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York MILLENNIUM YG Series Operating & Maintenance
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York MILLENNIUM YG Series Operating & Maintenance

York MILLENNIUM YG Series Operating & Maintenance

Centrifugal liquid chillers
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27704A
28699A

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Summary of Contents for York MILLENNIUM YG Series

  • Page 1 27704A 28699A...
  • Page 5 SYSTEM RUN – LEAVING TEMP CONTROL ..............................SYSTEM RUN – ENGINE LOAD LIMIT IN EFFECT ............................. SYSTEM RUN – AUTO SPEED/AUTO VANES ..............................SYSTEM RUN – VANES OPENING ..................................SYSTEM RUN – VANES CLOSING ..................................SYSTEM RUN – AUTO SPEED/AUTO VANES ..............................

  • Page 6: Remote Stop

    MON XX:XX AM – FLOW SWITCH ..................................MON XX:XX AM – SYSTEM CYCLING – AUTOSTART ............................. MON XX:XX AM – MULTI UNIT CYCLING – AUTOSTART ..........................MON XX:XX AM – POWER FAILURE ..................................MON XX:XX AM – INTERNAL CLOCK – AUTOSTART ............................
  • Page 7 WARNING – PRV POT OR SWITCH ERROR ............................... WARNING CONDENSER TRANSDUCER OR PROBE ERROR ........................... REPLACE RTC.U16 – REPROGRAM SETPOINTS .............................. ENGINE START SIGNAL ......................................ENGINE WARMUP ........................................START SEQ. INITIATED – COMPRESSOR PRELUBE ............................SYSTEM RUN; STOP SEQUENCE INITIATED ..............................
  • Page 8 PLC FAILURE .......................................... ENGINE OVERSPEED ......................................ENGINE OVERLOAD ....................................... ENGINE CRANKING FAULT ....................................LOW GEAR OIL TEMPERATURE SWITCH ................................SUN 12:00 AM LOW GEAR OIL TEMP SENS FAULT ............................HIGH AFTER COOLER WATER TEMPERATURE ..............................ENGINE FAULT ........................................CLUTCH FAILURE ........................................
  • Page 10 27704A 28699A...
  • Page 11 LD02532...
  • Page 13 COMP COASTDOWN – ENGINE SHUTDOWN...

