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FORM 160.55-O1 (604)

YORK INTERNATIONAL

[Refrigerant Level Control] Proportional
Limit Close

Service Technicians refer to YORK Service Manual
160.55-M1.

[Refrigerant Level Control] Rate Limit Open

Service Technicians refer to YORK Service Manual
160.55-M1.

[Refrigerant Level Control] Rate Limit Close

Service Technicians refer to YORK Service Manual
160.55-M1.

[Refrigerant Level Control] Raise (Man u al)

This key puts the level control into manual mode and
sends a

RAISE

command to the variable ori

ce.

[Refrigerant Level Control] Lower (Manual)

This key puts the level control into manual mode and
sends a

LOWER

command to the variable ori

ce.

[Refrigerant Level Control] Hold (Manual)

This key puts the level control into manual mode and
sends a

HOLD

command to the variable ori

ce.

[Refrigerant Level Control] Auto

Returns the Level Control to automatic mode.

NAVIGATION

Home

Ac cess Level Re quired:

VIEW

Causes an instant return to the Home Screen.

Condenser

Ac cess Level Re quired:

VIEW

Return to the Condenser Screen.

Содержание R123

Страница 1: ...LLENNIUM CENTRIFUGAL LIQUID CHILLERS Supersedes 160 55 O1 402 Form 160 55 O1 604 MODEL YT STYLE J R123 COOLING ONLY WITH OPTIVIEW CONTROL CENTER FOR ELECTRO MECHANICAL STARTER SOLID STATE STARTER VARI...

Страница 2: ...YORK INTERNATIONAL 2 FORM 160 55 O1 604...

Страница 3: ...aterials This individual shall also be familiar with and comply with all applicable governmental standards and regulations pertaining to the task in question SAFETY SYMBOLS The following symbols are u...

Страница 4: ...they should verify with the owner whether the equipment has been modi ed and if current literature is available REFERENCE INSTRUCTIONS DESCRIPTION FORM NO SOLID STATE STARTER MOD A OPERATION MAINTENA...

Страница 5: ...Control Center 9 SECTION 3 Printers 112 SECTION 4 System Operating Procedures 124 SECTION 5 System Components Description 131 SECTION 6 Operational Maintenance 135 SECTION 7 Troubleshooting 138 SECTIO...

Страница 6: ...CREEN 68 FIG 30 PRINTER SCREEN 70 FIG 31 SALES ORDER SCREEN 72 FIG 32 OPERATIONS SCREEN 74 FIG 33 HISTORY SCREEN 76 FIG 34 HISTORY DETAILS SCREEN 78 FIG 35 SECURITY LOG SCREEN 79 FIG 36 SECURITY LOG D...

Страница 7: ...the condenser into the liquid return line where the vari SECTION 1 DESCRIPTION OF SYSTEM AND FUNDAMENTALS OF OPERATION 29509A CONDENSER CONTROL CENTER COMPRESSOR MOTOR COOLER FIG 1 MODEL YT MILLENNIU...

Страница 8: ...ACITY CONTROL The major components of a chiller are selected for full load capacities therefore capacity must be controlled to maintain a constant chilled liquid temperature leav ing the cooler Prerot...

Страница 9: ...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 detail in YORK Service Manual 160 55 M1 These par...

Страница 10: ...the respective revision level increments C Commercial chiller MLM Used on Microboard 031 01730 000 OPT Used on Microboard 031 02430 000 02 YT chiller xx controls revision level 00 01 etc y language p...

Страница 11: ...FORM 160 55 O1 604 11 YORK INTERNATIONAL THIS PAGE INTENTIONALLY LEFT BLANK TO MAINTAIN FORMAT...

Страница 12: ...Center display is highlighted by a full screen graphics display This display is nested within a standard keypad and is surrounded by soft keys which are rede ned based on the currently displayed scre...

Страница 13: ...s with an Access Level of VIEW This will allow the user to navi gate to most screens and observe the values displayed there However the user will not be allowed to change any values To change any valu...

Страница 14: ...NAVIGATION In order to maximize the amount of values which the panel can display to the user and in order to place those values in context multiple screens have been designed to describe the chiller o...

