York 160.87-OM1 Page 71 Operation And Maintenance Manual Download

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Economizer Variable Geometry Diffuser setpoints screen

Figure 24: Economizer VGD setpoints screen

This screen displays information for the Economizer VGD Setpoints information. Also, the

Economizer VGD Setpoints can be changed from this screen.

Table 59: Display only

Field/LED name

Description

Stall Detector Voltage

Displays the Stall Detector output voltage as received by the

Microboard.

High Limit

Displays the voltage. If the voltage is exceeded the VGD will close to

prevent the unit from stalling.

Low Limit

Displays the voltage, that if has dropped below the setpoint, will

cause the VGD to open, allowing more gas through the compressor.

Mach Number

Displays the speed of the refrigerant gas leaving the compressor in

percentage of Mach (the speed of sound).

VGD Closed Limit Switch

Displays the status of the VGD Limit Switch. Displayed as CLOSED

when the switch is closed. This would be when the VGD is in the fully

closed position. Otherwise, displayed as OPEN.

VGD Opening (LED)

Illuminates when a close signal is being applied to the VGD.

VGD Closing (LED)

Illuminates when an open signal is being applied to the VGD.

YK-EP Style B Centrifugal Chiller

Summary of Contents for 160.87-OM1

Page 1: ...7 OM1 920 Supersedes 160 87 OM1 818 Operations and Maintenance Manual Issue Date 2020 09 15 YK EP Style B Centrifugal Chiller R 134a Cooling Only with OptiView Control Center Solid State Starter and Variable Speed Drive ...

Page 2: ...2 YK EP Style B Centrifugal Chiller ...

Page 3: ...as bypass screen 57 Surge protection screen 60 Variable Geometry Diffuser screen 64 Variable Geometry Diffuser setpoints screen 66 Economizer compressor Variable Geometry Diffuser screen 69 Economizer Variable Geometry Diffuser setpoints screen 71 Pre Rotation Vanes calibration screen 74 VSD tuning screen 76 Oil sump screen 79 Economizer oil pump screen 82 Economizer capacity control screen 85 Eco...

Page 4: ...59 Sales order screen 161 Economizer sales order screen 163 Operations screen 164 History screen 166 History details screen 168 Security log screen 169 Security log details screen 171 Custom view screen 173 Custom view setup screen 174 Trend screen 176 Trend setup screen 178 Advanced trend setup screen 181 Common slots screen 184 Display messages 189 Status messages 189 Safety shutdown messages 20...

Page 5: ... operating program 241 Program jumpers Program switches 243 Keypad interface 247 CM 2 board or Style A Solid State Starter interface 247 Configuration Setup 252 Downloading a program from a program card 258 Metric conversion 268 5 YK EP Style B Centrifugal Chiller ...

Page 6: ...6 YK EP Style B Centrifugal Chiller ...

Page 7: ...ected that these individuals possess independent training that will enable them to perform their assigned tasks properly and safely It is essential that prior to performing any task on this equipment this individual shall have read and understood the on product labels this document and any referenced materials This individual shall also be familiar with and comply with all applicable industry and ...

Page 8: ...sibility of rigging lifting and operating service personnel to verify the applicability of these documents to the equipment If there is any question regarding the applicability of these documents rigging lifting and operating service personnel should verify whether the equipment has been modified and if current literature is available from the owner of the equipment prior to performing any work on...

Page 9: ... NM5 Long Term Storage Periodic Checklist and Logs 50 20 CL5 Conditioned based maintenance Traditional chiller maintenance is based upon assumed and generalized conditions In lieu of the traditional maintenance program a Johnson Controls YORK Conditioned Based Maintenance CBM program can be substituted This CBM service plan is built around the specific needs for the chiller operating conditions an...

Page 10: ...equency in 60 Hz ECONOMIZER POWER SUPPLY 60 Hz 5 50 Hz DESIGN LEVEL SPECIAL FEATURES ECONOMIZER MOTOR CODE 60 Hz 50 Hz EF 5EC EG 5ED EH 5EE EJ 5EF EK 5EG EL 5EH EM 5EI EN 5EJ EP 5EK ER 5EL ES 5EM ET 5EN 5EO PRIMARY MOTOR CODE 60 Hz 50 Hz DD 5DD DE 5DE DF 5DF 5DG DH 5DH DJ 5DJ DK 5DK DL 5DL CONDENSER CODE BB CJ BC CK BD CL B5 C6 B6 C7 B7 C8 B8 C9 EVAPORATOR CODE BB CJ BC CK BD CL B5 C6 B6 C7 B7 C8 ...

Page 11: ...operating status temperatures pressures and other information pertinent to operation of the chiller are automatically displayed and read on a graphic display Other displays can be observed by pressing the keys as labeled on the Control Center The chiller with the OptiView Control Center is applied with an Electro Mechanical Starter YORK Solid State Starter optional or Variable Speed Drive optional...

Page 12: ...condensed refrigerant drains from the condenser into the liquid return line where the variable orifice meters the flow of liquid refrigerant to the cooler to complete the refrigerant circuit The major components of a chiller are selected to handle the refrigerant which would be evaporated at full load design conditions However most systems will be called upon to deliver full load capacity for only...

Page 13: ... section diagram Table 1 Legend Callout Description A High pressure vapor B High pressure liquid refrigerant C Low pressure vapor D Low pressure liquid refrigerant E Intermediate pressure vapor F Intermediate pressure liquid refrigerant 13 YK EP Style B Centrifugal Chiller ...

Page 14: ...ssages There are certain screens displayed values programmable setpoints and manual control shown in this manual that are for Service Technician use only They are only displayed when logged in at SERVICE access level or higher The setpoints and parameters displayed on these screens are explained in the OptiView Control Center Service Manual Note These parameters affect chiller operation and should...

Page 15: ... Industrial chiller Exx Used on Microboard 031 02430 001 01 YKEP chiller xx controls revision level 00 01 etc y language package 0 equals English only 1 equals NEMA 2 equals CE 3 equals NEMA CE zz language package revision level 00 01 etc 031 03630 001 Shipped in new production chillers after August 2016 This is an upgraded microboard that operates with the Electro Mechanical Medium Voltage Solid ...

Page 16: ...with a standard numeric keypad provided for entry of system setpoints and limits Table 2 Keypad legend The DECIMAL key provides accurate entry of setpoint values A key has also been provided to allow entry of negative values and AM PM selection during time entry In order to accept changes made to the chiller setpoints the CHECK key is provided as a universal Enter key or Accept symbol In order to ...

Page 17: ...ble controls in the system fall into one of the categories described below Access level In order to program any setpoints on the system the user must first login with an appropriate access level When power is applied to the chiller the system begins with an access level of VIEW This will allow the user to navigate to most screens and observe the values displayed there However the user will not be ...

Page 18: ...fice or oil pump speed Other keys in this category are used to initiate terminate processes such as calibrations or reports Free cursor On screens containing many setpoints a specific SOFT key may not be assigned to each setpoint value A SOFT key will be assigned to enable the cursor arrow keys below the numeric keypad which are used to HIGHLIGHT the desired setpoint field At this point the Enter ...

Page 19: ...iable Speed Drive interface MV VSD Variable Speed Drive VSD screen VSD details screen Adaptive Capacity Control ACC details screen Surge map screen Table screen Harmonic filter details screen Motor lubrication screen Motor details screen Motor setpoints screen Setpoints screen Setup screen Schedule screen User screen Comms screen Printer screen Sales order screen Operations screen Diagnostics refe...

Page 20: ... Custom view screen Custom view setup screen Trend screen Trend setup screen Advanced trend setup screen Common slots screen YK EP Style B Centrifugal Chiller 20 ...

Page 21: ...nser liquid temperature 8 0 133 5 F 13 3 56 3 C Evaporator refrigerant temperature optional 0 0 126 1 F 17 7 52 3 C Discharge temperature 31 8 226 3 F 0 1 107 9 C Oil temperature 31 8 226 3 F 0 1 107 9 C Condenser pressure 0 0 315 0 PSIG 0 0 2172 4 KPAG Condenser temperature 98 7 160 1 F 72 6 71 7 C Evaporator pressure 5 5 77 4 PSIG 37 9 533 7 KPAG Evaporator temperature 44 9 64 7 F 42 7 18 1 C Oi...

Page 22: ...rature of the liquid as it enters the evaporator Condenser Liquid Temperature Leaving Displays the temperature of the liquid as it leaves the condenser Condenser Liquid Temperature Entering Displays the temperature of the liquid as it enters the condenser Primary Motor Full Load Amps This displays the percentage of Full Load Amps utilized by the primary motor Primary Motor Operating Hours Displays...

Page 23: ... a SERVICE access level has been provided Only qualified service personnel utilize this access level This level provides advanced control over many of the chiller functions and allows calibration of many of the chiller controls The access levels are listed above in hierarchical order beginning with the lowest level and proceeding to the highest level Users logged in under higher access levels may ...

Page 24: ...re Shutdown is displayed on the System Status Line When the Vane Motor Switch VMS closes indicating the vanes have fully closed or 3 5 minutes have elapsed whichever occurs first the Run signal is removed from the compressor motor starter and a System Coastdown is performed While the vanes are closing if a Safety Stop is initiated with the Safety Stop Switch or any fault other than Leaving Chilled...

Page 25: ...em the Adaptive Capacity Control and Harmonic Filter information is controlled under this screen Setpoints This screen provides a single location to program the most common system setpoints It is also the gateway to many of the general system setup parameters such as Date Time Display Units Scheduling Printer Setup etc History This screen provides access to a snapshot of system data at each of the...

Page 26: ...plays the temperature of the liquid as it enters the evaporator Chilled Liquid Temperature Setpoint Displays the active temperature setpoint to which the chiller is controlling the evaporator liquid This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link Gateway interface in ISN mode or a locally programmed valu...

Page 27: ...ducer output of oil filter and the low side oil pressure transducer compressor housing The displayed value includes offset pressure derived from auto zeroing during the System Prelube If either of the transducers used to calculate this differential is out of range the display field will show XX X Table 8 Programmable Button Access level Description None Table 9 Navigation Button Access level Descr...

Page 28: ...ized by the primary motor Primary Current Limit Displays the primary active motor current limit in percentage of Full Load Amps Primary PRV Position Displays how open the PRV vanes are in percentage from 100 fully open to 0 fully closed Primary Motor Run LED Illuminates when the Primary Compressor is currently running Oil Sump Temperature Displays the temperature of the oil in the sump Primary Oil...

Page 29: ...e bundle Entering Condenser Liquid Temperature Displays the temperature of the liquid as it enters the condenser Condenser Pressure Displays the pressure of the refrigerant within the condenser Condenser Saturation Temperature Displays the saturation temperature of the refrigerant within the Condenser calculated from the Condenser Pressure Condenser Drop Leg Displays the subcooled temperature at t...

Page 30: ...lled Liquid Temperature Displays the temperature of the liquid as it enters the evaporator Leaving Chilled Liquid Temperature Displays the temperature of the liquid as it leaves the evaporator Evaporator Refrigerant Temperature Displays the temperature of the refrigerant in the evaporator if the sensor is present Evaporator Small Temperature Difference Displays the difference between the Leaving C...

Page 31: ...ET adjacent to this value Table 14 Programmable Button Access level Description Smart Freeze Off On Service This value is only available if the chiller is not in Brine mode It allows the user to enable the Smart Freeze Point Operation which allows the chiller to run closer to the freeze point without shutting down Brine Low Evaporator Cutout Service This value is only available in Brine mode It al...

