York MILLENNIUM YIA-ST-1A1 Operation Manual
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York MILLENNIUM YIA-ST-1A1 Operation Manual

York MILLENNIUM YIA-ST-1A1 Operation Manual

Absorption liquid chillers
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MILLENNIUM
TM
OperationS MANUAL
OPERATORS MANUAL
Supersedes: 155.16-O3 (894)
Form 155.16-O3 (797)
ABSORPTION LIQUID CHILLERS
28342A
MODELS YIA-ST-1A1 THROUGH YIA-ST-14F3 (STEAM)
MODELS YIA-HW-1A1 THROUGH YIA-HW-14F3 (HOT WATER)

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Summary of Contents for York MILLENNIUM YIA-ST-1A1

  • Page 1 MILLENNIUM CONTROL CENTER OPERATIONS MANUAL OPERATORS MANUAL Supersedes: 155.16-O3 (894) Form 155.16-O3 (797) ABSORPTION LIQUID CHILLERS 28342A MODELS YIA-ST-1A1 THROUGH YIA-ST-14F3 (STEAM) MODELS YIA-HW-1A1 THROUGH YIA-HW-14F3 (HOT WATER)
  • Page 2 LiBr Concentration Calculator ..............System Setpoints ..................Displaying System Setpoints ..............PROGRAMMING THE ISOFLOW CONTROL CENTER Programming System Setpoints ............... SERVICE KEYS Unit Keys ....................Other Service Keys ................... OPERATING MODES .................... 102 UNIT SWITCH ....................... 103 DISPLAY MESSAGES ................... 103 YORK INTERNATIONAL...
  • Page 3 (steam units only); steam or hot water supply tem- An absorption chiller functions by heating a lithium bro- perature sensor; automatic decrystallization (ADC) mide solution to generate hot refrigerant vapor and temperature sensor; refrigerant temperature-sensor; strong solution (64.5% lithium bromide). YORK INTERNATIONAL...
  • Page 4 (50 Hz Models YIA-10E3 – YIA- ERANT PUMP SHUTDOWN DELAY” timer determines 14F3 with Franklin pumps); refrigerant pump; purge the time delay between detection of insufficient refriger- pump; chilled water pump, condenser water pump, and ant level and refrigerant pump shutdown; and REFRIG- YORK INTERNATIONAL...
  • Page 5 If the unit is kept from starting because the the program compares the state of 1F to 3F. Since each leaving water temperature is below setpoint, a cycling float switch closes as the refrigerant level rises against YORK INTERNATIONAL...
  • Page 6 VICE mode from the keypad. When a unit is commis- shutdown. sioned, it is sometimes necessary to limit the maximum load. This is accomplished by entering the special ac- A feature limits the steam or hot water control valve open- YORK INTERNATIONAL...
  • Page 7 ADC SERVICE mode via the special access code using the (due to low refrigerant level), The normal ADC is not DISPLAY DATA key in PROGRAM mode. Note that YORK INTERNATIONAL...
  • Page 8 These parameters are stored in memory and ac- TEMP LOAD LIMIT”. cessed based on the YORK part number of the value used on the unit. This part number is entered by a quali- When the unit is equipped with EPROM version A.02F.00, fied serviced technician using a procedure in the “Ser-...
  • Page 9 SYSTEM RUN-PULL DOWN LIMIT. later), the solution concentration is automatically calcu- lated using the strong solution temperature (as sensed Units with YORK’s optional Integrated Systems Network by thermistor RT3) and the refrigerant temperature leav- allow remote start/stop, remote reset of leaving chilled ing the condenser (as sensed by thermistor RT9).
  • Page 10 33.0°F (.5°C) (provided by the low refrigerant temperature switch or sensor), the chilled wa- On units equipped with Buffalo pumps, the “REFRIG- ter pump shall continue to run for a minimum of 30 min- ERANT PUMP STARTUP DELAY” setpoint timer is dis- YORK INTERNATIONAL...
  • Page 11 OFF to ON position also clears the counter. continues to run. AFTER about 30 minutes, the purge The default value for the service interval is 10 hours. cycle is complete and the manual purge valve is closed. YORK INTERNATIONAL...
  • Page 12 WATER TEMP < SETPOINT” SETPOINT AS STATUS PAGE 43 CYCLING SHUTDOWN- STEAM/ DISPLAY “DAY-TIME- HOT WATER STEAM/HOT WATER VALVE POS. VALVE LOADED ABOVE > 10% 10%” AS STATUS PAGE 43 CLOSE CHILLED WATER PUMP CONTACTS TB4-44/45 DISPLAY “COOLING START SEQUENCE INITIATED” YORK INTERNATIONAL...
  • Page 13 30 SECOND TIMER CLOSE CONDENSER WATER PUMP CONTACTS TB4-55/56 START 30 SECOND TIMER CYCLING SHUTDOWN- CONDENSER 30 SECOND DISPLAY “DAY- WATER FLOW TIMER TIME-CONDENSER SWITCH ELAPSED FLOW SWITCH- CLOSED AUTOSTART” AS STATUS CLEAR 30 SECOND TIMER PAGE 45 YORK INTERNATIONAL...
  • Page 14 WATER SHUTOFF VALVE ENERGIZE 6SOL TO OPEN STEAM STEAM CONDENSATE UNIT DRAIN VALVE START REFRIGERANT PUMP (2M) BUFFALO AND GENERATOR PUMP (4M) (50 HZ MODELS YIA-10E3 – YIA-14F3) PUMPS START REFRIGERANT FLOAT SWITCH SHUTDOWN SETPOINT TIMER (20 - 60 MIN) YORK INTERNATIONAL...
