MAXE TM ROTARY SCREW LIQUID CHILLERS OPERATING & MAINTENANCE Supersedes: Form 160.81-O1 (501) Form 160.
FORM 160.
FORM 160.81-O1 (402) IMPORTANT! READ BEFORE PROCEEDING! GENERAL SAFETY GUIDELINES This equipment is a relatively complicated apparatus. During installation, operation, maintenance or service, individuals may be exposed to certain components or conditions including, but not limited to: refrigerants, oils, materials under pressure, rotating components, and both high and low voltage. Each of these items has the potential, if misused or handled improperly, to cause bodily injury or death.
FORM 160.81-O1 (402) CHANGEABILITY OF THIS DOCUMENT In complying with YORK’s policy for continuous product improvement, the information contained in this document is subject to change without notice. While YORK makes no commitment to update or provide current information automatically to the manual owner, that information, if applicable, can be obtained by contacting the nearest YORK Applied Systems Service office.
FORM 160.81-O1 (402) TABLE OF CONTENTS SECTION 1 Description of System and Fundamentals of Operation.............................. 7 SECTION 2 OptiView Control Center ........................................................................... 13 Introduction .............................................................................................. 13 Control Center .......................................................................................... 14 Interface Conventions .................
FORM 160.81-O1 (402) Display Messages ..................................................................................... 74 Status Messages ....................................................................................... 74 Run Messages .......................................................................................... 75 Start Inhibit Messages ............................................................................. 75 Warning Messages .................................................
FORM 160.81-O1 (402) SECTION 1 DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION 1 SOLID STATE STARTER OIL SEPARATOR CONTROL CENTER SIGHT GLASS VARIABLE ORIFICE CONDENSER 00562VIP FIG. 1 – MODEL YR MAXETM CHILLER SYSTEM OPERATION DESCRIPTION (SEE FIG. 2) The YORK Model YR MAXE Chiller is applied to large air conditioning systems, but may be used on other applications.
Description of System and Fundamentals of Operation FORM 160.81-O1 (402) The refrigerant vapor, which is produced by the boiling action in the cooler, flows to the compressor where rotary screw action compresses it increasing its pressure and temperature and discharges it into the oil separator section which removes the oil before the high pressure gas flows into the condenser tube bundle. Water flowing through the condenser tubes absorbs heat from the refrigerant vapor, causing it to condense.
FORM 160.81-O1 (402) CHILLER OPERATION OVERVIEW In the following description, reference is made to procedures that should be performed only by a Service Technician. Instructions for these procedures are in YORK Service Manual 160.81-M1 and require Service access level. The chiller will be permitted to start only if there are no Safety or Cycling shutdown condition in effect and the slide valve position is < 30%. When a Local or Remote start signal is applied, the “Start Sequence Initiated” period begins.
Description of System and Fundamentals of Operation FORM 160.81-O1 (402) nician. Regardless of which method is in control, if the slide Valve position decreases to < the minimum allowed position, a 1 second load pulse is applied every 3 seconds until it meets the minimum allowed position. While the Slide Valve unloading is inhibited, MINIMUM LOAD – LOAD LIMIT” is displayed.
FORM 160.81-O1 (402) tion feature can be enabled by a Service Technician. With this feature enabled and activated, the chiller is permitted to ride through these temporary conditions. The basis of this feature is that the chilled liquid contains a certain amount of heat that cannot be eliminated immediately. It requires a certain amount of time for solidification to occur.
Description of System and Fundamentals of Operation FORM 160.81-O1 (402) In multiple chiller applications it may be possible for the chilled liquid (Water or Brine) from an operating chiller to flow through the Evaporator of a standby chiller. This represents a possible freeze threat to the Condenser of the standby chiller.
FORM 160.81-O1 (402) SECTION 2 OPTIVIEW CONTROL CENTER INTRODUCTION The YORK OptiView Control Center is a microprocessor based control system for R134a screw chillers. It controls the leaving chilled liquid temperature via slide valve controls and has the ability to limit motor current via control of the slide valve. Further, it is compatible with the YORK Solid State Starter (optional), and Electro-Mechanical starter applications.
OptiView Control Center FORM 160.81-O1 (402) CONTROL CENTER FIG. 3 The OptiView Control Center display is highlighted by a full screen graphics display. This display is nested within a standard keypad, and is surrounded by “soft” keys which are redefined based on the currently displayed screen. Eight buttons are available on the right side of the panel, and are primarily used for navigation between the system screens. At the base of the display are 5 additional buttons.
