Trane VAV VV550 LonTalk, Installation & Operation Manual

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62 VAV-SVP01A-EN
VAV VV550 Controller Device Home Tabs: Instructions
In Rover, the Inputs tab can be changed by selecting the Configure button. Following are
descriptions of each line on the Inputs tab. For a factory-installed VAV VV550 Controller, all inputs
and outputs are configured at the factory. For a field-installed VAV VV551 Controller, use this tab
to configure the inputs.
Binary Input 1
Select the application used with Binary input 1.
Occupancy: Select this option to use binary input 1 to detect the occupancy mode from an
occupancy sensor.
Generic: Select this option to use binary input 1 as a generic input.
Not Used: Select this option if binary input 1 is not used.
Device Contacts Normally Open: Select this check box if the device contacts are normally open.
Analog Input 1
This area displays Space Temperature Sensor when the analog input is connected to a zone
sensor. Analog input 1 can be used only to read the space temperature from a zone sensor. The
controller can receive the space temperature from either analog input 1 or as a communicated
value. If both are present, the controller uses the communicated space temperature.
Analog Input 2
This area displays Space Setpoint when the analog input is connected to a zone sensor. This input
can be used only to read the local space temperature setpoint from the zone sensor.
Analog Input 3
This area displays Airflow Sensor when the analog input is connected to an airflow sensor. The
controller can operate without a valid airflow value (either hardwired or communicated).
Analog Input 4
Select the application used with analog input 4. The sensor must be a 10 k thermistor.
Primary Supply Air Sensor: Select this option if the sensor measures the primary air
temperature. In this case, the sensor must be located upstream from the unit.
The controller can receive the primary air temperature from the analog input or as a communicated
value. If both are present, the controller uses the communicated temperature. If neither is present,
the controller uses the default primary air temperature defined on the Unit tab (either hot or cold).
Discharge Air Sensor: Select this option if the sensor measures the discharge-air temperature.
In this case, the sensor must be located downstream. The controller can operate without a valid
discharge-air temperature analog input if configured for space temperature control or flow tracking
control. If the controller is using ventilation flow control with reheat, the unit shuts down if there
is no valid discharge-air temperature. A ventilation flow control unit without reheat operates
normally without a valid discharge-air temperature.