Page 3 - READ BEFORE PROCEEDING!; GENERAL SAFETY GUIDELINES
FORM 160.55-O1 (604) 3 YORK INTERNATIONAL This equipment is a relatively complicated apparatus. During installation, operation, maintenance or service, in di vid u als may be exposed to certain components or conditions including, but not limited to: refrigerants, oils, materials under pressure, rota...
Page 4 - CHANGEABILITY OF THIS DOCUMENT; ed and if current lit er a ture; REFERENCE INSTRUCTIONS; NOMENCLATURE; YT K3 C4 E2 — CR J; Model Design Level
YORK INTERNATIONAL 4 FORM 160.55-O1 (604) CHANGEABILITY OF THIS DOCUMENT In complying with YORK’s policy for continuous prod uct improvement, the information contained in this doc u ment is subject to change without notice. While YORK makes no commitment to update or pro vide current in for ma tion ...
Page 5 - TABLE OF CONTENTS
FORM 160.55-O1 (604) 5 YORK INTERNATIONAL SECTION 1 Description of System and Fundamentals of Operation............................... 7 SECTION 2 OptiView Control Center ............................................................................. 9 SECTION 3 Printers .................................
Page 6 - LIST OF FIGURES
YORK INTERNATIONAL 6 FORM 160.55-O1 (604) LIST OF FIGURES FIG. 1 – MODEL YT MILLENNIUM CHILLER .................... 7 FIG. 2 – REFRIGERANT FLOW-THROUGH CHILLER ..... 8 DETAIL A – COMPRESSOR PREROTATION VANES.................................................................. 8 FIG. 3 – CONTROL CENTER ...
Page 7 - SECTION 1; DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION; MODEL YT MILLENNIUM CHILLER
FORM 160.55-O1 (604) 7 YORK INTERNATIONAL combination Logic/Trigger Board that interfaces the Con trol Center with a serial communications link. Ear- li er vintage chillers, such as those encountered in Con trol Cen ter retro Þ t ap pli ca tions are equipped with the Mod “A” starter. This Start er c...
Page 8 - REFRIGERANT FLOW-THRU CHILL ER; able ori; CAPACITY CONTROL; COMPRESSOR PREROTATION VANES; Description of System and Fun da men tals of Operation
YORK INTERNATIONAL 8 FORM 160.55-O1 (604) FIG. 2 – REFRIGERANT FLOW-THRU CHILL ER PREROTATION VANES(See Detail A) SUCTION COOLER ELIMINATOR OIL COOLER LD00924 FLOW CON- TROL SUB-COOL- CON- DISCHARGEBAFFLE DISCHARGE COMPRESSOR able ori Þ ce meters the ß ow of liquid re frig er ant to the cooler to co...
Page 9 - SECTION 2; OPTIVIEW CONTROL CEN TER; Display Messages
FORM 160.55-O1 (604) 9 YORK INTERNATIONAL SECTION 2 OPTIVIEW CONTROL CEN TER INTRODUCTION The YORK OptiView Control Center is a mi cro pro -ces sor based control system for R-11 or R123 cen trif u gal chillers. It controls the leaving chilled liq uid tem per a ture via pre-rotation vane controls and...
Page 10 - • zz – language package revision level (00,
YORK INTERNATIONAL 10 FORM 160.55-O1 (604) version is C.OPT.02.xx.yzz, and is viewable on the DIAGNOSTICS Screen in SERVICE access level. The program can be upgraded by download-ing a new program from a Program Card. Program Cards are shirt-pocket-size portable memory stor-age devices available from...
Page 11 - THIS PAGE INTENTIONALLY LEFT BLANK
FORM 160.55-O1 (604) 11 YORK INTERNATIONAL THIS PAGE INTENTIONALLY LEFT BLANK TO MAINTAIN FORMAT
Page 12 - START; CONTROL CENTER; Decimal; RUN; OptiView Control Center
YORK INTERNATIONAL 12 FORM 160.55-O1 (604) When in this position, the chiller will not run un der any condition. For safe ty reasons, this po si tion is re quired for many maintenance tasks to be com plet ed (such as prox im i ty probe and vane cal i bra tion). In ad di tion, the switch must be plac...
Page 13 - OVERVIEW; INTERFACE CONVENTIONS
FORM 160.55-O1 (604) 13 YORK INTERNATIONAL OVERVIEW The new graphical display on each control pan el al lows a wide variety of information to be pre sent ed to the user. Each screen description in this document will be gin with a section entitled Overview which will de scribe the graphical elements ...
Page 14 - Manual Controls; NAVIGATION
YORK INTERNATIONAL 14 FORM 160.55-O1 (604) Lead ing zeroes are not necessary. If a dec i mal point is nec es sary, press the ‘•’ key (i.e. 45.0). Pressing the ▲ key, sets the entry value to the de fault for that setpoint. Pressing the ▼ key, clears the pres- ent entry. The ◄ key is a backspace key a...
Page 15 - ANALOG INPUT RANGES; LANGUAGES
FORM 160.55-O1 (604) 15 YORK INTERNATIONAL ANALOG INPUT RANGES The following table indicates the valid display range for each of the analog input values. In the event that the input sensor is reading a value outside of these ranges, the < or > symbols will be displayed beside the min i mum or ...
Page 16 - HOME SCREEN
YORK INTERNATIONAL 16 FORM 160.55-O1 (604) HOME SCREEN OVERVIEW When the chiller system is powered on, the above de- fault display appears. The primary values which must be monitored and controlled are shown on this screen. The Home Screen display depicts a visual rep re sen ta tion of the chiller i...
Page 17 - Access Level Re quired:
FORM 160.55-O1 (604) 17 YORK INTERNATIONAL Only qual i Þ ed service personnel utilize this access lev el. This lev el provides advanced control over many of the chiller func tions and allows cal i bra tion of many of the chiller con trols. The access lev els are listed above in hierarchical order be...
Page 18 - SYSTEM SCREEN; Displays the present refrigerant pressure in the evap o ra tor.
YORK INTERNATIONAL 18 FORM 160.55-O1 (604) SYSTEM SCREEN OVERVIEW This screen gives a general overview of common chill er parameters for both shells. DISPLAY ONLY Discharge Temperature Displays the temperature of the refrigerant in its gas- eous state at discharge of the compressor as it travels to ...
