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JOHNSON CONTROLS

69

FORM 160.72-O1 (810)

overvieW

This screen allows definition of the necessary commu-

nications parameters for the printer.

displaY onlY
Time remaining until next print

Displays the time until the next print log will occur, if

the function is enabled.

prograMMaBle
log start Time

Access Level Required: OPERATOR

Set the time at which scheduled print togs will begin.

output interval

Access Level Required: OPERATOR

Define the interval at which log printing will occur.

prinTer sCreen

PRINTER SCREEN

figure 26 -

automatic printer logging (enabled / disabled)

Access Level Required: OPERATOR

Enable the printer to begin printing status reports be-

ginning at the programmed start time and recurring at

the interval defined above.

printer Type

Access Level Required: OPERATOR

Define the printer type connected to the chiller system.

print report

Access Level Required: OPERATOR

Select the report type to print when the PRINT RE-

PORT 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 Order

screen). A print report is generated upon completion of

selection.

3

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Содержание YORK OM Titan

Страница 1: ...Titan Multistage Chiller With Retrofit Optiview Control Center Kit and Electro Mechanical Starter OM Titan Multi Stage Chiller OPERATING INSTRUCTIONS NEW RELEASE Form 160 72 O1 810...

Страница 2: ...ividual shall also be familiar with and comply with all applicable governmental standards and regula tions pertaining to the task in question SAFETY SYMBOLS The following symbols are used in this docu...

Страница 3: ...up date or provide current information automatically to the manual owner that information if applicable can be obtained by contacting the nearest Johnson Controls Service office Operating service per...

Страница 4: ...FORM 160 72 O1 810 JOHNSON CONTROLS 4 This Page Intentionally Left Blank...

Страница 5: ...points Screen 53 Pressure Setpoints Screen 55 Time Setpoints Screen 57 Miscellaneous Setpoints Screen 59 Setup Screen 61 Configuration Screen 63 User Screen 65 Comms Screen 67 Printer Screen 69 Sales...

Страница 6: ...Figure 24 User Screen 65 Figure 25 Comms Screen 67 Figure 26 Printer Screen 69 Figure 27 Sales Order Screen 71 Figure 28 Operations Screen 73 Figure 29 Options Screen 75 Figure 31 Drive Options Screen...

Страница 7: ...tenance of this system be provided with a copy of this manual so that they may thoroughly study its contents This will help ensure successful op eration of the system Standard Johnson Controls operati...

Страница 8: ...FORM 160 72 O1 810 JOHNSON CONTROLS 8 SECTION 1 INTRODUCTION This Page Intentionally Left Blank...

Страница 9: ...otor via a speed increasing gearbox a direct drive steam turbine a gas turbine via a speed reduc ing gearbox or a reciprocating gas engine via a speed increasing gearbox OM Subcooling Description and...

Страница 10: ...ell located near the float valve is used for checking liquid temperatures A manway with sight glasses allows for access to the float valve assembly and adjusting arm Operation Liquid refrigerant leavi...

Страница 11: ...s displayed values program mable setpoints and manual control shown in this man ual that are for Service Technician use only They are only displayed when logged in at SERVICE access level or higher Th...

Страница 12: ...FORM 160 72 O1 810 JOHNSON CONTROLS 12 SECTION 3 OPTIVIEW CONTROL CENTER This Page Intentionally Left Blank...

Страница 13: ...ded as a uni versal Enter key or Accept symbol In order to reject entry of a setpoint or dismiss an entry form the X key is provided as a uni versal Cancel symbol Cursor Arrow keys are pro vided to al...

Страница 14: ...bol if it is below the normal operating range the low limit value will be displayed along with the symbol In some cases the value may be ren dered invalid by other conditions and the display will use...

Страница 15: ...of range the value will not be accepted and the user is prompted to try again Manual Controls Some keys are used to perform manual control func tions These may involve manual control of items such as...

Страница 16: ...age 53 Pressure Setpoints Screen page 55 Time Setpoints Screen page 57 Miscellaneous Setpoints Screen page 59 Setup Screen page 61 Configuration Screen page 63 User Screen page 65 Comms Screen page 67...

