Manual 2100-670I
Page
30 of 47
Damper Failed to Open Alarm
When the controller commands the economizer damper
actuator to a position other than 0% and the damper
switch indicates the damper is not open, after a delay
of 20 seconds the controller will generate a damper
failed to open alarm. This alarm is just a notification
and will not disable any features on the controller.
Disabling the damper switch in
I/O Config
disables this
alarm.
To adjust the damper failed to open delay:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to
System Config
;
press ENTER key.
4. Press UP or DOWN keys to scroll to
Alarm Setup
(A4)
; press ENTER key.
5. Press ENTER key to scroll to
Open Delay
(see
Figure 48).
6. Press UP or DOWN keys to change to the desired
value.
7. Press ENTER key to save the value.
To verify the status of the switch:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter
TECHNICIAN password 1313.
3. Press UP or DOWN keys to scroll to
I/O Config
;
press ENTER key.
4. Press UP or DOWN keys to scroll to
Digital In
Config (C2)
; press ENTER key.
5. Reference the value located at
6
Damp
row and
Val
column (see Figure 47).
6. The input will display
ON
when the damper is
closed (reflecting closed circuit on damper switch)
and will display
OFF
when the damper is open
(reflecting open circuit on damper switch).
FIGURE 47
Damper Switch
Damper Failed to Close Alarm
When the controller commands the economizer damper
actuator to the 0% position and the damper switch
indicates the damper is not closed, after a delay of 300
seconds the controller will generate a damper failed to
close alarm. This alarm is just a notification and will
not disable any features on the controller.
Disabling the damper switch in
I/O Config
disables this
alarm.
To adjust the damper failed to close delay:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter
USER password 2000.
3. Press UP or DOWN keys to scroll to
System Config
;
press ENTER key.
4. Press UP or DOWN keys to scroll to
Alarm Setup
(A4)
; press ENTER key.
5. Press ENTER key to scroll to
Close Delay
(see
Figure 48).
6. Press UP or DOWN keys to change to the desired
value.
7. Press ENTER key to save the value.
Outdoor Temperature and Humidity Combination
Sensor
The unit is equipped with a combination outdoor
temperature and humidity sensor to monitor
outdoor conditions for the economizer operation.
The temperature is measured with a 10k ohm NTC
thermistor. The humidity is measured with a humidity
sensor that outputs a 4-20mA signal to the controller.
The outdoor temperature can be verified by:
1. Press MENU key to go to the Main Menu screen.
2. Press UP or DOWN keys and ENTER key to enter
TECHNICIAN password 1313.
3. Press UP or DOWN keys to scroll to
I/O Config
;
press ENTER key.
4. Press UP or DOWN keys to scroll to
Outdoor Air
Sensor (C4)
; press ENTER key.
FIGURE 48
Adjusting Damper Alarm Delay
