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Programming, Outputs force, Sa controller operator interface 38 – Orion System SA Controller User Manual

Page 38

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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

. 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.