Start-Up, Operation, and Maintenance Instructions
Start-Up, Operation, and Maintenance Instructions
Start-Up, Operation, and Maintenance Instructions
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I. CHILLER PROTECT LIMIT FAULTS (cont)<br />
STATE<br />
PRIMARY<br />
MESSAGE<br />
227 PROTECTIVE<br />
LIMIT<br />
228 PROTECTIVE<br />
LIMIT<br />
229 PROTECTIVE<br />
LIMIT<br />
230 PROTECTIVE<br />
LIMIT<br />
231 PROTECTIVE<br />
LIMIT<br />
232 PROTECTIVE<br />
LIMIT<br />
233 PROTECTIVE<br />
LIMIT<br />
234 PROTECTIVE<br />
LIMIT<br />
235 PROTECTIVE<br />
LIMIT<br />
236 PROTECTIVE<br />
LIMIT<br />
237 PROTECTIVE<br />
LIMIT<br />
238 PROTECTIVE<br />
LIMIT<br />
239 PROTECTIVE<br />
LIMIT<br />
240 PROTECTIVE<br />
LIMIT<br />
241 LOSS OF<br />
COMMUNICATION<br />
242 LOSS OF<br />
COMMUNICATION<br />
243 POTENTIAL<br />
FREEZE-UP<br />
244 POTENTIAL<br />
FREEZE-UP<br />
245 PROTECTIVE<br />
LIMIT<br />
Table 11 — CVC/ICVC Primary <strong>and</strong> Secondary Messages <strong>and</strong><br />
Custom Alarm/Alert Messages with Troubleshooting Guides (cont)<br />
SECONDARY<br />
MESSAGE<br />
OIL PRESS<br />
SENSOR FAULT<br />
LOW OIL<br />
PRESSURE<br />
LOW CHILLED<br />
WATER FLOW<br />
LOW CONDENSER<br />
WATER FLOW<br />
HIGH DISCHARGE<br />
TEMP<br />
LOW REFRIGERANT<br />
TEMP<br />
HIGH MOTOR<br />
TEMPERATURE<br />
HIGH BEARING<br />
TEMPERATURE<br />
HIGH CONDENSER<br />
PRESSURE<br />
CCN OVERRIDE<br />
STOP<br />
SPARE SAFETY<br />
DEVICE<br />
EXCESSIVE<br />
COMPR SURGE<br />
TRANSDUCER<br />
VOLTAGE FAULT<br />
LOW DISCHARGE<br />
SUPERHEAT<br />
WITH STARTER<br />
MODULE<br />
WITH CCM<br />
MODULE<br />
EVAP PRESS/TEMP<br />
TOO LOW<br />
COND PRESS/TEMP<br />
TOO LOW<br />
VFD SPEED<br />
OUT OF RANGE<br />
ALARM MESSAGE<br />
ADDITIONAL<br />
PRIMARY CAUSE<br />
CAUSE/REMEDY<br />
227->Oil Pump Delta P Check transducer wiring <strong>and</strong> accuracy.<br />
[VALUE] exceeded limit of Check power supply to pump.<br />
[LIMIT]*.<br />
Check pump operation.<br />
Check transducer calibration.<br />
228->Oil Pump Delta P Check transducer wiring <strong>and</strong> accuracy.<br />
[VALUE] exceeded limit of Check power supply to pump.<br />
[LIMIT].*<br />
Check pump operation.<br />
Check oil level.<br />
Check for partially closed service valves.<br />
Check oil filters.<br />
Check for foaming oil at start-up.<br />
Check transducer calibration.<br />
229->Low Chilled Water Perform pump control test.<br />
Flow; Check Delta P Config Check transducer accuracy <strong>and</strong> wiring.<br />
& Calibration<br />
Check water valves.<br />
Check transducer calibration.<br />
230->Low Condenser Water Perform pump control test.<br />
Flow; Check Delta P Config Check transducer accuracy <strong>and</strong> wiring.<br />
& Calibration<br />
Check water valves.<br />
Check transducer calibration.<br />
231->Comp Discharge Check sensor resistance or voltage drop.<br />
Temp [VALUE] exceeded Check for proper wiring.<br />
limit of [LIMIT].*<br />
Check for proper condenser flow <strong>and</strong> temperature.<br />
Check for proper inlet guide vane <strong>and</strong> diffuser<br />
actuator operation.<br />
Check for fouled tubes or noncondensables in the<br />
system.<br />
232->Evaporator Refrig Check for proper refrigerant charge.<br />
Temp [VALUE] exceeded Check float operation.<br />
limit of [LIMIT]*.<br />
Check for proper fluid flow <strong>and</strong> temperature.<br />
Check for proper inlet guide vane operation.<br />
233->Comp Motor Winding Check motor sensors wiring <strong>and</strong> accuracy.<br />
Temp [VALUE] exceeded Check motor cooling line for proper operation, or<br />
limit of [LIMIT]*.<br />
restrictions.<br />
Check for excessive starts within a short time span.<br />
234->Comp Thrust Bearing Check oil heater for proper operation.<br />
Temp [VALUE] exceeded Check for low oil level, partially closed oil supply<br />
limit of [LIMIT]*.<br />
valves, clogged oil filters, etc.<br />
Check the sensor wiring <strong>and</strong> accuracy.<br />
235->Condenser Pressure Check for high condenser water temperatures, low<br />
[VALUE] exceeded limit of water flow, fouled tubes.<br />
[LIMIT]*.<br />
Check for division plate/gasket bypass.<br />
Check for noncondensables.<br />
Check transducer wiring <strong>and</strong> accuracy.<br />
236->CCN Override Stop CCN has signaled the chiller to stop. Reset <strong>and</strong><br />
while in LOCAL run mode restart when ready. If the signal was sent by the<br />
CVC/ICVC, release the stop signal on the STATUS01<br />
table.<br />
237->Spare Safety Device Spare safety input has tripped or factory installed<br />
jumper is not present.<br />
238->Compressor Surge: Check condenser flow <strong>and</strong> temperatures.<br />
Check condenser water Check surge protection configuration.<br />
temp <strong>and</strong> flow<br />
239->Transducer Voltage<br />
Ref [VALUE] exceeded limit<br />
of [LIMIT]*.<br />
240->Check for Oil in<br />
Refrigerant or Overcharge<br />
of Refrigerant<br />
241->Loss of Communica- Check wiring to ISM.<br />
tion With <strong>Start</strong>er.<br />
242->Loss of Communica- Check wiring to CCM.<br />
tion With CCM.<br />
243->Evaporator Refrig Check for proper refrigerant charge.<br />
Temp [VALUE] exceeded Check float operation.<br />
limit of [LIMIT]*.<br />
Check for proper fluid flow <strong>and</strong> temperature.<br />
Check for proper inlet guide vane operation.<br />
244->Condenser Refrig<br />
Temp [VALUE] exceeded<br />
limit of [LIMIT]*.<br />
245->Actual VFD Speed<br />
[VALUE] exceeded limit of<br />
[LIMIT]*.<br />
82