Страница 15: ...F 7 2 107 9 C Oil Temperature 19 0 226 3 F 7 2 107 9 C Condenser Pressure 2 5 35 3 PSIA 17 2 243 4 KPAA Condenser Temperature R11 1 4 124 2 F 18 5 51 2 C Condenser Temperature R123 7 2 130 1 F 13 7 5...

Страница 16: ...ly if the chiller system is utilizing a Vari able Speed Drive motor controller or Mod B Solid State Starter This displays the total input power used by the system Full Load Amps This displays the perc...

Страница 17: ...y Control Details screen Message Clear Access Level Required SERVICE When certain safety or cycling conditions have been detected and the chiller has been shutdown the main status display of the chill...

Страница 18: ...a locally programmed value in local mode Evaporator Pressure Displays the present refrigerant pressure in the evaporator Evaporator Saturation Temperature Displays the present saturation temperature i...

Страница 19: ...his value could come from a 0 20mAor 4 20mA 0 10VDC or 2 10VDC input in Analog Remote mode PWM signal in Digital Remote mode MicroGateway interface in ISN mode or a locally programmed value PROGRAMMAB...

Страница 20: ...rator Evaporator Refrigerant Temperature Displays the temperature of the refrigerant in the evapo rator if the sensor is present Small Temperature Difference Displays the difference between the Leavin...

Страница 21: ...F below the setpoint to a minimum cutout of 36 F water 34 F water with Smart Freeze enabled or 6 F brine It establishes the minimum allowable temperature for the Leaving Chilled Liquid Temperature and...

Страница 22: ...e The Condenser Refrigerant temperature will be represented by the Condenser Saturation tem perature Drop Leg Refrigerant Temperature Displays the temperature of the refrigerant in the drop leg betwee...

Страница 23: ...CE This value allows the user to de ne the condenser pres sure at which the chiller will initiate a warning Drop Leg Enabled Disabled Access Level Required SERVICE When a Drop Leg Refrigerant Sensor h...

Страница 24: ...zed at 34 7 PSIA and de energized when the pressure decreases to 29 7 PSIA Top Float Switch LED Illuminated when the Top Float Switch is closed indicating the Purge Tank oil level is less than full Ex...

Страница 25: ...PROGRAMMABLE High Efficiency Purge System Enabled Disabled Access Level Required SERVICE Selects the appropriate control and purge exhaust thresholds for the installed purge system High Ef ciency pump...

Страница 26: ...w of the condenser When the actual level is 0 to 15 the level is shown about 50 full When the actual level is 16 to 31 the level is shown about 60 full When the actual level is 32 to 47 the level is s...

Страница 27: ...key puts the level control into manual mode and sends a RAISE command to the variable ori ce Refrigerant Level Control Lower Manual This key puts the level control into manual mode and sends a LOWER...

Страница 28: ...ay eld will show XX X Oil Sump Temperature Displays the temperature of the oil in the sump Discharge Temperature Displays the temperature of the refrigerant in its gaseous state at discharge of the co...

Страница 29: ...l Required VIEW Causes an instant return to the Home Screen Pre Rotation Vane Calibration Access Level Required SERVICE Only available if the chiller is stopped and the system uses a Variable Speed Dr...

Страница 30: ...an 79 shown as full open Pre rotation Vanes Position Displays the position of the Pre Rotation Vanes over the range of 0 closed to 100 fully open Displayed at XXX until calibration procedure is perfor...

Страница 31: ...arlier On SURGE PROTECTION Screen in later Flash Memory Card versions Service technicians refer to YORK Service Manual 160 55 M1 Minimum Load Service technicians refer to YORK Service Manual 160 55 M1...

Страница 32: ...oc SURGE PROTECTION SCREEN curred in the last 1 to 5 minutes as programmed with the COUNT WINDOW setpoint If the chiller has been running for less than the COUNTWINDOW minutes it is the number of surg...

Страница 33: ...UNT exceeds the COUNT LIMIT at the completion of this period a safety shutdown is performed and Surge Protection Excess Surge is displayed If the Hot Gas Bypassed control is Enabled the Hot Gas Bypass...