FORM 160.81-O1 (402) INTERFACE CONVENTIONS OVERVIEW The new graphical display on each control panel allows a wide variety of information to be presented to the user. Each screen description in this document will begin with a section entitled Overview which will describe the graphical elements on the screen and give a short summary of the functions available. Each element on the screen will then be categorized into three distinct groups: Display Only, Programmable, and Navigation.
OptiView Control Center If the dialog box begins with SELECT, use the and keys to select the desired value. If the previously defined setpoint is desired, press the X (Cancel) key to dismiss the dialog box. 3. Press the T (Enter) key. If the value is within range, it is accepted and the dialog box disappears. The chiller will begin to operate based on the new programmed value. If out of range, the value will not be accepted and the user is prompted to try again. FORM 160.
FORM 160.81-O1 (402) LANGUAGES The Screens can be displayed in various languages. Language selection is done on the USER Screen. The desired language is selected from those available. Not all languages are available. English is the default language. If a language other than English is being displayed, an English-only speaking person should navigate to the USER Screen using the preceding Navigation chart and select English per the USER Screen instructions in this book.
OptiView Control Center FORM 160.81-O1 (402) HOME SCREEN FIG. 4 OVERVIEW When the chiller system is powered on, the above default display appears. The primary values which must be monitored and controlled are shown on this screen. The Home Screen display depicts a visual representation of the chiller itself. Animation indicates chilled liquid flow. DISPLAY ONLY Chilled Liquid Temperature - Leaving Displays the temperature of the liquid as it leaves the evaporator.
FORM 160.81-O1 (402) higher access levels may perform any actions permitted by lower access levels. The OPERATOR access level is accompanied by a 10-minute timeout. After ten (10) successive minutes without a keypress, the panel will revert to the VIEW access level. This prevents unauthorized changes to the chiller if a user was logged in at a higher access level and failed to logout. Proper procedure requires that after making necessary setpoint adjustments the user return to the Home Screen and logout.
OptiView Control Center FORM 160.81-O1 (402) SYSTEM SCREEN FIG. 5 OVERVIEW This screen gives a general overview of common chiller parameters for both shells. DISPLAY ONLY Discharge/Oil Temperature Displays the temperature of the refrigerant in its gaseous state at discharge of the compressor as it travels to the condenser. Chilled Liquid Temperature - Leaving Displays the temperature of the liquid as it leaves the evaporator.
FORM 160.81-O1 (402) Differential Oil Pressure Displays the pressure differential between the oil pressure transducer (input to the compressor) and the evaporator pressure transducer. The displayed value includes offset pressure derived from auto-zeroing during the START SEQUENCE INITIATED. If either of the transducers used to calculate this differential is out of range, the display field will show XX.X. % Full Load Amps This displays the percentage of full load amps utilized by the system.
OptiView Control Center FORM 160.81-O1 (402) EVAPORATOR SCREEN FIG. 6 OVERVIEW This screen displays a cutaway view of the chiller evaporator. All setpoints relating to the evaporator side of the chiller are maintained on this screen. Animation of the evaporation process indicates whether the chiller is presently in a RUN condition. Animation of the liquid flow indicates chilled liquid flow.
FORM 160.81-O1 (402) tion. The water cooling setpoint range is 38°F to 70°F. The brine cooling setpoint range is 20°F to 70°F and the default is 45°F. When in brine mode and Ice Storage mode is on, it is automatically activated and deactivated by the setpoint that is entered: 20°F to 32°F activates ice storage mode, > 32°F to 70°F deactivates ice storage mode.
OptiView Control Center mode, or PWM signal in Digital Remote mode that changes the setpoint by creating an offset above this base or lowest setting allowed for the Leaving Chilled Liquid Temperature setpoint. This offset may be defined up to 10, 20, 30, or 40°F above this base setpoint (see the Remote Leaving Chilled Liquid Temperature Setpoint Range description above). Additionally, a MicroGateway (in ISN Remote mode) can define the setpoint through a serial data stream.
FORM 160.81-O1 (402) SENSITIVITY SETPOINTS SCREEN 2 00650VIP FIG. 7 OVERVIEW This screen, accessed from the EVAPORATOR Screen, displays a cutaway view of the evaporator. The Leaving Chilled Liquid Temperature control SENSITIVITY setpoints are programmed on this screen. Requires a login access level of SERVICE. Service Technicians refer to YORK Service Manual 160.81-M1 for operation instructions and explanation instructions of all setpoints and displayed values.