  • Page 15 AS STATUS ELAPSED PAGE 87 START REFRIG PUMP FLOAT FLOAT SHUTDOWN DELAY SETPOINT SW 1F SW 3F TIMER (1-45 SEC) OPEN OPEN WHEN 3F OPENS SHUTDOWN REFRIG PUMP WHEN “REFRIG PUMP SHUTDOWN DELAY- SETPOINT TIMER” (3F) HAS ELAPSED YORK INTERNATIONAL...
  • Page 16 MAX ALLOWED LOAD VALUE PULLDOWN PULLDOWN REMOTE LOAD LIMIT < LOAD LIMIT > MODE FAX-4500 PWM LOAD LOAD LIMIT LIMIT UNIT LOADING = PULLDOWN LOAD LIMIT DISPLAY “SYSTEM RUN- PULLDOWN LIMIT” LIMIT LOADING TO PULLDOWN DEMAND LIMIT (%) VALUE YORK INTERNATIONAL...
  • Page 17 LIMIT UNIT LOADING TO PWM REMOTE LOAD LIMIT (10-20)-100% REMOTE DISPLAY “SYSTEM RUN TEMP REMOTE LOAD LIMIT” SETPOINT °F OFFSET = CONTROL PER BASE (PULSEWIDTH-1) (REMOTE RESET TEMP RANGE) LEAVING WATER TEMP SETPOINT (40-77°F) SETPOINT = BASE SETPOINT + °F OFFSET YORK INTERNATIONAL...
  • Page 18 CHILLED WATER TEMP TO PAGE 46 LEAVING WATER TEMP SETPOINT AUTO SOLENOID CONTROL REFRIG LCWT ENERGIZE (OPEN) LEVEL > (SP-2) & REFRIGERANT LEVEL FLOAT SW < (SP+5) SOLENOID VALVE (3SOL) OPEN DE-ENERGIZE (CLOSE) REFRIGERANT LEVEL SOLENOID VALVE (3SOL) YORK INTERNATIONAL...
  • Page 19 SAFETY SHUTDOWN INPUT @ TB-31 SAFETY SHUTDOWN-DISPLAY CLOSED “DAY-TIME-AUXILIARY SAFETY SHUTDOWN” AS STATUS PAGE 49 CHECK REMOTE/LOCAL CYCLING INPUT @ TB2-13 CYCLING SHUTDOWN- DISPLAY CLOSED “DAY-TIME-SYSTEM CYCLING AUTOSTART” AS STATUS CHECK MULTI-UNIT PAGE 50 CYCLING INPUT @ TB2-9 YORK INTERNATIONAL...
  • Page 20 AUTOSTART” AS STATUS PAGE 52 CHECK LOW REFRIGERANT TEMP SAFETY CUTOUT @ RELAY BOARD TB3-81 SAFETY SHUTDOWN-DISPLAY “DAY-TIME-LOW REFRIGERANT TEMP TRIPPED DIGITAL” AS STATUS CHECK REFRIGERANT PAGE 53 TEMP @ RT 8 SOLUTION > 35.5°F (ABSORBER) (1.9°C) PUMP RUNNING YORK INTERNATIONAL...
  • Page 21 STABILIZER REFRIGERANT SOLENOID VALVE (2SOL) CLEAR “LOW REFRIGERANT TEMP” WARNING MESSAGE WHEN WARNING RESET KEY IS DE-ENERGIZE SOLUTION PUMP (1M) PRESSED IN SERVICE MODE < 34°F (ABSORBER PUMP ON 50 HZ (1.1°C) MODELS YIA-10E3 – YIA-14F3 WITH FRANKLIN PUMPS) YORK INTERNATIONAL...
  • Page 22 TB4-89/90 TO SOUND “WARNING-FAULTY AUDIBLE ALARM UNTIL STRONG SOLN TEMP RESET WITH SENSOR” “WARNING RESET KEY” CLEAR “FAULTY STRONG STRONG SOLN TEMP SENSOR” SOLN TEMP WARNING MESSAGE WHEN SENSOR WARNING RESET KEY IS WARNING PRESSED IN SERVICE MODE IN EFFECT YORK INTERNATIONAL...
  • Page 23 “DAY-TIME-GEN SHELL HIGH (169.4°C) TEMP-ANA” AS STATUS PAGE 62 CHECK GENERATOR HIGH TEMP SAFETY INPUT (HTI) @ DIGITAL INPUT BOARD J2-1. CALIBRATED TO TRIP @ 330°F (165.6°C) SAFETY SHUTDOWN-DISPLAY TRIPPED “DAY-TIME-GEN SHELL HIGH TEMP- MAN RESET” AS STATUS PAGE 63 YORK INTERNATIONAL...
  • Page 24 “DAY-TIME-GEN SHELL HIGH PRESS-DIG” AS STATUS PAGE 66 CHECK GENERATOR PRESSURE @ PT1 SAFETY SHUTDOWN-DISPLAY > 15 PSIA “DAY-TIME-CHILLED WATER (103.4 kPa) FLOW SWITCH” AS STATUS PAGE 67 > 10 PSIA DISPLAY “WARNING-HIGH GEN PRESSURE OVERRIDE” (68.9 kPa) YORK INTERNATIONAL...
