Manual

Installing the controllers

Connecting inputs

Connecting

inputs

The BAC-8001 and BAC-8201 controllers have preconfigured analog inputs to

support the supplied programs. The inputs cannot be changed to binary or

accumulator inputs. Only one input has an externally available physical

terminal. All of the inputs are preconfigured for the application programs

supplied in the controllers and are listed in Table 2-1.

Discharge air temperature Connect a 10k

, Type 3 thermistor temperature probe

to the discharge air temperature input. The input includes the internal pull-up

resistor. An STE-1405 sensor is suitable for this application. Follow the

instructions supplied with the sensor for installation. See Setting temperature

setpoints on page 30 for setting up discharge air temperature limiting that requires

this input sensor.

Space Temperature Input The space temperature input is connected only

through the RJ-45 thermostat and sensor input jack. It is a configured as an

analog input for STE-6010, STE-6014, and STE-6017 sensors. If an STE-8000

sensor is connected to the controller, this input is ignored. See Connecting to

sensors on page 15.

Space Setpoint The space setpoint input is connected only through the RJ-45

thermostat and sensor input jack. It is a configured for the setpoint dials on

STE-6014 or STE-6017 sensors. If an STE-6010 or STE-8000 sensor is connected to

the controller, this input is ignored. See Connecting to sensors

on page 15.

Primary Duct Pressure The primary duct pressure input is an internal

measurement from the airflow sensor.

Primary Damper Position (BAC-8201 only) The primary damper position input

is preconfigured as an analog input that represents the position of the internal

damper.

Table 2-1 BAC-8001 and BAC-8201 input objects

Object Function Name Unit Location Pull up

AI1Discharge Air Temperature DISCHARGE AIR °F Terminal block10k

AI2Space Sensor SPACE SENSOR °F RJ-45 10k

AI3Space Setpoint SPACE SETPOINT °F RJ-45 10k

AI4Primary Duct Pressure PRIMARY DUCT wc Internal airflow sensorN/A

AI5Primary Damper PositionPRIMARY POSITION Volts Internal damper position N/A

Illustration 2-3 Discharge air temperature