Страница 17: ...ssor Thrust Bearing Oil Return Temperature 30 250 F Compressor Oil Cooler Entering Water Temperature 30 130 F Compressor Oil Cooler Leaving Water Temperature 30 130 F Intercooler Refrigerant Liquid Te...

Страница 18: ...0 F Gear Shaft Pump Oil Pressure 0 100 PSIG Gear Hi Speed Shaft End Bearing Temperature 30 250 F Gear Hi Speed Blind End Bearing Temperature 30 250 F Gear Lo Speed Shaft End Bearing Temperature 30 250...

Страница 19: ...emperature of the liquid as it leaves the evaporator Chilled Liquid Temperature Return Displays the temperature of the liquid as it enters the evaporator Condenser Liquid Temperature Leaving Displays...

Страница 20: ...w 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 chiller will continue to dis...

Страница 21: ...present saturation temperature in the con denser Chilled Liquid Temperature Leaving Displays the temperature of the liquid as it leaves the evaporator Chilled Liquid Temperature Return Displays the te...

Страница 22: ...side oil pressure transducer output of oil filter and the low side oil pressure transducer sump compressor housing If either of the transducers used to calculate this differential is out of range the...

Страница 23: ...y the Refrigerant Temperature sensor input if the sensor is present otherwise it will be represented by the Evaporator Saturation temperature Evaporator Screen Evaporator Screen Figure 4 Evaporator Pr...

Страница 24: ...10 0 F or 20 0 F above the Base setpoint see the Remote Leaving Chilled Liquid Tem perature Setpoint Range description above Addition ally the E Link gateway in BAS Remote mode can define the setpoint...

Страница 25: ...of 0 F to 70 F above the setpoint to a maximum restart value of 80 F The chiller will automatically re start when this temperature is reached This setpoint can be used to reduce chiller cycling by de...

Страница 26: ...FORM 160 72 O1 810 JOHNSON CONTROLS 26 Evaporator Screen This Page Intentionally Left Blank...

Страница 27: ...ondenser Saturation tem perature Condenser Screen Condenser Screen Figure 5 Condenser Pressure Displays the refrigerant pressure in the condenser Condenser Refrigerant Temperature Displays the tempera...

Страница 28: ...ult is present Condenser Liquid Flow Switch Open Closed Indicates whether flow is present in the condenser Condenser Liquid Pump Run Off Indicates whether Condenser Liquid Pump is operating Condenser...

Страница 29: ...p time will begin counting at the end of the Pulldown Time Remaining During the ramp time the level control valve will move from its start position to control position Zone State Displays the state of...

Страница 30: ...vel Control Valve Lower Manual Access Level Required SERVICE This key allows the Service Technician to close the valve in increments of 1 or more from its current po sition Level Control Valve Set Man...

Страница 31: ...used to calculate this differential is out of range the display field will show XX X Main Oil Temperature Displays the temperature of the main oil supply feed ing the compressor bearings Compressor S...

Страница 32: ...put a spe cific value from 0 to 100 to position the valve Pre Rotation Vanes Switch to Manual Access Level Required SERVICE This key toggles between Switch to Manual and Switch to Auto to allow for co...

Страница 33: ...Shaft Pump Discharge pressure transducer and the Post Fil ter Pressure transducer in the oil line after the filter Compressor Lubrication Screen Compressor Lubrication Screen Figure 8 Post Filter Pre...

Страница 34: ...the status of the interlock signal from the Aux iliary Oil Pump if available Oil Pump Run Output LED Indicates whether the Oil Pump is being commanded to operate Oil Heater LED Indicates whether the O...

Страница 35: ...wn 25 open When actual position is 40 to 59 the valve is shown 50 open When actual position is 60 to 79 the valve is shown as 75 open Positions greater than 79 are shown as full open Pre rotation Vane...

Страница 36: ...Level Required SERVICE This key allows the Service Technician to input a value from 0 to 100 to position the valve immediately Hot Gas Bypass Control Switch to Manual Access Level Required SERVICE Thi...