  • Page 25 OVERRIDE” WARNING MESSAGE WHEN WARNING RESET PRESSED IN SERVICE MODE EPROM VERSION A.02F.02 LATER PRIMARY LIMITED ADC IN EFFECT SECOND- ARY LIMITED ADC IN EFFECT NORMAL ADC IN EFFECT CHECK AUTO-DECRYSTALLIZATION (ADC) TEMP @ RT2 >160°F START 10-MINUTE (71.1°C) ADC TIMER YORK INTERNATIONAL...
  • Page 26 (REFRIG PUMP TEMP PUMPS LMTD AUTO SHUTDOWN) @ RT2 >150°F DECRYSTALLIZATION (65.6°C) MESSAGE PERFORM ALLOW LOADING TO SECONDARY >50% STEAM/HOT LIMITED ADC WATER VALVE POSITION TEMP @ TIMER RT2 <150°F START 15-MINUTE ELAPSED (65.6°C) SECONDARY LIMITED ADC TIMER YORK INTERNATIONAL...
  • Page 27 “DAY-TIME-RFS-CHK FOR CRYSTALLIZATION” AS STATUS EPROM VERSION A.02F.00 PAGE 86 CHECK LEAVING CHILLED WATER TEMP @ RT 1 > SET- POINT CHECK REFRIGERANT TEMP LEAVING THE CONDENSER (RTLC) @ RT 9 CHECK STRONG SOLUTION TEMP @ RT 3 YORK INTERNATIONAL...
  • Page 28 PUT STRONG STRONG SOLUTION SOLUTION TEMP SOLUTION TEMP CONTROL IN TEMP < CONTROL EFFECT (ALLOWED MESSAGE DISPLAY “SYSTEM RUN-STRONG SOLUTION TEMP CONTROL” REMOVE STRONG SOLUTION TEMP CONTROL-RETURN TO AUTOMATIC LEAVING CHILLED WATER TEMP CONTROL INHIBIT STEAM/HOT WATER VALVE LOADING YORK INTERNATIONAL...
  • Page 29 < 74°F VERSION SOLUTION TEMP (23.3°C) A.02F.02 OR @ RT3 LATER > LOW ECWT DISPLAY “SYSTEM SOLUTION TEMP RUN-LOW ECDWT OVERRIDE LIMIT IN EFFECT” SETPOINT LIMIT UNIT LOADING PER STEAM/HOT WATER VALVE PROFILE AS PER PROGRAMMED VALVE PART NUMBER YORK INTERNATIONAL...
  • Page 30 LOADING TO > 60% TEMP HIGH LIMIT” STEAM/HOT WATER VALVE POSITION PUT ENTERING CONDENSER WATER TEMP HIGH LIMIT IN EFFECT- LIMIT STEAM/HOT WATER VALVE POSITION TO 60% CLOSE ALARM CONTACTS TB4-89/90 TO SOUND AUDIBLE ALARM UNTIL RESET WITH WARNING RESET KEY YORK INTERNATIONAL...
  • Page 31 CHECK GENERATOR PUMP OVERLOADS INPUT @ TB1-18 CHECK REFRIGERANT OPEN PUMP OVERLOADS INPUT @ TB1-70 SAFETY SHUTDOWN SAFETY SHUTDOWN DISPLAY “DAY-TIME-GEN DISPLAY “DAY-TIME-REFRIG OPEN PUMP OVERLOADS OPEN” PUMP OVERLOADS OPEN” AS STATUS AS STATUS PAGE 77 PAGE 71 YORK INTERNATIONAL...
  • Page 32 SUPPLY TEMP” (140.6°C) WARNING IN EFFECT CLOSE ALARM CONTACTS TB4-89/90 DISPLAY “WARNING TO SOUND AUDIBLE HIGH STEAM SUPPLY ALARM TEMPERATURE” < 265.5°F (129.7°C) HIGH CLOSE ALARM CONTACTS HOT WATER TB4-89/90 TO SOUND TEMP WARNING AUDIBLE ALARM IN EFFECT YORK INTERNATIONAL...
  • Page 33 SUPPLY PRESSURE @ PT2 SAFETY SHUTDOWN- > 29 PSIA DISPLAY “DAY-TIME-HIGH (199.9 kPa) STEAM SUPPLY PRES- SURE” AS STATUS PAGE 82 PUT HIGH STEAM SUPPLY PRESSURE >26 PSIA WARNING IN EFFECT (179.3 kPa) DISPLAY “WARNING- HIGH STEAM SUPPLY PRESSURE” YORK INTERNATIONAL...
  • Page 34 CLEAR PURGE PUMP OVERLOAD WARNING MESSAGE CLOSE ALARM WHEN WARNING CONTACTS TB4-89/90 RESET KEY TO SOUND AUDIBLE PRESSED IN ALARM UNTIL RESET SERVICE MODE WITH WARNING RESET KEY COMPARE PURGE PUMP OPERATING HOURS TO PURGE PUMP SERVICE INTERVAL SETPOINT YORK INTERNATIONAL...
  • Page 35 SERVICE WARNING MESSAGE PERFORM MANUAL PURGE PURGE OPERATION DESIRED PURGE PUMP RUNS > 10 MIN- UTES INCREMENT TOTAL (LIFETIME) AND DELETE OLDEST DAY’S 12:00 7-DAY PURGE COUNT FROM 7-DAY MIDNIGHT COUNTERS WHEN PURGE COUNTER PURGE PUMP IS TURNED OFF YORK INTERNATIONAL...
  • Page 36 WHEN WARNING RESET WARNING KEY PRESSED IN IN EFFECT SERVICE MODE POWER PAGE 83 FAILURE LOCAL PAGE 14 REMOTE STOP DE-ENERGIZE 1R RELAY TO CLOSE STEAM/HOT WATER SHUTOFF VALVE DILUTION CYCLE START 6-MINUTE DILUTION CYCLE TIMER-BEGIN DILUTION CYCLE YORK INTERNATIONAL...
