Home

York 00497VIP User's Manual

1. BACKLIGHT ENABLE NOTE 1 GND 12 VDC NOTE 3 N 0 O LD06755 FIG 44 DISPLAY BACKLIGHT INVERTER BOARD 90 YORK INTERNATIONAL BACKLIGHT DISPLAY BACKLIGHT INVERTER BOARD FORM 50 40 OM2 KEYPAD REFER TO FIGURES 45 amp 46 The Keypad contains touch sensitive keys that allow the Operator to interface with the Control Center The Operator presses the keys to request the desired screens of information and enter System Setpoints The top layer of the Keypad contains embossed areas identifying the keys Under each embossed key area are two conductors one on top of the other separated by an air space The conductors are arranged in a matrix of rows and columns and connected to the Keypad connector as shown in Fig 46 The embossed area of each key is located directly over the intersection point of the conductors Pressing the embossed key area causes contact and electrical continuity between the two conductors For example pressing the 1 key creates continuity between the Keypad connector pin 5 column 3 and pin 13 row 4 Since this connector is interfaced to the Microboard J18 the Microboard senses this continuity as described below and concludes the 1 key 15 pressed The Microboard Program continuously scans the Keypad to determine if a key is pressed Beginning with row 1 and proceeding through all rows the Program places a logic low lt 1 VDC on a
2. Print ES b22 F FIG 10E YCWS CHILLER x Return Chilled Liu Tampar EXAMPLES Hame System Data Hours Starts Options Trending Leaving Chilled Liquid Temperat Seipoints 63 7 F p History 00573VIPC YORK INTERNATIONAL FORM 50 40 OM2 UNIT SCREEN OVERVIEW This screen is accessed from the Home Screen The primary values of the chiller or condensing unit which must be monitored and controlled are shown on this screen The data available depends on the type of unit This screen display depicts a visual representation of the unit itself Animation indicates chilled liquid flow and condenser fans running DISPLAY ONLY Systems Statuses Displays the individual refrigerant systems operational statuses The messages displayed include running status cooling demand fault status external cycling device status load limiting and anti recycle timer status The status message that is displayed on the microprocessor 15 represented here System Run LED Is ON when the individual refrigerant systems compres sor is running If any of these are ON the fans will be animated to show that they are running Slide Valve Step If Screw Displays the individual refrigerant systems slide valve step Load Stage If Recip Indicates the number of solenoids on the compressor of a YCAR unit that are de energized and loaded Number Of Compressors Running If a system has mo
3. vOL Od HAOX er SdaalNnfr u344ng HAOX 1 sng viva LHDSITMOVa WNOHd3 5019 gt INVHG d3ld4dANI DOTVNV 20 6 OHOIN AV 1dSIG AOVAYALNI AV 1dSIG LHOd TVvicid3S SJAHOLIAS ddlddANOO QN J GND OQAS AlddNS cIHH SI M OID Scd d3 1VM da TIIHO amp 51 T SOTVNV FIG 33 MICROBOARD 75 YORK INTERNATIONAL Service TABLE 2 MICROBOARD PROGRAM JUMPERS MICROBOARD PROGRAM JUMPERS JP1 Watchdog enable disable The position of this jumper In conjunction with Program switch SW position 12 enables or disables the program Watchdog protection Never disable the watchdog protec tion Severe compressor or chiller damage could result The ability to disable the watchdog protection is provided for factory testing only IN Watchdog protection enabled OUT Permits Program switch SW position 12 to enable or disable the program Watchdog protection as follows Position 12 ON Watchdog protection enabled OFF Watchdog protection disabled JP2 Display power and logic levels Determines the power supply voltage applied to the display Pins 1 2 S VDC
