DNT-T103 & DNT-T221 Application Guide
Page 8 of 41
Document Edition 4.1
Air Balancer Menu Options
Menu
Item
Description
do not need to command. [When outputs are defined as tri-state in the
Configuration menu, modifications can only be made to the primary output –
the other output cannot be modified.]
•
•
To enter Air Balancing mode, which is only an option when VAV is selected
as the Application in the Configuration Menu.
To exit Service Tool mode (Yes or No). At any time within the Service Tool
menus, if you do not press a button within 30 minutes the device will
automatically revert to its normal display mode (but retains manually
commanded outputs and stays in any forced VAV box mode: MIN, MAX,
CLOSED, OPEN).
Displayed on line 1 of the LCD (top left) to indicate you are in the Air Balancer Mode.
[
Option
]
Air Balancer Mode has these following menu options, which you rotate through using the
arrow keys. Press the N
EXT
or P
REVIOUS
buttons to select the option and navigate the
submenus.
•
•
Displays the current Air Flow, use the arrow keys to navigate the submenus
and view the internal Air Flow Setpoint and the Air Flow Factor (with possible
adjustment).
•
Displays the current Minimum Air Flow setting, use the arrow keys to navigate
the submenus to adjust the value and force the box to the minimum value.
•
Displays the current Maximum Air Flow setting, use the arrow keys to
navigate the submenus to adjust the value, force the box to the maximum
value, and calibrate the display value to match a measured value.
•
Use the arrow keys to navigate the submenus and select options to force the
box fully closed, and then auto-calibrate for zero flow.
•
Use the arrow keys to navigate the submenus and select options to force the
box fully open.
•
Use the arrow keys to navigate the submenus and select options that put the
box back under control (releasing the box from forced modes: MIN, MAX,
CLOSED, OPEN, or ZERO Calibrate).
To exit Service Tool mode (Yes or No). At any time within the Service Tool
menus, if you do not press a button within 30 minutes the device will
automatically revert to its normal temperature display mode (but retains
manually commanded outputs and stays in any forced VAV box mode: MIN,
MAX, CLOSED, OPEN, or ZERO Calibrate).
INPUT CALIBRATION
The inputs are typically calibrated in their associated local AI objects. These same calibration
fields are also mapped to variables (AV16 to 18) to allow other vendors in a multi-vendor
installation to calibrate the inputs. The inputs may also be calibrated right at the BACstat
using the Service Tool Menu.
MS/TP CONNECTION