Page 32: ...eze enabled or 6 F brine Anytime the Leaving Chilled Liquid Temperature Setpoint is increased the setpoint is increased at a rate of 0 2 F per second to allow the chiller time to unload Leaving Chilled Liquid Temperature Cycling Offset Restart Operator This value allows the user to specify the Leaving Chilled Liquid Temperature at which the chiller will restart after a shutdown on a LEAVING CHILLE...

Page 33: ...Table 15 Navigation Button Access level Description Home View Returns user to HOME Screen 33 YK EP Style B Centrifugal Chiller ...

Page 34: ...ers the condenser Condenser Saturation Temperature Displays the saturation temperature in the condenser Condenser Small Temperature Difference Displays the difference between the Condenser Refrigerant temperature and the Leaving Condenser Liquid temperature The Condenser Refrigerant temperature will be represented by the Condenser Saturation temperature Condenser Pressure Displays the refrigerant ...

Page 35: ... operating Condenser Refrigerant Level Displays the present position of the refrigerant level if this function is enabled Active Level Setpoint Displays the setpoint to which the refrigerant level is being controlled Level Control Valve Command Displays the level control valve signal 0 to 100 Table 17 Programmable Button Access level Description High Pressure Warning Threshold Service This value a...

Page 36: ...witch senses flow is present A complete explanation of the Head Pressure Control feature are explained in the OptiView Control Center Service Manual Note Requires a login access level of SERVICE Table 19 Display only fields Field LED name Description Entering Condenser Liquid Temperature Displays the temperature of the liquid as it enters the standard condenser tube bundle Leaving Condenser Liquid...

Page 37: ...ill drive to while the chiller is off Control Valve Output Settings Type 0 10v or 4 to 20mA default 0 10v Sets the output signal to the Control Valve to be in the form of either 0 to 10VDC or 4 to 20mA Control Valve Output Settings Direction Direct or Reverse Allows the output signal to the Control Valve to be set to direct or reverse acting When set to direct the voltage or current signal to the ...

Page 38: ...ain of the Head Pressure Control 0 00 to 5 00 default 2 00 Use the CHANGE SETPOINTS key as described above to select enter this setpoint Head Pressure Control D Sets the Derivative Gain of the Head Pressure Control 0 00 to 5 00 default 0 00 Use the CHANGE SETPOINTS key as described above to select enter this setpoint Table 21 Navigation Button Description Home Returns user to HOME Screen Condenser...

Page 39: ...r Effectiveness The Subcooler Effectiveness is evaluated with the following calculation and compared to a high and low limit Cond Sat Temp Drop Leg Ref Temp Cond Sat Temp Entering Cond Liq Temp This value is typically near 0 8 at design conditions Level Control State Indicates one of the following states the level control routine is in Manual Inactive Startup Hold Setpoint Ramp PID Control Hold St...

Page 40: ... After the chiller has been running for the level control startup delay time if the refrigerant level is less than the Level Setpoint a linearly increasing ramp is applied to the Level Setpoint This ramp allows the level to go from the present level to the programmed Level Setpoint over a period of time programmed as the Ramp Up Time This setpoint can only be changed with ADMIN level access 1 to 5...

Page 41: ...r the Subcooler Effectiveness Warning Adjustable 0 to 100 default 50 Low Threshold Admin Sets the low limit for the Subcooler Effectiveness Warning Adjustable 0 to 100 default 50 KP Admin Sets the Proportional value of the PID control loop Adjustable 0 1 to 15 default 1 0 Ti Admin Sets the Integral value of the PID control loop Adjustable 0 1 to 200 default 100 Td Admin Sets the Derivative value o...

Page 42: ... SERVICE Qualified service technicians should refer to the OptiView Control Center Service for operation instructions and explanations of all programmable setpoints and displayed values Table 26 Display only fields Field LED name Access level Description Oil Sump Temperature Displays the temperature of the oil in the sump Discharge Temperature Displays the temperature of the refrigerant in its gas...

Page 43: ...o compensate for differences between transducers and assure differential pressure sensing accuracy the offset pressure is subtracted algebraically from the differential pressure The offset pressure calculation will not be performed if either transducer is out of range The offset value will be taken as 0 PSI in this instance Oil Pump Drive Command Frequency Displays the electrical frequency of the ...

Page 44: ...Close Manual Service This key puts the vane control into manual mode and sends a CLOSE command to the vanes Pre Rotation Vanes Hold Manual Service This key puts the vane control into manual mode and sends a HOLD command to the vanes Pre Rotation Vanes Auto Service This key returns the vane control to automatic mode Fault Acknowledge This option allows clearing of the High Speed Thrust Bearing Limi...

Page 45: ...points and manual control of the Hot Gas Bypass valve Only displayed if Hot Gas Bypass feature has been enabled on the OPERATIONS Screen Surge View Moves to the subscreen that allows viewing and programming of the Surge Protection feature VGD Service Moves to the subscreen that allows access to the Variable Geometry Device Economizer Compressor Service Moves to the subscreen that shows the Economi...

Page 46: ...ol of the Compressor Motor Variable Speed Drive Table 29 Display only Field LED name Access level Description Oil Pump Drive Command Frequency Displays the command frequency of the Oil Pump Drive The frequency will go up or down to match the pump motor output to the required oil pressure Discharge Temperature Displays the temperature of the refrigerant in its gaseous state at discharge of the comp...

Page 47: ...between transducersand assure differential pressure sensing accuracy the offset pressure is subtracted algebraically from the differential pressure The offset pressure calculation will not be performed if either transducer is out of range The offset value will be taken as 0 PSI in this instance Pre Rotation Vanes Closing LED Displays when the Economizer PRV is closing Vane Motor Switch LED Indicat...

Page 48: ...e technician to jog the economizer compressor to check rotation Table 31 Navigation Button Access Level Description Home View Returns user to HOME Screen Compressor Service Navigates to the COMPRESSOR Screen Economizer Service Navigates to the ECONOMIZER Screen VGD Service Moves to the subscreen for the VGD Capacity Control Service Navigates to CAPACITY CONTROL Screen Motor Service Moves to a subs...

Page 49: ...us for the Anti Recycle timer It will show enabled or disabled Coastdown Time Displays the amount of time the economizer compressor spent in coastdown Motor Auto Lube Type Set to P203 QLS401 Sleeve or None as appropriate Motor Heater Set to Enable if a motor heater is present else Disabled Number of starts Admin Displays the number of starts that the economizer compressor has accumulated Operating...

Page 50: ...s level Description Home Returns user to HOME Screen Economizer Compressor Returns user to ECONOMIZER COMPRESSOR Screen Change Settings Service This button allows selection of the various settings YK EP Style B Centrifugal Chiller 50 ...

Page 51: ...level of SERVICE Table 34 Display Field LED name Description Pre Rotation Vanes Opening LED Indicates the vanes are opening Pre Rotation Vanes Closing LED Indicates the vanes are closing PRV Feedback Voltage Displays the feedback voltage on the PRV motor PRV Calibration State Displays the state of the PRV calibration as follows Off Open Check Open Close Check Close Check Span Pass Fail PRV Calibra...

Page 52: ...s the Pre Rotation Vanes actuator mode as Manual or Automatic Open Pressing this button will open the Pre Rotation Vanes Close Pressing this button will close the Pre Rotation Vanes Hold Pressing this button will hold the Pre Rotation Vanes in a set position Auto Pressing this button will set the economizer Pre Rotation Vane actuator command to Auto This button will be enabled only when the Econom...

Page 53: ...e Superheat Displays the discharge superheat of the economizer in degrees in tenths Economizer Pressure Displays the economizer pressure of the economizer Saturation Temperature Displays the saturation temperature in tenths of the economizer Refrigerant Level Displays the level of the refrigerant in the economizer in percentage Level Control State Displays the level control state as follows Manual...

Page 54: ... for manual control Open Service Pressing this button will set the Economizer Level Control Valve Mode to Manual if it had been in Auto It will increase the current Economizer Level Control Valve Command by an amount equal to the Manual Increment with a maximum of 100 0 Close Service Pressing this button will set the Economizer Level Control Valve Mode to Manual if it had been in Auto It will decr...

Page 55: ... Bearing Proximity Reference Position Displays the presently defined offset reference posi tion This value is defined at the conclusion of a cali bration sequence Oil Pressure Displays the pressure differential between the high side oil pressure transducer compressor bearing input and the low side oil pressure transducer oil sump The displayed value includes offset pressure derived from auto zeroi...

Page 56: ... this key to cancel calibration Accept Calibration Press this key to accept calibration Fault Acknowledge This option is only displayed if a fault is present Allows clearing of High Speed Thrust Bearing related shutdowns Table 42 Navigation Button Access level Description Home View Returns user to HOME Screen Compressor View Returns user to COMPRESSOR Screen YK EP Style B Centrifugal Chiller 56 ...

Page 57: ...able 43 Display only Field LED name Description Valve Position Displays the present position of the Hot Gas Valve as a value between 0 closed to 100 full open By animation the valve is shown in its relative position The actual position of the valve does not match the percentage displayed in the Valve Position Box The actual levels and their relative values can be read from Table 44 Pre Rotation Va...

Page 58: ...e control Minimum Load VSD Override or VGD Override is displayed as appropriate Refer to the OptiView Control Center Service Manual for details of these messages Table 44 Valve position Actual position Valve position 0 to 19 0 fully closed 20 to 39 25 open 40 to 59 50 open 60 to 79 75 open greater than 79 100 fully open Table 45 Programmable Button Access level Description Close Percentage Service...

Page 59: ...ot Gas Bypass Control Close Manual Puts the Hot Gas Bypass valve in manual control mode Each time this key is pressed the valve position is decreased by 5 Hot Gas Bypass Control Auto Returns the Hot Gas Bypass Control to automatic mode Table 46 Navigation Button Access Level Description Home View Returns user to HOME Screen Compressor View Returns user to COMPRESSOR Screen 59 YK EP Style B Centrif...

Page 60: ...Refer to Hot gas bypass screen The detection and counting of surges in this feature is completely independent of the surge detection counting performed by the Variable Speed Drive VSD Adaptive Capacity Control ACC Surge Detection The ACC Surge Detection creates a surge map used to control the speed of the drive The ACC Surge Detection is performed in the Microboard Table 47 Display only Field LED ...

Page 61: ...Surge Window Time The count is cleared when the chiller shuts down Extended Run Time Remaining Displays the time remaining in the 10 minute Extended Run period During this period the Pre Rotation Vanes are driven closed and WARNING SURGE PROTECTION EXCESS SURGE LIMIT is displayed Refer to operation under Count Limit in Table 48 Table 48 Programmable Button Access level Description Count Limit Oper...

Page 62: ...rge warning messages are displayed Extended Run Enabled Disabled Operator Allows the user to select the surge correction avoidance Extended Run mode This will be implemented when an Excess Surge situation is detected as follows Anytime the Surge Window Count exceeds the Count Limit the Pre Rotation Vanes are driven closed for the next 10 minutes While this load inhibit is in effect WARNING SURGE P...

Page 63: ...Table 48 If the Shutdown Setpoint is Disabled and the Extended Run Setpoint is Enabled the Pre Rotation Vanes are driven closed for 10 minutes and WARNING SURGE PROTECTION EXCESS SURGE LIMIT is displayed When the 10 minutes have elapsed if the Surge Window Count is less than or equal to the Count Limit this message and load inhibit are automatically cleared Alternating with this message is WARNING...

