Orion System SA Controller - Manual (Page 38)

Zone
Zone
Programming
SA Controller Operator Interface 38
Outputs Force
Dampers Force Mode Screen
If the unit ID you entered is for a SA Controller that has VAV/Zone
Controllers connected to its communication loop, the Damper Force
Mode will act as a “Global” Damper Force Mode. That is, all VAV/Zone
Controllers on that SA Controller’s communication loop will be forced
to the same Damper Force Mode setting. If the unit ID you entered is
for a VAV/Zone Controller, the Damper Force Mode setting will only
apply to that VAV/Zone Controller.
Damper Force ID 102
Enter Force Mode: 0
0=Auto 1=Open 2=Clsd
3=Max 4=Min 5=Fixed
Set the appropriate Damper Force Mode by entering numbers 0 through
5. Following is a list of the force modes and their meaning:
0 = Auto This is the default setpoint. With this setting,
the damper will operate normally and modulate
according to the controller setpoints.
1 = Open This setting will force the dampers to their fully-
open position.
2 = Clsd This setting will force the damper to its fully-
closed position.
3 = Max This setting will force the damper to its
Maximum Position Setpoint. See VAV/Zone
Controller Setpoint Screen #5 on page 48 for
complete setpoint information.
4 = Min This setting will force the damper to its Minimum
Position Setpoint. See VAV/Zone Controller
Setpoint Screen #5 on page 48 for complete
setpoint information.
5 = Fixed This setting will force the damper to a fi xed
position based on the Fixed Position Setpoint.
See VAV/Zone Controller Setpoint Screen #8
on page 49 for complete setpoint information.
Caution: The Damper Force Modes should only be used by quali-
fi ed service personnel. Serious damage to the ductwork
could result if the dampers are all forced closed and the
HVAC unit fan is operating.
Outputs Force
Outputs Force settings are available for testing or troubleshooting the
system. These Force settings can only be accessed and programmed
from the Modular Service Tool. The System Manager does not allow
for programming of this function.
Caution: The Outputs Force settings should only be applied by
qualified service personnel. Serious damage to the
HVAC unit could result from improper use of these
Outputs Force settings.
To access the Outputs Force settings, simply press the < Balance-
Test> button on the Modular Service Tool. You will then see the Unit
ID Screen. Enter the unit ID of the SA Controller you wish to access and
press
<Enter> . The Outputs Force settings are only available for the
SA Controller. They are not supported for the VAV/Zone Controllers or
other add-on controllers. If you enter a unit ID for any other type of unit
besides an SA Controller, the following screen will be displayed:
Unit XXX Does Not
Support The Function
Press Any Key To
Continue
If you entered the unit ID of an SA Controller, the following screen
will be displayed:
1) Outputs Force
2) Dampers Force
Press <1> to access the Outputs Force Screen.
Supply Fan Override
Enter Override...: 0
[0=Auto 1=ON 2=OFF]
The fi rst Outputs Force Screen allows the AHU fan relay to be set for
Auto, ON, or OFF by entering a 0, 1, or 2 as desired. The default setting
is 0=Auto. After you complete all troubleshooting or testing procedures,
all relays should be changed back to this setting. The 1=ON setting will
force the relay to the ON (energized) position. The 2=OFF selection will
force the relay to the OFF (de-energized) position.