Страница 37: ...79 are shown as full open Intercooler Refrigerant Temperature Displays the present refrigerant temperature in the in tercooler If the sensor is present and enabled under Options on the Configuration...

Страница 38: ...Manual Access Level Required SERVICE This key allows the Service Technician to input a value from 0 to 100 to position the valve immediately Interstage Valve Control Switch to Manual Access Level Req...

Страница 39: ...Limit Setpoint Displays the current limit value in use This value could come from a 0 20mA 4 20mA 0 l0VDC or 2 10VDC input in Analog Remote mode PWM signal in Digital Motor Screen Motor Screen Figure...

Страница 40: ...the Kilowatts sensor has been enabled Service Technicians refer to the Service Instructions Form 160 72 M1 Local Demand Limit Access Level Required OPERATOR Allows the operator to change the Demand S...

Страница 41: ...isplays the temperature of the bearing at the shaft end of the high speed side of the gearbox if present and enabled High Speed Blind End Bearing Temperature Displays the temperature of the bearing at...

Страница 42: ...ool er if available Differential Pressure Displays the pressure drop in inches of water across the gear box oil cooler if available PROGRAMMABLE Manual Pump Access Level Required OPERATOR This key put...

Страница 43: ...Start Uptime Cold Start Recycle Time 2nd Start The time the motor must be given to cool down anti recycle after the second cold start attempt assuming the chiller has not run for the Cold Start Uptim...

Страница 44: ...el Required SERVICE Allows a qualified Service Technician to change any of the anti recycle setpoints shown above Refer to the Service Instructions Form 160 72 M1 NAVIGATION Home Access Level Required...

Страница 45: ...er Setpoint Override Limit Pressure at which the PRV s will begin to close to pre vent the chiller from tripping off or high condenser pressure Capacity Controls Screen Capacity Controls Screen Figure...

Страница 46: ...as Ratio Setpoint or Anti Surge value 1 Vane Position 2 Hot Gas Temperature Setpoint TemperatureatwhichtheHotGasvalvewillbegintoopen if the leaving chilled liquid goes below this setpoint HGV Ramp Dis...

Страница 47: ...dition one or two ramp rates are required for proper operation of certain devices PID Tuning Screen PID Tuning Screen Figure 15 Temperature Control Controls the Pre Rotation Vanes and the Hot Gas By p...

Страница 48: ...n instructions and explanation of all programmable setpoints and displayed values Change Setpoints Allows a qualified Service Technician to change any of the setpoints shown above Refer to the Service...

Страница 49: ...splayed See the Anti Surge setpoints section for a detailed ex planation Pre Rotation Vanes Displays the current PRV position Hot Gas Bypass Displays the current Hot Gas valve position Subcooler Level...

Страница 50: ...Access Level Required SERVICE This key allows the Service Technician to close the valve 1 from its current position Set Manual Access Level Required SERVICE This key allows the Service Technician to i...

Страница 51: ...um Startup Position The minimum position for the vanes at startup RRSP8 PRV Ramp Rate Rate in Percent per second the PRV s will open Override Off Delay Displays the time delay required for pressure ov...

Страница 52: ...FORM 160 72 O1 810 JOHNSON CONTROLS 52 Setpoints Screen This Page Intentionally Left Blank...

Страница 53: ...n automatic con trol of the Pre Rotation Vanes to maintain setpoint TSP3 Hot Gas Bypass Temperature Controller Displays the temperature offset for Hot Gas Valve op eration Temperature Setpoints Screen...

Страница 54: ...n Setup Access Level Required VIEW Returns to the Setup Screen Pressure Setpoints Access Level Required VIEW Moves directly to the Pressure Setpoints Screen Time Setpoints Access Level Required VIEW M...

Страница 55: ...il pump will be used for gearbox supply oil Compressor AOP Oil Pressure The minimum oil pressure that must be maintained below which the Auxiliary Oil pump will be used for compressor supply oil PROGR...

Страница 56: ...re Setpoints Access Level Required VIEW Moves directly to the Temperature Setpoints Screen Time Setpoints Access Level Required VIEW Moves directly to the Time Setpoints Screen Misc Alarms Trips Acces...