Page 64: ...d to 100 fully open Displayed as XXX until calibration procedure is performed by Service Technician VGD Closed Limit Switch Displays the status of the VGD Limit Switch Displayed as CLOSED when the switch is closed This would be when the VGD is in the fully closed position Otherwise it is displayed as OPEN Diffuser Gap Close LED Illuminates when a close signal is being applied to the VGD Diffuser G...

Page 65: ... Reacting Probing Surge Reacting Surge Waiting Hot Gas Override Time Remaining While the VGD is in the Stall Waiting State displays the time remaining in the Probe Wait Time interval value programmed as the Probe Wait Time setpoint Diffuser Gap Control Mode Indicates whether the VGD is under manual or automatic control Table 51 Programmable Button Access level Description VGD Open Manual Service T...

Page 66: ...n Vanes over the range of 0 fully closed to 100 fully open Displayed as XXX until calibration procedure is performed by Service Technician VGD Closed Limit Switch Displays the status of the VGD Limit Switch Displayed as CLOSED when the switch is closed This would be when the VGD is in the fully closed position Otherwise the switch is displayed as open Diffuser Gap Close LED Illuminates when a clos...

Page 67: ... Hot Gas Override Time Remaining While the VGD is in the Stall Waiting State displays the time remaining in the Probe Wait Time interval value programmed as the Probe Wait Time setpoint Table 54 Programmable Button Access level Description Surge React 1 to 30 seconds default 5 Specifies the length of the close pulse applied to the VGD in response to a surge PRV Offset 0 to 5 default 3 If the VGD c...

Page 68: ... entered which is less than 0 1VDC below the High Limit Setpoint the High Limit Setpoint is adjusted so that it is 0 1VDC above the newly entered Low Limit value VGD Count Admin Allows the user to clear the VGD Cycle Count Extreme Stall Duration 10 to 20 minutes default 10 Specifies the maximum allowed time an extreme stall condition can exist before the VGD operation is disabled and driven to the...

Page 69: ...lowing more gas through the compressor Mach Number Displays the speed of the refrigerant gas leaving the compressor in percentage of Mach the speed of sound VGD Closed Limit Switch Displays the status of the VGD Limit Switch Displayed as CLOSED when the switch is closed This would be when the VGD is in the fully closed position Otherwise displayed as OPEN VGD Opening LED Illuminates when a close s...

Page 70: ...e Table 57 Programmable Button Access level Description VGD Actuator Service Displays the current state of the VGD Actuator It will show either Auto or Manual Open with LED Service Pressing this button will send a command to open the VGD The LED will indicate on Close with LED Service Pressing this button will send a command to close the VGD The LED will indicate on Hold Service Pressing this butt...

Page 71: ...ent the unit from stalling Low Limit Displays the voltage that if has dropped below the setpoint will cause the VGD to open allowing more gas through the compressor Mach Number Displays the speed of the refrigerant gas leaving the compressor in percentage of Mach the speed of sound VGD Closed Limit Switch Displays the status of the VGD Limit Switch Displayed as CLOSED when the switch is closed Thi...

Page 72: ...e 10 to 20 minutes default 10 minutes The Extreme Duration override occurs when the Variable Geometry Diffuser VGD stall voltage is two times higher than the high limit for longer than 10 minutes At this time the VGD will be opened and a warning message displayed The VGD will remain open until the warning is manually cleared by the operator Once cleared the VGD Control will return to normal operat...

Page 73: ...s the 10 second pulse over and over again until the stall voltage is higher than the high limit High Limit Service 0 35 to 1 20V Default 0 8V If stall voltage is higher than high limit of 0 8V the VGD control enters the stall react state that closes the VGD It will keep closing the VGD until stall volt is lower than the low limit 0 5V Low Limit Service 0 30 to 0 79V Default 0 50V When stall voltag...

Page 74: ...vanes are opening Pre Rotation Vanes Closing LED Indicates the vanes are closing Calibration in Progress LED Indicates the calibration sequence is in progress Calibration Messages These are text messages which step the user through the calibration process and indicate its success or failure Pre Rotation Vanes Voltage Displays the Pre Rotation Vanes position potentiometer feedback voltage Table 63 ...

Page 75: ...Table 64 Navigation Button Access level Description Home View Returns user to HOME Screen Compressor View Returns user to COMPRESSOR Screen 75 YK EP Style B Centrifugal Chiller ...

Page 76: ...otation Vanes Position Displays the position of the Pre Rotation Vanes in percent over the range of 0 full close to 100 full open Delta P P Displays the chiller head pressure calculated as condenser pressure evaporator pressure evaporator pressure Temperature Differential LCHLT Setpoint Displays the difference between the Leaving Chilled Liquid Temperature and the Leaving Chilled Liquid Temperatur...

Page 77: ...uency 50 or 60 Hz Raise Service Puts the drive frequency control into manual mode Each time it is pressed it increases the Command Frequency to the drive by the amount defined by the MANUAL INCREMENT key It will not raise the value above the maximum allowed 50 or 60 Hz Lower Service Puts the drive frequency control into manual mode Each time it is pressed it lowers the Command Frequency to the dri...

Page 78: ...Table 67 Navigation Button Access level Description Home View Returns user to HOME Screen Compressor View Returns user to COMPRESSOR Screen YK EP Style B Centrifugal Chiller 78 ...

Page 79: ...es offset pressure derived from auto zeroing during the System Prelube Refer to explanation of auto zeroing in Primary compressor screen If either of the transducers used to calculate this differential is out of range the display field will show XX X Oil Sump Temperature Displays the temperature of the oil in the sump Oil Saturated Condenser Temperature Differential Variable Speed Oil Pump Only Di...

Page 80: ...Variable Speed Oil Pump Only The Variable Speed Oil Pump VSOP if installed operates to control to a defined Oil Pressure value During prelube and for the first 15 seconds after prelube this setpoint value is 45 0 PSID During this time this field will display the target value After 15 seconds this value will display the user programmed setpoint Oil Pressure Variable Speed Oil Pump Control Mode Vari...

Page 81: ...ed Oil Pump Speed Control Set Service This key allows the user to specify automatic or a fixed manual speed at which the VSOP will run Raise Service This key puts the VSOP control into manual mode and increments the present speed command by 0 5 Hz Lower Service This key puts the VSOP control into manual mode and decrements the present speed command by 0 5 Hz Set Service This key allows the user to...

Page 82: ...er and the low side oil pressure transducer compressor housing The displayed value includes offset pressure derived from auto zeroing during the System Prelube refer to explanation of auto zeroing in Primary compressor screen If either of the transducers used to calculate this differential is out of range the display field will show XX X Oil Sump Temperature Displays the temperature of the oil in ...

Page 83: ...time this field will display the target value After 15 seconds this value will display the user programmed setpoint Oil Pressure Oil Pump Drive Command Frequency Variable Speed Oil Pump Only Displays the actual speed command being sent to the VSOP This value could be the result of automatic control based on the Oil Pressure Setpoint or the result of a manual speed command Manual Oil Pump Operation...

Page 84: ...andby Lube Enabled Disabled Service Allows the user to enable or disable the standby lube operation When enabled this function causes the oil pump to operate for a period of two 2 minutes at 24 hour intervals from when the oil pump was last run for at least 2 minutes Pressure Setpoint Service Variable Speed Oil Pump Only The Variable Speed Oil Pump VSOP operates to control to a defined Oil Pressur...

Page 85: ...rt to surge Efficiency of the economizer will be the highest at this point Delta T Displays the temperature that is the result of subtracting the Economizer Saturation Temperature minus the Economizer Saturation Temperature Setpoint Motor Current FLA Displays the percent of full load amps of the economizer compressor motor Override Threshold If Motor Current full load amps is higher than the Overr...

Page 86: ... to indicate Pre Rotation Vanes are active PRV Command Displays the position the Pre Rotation Vanes are commanded to open PRV Feedback Displays the feedback data used to calculate the position of the Pre Rotation Vanes Control Mode Shows what state the economizer Pre Rotation Vane state It may display Manual Auto or Inactive depending on what is happening with the economizer Table 75 Programmable ...

Page 87: ...ll open a dialog box where the user can manually enter a command value for the economizer Pre Rotation Vanes Once a value has been entered and the Enter key pressed the Econ PRV Override Enable will be set to Manual if it had been in Auto and the Econ Pre Rotation Vanes Override Position will be set to the entered value 0 to 100 Default 0 Table 76 Navigation Button Access level Description Home Vi...

Page 88: ...or wishes the economizer to start operating Refrigerant Flow Criteria at High Head Service Range 100 to 50000 CFM Default 6000 CFM Displays the refrigerant flow in CFM that is where the economizer will activate in the high head condition Low Head for Refrigerant Flow Service Range 5 to 150 PSID Default 30 PSID This displays the low head setpoints at which the economizer will activate These points ...

Page 89: ...ll Capacity PRV Position Service Range 80 to 100 Default 95 Displays the position of the main compressor PRV when it is considered to be at Full Capacity Econ Exit Boost Econ Temp Offset Service Range 0 to 5 F Default 1 F Displays the offset of the temperature that controls when the chiller exits the boost mode to go into the economizer mode Econ PRV Start Position Service Range 0 to 30 Default 2 ...

Page 90: ...ation Vanes Table 79 Programmable Button Access level Description Change Setpoints Service or Admin Pressing this button will display a green box around the first programmable item on the screen The arrow keys can be used to move the box around to select the item to program Default Setpoints Service Pressing this button will display a dialog box telling the user to Press Enter to set all Econ Capa...

Page 91: ... field service use Table 81 Display only Field LED name Description Economizer anti surge data Displays the minimum temperature that the economizer can go to before the economizer compressor will start to surge Efficiency of the economizer will be the highest at this point Speed of Sound Isentropic Head Omega Surge Mach Mach Number Anti Surge Minimum Econ Temperature Active Anti Surge Minimum Econ...

Page 92: ...0 Default 1 0 Changing this parameter alters the anti surge surface shape Min Temperature Offset Range 5 0 to 20 0 Default 2 0 Changing this parameter increases or decreases the anti surge surface from the chiller surge conditions Table 83 Navigation Button Access level Description Home View Returns the user to the HOME Screen Capacity Control Service Allows the user to navigate to the Economizer ...

Page 93: ...el Displays the present position of the liquid level The refrigerant level is animated in the cutaway view of the condenser The actual level of the refrigerant in the tank does not match the percentage displayed in the Level Control Valve Command box The actual levels versus the displayed percentages are listed in Table 85 Active Level Setpoint Service Displays the setpoint to which the refrigeran...

Page 94: ...nt a linearly increasing ramp is applied to the Level Setpoint This ramp allows the level to go from the present level to the programmed Level Setpoint over a period of time programmed as the Ramp Up Time 1 to 5 minutes default 1 min High Threshold Service Sets the high limit for the Subcooler Effectiveness Warning Adjustable 0 to 100 default 50 Low Threshold Service Sets the low limit for the Sub...

Page 95: ... pressed the Condenser Level Control Valve Mode will be set to Manual if it had been in Auto and the Condenser Level Control Valve Command will be set to the entered value Auto Service This button is only displayed when in Manual Level Control Pressing this button returns the control to the PID program Change Setpoints This button is only displayed when signed in at Service Level Pressing this but...

