Economizer Controller
22
ACC-SVN203C-EN
Checkout Tests
NOTICE
Compressor Damage!
Be sure to allow enough time for compressor start-up
and shutdown between checkout tests so that you do
not short-cycle the compressors.
Use the Checkout menu (
) to test the damper
operation and any configured outputs. Only items that are
configured are shown in the Checkout menu.
To perform checkout tests:
1. Scroll to the desired test in the Checkout menu using
the
and
buttons.
2. Press the
button to select the item.
3. “RUN?” is displayed.
4. Press
to start the test.
5. The unit pauses and then displays “IN PROGRESS”.
6. When the test is complete, “DONE” appears.
7. When all parameters have been tested, press
(Menu Up) to end the test (e.g. turn off the relay).
Notes:
•
The checkout tests can all be performed at the time of
installation or any time during the operation of the
system.
•
To disable economizer for functional testing (optional),
use 10 mm wrench to loosen shaft coupling on
actuator. After testing, securely tighten coupling onto
damper shaft using minimum 120 lb-in. (13.6 Nm) to
maximum 180 lb-in. (20.3 Nm) torque.
Troubleshooting
WARNING
Hazardous Voltage!
Failure to disconnect power before servicing could
result in death or serious injury. Disconnect all electric
power, including remote disconnects before servicing.
Follow proper lockout/tagout procedures to ensure the
power can not be inadvertently energized.
NOTICE
Compressor Damage!
Be sure to allow enough time for compressor start-up
and shutdown between checkout tests so that you do
not short-cycle the compressors.
The economizer controller provides alarm messages that
display on the 2-line LCD.
If one or more alarms are present and there has been no
keypad activity for at least 5 minutes, the Alarms menu
displays and cycles through the active alarms.
You can also navigate to the Alarms menu at any time.
Note:
Upon power up, the module waits 60 minutes
before checking for alarms. This allows time for all
the configured devices (e.g. sensors, actuator) to
become operational. The exception is the MA
sensor which will alarm immediately.
Table 10. FDD troubleshooting
FAULTS
TESTS
Air temp.
sensor
failure/
fault
Not
econo-
mizing
when it
should
Econo-
mizing
when it
should
not
Damper
not
modula-
ting
Excess
outdoor
air
Damper Stuck
Open
x
x
x
Damper Stuck at
Minimum
x
x
Bad or Unplugged
Actuator
x
x
x
Sensor Hard
Failure
x
x
x
x
Actuator
Mechanically
Disconnected
x
x
x
x
To Clear an Alarm
Once the alarm has been identified and the cause has been
removed (e.g. replaced faulty sensor), the alarm can be
cleared from the display.
1. Navigate to the desired alarm.
2. Press
.
3. “ERASE?” is displayed.
4. Press
.
5. “ALARM ERASED” is displayed.
6. Press
(Menu Up) to complete the action and return
to the previous menu.
Note:
If an alarm still exists after you clear it, it redisplays
within 5 seconds.
Fault Detection & Diagnostics
(FDD) Certification
The JADE controller is a certified FDD product (HJW10) by
California Title 24, Part 6.