Page 19 - Current Limit; None
FORM 160.55-O1 (604) 19 YORK INTERNATIONAL Current Limit Displays the current limit value in use. This value could come from a 0-20mA or 4-20mA, 0-10VDC or 2-10VDC input in An a log Remote mode, PWM signal in Digital Remote mode, MicroGateway interface in ISN mode or a locally pro grammed value. PRO...
Page 20 - EVAPORATOR SCREEN
YORK INTERNATIONAL 20 FORM 160.55-O1 (604) EVAPORATOR SCREEN OVERVIEW This screen displays a cutaway view of the chiller evap- o ra tor. All setpoints relating to the evaporator side of the chiller are maintained on this screen. Animation of the evaporation process indicates whether the chill er is ...
Page 21 - PROGRAMMABLE
FORM 160.55-O1 (604) 21 YORK INTERNATIONAL PROGRAMMABLE L o c a l L e a v i n g C h i l l e d L i q u i d Te m p e r a t u re - Range Access Level Re quired: OP ER A TOR This is the range over which an analog (0-20mA or 4-20mA, 0-10VDC or 2-10VDC) in Analog Remote Mode or a digital signal (PWM) in D...
Page 22 - CONDENSER SCREEN
YORK INTERNATIONAL 22 FORM 160.55-O1 (604) CONDENSER SCREEN OVERVIEW This screen displays a cutaway view of the chiller con dens er. All setpoints relating to the condenser side of the chiller are maintained on this screen. Animation indicates condenser liquid ß ow. This screen also serves as a gate...
Page 23 - Refrigerant Level Setpoint; Ac cess Level Re quired:; Refrigerant Level Control
FORM 160.55-O1 (604) 23 YORK INTERNATIONAL Refrigerant Level Setpoint Displays the setpoint to which the refrigerant level is being con trolled. Ramp Up Time Remaining Displays the time remaining in the period in which the Re frig er ant Level Setpoint is being ramped to the Re frig er ant Level Tar...
Page 24 - PURGE SCREEN; Illuminated when the Oil Valve Solenoid is energized,; Pressure; Displays the pressure in the Purge Tank.; Exhaust Count
YORK INTERNATIONAL 24 FORM 160.55-O1 (604) PURGE SCREEN 00351VIP FIG. 8 OVERVIEW This screen displays a cutaway view of the Purge Tank. LED’s depict the state of the Float switches, Oil Valve solenoid and Air Valve solenoid and the purge exhaust count is displayed. All setpoints relating to the purg...
Page 25 - Bypass Time Left
FORM 160.55-O1 (604) 25 YORK INTERNATIONAL to 60. During this period, purge exhausts are counted and the Exhaust Count displayed is that which has oc- curred in the last number of minutes displayed in the Exhaust Window. After the Exhaust Window reaches 60, the purge exhausts that occurred in the ol...
Page 26 - REFRIGERANT LEVEL CONTROL SCREEN
YORK INTERNATIONAL 26 FORM 160.55-O1 (604) REFRIGERANT LEVEL CONTROL SCREEN FIG. 9 00303VIP OVERVIEW This screen displays a cutaway view of the chiller con- dens er, along with the liquid refrigerant level sensor and the ß ow control valve. All setpoints relating to the liq uid level control are mai...
Page 28 - COMPRESSOR SCREEN; Access Level Required:
YORK INTERNATIONAL 28 FORM 160.55-O1 (604) COMPRESSOR SCREEN OVERVIEW This screen displays a cutaway view of the chiller com- pres sor, revealing the impeller and shows all con di tions as so ci at ed with the compressor. In addition, with the proper Access Level, the pre-rotation vanes may be manua...
Page 29 - HOLD; Pre-Rotation Vane Calibration
FORM 160.55-O1 (604) 29 YORK INTERNATIONAL Full Load AmpsAccess Level Re quired: SER VICE Displays the motor current as a percentage of the Full Load Amps (FLA) value. Phase A, B, C Current (Solid State Starter only) Access Level Required: SERVICE Displays the 3-phase motor current values being read...
Page 30 - HOT GAS BYPASS SCREEN
YORK INTERNATIONAL 30 FORM 160.55-O1 (604) OVERVIEW This screen displays a cutaway view of the Hot Gas By pass Valve. All setpoints relating to Hot Gas Bypass con trol are maintained on this screen. Also, related Hot Gas Bypass control parameters are displayed for ref er ence. Through animation, the...
Page 31 - Hot Gas Bypass Control Mode; Causes an instant return to the Home Screen.
FORM 160.55-O1 (604) 31 YORK INTERNATIONAL in response to surge events detected by the compres-sor Variable Speed Drive Adaptive Capacity Control Board. Hot Gas Bypass Control Mode Indicates whether the Hot Gas Bypass is under au to mat ic, manual or override control. “Override” is dis played dur-in...
Page 32 - Displays the number of surge events that have oc-; SURGE PROTECTION SCREEN; Total Surge Count
YORK INTERNATIONAL 32 FORM 160.55-O1 (604) OVERVIEW (This feature applies to Flash Memory Card ver sion C.MLM.02.02.xxx and later) This screen displays a cutaway view of the chiller com pres sor and all parameters relating to the Surge Pro tec tion feature. All setpoints relating to this fea ture ar...
Page 36 - PRE-ROTATION VANES CALIBRATION SCREEN
YORK INTERNATIONAL 36 FORM 160.55-O1 (604) PRE-ROTATION VANES CALIBRATION SCREEN OVERVIEW This screen displays a cutaway view of the chiller com- pres sor, revealing the pre-rotation vanes and pro vides the capability of calibrating the pre-rotation vanes for either Variable Speed Drive or Hot Gas B...
Page 38 - VSD TUNING SCREEN
YORK INTERNATIONAL 38 FORM 160.55-O1 (604) VSD TUNING SCREEN OVERVIEW This screen displays a cutaway view of the chiller com- pres sor, revealing the pre-rotation vanes and pro vides the capability of manually controlling the pre-rotation vanes. Animation of the pre-rotation vanes indicates the pre-...
