Carrier AquaEdge 23XRV Start-Up, Operation And Maintenance Instructions Manual page 49

ALARM
MONITORED OR
PARAMETER ALERT
STATE
Temperature 260-273
140,141
Sensors Out of
Range
Pressure 262-273
Transducers Out
of Range
231
High Compressor
162
Discharge
Temperature
103
233
High Motor
Temperature
102
243
232
Low Evaporator
Temperature
(Freeze
Protection)
104
Transducer 239
Voltage Fault
High Condenser
Pressure
- Control 235
- Switch 207
- Prestart 106
244
154
Low Condenser
Pressure (Freeze
Protection)
Oil
- Low Pressure 234
- Low Pressure 228
- Low Pressure 142
- High Oil
164
Pressure
- Pressure 227
Sensor Fault
- Low 105
Temperature
Line Voltage
- High 211/145
- High 108
- Low 212/146
- Low 107
- Imbalance 216
Line Current
- Dropout 210/144
- Imbalance 209/143
Table 5 — Protective Safety Limits and Control Settings
LIMIT
-40 deg F>Temperature>245 deg F for 3 seconds
0.06>Voltage Ratio>0.98 for 3 seconds
COMP DISCHARGE TEMP > 180 deg F(82 deg C)
COMP DISCHARGE TEMP > COMP DISCHARGE
ALERT
COMP DISCHARGE TEMP > COMP DISCHARGE
ALERT – 10 deg F(5.6 deg C)
COMP MOTOR WINDING TEMP > 244 deg F(118 deg C)
or < –5 deg F(–21 deg C) — Open Circuit
COMP MOTOR WINDING TEMP > COMP MOTOR TEMP
OVERRIDE – 10 deg F(5.6 deg C)
Chiller in RECYCLE SHUTDOWN and CALC EVAP SAT
TEMP or EVAP REFRIG LIQUID TEMP < EVAP REFRIG
TRIPPOINT + 1 deg F
For water: EVAP REFRIG LIQUID TEMP or CALC EVAP
SAT TEMP TEMP < 33 deg F and EVAPORATOR
APPROACH < EVAP APPROACH ALERT
For brine: EVAP REFRIG LIQUID TEMP or CALC EVAP
SAT TEMP is between 0 deg F(-17.8C) and 40 deg F
(4.4 C) (brine) and EVAPORATOR APPROACH < EVAP
APPROACH ALERT
CALC EVAP SAT TEMP < 33 deg F + REFRIG OVER-
RIDE DELTA T (non-brine)
CALC EVAP SAT TEMP < EVAP REFRIG TRIPPOINT
(brine) + REFRIG OVERRIDE DELTA T
TRANSDUCER VOLTAGE REF<4.5 VDC
CONDENSER PRESSURE > 166 PSI
High Pressure Switch Open(165 ± 5 PSIG) & VFD START
= YES
CONDENSER PRESSURE > COND PRESS OVERRIDE
– 25 PSI
Chiller in PUMPDOWN mode and CONDENSER REFRIG
TEMP < CONDENSER FREEZE POINT
Energizes condenser pump relay if CONDENSER
REFRIG TEMP < CONDENSER FREEZE POINT. De-
energizes condenser pump relay when CONDENSER
REFRIG TEMP > CONDENSER FREEZE POINT + 5
deg F (2.8 deg C) and ENTERING COND LIQUID > CON-
DENSER FREEZE POINT
OIL PRESSURE DELTA P < 18 PSID after OIL PUMP =
ON, OIL PRESS VERIFY TIME exceeded, and STARTUP
in progress
OIL PRESSURE DELTA P < 15 PSID and VFD START =
TRUE
OIL PRESSURE DELTA P < 15 PSID and VFDSTART =
TRUE
Oil Pump ON and OIL PRESSURE DELTA P > 45 PSI
OIL PRESSURE DELTA P > 4 PSI immediately before oil
pump turned on
OIL SUMP TEMP < 140 deg F and OIL SUMP TEMP <
CALC EVAP SAT TEMP + 15 deg F (8.3 deg C)
Line voltage > limits are calculated by VFD (alert is
declared if AUTORESTART is ENABLED)
PERCENT LINE VOLTAGE > 115%
Line voltage < limits calculated by VFD (alert is declared if
AUTORESTART is ENABLED)
PERCENT LINE VOLTAGE < 85%
LINE VOLTAGE IMBALANCE > LINE VOLTAGE %
IMBALANCE
Line Voltage on 2 Phases < 50% for 1 Cycle
LINE CURRENT IMBALANCE>LINE CURRENT %
IMBALANCE
Preset Alarm. See Temperature vs. Resistance/Voltage
Drop in Tables 10 and 11
Preset Alarm Voltage Ratio=Input Voltage/Voltage
Reference(5 Volts)
Preset Alarm, Configure DISCH TEMP ALERT in SETUP1
screen
Configure COMP DISCH ALERT in SETUP1 screen
Prestart Alert, Configure COMP DISCHARGE ALERT in
SETUP1 screen
Preset Alarm
Prestart Alert, Configure COMP MOTOR TEMP
OVERRIDE in SETUP1 screen
Preset Alarm, Configure EVAP REFRIG TRIPPOINT in
SETUP1 screen
Preset Alarm, Configure EVAP APPROACH ALERT in
SETUP1 screen
Configure EVAP APPROACH ALERT and CHILLED
MEDIUM in SETUP1 screen
Prestart Alert, Configure REFRIG OVERRIDE DELTA T in
SETUP1 screen
Prestart Alert, Configure EVAP REFRIG TRIP POINT and
CHILLED MEDIUM in SETUP1 screen
Preset Alarm
Preset Alarm
Preset Alarm, Switch closes at 110 ± 7 PSIG
Prestart Alert, Configure COND PRESS OVERRIDE in
SETUP1 screen
Preset Alarm, Configure CONDENSER FREEZE POINT in
SETUP1 screen.
Configure CONDENSER FREEZE POINT in SETUP1
screen
Preset Alarm, Configure OIL PRESS VERIFY TIME in
SETUP1 screen
Preset Alarm, condition must persist for 55 consecutive
seconds
Preset Alert, condition must persist for 10 consecutive
seconds
Preset Alert, condition must persist for 55 consecutive
seconds
Preset Alarm
Preset Prestart Alert
Preset Alarm/Autorestart Alert
Preset Prestart Alert
Preset Alarm/Autorestart Alert
Preset Prestart Alert
Configure LINE VOLTAGE % IMBALANCE and LINE
VOLT IMBALANCE TIME in VFD_CONF screen
Preset Alarm/Autorestart Alert
Configure LINE CURRENT % IMBALANCE and LINE
CURRENT IMBALANCE TIME in VFD_CONF screen
49
COMMENTS