Nortec NH-EL Series - Manual (Page 29)

Installation | 26
Note: 1
2
3
4
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.
Air Proving
Switch
High Limit Humidistat
Control Humidistat
Humidifier Terminal Strip
SPACE
SPACE
Modulating Control Wiring
Figure 19: Modulating Controls
Figure 20: Digital Modulating Humidistats
1
–
C
om
m
on
2
–
24
VAC
1
–
C
om
m
on
2
–
24
VAC
Analog Out -3
24 VAC – 2
Common – 1