JOHNSON CONTROLS
130
FORM 160.69-O1
ISSUE DATE: 9/30/2012
SECTION 2 – OPTIVIEW CONTROL CENTER
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 SUMP – PRESSURE TRANSDUCER OUT
OF RANGE”
The chiller (both compressors) has shutdown because
the Sump 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.
“OIL PUMP #1 – SETPOINT NOT ACHIEVED”
The chiller (both compressors) has shutdown because
compressor #1 differential oil pressure, as sensed by
compressor #1 Pump transducer and the Sump trans-
ducer, failed to meet the following requirements:
1. The differential oil pressure was <35.0 PSID for
5 continuous seconds during the last 10 seconds
of compressor #1 prelube or during the first 15
seconds of compressor #1 run.
-OR-
2. After the first 30 seconds of compressor #1 run,
the differential oil pressure was < the Setpoint/
Target oil pressure with the oil pump drive speed
command at 60 Hz for 5 continuous seconds.
The chiller can be started after the COMPRESSOR
switch is placed in the Stop-reset (O) position.
“OIL PUMP #2 – SETPOINT NOT ACHIEVED”
The chiller (both compressors) has shutdown because
compressor #2 differential oil pressure, as sensed by
compressor #2 Pump transducer and the Sump trans-
ducer, failed to meet the following requirements:
1. The differential oil pressure was <35.0 PSID for
5 continuous seconds during the last 10 seconds
of compressor #2 prelube or during the first 15
seconds of compressor #2 run.
-OR-
2. After the first 30 seconds of compressor #2 run,
the differential oil pressure was < the Setpoint/
Target oil pressure with the oil pump drive speed
command at 60 Hz for 5 continuous seconds.
The chiller can be started after the COMPRESSOR
switch is placed in the Stop-reset (O) position.
“SURGE PROTECTION – EXCESS SURGE”
(Applies only to single compressor operation and if the
Surge Protection SHUTDOWN setpoint is enabled)
The running compressor has shutdown because the
Surge Window Count exceeded the Count Limit
setpoint. If the Surge Protection Extended Run feature
is Disabled, the chiller shutsdown as soon as the count
exceeds the limit. If the Extended Run feature is En-
abled, this shutdown occurs only if the Surge Window
Count exceeds the Count Limit setpoint at completion
of the 10 minute Extended Run period. The chiller can
be started after the COMPRESSOR switch is placed in
the Stop-reset (O) position.
“CONDENSER – HIGH PRESSURE”
The condenser pressure, as sensed by the Condenser
Transducer, has increased to >180.0 PSIG (R134a).
The chiller can be started after the pressure decreases
to < 120.0 PSIG (R134a), and the COMPRESSOR
switch is placed in the Stop-reset (O) position.
“CONDENSER – PRESSURE TRANSDUCER
OUT OF RANGE”
The Condenser Pressure Transducer is indicating a
pressure that is < 6.8 PSIG (R134a), or > 300.0 PSIG
(R134a). This is outside the normal operating range of
the transducer. This is generally indicates a defective
transducer. The chiller can be started after the trans-
ducer is indicating a pressure that is within range and
the COMPRESSOR switch is placed in the Stop-Reset
(O) position.
“CONTROL PANEL – POWER FAILURE”
A Control Power failure has occurred. If the power
failure duration was < the duration of the applicable
“Coastdown” period (2.5 minutes standard; 15 min-
utes steam turbine), the remainder of the “Coastdown”
is performed upon restoration of power. The chiller can
be started after the COMPRESSOR switch is placed in
the Stop-reset (O) position. This message can indicate
a Cycling (auto-restart after power failure) or Safety
(manual restart after power failure) shutdown, depend-
ing upon Control Center configuration. It indicates a