Page 96: ...s a of FLA that the compressor will be allowed to operate Input Power Displays the kilowatts measured by the Solid State Starter KW Hours Displays the cumulative amount of kilowatts used over time Starter Model Displays the Solid State Starter model that is applied to the chiller Starter Models are 7L 14L 26L or 33L This value is communicated by the LCSSS Voltage Phase A B and C Displays the 3 pha...

Page 97: ...ws the user to enable or disable the Solid State Starter Open SCR safety detection This must never be disabled unless under advisement of the Johnson Controls Factory Shorted SCR Enabled Disabled Service Allows the user to enable or disable the Solid State Starter Shorted SCR safety detection This must never be disabled unless authorized by Johnson Controls Table 90 Navigation Button Access level ...

Page 98: ...otor 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 Current Limit Setpoint Displays the current limit value in use This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link Gateway interface in ISN mode or a locally programmed ...

Page 99: ...age 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 This function is used to provide energy savings following chiller start up Pulldown Demand Time Operator Allows the user to set a period of time for which the pulldown demand limit will be in effect after the chiller starts Table 93...

Page 100: ...te Starter Current Limit Setpoint Displays the current limit value in use This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link Gateway interface in ISN mode or a locally programmed value Pulldown Demand Time Left Displays the time remaining in the programmed pulldown period if the value is nonzero Scale Model...

Page 101: ...ler starts Full Load Amps Operator Define the maximum amps at which the motor can operate This value is viewable when logged in under the OPERATOR or VIEW access level Supply Voltage Range Service Allows the user to select a specific voltage range for voltage checking When not disabled this line voltage range is used to determine a low line and high line voltage threshold for initiating a shutdown...

Page 102: ...alue Override Threshold Setpoint Displays the current limit in use This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode SC EQ communication card in ISN BAS Remote mode or a locally programmed value in Local mode Starter Model Displays the Solid State Starter model that is applied to the chiller Starter Models are 7L...

Page 103: ...abled Disabled Service Allows the user to enable or disable the Solid State Starter Open SCR safety detection This must never be disabled unless under advisement of the YORK Factory Shorted SCR Enabled Disabled Service Allows the user to enable or disable the Solid State Starter Shorted SCR safety detection This must never be disabled authorized by a Johnson Controls Representative KWH Reset Servi...

Page 104: ...20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link or SC EQ communications interface in ISN Remote mode or a locally programmed value in Local mode Input Power Displays the kilowatts measured by and transmitted from the starter KW Hours Displays the cumulative kilowatt hours The microboard calculates this value from the Input Power transmitted from t...

Page 105: ...perator Allows the user to set the period of time for which the pulldown demand limit will be in effect Full Load Amps Service Defines the maximum amps at which the motor can operate This value is viewable when logged in at OPERATOR or VIEW access level Starting Current Service Defines the maximum allowed motor starting amps The starter will limit the starting current to this value kWh Reset Servi...

Page 106: ... the Full Load Amps FLA value Current Limit Setpoint Displays the current limit value in use This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link or SC EQ communications interface in ISN mode or a locally programmed value Pulldown Demand Time Left Displays the time remaining in the programmed pulldown period ...

Page 107: ... Limit value during this time period This function is used to provide energy savings following chiller start up Pulldown Demand Time Operator Allows the user to set a period of time for which the pulldown demand limit will be in effect after the chiller starts kWH Reset Admin Allows the user to reset the cumulative Kilowatt hours to zero 0 Filter Inhibit Service Harmonic Filter installed Only Disa...

Page 108: ...or current as a percentage of the Full Load Amps FLA Current Limit Setpoint Displays the current limit value in use This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link or SC EQ communications interface in ISN mode or a locally programmed value Pulldown Demand Time Left Displays the time remaining in the prog...

Page 109: ...ammed Drive Current values received from the MV VSD according to the following table Table 107 If this results in a model that is not defined in the lookup table the model number is displayed as INVALID and the chiller will not be allowed to run while this is displayed Motor Voltage Rating Displays the voltage rating of the MVVSD as received from the MVVSD This is the Motor Voltage Rating as recei...

Page 110: ...mit value during this time period This function is used to provide energy savings following chiller start up Pulldown Demand Time Operator 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 Service Defines the maximum amps at which the motor can operate this value is viewable when logged in at VIEW or OPERATOR level...

Page 111: ... current as a percentage of the Full Load Amps FLA value For the Variable Speed Drive this is the data returned by the VSD Logic Board Current Limit Setpoint Displays the current limit value in use This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link or SC EQ communications interface in ISN mode or a locally ...

Page 112: ...Service Displays the horsepower configuration of the Variable Speed Drive control 100 Full Load Amps Displays the Full Load Amps value as reported by the VSD Table 111 Programmable Button Access level Description Local Motor Current Limit Operator Allows the user to specify the maximum allowed motor current as a percentage of FLA When the motor current reaches this value the Pre Rotation Vanes wil...

Page 113: ...Table 112 Navigation Button Access level Description Home View Returns user to HOME Screen VSD View Returns user to VSD Screen 113 YK EP Style B Centrifugal Chiller ...

Page 114: ...UN Motor Current Full Load Amps Displays the motor current as a percentage of the Full Load Amps FLA value For the Variable Speed Drive this is the data returned by the VSD Logic Board Current Limit Setpoint Displays the current limit value in use This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link or SC EQ ...

Page 115: ... Amps value as reported by the VSD Table 114 Programmable Button Access level Description Local Motor Current Limit Operator Allows the user to specify the maximum allowed motor current as a percentage of FLA When the motor current reaches this value the Pre Rotation Vanes will not be permitted to open further If the motor current rises above this value the Pre Rotation Vanes will close to reduce ...

Page 116: ...dbus protocol Note Requires a login access level of SERVICE Table 116 Display only Field LED name Description Full Load Amps Displays the motor current as a percentage of chiller Full Load Amps as calculated by the microboard from current values returned from the drive Logic Board Current Limit Setpoint Displays the current limit setpoint value in use This value could come from a 0 to 20mA 4 to 20...

Page 117: ...y the ACC function in the Microboard while the drive is running at less than maximum frequency Surge Avoidance Surge Detected LED Illuminates momentarily when a surge is detected by the Surge Protection feature This feature only detects surges that occur while the drive is running at maximum frequency ACC Surge Count Increments when a surge is detected while the drive is running at less than maxim...

Page 118: ... Sensitivity Allows the Service Technician to adjust the sensitivity of the ACC Surge Detection in the Microboard surges that occur while the drive is running at less than maximum frequency Programmable over the range of 1 5 to 2 5 with default of 2 0 Smaller values increase the sensitivity Manual Surge Point Allows the Service Technician to manually log the present running operating conditions in...

Page 119: ...requency Pre Rotation Vanes Position and Delta P P of the selected point is displayed at the bottom of the screen under selected The default position for the green box is in the upper left corner of the view window Once moved it will remain at the last position The Present Operating conditions are indicated with an as shown above and are detailed at the bottom of the screen under present If the pr...

Page 120: ...splays the present drive output frequency Pre Rotation Vanes Position Selected Displays the PRV position of the selected surge point Present Displays the present PRV position Delta P P Selected Displays the Delta P P of the selected surge point Present Displays the present Delta P P Table 120 Programmable Button Description Map View Allows a Service Technician to change the view from table to list...

Page 121: ...GE UP and PAGE DOWN keypad keys are used to scroll to the previous or next list of parameters This screen is applicable to Variable Speed Drives VSD with the Motor Communications Protocol Setpoint set to Modbus ACC Board is not present and Medium Voltage Variable Speed Drives MVVSD Note Requires a login access level of SERVICE Table 122 Programmable Button Description Map View Allows the Service T...

Page 122: ...Table 123 Navigation Button Description Home Returns user to HOME Screen VSD Returns user to VSD Screen ACC Details Returns user to ACC DETAILS Screen YK EP Style B Centrifugal Chiller 122 ...

Page 123: ...rive this is the data returned by the VSD Logic Board Current Limit Setpoint Displays the current limit value in use This value could come from a 0 to 20mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link or SC EQ communications interface in ISN mode or a locally programmed value Pulldown Demand Time Left Displays the time remaining in the pro...

Page 124: ...ith part number 371 03789 xxx 503HP 60Hz 419HP 50Hz Displays the temperature of the Harmonic Heatsink baseplate Voltage Peak N L1 N L2 N L3 Displays the 3 phase peak voltages as measured 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 L3 Displays the 3 phase voltage Total Harmonic Distor...

Page 125: ...r 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 This function is used to provide energy savings following chiller start up Pulldown Demand Time Operator Allows the user to set a period of time for which the pulldown...

Page 126: ...a safety shutdown is performed when the hours exceed 1400 hours and Motor Lack Of Bearing Lubrication is displayed Refer to Display messages for details of these messages To provide a record of when a motor lubrication is performed the Operator enters his her initials name or user ID using the MOTOR LUBE ACKNOWLEDGE key The date and time of this entry is automatically logged as the Date of Last Lu...

Page 127: ... the last motor lubrication This parameter is automatically recorded as above Operator Initials at Last Motor Lubrication Displays the initials name or user ID entered by the Operator when the motor lubrication is performed Entered as a 3 to 8 character string using the MOTOR LUBE ACKNOWLEDGE key Operating Hours Since Last Motor Lubrication Displays the run hours in whole hours accumulated since t...

Page 128: ...WARNING MOTOR BEARING LUBE REQUIRED and safety shutdown Motor Lack Of Bearing Lubrication Auto Lube Service This setpoint accommodates those chillers that are equipped with the optional Automatic Motor Lubrication hardware that automatically lubricates the motor at regular intervals Since chillers equipped with this hardware don t require manual lubrication the lubrication warnings displayed at 10...

Page 129: ...nk space scroll to the beginning of the alphabet The selection prior to the letter A is a blank space Use the key to enter a period decimal point During the entry process if it is desired to exit the dialog box and retain the previous entry press the CANCEL X key When all of the desired characters have been entered press the Enter key 4 After the lubrication has been completed and the Motor Lube A...

Page 130: ...ype applied Vibration baseline data can be entered manually or by running an auto baseline routine that plots a baseline over a 1 hour period while the chiller is running This screen also serves as a gateway to a subscreen that allows programming of the winding High Temperature Warning Safety Shutdown thresholds and bearing High Temperature and High Vibration Warning Safety Shutdowns Also individu...

Page 131: ...he average of all enabled and valid Motor Winding Temperatures Any winding temperature that registers as open out of range or disabled is not used in the calculation When RTD s are used for winding temperature measurement there are a maximum of 6 temperatures used to calculate the average When transmitters are used there are a maximum of 3 temperatures used to calculate the average The text descri...

Page 132: ...its of the Shutdown 2 0 to 30 0 or Warning 1 0 to 15 0 threshold the threshold is set to the respective upper or lower limit Shaft End High Vibration Warning Shaft End Vibration Baseline X2 Shaft End High Vibration Warning Default Shaft End Vibration Baseline X2 Opposite Shaft End High Vibration Warning Opposite End Vibration Baseline X2 Opposite Shaft End High Vibration Warning Default Opposite E...

Page 133: ...ng Temperatures as reported by the winding transmitters via the Motor Monitoring Board serial communications VSD TRANSMITTER Enables and displays the 3 Motor Winding Temperatures as reported by the winding transmitters via the VSD Logic Board serial communications Bearing Temperature Protection Service Enables the type of temperature sensing device being used to sense motor bearing temperature Whe...