Страница 34: ...E WINDOW COUNT exceeds the COUNT LIMIT at the completon of the 10 minute extended run period a safety shutdown is performed and Surge Protection Excess Surge is displayed See Hot Gas Bypass andVariabl...

Страница 35: ...FORM 160 55 O1 604 35 YORK INTERNATIONAL THIS PAGE INTENTIONALLY LEFT BLANK TO MAINTAIN FORMAT 2...

Страница 36: ...s 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 Hot Gas PRV...

Страница 37: ...FORM 160 55 O1 604 37 YORK INTERNATIONAL THIS PAGE INTENTIONALLY LEFT BLANK TO MAINTAIN FORMAT 2...

Страница 38: ...ble Speed Drive Temperature Differential Displays the differential between the Leaving Chilled Liquid Temperature and Setpoint Delta P P Displays a value based on the pressure differential between the...

Страница 39: ...control into manual mode and increases the present command frequency by the de ned frequency increment It will not raise the value above the maximum allowed frequency Decrease This key puts the VSD fr...

Страница 40: ...Run Output LED Indicates whether the Oil Pump is being commanded to operate Manual Oil Pump Operation Time Left Displays the time remaining in the 10 minute manual oil pump operation described below P...

Страница 41: ...non zero PROGRAMMABLE Local Motor Current Limit Access Level Required OPERATOR Allows the user to specify the maximum allowed mo tor current as a percentage of FLA When the motor current reaches this...

Страница 42: ...Starter Rating and the maximum allowed Full Load Amps Voltage Phase A B C Display the 3 phase input line voltage values being read from the Solid State Starter Current Phase A B C Display the 3 phase...

Страница 43: ...cess Level Required SERVICE Allows the user to select a speci c voltage range for volt age checking When not disabled this line voltage range is used to determine a low line and high line voltage thre...

Страница 44: ...n period 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...

Страница 45: ...high line volt age threshold for initiating a shutdown Service Techni cians refer to YORK Service Manual 160 55 M1 Starting Current Access Level Required SERVICE De nes the maximum allowed motor star...

Страница 46: ...d if the value is non zero Output Voltage Displays the output voltage measured to the motor Output Frequency Displays the present output frequency to the motor Output Current Phase A B C Displays the...

Страница 47: ...nergy savings following chiller start up Pulldown Demand Time Access Level Required OPERATOR Allows the user to set a period of time for which the pulldown demand limit will be in effect after the chi...

Страница 48: ...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 20mA 4 20mA 0 10VDC or...

Страница 49: ...owed mo tor 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 ro...

Страница 50: ...by the VSD Logic board Current Limit Setpoint Displays the current limit value in use This value could come from a 0 20mA 4 20mA 0 10VDC or 2 10VDC input in Analog Remote mode PWM signal in Digital Re...

Страница 51: ...age 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 reduc...

Страница 52: ...tal Remote mode MicroGateway interface in ISN mode or a locally programmed value Pulldown Demand Time Left Displays the time remaining in the programmed pull down period if the value is non zero VSD O...

Страница 53: ...gin at which these adjustments will begin to take place Manual Surge Point This key will force the ACC to map a surge detection at the present operating conditions Mapping a point at these conditions...

Страница 54: ...rom a 0 20mA 4 20mA 0 10VDC or 2 10VDC input in Analog Remote mode PWM signal in Digital Remote mode MicroGateway interface in ISN mode or a locally programmed value Pulldown Demand Time Left Displays...

Страница 55: ...E Local Motor Current Limit Access Level Required OPERATOR Allows the user to specify the maximum allowed mo tor current as a percentage of FLA When the motor current reaches this value the pre rotati...

Страница 56: ...ateway interface in ISN mode or a locally programmed value Pulldown Demand Time Left Displays the time remaining in the programmed pull down period if the value is non zero Operating Mode Run Stop Ind...

Страница 57: ...the maximum allowed mo tor 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...

Страница 58: ...eatwhich the chiller will restart after it has shut down due to over cooling temperature This value is calculated by adding the Leaving Chilled Liquid Temperature Cycling Offset Restart to the Leaving...

