Modulating Control Wiring - Nortec SE Series Installation And Operation Manual

Modulating Control Wiring

Humidifier Terminal Strip
2520266 - Digital Duct Humidistat
Package
Analog Out - 3
24 VAC - 2
Ground - 1
25 | Installation
Air Proving
High Limit Humidistat
Switch
Figure 23: Modulating Controls
Connect 24 VAC, terminal 1 of
Nortec SETC/P to terminal
2 of controllers
Figure 24: Digital Modulating Humidistats
Control Humidistat
Note: 1 Install On/Off controls or jumper between
terminal 1 and 2 of humidifier in order to run.
2 Terminal 1 is 24 VAC Hot, turn unit off to
avoid shorting while wiring.
3 High Limit Humidistat must be duct mounted.
It can be On/Off or modulating.
4 Control Humidistat can be mounted in space
or in return air duct and can be On/Off or
modulating.
5 The Nortec SEP can only accept one
modulating signal.
Knockouts provided
in top and bottom panels.
Install strain relief (by others)
1510142 - Digital Wall Humidistat
controls or jumper
.
E
X
T
Insert On/Off
between 1 and 2
1- 24 VAC
2 - On/Off Loop
3 - Ground
4 - Control Signal
5 - Limit Signal (SETC only)
6 - 5 VDC
7 - Ground
8 - Full Tank Blow Down
9 - Ground
10 - Actuator power
11 - Actuator power
12 - 0-10 VDC Out
S
E