JOHNSON CONTROLS
129
SECTION 2 – OPTIVIEW CONTROL CENTER
FORM 160.69-O1
ISSUE DATE: 9/30/2012
2
“System Prelube” and lasts for 3 seconds. This fault
only applies when compressor #2 is the lead compres-
sor. This is indicative of a defective Sump or Pump
transducer, since the transducers are sensing the same
pressures during this period. The chiller can be started
after the COMPRESSOR switch is placed in the Stop-
reset (O) position.
With software version C.OPT.11.03.01.004 (or later),
if compressor #2 is locked-out using the Lockout key
on the Capacity Compressor Cycling Screen, this fault
does not cause compressor #1 to shutdown or prevent
it from starting. When this fault occurs on a locked-out
compressor, it is displayed as a warning. This allows
the user to know that a fault exists on the locked-out
compressor. The condition must be corrected prior to
the lockout being removed from the compressor. If it
is not, the warning condition will revert back to a shut-
down as soon as the lockout is removed and will cause
the chiller to trip.
“OIL PUMP #1 – HIGH DIFFERENTIAL PRES-
SURE”
The chiller (both compressors) has shutdown because
the oil pressure differential, as sensed by compressor
#1 Pump transducer and the Sump transducer, has in-
creased to >90.0 PSID. This fault is only checked if
both the compressor #1 Pump transducer and the Sump
transducer are in range. The chiller can be started after
the differential is <90.0 PSID and the COMPRESSOR
switch is placed in the Stop-reset (O) position.
“OIL PUMP #2 – HIGH DIFFERENTIAL PRES-
SURE”
The chiller (both compressors) has shutdown because
the oil pressure differential, as sensed by compressor
#2 Pump transducer and the Sump transducer, has in-
creased to >90.0 PSID. This fault is only checked if
both the compressor #2 Pump transducer and the Sump
transducer are in range. The chiller can be started after
the differential is <90.0 PSID and the COMPRESSOR
switch is placed in the Stop-reset (O) position.
“OIL PUMP #1 – LOW DIFFERENTIAL PRES-
SURE”
The chiller (both compressors) has been shutdown be-
cause the differential oil pressure, as sensed by com-
pressor #1 Pump transducer and the Sump transducer,
decreased to <15.0 PSID while compressor #1 was
running or went below 25.0 PSID during the last 5
seconds of compressor #1 Prelube. This fault is only
checked if both the compressor #1 Pump transducer
and the Sump transducer are in range. The chiller can
be started after the COMPRESSOR switch is placed in
the Stop-reset (O) position.
“OIL PUMP #2 – LOW DIFFERENTIAL PRES-
SURE”
The chiller (both compressors) has been shutdown be-
cause the differential oil pressure, as sensed by com-
pressor #2 Pump transducer and the Sump transducer,
decreased to <15.0 PSID while compressor #1 was
running or went below 25.0 PSID during the last 5
seconds of compressor #1 Prelube. This fault is only
checked if both the compressor #2 Pump transducer
and the Sump transducer are in range. The chiller can
be started after the COMPRESSOR switch is placed in
the Stop-reset (O) position.
“OIL PUMP #1 – PRESSURE TRANSDUCER
OUT OF RANGE”
The Chiller (both compressors) has shutdown because
compressor #1 Pump oil pressure transducer is out of
range (< 0.0 PSIG or >300.0 PSIG). The chiller can
be started after the pressure is within range and the
COMPRESSOR switch is placed in the Stop-reset (O)
position.
With software version C.OPT.11.03.01.004 (or later),
if compressor #1 is locked-out using the Lockout key
on the Capacity Compressor Cycling Screen, this fault
does not cause compressor #2 to shutdown or prevent
it from starting. When this fault occurs on a locked-out
compressor, it is displayed as a warning. This allows
the user to know that a fault exists on the locked-out
compressor. The condition must be corrected prior to
the lockout being removed from the compressor. If it
is not, the warning condition will revert back to a shut-
down as soon as the lockout is removed and will cause
the chiller to trip.
“OIL PUMP #2 – PRESSURE TRANSDUCER
OUT OF RANGE”
The Chiller (both compressors) has shutdown because
compressor #2 Pump oil pressure transducer is out of
range (< 0.0 PSIG or >300.0 PSIG). The chiller can
be started after the pressure is within range and the
COMPRESSOR switch is placed in the Stop-reset (O)
position.
With software version C.OPT.11.03.01.004 (or later),
if compressor #2 is locked-out using the Lockout key
on the Capacity Compressor Cycling Screen, this fault
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