Page 40 - OIL SUMP SCREEN; Displays the temperature of the oil in the sump.; Oil Pressure; Access Level Required: VIEW
YORK INTERNATIONAL 40 FORM 160.55-O1 (604) OIL SUMP SCREEN OVERVIEW This screen displays a close-up of the chiller oil sump. DISPLAY ONLY Oil Sump Temperature Displays the temperature of the oil in the sump. Oil Pressure Displays the pressure differential between the high side oil pressure transduce...
Page 41 - ELECTRO-MECHANICAL STARTER SCREEN
FORM 160.55-O1 (604) 41 YORK INTERNATIONAL ELECTRO-MECHANICAL STARTER SCREEN OVERVIEW This screen displays all information pertaining to an Electro-Mechanical Starter. DISPLAY ONLY Motor Run (LED) Indicates whether the digital output from the controls is commanding the motor to RUN . Motor Current %...
Page 42 - MOD “A” SOLID STATE STARTER SCREEN
YORK INTERNATIONAL 42 FORM 160.55-O1 (604) MOD “A” SOLID STATE STARTER SCREEN OVERVIEW This screen displays all information pertaining to the Mod “A” Solid State Starter. DISPLAY ONLY Motor Run (LED) Indicates whether the digital output from the controls is commanding the motor to RUN. Motor Current...
Page 43 - Access Level Required; Access Level Re quired
FORM 160.55-O1 (604) 43 YORK INTERNATIONAL Allows the user to set a period of time for which the pulldown demand limit will be in effect after the chiller starts. Full Load Amps Access Level Required : SER VICE De Þ ne the maximum amps at which the motor can op- er ate. This value is viewable when l...
Page 44 - MOD “B” SOLID STATE STARTER SCREEN; OPERATOR
YORK INTERNATIONAL 44 FORM 160.55-O1 (604) MOD “B” SOLID STATE STARTER SCREEN 00359VIP FIG. 18 OVERVIEW This screen displays all information pertaining to the Mod “B” Solid State Starter. DISPLAY ONLY Motor Run (LED) Indicates whether the digital output from the controls is commanding the motor to R...
Page 46 - VARIABLE SPEED DRIVE SCREEN; Displays the output voltage measured to the motor.
YORK INTERNATIONAL 46 FORM 160.55-O1 (604) VARIABLE SPEED DRIVE SCREEN OVERVIEW This screen displays information per tain ing to a Vari able Speed Drive (VSD). DISPLAY ONLY Motor Run (LED) Indicates whether the digital output from the controls is commanding the motor to RUN. Motor Current % Full Loa...
Page 48 - VARIABLE SPEED DRIVE DETAILS SCREEN; Service Tech ni cians refer to YORK; DISPLAY ONLY; Displays the DC Bus voltage as reported by the VSD.; DC Inverter Link Current
YORK INTERNATIONAL 48 FORM 160.55-O1 (604) VARIABLE SPEED DRIVE DETAILS SCREEN (STYLE D VSD AND VSD WITH PART NUMBER 371-03789-XXX (503 HP 60 HZ; 410 HP 50 HZ) OVERVIEW This screen displays more detailed information pertain-ing to a Variable Speed Drive (VSD). Flash Memory Card version C.MLM.02.04.x...
Page 49 - Ac cess Level Re quired; Returns to the VSD Screen.
FORM 160.55-O1 (604) 49 YORK INTERNATIONAL Internal Ambient Temperature Displays the ambient temperature inside the VSD cab- i net as reported by the VSD. Converter Heatsink Temperature Displays the heatsink temperature of the con vert er as reported by the VSD. Baseplate Temperature - Phase A, B, C...
Page 52 - ADAPTIVE CAPACITY CONTROL DETAILS SCREEN
YORK INTERNATIONAL 52 FORM 160.55-O1 (604) ADAPTIVE CAPACITY CONTROL DETAILS SCREEN OVERVIEW This screen displays more detailed in for ma tion per- tain ing to a Adaptive Capacity Control (ACC). Requires a login access level of SER- VICE. Service Technicians refer to YORK Service Manual 160.55-M1 fo...
Page 53 - When this function is active, all
FORM 160.55-O1 (604) 53 YORK INTERNATIONAL Pulldown Demand Limit Allows the user to specify the current limit val ue (as a percentage of FLA) to which the chiller will be limited during the speci Þ ed pulldown limit time. This value will override the Motor Current Limit value during this time period...
Page 54 - HARMONIC FILTER DETAILS SCREEN; Indicates whether the Harmonic Filter is op er at ing.
YORK INTERNATIONAL 54 FORM 160.55-O1 (604) HARMONIC FILTER DETAILS SCREEN (STYLE D VSD AND VSD WITH PART NUMBER 371-03789-XXX (503 HP 60 HZ; 410 HP 50 HZ OVERVIEW This screen displays more detailed in for ma tion per- tain ing to the IEEE-519 Harmonic Filter. Flash Memory Card version C.MLM.02.04.xx...
Page 55 - Heatsink Temperature
FORM 160.55-O1 (604) 55 YORK INTERNATIONAL Heatsink Temperature (Labeled “Baseplate Temperatures” on VSD with part number 371-03789-xxx {503HP 60Hz; 419HP 50Hz}). Displays the temperature of the Harmonic Fil ter Heat-sink. Voltage Peak (N-L1, N-L2, N-L3) Displays the 3-phase peak voltages as mea sur...
Page 57 - Displays the 3-phase RMS Voltages across each line.; ed pulldown limit time. This value will
FORM 160.55-O1 (604) 57 YORK INTERNATIONAL Voltage Peak ( N-L1, N-L2, N-L3 ) Displays the 3-phase peak voltages as mea sured by the Harmonic Filter (Neutral to Line). RMS Voltage ( L1-L2, L2-L3, L3-L1 ) Displays the 3-phase RMS Voltages across each line. Voltage Total Harmonic Distortion ( L1, L2, L...
Page 58 - SETPOINTS SCREEN; ning the setup of general system parameters.; Displays the Leaving Chilled Liquid Tem per a ture at which; Current limit Setpoint; BASE
YORK INTERNATIONAL 58 FORM 160.55-O1 (604) SETPOINTS SCREEN OVERVIEW This screen provides a convenient location for pro gram -ming the most common setpoints involved in the chiller control. This screen also serves as a gate way to a subscreen for de Þ ning the setup of general system parameters. DIS...