4. yon eos K T 4 M 4 gt z 297 a 00533VIP umm 4 p EL m 2 taastata scene ca 3 Fa r M ia ra Pee PT Te E 4 7 Ta pas DA A I mu t mi Tw m E y n t zi i ark 47 ET K ed CURL ati mj B r J ny F dir Wa TD el Las 11 1 Ems x E m a p So Lan f 2 T ais 3 ieS 00534VIP FIG 56 INSIDE OF OPTIVIEW REMOTE CONTROL CENTER YORK INTERNATIONAL 107 Renewal Parts 14 15 13 ove julli 00535VIP FIG 57 INSIDE DOOR OF OPTIVIEW REMOTE CONTROL CENTER 108 YORK INTERNATIONAL FIG 58 LOCATION OF FUSE F1 amp F2 YORK INTERNATIONAL FORM 50 40 OM2 21 LD06513 109 Renewal Parts SI METRIC CONVERSION The following factors can be used to convert from English to the most common SI Metric values MEASUREMENT MULTIPLY THIS BY TO OBTAIN THIS ENGLISH VALUE METRIC VALUE CAPACITY TONS REFRIGERANT EFFECT ton 3 516 KILOWATTS kW POWER KILOWATTS kW NO CHANGE KILOWATTS kW HORSEPOWER hp 0 7457 KILOWATTS kW FLOW RATE GALLONS MINUTE gpm 0 0631 LITERS SECOND 5 LENGTH FEET ft 304 8 MI
5. O NOTES BRIGHTNESS CONTROL WIPER 5 11 Not Used 12 Watchdog Protection Used in conjunction with Program Jumper JP1 see above to enable disable the program watchdog protection With JP1 IN this switch setting has no effect With JP1 OUT this switch setting determines whether the watchdog protection is enabled or disabled NEVER disable the watchdog protec N tion Severe compressor or chiller damage could result The ability to dis able the watchdog protection is provided for YORK factory testing only ON Watchdog protection enabled OFF Watchdog protection disabled BRIGHTNESS CONTROL 4 OR N C TO BACKLIGHT INVERTER BOARD BRIGHTNESS CONTROL LD04054 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 amp JP8 determine the output at J6 7 In Variable Voltage Out Variable Resistance Refer to Program Jumper Listing in Table 2 for applications 3 Potentiometer is actually an integrated circuit that is the electrical equivalent of a 10K potentiometer FIG 34 MICROBOARD LAMP DIMMER CIRCUIT 78 YORK INTERNATIONAL FORM 50 40 OM2 TX1 RX1 77 MICRO E 3 PRINTER 5 DSR GTX 7 GRX 5 MICROGATEWAY 8 9 444 RS 485 Y 1 3 Jp27 COM 4A gt NOT USED 2 1 5VDC 1 GND 4 SHIELD 5 TX2 RX2
6. 48 Page Down Standard 00519VIPC NAVIGATION Home Causes an instant return to the Home Screen Unit Data Causes an instant return to the Unit Screen History Causes a return to the History Screen YORK INTERNATIONAL FORM 50 40 OM2 RCC SETPOINTS SCREEN TEM EE CL 5 Jun 2000 1 44 P Home SETPOINTS SCREEN FIG 20 OVERVIEW This screen is accessed from the Home Screen This screen shows configuration parameters for this OptiView Remote Control Center This screen also serves as a gateway to more sub screens for defining general system parameters DISPLAY ONLY None PROGRAMMABLE Number of Units Connected Allows the user to program how many units the Control Center will need to communicate to YORK INTERNATIONAL Setup Humber of Units Connected 4 00520VIPC NAVIGATION Home Causes an instant return to the Home Screen Setup This screen provides a single location to program the general system setup parameters such as Date Time It is also the gateway to many of the general system setup parameters such as Communications Printer Setup etc 49 RCC SETUP SCREEN BENE 15 Jun 2000 1 46 Pa Home SETUP SCREEN Clock Enabled FIG 21 Set Date Set Time OVERVIEW This screen is accessed from the RCC Setpoint Screen This screen shows the general configuration parameters for this OptiView Remote Control Center It allows programmi
7. FIG 9 HOME SCREEN EXAMPLE OVERVIEW When the OptiView Remote Control Center 1s powered on the above default display appears This screen gives a general overview of the operating status of each unit connected to the OptiView Remote Control Center The data and control of an individual unit is accessed from the Home Screen display Fig 9 15 an example that shows eight units were programmed DISPLAY ONLY Unit Control Temperature Displays the temperature of what the unit is using for control such as leaving chilled liquid temperature This 15 not shown if suction pressure is being used for control Unit Type Displays the type of chiller the unit 15 Unit Status Displays a general status message for the unit The general status message will include communications status running status and fault status etc Following is a complete listing of the general status messages Not Initialized will be displayed upon power up for all units until the OptiView Remote Control Center begins to poll and receive data from that unit While 22 Unit 1 z Comp Recip Unit 2 z Comp Recip Unit 3 2 Comp Screw 3 Comp Scroll unita 2 Comp Screw Unit 5 2 Comp Screw Unit 6 z Comp HRecip 6 Comp Scroll Unit 7 Unit 00499VIPC this message 1s displayed the unit s button will be disabled not allowing it to be selected Initializing will be displayed while the OptiView Remote Control Center is polling a un
