Appendix A: Troubleshooting
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3
Compressor will not Oper-
ate (Cont.)
8RO fail-safes are not wired
correctly.
Verify fail-safe wiring on 8RO board for N.O./N.C.
positions. One wire of the two-wire connection
should always be connected to the middle terminal.
The second wire must be either connected to the
N.C. terminal (if you want the relay to be closed
(ON) during power failure) or the N.O. terminal (if
you want the relay to be open (OFF) during power
failure.)
Compressor in override.
Highlight compressor stage and cancel the override
by pressing Enter to open the Actions Menu. Select
3 for Override options, or go to the Override/
Bypass Log to view and cancel overrides:
1. From the Main Menu, press 8 to open the Status
menu.
2. From the Status menu, press 4 for the Graphs/
Logs menu.
3. Press 3 for the Override/Bypass Log. (This
screen gives you quick access to all overrides/
bypasses in the system)
Rack is in Phase Fail.
Verify correct phase and verify correct input for
phase loss.
If you specified that phase protection would be
used on this rack, the Phase Loss input is displayed.
The Phase Loss input is automatically configured
to use E2’s Global Data phase loss protection
source. If you wish to define a different source, re-
define this input definition. To point this input to a
board and point address: press
(EDIT) and
then 1 to change the definition format.
Oil sensors are set up but are
not in use.
Remove oil sensors from individual compressors.
1. Highlight the Comp Setup tab (C6) in the Suc-
tion Group Setup screen.
2. Use the arrow keys to select the OIL SENSOR
field.
3. Choose “None” from the LOOK UP menu.
SYMPTOM
POSSIBLE PROBLEM
SOLUTION
