Nortec MH Series - Manual (Page 34)

31 | Installation
Optional Outdoor Temperature Reset
Figure 33: 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 32: Digital
T d
Figure 34: Outdoor Temperature Sensor (On/Off Controls)