8. have been determined and entered set at the YORK Factory at the time of manufacture 1 PROGRAM JUMPERS SWITCHES ___ Verify Microboard Program Jumpers and Program Switches are configured appropriately 2 SETPOINTS Screen The setpoints listed on the SETPOINTS Screen have already been programmed at the chiller condensing unit The values shown reflect the previously programmed values However the setpoints listed here can be changed on this screen if desired only if the chiller condensing unit 1s in remote conrol mode This screen is used primarily as a central location from which most setpoints can be programmed If it is not desired to change any of the listed setpoints proceed to the following RCC SETPOINTS Screen YORK INTERNATIONAL 3 RCC SETPOINTS Screen Number of Units Connected RCC SETUP Screen _ _ Enable Clock ___ Enter CLOCK Time and Date Select 12 or 24 hour display mode COMMS Screen Enter the following parameters as required for com munication to the remote chiller panel s RCC Poll Time PRINTER Screen If Printer 1s connected to Microboard serial ports enter the following Baud rate _ _ Number of data bits _ _ Number of stop bits Party _____ Automatic printer logging Enable disable Log start time __ Log output interval Log Unit Selected 1 8 _ Printer type 105 Renewal Parts SECTION 6 PART NUMBER AND RENEWAL PARTS TABLE 4 PART NUMBE
9. All Black 00528VIPC pixels that do not turn on will appear as black dots on the display If any black dots appear first ascertain it is not caused by dirt that is lodged between the display surface and the protective plastic cover It is normal for a small number of randomly spaced pixels to not illuminate It 1s not necessary to replace the display 1 small number of black dots appear They will not be visible on the normal screens displayed outside of this diagnostic mode However large black areas would be indicative of a defective display All Green This test verifies the operation of all of the green pixels All of the green pixels are turned on to create a completely green screen Refer to description of All Red test above All Blue This test verifies the operation of all of the blue pixels All of the blue pixels are turned on to create a completely blue screen Refer to description of All Red test above All White This test verifies the display s ability to turn on all pixels to display a completely white screen Any pixel that does not turn on will appear as a black dot Refer to description of All Red test above All Black This test verifies the display s ability to turn off all pixels to display a completely black screen Any pixel that does not turn off will appear as a red green blue or white dot Refer to description All Red test above 99 Service BIT PATTERNS TEST S
10. PROCEDURE Digital Inputs 1 The Digital Inputs are listed on this screen according to a Microboard Program Jumpers and Program DIP Switches Tables 2 and 3 list the functions of the Program Jumpers and Switches YORK INTERNATIONAL DIAGNOSTICS I O SCREEN FORM 50 40 OM2 Home Diagnostics 00525VIPC 2 If a Program Jumper is present the applicable LED should be extinguished If the LED is not extinguished the Microboard 1s defective If a Program Jumper is not present the applicable LED should be illuminated If the LED 1s not illuminated the Microboard is defective 4 Ifa Program Switch DIP is in the ON position the applicable LED should be illuminated If the LED 15 not illuminated the Microboard 15 defective 5 If the Program Switch DIP is in the OFF position the applicable LED should be extinguished If the LED 15 not extinguished the Microboard 1s defective 6 When all desired tests have been performed press DIAGNOSTICS key to return to MAIN DIAGNOSTICS Screen PROGRAMMABLE None NAVIGATION Home Causes an Instant return to the Home Screen Diagnostics Causes a return to the previous screen 55 DIAGNOSTICS RCC COMMS SCREEN DIAGNOSTICS SCREEN Unit 2 Comp Screw Unit 2 Comp Recip Unit3 2 Comp Scroll Unit Unita Reset Counters FIG 26 OVERVIEW This screen is accessed from the Diagnostics Screen This screen
