T775U SERIES 2000 CONTROLLER 1. SETUP
62-0255–05 16
Fig. 30. Setup - Sensors - Sensor A - 0-5V, 0-10V, OR 
4-20MA - MIN and MAX Value (showing °F).
1.2.2.2.3. MIN or MAX VALUE 
(Sensor A only; 0-5V, 0-
10V or 4-20mA)
The minimum and maximum values display only for 
Sensor A when its type is 
0-5V, 
0-10V or 4-20MA.
1. From the Sensor A selections, use the S and T 
buttons to highlight MIN VAL or MAX VAL.
2. Press the X button to display the units.
3. Use the S and T buttons to increase/decrease the 
desired value.
Sensor Ranges:
°F -60.0 to 270.0
°C -51.0 to 132.0
PSI -500 to 500
IN WC -30.0 to 30.0
% 0.0 to 100.0
PA -3000 to 3000
KPA -3000 to 3000
PPM 0 to 9990
NONE -9999 to 9999
4. Press the X button to accept the units and return to 
the Sensor A selections.
Fig. 31. Setup - Sensors - Sensor A - Calibrate.
1.2.2.3. CALIBRATE (Sensor A or B)
Ensure that the wire size calibration value is within the 
limits for the sensor. 
• For temperature sensors, see “Temperature Sensor 
Calibration” on page 10.
• For other sensors, see “Humidity, Pressure, and 
Universal Sensor Calibration” on page 10.
1. From the Sensor A selections, use the S and T 
buttons to highlight CALIBRATE.
2. Press the X button to display the calibration value.
3. Use the S and T buttons to increase/decrease the 
desired calibration value.
Default: 0.0
Sensor Range Temperature: +/-10°F (+/-6°C)
Other Sensor Range: +/-10% of the Min to Max 
values specified previously. See Table 3 on 
page 10 for examples.
4. Press the X button to accept the value and return to 
the Sensor A selections.
Fig. 32. Setup - Sensors - Sensor A - Label.
1.2.2.4. LABEL (Sensor A or B input)
For a sensor already labeled, the display positions to and 
highlights that label.
1. From the Sensor A selections, use the S and T 
buttons to highlight LABEL.
2. Press the X button to display the label list.
3. Use the S and T buttons to scroll through the list 
and highlight the desired label.
You may need to scroll up or down to view all possi-
ble labels.
4. Use the X button to accept the highlighted label 
and exit the list.
NOTE: The label names in list order are: Sensor, Boiler, 
Outdoor, Duct, Dischrg, Chiller, Room, Supply, 
Return, and Animals.
ENTER
MINIMUM
VALUE FOR
SENSOR A
SETUP
SENSORS
SENSOR A
MIN VAL
0.0
F
o 
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ENTER
MAXIMUM
VALUE FOR
SENSOR A
SETUP
SENSORS
SENSOR A
MAX VAL
0.0
F
o 
 SETUP
SENSORS
 SENSOR A
 MIN VAL
 OR
 MAX VAL
SETUP
SENSORS
 SENSOR A
 CALIBRATE
ENTER
VALUE TO
CALIBRATE
SENSOR A
SETUP
SENSORS
SENSOR A
CALIBRATE
0.0
F
o 
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SETUP
 SENSORS
  SENSOR  A
   LABEL
SETUP
SENSORS
SENSOR  A
LABEL
SELECT
LABEL FOR
SENSOR  A
SENSOR  A
BOILER A
OUTDOOR A
DUCT A
DISCHRG A
CHILLER A
ROOM A
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