Delta Controls
Document Edition 1.2
Page 7 of 16
b) If the thermostat is not connected to a Delta controller, set DNA to Off, and then set the Address
(
Add
), System (
Sys
) address, Area (
ArE
) address and OEM* address to a unique number within the
network.
4.
Exit the
Adr
submenu
* Note
: By default OEM address is not used. ([OEM] [Area][Sys][Address])
Setting the Service Menu Level
The Service Menu can be set to 3 different levels: 0 – Hide, 1 – Read Only & 2 – Read/Write (Default).
1.
Use the procedure outlined above in Accessing the Configuration Menu
2.
Press the
T
button to scroll to the
Con
menu, and then press the
I
button to enter.
3.
Press the
I
button to scroll to the
Ser
parameter or menu item.
4.
Use the
S
button to set the
Ser
to 2, and then press the
I
button to accept the change.
5.
Press the
O
button to scroll to End, and then press the
S
button to go to Yes.
6.
Press the
I
button to accept Yes, and return to the main menu.
7.
Use the
T
button to go to the End screen, and then press the
S
button to accept Yes and return the
controller to normal display mode.
Balancing – VAV Air Balancing Procedure
For a visual map of the menus in these procedures refer to the Balancing Menu diagram included in the next
section. Do the following procedure prior to Final Air Balancing. Note: you will need the Service Menu level
set to 2 (Default) in order to make any settings. Refer to Setting the Service Menu level procedures above.
1. Enter the Balancing submenu
Now that the controller is set to full access (2), enter the Balancing submenu.
1.
From display mode, press the Down (
T
), then press the Up (
S
), and hold both down for at least 5
seconds.
2.
Enter a valid PIN code, and then
Ser
displays. The default PIN is 0110.
3.
Use Down (
T
) to scroll to
Bal
and press the
I
button to enter.
2. Set the Airflow Factor (K-Factor)
1.
Enter the Air Flow (
AF
) submenu, set the Air Flow Factor to the K-Factor specified by the VAV box
manufacturer. The value is equal to the airflow in CFM at 1” differential pressure.
2.
Exit the
AF
submenu.
3. Set the Minimum Cool Airflow Setpoint
1.
Enter the Low Cooling Flow (
LcF
) submenu, adjust the minimum cool airflow setpoint to the desired
value.
2.
Command the VAV box to control to the Minimum cooling airflow setpoint to verify that the damper
is being controlled properly.
3.
Exit the
LcF
submenu.
4. Set the Maximum Cool Airflow Setpoint
1.
Enter the High Cooling Flow (
HcF
) submenu, and adjust the maximum cool airflow setpoint to the
desired value.
