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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
USER password 2000.
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 2.30).
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).
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
USER password 2000.
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.
5. Reference the
Value
to see the input of the sensor
(see Figure 2.31).
6. To apply an offset, press ENTER key to scroll to
Offset
.
7. Press UP or DOWN keys to change to the desired
value.
8. Press ENTER key to save the value.
The outdoor humidity 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
USER password 2000.
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 Hum
Sensor (C7)
; press ENTER key.
5. Reference the
Value
to see the input of the sensor
(see Figure 2.32).
6. To apply an offset, press ENTER key to scroll to
Offset
.
7. Press UP or DOWN keys to change to the desired
value.
8. Press ENTER key to save the value.
Supply Temperature Sensor
The unit is equipped with a supply air temperature
sensor to monitor the leaving air temperature of the
unit. The temperature is measured with a 10k ohm
NTC thermistor.
The supply air 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
USER password 2000.
FIGURE 2.31
Outdoor Air Sensor
FIGURE 2.32
Outdoor Air Sensor
FIGURE 2.30
Damper Switch