Страница 57: ...wn Delay Displays the delay time on startup before control of the subcooler level valve is initiated Time Setpoints Screen Time Setpoints Screen Figure 20 Interstage Valve Open Delay Displays the dela...

Страница 58: ...Requires access level of SERVICE Service Technicians refer to Service In structions Form 160 72 M1 for opera tion instructions and explanation of all programmable setpoints and displayed values Chang...

Страница 59: ...the anti surge PRV position Pre Rotation Vanes Minimum Startup Position The minimum position for the Pre Rotation vanes at startup Miscellaneous Setpoints Screen Miscellaneous Setpoints Screen Figure...

Страница 60: ...to the Setup Screen Temperature Setpoints Access Level Required VIEW Moves directly to the Temperature Setpoints Screen Pressure Setpoints Access Level Required VIEW Moves directly to the Pressure Set...

Страница 61: ...e is displayed Setup Screen SETUP Screen Figure 22 Leaving Chilled Liquid Temperature Cycling Restart Displays the Leaving Chilled Liquid Temperature at which the chiller will restart after it has shu...

Страница 62: ...the build ing 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 see below is enabl...

Страница 63: ...e 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 attempt Configuration Screen Confi...

Страница 64: ...ween 1 00 and 12 59 while the 24 Hour time format will show the range of time between 0 00 and 23 59 NAVIGATION Home Access Level Required VIEW Returns user to Home Screen Setup Access Level Required...

Страница 65: ...uage and is selected by pressing the key when the dialog box appears during the selection process The User Screen User Screen Figure 24 selected language will not be displayed until after the user nav...

Страница 66: ...ecify up to four 4 Cus tom User Access Levels Each Access Level will then require a corresponding Password and User ID Service Technicians refer to the Service Instructions Form 160 72 M1 NAVIGATION H...

Страница 67: ...ound the desired param eter to be changed With the selection box around the desired parameter press the ENTER key A dialog box is displayed permitting data entry Comms Screen Comms Screen Figure 25 Pr...

Страница 68: ...r of stop bits at which the panel shall communicate through the modem port NAVIGATION Home Access Level Required VIEW Returns user to Home Screen Configuration Access Level Required SERVICE Returns us...

Страница 69: ...c Printer Logging Enabled Disabled Access Level Required OPERATOR Enable the printer to begin printing status reports be ginning at the programmed start time and recurring at the interval defined abov...

Страница 70: ...l Histories Access Level Required OPERATOR Generate a report of the system data at the time of all stored shutdowns NAVIGATION Home Access Level Required VIEW Returns user to Home Screen Configuration...

Страница 71: ...chiller was sold Panel Serial Number Factory defined serial number for the micropanel Chiller Serial Number Factory defined serial number for the chiller system Sales Order Screen Sales Order Screen F...

Страница 72: ...e location City State Where the chiller is located Print Access Level Required VIEW Generates a listing of the Sales Order data NAVIGATION Home Access Level Required VIEW Returns user to Home Screen C...

Страница 73: ...starts the chiller has initi ated This may be reprogrammed to a desired value Operations Screen Operations Screen Figure 28 generally when this value has been reset due to a Microboard replacement but...

Страница 74: ...RM 160 72 O1 810 JOHNSON CONTROLS 74 Operations Screen NAVIGATION Home Access Level Required VIEW Returns user to Home Screen Configuration Access Level Required VIEW Return to the Configuration Scree...

Страница 75: ...so serves as a gateway to more subscreens for defining general system parameters DISPLAY ONLY Drive Type Displays Electric or Steam Liquid Type Displays Water or Brine Refrigerant Selection Displays R...

Страница 76: ...on existence of sensor PROGRAMMABLE Page Down Moves to the second screen of the Options Screen Change Setpoints Allows a qualified Service Technician to change any of the anti recycle setpoints shown...

Страница 77: ...sor Displays Disabled or Enabled Depending on existence of sensor Subcooler Refrigerant Sensor Displays Disabled or Enabled Depending on existence of sensor Options Screen CON T Options Screen CON T F...

