Nortec SE Series - Manual (Page 31)

Installation | 28
Optional Outdoor Temperature Reset
Figure 29: Outdoor Temperature Reset

Each digital controller is equipped with an integrated reset function that can reduce the
setpoint during cold weather operation. This will prevent condensation on windows and
building structures. The above graph illustrates how the setpoint reset feature operates.

On modulating humidistats this feature is enabled by removing the jumper from terminals 8
and 1 on the humidistat and wiring the outdoor temperature sensor to these terminals. On
On/Off humidistats this feature must be activated with the humidistat’s keypad.

When the outdoor temperature setback feature is in effect, the humidistat will normally
display the calculated setpoint limit based on the outdoor air temperature. A snowflake will
also be displayed to indicate cold weather operation. When any key on the controller is
pressed, the LCD screen will display the customer specified setpoint for a short duration.
Figure 30: Outdoor Temperature Sensor (Modulating Control)
1
-
2
4
V
A
C
2
-
T
e
m
p
e
ra
tu
re
2520263 - Outdoor Temperature
Sensor
Connect 24 VAC, terminal
1 of humidifier to terminal
2 of controllers.
Note:
1
2
The Temperature sensor is
intended for duct mounting.
Locate the temperature sensor
near the fresh air intake. This
will ensure accurate representation
of the outdoor air temperature.
2548731 - On/Off Wall Humidistat or,
2548732 - On/Off Duct Humidistat
1
-
G
ro
u
n
d
2
-
2
4
V
A
C
3
-
C
o
m
m
o
n
4
-
D
ig
it
a
l
O
u
t
5
-
F
a
n
R
e
la
y
6
-
F
a
n
R
e
la
y
7
-
N
T
C
S
e
n
s
o
r
8
-
N
T
C
S
e
n
s
o
r
OR
Insert Other
On/Off
controls
in series
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
S
E