OptiView Control Center FORM 160.81-O1 (402) CONDENSER SCREEN FIG. 8 OVERVIEW This screen displays a cutaway view of the chiller condenser. All setpoints relating to the condenser side of the chiller are maintained on this screen. Animation indicates condenser liquid flow. This screen also serves as a gateway to controlling the Refrigerant Level. DISPLAY ONLY Leaving Condenser Liquid Temperature Displays the water temperature as it leaves the condenser.
FORM 160.81-O1 (402) Refrigerant Level Setpoint Displays the setpoint to which the refrigerant level is being controlled. Not displayed if function disabled on OPERATIONS Screen. Ramp-Up Time Remaining Displays the time remaining in the period in which the Refrigerant Level Setpoint is being ramped to a Refrigerant Level target Setpoint. Not displayed if Refrigerant Level function disabled on OPERATIONS Screen or ramp not in effect. Service Technicians refer to YORK Service manual 160.81-M1.
OptiView Control Center FORM 160.81-O1 (402) REFRIGERANT LEVEL CONTROL SCREEN 00651VIP FIG. 9 OVERVIEW This screen displays a cutaway view of the chiller condenser, along with the liquid refrigerant level sensor and the flow control valve. All setpoints relating to the liquid level control are maintained on this screen. Through animation, the variable orifice position is displayed. In addition, the refrigerant flow control valve (variable orifice) can be manually operated.
FORM 160.81-O1 (402) [Refrigerant Level Control] Rate Limit Open Service Technicians refer to YORK Service Manual 160.81-M1. [Refrigerant Level Control] Hold (Manual) This key puts the level control into manual mode and sends a HOLD command to the variable orifice. [Refrigerant Level Control] Rate Limit Close Service Technicians refer to YORK Service Manual 160.81-M1. [Refrigerant Level Control] Auto Returns the Level Control to automatic mode.
OptiView Control Center FORM 160.81-O1 (402) COMPRESSOR SCREEN FIG. 10 OVERVIEW This screen displays a cutaway view of the chiller compressor, revealing the rotary screw, and shows all conditions associated with the compressor. The slide valve positioning is animated and with the proper Access Level it can be manually controlled. Animation of the compressor rotors indicates whether the chiller is presently in a RUN condition.
FORM 160.81-O1 (402) Oil Supply Solenoid (LED) Indicates whether the solenoid is presently energized. Full Load Amps (Electro-Mechanical Starter only) Access Level Required: SERVICE 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 from the Solid State Starter.
OptiView Control Center NAVIGATION Home Access Level Required: VIEW Causes an instant return to the Home Screen. Hot Gas Access Level Required: SERVICE Only available if the system uses Hot Gas Bypass. Moves to the sub-screen allowing for the setup of Hot 32 FORM 160.81-O1 (402) Gas. Service Technicians refer to YORK Service Manual 160.81-M1. Slide Valve Calibration Access Level Required: SERVICE Only available if the chiller is stopped. Moves to the subscreen allowing calibration of the Slide Valve.
FORM 160.
OptiView Control Center FORM 160.81-O1 (402) HOT GAS BYPASS SCREEN 00652VIP FIG. 11 The HOT GAS BYPASS Screen, accessed from the COMPRESSOR Screen, displays a pictorial of the bypass line and solenoid valve location on the chiller. The Hot Gas ON and OFF Setpoints are programmed on this screen and system parameters pertinent to Hot Gas Bypass operation are displayed. An LED illuminates when the Hot Gas Solenoid is ON.
FORM 160.81-O1 (402) NAVIGATION Home Access Level Required: VIEW Causes an instant return to the Home Screen. Compressor Access Level Required: VIEW Return to the Compressor Screen.
OptiView Control Center FORM 160.81-O1 (402) SLIDE VALVE CALIBRATION SCREEN 00557VIP FIG. 12 OVERVIEW This screen displays a cutaway view of the chiller compressor, revealing the rotary screw and slide valve and provides the capability of calibrating the slide valve. Requires a login access level of SERVICE. Service Technicians refer to YORK Service Manual 160.81-M1 for operation instructions and explanation of all programmable setpoints and displayed values.
FORM 160.
OptiView Control Center FORM 160.81-O1 (402) OIL SEPARATOR SCREEN FIG. 13 OVERVIEW This screen displays a close-up of the chiller oil sump and provides all the necessary setpoints for maintaining the oil. DISPLAY ONLY Discharge/Oil Temperature Displays the temperature of the refrigerant in its gaseous state at discharge of the compressor as it travels to the oil separator.