11. Trending d Temperature TEES Reti Liquid Temperature 54 0 F Seipoints History 00569VIPC Home System Data Hours Starts Options Trending ving Chilled guid Temperature 37 3 F Setpoints Return Chilled Liquid 48 1 F History 00570VIPC YORK INTERNATIONAL YORK INTERNATIONAL UNIT SCREEN EXAMPLES SYSTEM 1 STATUS SYSTEM 2 STATUS SCREEN System Run 1 2 Ambient Temperature 78 4 F Slide Valve Step 1 44 2 45 System Hun Time 1 4 Hr 2 4 Lead System Print Evaporator Pump Contact Evaporator Heater FIG 10C YCAS CHILLER SYSTEM 1 STATUS SYSTEM 2 STATUS SCREEN System Run 1 Ambient Temperature 83 0 F Compressors Runnim 1 0 2 0 System Hun Time 1 Sec 2 O Sec Lead System Print FIG 10D YCUL CONDENSING UNIT 42 0 F Retur Chilled Liquid Temperature 52 0 F Dischrange Air 55 4 F FORM 50 40 OM2 System Data Hours Starts Options Trending setpoints History 00571VIPC System Data Hours Starts Options Trending Setpoints History 00572VIPC 25 26 UNIT SCREEN UNIT SCREEN System Hum d Side Valve Step 78 1 2 75 Hon Winns Hin Lead System Eump asas anyin Hui Luli
12. 100 S9Z1L0 1 0 CAVOLd 1 NOOINW3S 91 O on OND gt OND m Lon AQT told gn an WE o 59 gt 0 9 SONG Zaid one ND M sul N 233 25 gt ONO dwv er 5 3SOHIH YORK INTERNATIONAL FIG 43 DISPLAY INTERFACE BOARD 88 FORM 50 40 2 DISPLAY BACKLIGHT INVERTER BOARD REFER TO FIG 44 The Display Backlight Inverter Board generates high voltage AC signal that is applied to the backlight lamp causing it to illuminate The magnitude of the signal determines the lamp brightness Displays by some manufacturers have two lamps one at the top and one at the bottom of the display Other Display manufacturers have only a lamp at the top of the display An Inverter converts low level DC voltage 12VDC 5VDC as required by the manufacturer from the Microboard to a 500 to 1500VAC 60KHz signal that is applied to the lamp The higher the AC voltage the greater the brightness of the lamp When this voltage is not present the lamp is turned off High voltage up to 1500VAC is pres N ent at the output of the backlight inverter board Refer to Figure 44 and locate the output connectors Use extreme caution when working in this area Different Display manufacturers require different Backlieht Inverter Boards The different board desiens
13. Step 6 Carefully tighten each terminal of TB1 Double check all wiring to the Module before closing up Unit Microboard 031 01095 000 Step 1 Label all wires cables or components con nected to TB7 Step 2 Carefully loosen each terminal of TB7 Remove all wires cables or components Be extremely careful to not allow them to short together or to the enclosure Step 3 Replace all wires cables or components taken from TB7 into the Module terminal strip J1 being extremely careful to not allow them to short together or to the enclosure Step 4 Carefully tighten all screws on the Module Terminal strip J1 Step 5 Orient the Module as shown component side up and insert all six 1 Module pins into TB7 as shown Step 6 Carefully tighten each terminal of TB7 Double check all wiring to the Module before closing up 14 EPROM COMPATIBILITY Since the concept and design of the OptiView Remote Control Center may have occurred after the original EPROM software for the chiller condenser control panel the EPROM may need to be replaced with one that allows for OptiView Remote Control Center operation See Table 1 TROUBLESHOOTING From the Home Screen you can determine if you are communicating to the chiller condensing unit If the message Not Initialized remains shown on this screen proper communication between the panels has not occurred and you will need to troubleshoot Step 1 If you are trying to communicate wi