Страница 59: ...hilled Liquid Temperature Cycling Offset Restart Access Level Required OPERATOR This value allows the user to specify the Leaving Chilled Liquid Temperature at which the chiller will restart after a s...

Страница 60: ...o serves as a gateway to more subscreens for de ning general system parameters DISPLAY ONLY 031 01730 000 Microboard Chilled Liquid Pump Operation Displays Standard or Enhanced Motor Type Displays Fix...

Страница 61: ...will include the AM and PM modi ers and show the range of time between 1 00 and 12 59 while the 24 Hour time format will show the range of time between 0 00 and 23 59 031 02430 000 Microboard only Cha...

Страница 62: ...Moves to the subscreen allowing con guration of system communications Printer Access Level Required VIEW Moves to the subscreen allowing con guration and control of printer functions Sales Order Acce...

Страница 63: ...FORM 160 55 O1 604 63 YORK INTERNATIONAL THIS PAGE INTENTIONALLY LEFT BLANK TO MAINTAIN FORMAT 2...

Страница 64: ...p times which are utilized every week The user may then specify exception Start Stop combinations for any day of the week up to 6 weeks in advance At the end of each week the schedule for the next wee...

Страница 65: ...red OPERATOR Deletes all programming for exception days within the next 6 weeks Select Access Level Required OPERATOR Places a selection box around a start time for a given day Use or cursor arrows to...

Страница 66: ...USER Screen to another Screen English Metric Units Access Level Required OPERATOR De ne the unit system English or Metric used by the chiller display Custom User ID 4 Access Level Required SERVICE Th...

Страница 67: ...FORM 160 55 O1 604 67 YORK INTERNATIONAL 2 THIS PAGE INTENTIONALLY LEFT BLANK TO MAINTAIN FORMAT...

Страница 68: ...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 perm...

Страница 69: ...Stop Bit s De ne the number of stop bits at which the panel shall communicate through the modem port NAVIGATION Home Access Level Required VIEW Causes an instant return to the Home Screen Setup Acces...

Страница 70: ...l Required SERVICE Only available if the chiller system utilizes a Variable Speed Drive motor controller The chiller monitors the ACC communications and when a surge point is mapped a short report of...

Страница 71: ...FORM 160 55 O1 604 71 YORK INTERNATIONAL NAVIGATION Home Access Level Required VIEW Causes an instant return to the Home Screen Setup Access Level Required VIEW Return to the Setup Screen 2...

Страница 72: ...Order Number Factory de ned order number under which the chiller was sold System Information Factory de ned conditions for which the chiller was originally rated and sold Condenser and Evaporator Des...

Страница 73: ...FORM 160 55 O1 604 73 YORK INTERNATIONAL THIS PAGE INTENTIONALLY LEFT BLANK TO MAINTAIN FORMAT 2...

Страница 74: ...ours Access Level Required ADMIN Displays the total accumulated run time of the chiller This may be reprogrammed to a desired value generally when this value has been reset due to a Microboard re plac...

Страница 75: ...FORM 160 55 O1 604 75 YORK INTERNATIONAL 2 NAVIGATION Home Access Level Required VIEW Causes an instant return to the Home Screen Setup Access Level Required VIEW Return to the Setup Screen...

Страница 76: ...e Digital Analog or ISN Last Fault While Running This window displays the date and time and the de scription of the last safety or cycling shutdown while the system was running Last Ten Faults This wi...

Страница 77: ...parameters Custom View Flash memory Card version C MLM 02 01 or later Access Level required VIEW Causes a move to a sub screen allowing the user to view the Custom Setup Screen Security Log Flash Memo...

Страница 78: ...ut This is the on screen printout of the system parame ters PROGRAMMABLE Page Up Access Level Required VIEW Scroll up in the displayed data if applicable Page Down Access Level Required VIEW Scroll do...

Страница 79: ...porator condenser etc Setpoint Displays the setpoint that was changed New Value Displays the value that was entered at the time of the setpoint change PROGRAMMABLE Log Entry Allows the user to select...

Страница 80: ...login access level of SERVICE DISPLAY ONLY Description Displays the setpoint category that was changed Time Displays the time the setpoint was changed Date Displays the date the setpoint was changed...