  • Page 37 LEVEL FLOAT SWITCH (1F) @ TB1-10 TERMINATE DISPLAY “DILUTION INTERRUPTED-REF DILUTION OPEN ? LEVEL FLOAT SW” SHUTDOWN AS STATUS ALL PUMPS DE-ENERGIZE 6 SOL TO STEAM CLOSE STEAM UNIT CONDENSATE DRAIN VALVE PAGE 11 CHECK REFRIGERANT TEMP @ RT 8 YORK INTERNATIONAL...
  • Page 38 “WARNING RESET KEY” REFRIG BUFFALO PUMP PUMPS RUNNING ENERGIZE (OPEN) STABILIZER REFRIGERANT SOLENOID VALVE (2SOL) REFRIG TEMP < 34°F (1.1°C) TERMINATE DILUTION- SHUTDOWN ALL PUMPS EXCEPT CHILLED WATER PUMP DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM UNIT CONDENSATE DRAIN VALVE YORK INTERNATIONAL...
  • Page 39 REFRIGERANT TEMP- ANALOG” AS STATUS PAGE 56 REFRIG TEMP > 36°F (2.2°C) DE-ENERGIZE (CLOSE) STABILIZER REFRIGERANT SOLENOID VALVE (2 SOL) REFRIG START ALL TEMP > 37°F PUMPS (2.8°C) 30 MIN SHUTDOWN CHILLED WATER CHILLED PUMP TIMER WATER PUMP ELAPSED YORK INTERNATIONAL...
  • Page 40 OVERLOAD INPUT FRANKLIN @ TB1-71 PUMPS CHECK SOLUTION PUMP OVERLOADS OPEN INPUT @ TB-71 SAFETY SHUTDOWN- DISPLAY “DAY-TIME- ABSORBER PUMP SAFETY SHUTDOWN- OVERLOADS OPEN” DISPLAY “DAY-TIME- AS STATUS OPEN SOLUTION PUMP OVERLOADS OPEN” AS STATUS PAGE 74 PAGE 68 YORK INTERNATIONAL...
  • Page 41 SAFETY AS STATUS SHUTDOWN-DISPLAY “DAY-TIME-GEN PUMP OVERLOADS OPEN” AS STATUS PAGE 71 PAGE 77 CHECK CHILLED WATER FLOW SWITCH @ TB2-12 TERMINATE DILUTION- OPEN? SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE UNIT DRAIN VALVE YORK INTERNATIONAL...
  • Page 42 ENERGIZE 6 SOL TO OPEN STEAM DISPLAY “DAY-TIME- CONDENSATE FLS-CHECK FOR DRAIN VALVE CRYSTALLIZATION” PAGE 11 AS STATUS PAGE 35 UNIT IN STOP/ RESET OPERA- OPEN SAFETY TOR PRESS STATUS WARNING RESET CONTACTS IN SERVICE TB4-42/43 MODE PAGE 11 YORK INTERNATIONAL...
  • Page 43 PAGE 11 UNIT SW DILUTION- IN STOP/ SHUTDOWN ALL RESET PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM OPERATOR STEAM CONDENSATE UNIT PRESS WARNING DRAIN VALVE RESET IN SERVICE MODE OPEN SAFETY PAGE 11 STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 44 UNIT OPERATION SUBROUTINES PAGE 11 CLOSE CYCLING STATUS CONTACTS TB4-40/41 LVG WATER TEMP > SETPOINT OPEN CYCLING STATUS CONTACTS PAGE 11 TB4-40/41 PAGE 11 CLOSE CYCLING STATUS CONTACTS TB4-40/41 STEAM/ WATER > VALVE OPEN CYCLING STATUS CONTACTS PAGE 11 TB4-40/41 YORK INTERNATIONAL...
  • Page 45 CLOSE SAFETY STATUS CONTACTS TB4-42/43 START 30 MINUTE CHILLED WATER PUMP TIMER OPEN CHILLED CHILLED WATER PUMP WATER PUMP CONTACTS TIMER TB4-44/45 ELAPSED UNIT SW IN STOP/RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 LOCAL OR REMOTE START PAGE 11 YORK INTERNATIONAL...
  • Page 46 OPEN CHILLED WATER PUMP CONTACTS TB4-44/45 OPEN CONDENSER WATER PUMP CONTACTS TB4-55/56 OPEN CYCLING COND STATUS FLOW SW CONTACTS CLOSED TB4-40/41 PAGE 11 UNIT SW IN STOP/RESET OPEN CYCLING STATUS CONTACTS TB4-40/41 LOCAL OR REMOTE/ START PAGE 11 YORK INTERNATIONAL...
  • Page 47 UNIT CONDENSATE DRAIN VALVE BYPASS DILUTION- SHUTDOWN ALL PUMPS COND OPEN CYCLING FLOW SW STATUS CONTACTS CLOSED TB4-40/41 PAGE 11 CHECK STRONG SOLUTION TEMP @ RT3 SAFETY SHUTDOWN DISPLAY “DAY-TIME-CDFL- > 136°F CHECK FOR (57.8°C) CRYSTALLIZATION” AS STATUS YORK INTERNATIONAL...