Страница 78: ...FORM 160 72 O1 810 JOHNSON CONTROLS 78 Options Screen This Page Intentionally Left Blank...

Страница 79: ...n additional safety contact from starter in most cases is not required Motor Power KW Sensor Displays Disabled or Enabled Depending on existence of sensors Drive Options Screen Drive Options Screen Fi...

Страница 80: ...FORM 160 72 O1 810 JOHNSON CONTROLS 80 Drive Options Screen This Page Intentionally Left Blank...

Страница 81: ...h Bearing Temperature alarm and trip point for the Blind end of the high speed gear if the sensors are present and enabled Temperature Alarms and Trips Screen Temperature Alarms and Trips Screen Figur...

Страница 82: ...gh Oil Temperature trip point for the oil in the compressor housing PROGRAMMABLE Requires access level of SERVICE Service Technicians refer to the Service Instructions Form 160 72 M1 for opera tion in...

Страница 83: ...Temperature alarm and trip points for the evaporator Temperature Alarms and Trips Screen CON T Temperature Alarms and Trips Screen Figure 33 Shutdown Offset This value comes in operation when the low...

Страница 84: ...ess Level Required VIEW Returns to the Temperature Alarm and Trips Screen Pressure Alarms Trips Access Level Required VIEW Moves directly to the Pressure Alarms and Trips Screen Time Alarms Trips Acce...

Страница 85: ...plays the Evaporator Low Pressure alarm and trip points Pressure Alarms and Trips Screen Pressure Alarms and Trips Screen Figure 34 Condenser Liquid Low Differential Pressure Displays the Condenser Wa...

Страница 86: ...Set Trips Allows a qualified Service Technician to change any of the trip points shown above Refer to the Service Instructions Form 160 72 M1 NAVIGATION Home Access Level Required VIEW Returns user t...

Страница 87: ...ice Instructions Form 160 72 M1 for opera tion instructions and explanation of all programmable setpoints and displayed values PRESSURE ALARMS AND TRIPS SCREEN CON T Pressure Alarms and Trips Screen C...

Страница 88: ...larms Trips Access Level Required VIEW Moves directly to the Miscellaneous Alarms and Trips Screen Page Up Access Level Required VIEW Moves to the first screen of the Pressure Alarms and Trips Screen...

Страница 89: ...ime alarm point Auxiliary Oil Pump Interlock Delay Displays the Auxiliary Oil Pump Interlock Delay trip point if enabled Time Alarms and Trips Screen Time Alarms and Trips Screen Figure 36 Motor Inter...

Страница 90: ...vice Instructions Form 160 72 M1 Set Trips Allows a qualified Service Technician to change any of the trip points shown above Refer to the Service Instructions Form 160 72 M1 NAVIGATION Home Access Le...

Страница 91: ...ICE Service Technicians refer to the Service Instructions Form 160 72 M1 for opera tion instructions and explanation of all programmable setpoints and displayed values Miscellaneous Alarms and Trips S...

Страница 92: ...NTROLS 92 Miscellaneous Alarms and Trips Screen Misc Alarms Trips Access Level Required VIEW Moves directly to the Miscellaneous Alarms and Trips Screen Page Up Access Level Required VIEW Moves to the...

Страница 93: ...ISPLAY ONLY Last Normal Shutdown This window displays the date and time and the de scription of the last normal shutdown A normal shut down is defined as Local Panel rocker switch Remote Digital Analo...

Страница 94: ...sub screen allowing the user to view trending data on selected chiller parameters Custom View Access Level Required VIEW Moves user to a sub screen allowing the user to view the Custom Setup Screen Se...

Страница 95: ...ONLY History Printout This is the on screen printout of the system parameters PROGRAMMABLE Page Down Page Up Access Level Required VIEW Scroll up or down in the displayed data if applicable History D...

Страница 96: ...FORM 160 72 O1 810 JOHNSON CONTROLS 96 History Screen This Page Intentionally Left Blank...

Страница 97: ...aram eter the value will be plotted at the minimum value Similarly if the actual value is greater than the Y axis Trend Screen Trend Screen Figure 40 label maximum for that parameter the value will be...

