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Technician Control Menu
Forced Defrost, EEV, LSOV, Evacuation, Run Drive and
Run Outdoor Fan tests are initiated and performed
from the Technician Control Menu.
CONFIG
MENU
RUN OD FAN?
PRESS ENTER
continued on next page
4TWL9048A-SF-1C-EN
CONTROL MENU
RUN DRV TEST
TESTING
PRESS ENTER
PASSED
NO FAULT
SHORTED
WIRE/WINDING
OPEN
WIRE/WINDING
FAILED
LOCKED ROTOR
FAILED
DRIVE HW
EXT DRV TST
PRESS ENTER
MOTOR RPM
1050
VSPD Side Discharge
Run OD Fan Test Procedure
The OD fan test commands the OD fan to run at
maximum speed.
1. Verify fan blades are free from obstruction and
motor turns freely.
2. Confirm OD Fan control harness is connected to
the "CN FAN" terminal on the Drive.
N N o o t t e e : : If system is in Lockout, Unit Tests are not
available.
Drive Test Notes
MONITOR
1. Drive Diagnostics forces a shutdown and waits until
MENU
compressor is completely coasted before running
the drive diagnostic routine.
2. The OD system will enter a hard lockout state to
ensure no other system component is attempting to
run.
3. Show "TESTING" while internal diagnostics are
being performed (about 30 seconds).
4. One of five conclusions will be displayed at the end
of the Drive Test as a result of running the test.
5. At the conclusion of this test, the results screen will
remain displayed until power is cycled or the Exit
Drive Test option is used.
6. If Drive Test result is "Passed No Fault" the
compressor will run for one minute.
7. The user will then have the ability to scroll up or
down to visit an Exit Drive Test screen. Exiting the
Drive Test will reset the IVSC software and clear the
hard lockout state.
8. If the Drive Diagnostic test is not exited, a 2 hour
timer will be kept, and upon expiration of that timer
the IVSC will automatically reset itsel f.
STOP OD FAN
PRESS ENTER
VSPD Side Discharge
Run OD Fan Test Notes
1. System can be in any mode but must be idle to
enter FAN test.
2. If thermostat is sesnding demand to the OD unit,
test is not available.
3. Press ENTER from the RUN OD FAN screen.
4. Send 100% CFM (1050 RPM) to OD Fan Motor.
5. When test begins, change screen to display
MOTOR RPM on line 1 and 1050 on line 2.
6. To end test, navigate to right and press ENTER
from STOP OD FAN screen.
7. User is able to navigate back to the menu.
8. Test terminates after 1 hour if STOP OD FAN step
is not used.
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