Page 59 - LEAVING CHILLED LIQUID – LOW TEM-
FORM 160.55-O1 (604) 59 YORK INTERNATIONAL L o c a l L e a v i n g C h i l l e d L i q u i d Te m p e r a t u re - SetpointAccess Level Required : OPERATOR This value allows the user to de Þ ne the Leav ing Chilled Liquid Temperature that is to be maintained by the chill er. It is programmable over ...
Page 60 - SETUP SCREEN
YORK INTERNATIONAL 60 FORM 160.55-O1 (604) SETUP SCREEN OVERVIEW This screen is the top level of the general con Þ g u ra tion pa ram e ters. It allows programming of the time and date, along with speci Þ cations as to how the time will be dis played (12 or 24 hour format). In addition, the chill er...
Page 64 - SCHEDULE SCREEN; exception
YORK INTERNATIONAL 64 FORM 160.55-O1 (604) SCHEDULE SCREEN OVERVIEW The schedule screen contains more pro gram ma ble val ues than a normal display screen. As such, each pro gram -ma ble value is not linked to a speci Þ c but ton. In stead the Select key is used to enable the cur sor ar rows which a...
Page 65 - Schedule
FORM 160.55-O1 (604) 65 YORK INTERNATIONAL tion which enforces the scheduled starting and stop ping of the chiller. Repeat Sunday ScheduleAccess Level Re quired : OP ER A TOR Duplicates the schedule de Þ ned for Sunday for the re main der of the standard weekdays. Reset All Exception DaysAccess Leve...
Page 66 - USER SCREEN
YORK INTERNATIONAL 66 FORM 160.55-O1 (604) USER SCREEN OVERVIEW This screen allows de Þ nition of custom User ID’s and matching passwords. This allows the building ad min -is tra tor to assign custom passwords to those who are authorized to maintain the chiller. Each Custom User value is not linked ...
Page 68 - COMMS SCREEN
YORK INTERNATIONAL 68 FORM 160.55-O1 (604) COMMS SCREEN OVERVIEW (Screen shown from Flash Memory Card version C.MLM.02.02.xxx and later. Screen layout from earlier versions slightly different) This screen allows de Þ nition of the nec es sary com- mu ni ca tions parameters. Refer to PRINTER Sec tion...
Page 69 - ne the number of stop bits at which the panel shall
FORM 160.55-O1 (604) 69 YORK INTERNATIONAL 2 COM 2 Stop Bit(s) De Þ ne the number of stop bits at which the panel shall com mu ni cate through the modem port. NAVIGATION HomeAccess Level Re quired : VIEW Causes an instant return to the Home Screen. SetupAccess Level Re quired : VIEW Return to the Se...
Page 70 - PRINTER SCREEN; This screen allows de; Set the time at which scheduled print logs will begin.
YORK INTERNATIONAL 70 FORM 160.55-O1 (604) PRINTER SCREEN OVERVIEW This screen allows de Þ nition of the necessary com mu - ni ca tions parameters for the printer. Refer to PRINT ER section of this book for details of the Printer con nec tions and setup. DISPLAY ONLY Time Remaining Until Next Print ...
Page 72 - SALES ORDER SCREEN
YORK INTERNATIONAL 72 FORM 160.55-O1 (604) SALES ORDER SCREEN OVERVIEW This screen allows de Þ nition of the sales order pa ram e ters. The Commissioning date is entered by the YORK Service Technician at the time of chiller com mis sion ing. These values should never be changed or en tered by any on...
Page 74 - OPERATIONS SCREEN
YORK INTERNATIONAL 74 FORM 160.55-O1 (604) OPERATIONS SCREEN OVERVIEW This screen allows de Þ nition of general pa ram e ters hav- ing to do with the operation of the chiller. DISPLAY ONLY Chiller Run Time(Flash memory Card version C.MLM.02.01 or later) Displays the amount of time the chiller has be...
Page 76 - HISTORY SCREEN
YORK INTERNATIONAL 76 FORM 160.55-O1 (604) HISTORY SCREEN OVERVIEW This screen allows the user to browse through the faults. In order to get a more thorough reporting of the system conditions at the time of the recorded shut down, move to the subscreen HISTORY DETAILS. The user may use the Select Fa...
Page 77 - VIEW
FORM 160.55-O1 (604) 77 YORK INTERNATIONAL 2 TrendingAccess Level Re quired : VIEW Causes a move to a subscreen allowing the user to view trending data on selected chiller parameters. Custom View (Flash memory Card version C.MLM.02.01 or later)Access Level required: VIEW Causes a move to a sub-scree...
Page 78 - HISTORY DETAILS SCREEN; Causes a return to the History Screen.
YORK INTERNATIONAL 78 FORM 160.55-O1 (604) FIG. 34 HISTORY DETAILS SCREEN OVERVIEW This screen allows the user to see an on-screen printout of all the system parameters at the time of the selected shutdown. Not all screens are shown above. Number of screens required to display all of the data varies...
Page 79 - SECURITY LOG SCREEN; Displays the setpoint that was changed.; Causes an instant return to the History Screen.
FORM 160.55-O1 (604) 79 YORK INTERNATIONAL 2 SECURITY LOG SCREEN OVERVIEW (This screen only available with Flash Memory Card version C.MLM.02.03.xxx and later) This screen displays a listing of the last 75 setpoint chang es. They are listed and numbered in reverse or der in which they were changed, ...
Page 80 - SECURITY LOG DETAILS SCREEN; Displays the setpoint/category that was changed.
YORK INTERNATIONAL 80 FORM 160.55-O1 (604) SECURITY LOG DETAILS SCREEN OVERVIEW (This screen only available with Flash Memory Card version C.MLM.02.03.xxx and later) This screen allows the user to view the details of a logged setpoint change, selected from the list on the Security Log Screen. The da...
Page 81 - Causes an instant return to the Security Log Screen.