Страница 81: ...urity Log Access Level Required SERVICE Causes an instant return to the Security Log Screen View Details Access Level Required SERVICE Causes a move to a sub screen containing the details of the setpo...

Страница 82: ...the sampled parameter is less than theY Axis label minimum for that parameter the value will be plotted at the minimum value Simi larly if the actual value is greater than the Y Axis label maximum fo...

Страница 83: ...display all trended data points simul taneously or select a single trended data point for display hiding the other data points Selections are ALL DATA or DATA POINT X 1 6 Print Flash Memory Card versi...

Страница 84: ...the DATA COLLECTION INTERVALor the interval at which the parameter is sampled This interval is programmable over the range of 1 second to 3600 seconds 1 hour in one second increments The selected inte...

Страница 85: ...parameter selected for this data point is a digital type on off this value must be set to zero 0 Zero indicates the OFF state Data Point Max 1 6 Access Level Required OPERATOR Only displayed if the as...

Страница 86: ...elected Trigger delay per the selected Trigger Action ASecondary Trigger can be evaluated with the Primary Trigger to start stop data collection The Primary to Sec ondary Operator is used to de ne the...

Страница 87: ...ter the triggers evaluate as true and the delay timer has elapsed If the Trigger Action is set to Stop data collection will stop after the Triggers evaluate as true and the delay timer has elapsed Pri...

Страница 88: ...bers into Data Points 1 through 6 Requires a login access level of OPERATOR or higher DISPLAY ONLY Slot Numbers These are the slot numbers of the most commonly used parameters PROGRAMMABLE Page Down A...

Страница 89: ...ing At completion of the service call the display can be cleared or the parameters can be left there for monitor ing by operations personnel DISPLAY ONLY None PROGRAMMABLE Print Access Level Required...

Страница 90: ...the number of the parameter s 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...

Страница 91: ...re 1538 Oil Pump Control Mode 1539 Oil Pump Is Pump On 1540 Oil Pump Manual Time Left SLOT NO DESCRIPTION 1792 Leaving Chilled Liquid Temperature 1793 Leaving Chilled Liquid Temperature Differential 1...

Страница 92: ...5 LcSss Is Serial Communications OK 2586 LcSss Panel to Sss Comm Errors 2587 LcSss Sss to Panel Comm Errors SLOT NO DESCRIPTION 2816 VSD Motor HP 2817 VSD 100 Full Load Amps 2818 VSD Input Power 2819...

Страница 93: ...rmonic Distortion 2891 Filter Maximum Total Demand Distortion 2 SLOT NO DESCRIPTION 8205 Refrigerant Level Is Control Enabled 8206 Refrigerant Level Position 8207 Refrigerant Level Is Valve Closing 82...

Страница 94: ...r has shut down and the Post run lubrication is being performed On electric motor drive applications the Postlube duration is 150 seconds On Steam Turbine applications it is 15 minutes The actual dura...

Страница 95: ...s that which was written to the device it is assumed the BRAM and Real time Clock operation is defective and this message is displayed The BRAM should be replaced by a quali ed Service Technician This...

Страница 96: ...de ThiswarningwillnotbedisplayedifthePurgeFloatSwitch Error warning below is in effect WARNING PURGE FLOATSWITCHERROR With the chiller running the Purge Float Switches were in invalid states Typically...

Страница 97: ...Digital Remote mode via I O Board TB4 7 8 or in ISN Integrated Systems Network Remote mode via the MicroGateway serial communications LOCAL STOP A local shutdown command has been received by plac ing...

Страница 98: ...t CM 2 Module Overload None Overload Phase Rotation Loss Solid State Starter High Temp 212 F High Temp start inhibit 110 F Fault Current Trigger Board Out of Lock MOTOR CONTROLLER LOSS OF CURRENT The...

Страница 99: ...s not yet received the cause of the fault from the LCSSS via the serial communications link The LCSSS shuts down the chiller by opening the Motor Controller LCSSS Stop Contacts K1 relay located on the...

Страница 100: ...in any phase exceeded the high line voltage threshold continuously for 20 seconds The chiller will automaticallyrestartwhenthevoltageinallphasesreturns to the restart level The thresholds are as follo...