  • Page 48 UNIT SW IN STOP/ RESET CLOSE SAFETY STATUS CONTACTS TB4-42/43 OPEN CYCLING STATUS CONTACTS TB4-40/41 LOCAL UNIT SW REMOTE IN STOP/ START RESET PAGE 11 OPERATOR PRESS WARNING RESET IN SERVICE MODE OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 49 SW IN LCWT STATUS CONTACTS STOP/ > SP TB4-40/41 RESET PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 50 SW IN SAFETY STATUS CONTACTS STOP/ INPUT TB4-42/43 RESET OPEN PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 51 6 MIN. DILUTION TIMER ELAPSED CHECK MICRO BOARD PROGRAM JUMPER J54 TERMINATE DILUTION – SHUTDOWN ALL PUMPS EXCEPT CHILLED WATER PUMP TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 52 6 MIN. DILUTION TIMER ELAPSED CHECK MICRO BOARD PROGRAM JUMPER J54 TERMINATE DILUTION – SHUTDOWN ALL PUMPS EXCEPT CHILLED WATER PUMP TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 53 EXIT DILUTION CYCLE PAGE 42 OPEN CYCLING SCHEDULED STATUS CONTACTS TB4-40/41 START PAGE 11 LOCAL REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 54 BYPASS DILUTION CYCLE – SHUTDOWN ALL PUMPS EXCEPT CHILLED WATER PUMP START 30 MINUTE CHILLED WATER PUMP TIMER CHECK REEFRIGERANT TEMP @ RT 8 30 MIN. SHUTDOWN CH WATER > 37°F CHILLED PUMP TIMER (2.8°C) WATER ELAPSED PUMP YORK INTERNATIONAL...
  • Page 55 AS STATUS ENTER DILUTION CYCLE @ PAGE 36 SHUTDOWN 30 MIN. CHILLED CHILL WATER PUMP TIMER WATER ELAPSED PUMP EXIT DILUTION CYCLE @ PAGE 42 CUTOUT TRIPPED 6 MIN. DILUTION CUTOUT TIMER TRIPPED UNIT ELAPSED SW IN STOP/ RESET YORK INTERNATIONAL...
  • Page 56 STATUS CONTACTS TB4-42/43 DE-ENERGIZE 6 SOL TO CLOSE STEAM LOCAL CONDENSATE OR REMOTE DRAIN VALVE START PAGE 11 LOCAL OR REMOTE START CUTOUT TRIPPED PAGE 11 UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 57 START 30 MINUTE CHILLED WATER PUMP TIMER PAGE 38 CHECK REEFRIGERANT TEMP @ RT 8 DE-ENERGIZE (CLOSE) STABILIZER >36°F REFRIGERANT (2.2°C) SOLENOID VALVE (2 SOL) 30 MIN. SHUTDOWN CH WATER > 37°F CHILLED PUMP TIMER (2.8°C) WATER ELAPSED PUMP YORK INTERNATIONAL...
  • Page 58 PAGE 35 SHUTDOWN 30 MIN. CHILLED CHILL WATER PUMP TIMER WATER PUMP ELAPSED EXIT DILUTION CYCLE @ PAGE 42 REFRIG- TEMP > 37°F (2.8°C) 6 MIN. REFRIG DILUTION TEMP TIMER > 37°F UNIT ELAPSED (2.8°C) SW IN STOP/ RESET YORK INTERNATIONAL...
  • Page 59 DE-ENERGIZE 6 SOL TO CLOSE STEAM LOCAL CONDENSATE OR REMOTE DRAIN VALVE START PAGE 11 LOCAL OR REMOTE REFRIG. START TEMP > 37°F (2.8°C) PAGE 11 UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 60 BYPASS DILUTION CYCLE – SHUTDOWN ALL PUMPS EXCEPT CHILLED WATER START 30 MINUTE CHILLED WATER PUMP TIMER CHECK REEFRIGERANT TEMP @ RT 8 CHILL 30 MIN. SHUTDOWN WATER CH WATER CHILLED PUMP TIMER FLOW SWITCH WATER ELAPSED CLOSED PUMP YORK INTERNATIONAL...
  • Page 61 30 MIN. CHILLED CHILL WATER WATER PUMP TIMER ELAPSED PUMP EXIT DILUTION CYCLE @ PAGE 42 UNIT SW IN STOP/ RESET 6 MIN. UNIT DILUTION SW IN OPERATOR TIMER STOP/ ELAPSED RESET PRESS WARNING RESET KEY IN SERVICE MODE YORK INTERNATIONAL...
  • Page 62 OPEN SAFETY STATUS CONTACTS TB4-42/43 DE-ENERGIZE 6 SOL TO CLOSE STEAM LOCAL CONDENSATE OR REMOTE DRAIN VALVE START PAGE 11 LOCAL OR REMOTE START PAGE 11 UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 63 SW IN SOLUTION STATUS CONTACTS STOP/ TEMP <336°F TB4-42/43 RESET (168.9°C) PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 64 OPEN STATUS SW IN MANUALLY STATUS CONTACTS STOP/ RESET TB4-42/43 RESET PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 65 @ RT 3 STATUS CONTACTS TB4-42/43 START ALL >136°F PUMPS (57.7°C) PAGE ENERGIZE 6 SOL DISPLAY “DAY-TIME-MCFL- TO OPEN STEAM STEAM CHK FOR CRYSTALLIZATION” CONDENSATE DRAIN UNIT AS STATUS VALVE FLOAT SW (2F) START 6-MINUTE CLOSED DILUTION CYCLE TIMER YORK INTERNATIONAL...