FORM 160.55-O1 (604) 81 YORK INTERNATIONAL Security LogAccess Level Required : SERVICE Causes an instant return to the Security Log Screen. View DetailsAccess Level Required : SERVICE Causes a move to a sub-screen containing the details of the setpoint change selected with the Log Entry key. 2
Page 82 - TREND SCREEN
YORK INTERNATIONAL 82 FORM 160.55-O1 (604) TREND SCREEN 00480VIP FIG. 37 OVERVIEW As many as six Operator selected parameters (Data Points) can be plotted in an X/Y graph format. The X-Axis is scaled per the selected Data Collection Interval and dis played in a time of day or elapsed time format, as...
Page 84 - TREND SETUP SCREEN
YORK INTERNATIONAL 84 FORM 160.55-O1 (604) TREND SETUP SCREEN OVERVIEW This screen is used to con Þ gure the trending screen. The parameters to be trended are selected from the Common Slots Screen or Common Slots Master list and entered as Slot Numbers for Data Points 1 through 6. The Y-Axis minimum...
Page 85 - TREND MIN
FORM 160.55-O1 (604) 85 YORK INTERNATIONAL SelectAccess Level Required: OPERATOR This key is used to enter the slot numbers and the min- i mum and maximum Y-Axis values of each parameter to be trended. Pressing this key places a yellow box around Data Point 1 Slot Number. Use the ▲ and ▼ navigation ...
Page 86 - ADVANCED TREND SETUP SCREEN
YORK INTERNATIONAL 86 FORM 160.55-O1 (604) OVERVIEW(Flash Memory Card version C.MLM.02.02.xxx and later) The desired data collection start/stop triggers are set up on this screen. The trend data collection can be set to start or stop based upon the status of up to two selected Trig-gers. The Trigger...
Page 88 - COMMON SLOTS SCREEN
YORK INTERNATIONAL 88 FORM 160.55-O1 (604) COMMON SLOTS SCREEN OVERVIEW This screen displays the slot numbers of the com-monly monitored parameters. The slot numbers for the re main der of the available parameters are listed on the Master Slot Numbers List that fol lows. From these lists, select up ...
Page 89 - CUSTOM VIEW SCREEN; History; Setup; Access Level required:
FORM 160.55-O1 (604) 89 YORK INTERNATIONAL CUSTOM VIEW SCREEN OVERVIEW (Flash memory Card version C.MLM.02.01 or later) This screen allows up to 10 Service Technician se lect ed parameters to be displayed. These parameters are se- lect ed from a list on the Custom View Setup Screen. This allows the ...
Page 90 - CUSTOM VIEW SETUP; Scroll up through list of available parameters.
YORK INTERNATIONAL 90 FORM 160.55-O1 (604) CUSTOM VIEW SETUP OVERVIEW (Flash memory Card version C.MLM.02.01 or later) This screen allows the Service technician to select up to 10 parameters for display on the Custom View Screen. Requires a login ac cess level of SER- VICE. Ser vice Technicians refe...
Page 91 - MASTER SLOT NUMBERS LIST FOR USE WITH TREND FEA TURE
FORM 160.55-O1 (604) 91 YORK INTERNATIONAL MASTER SLOT NUMBERS LIST FOR USE WITH TREND FEA TURE SLOT NO. DESCRIPTION 256 System: Chiller State 257 System: Coastdown Time Remaining 258 System: Prelube Time Remaining 259 System: Are Safety Shut down Contacts Closed 260 System: Are Cy cling Shutdown Co...
Page 94 - DISPLAY MESSAGES; STATUS MESSAGES
YORK INTERNATIONAL 94 FORM 160.55-O1 (604) DISPLAY MESSAGES The Status Bar of the Display contains a Status Line and, beneath it a Details Line. The Status Line con tains a message describing the operating state of the chiller; whether it is stopped, running, starting or shutting down. The Details L...
Page 95 - START INHIBIT MESSAGES; ed
FORM 160.55-O1 (604) 95 YORK INTERNATIONAL “ MOTOR PULLDOWN LIMIT ” The Pulldown Demand Limit Setpoint timer is in ef fect and the Compressor Motor current is > the Pulldown Demand Current Limit Setpoint value. The Pre-rotation vane operation is being inhibited as de scribed in “ MO- TOR – HIGH C...
Page 97 - ce is driven to the full open po si tion. This mes sage; ROUTINE SHUTDOWN MES SAG ES; g u ra tion. It indicates a
FORM 160.55-O1 (604) 97 YORK INTERNATIONAL “ WARNING – REFRIGERANT LEVEL OUT OF RANGE ” (Flash Memory Card version C.MLM.02.02C.xxx and earlier) The output of the Condenser Refrigerant Level Sensor is > 5.1VDC. This is indicative of a Level Sensor fail ure. While this condition exists, the Refrig...
Page 98 - Device Shutdown
YORK INTERNATIONAL 98 FORM 160.55-O1 (604) “ LEAVING CHILLED LIQUID – LOW TEMPERATURE ” The Leaving Chilled Liquid Temperature has de creased to the programmed Shutdown Temperature Setpoint. The chiller will automatically restart when the tem per a ture increases to the programmed Restart Tem per a ...
Page 99 - Refer to “
FORM 160.55-O1 (604) 99 YORK INTERNATIONAL “ STARTER – HIGH SUPPLY LINE VOLTAGE ” (Mod “A” Solid State Starter”) The voltage in any phase of the AC Power Line Volt age supplying the Solid State Starter has increased to the high line voltage threshold for 20 continuous sec onds. The chiller will auto...
Page 100 - gured correctly. Refer; “LCSSS – PHASE LOCKED LOOP”
YORK INTERNATIONAL 100 FORM 160.55-O1 (604) ta neous ly; one via the serial communications link and one via the start re lay TB6-24 in the OptiView Control Cen ter. If they are not re ceived within 5 seconds of one another, a cycling shut down is performed and this mes sage is displayed. This is gen...
Page 103 - – The VSD sys tem re quires
FORM 160.55-O1 (604) 103 YORK INTERNATIONAL • Low Condenser Flow – The VSD sys tem re quires 8 feet of pressure drop across the heat ex chang er to maintain adequate GPM. If the pres sure drop is less than 8 feet, it will be nec es sary to correct the ß ow prob lem or add a boost er pump as is appli...
