
Off
Off
Off
Off
Off
Off
Off
1
Off
Off
Off
Off
Off
Off
Off
On
10
Off
Off
Off
Off
On
Off
On
Off
25
Off
Off
Off
On
On
Off
Off
On
40
Off
Off
On
Off
On
Off
Off
Off
50
Off
Off
On
On
Off
Off
On
Off
75
Off
On
Off
Off
On
Off
On
On
78
Off
On
Off
Off
On
On
On
Off
100
Off
On
On
Off
Off
Off
On
Off
125
Off
On
On
On
On
On
Off
On
127
Off
On
On
On
On
On
On
On
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.

Links XPS for Nortec GSTC/ SETC B+ |13
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 7 for location of the dipswitches.
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
Setting
B4
B3
B2
B1
110
Off
Off
Off
On
300
Off
Off
On
Off
600
Off
Off
On
On
1200
Off
On
Off
Off
2400
Off
On
Off
On
4800
Off
On
On
Off
9600
Off
On
On
On
19200
On
Off
Off
Off
20833
On
Off
Off
On
28800
On
Off
On
Off
38400
On
Off
On
On
57600
On
On
Off
Off
76800
On
On
Off
On
115200
On
On
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.

14 |Links XPS Nortec GSTC/ SETC B+
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
Figure 8: Retrieval of Protocessor Software Tool

Links XPS for Nortec GSTC/ SETC B+ |15
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:
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:
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
Figure 9: Screen for No Modules Detected