FORM 160.81-O1 (402) the same pressure and their outputs should be equal. However, due to accuracy tolerances in transducer design, differences can exist. Therefore, to compensate for differences between transducers and assure differential pressure sensing accuracy, the Offset Pressure is subtracted from the differential pressure. (Certain operating conditions could require the auto-zeroing to be disabled. This must never be done by anyone other than a qualified service technician.
OptiView Control Center FORM 160.81-O1 (402) ELECTRO-MECHANICAL STARTER SCREEN 00653VIP FIG. 14 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 % Full Load Amps Displays the motor current as a percentage of the Full Load Amps (FLA) value. For the Electro-Mechanical Starter this is the data returned by the CM-2 board.
FORM 160.81-O1 (402) NAVIGATION Home Access Level Required: VIEW Causes an instant return to the Home Screen.
OptiView Control Center FORM 160.81-O1 (402) MOD B SOLID STATE STARTER SCREEN FIG. 15 OVERVIEW This screen displays information pertaining to the Mod B Solid State Starter. 00654VIP kW Hours Displays the cumulative amount of kilowatts used over time. DISPLAY ONLY Starter Model Displays the Solid State Starter model that is applied to the chiller. Starter Models are 7L, 14L, 26L, or 33L. Motor Run (LED) Indicates whether the digital output from the controls is commanding the motor to RUN.
FORM 160.81-O1 (402) current reaches this value, the slide valve will not be permitted to load further. If the motor current rises above this value, the slide valve will unload to reduce the current to this value. Pulldown Demand Limit Access Level Required: OPERATOR Allows the user to specify the current limit value (as a percentage of FLA) to which the chiller will be limited during the specified pulldown limit time. This value will override the Motor Current Limit value during this time period.
OptiView Control Center FORM 160.81-O1 (402) SETPOINTS SCREEN 00230VIP FIG. 16 OVERVIEW This screen provides a convenient location for programming the most common setpoints involved in the chiller control. This screen also serves as a gateway to a sub-screen for defining the setup of general system parameters. DISPLAY ONLY Leaving Chilled Liquid Temperature - Setpoint Displays the present setpoint to which the chiller is operating whether controlled remotely or locally.
FORM 160.81-O1 (402) for 10°F and the operator programmed value is 45°F, then the remote device can set the Leaving Chilled Liquid Temperature setpoint over the range 45.0° - 55.0°F. Local Leaving Chilled Liquid Temperature Setpoint Access Level Required: OPERATOR This value allows the user to define the Leaving Chilled Liquid Temperature that is to be maintained by the chiller. It is programmable over the range of 38.0°F to 70.0°F (water) or 20.0°F to 70.0°F (brine).
OptiView Control Center FORM 160.81-O1 (402) SETUP SCREEN FIG. 17 00426VIP OVERVIEW PROGRAMMABLE This screen is the top level of the general configuration parameters. It allows programming of the time and date, along with specifications as to how the time will be displayed (12 or 24 hour format). In addition, the chiller configuration, as determined by the state of the Microboard Program Jumpers and Program Switches is displayed.
FORM 160.81-O1 (402) Clock (Enabled / Disabled) Access Level Required: OPERATOR Allows the user to enable or disable the real-time clock in order to conserve battery life. The clock will be disabled during manufacturing and must be enabled at system commissioning. In addition, when preparing for prolonged shutdown the clock should once again be disabled. 12/24 Hr Access Level Required: OPERATOR Allows the user to specify the format in which the time will be presented to the user.
OptiView Control Center FORM 160.81-O1 (402) SCHEDULE SCREEN FIG. 18 OVERVIEW The schedule screen contains more programmable values than a normal display screen. As such, each programmable value is not linked to a specific button. Instead the Select key is used to enable the cursor arrows which are used to highlight the day and the start or stop time the user wishes to modify. At this point the user may press the T (Check) key to program the Start / Stop times for that day.
FORM 160.81-O1 (402) Repeat Sunday Schedule Access Level Required: OPERATOR Duplicates the schedule defined for Sunday for the remainder of the standard weekdays. day. Use , , or cursor arrows to place the box around the desired start or stop time for a given day. Allows the user to enable or disable the monitoring function which enforces the scheduled starting and stopping of the chiller. Print Access Level Required: VIEW Generates a Schedule print report.
OptiView Control Center FORM 160.81-O1 (402) USER SCREEN 00343VIP FIG. 19 OVERVIEW This screen allows definition of custom User IDs and matching passwords. This allows the building administrator to assign custom passwords to those who are authorized to maintain the chiller. Each Custom User value is not linked to a specific button. Instead, the Change button is pressed which enables the cursor arrows which are used to highlight the Custom User parameter the user wishes to modify.
