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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

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