Nortec GSTC, Installation Manual

10-00 

Page 2 

2008-02-02

(1) FIELD INSTALLATION OF A SE-50 SERIES NORTEC LINKS 2 REMOTE 

PACKAGE 

A.  STEP 1 - INSTALLATION 

(1)  Mount the LINKS 2 remote package in a convenient location. Note that the remote 

package does not need to be mounted in close proximity to the humidifier. 

(2)  Connect power to the 24VAC and GND terminals of the LINKS 2 terminal strip. This 

may be done in two ways: 

(a) 

A 120VAC to 24VAC plug-in transformer with screw terminals on the secondary 
side has been supplied with this kit. Wire the transformer to the 24VAC and 
GND terminals on the LINKS 2 terminal strip. 

(b) 

Connect power from the humidifier terminal strip (see wiring diagram for 
details).  

NOTE on 2(b) 

Power to LINKS 2 module will be lost when the humidifier is switched off. 

(3)  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 first pin (bottom-most pin) of the TB3 connector. The Net – terminal on 
the module should be connected to the second pin of the TB3 connector. Refer to 
the unit’s wiring diagram for more information. 

A.  STEP 2 – CONFIGURING THE HUMIDIFIERS 

NOTE 

If the LINKS 2 remote package was shipped with the humidifiers, this step will have 
already been performed by the factory. 

(1)  Since Nortec LINKS 2 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 2 module. The slave humidifiers can be given a unit address 
according to the number the unit will have on the networked chain. 

(2)  To set the network address access the User Parameter level in the humidifier 

software menu. Scroll down to Modbus Settings and press enter. 

(3)  In order to change the current modbus address, press the up and down arrows on 

the keypad at the same time. When prompted, enter the code 0335. 

(4)  Once the password is set select the modbus address heading and press enter. Use 

the up and down arrows to change the address setting. 

(5)  Determine the desired humidifier ordering on the network. To change the network 

instance follow step 3 and enter the parameter value of 2 for unit 2, 3 for unit 3 and 
soon.