FORM 160.81-O1 (402) COMMS SCREEN 2 00470VIP FIG. 20 OVERVIEW This screen allows definition of the necessary communications parameters. Refer to PRINTER Section of this book for details of the Printer connections and setup. Presently, there are no COM 2 communications features available. DISPLAY ONLY None PROGRAMMABLE Chiller ID Access Level Required: OPERATOR Define the numeric chiller ID when used within an ISN network of chillers.
OptiView Control Center FORM 160.81-O1 (402) PRINTER SCREEN 00235VIP FIG. 21 OVERVIEW This screen allows definition of the necessary communications parameters for the printer. Refer to PRINTER section of this book for details of the Printer connections and setup. DISPLAY ONLY Time Remaining Until Next Print Displays the time until the next print log will occur, if the function is enabled. PROGRAMMABLE Log Start Time Access Level Required: OPERATOR Set the time at which scheduled print logs will begin.
FORM 160.81-O1 (402) SALES ORDER SCREEN 2 FIG. 22 OVERVIEW This screen allows definition of the sales order parameters. The Commissioning date is entered by the YORK Service Technician at the time of chiller commissioning. These values should never be changed or entered by anyone other than a qualified Service Technician. Entry instructions are included in the YORK Service Manual 160.81-M1. The remainder of the values are entered at the YORK Factory during the manufacturing of the chiller.
OptiView Control Center FORM 160.81-O1 (402) OPERATIONS SCREEN FIG. 23 OVERVIEW This screen allows definition of general parameters having to do with the operation of the chiller. DISPLAY ONLY Chiller Run Time Displays the amount of time the chiller has been running since the last start signal was received. Value is reset to zero when the chiller shuts down. It remains at zero while shutdown and during Start Sequence Initiated.
FORM 160.81-O1 (402) Hot Gas Bypass (Enabled / Disabled) Access Level Required: SERVICE Enables and Disables the optional Hot Gas Bypass Control Feature. NAVIGATION Home Access Level Required: VIEW Causes an instant return to the Home Screen. Setup Access Level Required: VIEW Return to the Setup Screen.
OptiView Control Center FORM 160.81-O1 (402) HISTORY SCREEN FIG. 24 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 shutdown, move to the sub-screen HISTORY DETAILS. The user may use the Select Fault button to select the history to view. At this point the View Details button is used to jump to a sub-screen containing stored chiller parameters values at the time of the shutdown.
FORM 160.81-O1 (402) Trending Access Level Required: VIEW Causes a move to a sub-screen allowing the user to view trending data on selected chiller parameters. Custom View Access Level Required: VIEW Causes a move to a sub-screen allowing the user to view the Custom Setup Screen. 2 Security Log (Flash Memory Card version C.MLM.05.02.xxx and later) Access Level Required: SERVICE Causes a move to a sub-screen allowing the user to view a record of the last 75 setpoint changes.
OptiView Control Center FORM 160.81-O1 (402) HISTORY DETAILS SCREEN 00655VIP FIG. 25 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. The number of screens required to display all of the data varies according to the type of motor starter and options applied. DISPLAY ONLY History Printout This is the on-screen printout of the system parameters.
FORM 160.81-O1 (402) SECURITY LOG SCREEN 2 00657VIP FIG. 26 OVERVIEW PROGRAMMABLE (This screen only available with Flash Memory Card version C.MLM.05.02.xxx and later) Log Entry Allows the user to select a particular setpoint change for detail viewing. This screen displays a listing of the last 75 setpoint changes. They are listed and numbered in reverse order in which they were changed, with the most recent listed as number 1. Multiple pages are necessary to display all 75 changes.
OptiView Control Center FORM 160.81-O1 (402) SECURITY LOG DETAILS SCREEN 00658VIP FIG. 27 OVERVIEW (This screen only available with Flash Memory Card version C.MLM.05.02.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 date and time the setpoint was changed, the new and old setpoint value and access level and user ID used to make the change are displayed. The data on this screen can be printed.
FORM 160.81-O1 (402) CUSTOM VIEW SCREEN 2 00428VIP FIG. 28 OVERVIEW NAVIGATION This screen allows up to 10 Service Technician selected parameters to be displayed. These parameters are selected from a list on the Custom View Setup Screen. This allows the Service Technician to display parameters pertinent to a particular problem during troubleshooting. At completion of the service call, the display can be cleared or the parameters can be left there for monitoring by operations personnel.