  • Page 66 ALL PUMPS TB4-42/43 OPEN SAFETY STATUS LOCAL CONTACTS OR REMOTE TB4-42/43 START PAGE 11 PAGE 11 STEAM DE-ENERGIZE 6 SOL TO CLOSE UNIT STEAM CONDENSATE DRAIN VALVE UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS PAGE 11 TB4-42/43 YORK INTERNATIONAL...
  • Page 67 SW IN STATUS CONTACTS SAFETY (HP1) STOP/ TB4-42/43 TRIPPED RESET PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 68 PRESS (PT1) STATUS CONTACTS STOP/ >14.99 PSIA TB4-42/43 RESET (103.4 kPa) PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 69 STATUS CONTACTS TB4-42/43 DE-ENERGIZE STEAM 6 SOL TO CLOSE UNIT STEAM CONDENSATE DRAIN VALVE BYPASS DILUTION CYCLE – SHUTDOWN ALL PUMPS SOLUTION CHECK STRONG PUMP SOLUTION TEMP OVERLOAD @ RT 3 CLOSED INCREMENT >136°F SOLUTION PUMP (57.7°C) OVERLOAD COUNTER YORK INTERNATIONAL...
  • Page 70 CLOSED START 6 MINUTE DILUTION CYCLE TIMER UNIT SW IN STOP/ RESET ENTER DILUTION CYCLE @ PAGE 35 OPERATOR PRESS WARNING RESET IN SERVICE MODE EXIT DILUTION CYCLE @ PAGE 42 OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 71 OPEN SAFETY DILUTION – STATUS SHUTDOWN CONTACTS ALL PUMPS TB4-42/43 DE-ENERGIZE 6 SOL LOCAL TO CLOSE STEAM STEAM OR REMOTE CONDENSATE UNIT START DRAIN VALVE PAGE 11 UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 72 STATUS CONTACTS TB4-42/43 DE-ENERGIZE STEAM 6 SOL TO CLOSE UNIT STEAM CONDENSATE DRAIN VALVE BYPASS DILUTION CYCLE – SHUTDOWN ALL PUMPS REFRIG CHECK STRONG PUMP SOLUTION TEMP OVERLOAD @ RT 3 CLOSED INCREMENT >136°F REFRIGERANT PUMP (57.7°C) OVERLOAD COUNTER YORK INTERNATIONAL...
  • Page 73 CLOSED START 6 MINUTE DILUTION CYCLE TIMER UNIT SW IN STOP/ RESET ENTER DILUTION CYCLE @ PAGE 35 OPERATOR PRESS WARNING RESET IN SERVICE MODE EXIT DILUTION CYCLE @ PAGE 42 OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 74 OPEN SAFETY DILUTION – STATUS SHUTDOWN CONTACTS ALL PUMPS TB4-42/43 DE-ENERGIZE 6 SOL LOCAL TO CLOSE STEAM STEAM OR REMOTE CONDENSATE UNIT START DRAIN VALVE PAGE 11 UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 75 STATUS CONTACTS TB4-42/43 DE-ENERGIZE STEAM 6 SOL TO CLOSE UNIT STEAM CONDENSATE DRAIN VALVE BYPASS DILUTION CYCLE – SHUTDOWN ALL PUMPS REFRIG CHECK STRONG PUMP SOLUTION TEMP OVERLOAD @ RT 3 CLOSED INCREMENT >136°F ABSORBER PUMP (57.7°C) OVERLOAD COUNTER YORK INTERNATIONAL...
  • Page 76 CLOSED START 6 MINUTE DILUTION CYCLE TIMER UNIT SW IN STOP/ RESET ENTER DILUTION CYCLE @ PAGE 35 OPERATOR PRESS WARNING RESET IN SERVICE MODE EXIT DILUTION CYCLE @ PAGE 42 OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 77 TERMINATE STATUS DILUTION – CONTACTS SHUTDOWN TB4-42/43 ALL PUMPS DE-ENERGIZE 6 SOL LOCAL TO CLOSE STEAM STEAM OR REMOTE CONDENSATE UNIT START DRAIN VALVE PAGE 11 UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 78 STATUS CONTACTS TB4-42/43 DE-ENERGIZE STEAM 6 SOL TO CLOSE UNIT STEAM CONDENSATE DRAIN VALVE BYPASS DILUTION CYCLE – SHUTDOWN ALL PUMPS GENERATOR CHECK STRONG PUMP SOLUTION TEMP OVERLOAD @ RT 3 CLOSED INCREMENT >136°F GENERATOR PUMP (57.7°C) OVERLOAD COUNTER YORK INTERNATIONAL...
  • Page 79 CLOSED START 6 MINUTE DILUTION CYCLE TIMER UNIT SW IN STOP/ RESET ENTER DILUTION CYCLE @ PAGE 35 OPERATOR PRESS WARNING RESET IN SERVICE MODE EXIT DILUTION CYCLE @ PAGE 42 OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 80 TERMINATE STATUS DILUTION – CONTACTS SHUTDOWN TB4-42/43 ALL PUMPS DE-ENERGIZE 6 SOL LOCAL TO CLOSE STEAM STEAM OR REMOTE CONDENSATE UNIT START DRAIN VALVE PAGE 11 UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 81 TEMP @ RT7 <269°F (128.3°C) UNIT WATER OPEN SAFETY SW IN SUPPLY @ RT7 STATUS CONTACTS STOP/ < 254°F TB4-42/43 RESET (123.3°C) PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS YORK INTERNATIONAL...
  • Page 82 SW IN STATUS CONTACTS @ RT7 < 289°F STOP/ TB4-42/43 (142.8°C) RESET PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED DE-ENERGIZE 6 SOL TO TERMINATE DILUTION – CLOSE STEAM SHUTDOWN ALL PUMPS CONDENSATE DRAIN VALVE YORK INTERNATIONAL...
