FBVi-2U4-4T |
Installation
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Subject to change without notice
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WIRING THE IO
Wiring the Universal Inputs
The
FBVI-2U4-4T
comes with 5 universal inputs.
U/I-8
is dedicated to the internal airflow sensor.
U/I-1
through
U/I-4
is used for wiring in-room sensors, setpoint adjust, discharge air sensors, CO
₂
sensors,
relative humidity sensors, window, and motion sensors, depending on the application. The sequences
for this wide range of applications are available within the preloaded strategy.
•
U/I
–
1
will typically be where the room temperature sensor is wired. This input is pre-configured to
support a 10K Type III thermistor.
Note:
Room sensors that short the thermistor for push-button occupancy are supported with this controller.
•
U/I
–
2
will typically be where the room setpoint adjusts is wired. This input is pre-configured to
support a 5K
POT
. It can also be set up for an occupancy sensor or window sensor.
•
U/I
–
3
is a dedicated input that has been configured to read a thermistor. In the pre-loaded
strategy, this input is used for a discharge air temperature sensor.
•
U/I
–
4
is configured as a voltage input. This input can be used for wiring in a CO
₂
sensor or relative
humidity sensor. It can also be set up for an occupancy sensor, window sensor, or a VAV fan
status.
Note:
For CO
₂
or relative humidity sensors it must be a 0
…
10 Vdc sensor type. To change the span for the CO
₂
sensor that is installed, adjust the following:
o
minCO2Range (A278)
Low range of the sensor.
o
maxCO2Range (A280)
High range of senor.
To adjust the span for the relative humidity sensor that is installed, adjust the following:
o
minHumidityRange (A251)
Low range of the sensor.
o
maxHumidityRange (A305)
High range of senor.
IO POINTS
DESCRIPTION
UI-01
Zone Temperature (with optional override button) occupancy, or window contact
(all optional)
UI-02
Setpoint Adjustment (optional 5K slider) occupancy, or window contact (all
optional)
UI-03
Discharge Temperature
UI-04
CO
₂
, Humidity, occupancy, fan status, or window contact (all optional)
UI-08
Flowrate Sensor