14. o o ELECTRONIC ELECTRONIC ELECTRONIC CONTROL CONTROL CONTROL lt 006739 CORRECT PLANT SUPPLY TRANSFORMER 3 PHASE GROUND BUS lt i UM pp T A i ELECTRONIC ELECTRONIC ELECTRONIC CONTROL CONTROL CONTROL INCORRECT LD06740 FIG 6 POWER amp GROUND WIRE CONNECTIONS 17 SECTION 3 OPERATION OPTIVIEW REMOTE CONTROL CENTER YORK FIG 7 The OptiView Remote Control Center display is highlighted by a full screen graphics display This display is nested within a standard keypad and is surrounded by soft keys which are redefined based on the currently displayed screen Eight buttons are available on the right side of the panel and are primarily used for navigation between the system screens At the base of the display are 5 additional buttons The area to the right of the keypad is used for data entry with a standard numeric keypad provided for entry of system setpoints and limits Decimal key 15 used prior to entering decimal values A key has also been provided to allow entry ZEN of negative values and AM PM selection during time entry 18 1 m 4 gt a n O 00500VIP 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 reject entry of a setp
15. s product line is not to be connected inside the OptiView Remote Control Center cabinet Devices such as relays switches transducers and controls may not be installed inside the OptiView Remote Control Center No external wiring is allowed to be run through the OptiView Remote Control Center All wiring must be in accordance with YORK s published specifications and must be performed only by qualified YORK personnel YORK will not be responsible for damages problems resulting from improper connections to the controls or application of improper control signals Failure to follow this will void the manufacturer s warranty and cause serious damage to property or injury to persons WARNING PROPER INSTALLATION PRACTICES Earlier relay systems were virtually immune to radio frequency interference RFI electromagnetic interfer ence EMI and ground loop currents Installation consisted of hooking up the point to point wiring and sizing the wire properly In an electronic system improper installation will cause problems that outweigh the benefits of electronic control Electronic equipment is susceptible to EMI and ground loop currents which can cause equip ment shutdowns processor memory and program loss erratic behavior and false readings Manufacturers of industrial electronic equipment take into consideration the effects of RFI EMI and ground loop currents and incorporate protection of the electronics in their d
16. Load Limit Setpoint YCAL Chillers Load Limiting can be programmed from 0 to 2 Load Limit 0 no load limit Load Limit 1 50 load limit 2 4 compressor units Load Limit 1 66 load limit 3 6 compressor units Load Limit 2 33 3 6 compressor units only Change Schedule The daily schedule is a 1 week schedule and must be programmed for the start and stop time for each week day and a holiday if desired A box is provided to specify which days are to use the holiday schedule Programming the same time for both Start and Stop times will cause the display to enter 00 00 for both times which will cause the chiller to always be allowed to run Repeat Monday The other days can be selected to change to the Monday schedule Clear Schedule In a situation where it is required to run the chiller 24 hours a day 7 days a week the Chiller Control panel should first have its entire Daily Schedule zeroed 00 00 for all Start and Stop times This puts the chiller in the run mode at all times The OptiView Remote Control Center may now be programmed with all zeroes 00 00 for all Start and Stop times by pressing the Clear Schedule button Since the chiller panel 1s already in the run mode programming the OptiView Remote Control Center for all zeroes will keep the chiller in this mode indefinitely allowing the chiller to run whenever demand requires NAVIGATION Home Causes an instant return to the Home Screen Unit Data