Страница 101: ...Serial data communications must be established Refer to VSD Serial Communications fault If communications between the VSD Logic Board Harmonic Filter Logic Board ACC Board and Con trol Center Microbo...

Страница 102: ...point we suggest you back ush the heat exchanger by reversing the two rubber hoses which supply condenser water to from the heat exchanger If the rust cannot be back ushed the heat exchanger might hav...

Страница 103: ...r371 03789 xxx 503HP60Hz 419HP 50Hz Flash Memory Card version C MLM 02 04 xxx and later The chiller has shutdown because the baseplate tem perature has decreased to 37 F VSD LOW PHASE B INVERTER BASEP...

Страница 104: ...er this shutdown and continues to operate properly with the lter operating it is likely the lter tripped due to a sag or surge in the voltage feeding the VSD If this message reoccurs pre venting the c...

Страница 105: ...eze feature is not activated If Smart Freeze is activated and has initiated the shutdown Evaporator Low Pressure Smart Freeze is displayed as described next The evaporator pressure as sensed by the Ev...

Страница 106: ...or Evapo rator Saturation Temperature is indicating a tem perature of 32 0 F Flash Memory Card version C MLM 02 02 xxx and later The chiller can be started after the temperatures are within 3 0 F of...

Страница 107: ...can indicate a Cycling auto restart after power failure or Safety manual restart after power failure shutdown depending upon Control Center con guration It indicates a Cy cling shutdown when displayed...

Страница 108: ...e message has been detected by the Liquid Cooled Solid State Starter Logic Trigger Board The voltage across each SCR in monitored to detect the shorted condition The shorted condition must exist conti...

Страница 109: ...the primary of the heat exchanger for clogs and silt The chiller can be started after the fault condition clears the RESET button on the VSD Logic Board is pressed and the COMPRESSOR switch is placed...

Страница 110: ...d the COMPRESSOR switch is placed in the Stop reset O position HARMONIC FILTER HIGH BASEPLATE TEMPERATURE Applicable to VSD with part number 371 02767 XXX 60 Hz and 371 03700 XXX 50 Hz Requires Flash...

Страница 111: ...FORM 160 55 O1 604 111 YORK INTERNATIONAL THIS PAGE INTENTIONALLY LEFT BLANK TO MAINTAIN FORMAT 2...

Страница 112: ...YORK INTERNATIONAL 112 FORM 160 55 O1 604 SECTION 3 PRINTERS FIG 43 PRINTERS 23887A OKIDATA MICROLINE 184 23889A WEIGH TRONIX SEIKO DPU 414 00085VIP Printers...

Страница 113: ...similar but print parameters applicable to those devices Figure 44 Status Figure 45 Setpoints Figure 46 Schedule Figure 47 Sales Order Figure 48 History Figure 49 Security Log Flash Memory Card ver si...

Страница 114: ...hield Hardware required Cable 18 AWG stranded 50ft maximum length Connectors Microboard None Strip 1 4 insulation from wire and insert into screw terminal block Printers Okidata 25 pin plug DB 25P or...

Страница 115: ...on number to the chiller This number will appear at the top of each report Printer Setup Access Level Required OPERATOR or Higher Using the COMMS Screen the Control Center must be con gured to transmi...

Страница 116: ...If Drop Leg Sensor enabled Compressor Discharge Temperature 121 6 F Vent Line Solenoid On Oil Sump Oil Pump Run Output On Oil Pressure 30 7 Psid Oil Sump Temperature 137 9 F Skip the following section...

Страница 117: ...perature 88 F Converter Heatsink Temperature 102 F Phase A Heatsink Temperature 93 F Phase B Heatsink Temperature 99 F Phase C Heatsink Temperature 97 F Skip the following section if Motor Type is not...

Страница 118: ...orator Printers Leaving Chilled Local Setpoint 45 0 F Leaving Chilled ISN Setpoint 45 0 F Leaving Chilled Modem Setpoint 45 0 F Leaving Chilled Analog Setpoint 45 0 F Leaving Chilled Digital Setpoint...

