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44
Table 6 — Protective Safety Limits and Control Settings
MONITORED PARAMETER
ALARM/
ALERT
LIMIT COMMENTS
Temperature Sensors Out of Range
260-271,
140,141
.06 > Voltage Ratio > .98 or – 40 F >
Temperature>245 F for 3 seconds
Preset Alarm, Voltage Ratio=Input Voltage/
Voltage Reference(5 Volts)
Pressure Transducers Out of Range 260-271 .06 > Voltage Ratio > .98 for 3 seconds
Preset Alarm, Voltage Ratio=Input Voltage/
Voltage Reference(5 Volts)
High Compressor Discharge Temperature 231
COMP DISCHARGE TEMP > 220 F
(104.4 C)
Preset Alarm, Configure COMP DISCHARGE
ALERT in SETUP1 screen
167
COMP DISCHARGE TEMP > COMP DISCHARGE
ALERT
Configure COMP DISCHARGE ALERT in SETUP1
screen
103
COMP DISCHARGE TEMP > COMP DISCHARGE
ALERT – 10 F (5.6 C)
Prestart Alert, Configure COMP DISCHARGE
ALERT in SETUP1 screen
High Motor Temperature 233
COMP MOTOR WINDING TEMP > 220 F
(104 C)
Preset Alarm, Configure COMP MOTOR TEMP
OVERRIDE in SETUP1 screen
102
COMP MOTOR WINDING TEMP > COMP MOTOR
TEMP OVERRIDE – 10 F (5.6 C)
Prestart Alert, Configure COMP MOTOR TEMP
OVERRIDE in SETUP1 screen
Compressor Thrust Bearing Temperature 101
COMP THRUST BRG TEMP > COMP THRUST
BRG ALERT – 10 F (5.6 C)
Preset Alert, Configure COMP THRUST BRG
ALERT in SETUP1 screen
234
COMP THRUST BRG TEMP > COMP THRUST
BRG TRIP
Preset Alarm
Low Evaporator Temperature
(Freeze Protection)
243
Chiller in RECYCLE SHUTDOWN and EVAP
TEMP< EVAP REFRIG TRIPPOINT + 1 F
Preset Alarm, configure EVAP REFRIG
TRIPPOINT in SETUP1 screen
232
EVAP REFRIG TEMP < 33 F (water) and
EVAP APPROACH > EVAP APPROACH ALERT
Preset Alarm, Configure EVAP APPROACH
ALERT in SETUP1 screen
0° F (–17.8 C) < EVAP REFRIG TEMP
< 40 F (4.4 C) (brine) and EVAP APPROACH
> EVAP APPROACH ALERT
Configure EVAP REFRIG TRIP POINT and
CHILLED MEDIUM in SETUP1 screen
104
EVAPORATOR REFRIG TEMP < 33 F
+ REFRIG OVERRIDE DELTA T (water)
Prestart Alert, Configure REFRIG OVERRIDE
DELTA T in SETUP1 screen
EVAPORATOR REFRIG TEMP < EVAP REFRIG
TRIPPOINT (brine)
Prestart Alert, Configure EVAP REFRIG TRIP-
POINT and CHILLED MEDIUM in SETUP1 screen
Transducer Voltage Fault 239 5.5 VDC < Voltage Reference < 4.5 VDC Preset Alarm
High Condenser Pressure — Control 235 CONDENSER PRESSURE > 165 PSI
Preset Alarm, Configure COND PRESS
OVERRIDE in SETUP1 screen
Switch 207
High Pressure Switch Open (165 ± 5 PSIG) &
VFD START = YES
Preset Alarm, Switch closes at 110 ± – PSIG
Prestart 106
CONDENSER PRESSURE > COND PRESS
OVERRIDE – 20 PSI
Prestart Alert, Configure COND PRESS
OVERRIDE in SETUP1 screen
CONDENSER PRESSURE > 145 PSI Prestart Alert
Low Condenser Pressure
(Freeze Protection)
244
Chiller in PUMPDOWN mode and CONDENSER
REFRIG TEMP < CONDENSER FREEZE POINT
Preset Alarm, Configure CONDENSER FREEZE
POINT in SETUP1 screen.
154
Energizes condenser pump relay if CONDENSER
REFRIG TEMP < CONDENSER FREEZE POINT.
