Configuring Analog Inputs To Measure Temperature With A Thermistor; Setting Up The Ntc Type; Specifying The Occupied Setpoint; Specifying The Unoccupied Setpoint - Johnson Controls FMS-2000C User Manual

FMS-2000C

Configuring analog inputs to measure temperature with a thermistor

The FMS-2000C controller includes two dedicated thermistor inputs for measuring and monitoring resistive temperature sensors, or
thermistors. Once you have configured the controller for temperature using the thermistors, you can adjust the temperature setpoint on
the home screen by tapping the temperature icon. You can also set a comfort range to limit how many degrees the temperature can be
adjusted above or below the setpoint. After you have completed the configuration of the analog input, configure the analog output for
temperature. See Configuring the analog output for temperature control for more information.

Setting up the NTC type

Specify which type of negative temperature coefficient (NTC) thermistor connects to the FMS-2000C controller.
1. On the home screen, tap the Settings icon to enter the Settings menu.
To view analog input settings, tap Analog I/O.
2.
3. Swipe left four times to get to the THERMISTOR 1 screen.
Optional: Swipe left five times to get to the THERMISTOR 2 screen.
4.
5. To specify the NTC type, expand NTC Type and choose from the following options:
• NTC Type 2
• NTC Type 3
6. To save the new settings, collapse NTC Type.

Specifying the occupied setpoint

1. On the home screen, tap the Settings icon to enter the Settings menu.
2. To view analog input settings, tap Analog I/O.
Swipe left four times to get to the THERMISTOR 1 screen.
3.
4. Optional: Swipe left five times to get to the THERMISTOR 2 screen.
To adjust the temperature you want to maintain when the space is occupied, tap the Occupied Setpoint arrow and enter a
5.
temperature value.
To confirm the new settings, tap the Checkmark icon.
6.

Specifying the unoccupied setpoint

1. On the home screen, tap the Settings icon to enter the Settings menu.
2. To view analog input settings, tap Analog I/O.
3. Swipe left four times to get to the THERMISTOR 1 screen.
4. Optional: Swipe left five times to get to the THERMISTOR 2 screen.
5. To adjust the temperature you want to maintain when the space is unoccupied, tap the Unoccupied Setpoint arrow and enter a
temperature value.
6. To confirm the new settings, tap the Checkmark icon.

Adjusting the temperature offset

Adjust for any difference between the displayed temperature and the measured temperature.
On the home screen, tap the Settings icon to enter the Settings menu.
1.
2. To view analog input settings, tap Analog I/O.
Swipe left four times to get to the THERMISTOR 1 screen.
3.
4. Optional: Swipe left five times to get to the THERMISTOR 2 screen.
To adjust the temperature offset, tap the Temperature Offset arrow and enter a temperature value.
5.
6. To confirm the new settings, tap the Checkmark icon.

Adjusting the comfort range

1. On the home screen, tap the Settings icon to enter the Settings menu.
2. To view analog input settings, tap Analog I/O.
3. Swipe left four times to get to the THERMISTOR 1 screen.
4. Optional: Swipe left five times to get to the THERMISTOR 2 screen.
5. To adjust the comfort range, tap the Comfort Range arrow.
6. On the Comfort Range screen, scroll up or down to select a temperature range.
7. To confirm the new settings, tap the Checkmark icon.
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