Страница 119: ...ge Range Disabled Full Load Amps 215 A Starting Current 1460 A Open SCR Disabled Skip the following section if Motor Type is not VSD Variable Speed Drive Local Motor Current Limit 100 Remote ISN Curre...

Страница 120: ...0 00010 Pressure Drop 21 1 Nozzle Arrangement In 2 Nozzle Arrangement Out 3 Leaving Temperature 44 0 Return Temperature 56 0 GPM 1500 0 Tubes 181 Design Load condenser Passes 2 Design Working Pressure...

Страница 121: ...ensor enabled Compressor Discharge Temperature 121 6 F Vent Line Solenoid Off Oil Sump Oil Pump Run Output Off Oil Pressure 0 0 Psid Oil Sump Temperature 137 9 F Skip the following section if Hot Gas...

Страница 122: ...r Pump Output Off KW Hours 14528 KWH Input Power 150 KW Output Frequency 0 Hz Output Voltage 800 V DC Bus Voltage 600 V DC Inverter Link Current 300 A Phase A Output Current 0 A Phase B Output Current...

Страница 123: ...d Active Setpoint 45 0 F Leaving Chilled Liquid Temperature 50 0 F Return Chilled Liquid Temperature 59 3 F Leaving Condenser Liquid Temperature 85 0 F Return Condenser Liquid Temperature 94 9 F Evapo...

Страница 124: ...controlled and remains energized as long as the fused disconnect switch to the starter or Variable Speed Drive is energized CHECKING THE OIL LEVEL IN THE OIL RESERVOIR Proper operating oil level the...

Страница 125: ...s and also decreases the speed of the motor if equipped with a Variable Speed Drive to decrease chiller capacity When the chilled liquid temperature rises the actuator will open the prerotation vanes...

Страница 126: ...EN VENT SOLENOID CHECK OIL PRESS 150 SEC 2 5 MIN SYSTEM SHUTDOWN DISPLAY MESSAGE SYSTEM RUN SYSTEM PRELUBE OIL PUMP PRE RUN SYSTEM COASTDOWN OIL PUMP POST RUN 0 25 30 330 1800 0 4 0 5 5 5 30 START TIM...

Страница 127: ...ng oil pressure will vary with compressor suction and discharge pressures When a new system is rst operated under normal full load conditions the bearing oil pressure should be recorded as a reference...

Страница 128: ...arison with job design conditions This can be accomplished by pressing the EVAPORATOR key and the RE FRIGERANT PRESSURES key 5 Check the condenser saturation temperature based upon condenser pressure...

Страница 129: ...conden sible gases and refrigerant from the top of the condenser expel the noncondensibles to the atmosphere and return the refrigerant to the system IMPORTANT The purge unit operates continuously whe...

Страница 130: ...g the system to stand for a long period of time During long idle periods the tightness of the system should be checked periodically 2 If freezing temperatures are encountered while the system is idle...

Страница 131: ...ion Overload overcurrent transformers CTs are furnished as listed below in motor terminal box as follows 5 CASING The casing is accessible with vertical circular joints and fabricated of close grain c...

Страница 132: ...YORK INTERNATIONAL 132 FORM 160 55 O1 604 FIG 59 SCHEMATIC DRAWING YT COMPRESSOR LUBRICATION SYSTEM LD03278 System Components Description...

Страница 133: ...the oil to be distributed through the passages by gravity ow thus providing nec essary lubrication during the compressor coastdown OIL PUMP For normal operation the oil pump should operate at all time...

Страница 134: ...or ef cient elimination of noncondensibles Intermediate steel tube supports are spaced at intervals of less than four feet REFRIGERANT FLOW CONTROL The ow con trol chamber is welded to the bottom of t...

Страница 135: ...ndenser gas line oil return line to rotor support and inlet end of dehy drator 2 Remove the dehydrator as follows Refer to Fig 58 a Remove connection on the inlet end of dehy drator b Place wrenches o...

Страница 136: ...YORK INTERNATIONAL 136 FORM 160 55 O1 604 Operational Maintenance LD00470 FIG 61 ASSEMBLY OF DEHYDRATOR...