Page 134: ...d data boxes do not appear The High Bearing Vibration Fault Warning and Baseline Not Set Warning will not occur This setting is used when the motor is not equipped with bearing vibration sensors or if is desired to disable the feature for service reasons This is the default setting ROLLING ELEMENT Enables and displays the Bearing Vibration Protection feature Displays the Shaft End and Opposite Sha...

Page 135: ...e 0 1 to 5 default 2 for the Shaft End and Opposite Shaft End bearings The vibration values are not in any particular units of measure They are relative values The larger the number the greater the magnitude of vibration represented Values entered appear on this screen as the Vibration Baseline values A special password is required Auto Baseline Motor Bearing Vibration Service Used to run the auto...

Page 136: ...e TEMPERATURE DISABLE Setpoint key can be used to enable or disable individual winding temperature sensors Not shown when Winding Temperature Protection Setpoint on the MOTOR DETAILS Screen is set to Disabled High Winding Temperature Shutdown Displays the High Winding Temperature safety shutdown threshold as programmed with the WINDING SETUP Setpoint key Not shown when Winding Temperature Protecti...

Page 137: ...d used for this setpoint will either be the values entered by the Vibration Setup Setpoint or values derived from the Vibration Baseline Setpoints refer to Vibration Setup in Table 135 Also displayed is the Delay which is the amount of time the vibration must exceed the warning threshold before the warning is displayed Vibration Input Gain Displays the Vibration Input Gain value as programmed with...

Page 138: ... Screen is set to Disabled Allows a Service Technician to program the High Vibration Shutdown 2 0 to 30 default Baseline X3 and WARNING 1 0 to 15 default Baseline X2 thresholds for the Shaft End and Opposite Shaft End bearings along with the desired delays shutdown 0 to 30 seconds default 15 WARNING 0 to 120 seconds default 30 The vibration thresholds are not in any particular units of measure The...

Page 139: ...te End Vibration Baseline X2 Shaft End High Vibration Shutdown Shaft End Vibration Baseline X3 Shaft End High Vibration Shutdown Default Shaft End Vibration Baseline X3 Opposite Shaft End High Vibration Shutdown Opposite Shaft End Vibration Baseline X3 Opposite Shaft End High Vibration Shutdown Default Opposite Shaft End Vibration Baseline X3 If no baseline values are entered by either the auto ba...

Page 140: ... come from a 0 to 20 mA 4 to 20mA 0 to 10VDC or 2 to 10VDC input in Analog Remote mode PWM signal in Digital Remote mode E Link or SC EQ communications interface in ISN mode or a locally programmed value Leaving Chilled Liquid Temperature Cycling Shutdown Displays the Leaving Chilled Liquid Temperature at which the chiller will shut down to avoid over cooling the building This value is calculated ...

Page 141: ...is function is used to provide energy savings following chiller start up Pulldown Demand Time Operator Allows the user to set a period of time for which the pulldown demand limit will be in effect after the chiller starts Print View Generates setpoints print report Local Motor Current Limit Operator Allows the user to specify the maximum allowed motor current as a percentage of FLA Adjustable from...

Page 142: ...etpoint to a minimum cut out of 36 F water 34 F water with Smart Freeze enabled or 6 F brine It establishes the minimum allowed temperature for the Leaving Chilled Liquid Temperature and prevents over cooling of the building Anytime the Leaving Chilled Liquid Temperature Setpoint is increased the shutdown threshold is 36 0 F water or 6 0 F brine for the next ten 10 minutes If Smart Freeze is enabl...

Page 143: ...em parameters Quick start Admin to initially enable the feature Service if feature is enabled Moves to the subscreen allowing the Quick Start feature to be enabled disabled Once enabled this screen allows programming and viewing of Quick Start setpoints and parameters This feature is only available on LVVSD and MVVSD 143 YK EP Style B Centrifugal Chiller ...

Page 144: ...d Program Jumpers and Program Switches is displayed A qualified Service Technician establishes this configuration per the desired operation This screen also serves as a gateway to more subscreens for defining general system parameters Table 140 Display only 031 02430 001 and 031 03630 007 Microboard Refrigerant selection Displays R134a based upon the position of SW1 2 On R 134A Off R 22 Liquid typ...

Page 145: ...ical to logging system shutdowns accurately and for utilizing the scheduling capabilities When prompted to enter a date value the user must enter the day month and four digit year using leading zeroes as necessary If within range the value will be accepted If out of range the user is prompted for the information again At this point the user may retry the date entry or cancel the programming attemp...

Page 146: ...e the anti recycle timer for test purposes only Head Pressure Control Service Allows the Service Technician to enable or disable the Head Pressure Control feature Heat Recovery Service Allows the Service Technician to enable or disable the Heat Recovery feature Power Failure Restart Operator Allows the user to select Manual or Automatic restart after power failure Coastdown Service Allows a Servic...

Page 147: ...rature Range Service Special order R134a chillers are allowed to operate at higher than standard condenser temperatures The resulting higher operating pressures require higher condenser warning and safety shutdown thresholds than standard applications These chillers are equipped with a special High Pressure Cutout Switch HPCO that can be set to trip at a higher pressure This setpoint allows for ei...

Page 148: ...e subscreen allowing configuration of system communications Printer View Moves to the subscreen allowing configuration and control of printer functions Sales order View Moves to the subscreen displaying the Sales Order information for the chiller system Operations View Moves to the subscreen displaying operating parameters of the chiller system Diagnostics Service Moves to the subscreen allowing l...

Page 149: ...VSD achieves its start frequency the speed ramp rate is faster than with normal control Quick Normal Start If the conditions for a Quick Restart are not met the next time the chiller is started it has a prelube period just like a normal start however the vanes will begin to open at the beginning of prelube instead of waiting until System Run At the completion of prelube the VSD is started and afte...

Page 150: ...key A dialog box appears with the range of settings Mapping Enable Service This is the same setpoint as shown on the ACC DETAILS Screen It can be programmed on either the ACC Screen or the QUICK START Screen It sets the Delta T needed to be met to enable surge mapping and speed reduction initially on startup 0 5 F to 4 0 F default 1 0 F Pulldown Override Time Service This setpoint is the length of...

Page 151: ...stest pulldown time but nearly always results in setpoint overshoot Depending upon how close the Low Chilled Liquid Temperature shutdown threshold is to the LCHLT Setpoint this could result in a LOW CHILLED LIQUID TEMPERATURE cycling shutdown 0 F to 10 F default 5 F The Leaving Chilled Liquid Temperature and setpoint is shown on the QUICK START Screen for reference This setpoint sets one of the tw...

Page 152: ...Table 146 Navigation Button Access level Description Home Service Returns user to HOME screen Setpoints Service Returns user to SETPOINTS screen YK EP Style B Centrifugal Chiller 152 ...

Page 153: ...ls the Stop time with any time other than 12 00 AM the chiller is OFF for that day If the user desires the chiller to operate continuously through several days the Stop time of Day 1 can be set to 11 59 PM and the Start time of Day 2 can be set to 12 00 AM The chiller will not stop but continue to operate until the stop of Day 2 The user has the ability to define a standard set of Start Stop times...

Page 154: ...Exception specification in combination with the Standard week definition as described above Schedule Enabled Disabled Operator Allows the user to enable or disable the monitoring function which enforces the scheduled starting and stopping of the chiller Repeat Sunday Schedule Operator Duplicates the schedule defined for Sunday for the remainder of the standard weekdays Reset All Exception Days Ope...

Page 155: ...t the Enter button is pressed and the value may be entered Table 150 Display only Field LED name Access level Description None Table 151 Programmable Field LED name Access level Description Data display mode Operator Define the unit system English or Metric used by the chiller display Data format Operator This setpoint allows the date format to be displayed in DDD MMM YYY default DD MM YYY or YYYY...

Page 156: ...fter the user navigates from the USER Screen to another screen English is the only language available User password 1 4 Service This allows the user to specify up to four 4 custom password values Each password will then require a corresponding User ID and user level User level 1 4 Service This allows the user to specify up to four 4 custom User Access Levels Each access level will then require a c...

Page 157: ...his ID number is also printed at the top of reports Printer Setup and COM2 Setup Operator Pressing either key places a green selection box around the first changeable parameter Use the and keys to place the selection box around the desired parameter to be changed With the selection box around the desired parameter press the Enter key A dialog box is displayed permitting data entry In VSD or LC SSS...

Page 158: ...el communicates through the modem port COM2 Data Bits Displays the number of data bits the panel uses to communicate to the modem port COM2 Parity Bits Displays the number of parity bits the panel uses to communicate through the modem port COM 2 Stop Bits Displays the number of stop bits the panel uses to communicate through the modem port Table 155 Navigation Button Access level Description Home ...

Page 159: ...e Button Access level Description Log Start Time Operator Sets the time at which the scheduled print logs automatically print Output Interval Operator Define the interval at which log printing will occur 1 minute to 1440 minutes Default 60 minutes Automatic Printer Logging Enabled Disabled Operator Enable the printer to begin printing status reports beginning at the programmed start time and recur...

Page 160: ...e ACC As the map is received the parameters for each point are printed Print Report Operator Select the report type to print when the PRINT REPORT key is selected This can vary from status report present system parameters Setpoints report present value of the system setpoints Schedule report present value of the system schedule times or a Sales Order Data report information provided on the SALES O...

Page 161: ...ined model number of the chiller system Panel serial number Factory defined serial number for the micropanel Chiller serial number Factory defined serial number for the chiller system YORK Order Number Factory defined order number under which the chiller was sold System information Factory defined conditions for which the chiller was originally rated and sold Condenser and Evaporator Design Load I...

Page 162: ...er is destined for Print View This generates a listing of the Sales Order data Table 161 Navigation Button Access level Description Home View Returns user to HOME Screen Setup View Returns user to SETUP Screen Economizer Order View Admin to enter data Displays the Economizer Sales Order Screen Finish Panel Setup Admin Pressing this key saves all of the Sales Order Information YK EP Style B Centrif...

Page 163: ...ng a microboard Table 162 Programmable Button Access level Description Change Admin to change Pressing this button displays a Green rectangle around the Motor Code parameter The service technician can then use the keypad keys to enter the appropriate values for each of the fields Table 163 Navigation Button Access level Description Home View Returns user to HOME Screen Sales order View Admin to ch...

Page 164: ...r Defines whether the control of the chiller will be Local Digital Remote Analog Remote Modem Remote or ISN BAS Remote Number of Starts Admin Displays the number of the starts the chiller has initiated This may be reprogrammed to a desired value generally when this value has been reset due to a Microboard replacement but should not be done so arbitrarily Operating Hours Admin Displays the total ac...

Page 165: ...ssor Service Automatically set to Style G K6 7 Com Edit Phone Numbers Service Displays up to two service phone numbers The Regional service phone number is displayed as the first number Although the label and number can be changed appropriately the default for this entry is Johnson Controls North American Toll Free Number 1 800 861 1001 The Local service phone number is displayed as the second num...

Page 166: ...hard copy report of the parameter values at the time of the shutdown Table 167 Display only Field LED name Description Last Normal Shutdown This window displays the date and time and the description of the last normal shutdown A normal shutdown is defined as Local Soft Stop Switch Remote Digital Analog or ISN BAS Last Fault While Running This window displays the date and time and the description o...

Page 167: ...es a move to a subscreen containing the value of select chiller parameters at the time of the associated shutdown based upon the Select Fault setting Trending View Causes a move to a subscreen allowing the user to view trending data on selected chiller parameters Custom View Operator Causes a move to a subscreen allowing the user to view the CUSTOM SETUP Screen Security Log Service Causes a move t...