  • Page 83 STATUS CONTACTS > 28.9 PSIA STOP/ TB4-42/43 (199.3 kPa) RESET PAGE 11 LOCAL OR REMOTE START 6 MIN. DILUTION TIMER ELAPSED TERMINATE DILUTION – SHUTDOWN ALL PUMPS DE-ENERGIZE 6 SOL TO CLOSE STEAM STEAM CONDENSATE DRAIN VALVE UNIT YORK INTERNATIONAL...
  • Page 84 LOCKOUT TIMER ELAPSED OPERATOR PRESS WARNING RESET KEY IN SERVICE MODE SAFETY SHUTDOWN DISPLAY “DAY-TIME- OPEN CYCLING POWER FAILURE – SHUTDOWN MANUAL RESTART” STATUS CONTACTS OPEN SAFETY AS STATUS TB4-40/41 SHUTDOWN STATUS CONTACTS TB4-42/43 PAGE 11 PAGE 11 YORK INTERNATIONAL...
  • Page 85 TIMER ELAPSED START 6-MINUTE DILUTION CYCLE TIMER ENERGIZE STEAM STEAM CONDENSATE DRAIN UNIT VALVE (6 SOL) ENTER DILUTION CYCLE @ PAGE 35 EXIT DILUTION CYCLE @ PAGE 42 6 MIN. UNIT DILUTION SW IN STOP/ TIMER RESET ELAPSED YORK INTERNATIONAL...
  • Page 86 DILUTION – SHUTDOWN STATUS SHUTDOWN ALL CONTACTS PUMPS TB4-42/43 DE-ENERGIZE 6 SOL LOCAL STEAM TO CLOSE STEAM OR REMOTE UNIT CONDENSATE START DRAIN VALVE PAGE 11 UNIT SW IN STOP/ RESET OPEN SAFETY SHUTDOWN STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 87 DE-ENERGIZE 1R RELAY TO CLOSE STEAM/HOT WATER SHUTOFF VALVE DE-ENERGIZE 6 SOL TO STEAM CLOSE STEAM CONDENSATE UNIT DRAIN VALVE BYPASS DILUTION – SHUTDOWN ALL PUMPS UNIT SW IN STOP/ RESET OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 88 STEAM/HOT WATER SHUTOFF VALVE DE-ENERGIZE 6 SOL TO STEAM CLOSE STEAM CONDENSATE UNIT DRAIN VALVE BYPASS DILUTION – SHUTDOWN ALL PUMPS UNIT SW IN STOP/ RESET FLOAT SWITCH CONFLICT RE- MOVED OPEN SAFETY STATUS CONTACTS TB4-42/43 PAGE 11 YORK INTERNATIONAL...
  • Page 89 ACCESS CODE – This key, along with the Entry keys, is used to enter the 4-digit access code. Entry of the for START, RUN, STOP-RESET functions. This switch cannot be used to start the unit in REMOTE mode. correct access code allows the operator access to PRO- YORK INTERNATIONAL...
  • Page 90 If the I/O Expansion Board pro- REFRIG = XXX.X°F; STRONG SOLN = XXX.X°F gram jumper J12 is installed, all messages dis- played in English language. If removed, all mes- REFRIGERANT TEMP LEAVING THE CONDENSER = XXX.X°F sages displayed in German language. YORK INTERNATIONAL...
  • Page 91 LIFETIME of the unit: Use the CONDENSER WATER TEMPS key as described above to produce the following message: Use the PURGE CYCLE COUNTER display key as de- scribed above to produce the following message: COND LEAVING = XXX.X°F; RETURN = XXX.X°F YORK INTERNATIONAL...
  • Page 92 095.0°F).The CANCEL key can be used at any time that is determined by the design of that unit. The value is to cancel any entry. programmed into the Control Center at the York factory and must never be changed. The software will prevent 5. Press ENTER key.
  • Page 93 Any time the interval is in effect and the unit is being time using the UNIT switch in LOCAL mode. prevented from further loading, is displayed. After SYSTEM RUN – PULL DOWN LIMIT Note that if only a start time is entered for a particular YORK INTERNATIONAL...
  • Page 94 • Press and release the appropriate Setpoint key, then press and release the DISPLAY HOLD key. The mes- Use the CLOCK setpoint key as described above to pro- sage will be displayed until the DISPLAY HOLD key duce the following message: TODAY IS XX:XX AM/PM 1/1/92 YORK INTERNATIONAL...
  • Page 95 The chiller start and stop times for each day of the To display DATA LOGGER setpoints: week are sequentially displayed, beginning with Sunday and ending with Holiday. The display will con- Refer to YORK, Form 155.16-NO1.2 for operation of this tinuously scroll until the DAILY SCHEDULE key is key. released.
  • Page 96 (i.e., 006) 2. Use the Entry keys to enter desired value. 3. Press and release the ENTER key. 3. Press and release the ENTER key. PROGRAM MODE, SELECT SETPOINT PROGRAM MODE, SELECT SETPOINT message is displayed. message is displayed. YORK INTERNATIONAL...
  • Page 97 6. Use the Entry keys to enter proper calendar date MON START = XX:XX AM, STOP = XX.XX AM (MONTH/DAY/YR). If month and day are single digit entries, precede the entry with “0”. 4. Enter the desired start and stop time per Step 2. For example 02/04/93. YORK INTERNATIONAL...
