NOTES: Relay output overrides initiated with
the visograph will automatically time out after
one hour.
The E2 interface may be used to activate fixed or
timed overrides. The fixed overrides from E2 will not
time out after one hour.
The DAC will cancel any active E2 initiated over-
rides if it loses communication with the E2.
To navigate to the Analog Output override screen on
the next page, press the RIGHT arrow (T8).
Discharge Air Controller (DAC) Manual
Using the Visograph • 41
4. Use the UP and DOWN arrows (
T4
and
T5
),
to change the override state to the desired val-
ue. The choices are
Auto
,
ON
, and
OFF
.
5. Press
ENTER
to activate the new override
state.
6. Press
MENU
to go back to main menu
screen.
10.3.1.Analog Output Overrides with
Visograph
From the main menu, press
6
to navigate to the
output override screens. Then press the
RIGHT
arrow (next page) to move to the analog output
override screen:
10.3.1.1. To Override an Analog Output
1. Use the UP and DOWN arrows to navigate to
the desired analog output.
2. Press the
ENTER
key. The field will start
blinking.
3. Use the UP and DOWN arrows (
T4
and
T5
),
to change the override to the desired voltage.
The choices are
Auto
,
ON
, and
OFF
.
4. Press
ENTER
to activate the new override
state.
5. Press
MENU
to go back to main menu
screen.
10.3.1.2. To Clear an Analog Output
Override
Change the override value back to
10.1
V
The value 10.1 signifies that the output is not
overridden but is under normal control of the
application.
NOTES: Analog output overrides initiated with
the visograph will automatically time out after
one hour.
The E2 interface may be used to activate fixed or
timed overrides. The fixed overrides from E2 will not
time out after one hour.
Figure 10-8
- Overrides - Relay Outputs
Figure 10-9
- Overrides - Analog Outputs
The DAC will cancel any active E2 initiated
overrides if it loses communication with the E2.