  • Page 15: Emergency Stop

    LD00155 EMERGENCY STOP...
  • Page 16 LD00155 EMERGENCY STOP LD00156 LD02533...
  • Page 17 27592A LD00157...
  • Page 19 OUT OF RANGE VALUES FOR YG & YB CHILLER VARIABLES (R134A) VARIABLE DISPLAY -> X’S WHEN, EVAP PRESSURE (WATER & BRINE) <= 6.8 PSIG >= 77.4 PSIG COND PRESSURE <= 6.8 PSIG >= 315.0 PSIG HOP TRANSDUCER PRESSURE >= 315.0 PSIG LOP TRANSDUCER PRESSURE >= 315.0 PSIG DISCHARGE TEMPERATURE...
  • Page 20 CHILLED LEAVING = XXX.X °F, RETURN = XXX.X °F ENGINE SPEED = XXXX RPM, VANES = XXX % EVAP = XXXX.X PSIG. COND = XXXX.X PSIG COND LEAVING = XXX.X°F. RETURN = XXX.X°F OIL PRESSURE = XXXX.X PSID PRINT REQUEST IN PROGRESS... ENGINE OIL PRESSURE = XXX.X PSIG ENGINE MANIFOLD PRESSURE = XX.X PSIG ENGINE JACKET WATER TEMPERATURE = XXX.X°F...
  • Page 21 Manifold Pressure vs. Engine Speed G3512 Engine at Various Loads 40.00 125% Load 35.00 100% Load 30.00 25.00 75% Load 20.00 50% Load 15.00 10.00 25% Load 5.00 0% Load 0.00 1000 1100 1200 1300 1400 1500 Speed (RPM) LD02526 Manifold Pressure vs.
  • Page 22 G3412 Loading Chart 40.00 125% Load 35.00 30.00 100% Load 25.00 75% Load 20.00 50% Load 15.00 10.00 25% Load 5.00 0.00 0% Load 1400 1600 1700 1800 1500 Speed (RPM) LD02528 Manifold Pressure vs. Engine Speed G3508 Engine at Various Loads 45.00 40.00 125% Load...
  • Page 23 G3408 Lean Burn Loading Chart 30.00 125% Load 25.00 100% Load 75% Load 20.00 50% Load 15.00 25% Load 10.00 5.00 0.00 0% Load 1400 1600 1700 1800 1500 Speed (RPM) LD02529 SAT. TEMP EVAP = XXX.X °F, COND = XXX.X °F DISCHARGE TEMP = XXX.X °F, OIL = XXX.X °F HOP = XXXX.X PSIG;...
  • Page 24 LEAVING SETPOINT = XX.X°F ENGINE LOAD LIMIT = XXX%...
  • Page 25 SETPOINT = XXX MIN @ XXX% LOAD, XXX MIN LEFT SUN START = 08:30 AM STOP = 06:00 PM MON START = 05:00 AM STOP = 07:00 PM TODAY IS DAY XX:XX AM/PM 1/1/95 TUE START = 05:00 AM STOP = 07:00 PM WED START = 05:00 AM STOP = 07:00 PM THUR START = 05:00 AM STOP = 07:00 PM FRI START = 05:00 AM STOP = 07:00 PM...
  • Page 27 ENTER VALID ACCESS CODE LD00158 – KEYPAD – PROGRAMMING SYSTEM SETPOINTS INVALID ACCESS CODE OUT OF RANGE - TRY AGAIN! ACCESS TO PROGRAM KEY AUTHORIZED PROGRAM MODE. SELECT SETPOINTS ACCESS TO PROGRAM MODE DISABLED PROGRAM MODE, SELECT SETPOINT...
  • Page 28 LEAVING SETPOINT = XX.X °F (BASE) LD00159 PROGRAM MODE, SELECT SETPOINT ENGINE LOAD LIMIT = XXX % PROGRAM MODE. SELECT SETPOINT LD00160...
  • Page 29 SETPOINT = XXX MIN @ XXX % LOAD, XXX MIN LEFT PROGRAM MODE. SELECT SETPOINT LD00161 TODAY IS MON 10:30 PM 1/1/95 LD00162 PROGRAM MODE. SELECT SETPOINT...
  • Page 30 LD00457 SUN START = XX.XX AM. STOP = XX.XX AM LD00164 – KEYPAD - PROGRAMMING “DAILY SCHEDULE” SETPOINT MON START = XX.XX AM. STOP = XX.XX AM REPEAT MON SCHEDULE MON-FRI? YES = 1. NO = 0 PROGRAM MODE, SELECT SETPOINT...