  • Page 98 PROGRAM MODE, SELECT SETPOINT to move cursor to the day that you wish to designate played. as a holiday. 3. Press the “ ” key. An “ ” will appear next to the se- lected day. YORK INTERNATIONAL...
  • Page 99 VICE mode only. The DISPLAY DATA and HISTORY signal to the hot water valve or steam valve (steam-fed PRINT keys, and certain WARNING RESET functions, unit) at its present position. If the system is running, are enabled in LOCAL, SERVICE, or REMOTE modes. YORK INTERNATIONAL...
  • Page 100 2, 4 GENERATOR PUMP – OFF WARNING – Replace RTC, U16 – Reprogram Setpoints MANUAL DILUTION CYCLE – OFF NOTE: 1. Hot water units only (Micro Board program jumper JP1 is “OUT”) STABILIZER REF SOLENOID VALVE – CLOSED YORK INTERNATIONAL...
  • Page 101 GENERATOR SHELL PRESSURE = XX.XX% be stopped at any time during the cycle by pressing the MANUAL PUMP key. AUTO DECRYSTALLIZATION TEMP = XXX.X°F 4. 50 Hz Models YIA-10E3 – YIA-14F3 equipped with REFRIGERANT LEVEL FLOAT SWITCH – CLOSED YORK INTERNATIONAL...
  • Page 102 Details of the optional printers, REFRIGERANT LEVEL SOLENOID – CLOSED installation and operation instructions are in YORK Form 155.16-NO1.2. REMOTE LOAD LIMIT = XXX% If a printer is connected to the Micro Board,...
  • Page 103 To change operating mode, proceed as follows: 14. Press the ACCESS CODE key to exit the PROGRAM 1. Press the ACCESS CODE key. mode and terminate access to the PROGRAM mode. is displayed. ENTER VALID ACCESS CODE is displayed. ACCESS TO PROGRAM MODE DISABLED YORK INTERNATIONAL...
  • Page 104 The system is running in LOCAL, REMOTE or SER- status message. VICE mode. The operator is instructed to press the STA- TUS key to display a status message. SYSTEM READY TO START – DIL’N – PRESS STATUS Same as above, but dilution cycle is in progress. YORK INTERNATIONAL...
  • Page 105 Control Center that accepts 4- during the ADC, the standard ADC as described above 20mA, 0-10VDC or contact closure inputs (refer to YORK is not performed. Instead, a LIMITED ADC is performed. Form 155.16-PA1). The load limit command can also be...
  • Page 106 DAY-TIME-RFS-CHK FOR CRYSTALLIZATION termined by the valve profile as per the programmed valve part number. (The YORK part number is entered by a qualified service technician using procedure in SYSTEM RUN – STRONG SOLUTION TEMP CONTROL “Service” manual, Form 155.16-M3.) The valve profile (EPROM version A.02F.00 only)
  • Page 107 UNIT switch to the START posi- This analog check acts as a backup check to the digital tion. If the shutdown was caused by the THERMAL check performed by safety device HP1. HP1 is a cali- YORK INTERNATIONAL...
  • Page 108 START position. (Hot Water Units Only) SUN 12:00 AM POWER FAILURE – MANUAL RESTART (EPROM version A.02F.00) The chiller has shut down because there has been a Unit has shut down because the hot water supply tem- YORK INTERNATIONAL...
  • Page 109 The unit will be allowed to restart after the float switch The unit has shut down because the REFRIGERANT conflict has been resolved. To restart unit, press UNIT FLOAT SWITCH SHUTDOWN setpoint timer elapsed switch to STOP/RESET position, then to START posi- before: tion. YORK INTERNATIONAL...
  • Page 110 This message ad- (FLS = Chilled Water Flow Switch) vises the operator to check for crystallization prior to starting the unit. This message indicates the unit is prevented from start- YORK INTERNATIONAL...
  • Page 111 (as measured by Thermistor RT3) was >136°F NOTE: This check is not performed if the unit has shut (57.7°C). down on . If SUN 12:00 AM LOW WATER TEMP – AUTO START Since a dilution cycle cannot be performed during a YORK INTERNATIONAL...
  • Page 112 Indicates the refrigerant temperature decreased to 35.5°F (1.9°C). The unit will be inhibited from further load- ing (the load signal will be allowed to decrease or re- main at its present level, but will not be allowed to in- YORK INTERNATIONAL...
  • Page 113 “Service” manual, Form 155.16-M3 under “Spe- cial Programming Procedures”. This value is pro- JP5 – IN – Standard units, grammed at the YORK factory and should not be arbi- Warning threshold = 250.0°F (121.1°C) trarily changed. Reset threshold = 249.5°F (120.8°C)
  • Page 114 PUMP key is pressed. If more than one condition is pre- venting the pump from operating, the messages will scroll Indicates a manual dilution cycle is inhibited because on the display until the MANUAL PUMP key is released. the refrigerant and solution (absorber and generator YORK INTERNATIONAL...
  • Page 115 PURGE PUMP OVERLOADS OPEN Indicates the purge pump is prevented from starting because the purge pump overload (3OL) is open. The overload must be manually reset. YORK INTERNATIONAL...
  • Page 116 FORM 155.16-O3 NOTES YORK INTERNATIONAL...
  • Page 117 NOTES YORK INTERNATIONAL...
  • Page 118 Proud Sponsor of the 1998 U.S. Olympic Team 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 155.16-O3 (797) Supersedes: 155.16-O3 (894)

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Millennium yia-st-14f3Millennium yia-hw-1a1Millennium yia-hw-14f3

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