Page 168: ... name Description History Printout This is the on screen printout of the system parameters Table 171 Programmable Button Access level Description Page Up View Scroll up in the displayed data if applicable Page Down View Scroll down in the displayed data if applicable Print History View This generates a report listing the status of the chiller parameters at the time of the selected shutdown Table 1...

Page 169: ...alue and the new setpoint value Note Requires a login access level of SERVICE Table 173 Display only Field LED name Description Category Displays the category of the setpoint motor evaporator condenser etc Setpoint Displays the setpoint that was changed New Value Displays the value that was entered at the time of the setpoint change Table 174 Programmable Button Description Log Entry Allows the us...

Page 170: ... Home Service Returns user to HOME Screen History Service Returns user to HISTORY Screen View Details Service Causes a move to a subscreen containing the details of the setpoint change selected with the LOG ENTRY key YK EP Style B Centrifugal Chiller 170 ...

Page 171: ...able 176 Display only Field LED name Description Description Displays the setpoint category that was changed Time Displays the time the setpoint was changed Date Displays the date the setpoint was changed Access level Displays the login Access Level used to make the setpoint change User ID Displays the login User ID used to make the setpoint change Old Value Displays the previous setpoint value Ne...

Page 172: ...Table 178 Navigation Button Access level Description Home Service Returns user to HOME Screen Security Log Service Returns user to SECURITY LOG Screen YK EP Style B Centrifugal Chiller 172 ...

Page 173: ...e parameters can be left there for monitoring by operations personnel Table 179 Display only fields Field LED name Description None Note Requires a login access level of SERVICE Table 180 Programmable Button Access level Description Print View This generates a listing of the parameters displayed on this screen Table 181 Navigation Button Access level Description Home View Returns user to HOME Scre...

Page 174: ...gin access level of SERVICE Table 182 Display only Field LED name Description Slot numbers Lists the available parameters that can be displayed The desired parameters for display are selected from this list Table 183 Navigation Button Access level Description Home View Returns user to HOME Screen Custom View Service Returns user to CUSTOM VIEW Screen YK EP Style B Centrifugal Chiller 174 ...

Page 175: ... DOWN keys to scroll through the Slot Numbers list and note the number of the parameters to be displayed Pressing the SELECT key places a green colored selection box around Custom Slot 1 If it is desired to change an already entered parameter use the 5 and 6 keys to place the selection box around the Slot Number to be changed With the selection box around the Slot Number to be changed or entered p...

Page 176: ...ta points across the X Axis If the actual value of the sampled parameter is less than the Y Axis label minimum for that parameter the value will be plotted at the minimum value Similarly if the actual value is greater than the Y Axis label maximum for that parameter the value will be plotted at the maximum value There are three types of charts that can be created One Screen Continuous or Triggered...

Page 177: ...zen on the display until another graph is started with the START key The STOP key is only available if trending is running Print View Allows the data on the TREND Screen to be printed in tabular format If set to existing a snapshot of the data presently on the screen is sent to the printer If set to new all data collected after pressing this key will be sent to the printer as it is collected If se...

Page 178: ... Select 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 X key A dialog box is displayed permitting data ent...

Page 179: ...but also the full screen time display The full screen time display is a result of the selected interval in seconds multiplied by the 450 data points For example if the Data Collection Interval is programmed for 900 seconds the parameter would be sampled every 900 seconds with the last 112 5 hours 4 7 days of data viewable on the screen Therefore the selected interval is a compromise between resolu...

Page 180: ...ample interval and full screen display meet the requirements If not select a different sample interval Table 188 Navigation Button Access level Description Home View Returns user to HOME Screen Trend View Returns user to TREND Screen Slot Numbers Causes a jump to a subscreen that lists the Slot Numbers of the most commonly monitored parameters The desired parameters to be plotted are selected from...

Page 181: ... Trigger is compared to a value selected as the Primary Test using the Primary Operator as a comparator If it is evaluated as true then the data collection is started or stopped after any selected trigger delay per the selected Trigger Action A Secondary Trigger can be evaluated with the Primary Trigger to start stop data collection The Primary to Secondary Operator is used to define the trigger c...

Page 182: ...o the Primary Trigger maximum value Trigger Action Operator Selects whether the trend data collection will Start or Stop when the trigger comparisons are true If set to Start data collection will stop after one screen of data is collected Trigger Delay Operator Allows the data collection start or stop to be delayed after the triggers evaluate as true The delay is selectable from 1 to 864000 second...

Page 183: ...rator for the Secondary Trigger s relationship to the Secondary Test If the Secondary trigger is an Analog value selections are If the Secondary Trigger is a digital event selections are Equal To Not Equal To Secondary Test Operator Selects the value or condition that the Secondary Trigger is compared to Selection ranges from the Secondary Trigger minimum to the Secondary Trigger maximum Table 191...

Page 184: ...ers into Data Points 1 through 6 Table 192 Display only Field LED name Description Slot Numbers These are the Slot Numbers of the most commonly used parameters Table 193 Programmable Button Access level Description Page Down Operator Scroll down in the displayed data Page Up Operator Scroll up in the displayed data Print Operator Generates a list of the Slot Numbers of the available parameters Tab...

Page 185: ...ure X X X X X X 1813 Delta P P X X X X X X CONDENSER 2048 Leaving Condenser Liquid Temperature X X X X X X 2049 Condenser Liquid Flow Switch X X X X X X 2050 Condenser Liquid Pump X X X X X X 2051 Entering Condenser Liquid Temperature X X X X X X 2052 Condenser Pressure X X X X X X 2053 Condenser Saturation Temperature X X X X X X 2054 Condenser Small Temp Difference X X X X X X 2057 High Pressure...

Page 186: ... Voltage X X X X X X 8281 Diffuser Gap Open X X X X X X 8282 Diffuser Gap Close X X X X X X 17408 Discharge Pressure X X X X X X STARTER 2305 Motor Run X X X X X X 2306 Full Load Amps X X X X n a X 2351 Operating Hours Since Last Motor Lubrication X X X X n a X 2560 Phase A Current X n a n a n a n a n a 2561 Phase B Current X n a n a n a n a n a 2562 Phase C Current X n a n a n a n a n a 2563 Phas...

Page 187: ...ge CL n a n a n a n a X n a ADAPTIVE CAPACITY CONTROL 2847 Surge Margin Adjust n a n a n a X X n a 2849 ACC Surge Count n a n a n a X X n a 2981 ACC Surge Sensitivity n a n a n a X X n a 3004 VSD Start Frequency n a n a n a X X n a 3005 Mapping Enable n a n a n a X X n a 3006 Quick Ramp Current Threshold n a n a n a X X n a ECONOMIZER OPERATION 29446 Econ Number of Starts X X X X X X 29447 Econ Op...

Page 188: ... Temperature X X X X X X 30473 Econ Speed of Sound X X X X X X 30474 Econ Isentropic Head X X X X X X 30475 Econ Omega X X X X X X 30476 Econ Surge Mach X X X X X X 30478 Econ Anti Surge Minimum Temperature X X X X X X 30722 Econ PRV Command Pos X X X X X X 31493 Econ Active Load Limit X X X X X X 31494 Econ Head Pressure X X X X X X 31511 Econ Motor Current Max Override Threshold X X X X X X 3175...

Page 189: ...ors MESSAGE COLOR Normal Operation Green Warning Yellow Cycling Shutdown Orange Safety Shutdown Red Status messages System ready to start The chiller is shut down but will start upon receipt of a local or remote start signal Cycling shutdown Auto restart The chiller is shut down on a cycling shutdown The cause of the shutdown is still in effect and is displayed on the Details Line of the Status Ba...

Page 190: ...er occurs first the Run Signal is removed from the compressor motor starter and a System Coastdown is performed Soft Shutdowns are initiated by the following 1 Leaving Chilled Liquid Low temperature 2 Remote Stop 3 Multi Unit Cycling Contacts Open 4 System Cycling Contacts Open 5 Control Panel Schedule 6 Operator Initiated at Keypad While the Vanes are closing during any Soft Shutdown if a Local S...

Page 191: ... 104 103 110 On fall stop close 102 101 109 An example of current limit is as follows If a Solid Sate Starter chiller FLA is 100 Amps and the Current Limit Setpoint is 50 the following will occur 50 Amps inhibit vane open 52 Amps vanes begin closing 51 Amps vanes stop closing 49 Amps allow automatic vane control Load control mode Access level required Service The Compressor Motor Variable Speed Dr...

Page 192: ... a Condenser or Evaporator transducer failure This message will be displayed until the condition clears and the WARNING RESET Keypad key is pressed in Operator or higher access mode Condition not checked in Brine mode Warning Standby Lube Low Oil Pressure A minimum of 15 PSID of oil pressure was not achieved in the first 30 seconds of a Standby Lubrication cycle or the pressure decreased below thi...

Page 193: ...Form 160 00 M1 Harmonic Filter operation should not be altered by anyone other than a qualified Service Technician Warning Harmonic Filter Data Loss Communications between the Harmonic Filter Logic Board and the Compressor Motor Variable Speed Drive VSD Logic Board or the Adaptive Capacity Control Board is not occurring While this condition exists all filter related parameters are displayed as X s...

Page 194: ...t has exceeded 0 28VDC for 3 continuous minutes while the chiller was running This feature verifies the operation of the Stall transducer and the Condenser transducer Since both transducers are measuring essentially the same pressure both outputs should be within the specified tolerance This message must be manually cleared It will be displayed until the transducer outputs are within the acceptabl...

Page 195: ...ication Warning Or Fault This warning message will not be displayed if the Auto Lube Setpoint on the MOTOR LUBRICATION Screen enabled Warning Motor High Winding Temperature This warning occurs when any of the enabled Motor Winding Temperatures exceeds the following High Winding Temperature Shutdown threshold 18 F for 3 continuous seconds This warning will automatically clear when all winding tempe...

Page 196: ... pressed Cycling shutdown messages Multiunit Cycling Contacts Open The Multiunit Cycling contacts connected to I O Board TB4 9 have opened to initiate a cycling shutdown If the chiller is running when this occurs the Pre Rotation Vanes are driven fully closed prior to shutting down the chiller The chiller will automatically restart when the contacts close System Cycling Contacts Open The System Cy...

Page 197: ...while the chiller was running or failed to close during the System Prelube period The chiller will automatically restart when the flow switch closes While this cycling shutdown is active the evaporator pump relay contacts TB2 44 45 remain closed until the chiller is given a stop command or has another fault Condenser Flow Switch Open The condenser water flow switch has remained open for 30 continu...

Page 198: ...d produce this message An LED on the respective device illuminates to identify the specific fault that has occurred Refer to Solid State Starter Mod A Operation and Maintenance Form 160 46 OM3 1 for details of Solid State Starter initiated shutdowns and OptiView Control Center Service Instructions Form 160 54 M1 for CM 2 initiated shutdowns The chiller will automatically restart when the contacts ...

Page 199: ...down anytime its internal protection circuits will not permit the Drive to run The contacts remain open until its internal protection circuits are satisfied it is safe to operate Some Drive initiated shutdowns require AC Power to be cycled to clear the fault The chiller will automatically restart when the contacts close Mod B Solid State Starter cycling shutdown messages LCSSS Initialization Faile...