Страница 98: ...ing is running Data Select Access Level required VIEW Allows the user to display all trended data points si multaneously or select a single trended data point for display hiding the other data points...

Страница 99: ...terval at which the parameters are sam pled There are 450 data points displayed across the X axis of the graph Each point represents the instan taneous value of the parameter The user selects the time...

Страница 100: ...rameter It can be changed to a value that provides a more appropriate resolution for the param eter being monitored To change use the SELECT key as described above and enter the desired value The valu...

Страница 101: ...ta Points 1 through 6 Requires a login access level of OPERA TOR or higher DISPLAY ONLY Slot Numbers These are the slot numbers of the most commonly used parameters PROGRAMMABLE Page Down Access Level...

Страница 102: ...FORM 160 72 O1 810 JOHNSON CONTROLS 102 Trend Common Slots Screen This Page Intentionally Left Blank...

Страница 103: ...rvice call the display can be cleared or the parameters can be left there for monitoring by operations personnel DISPLAY ONLY None PROGRAMMABLE Print Access Level Required VIEW This generates a listin...

Страница 104: ...FORM 160 72 O1 810 JOHNSON CONTROLS 104 Custom Screen This Page Intentionally Left Blank...

Страница 105: ...to scroll through the Slot Numbers list and note the number of the parameter s to be displayed Pressing the Select key places a green colored selection box around Cus tom Slot 1 If it is desired to ch...

Страница 106: ...160 72 O1 810 JOHNSON CONTROLS 106 Custom Setup Screen NAVIGATION Home Access Level Required VIEW Returns user to Home Screen Custom View Access Level Required SERVICE Returns user to Custom View Scr...

Страница 107: ...el of SERVICE DISPLAY ONLY Description Displays the setpoint category that was changed Time Displays the time the setpoint was changed Security Log Screen Security Log Screen Figure 45 Date Displays t...

Страница 108: ...60 72 O1 810 JOHNSON CONTROLS 108 Security Log Screen NAVIGATION Home Access Level Required SERVICE Returns user to Home Screen Security Log Access Level Required SERVICE Returns user to Security Log...

Страница 109: ...ss level of SERVICE DISPLAY ONLY Category Displays the category of the setpoint motor evapora tor condenser etc Setpoint Displays the setpoint that was changed Security Log Details Screen Security Log...

Страница 110: ...Home Access Level Required SERVICE Returns user to Home Screen History Access Level Required SERVICE Returns user to History Screen View Details Access Level Required SERVICE Moves user to a sub scree...

Страница 111: ...mpressor Oil Cooler Water DIP 1602 Compressor Sump Oil Temperature 1792 Leaving Chilled Liquid Temperature 1807 Return Chilled Liquid Temperature 1808 Evaporator Refrigerant Pressure 1812 Evaporator R...

Страница 112: ...n SYSTEM PRE LUBE A chiller start has been initiated and the pre start lu brication is being performed The Pre lube duration is configured by a qualified Service Technician during commissioning and wi...

Страница 113: ...mp is turned on This is generally indicative of a failure of the Motor Starter Control Center start circuits or motor current feedback circuits After the interlock signal is no longer detected a SYSTE...

Страница 114: ...opening This message automatically clears and the vanes are permitted to modulate open when the evapo rator pressure increases to the reset value WARNING EXTERNAL I O SERIAL COMMU NICATIONS Serial co...

Страница 115: ...the respective device and connected between TB6 16 and TB6 53 in the OptiView Control Center to initiate a shutdown Since there are several different faults that are monitored LED s on the respective...

Страница 116: ...e chilled liquid temp evapora tor saturated temp The difference should not be out side the range of 2 5 F to 25 0 F If the transducer and transmitter are accurate the evaporator saturated temperature...

Страница 117: ...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 COMPR...

Страница 118: ...FORM 160 72 O1 810 JOHNSON CONTROLS 118 SECTION 3 OPTIVIEW CONTROL CENTER This Page Intentionally Left Blank...