Страница 137: ...oil cooler and oil lter This will lower the oil level in the reservoir It will then be necessary to add oil to bring the level back to the center of the upper sight glass The nominal oil charge for th...

Страница 138: ...Power Fault Autostart CM 2 Current Module or Solid State Starter Remote Stop Energy Management System MON Anti Recycle Anti Recycle 20 Min Left Timer MON 10 00 AM Low Evap Press Low Evap Pressure 5 4...

Страница 139: ...Will not start until 30 minute Will restart when time left 00 minutes Minimum time between successive compressor timer is timed out starts is 30 minutes To restart press compressor switch from See OP...

Страница 140: ...ch Switch Open MON 10 00 AM Starter Motor Current 15 for 10 Malfunction seconds with Control Center Detected not calling for motor to run MON 10 00 AM Program Initiated Autostart Microboard Reset Repl...

Страница 141: ...OptiView Control Center or switch of capacity board of Variable Speed Drive Press compressor STOP RESET switch and then Check motor starter operation Motor current value START switch greater than 15...

Страница 142: ...d Clean cooler tubes chilled water and refrigerant in the cooler greater than normal with normal discharge temperature Temperature of chilled water too low with Insufficient load for system capacity C...

Страница 143: ...treme bearing wear Inspect compressor originally started 9 SYMPTOM OIL RETURN SYSTEM CEASES TO RETURN AN OIL REFRIGERANT SAMPLE Oil refrigerant return not functioning Filter drier in oil return system...

Страница 144: ...any leaks too small to be found by the soap test Do not use excessive amounts of R 22 use only enough for proper leak detection To test with R 22 proceed as follows 1 With no pressure in the system ch...

Страница 145: ...122 6 3 6 300 40 29 72 099 5 5 000 35 WATER 29 842 039 2 2 000 15 FREEZES 29 882 019 1 0 1 000 1 29 901 010 5 500 11 29 917 002 1 100 38 29 919 001 05 50 50 29 9206 0002 01 10 70 29 921 0 0 0 One stan...

Страница 146: ...YDRATION To obtain a suf ciently dry system the following in structions have been assembled to provide an effective method for evacuating and dehydrating a system in the eld Although there are several...

Страница 147: ...e pulled down to 35 F or 5mm Hg in the primary evacuation During the primary pulldown keep a careful watch on the wet bulb indicator temperature and do not let it fall below 35 F If the temperature is...

Страница 148: ...rant 123 boils at 82 F under atmospheric pressure it will not be necessary to remove the refrig erant if the system it to be open for only a few hours Any part of the system which is above the liquid...

Страница 149: ...ce of the water cooler is due to fouled tubes alone or due to a combination of troubles Trouble which may be due to fouled tubes is indicated when over a period of time the cooling capacity de creases...

Страница 150: ...ERNATIONAL 150 FORM 160 55 O1 604 LD00476 TEMPERATURE F MEGOHMS FIG 66 MOTOR STATOR TEMPERATURE AND INSULATION RESISTANCES Minimum Insulation Resistance vs Temperature per IEEE Std 43 Open Motors Main...

Страница 151: ...ting and corrosion If a tube leak is indicated the exact location of the leak may be determined as follows 1 Allow the system to warm up until a substantial pressure is reached for testing Dry nitroge...

Страница 152: ...he oil filter should be replaced semi annually or when the operating oil pressure drops 30 from the oil pressure measured at the time of the previous replacement COMPRESSOR MOTOR 1 Check motor mountin...

Страница 153: ...Months 1 Change the purge unit dehydrator a If the unit is operating 1 When the purge unit is in the drain cycle close the valve in the high pressure oil sup ply line and allow the unit to complete t...

Страница 154: ...the energy consumption of a constant speed drive and subtracting the measured energy consumption of the variable speed drive The resulting difference is the energy savings This data is displayed but d...

Страница 155: ...FORM 160 55 O1 604 155 YORK INTERNATIONAL NOTES...

Страница 156: ...york com P O Box 1592 York Pennsylvania USA 17405 1592 Subject to change without notice Printed in USA Copyright by York International Corporation 2004 ALL RIGHTS RESERVED Form 160 55 O1 604 Supersed...

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