  • Page 31 S__ M__T__ W__ T__ F__ S__ HOLIDAY NOTED BY * PROGRAM MODE. SELECT SETPOINT LD00165 PROGRAM MODE. SELECT SETPOINT REMOTE TEMP SETPOINT RANGE = XX °F PROGRAM MODE. SELECT SETPOINT LD0166...
  • Page 32 LD00167...
  • Page 33 PULLDN LEVEL=XXX%; SETP=XXX%; ACTUAL=XXX% ACTUAL LEVEL=XXX%; LEVEL SETP=XXX% PULLDN LEVEL=XXX%; SETP=XXX%; ACTUAL=XXX% ACTUAL LEVEL=XXX%; LEVEL SETP=XXX%...
  • Page 34 WARNING–REFRIGERANT LEVEL OUT OF RANGE MANUAL LEVEL CONTROL ALLOWED MANUAL VANE OPERATION ALLOWED SYSTEM RUN—AUTO LEVEL CONTROL SYSTEM RUN—LEVEL VALVE OPENING PROGRAM MODE, SELECT SETPOINT SYSTEM RUN—LEVEL VALVE CLOSING MAN. CONTROL __ (0=VANE, 1=ENGINE, 2=LEVEL) PROGRAM MODE, SELECT SETPOINT...
  • Page 35 SYSTEM RUN, PRESS STATUS SYSTEM RUN – VANES CLOSING SERVICE KEYS CONTROL = VANE POSITION SYSTEM RUN – VANES CLOSING VANES: HOLD; ENGINE: INCR; LEVEL: AUTO SYS READY TO START – VANES CLOSING SYS READY TO START – VANES CLOSED SYSTEM RUN –...
  • Page 36 SERVICE KEYS CONTROL: VANE POSITION PRINT REQUEST IN PROGRESS . . .
  • Page 37 INVALID ACCESS CODE ACCESS TO PROGRAM KEY AUTHORIZED PROGRAM MODE, SELECT SETPOINT LOCAL MODE SELECTED SERVICE MODE SELECTED LOCAL MODE REMOTE MODE SELECTED REMOTE MODE SERVICE MODE PROGRAM MODE, SELECT SETPOINT ENTER VALID ACCESS CODE ACCESS TO PROGRAM MODE DISABLED...
  • Page 38 SYSTEM RUN - ENGINE LOAD LIMIT IN EFFECT SYSTEM RUN – LEAVING TEMP CONTROL SYSTEM RUN – AUTO SPEED/AUTO VANES SYSTEM RUN – VANES OPENING SYSTEM RUN – ENGINE LOAD LIMIT IN EFFECT SYSTEM RUN – AUTO SPEED/AUTO VANES SYSTEM RUN – VANES CLOSING SYSTEM RUN –...
  • Page 39 SYSTEM READY TO START SYSTEM SHUTDOWN – PRESS STATUS SYSTEM RUN – HIGH PRESSURE LIMIT IN EFFECT SYSTEM RUN – PRESS STATUS MACH = X.XX; MACH’S X.XX WARNING: COND OR EVAP TRANSDUCER ERROR PRESS STATUS NO MALFUNCTION DETECTED ENGINE RPM = XXXX; RPMS = XXXX WARNING –...
  • Page 40 MON XX:XX AM – FLOW SWITCH MON XX:XX AM – SYSTEM CYCLING – AUTOSTART COMP. COASTDN; ENG SHTDN-PRESS STATUS MON XX:XX AM – MULTI UNIT CYCLING – AUTOSTART MON XX:XX AM – POWER FAILURE COMPR. COASTDN; ENG COOLDN-PRESS STATUS MON XX:XX AM – INTERNAL CLOCK – AUTOSTART REMOTE STOP COMPR SHUTDOWN –...
  • Page 41 MON XX:XX AM – HIGH PRESSURE VANE MOTOR SWITCH OPEN SYSTEM READY TO START – PRESS STATUS MON XX:XX AM – EVAP TRANS OR PROBE ERROR SYSTEM READY TO START – PRESS STATUS MON XX:XX AM HIGH DISCHARGE TEMP START SEQUENCE INITIATED MON XX:XX AM HIGH OIL TEMP START SEQ.
  • Page 42 MON XX:XX LOW OIL TEMP DIFF – AUTOSTART FAULTY PROXIMITY PROBE DAY – TIME – OIL PRESSURE XDCR ERROR MON XX:XX AM – HIGH SPEED DRAIN TEMP MON XX:XX AM FAULTY DISCHARGE TEMP SENSOR MON XX:XX AM – PROX SENSOR SAFETY SHUTDOWN MON XX:XX AM –...
  • Page 43 REPLACE RTC.U16 – REPROGRAM SETPOINTS MON XX:XX AM DC UNDER VOLTAGE LD00690 MON XX:XX AUX SAFETY SHUTDOWN 24673A(D) WARNING – PRV POT OR SWITCH ERROR WARNING – CONDENSER TRANSDUCER OR PROBE ERROR LD00691...