Страница 119: ...start position The switch is spring loaded to return to the run position Local vs Remote control of the start is established by the condition of the CON TROL SOURCE buttons on the OPERA TIONS Screen T...

Страница 120: ...p control logic the auxiliary motor driven oil pumps will be stopped Whenever the gearbox or compressor shaft pump oil pressure falls below the auxiliary oil pump control logic set ting the auxiliary...

Страница 121: ...losed to equalize the condenser pressure with the evaporator These actions are taken to re duce backspin of the compressor on shutdown If the chiller is shutdown by a stop command an or derly shutdown...

Страница 122: ...el The PRVs are used to throttle the refrigerant flow through the system as a means of controlling capacity in response to the leaving chilled water temperature If the leaving chilled water temperatur...

Страница 123: ...up to allow the subcooler level controller to establish a liquid level in the subcooler and then slowly opens until it reaches the position dictated by the capacity controls When the intercooler float...

Страница 124: ...occur that elevate the discharge pressure to near trip conditions To attempt to keep the chiller online the High Dis charge Pressure Override control will decrease its output signal when its setpoint...

Страница 125: ...e level at setpoint The control output signal is selected by signal selector SS five minutes after start up when the ramped valve control signal has decreased to equal the PID Instructions output sign...

Страница 126: ...art up The total ramp times for the PRV and Hot Gas Valves are also shown These values will change any time new ramp times are entered Override operation of temperature control Maximum Power Demand Li...

Страница 127: ...ercooler Refrigerant Pressure B HP A2 0 300 PSIG 4 20ma Condenser Pressure A2 0 200 PSIG 4 20ma Intercooler Refrigerant Pressure A LP A2 0 300 PSIG 4 20ma Compressor Main Shaft Oil Pressure A2 O 200 P...

Страница 128: ...ompressor Motor Starter Relay Chilled Liquid Flow Switch Gear Auxiliary Oil Pump Start Stop Hardwired High Condenser Pressure Switch ALM OPN Interstage A Liquid Injection Solenoid Hardwired Compressor...

Страница 129: ...lable analoG inputs deViCe desCription pass cT 1 2 3 compressor motor current Transformers lT 114 Subcooler refrigerant liquid level PT 111 Evaporator refrigerant Pressure PT 113 compressor Discharge...

Страница 130: ...ry Oil Pump Motor Starter Interlock MIR Compressor Motor Full Voltage Run Contacts MPD Compressor Motor Protection Device Contacts ZS 100A Vane Motor Switch analOg Outputs DEViCE DEsCriptiOn pass LY 1...

Страница 131: ..._____ per diem plus travel expenses will be made to Johnson Controls if services are required for longer than ______ consecutive normal hours or if repeated calls are required through no fault of YORk...

Страница 132: ...he setpoints are grouped under the display screen in which they appear The in dented screens are subscreens of the numbered screens and are accessed from the numbered screens If any of the setpoints h...

Страница 133: ...wever the setpoints listed here can be changed on this screen if desired This screen is used primarily as a central location from which most setpoints can be programmed If it is not desired to change...

Страница 134: ...r the operation of the hot gas by pass and liquid injection systems and oil return systems f Verify the compressor pre rotation vanes are closed to unload the motor during starting Chiller Starting an...

Страница 135: ...when released 11 If a building automation system BAS is uti lized to start and stop the chiller remotely via the System Cycling or Multi Unit Cycling con tacts these contacts must be closed A Cycling...

Страница 136: ...FORM 160 72 O1 810 JOHNSON CONTROLS 136 SECTION 5 SYSTEM COMMISSIONING This Page Intentionally Left Blank...

Страница 137: ...5 9 or 0 5556 Example 10 0 F range x 0 5556 5 6 C range SI Metric Conversion Table 7 Measurement Multiply English Unit By Factor To Obtain Metric Unit Capacity Tons Refrigerant Effect ton 3 516 Kilow...

Страница 138: ...861 1001 www york com P O Box 1592 York Pennsylvania USA 17405 1592 Subject to change without notice Printed in USA Copyright by Johnson Controls 2010 ALL RIGHTS RESERVED Form 160 72 O1 810 Supersedes...

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