Page 105 - SAFETY SHUTDOWN MESSAGES
FORM 160.55-O1 (604) 105 YORK INTERNATIONAL in series to achieve a 900VDC capability for the DC link. It is important the voltage is shared equally from the junction of the center or series capacitor con nec tion, to the negative bus and to the positive bus. This center point should be approximately...
Page 107 - switch is placed in
FORM 160.55-O1 (604) 107 YORK INTERNATIONAL “ DISCHARGE – HIGH TEMPERATURE ” The discharge temperature, as sensed by the Dis charge Temperature Thermistor, has increased to > 220.0°F. The chiller can be started after the tem per a ture de creas es to < 220.0°F and the COMPRESSOR switch is plac...
Page 108 - LCSSS Stop
YORK INTERNATIONAL 108 FORM 160.55-O1 (604) MOD “B” SOLID STATE STARTER SAFE TY SHUTDOWN MES SAG ES “LCSSS SHUTDOWN – REQUESTING FAULT DATA...” The Liquid Cooled Solid State Starter Logic/Trigger Board has shut down the chiller but the Control Center has not yet received the cause of the fault from ...
Page 109 - See Phase A mes sage above.
FORM 160.55-O1 (604) 109 YORK INTERNATIONAL “ V S D S H U T D O W N – R E Q U E S T I N G FA U LT DATA ” The VSD has shut down the chiller and the control cen ter has not yet received the cause of the fault from the VSD, via the serial com mu ni ca tions link. The VSD shuts down the chiller by openi...
Page 110 - switch is placed
YORK INTERNATIONAL 110 FORM 160.55-O1 (604) VSD Logic Board is pressed and the COMPRESSOR switch is placed in the Stop-reset (O) position. "VSD – HIGH PHASE C INVERTER BASE-PLATE TEMPERATURE” (VSD part number 371-03789-xxx (503HP 60Hz; 419HP 50Hz (Flash Memory Card version C.MLM.02.04.xxx and la...
Page 112 - SECTION 3; PRINTERS; Printers
YORK INTERNATIONAL 112 FORM 160.55-O1 (604) SECTION 3 PRINTERS FIG. 43 – PRINTERS 23887A OKIDATA MICROLINE 184 23889A WEIGH-TRONIX SEIKO DPU-414 00085VIP Printers
Page 114 - The Control Center requires a busy signal from the; PRINTER CONNECTIONS; • SEIKO; Cable; wire and insert into screw ter mi nal block.; PRINTER SETUP; The selected printer must be con; • WEIGH-TRONIX Printer
YORK INTERNATIONAL 114 FORM 160.55-O1 (604) codes are sent from the Control Center to the print er. For example, Weigh -Tronix printers require a con trol code to select 40 column width. This same code is interpreted by the Okidata printer as an in struc tion to print wide characters. In some in sta...
Page 115 - CONTROL CENTER SETUP
FORM 160.55-O1 (604) 115 YORK INTERNATIONAL Model 1220 - Con Þ gure Menu Baud= 1200 Data Bits = 8 Stop Bits = 1 Hshake = Busy-Line Cols = 32 Invert = No Font = 5 x 8 Mag = None - Custom Menu Auto Seq = No Zero = 0 Pound sign = # _(Underscore) Busy invert = no Online/of ß ine = yes Ext Ch Set = no Pr...
Page 117 - CONTINUED
FORM 160.55-O1 (604) 117 YORK INTERNATIONAL Phase C Current = 190 A Phase A Temperature = 88 ~F Phase B Temperature = 89 ~F Phase C Temperature = 75 ~F [Skip the following section if Motor Type is not VSD] Variable Speed Drive -------------------------------------------------------------------------...
Page 119 - SAMPLE PRINTOUT
FORM 160.55-O1 (604) 119 YORK INTERNATIONAL FIG. 45 – CONTINUED 3 Remote Modem Current Limit = 100 % Pulldown Demand Limit = 100 % Pulldown Demand Time = 0 Min [Skip the following section if Motor Type is not Mod A SSS] Liquid-Cooled Solid State Starter ----------------------------------------------...
Page 124 - SECTION 4; SYSTEM OPERATING PROCEDURES; OIL HEATERS; System Op er at ing Pro ce dures
YORK INTERNATIONAL 124 FORM 160.55-O1 (604) START-UP PROCEDURE Pre-Starting Prior to starting the chiller ob serve the OptiView Con- trol Center. Make sure the Display reads “SYS TEM READY TO START”. To pre-start the chiller use the fol low ing pro ce dure: 1. OIL HEAT ER - The oil heater must be en...
Page 126 - OPERATION SEQUENCE TIMING DIAGRAM
YORK INTERNATIONAL 126 FORM 160.55-O1 (604) "SYSTEM SHUTDOWN" DISPLAY MESSAGE "SYSTEM RUN" "SYSTEM PRELUBE" (OIL PUMP PRE-RUN) "SYSTEM COASTDOWN" (OIL PUMP POST-RUN) 0 25 30 330 1800 (0.4) (0.5) (5.5) (30) START RESTART (IF FIVE SUCCESSIVE RESTARTS HAVE NOT OCCURRED) ...
Page 127 - CHECKING OP ER A TION; Be sure the oil pump is operating while unit is run-; OPERATING LOG SHEET; MINIMUM ENTERING CONDENSING
FORM 160.55-O1 (604) 127 YORK INTERNATIONAL CHECKING OP ER A TION During operation, the fol low ing con di tions should be periodically checked: 1. On start ing, the prerotation vanes should re main closed. 2. Be sure the oil pump is operating while unit is run- ning. 3. Check Oil Pressure display. ...
Page 128 - OPERATING INSPECTIONS
YORK INTERNATIONAL 128 FORM 160.55-O1 (604) System Op er at ing Pro ce dures An optional sta tus printer is available for this purpose; or, Fig. 48 shows a log sheet used by YORK personnel for recording test data on chillers. It is avail able from the factory in pads of 50 sheets each under Form No....
Page 129 - NEED FOR PURGING THE SYSTEM; – TURBOGUARD PURGE UNIT; NORMAL AND SAFE TY SYS TEM SHUTDOWNS
FORM 160.55-O1 (604) 129 YORK INTERNATIONAL 3. Compressor Drive Motor (See motor man u fac tur er’s main te nance and service in struc tion sup plied with unit) a. C l e a n a i r p a s s a g e s a n d w i n d i n g s p e r manufacturer’s in struc tions. b. Meg motor wind ings - See Fig. 65 for de t...