  • Page 44 ENGINE START SIGNAL COMPR. COASTDOWN: ENGINE COOLDOWN COMPR SHUTDOWN: ENGINE COOLDOWN ENGINE WARMUP MANUAL ENGINE CYCLING START SEQ. INITIATED – COMPRESSOR PRELUBE COMPRESSOR ROTATION FAULT COMPR. COASTDN; ENGINE SHTDN – PRESS STATUS SYSTEM RUN; STOP SEQUENCE INITIATED DAY TIME COMPRESSOR ROTATION FAULT WARNING –...
  • Page 45 LOW GEAR OIL TEMPERATURE SENSOR ENGINE VIBRATION = X.XX IN/SEC [0.40/0.65/0.60] WARNING – HIGH ENGINE VIBRATION DETECTED ENGINE VIBRATION LEVEL = X.XX IN/SEC SUN 12:00 AM LOW GEAR OIL TEMP – AUTO START ENGINE VIBRATION SENSOR LOW GEAR OIL TEMP SENSE FAULT LOW GEAR OIL TEMP SENSE FAULT WARNING –...
  • Page 46 COMPRESSOR OVERSPEED ENGINE OVERLOAD SURGE SAFETY ENGINE CRANKING FAULT LOW GEAR OIL TEMPERATURE SWITCH SUN 12:00 AM LOW GEAR OIL TEMP SENS FAULT HIGH AFTER COOLER WATER TEMPERATURE ENGINE FAULT SURGE SAFETY SHUTDOWN PLC FAILURE CLUTCH FAILURE ENGINE OVERSPEED...
  • Page 47 LOW ENGINE OIL PRESSURE SURFACE SPEED CONTROL ACTIVE HIGH ENGINE GLYCOL TEMP HIGH ENGINE JACKET TEMP COMPR COASTDN; ENGINE SHTDN – PRESS STATUS SURFACE SPEED CONTROL: ACTIVE DAY TIME HIGH ENGINE GLYCOL TEMP COMPR SHTDN; ENGINE COOLDN – PRESS STATUS SURFACE SPEED CONTROL: ACTIVE SUN 12:00 AM HIGH ENGINE VIBRATION FAULT SURFACE SPEED CONTROL: NOT ACTIVE...
  • Page 48 SYSTEM READY TO START ENGINE LOAD LIMIT = 100%...
  • Page 49 SYSTEM RUN; STOP SEQ. INITIATED SYSTEM READY TO START – VANES CLOSED ENGINE START SIGNAL COMPR COASTDOWN; ENGINE COOLDOWN ENGINE WARMUP COMPR SHUTDOWN; ENG COOLDOWN START SEQUENCE INITIATED – COMPRESSOR PRE-LUBE SYSTEM SHUTDOWN COMPR COASTDOWN; ENG SHTDN-PRESS STATUS...
  • Page 50 LD00168 COMPRESSOR COASTDOWN – ENGINE SHUTDOWN...
  • Page 52 MON 10:30 AM – LOW WATER TEMPERATURE – AUTOSTART...
  • Page 53 SYSTEM SHUTDOWN – PRESS STATUS START SEQUENCE INITIATED...
  • Page 54 COMPRESSOR SHUTDOWN; ENGINE COOLDOWN SYSTEM SHUTDOWN – PRESS STATUS SYSTEM RUN – STOP SEQUENCE INITIATED COMPRESSOR COASTDOWN: ENGINE COOLDOWN...
  • Page 55 27704A...
  • Page 56 28699A...
  • Page 58 SYSTEM SHUTDOWN – PRESS STATUS DAY 10:00 AM – LOW OIL TEMP – AUTOSTART...
  • Page 59 WARNING – HIGH ENGINE VIBRATION DETECTED LOW GEAR OIL TEMPERATURE SWITCH SUN 12:00 AM LOW GEAR OIL TEMP SENS FAULT GEAR LUBE PUMP ENGINE VIBRATION LEVEL = X.XX IN./SEC. ENGINE VIBRATION SENSOR ENGINE VIBRATION SHUTDOWN = X.XX IN/SEC. (0.40/0.65/0.60)
  • Page 60 WARNING – HIGH ENGINE VIBRATION DETECTED SUN 12:00 AM HIGH ENGINE VIBRATION FAULT LD02316 LD02220 LD02219...

  • Page 64: Low Oil Pressure

    LOW OIL PRESSURE...
  • Page 67 LD00170...
  • Page 72 36USC380 P .O. Box 1592, York, Pennsylvania USA 17405-1592 Subject to change without notice. Printed in USA Copyright © by York International Corporation 1997 ALL RIGHTS RESERVED Form 160.60-O1 (1197) Supersedes: 160.60-O1 (1296)

This manual is also suitable for:

Millennium yb seriesMillennium ygnbnbg4 g3408Millennium ybmcmcg4 g3406