DNT-T221-FCU Application Guide
Page 26 of 30
•
Day Setpoint: AV6
•
Day Minimum: AV7
•
Day Maximum: AV8
•
Day Differential: AV9
•
Night Heat Setpoint: AV10 (which can only be changed remotely, not via the keypad)
•
Night Cool Setpoint: AV11 (which can only be changed remotely, not via the keypad)
Additional Settings
These are additional settings you may also want to set from the OWS, and may be commanded as
necessary, but rarely are once they have been set (or the control loop has been tuned).
•
Proportional Band: AV19
•
Reset Rate: AV20
•
Display Code: AV15 (refer to page 5)
•
PIN Access Code: AV31 (which can only be changed remotely, not via the keypad)
•
Service Tool Mode: AV32 (to enable or disable access)
•
Fan Lockout in Heating: AV33
AI2 (and AI3) Configuration
AI1 is typically configured from the Configuration Menu, by setting the Temperature Units setting
(degrees C or F), additional inputs such as AI2 and AI3 on the DNT-T221-FCU may be configured
through the OWS. Choices are available for the configuration of AI2 and AI3 during setup via the
Configuration Menu depending on mode selected. Once you have ensured that the input is correctly
wired and the hardware jumper is appropriately set, use ORCAview to verify that the AI object is not
in manual mode and the units are properly set for the sensor.
Copying the Configuration from One Device to Another
It is possible to copy the configuration setup of one DNT-T221-FCU to another. It is a simple 1-2-3
procedure:
1. Configure one DNT-T221-FCU for the desired application with the settings you want.
2. Save the DNT-T221-FCU settings to a file on ORCAview (as described below, under
Save
As
).
3. Load this file into the other DNT-T221-FCUs on the network, one at a time.
This should replicate the same configuration (i.e., object values) from one DNT-T221-FCU to another,
and provide you a backup copy of the configuration settings in a file.
Navigator Right-Mouse Clicks
By clicking the right-mouse button on the BACstat icon in the left pane of Navigator you gain access
to a number of device commands.
Clear Database
The clear database feature (YES or NO) resets the configuration settings to the default. The following
are not cleared: Baud Rate, Device Address, DNA/LINKnet, MaxMaster and Max Info Frame.
Update Active Alarm List:
Not supported at this time.
Communication Control
This allows an OWS user to enable or disable a remote device from initiating and responding to all
BACnet services, except for Device Communication Control services and Reinitialize Device services.
It is primarily used for diagnostic purposes. Passwords are not supported (and need not be entered)
for BACstats, and the time duration is infinite.
