Nortec SE Series - Manual (Page 28)

25 | Installation
Modulating Control Wiring
Figure 23: Modulating Controls
1
-
G
ro
u
n
d
2
-
2
4
V
A
C
6
-
A
n
a
lo
g
O
u
t
8
-
T
e
m
p
e
ra
tu
re
Insert On/Off
controls or jumper
between 1 and 2
1510142 - Digital Wall Humidistat
1
-
G
ro
u
n
d
2
-
2
4
V
A
C
6
-
A
n
a
lo
g
O
u
t
7
-
A
n
a
lo
g
I
n
8
-
T
e
m
p
e
ra
tu
re
2520266 - Digital Duct Humidistat
Package
S
E
Analog Out - 3
24 VAC - 2
Ground - 1
Connect 24 VAC, terminal
1 of SETC/P to terminal
2 of controllers.
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 -
11 - Actuator power
12 -
Actuator power
0-10 VDC Out
E
X
T
Figure 24: Digital Modulating Humidistats
Install On/Off controls or jumper between
terminal 1 and 2 of humidifier in order to run.
Terminal 1 is 24 VAC Hot, turn unit off to
avoid shorting while wiring.
High Limit Humidistat must be duct mounted.
It can be On/Off or modulating.
Control Humidistat can be mounted in space
or in return air duct and can be On/Off or
modulating.
The SEP can only accept one modulating
signal.
Air Proving
Switch
High Limit Humidistat
Control Humidistat
Humidifier Terminal Strip
Knockouts provided
in top and bottom panels.
Install strain relief (by others)
Note: 1
2
3
4
5