17. of the buttons the imitate the desied test X FIG 50 Each of the Display Diagnostics is accessed from this screen After each diagnostic 1s performed return to this screen from which the next diagnostic can be selected Refer to description of Display operation in Section 5 of this book PROCEDURE 1 Press the appropriate keypad key to perform the desired test from the list below 2 Press the CANCEL X or ENTER T key to terminate test and return to DISPLAY TEST MAIN Screen from which another test can be selected 3 When all the desired tests have been performed press the DIAGNOSTICS key to return to the MAIN DIAGNOSTICS Screen Bit Patterns This test is used to detect jitter and alignment defects It verifies proper operation and compatibility of the Microboard Display Controller with the display Four vertical bars of green dark blue light blue and yellow outlined by a red border are displayed If the vertical bars are not stable or straight or the red border is not completely visible then either the Microboard Program Jumpers are not configured correctly for the installed display or the Microboard Display controller is defective Refer to Figure 51 All Red This test verifies the operation of all of the red pixels All of the red pixels are turned on to create a completely red screen Any red YORK INTERNATIONAL Diagnostics Bit Patterns All Red All Green All Blue All White
18. v eive st ee ix 2 25 8 T Y 1 5 t ey U T a 1 on A A Va Xem 2 A gt 1 pues te a Ste cb ee ele ee KEAT i peccet wane 2 ect __ aos i 22 ans cse SEE 00085VIP SEIKO DPU 414 FIG 27 PRINTERS YORK INTERNATIONAL 59 PRINTERS A printer can be connected to the OptiView Remote Control Center s Microboard to print the following reports The screen from which each report can be generated 15 listed in parenthesis Operating Data Present system parameters Unit History System parameters at the time of the last fault while running and last saved faults History The printer can be permanently connected to the Remote Control Center or connected as required to produce a report If permanently connected a DATA LOGGING feature can produce a Status report automatically beginning at an Operator selected start time and occurring at an Operator selected interval thereafter The following figures are examples of the different print reports Figure 28 Operating Data Figure 29 History Header PRINTERS The following Printers can be used Printers must be equipped with an RS 232 Serial interface Okidata Models 182 182 turbo 184 turbo Dimensions 14 in wide x 10 5 in deep Paper 8 5 in wide Type Dot matrix impact Weigh Tronix Models 26
19. Although these components have YORK Part Numbers as listed in the Parts List and can be individually replaced it is recommended that these existing components be used in the new Board since the BRAM memory device contains all of the programmed setpoints YORK INTERNATIONAL FORM 50 40 OM2 1 1 J9 c 4 __1 _ Aa RSO TP6 JP35 U25 5 54 ug C51 ue2 U64 om JP36 HI EX Q E 8 U21 C53 C36 C37 2 A 23 2 52 LLI 43 Ie 7 49 15 5 26 us us Er O 55 555 0 EB 8 _R68 c3 29 2g I bi mj 832 B1 uss U87 us2 1 2 s 1 2 3 Sues vee 7 e J 1 5 F lt 3 cts 19 AS 5 RC 5 81 R74 R78 5e ao 975 U67 NE oo Wa 24 006743 31 MICROBOARD YORK INTERNATIONAL 73 Service MEMORY CARD SOCKET ELASTOMERIC MEMORY CARD CONNECTOR TOP SURFACE LD06745 PRESS DOWN MEMORY CARD TO RELEASE CARD RETAINER CLIP TOP SURFACE LD06744 MEMORY CARD BOTTOM SURFACE WRITE PROTECT SWITCH OPTIONAL MUST BE IN ENABLED POSITION 3V 5V ALIGNMENT KEY NOTCH LD06746 MEMORY CARD SIDE VIEW WRITE ENABLED WRITE DISABLED LD06747 FIG 32 FLASH MEMORY CARD 74 YORK INTERNATIONAL FORM 50 40 OM2 8729001 S HONOUHL SlHOd VLVq 1 5 SLNdLNO SLANI
20. CXA LO612 VJL Backlight Inverter Board YORK P N 031 01789 000 ref Fig 39 and Fig 40 These boards generate a lamp illumination high voltage AC from 12VDC When the Backlight Enable signal at connector CN1 3 is 5VDC the high voltage signal is applied to the lamp When CNI 3 is OVDC the high voltage signal is removed from the lamp turning it off The lamp brightness is controlled by a variable voltage signal developed by the lamp dimmer circuit ref Fig 34 on the Microboard and applied to connector CN1 4 The lamp dimmer circuit varies the voltage at CN1 4 over the range of 0 to 3 0VDC OVDC produces maximum 100 brightness 3 0VDC produces minimum 0 brightness Voltages between these values produce a linear brightness 0 and 100 Connector CN2 applies the high voltage lamp illumination signal to the lamp Bg Service RETURN INVERTER BOARD CN1 123 4 5 N C INVERTER CABLE 031 02054 001 500 1400 VAC LAMP TYPE TDK CXA L0612 VJL PART NUMBER 031 01789 000 FOR SHARP LQ10D367 amp LG SEMICON LP104V2 W DISPLAYS NOTES 1 3 Refer to Microboard Program Jumper 5 N C 4 N C No Connection na 0 3 0VDC OVDC MAX 100 Brightness BRIGHTNESS CONTROL NOTE 2 OFF OVDC ON 5VDC Refer to Microboard Program Jumpers amp JP4 in Table 2 3 0VDC MIN 0 Brightness Refer to Fig 34 and Microboard Jumpers JP7 amp JP8 N C