Page 200: ...or more phases has decreased to less than 10 of the FLA for a minimum of 1 line cycle This check is inhibited during the first 4 seconds of System Run and until the motor current is greater than 25 of the Job FLA The chiller will automatically restart upon completion of System Coastdown LCSSS Low Phase X Temperature Sensor The Liquid Cooled Solid State Starter Logic Trigger Board has detected that...

Page 201: ...olts Restart Volts Disabled None N A 200 208 160 174 220 240 185 200 380 305 331 400 320 349 415 335 362 440 480 370 400 550 600 460 502 LCSSS High Supply Line Voltage The Liquid Cooled Solid State Starter Logic Trigger Board has detected that the compressor motor AC Power Line Voltage in any phase exceeded the high line voltage threshold continuously for 20 seconds The chiller will automatically ...

Page 202: ...l Center has not yet received the cause of the fault from the VSD via the serial communications link The VSD shuts down the chiller by opening the Motor Controller VSD STOP CONTACTS located on the VSD Logic Board and connected between TB6 16 and TB6 53 in the Control Center The Microboard in the Control Center then sends a request for the cause of the fault to the VSD Logic Board via the Adaptive ...

Page 203: ... 1890 Amps If an over current trip occurs but the chiller restarts and runs without a problem the cause may be attributed to a voltage sag on the utility power feeding the VSD that is in excess of the specified voltage range for this product Thus is especially true if the chiller was running at or near full load If there should be a sudden dip in line voltage the current to the motor will increase...

Page 204: ...has been removed VSD Low DC Bus Voltage If the DC link drops below 500VDC or 414VDC for 50 Hz applications the drive will initiate a system shutdown A common cause for this shutdown is a severe sag in the incoming power to the drive Monitor the incoming three phase AC line for severe sags and also monitor the DC link with a voltmeter VSD Low DC Bus Voltage 575V 60 Hz applications If the DC Link Vo...

Page 205: ...exchanger to maintain adequate GPM If the pressure drop is less than 8 feet it will be necessary to correct the flow problem or add a booster pump as is applied on retrofit chillers VSD Invalid Current Scale Selection Since the part number of the VSD Logic Board is the same on all horsepower sizes the position of Program Jumpers tells the Logic Board the size of the VSD employed This allows the VS...

Page 206: ...ocessors on the VSD Logic Board VSD Run Signal Redundant Run Signals are generated by the Control Center one via TB6 24 and the second via the serial communications link Upon receipt of either of the two Run Commands by the VSD a 5 second timer will commence timing If both Run Commands are not received by the VSD Logic Board within 5 seconds a shutdown is performed and this message is displayed Th...

Page 207: ...d and this message is generated VSD Harmonic Filter Precharge Low DC Bus Voltage 575V 60 Hz applications If the DC Link Voltage does not reach at least 60VDC within 100 milliseconds or at least 630VDC within 5 seconds after the filter precharge command has been received this shutdown is performed Harmonic Filter Low DC Bus Voltage The Harmonic Filter generates its own Filter DC link Voltage by swi...

Page 208: ... Board before the timer expires a shutdown is performed and this message is generated Harmonic Filter DC Current Transformer 1 During initialization with no current flowing through the DC Current Transformers DCCT s the DCCT output voltages are measured and compared with a preset limit via the Filter Logic Board If the measured values exceed the preset limits the DCCT s are presumed to be defectiv...

Page 209: ...ter Service Instructions Form 160 54 M1 and the Leaving Chilled Liquid Temperature Setpoint is less than 38 0 F Evaporator Transducer Or Leaving Liquid Probe A possible defective Evaporator Pressure transducer or Leaving Chilled Liquid temperature transmitter has been detected The pressure and temperature that these devices are indicating are not in the correct relationship to each other The Contr...

Page 210: ...r the pressure decreases to less than 120 0 PSIG R134a less than 205 PSIG R22 and the Operator presses the WARNING RESET button For special order R134a high condenser temperature chiller applications the Condenser Temperature Range Setpoint is set to Extended The trip reset threshold is then 200 140 PSIG Condenser High Pressure Stopped The condenser pressure exceeded 160 0 PSIG R134a 240 0 PSIG R2...

Page 211: ... 5 seconds of the System Prelube period The differential oil pressure is the difference between the output of the Sump Oil Pressure transducer system low pressure and the output of the Pump Oil Pressure transducer system high pressure The chiller can be started after the Operator presses the WARNING RESET button Oil High Differential Pressure The differential oil pressure increased to greater than...

Page 212: ...l Power Failure A Control Power failure has occurred If the power failure duration was less than the duration of the applicable coastdown period 240 seconds Default adjustable 240 to 900 the remainder of the coastdown is performed upon restoration of power The chiller can be started after the Operator presses the WARNING RESET button This message can indicate a Cycling auto restart after power fai...

Page 213: ...gh speed thrust collar and the tip of the Proximity Probe has decreased to less than 17 mils The clearance is only checked during the last 20 seconds of System Prelube during System Run and during coastdown Therefore the fault is only detected during those periods CAUTION This shutdown must be evaluated by a qualified Service Technician prior to starting the chiller Starting the chiller without th...

Page 214: ... Last Motor Lubrication and Time Of Last Motor Lubrication It also resets the Operating Hours Since Last Lubrication to zero The date this warning occurs is stored as the Date Of Last Motor Lubrication Warning Or Fault This message will only be displayed if the Auto Lube Setpoint is disabled With this setting if the Shutdown Setpoint is enabled this safety shutdown will occur If shutdown is disabl...

Page 215: ...itch is used the input goes low to indicate a leak This safety shutdown will not occur when the Motor Cooling Coil Leak Protection Setpoint is set to Disabled The chiller can be started after the leak sensor no longer indicates a leak and the Operator presses the WARNING RESET button Mod B SSS safety shutdown messages LCSSS Shutdown Requesting Fault Data The Liquid Cooled Solid State Starter Logic...

Page 216: ...Control Center Service Instructions Form 160 54 M1 LCSSS Phase X Open SCR An open SCR in phase A B or C designated as X in message has been detected This safety shutdown has the same criteria as LCSSS OPEN SCR above however the phase in which the open SCR occurred is identified LCSSS Phase Rotation The Liquid Cooled Solid State Starter Logic Trigger Board has detected the three phase compressor mo...

Page 217: ...the Operator presses the WARNING RESET button VSD High Phase B Inverter Heatsink Temperature Style D VSD See PHASE A message above VSD High Phase C Inverter Heatsink Temperature Style D VSD See PHASE A message above VSD High Converter Heatsink Temperature Style D VSD See PHASE A message above VSD High Converter Heatsink Temperature Applicable to VSD with Part Number 371 02767 XXX 60 Hz and 371 037...

Page 218: ...e fault condition clears the OVERTEMP RESET button on the Filter Logic Board is pressed and the Operator presses the WARNING RESET button Harmonic Filter High Baseplate Temperature Applicable to VSD with part number 371 02767 XXX 60 Hz and 371 03700 XXX 50 Hz This shutdown occurs when the baseplate temperature exceeds 174 F 79 C The chiller can be started after the fault condition clears the OVERT...

Page 219: ...d after the Operator presses the WARNING RESET button VSD Low Frequency Detected After a 20 second bypass after entering System Run if the VSD frequency decreases to below 1 Hz less than the minimum allowed frequency for 25 continuous seconds this shutdown is initiated The minimum allowed frequency for the VSD is 25 Hz for 50 Hz units 30 Hz for 60 Hz units The Operator must press the WARNING RESET...

Page 220: ... of shutdown Adaptive Capacity Control ACC Surge Map System conditions at instant all surge points were mapped Compressor Motor Variable Speed Drive applications Access Level Required SERVICE level Printer ACC Trend Prints a snapshot of the existing TREND Screen data or prints new data collected after the TREND PRINT key is pressed The printer can be permanently connected to the Control Center or ...

Page 221: ...l codes Other printers might provide proper operation 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 co...

Page 222: ...facturer with respective printer Okidata OKIPOS 441 1 With the printer power off remove the two screws which hold the RS232 Interface Module 2 Pull the RS232 Interface Module out of the printer 3 Set DIP switch SW2 2 to OFF to select 19200 BPS Do not change any other switch settings 4 Re install the RS232 Interface Module and two mounting screws 5 Load paper and install the printer ribbon into the...

Page 223: ...he PRINTER Screen Automatic Printer Logging Enables and disables automatic data logging Log Start Time Enter the time the first print is desired Output Interval Enter the desired interval between prints Downloading system prints to a laptop About this task Downloading system histories to a file is another useful method to capture system operating conditions The following instructions are used to e...

Page 224: ...be captured The HyperTerminal will display the printed information and the information will be recorded as a txt file Result When the print file has been recorded select Transfer from the toolbar and capture from the drop down menu and select Stop This will stop the transfer and allow access to the capture file The following additional RS232 connections are used to wire up serial devices for deskt...

Page 225: ...ns 5 25 Long x 3 75 Wide x 2 5 High Paper Thermal 57mm 2 25 Type Dot Matrix Purchase 800 637 0529 North America 44 0 845 246 6717 Europe and ME P N AWT 05 505788 printer cable 1 roll of paper P N AWT 05 505594 power supply P N AWT 05 505671 case 20 rolls of paper Printer connections Connect the printer to the Control Center Microboard as follows Only one printer can be connected at a time Table 20...

Page 226: ...rinter Figure 71 Communications block diagram MICRO OPTIVIEW R TX1 G PC HYPERTERMINAL E LINK COM 1 RS 232 TX DB9 2 5 4 Port 2B RX TX COM GND DSR GTX GRX COM 4B J2 9 4 2 J2 7 6 LD14492 YK EP Style B Centrifugal Chiller 226 ...

Page 227: ...Figure 72 Sample printout of Status 227 YK EP Style B Centrifugal Chiller ...

Page 228: ...Figure 73 Sample printout of Status cont YK EP Style B Centrifugal Chiller 228 ...

Page 229: ...Figure 74 Sample printout of Setpoints 229 YK EP Style B Centrifugal Chiller ...

Page 230: ...Figure 75 Sample printout of Setpoints cont YK EP Style B Centrifugal Chiller 230 ...

Page 231: ...Figure 76 Sample printout of Schedule 231 YK EP Style B Centrifugal Chiller ...

Page 232: ...Figure 77 Sample printout of a Sales order YK EP Style B Centrifugal Chiller 232 ...

Page 233: ...Figure 78 Sample printout of a Sales order cont 233 YK EP Style B Centrifugal Chiller ...

Page 234: ...Figure 79 Sample printout of History YK EP Style B Centrifugal Chiller 234 ...

Page 235: ...Figure 80 Sample printout of History cont 235 YK EP Style B Centrifugal Chiller ...

Page 236: ...Figure 81 Sample printout of a security log report YK EP Style B Centrifugal Chiller 236 ...

Page 237: ...Figure 82 Sample printout of trend data new or existing points Figure 83 Sample printout of a custom screen report 237 YK EP Style B Centrifugal Chiller ...

Page 238: ...Figure 84 Sample printout of an Adaptive Capacity Control new map point report Figure 85 Sample printout of an Adaptive Capacity Control existing map points report YK EP Style B Centrifugal Chiller 238 ...

Page 239: ...the sensors communication ports display and keypad have the same connector designations The jumpers related to the display and thermal flow switches remain the same and should be set to the same positions as the existing 02430 microboard The SW1 DIP switch settings should be set the same as the SW1 switch positions on the 02430 Position SW1 4 on the 03630 is now used in place of JP6 on the 02430 t...