Page 130 - PROLONGED SHUTDOWN
YORK INTERNATIONAL 130 FORM 160.55-O1 (604) System Op er at ing Pro ce dures con dens er wa ter, and cool ing tower fans will stop au to mat i cal ly. The oil pump will continue to run for a pe ri od of 150 sec onds. The oil pump will then stop au to mat i cal ly. Once stopped, the “SYS TEM COASTDOW...
Page 131 - SECTION 5; COMPRESSOR / MOTOR ASSEMBLY
FORM 160.55-O1 (604) 131 YORK INTERNATIONAL Hz immersion type. A separate three phase pow er sup-ply is required except when ordered with a YORK Solid State Starter or Variable Speed Drive. A gravity ß ow oil res er voir is pro vid ed to feed the bearings and gears dur-ing coast down in the event of...
Page 132 - SCHEMATIC DRAWING – (YT) COM PRES SOR LUBRICATION SYSTEM; System Components De scrip tion
YORK INTERNATIONAL 132 FORM 160.55-O1 (604) FIG. 59 – SCHEMATIC DRAWING – (YT) COM PRES SOR LUBRICATION SYSTEM LD03278 System Components De scrip tion
Page 133 - COMPRESSOR LUBRICATION SYSTEM
FORM 160.55-O1 (604) 133 YORK INTERNATIONAL Application #CT’s Furnished in Motor Ter mi nal Box E-M Starter 3 SS Starter 0 VS Drive 0 COMPRESSOR LUBRICATION SYSTEM The chiller lubrication system consists of the oil pump, oil Þ l ter, oil cooler and all interconnecting oil pip ing and passages. (See ...
Page 134 - COOLER
YORK INTERNATIONAL 134 FORM 160.55-O1 (604) System Components De scrip tion Victaulic grooves are welded to the water boxes. These nozzle connections are suit able for Victaulic cou plings, weld ing or ß anges (300 PSI has ß ang es). 1/2" cou pling and separable well are lo cat ed in the enterin...
Page 135 - SECTION 6; OIL RETURN SYSTEM; OIL RETURN; – OIL RETURN SYSTEM
FORM 160.55-O1 (604) 135 YORK INTERNATIONAL SECTION 6 OPERATIONAL MAINTENANCE OIL RETURN SYSTEM 6 OIL RETURN The oil return system con tin u ous ly main tains the prop er oil level in the compressor oil sump. (See Fig. 57.) High pressure condenser gas ß ows con tin u ous ly through the eductor induc...
Page 136 - Operational Maintenance; – ASSEMBLY OF DEHYDRATOR
YORK INTERNATIONAL 136 FORM 160.55-O1 (604) Operational Maintenance LD00470 FIG. 61 – ASSEMBLY OF DEHYDRATOR
Page 137 - CHARGING OIL RESERVOIR WITH OIL; OIL CHARG ING PRO CE DURE; CHARGING THE UNIT WITH OIL
FORM 160.55-O1 (604) 137 YORK INTERNATIONAL FIG. 62 – CHARGING OIL RESERVOIR WITH OIL 25721A OIL CHARG ING VALVE LD00472 at the charg ing valve until after the air is forced out by pumping a few strokes of the oil pump. This Þ lls the lines with oil and pre vents air from being pumped into the sys t...
Page 138 - Troubleshooting; SECTION 7; TABLE 1
YORK INTERNATIONAL 138 FORM 160.55-O1 (604) Troubleshooting SECTION 7 TROUBLE SHOOTING TABLE 1 – CAUSES OF NOR MAL AND SAFE TY SYS TEM SHUT DOWNS IN AC COR DANCE WITH THE CONTROL CENTER DISPLAY CONTROL CENTER DISPLAY GOVERNING CONTROL FUNCTION DAY OF TIME CAUSE OF METHOD OF DESCRIPTION OPERATING POI...
Page 139 - CONTROL CENTER DISPLAY - CONTINUED
FORM 160.55-O1 (604) 139 YORK INTERNATIONAL 7 TABLE 1 – CAUSES OF NOR MAL AND SAFE TY SYS TEM SHUT DOWNS IN AC COR DANCE WITH THE CONTROL CENTER DISPLAY - CONTINUED PROGRAMMED START-UP OF PROBABLE CAUSE SETPOINTS SYSTEM AFTER AND SERVICE BY OPERATOR SHUTDOWN REQUIRED 4°F below chilled water Automati...
Page 141 - OptiView
FORM 160.55-O1 (604) 141 YORK INTERNATIONAL TABLE 1 – CAUSES OF NOR MAL AND SAFE TY SYS TEM SHUT DOWNS IN AC COR DANCE WITH THE CONTROL CENTER DISPLAY - CONTINUED PROGRAMMED START-UP OF PROBABLE CAUSE SETPOINTS SYSTEM AFTER AND SERVICE BY OPERATOR SHUTDOWN REQUIRED Will start at 59 PSID when compres...
Page 142 - TABLE 2; – OPERATING ANALYSIS CHART
YORK INTERNATIONAL 142 FORM 160.55-O1 (604) Troubleshooting TABLE 2 – OPERATING ANALYSIS CHART RESULTS POSSIBLE CAUSE REMEDY 1. SYMP TOM: ABNORMALLY HIGH DIS CHARGE PRESSURE Temperature difference between liquid Air in condenser. Purge unit operates automatically to take refrigerant out and water of...
Page 143 - – OPERATING ANALYSIS CHART - CONTINUED
FORM 160.55-O1 (604) 143 YORK INTERNATIONAL RESULTS POSSIBLE CAUSE REMEDY 6. SYMP TOM: UNUSUALLY HIGH OIL PRESSURE DEVELOPS WHEN OIL PUMP RUNS Unusually high oil pressure is displayed High oil pressure. Transducer defective. Replace low or high oil pressure trans duc er.when the oil pressure display...