OptiView Control Center FORM 160.81-O1 (402) CUSTOM VIEW SETUP 00241VIP FIG. 29 OVERVIEW This screen allows the Service technician to select up to 10 parameters for display on the Custom View Screen. Requires a login access level of SERVICE. Service Technicians refer to YORK Service Manual 160.80-M1 for operation instructions and explanation of all programmable setpoints and displayed values. DISPLAY ONLY Slot Numbers Lists the available parameters that can be displayed.
FORM 160.
OptiView Control Center FORM 160.81-O1 (402) TREND SCREEN FIG. 30 OVERVIEW As many as six Operator selected parameters can be plotted in an X/Y graph format. The X-Axis is scaled per the selected Data Collection Interval and displayed in a time of day or elapsed time format, as selected with the X-axis toggle key. The Y-Axis is scaled for each parameter per the selected minimum and maximum value for each parameter. Analog parameters are scaled in pressure, temperature, volts, amps, hertz or time.
FORM 160.81-O1 (402) A red screen with the words TREND MAX MUST BE > TREND MIN will appear if the Y-Axis minimum has been programmed to a value that is greater than the Y-Axis maximum for any parameter. If this appears, proceed to the Trend Setup Screen to change the values. PROGRAMMABLE Start Access Level Required: OPERATOR Pressing this key clears the graph, starts a new graph, sets the time of day to the present clock time and begins the trending. This key is only available if trending is stopped.
OptiView Control Center FORM 160.81-O1 (402) TREND SETUP SCREEN FIG. 31 OVERVIEW This screen is used to configure 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 and maximum values for each parameter are entered as Data Point Min and Data Point Max for Data Points 1 through 6.
FORM 160.81-O1 (402) Select Access Level Required: OPERATOR This key is used to enter the slot numbers and the minimum 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 keys to place the box around the value of Data Points 1 through 6 to be changed. With the desired value selected, press the ✓ key. A dialog box is displayed permitting data entry.
OptiView Control Center FORM 160.81-O1 (402) ADVANCED TREND SETUP SCREEN 00474VIP FIG. 32 OVERVIEW The desired data collection start/stop triggers are setup on this screen. The trend data collection can be set to start or stop based upon the status of up to two selected Triggers. The Triggers can consist of digital events or analog parameters compared to thresholds. The Triggers can be used individually or in combination.
FORM 160.81-O1 (402) Primary Operator Access Level Required: OPERATOR Selects the comparator for the Primary Triggers relationship to the Primary Test. If the Primary Trigger is an analog value, selections are: <, <=, =, =>, >. If the Primary Trigger is a digital event, selections are: Equal To, Not Equal To. Primary Test Access Level Required: OPERATOR Selects the value or condition that the Primary Trigger is compared to.
OptiView Control Center FORM 160.81-O1 (402) COMMON SLOTS SCREEN FIG. 33 00244VIP OVERVIEW PROGRAMMABLE This screen displays the slot numbers of the commonly monitored parameters. The slot numbers for the remainder of the available parameters are listed on the Master Slot Numbers List that follows. Page Down Access Level Required: OPERATOR Scroll down in the displayed data. From these lists, select up to six parameters to be trended.
FORM 160.81-O1 (402) MASTER SLOT NUMBERS LIST FOR USE WITH TREND FEATURE SLOT NO.
OptiView Control Center FORM 160.81-O1 (402) SLOT NO. DESCRIPTION SLOT NO.
FORM 160.
OptiView Control Center FORM 160.81-O1 (402) DISPLAY MESSAGES The Status Bar of the Display contains a Status Line and, beneath it a Details Line. The Status Line contains a message describing the operating state of the chiller; whether it is stopped, running, starting or shutting down. The Details Line displays Warning, Cycling, Safety, Start Inhibit and other messages that provide further details of the Status Bar messages. The Status Messages listed below are displayed on the Status Line.
FORM 160.81-O1 (402) “SYSTEM LOCKOUT DELAY” Anytime the chiller shuts down for any reason, it cannot be restarted for 2 minutes. This message is displayed during that time. This is so the refrigerant in the system settles and the evaporator and condenser pressure equalize. “LEAVING CHILLED LIQUID CONTROL” The chiller is running, controlling the Leaving Chilled Liquid to the Leaving Chilled Liquid Temperature Setpoint. There are no system conditions inhibiting this operation.