Deenergizes condenser pump relay when
CONDENSER REFRIG TEMP > CONDENSER
FREEZE POINT + 5 F (2.8 C) and ENTERING
COND LIQUID > CONDENSER FREEZE POINT
Configure CONDENSER FREEZE POINT in
SETUP1 screen
Oil — Low Pressure 228
OIL PRESSURE DELTA P < 13 PSID and
VFD START = TRUE
Preset Alarm
Low Pressure
OIL PRESSURE DELTA P < 18 PSID and startup
complete after OIL PRESS VERIFY TIME elapsed
Preset Alarm, Configure OIL PRESS VERIFY
TIME in SETUP1 screen
Low Pressure 142
OIL PRESSURE DELTA P < 18 PSID and startup
complete
Preset Alert
Pressure Sensor Fault 227
OIL PRESSURE DELTA P > 4 PSI immediately
before oil pump turned on
Preset Alarm
Low Temperature 105
OIL SUMP TEMP < 150 F and OIL SUMP TEMP <
EVAP REFRIG TEMP + 50 F (27.8 C)
Prestart Alert
Line Voltage — High 211/145
Line voltage > approximately 528 V, limits are
calculated by VFD
Preset Alarm/Alert
High 108
PERCENT LINE VOLTAGE > Overvoltage
threshold
Preset Prestart Alert
Low 212/146
DC BUS VOLTAGE < approximately 408 V,
limits are calculated by a VFD
Preset Alarm/Alert
Low 107
PERCENT LINE VOLTAGE < Undervoltage
threshold
Preset Prestart Alert
Imbalance 216
LINE VOLTAGE IMBALANCE > LINE VOLTAGE
% IMBALANCE
Configure LINE VOLTAGE % IMBALANCE and
LINE VOLT IMBALANCE TIME in VFD CONF
screen
Line Current — Single Cycle Dropout 210/144 Line Voltage on 2 Phases < 50% for 1 Cycle Preset Alarm
Imbalance 209/143
LINE CURRENT IMBALANCE>LINE CURRENT
% IMBALANCE
Configure LINE CURRENT % IMBALANCE and
LINE CURRENT IMBALANCE TIME in
VFD_CONF screen
Power — Line Frequency Out of Range 222 47 Hz < LINE FREQUENCY < 63 Hz Preset Alarm
ICVC Power on Reset 214/148
Loss of control power to ICVC for excessive time
period
Preset Alarm
312
- EVERGREEN 1
- 50/60 Hz 1
- CONTENTS 2
- CONTENTS (cont) 3
- INTRODUCTION 4
- CHILLER FAMILIARIZATION 5
- (Fig. 1 and 2) 5
- REAR VIEW 7
- FRONT VIEW 7
- REFRIGERATION CYCLE 8
- MOTOR AND LUBRICATING OIL 8
- COOLING CYCLE 8
- STARTING EQUIPMENT 10
- OPTIONAL 11
- 442A AND 608A VFDs 12
- 900A AND 1200A VFDs 12
- CONTROLS 15
- Definitions 15
- Fig. 10 — Control Panel 17
- Fig. 11 — Power Panel 17
- 55.1 44.1 40.7 20
- 85.0 95.0 98.1 20
- 21.8 132.9 93 20
- Table 4 — ICVC Display Data 27
- 0.1-3.0 SP_HIGH 28
- 0.1-3.0 SP_HIGH 1.0 37
- PIC III System Functions 40
- ECW-10 sec 41
- Error, Gain = 1 41
- Error, Gain = 3 41
- START-UP/SHUTDOWN/ 57
- RECYCLE SEQUENCE (Fig. 27) 57
- Local Start-Up — 57
- Shaft Packing — 60
- LIQUID LINE 63
- Temperature (F) 64
- Temperature (C) 64
- • Surge/ HGBP Deadband = 1 69
- ΔT increase 70
- Delta Tsat 71
- ALARM CONTROL 72
- ALARM ROUTING 72
- LEGEND TO TABLES 16A-16J 91
- E. START-UP IN PROGRESS 92
- F. NORMAL RUN 93
- G. NORMAL RUN WITH OVERRIDES 93
- H. OUT-OF-RANGE SENSOR 94
- J. CHILLER ALERTS 99
- J. CHILLER ALERTS (cont) 100
- Control Modules 107
- Notes on Module Operation 107
- RECTIFIER LED 109
- INVERTER LED 109
- Table 30 — Motor Voltage Code 129
- COMPRESSOR, TRANSMISSION AREA 130
- LOW SPEED SHAFT THRUST DISK 131
- LEGEND FOR FIG. 53-58 133
- SEE NOTE 134
- HOT GAS BYPASS 135
- HOT GAS BYPASS OPTION FOR 136
- NOTE: MOTOR OVERLOAD IS 143
- FACTORY PRE-SET 143
- DO NOT ADJUST 143
- COMBINED I/O 144
- TB1 − LF2 146
- TB3 − LF2 146
- VFD (cont) 147
- LEGEND FOR FIG. 60 148
- NOTES FOR FIG. 60 149
- NOTE 3.6 150
- LEGEND FOR FIG. 61 152
- NOTES FOR FIG. 61 153
- 19XRV CHILLERS 154
- STATUS VPF_STAT 163
- APPENDIX B — LEAD/LAG WIRING 165
- 19XRV Weekly Maintenance Log 168
- 19XRV Maintenance Log 169
- 19XRV Seasonal Shutdown Log 170
- 10's 171
- 1's 171
- — The LEDs indicate if the 175
- Table G — Network Points List 176
- INITIAL START-UP CHECKLIST 179
- No 180
- *If yes, determine cause 180
- DRAWINGS) 180
- 0.1 to 3.0 184
- CCN LOCAL RESET MENU 190
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