Page 240: ...el Table 210 Diagnostic display codes LED display code normal boot up Description 00 DIP 4 OFF Booting from internal Flash program CH Flash Checksum Test in progress AP Application program setup in progress Application program is running LED display code other 01 DIP 4 ON Booting from SD card Normal when loading a program 02 DIP 4 ON Booting from USB port 05 DIP 4 ON PIC application is being confi...

Page 241: ... available from the Baltimore Parts Distribution Center PDC There is a Program card for each chiller type YT YK YS YR YD etc and each has a unique part number A label affixed to the Program card contains the part number and version The version is an alpha numeric code that identifies the chiller model applicability language package language package revision level and chiller operating program revi...

Page 242: ...ors to provide high performance embedded processor cards This will allow using future processors if the current ones become obsolete without having to re design the microboard Watchdog Circuit The Watchdog circuit performs two functions as follows Power failure detection Program latch up detection prevention The Watchdog Circuit monitors the 5VDC from the power supply and the 3 3VDC from the onboa...

Page 243: ...e graphic screen Program jumpers Program switches The Program Jumpers and Program Switches are used to alter the program operation or configure the microboard hardware for specific operation This allows the Program and Microboard to be universal for all standard applications The position of some jumpers can be determined by the Service technician to meet the desired operation Others must be positi...

Page 244: ...le voltage 0 to 5 0VDC SHARP LQ10D367 LQ10D368 LQ104V1DG61 LQ104V1DG81 and LG Semicon LP104V2W displays OUT Variable resistance not used JP10 Factory mounted thermal ﬂow sensor evaporator connected to J14 Pins 1 2 Not used Pins 2 3 Place shunt in this position JP11 Factory mountedthermal ﬂow sensor condenser connected to J14 Pins 1 2 Not used Pins 2 3 Place shunt in this position JP12 Not used Pin...

Page 245: ...applied JP18 Applies a 120 Ohm terminating resistor IN Not used OUT Normal position no bias applied JP19 Applies a pull up voltage to the COM2 terminal IN Not used OUT Normal position no bias applied JP20 Applies a pull down voltage to the COM3 terminal IN Not used OUT Normal position no bias applied JP21 Shunt must be removed or hang on one pin Pins 1 2 Not used Pins 2 3 Not used JP22 Shunt must ...

Page 246: ...lows a 0 to 20mA or 4 to 20mA input on J22 4 Pins 2 3 Not used JP25 DC Undervoltage signal for Proximity Probe Pins 1 2 Correct position for YKEP Pins 2 3 Not Used JP26 Applies a pull down voltage to COM6 RS 485 termnal Pins 1 2 Not used Pins 2 3 Normal position no bias applied JP27 Applies a pull down voltage to the COM5B terminal IN Not used OUT Normal position no bias applied JP28 Applies a 120...

Page 247: ...e row column is being pressed The microprocessor reads the entire keypad by repeating this routine beginning with row 1 and ending with row 4 The entire keypad is continually read while the Control Center is powered CM 2 board or Style A Solid State Starter interface The microboard retrieves certain operating parameters via J10 from the compressor motor starter control board CM 2 Current Board for...

Page 248: ...e compatible 02505 Logic Trigger control board When SSS Mod B is selected as the motor drive type on the SETUP Screen additional setpoints must be entered on the screen The appropriate serial port COM 2 Modbus or COM 5 YORK must be enabled using the Motor Communications Protocol setpoint The selections are Modbus or YORK When Modbus is selected the Motor Node ID setpoint must be set to match the s...

Page 249: ... at J2 6 Signal levels are standard RS 232 The SC EQ polls system pressures temperatures and status from the microboard It holds it for retrieval by third party devices Refer to SC EQ Installation Instructions Form 450 50 N1 for details on the SC EQ Smart Chiller Equipment communications card Digital inputs The I O Board converts the 115VAC inputs to logic level inputs for the microboard at J19 A ...

Page 250: ... Analog Input of the microboard Refer to Form 160 54 M1 for more details After power is applied there is a thermal warm up period of up to 20 seconds During this time the output could be unstable When the setpoint or greater flow rate is sensed the solid state relay output is turned ON causing it to conduct current through the 7 5K ohm Microboard load resistor to the 5VDC This applies greater than...

Page 251: ...ry word 6 for each of the 3 colors The greater the binary value the more light is permitted to pass The pixels are driven sequentially from left to right beginning with the top row To coordinate the drive signals and assure the pixels in each row are driven from left to right and the columns are driven from top to bottom the drive signals are accompanied by a clock and horizontal and vertical sync...

Page 252: ... voltage between J6 7 and J6 8 can be varied from 0VDC 100 brightness to 5 0VDC 0 brightness If configured for variable resistance the resistance between J6 6 and J6 7 varies from 0 ohms 0 brightness to 10K ohms 100 brightness Remote setpoints Remote Leaving Chilled Liquid Temperature and Current Limit setpoints can be input via the RS 232 SC EQ communications interface at J2 or directly to the mi...

Page 253: ...s are 1 Standard Electric motor applications When STANDARD is selected the Coastdown Time setpoint appears This setpoint is used to set the duration over the range of 240 default to 900 seconds or 150 default to 900 seconds as determined by the selection made for the Chiller Style Compressor setpoint on the OPERATIONS Screen 2 Enhanced Coastdown is 15 minutes in duration Motor Controller Loss of C...

Page 254: ... Solid State Starter applications Only displayed when Modbus is selected for the Motor Communications Protocol setpoint Allows the Service technician to enter the Modbus Address of the VSD logic board or Style B LCSSS Logic Trigger Board The Motor Node ID setpoint must match the Modbus Address assigned to these boards Whenever the microboard is reading or writing to these devices it transmits the ...

Page 255: ...etry Diffuser VGD is enabled on the OPERATIONS Screen or Motor Drive Type setpoint is set to VSD or MVVSD The actual connection point of the potentiometer is determined by the equipment conﬁguration If equipped with a VSD in YORK Protocol configuration it is connected to the ACC Board In Modbus Protocol configuration it is connected to the microboard J7 If not equipped with a VSD but equipped with...

Page 256: ...nder the ground screw If replacing a 02430 10 Connect power supply harness P30 to J30 on the panel wiring harness J32 to P32 on the panel wiring harness P1 to J2 on the 03630 and P3 to J3 on the 03630 11 The VSOP J20 3 pin plug has been replaced by a removable screw terminal plug The wires will need to be cut from the 02430 P20 plug Strip the 3 wires 1 8 and insert them in the new 03630 J20 plug N...

Page 257: ...ate However since chiller operating programs are occasionally revised the Service technician could have a Program card that does not contain the latest program Program cards 031 03601 002 for YK EP chillers are available from the Baltimore Parts Distribution Center PDC The card received from the PDC is programmed with the latest version of the chiller operating program Program cards can be re prog...

Page 258: ...dentifies the chiller model applicability language package and program revision level The version is as follows Figure 86 Card version nomenclature Download the program as follows 1 Remove power to OptiView Control Center 2 Reposition Microboard DIP switch SW1 position 4 to ON 3 Insert Program card into Microboard connector J26 4 Restore power to OptiView Control Center A white screen appears disp...

Page 259: ... procedure is in progress The microboard 7 segment LED Displays U25 and U26 display the steps of the programming process while they are in effect During the Erasing procedure Er displayed During the Programming procedure Pr is displayed During the Verifying procedure Ch is displayed At the completion of the re programming process if it is successful Flash Has Been Successfully Programmed is displa...

Page 260: ...Figure 87 Microboard 031 03630 007 Figure 88 Program card 031 03601 002 YK EP Style B Centrifugal Chiller 260 ...

Page 261: ...Figure 89 Microboard 031 03630 007 DC power supply test points LD22058 5 0V Load to Switch Baseboard 261 YK EP Style B Centrifugal Chiller ...

Page 262: ...oard lamp dimmer circuit 6 7 8 J6 BRIGHTNESS CONTROL OR N C BRIGHTNESS CONTROL WIPER BRIGHTNESS CONTROL TO BACKLIGHT INVERTER BOARD JP8 JP7 5 0 VDC 10 K LD22054 Note 1 J6 6 not connected N C to Backlight Inverter Board when display is manufactured by Sharp or NEC 2 The position of Program Jumpers JP7 and JP8 determine the output at J6 7 In Variable Voltage Out Variable Resistance Refer to Program ...

Page 263: ...CR15 CR38 R G CR35 R G CR43 CR44 R G YORK PROTOCOL STYLE B LCSSS VSD ADAPTIVE CAPACITY CONTROL BOARD OR HOT GAS BYPASS HEAT RECOVERY HEAD PRESSURE CONTROL MOTOR MONITORING LTC I O BOARD SC EQ Communication Card RS 485 COM 2 1 2 3 4 J13 12V TX2 RX2 CR37 CR40 R G GND MODBUS PROTOCOL MV VSD MV SSS VSD STYLE B LCSSS PRIMARY MOTOR CONTROLLER RS 485 COM 6 1 2 3 4 TB2 12V TX6 RX6 CR46 CR48 R G GND MODBUS...

Page 264: ...chillers note 2 24 VAC 2 4 1 3 LD22055 Note 1 Program Jumpers JP23 JP24 must be positioned on pins 1 2 or 2 3 according to input signal type Voltage OUT Current 1 2 2 3 Not Used 2 On new production chillers prior to June 2009 the Thermal type ﬂow sensors are connected to Microboard J7 as shown above Program Jumpers JP21 and JP22 must be on pins 2 3 On new production chillers after June 2009 the Th...

Page 265: ...4 2 13 15 MUX 47K JP21 JP22 JP23 JP24 200 7 5 K 1 2 3 1 2 3 1 2 3 1 2 3 71 5 K 5V 3 17 5V J7 J22 0 10 VDC 2 10 VDC 0 20 mA 4 20 mA LEAVING CHILLED LIQUID TEMPRERATURE THERMISTOR LD22056 Note 1 Program Jumper JP21 must be positioned on pins 2 3 Thermal type Evaporator flow sensor for chillers produced before June 2009 and Leaving Chilled Liquid Temperature sensor for Heat Pump Duty chillers 265 YK ...

Page 266: ...d Evaporator Thermal Type Flow Sensor note 1 3 2 4 2 4 2 4 1 24VAC Factory Mounted Condenser Thermal Type Flow Sensor note 1 3 1 24VAC Factory Mounted Heating Condenser Thermal Type Flow Sensor note 1 3 1 Not Used LD22057 YK EP Style B Centrifugal Chiller 266 ...

Page 267: ...d J14 as shown above Program Jumpers JP10 through JP12 must be positioned on pins 2 3 and software version C OPT 01 21 307 and later is required On new production chillers prior to June 2009 the Thermal type ﬂow sensors are connected to Microboard J7 Refer to Figure 92 267 YK EP Style B Centrifugal Chiller ...

Page 268: ...eters mm Weight Pounds lbs 0 4536 Kilograms kg Velocity Feet Second fps 0 3048 Meters Second m s Feet of Water ft 2 989 Kilopascals kPa Pressure drop Pounds Square inch psi 6 895 Kilopascals kPa Temperature To convert degrees Fahrenheit F to degrees Celsius C subtract 32 and multiply by 5 9 or 0 5556 Example 45 0 F 32 x 0 5556 7 22 C To convert a temperature range i e a range of 10 F from Fahrenhe...

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