Page 144 - Maintenance; SECTION 8; For any required Renewal Parts re fer to Forms listed on page 4.; LEAK TEST ING DUR ING OP ER A TION; are nuts or; CONDUCTING PRES SURE TEST; Build up the system pressure with dry nitrogen to; CHECKING SYSTEM FOR LEAKS
YORK INTERNATIONAL 144 FORM 160.55-O1 (604) Maintenance SECTION 8 MAINTENANCE RENEWAL PARTS For any required Renewal Parts re fer to Forms listed on page 4. LEAK TEST ING DUR ING OP ER A TION The refrigerant side of the sys tem is care ful ly pressure test ed and evac u at ed at the factory. After t...
Page 145 - TABLE 3 –; SYSTEM PRESSURES
FORM 160.55-O1 (604) 145 YORK INTERNATIONAL 8 *GAUGE ABSOLUTE INCHES OF MERCURY (HG) PSIA MILLIMETERS OF MICRONS BELOW ONE STANDARD ATMOSPHERE MERCURY (HG) 0 14.696 760 760,000 212 10.24* 9.629 500 500,000 192 22.05* 3.865 200 200,000 151 25.98* 1.935 100 100,000 124 27.95* .968 50 50,000 101 28.94*...
Page 146 - EVACUATION AND DEHYDRATION OF UNIT; VACUUM TESTING
YORK INTERNATIONAL 146 FORM 160.55-O1 (604) Maintenance EVACUATION AND DEHYDRATION OF UNIT VACUUM TESTING After the pressure test has been completed theVacuum test should be conducted as follows: 1. Connect a high ca pac i tyVacuum pump, with in di - ca tor, to the sys tem charg ing valve as shown i...
Page 147 - SATURATION CURVE; REFRIGERANT CHARGING; t be tween the sys tem charging valve; TABLE 4 –; REFRIGERANT CHARGE
FORM 160.55-O1 (604) 147 YORK INTERNATIONAL FIG. 64 – SATURATION CURVE LD00474 SHELL CODES COOLER COMPRESSOR G0, G1, G3 B 890 900 G0, G1, G3 C 890 900 H1, H3 − 970 975 J1, J3 − 1130 1125 K1, K3 − 1270 1275 G0, G1, G3 E 890 900 H1, H3 − 970 975 J1, J3 − 1130 1125 K1, K3 − 1270 1275 L1, L3 − 1390 1400...
Page 148 - CHECKING THE REFRIGERANT CHARGE DURING UNIT SHUT DOWN; The refrigerant charge is speci; MEGGING THE MOTOR; If readings fall below shaded area, remove ex ter nal
YORK INTERNATIONAL 148 FORM 160.55-O1 (604) CHECKING THE REFRIGERANT CHARGE DURING UNIT SHUT DOWN HANDLING REFRIGERANT FOR DISMANTLING AND REPAIRS The refrigerant charge is speci Þ ed for each chiller mod el (See Table 4). Charge the cor rect amount of re frig er ant and record the level in the cool...
Page 149 - DIAGRAM, MEGGING MOTOR WIND INGS; GENERAL; Cooler; It is dif; Condenser; TUBE FOULING; nds its way into the tubes; CONDENSERS AND COOLERS
FORM 160.55-O1 (604) 149 YORK INTERNATIONAL LD00475 FIG. 65 – DIAGRAM, MEGGING MOTOR WIND INGS GENERAL Maintenance of condenser and cooler shells is im- por tant to provide trouble free op er a tion of the chiller. The wa ter side of the tubes in the shell must be kept clean and free from scale. Pro...
Page 150 - MOTOR STATOR TEMPERATURE AND INSULATION RE SIS TANC ES
YORK INTERNATIONAL 150 FORM 160.55-O1 (604) LD00476 TEMPERATURE – °F MEGOHMS FIG. 66 – MOTOR STATOR TEMPERATURE AND INSULATION RE SIS TANC ES Minimum Insulation Resistance vs. T emperatur e (per IEEE Std 43) Open Motors Maintenance
Page 151 - TUBE CLEAN ING PRO CE DURES; Brush Cleaning of Tube; COMMERCIAL ACID CLEANING
FORM 160.55-O1 (604) 151 YORK INTERNATIONAL TUBE CLEAN ING PRO CE DURES Brush Cleaning of Tube If the tube foul ing con sists of dirt and sludge, it can usu al ly be re moved by means of the brushing process. Drain the water sides of the circuit to be cleaned (cool ing wa ter or chilled water) remov...
Page 152 - COMPRESSOR; COMPRESSOR MOTOR; SECTION 9; Preventive Maintenance
YORK INTERNATIONAL 152 FORM 160.55-O1 (604) COMPRESSOR ELECTRICAL CONTROLS Maintenance for the compressor assembly consists of check ing the operation of the oil return system and chang- ing the dehydrator, checking and changing the oil, check- ing and changing the oil Þ lters, checking the op er a ...
Page 153 - COOLER AND CONDENSER; Every Three Months; OIL RE TURN SYS TEM
FORM 160.55-O1 (604) 153 YORK INTERNATIONAL COOLER AND CONDENSER The major por tion of maintenance on the condenser and cooler will deal with the maintaining of the water side of the con dens er and cooler in a clean condition. The use of un treat ed water in cool ing tow ers, closed water systems, ...
Page 154 - OPTISAVE ENERGY ANALYSER FEATURE; The; OptiSave Energy Analyzer Feature; reveals the
YORK INTERNATIONAL 154 FORM 160.55-O1 (604) SECTION 10 OPTISAVE ENERGY ANALYSER FEATURE The OptiSave Energy Analyzer Feature reveals the advantage of a compressor motor variable speed drive. It calculates the amount of energy that has been saved by having a variable speed drive instead of a constant...
Page 155 - NOTES
York Heating & AIR CONDITIONER
Manual
York DFAA
Manual
York 480
Manual
York D2EB
Manual
York CMR00
Manual
York DH 036
Manual
York DR150
Manual
York 122
Manual
York YZE024 THRU 060
Manual
York YMB-HW
Manual
York YHJF18
Manual
York Y9USC 09 / 12 / 18 B5R
Manual
York CEL20
Manual
York YHJD18 THRU 60
Manual
York D3HH 024
Manual
York 110
Manual
York PV8*DH
Manual
York Y33
Manual
York YWC
Manual