OptiView Control Center FORM 160.81-O1 (402) is shutdown. As long as this condition exists, the oil pump is turned on. This is generally indicative of a failure of the motor starter, Control Center start circuits or motor current feedback circuits. After motor current is no longer detected, a SYSTEM LOCKOUT DELAY is performed. The chiller can be started after motor current is no longer detected, the SYSTEM LOCKOUT DELAY has completed and the COMPRESSOR switch is placed in the STOP-RESET (O) position.
FORM 160.81-O1 (402) “WARNING – LOW DISCHARGE SUPERHEAT LIMIT ” If the chiller has been running for at least 3 minutes and the Discharge Superheat is < 5.0ºF (R134a), this message is displayed and the slide valve is inhibited from loading. If this condition exists continuously for 10 seconds, the Slide valve is driven with 0.5 second unload pulses, applied every 3.5 seconds until the Discharge Superheat is > 10.
OptiView Control Center FORM 160.81-O1 (402) “CONDENSER – FLOW SWITCH OPEN” The Condenser water flow switch has remained open for 2 continuous seconds while the chiller was running. This check is bypassed for the first 30 seconds of “System Run”. The chiller will automatically restart when the flow switch closes. “MOTOR CONTROLLER – CONTACTS OPEN” The CM-2 Current module (Electro-Mechanical Starter applications) has shutdown the chiller.
FORM 160.81-O1 (402) assumed it is not forthcoming and that message is replaced with this message. The chiller can be started when the Motor Controller LCSS Stop Contacts close. A missing interlock jumper between Starter Logic/ Trigger Board J1-1 and J1-12 will also produce this message. “LCSSS - POWER FAULT” The Liquid Cooled Solid State Starter Logic/Trigger Board has detected that the compressor motor current in one or more phases has decreased to <10% of the FLA for a minimum of 1 line cycle.
OptiView Control Center FORM 160.81-O1 (402) played and a snapshot of the LCSSS parameters and time of power failure are sent to the Control Center. “LCSSS - PHASE LOSS” The Liquid Cooled Solid State Starter Logic/Trigger Board has detected the line-to-line RMS voltage in any phase has decreased to < 30% of the lowest value of the programed voltage range. If the programmed voltage range is “Disabled”, a value of 60VAC is used as the threshold.
FORM 160.81-O1 (402) • Evaporator Refrigerant Temperature sensor (RT7) has been enabled by a Service technicians using instructions in YORK Service Manual 160.81-M1 • Not in Brine cooling mode • Smart Freeze is enabled • Evaporator Temperature sensor (RT7) or Evaporator Saturation Temperature is indicating a temperature of < 32.0 ºF. The chiller can be started after the temperatures are within 3.0ºF of one another and the COMPRESSOR switch is placed in the Stop-reset (O) position.
OptiView Control Center FORM 160.81-O1 (402) vided as a verification of transducer accuracy. Display of this message is generally indicative of a defective transducer or interface. To restart the chiller, press COMPRESSOR switch to STOP/RESET position, then to START position. “CONTROL PANEL – POWER FAILURE” A Control Power failure has occurred. The chiller can be started after the COMPRESSOR switch is placed in the Stop-reset (O) position.
FORM 160.81-O1 (402) any phase exceeded 1.1(1.414 x RMS value of the programmed Start Current) for a minimum of 1 second. The chiller can be started after the COMPRESSOR switch is placed in the Stop-Reset (O) position. “LCSSS - HIGH PHASE (X) HEATSINK TEMPERATURE - RUNNING” The Liquid Cooled Solid State Starter Logic/Trigger Board has detected the temperature of phase A, B or C (designed as X in the message) Silicon Controlled Rectifier (SCR) Modules has exceeded 212°F while the chiller was running.
Printers FORM 160.81-O1 (402) SECTION 3 PRINTERS 23887A OKIDATA MICROLINE 184 WEIGH-TRONIX 23889A 00085VIP SEIKO DPU-414 FIG.
FORM 160.81-O1 (402) PRINTERS A printer can be connected to the Control Center’s Microboard to print the following reports. The screen from which each report can be generated is listed in parenthesis.
Printers FORM 160.81-O1 (402) when connected to the Control Center. However, the print format may not be correct or as desired. Proceed with caution and use the following guidelines if an unlisted printer is selected: 1. All must be capable of RS-232 Serial communications. 2. Primary differences between printers involve the formatting control codes required by the printer. These codes are sent from the Control Center to the printer.
FORM 160.
Printers FORM 160.81-O1 (402) Automatic Data Logging Access Level required: OPERATOR If automatic data logging is desired, a Status Report can be automatically printed at a specified interval beginning at a specified time, using the PRINTER Screen. The interval is programmable over the range of 1 minute to 1440 minutes in 1 minute increments. The first print will occur at the programmed START time and occur at the programmed OUTPUT INTERVAL thereafter.
FORM 160.81-O1 (402) YORK UPDATE CHILLER ID 0 (c) 1997 – 2001 YORK INTERNATIONAL CORPORATION Mon 21 Jun 1999 1:26:51 PM Oil Sump –––––––––––––––––––––––––––––––––––––––––––––––––––––– Oil Pressure = 120.7 Psig Differential Oil Pressure = 41.6 Psid Differential Filter Pressure = 13.1 Psid Oil Supply Solenoid = On SYSTEM RUN LEAVING CHILLED LIQUID CONTROL [List all warnings presently active] Controls C.MLM.05.02.
FORM 160.81-O1 (402) YORK SETPOINTS CHILLER ID 0 (c) 1997 – 2001 YORK INTERNATIONAL CORPORATION Mon 21 Jun 1999 1:27:39 PM Software Versions –––––––––––––––––––––––––––––––––––––––––––––––––––––– Controls = C.MLM.05.02.102 BIOS = C.MLM.00.03 Kernel = 0.18 GUI = 0.32 SIO = 0.22 GPIC = 0.05 SSS [Skip if Motor Type is not Serial SSS] = C.SSS.01.
FORM 160.
Printers FORM 160.
FORM 160.
Printers FORM 160.81-O1 (402) YORK HISTORY 1 CHILLER ID 0 (c) 1997 – 2001 YORK INTERNATIONAL CORPORATION Mon 21 Jun 1999 1:26:51 PM SYSTEM READY TO START LCSSS – LOGIC BOARD POWER SUPPLY [List any warnings that were active at the time of shutdown] Controls C.MLM.05.02.102 Run Time 0 Days 2 Hr Operating Hours Number Of Starts Control Source 59 Min = 298 Hr = 106 = Local Evaporator –––––––––––––––––––––––––––––––––––––––––––––––––––––– Leaving Chilled Active Setpoint = 45.
FORM 160.81-O1 (402) YORK SETPOINT CHANGE LOG CHILLER ID 0 (c) 1997 – 2001 YORK INTERNATIONAL CORPORATION Fri 05 Oct 2001 4:48:04 PM Log Entry 1 Evaporator - Leaving Chilled Local Setpoint –––––––––––––––––––––––––––––––––––––––––––––––––––––– Date = 05 Oct 2001 Time = 4:23:49 PM Access Level = Service User Id = 4268 Old Value = 46.5 ~F New Value = 48.
Printers FORM 160.81-O1 (402) YORK TREND CHILLER ID 163 © 1997 – 2000 YORK INTERNATIONAL CORPORATION MON 09 OCT 2000 3:33:47 PM DATA 1: LEAVING CHILLED LIQUID TEMPERATURE DATA 2: RETURN CHILLED LIQUID TEMPERATURE DATA 3: EVAPORATOR PRESSURE DATA 4: LEAVING CONDENSER LIQUID TEMPERATURE DATA 5: RETURN CONDENSER LIQUID TEMPERATURE DATA 6: CONDENSER PRESSURE TIME DATA 1 DATA 2 DATA 3 DATA 4 DATA 5 DATA 6 3:33:47PM 45.5°F 55.0°F 39.0 PSIG 95.0°F 85.0°F 120.0 PSIG 3:33:48PM 45.5°F 55.0°F 39.0 PSIG 95.
FORM 160.81-O1 (402) SI METRIC CONVERSION The following factors can be used to convert from English to the most common Sl Metric values. MEASUREMENT CAPACITY POWER FLOW RATE LENGTH WEIGHT VELOCITY PRESSURE DROP MULTIPLY THIS ENGLISH VALUE BY TO OBTAIN THIS METRIC VALUE TONS REFRIGERANT EFFECT (ton) KILOWATTS (kW) HORSEPOWER (hp) GALLONS / MINUTE (gpm) FEET (ft) INCHES (in) POUNDS (lb) FEET / SECOND (fps) FEET OF WATER (ft) POUNDS / SQ. INCH (psi) 3.516 NO CHANGE 0.7457 0.0631 304.8 25.4 0.4536 0.
FORM 160.
FORM 160.
P.O. Box 1592, York, Pennsylvania USA 17405-1592 Copyright © by York International Corporation 2002 Form 160.81-O1 (402) Supersedes: Form 160.81-O1 (501) Tele. 800-861-1001 www.york.com Subject to change without notice.