21. Causes an instant return to the Unit Screen YORK INTERNATIONAL FORM 50 40 OM2 HISTORY SCREEN 15 Jun 2000 1 39 PM Home HISTORY SCREEN Shutdown Number 1 10 01 AM 20 Apr 2000 Unit Data Shutdown Number 2 20 Apr 2000 Shutdown Number 3 10 40 PM 18 2000 Shutdown Number 4 Shutdown Number 5 Shutdown Humber 6 Selected View Print History 1 Details History FIG 18 OVERVIEW This screen allows the user to browse through the faults In order to get a more thorough reporting of the system conditions at the time of the recorded shutdown move to the sub screen HISTORY DETAILS The user may use the Select Fault button to select the history to view At this point the View Details button is used to Jump to a sub screen containing stored chiller parameters values at the time of the shutdown Additionally the Print History button can be used to generate a hard copy report of the parameter values at the time of the shutdown DISPLAY ONLY Last Faults This window displays a chronological listing most recent first of the date and time and the description of the last four to six safety shutdowns depending upon the type of chiller that occurred while the system was running YORK INTERNATIONAL 18 Apr 2000 18 Apr 2000 18 Apr 2000 Print All Histories 00518VIPC PROGRAMMABLE Print History This generates a report listing the status of the chiller parameters at the time of the selected shutdo
22. Holiday 12 00 No 12 00 AM 12 00 Ho 12 00 AM 12 00 No 12 00 AM 12 00 AM No 12 00 AM 12 00 No 12 00 AM 12 00 No 12 00 No 12 00 AM 12 00 Monday iuesday Wednesday sunday Holiday Leaving hillen FIG 17B YCAS CHILLER 44 00515VIPC 00516VIPC YORK INTERNATIONAL YORK INTERNATIONAL FORM 50 40 OM2 sarna rE 3 SETPOINTS SCREEN Leaving Ghilled Remote Run Setpoint 35 0 F Run Unit Data Range 2 0 F 7 imit setpoint 105 x Remote Chiller Run Daily Schedule Stant ime Stop ime Holidays Current Limit Setpoint Monday 7 00 AH 5 00 AH 7 00 AM 5 00 AM Wednesday 7 00 5 00 AM D Change Schedule 7 00 5 00 AM 7 00 AM 5 00 AH 7 00 AM 2 00 0 Repeat Monday sunday 7 00 AM 5 00 0 Holiday 12 00 AM 12 00 AM Clear Schedule Leaving Liquid emperaire Setpoint Range FIG 17C YCAR CHILLER 00517VIPC 45 SETPOINTS SCREEN OVERVIEW This screen accessed from the Unit screen provides convenient location for programming the most common setpoints involved In the chiller condensing unit control The setpoints depend on the t
23. If the LED 16 not extinguished the Microboard is defective When all desired tests have been performed press DIAGNOSTICS key to return to MAIN DIAGNOSTICS Screen 103 Service ANALOG INPUTS TESTS Analog Diagnostics Voltage Counts 2044 1 ooo 0 FIG 54 00532VIPC This diagnostic 18 used to analyze the Analog Inputs to the Microboard The voltage level of each Analog input as interpreted by the Microboard 15 displayed The Counts listed for each parameter is the Analog to Digital A D converter value and is for manufacturing and engineering use only The following 15 a list of the Analog inputs displayed Channel 0 Presently Not Used 1 Presently Not Used 104 YORK INTERNATIONAL FORM 50 40 OM2 SYSTEM COMMISSIONING CHECKLIST Use the following checklist during commissioning to assure all Setpoints have been programmed to the desired value and all calibrations have been performed The Setpoints are grouped under the Display Screen in which they appear The indented screens are subscreens of the numbered screens and are accessed from the numbered screens An explanation of each setpoint or Calibration Procedure below 15 contained in the reference document listed in parenthesis adjacent to each item If any of the Setpoints have to be changed use the standard programming procedures in the Operation Section Thresholds values and calibrations of items marked with an asterisk
24. Is ON when the Liquid Line Solenoid Valve is energized open Economizer Solenoid LED Is ON when the economizer Thermal Expansion Valve Solenoid is energized open Oil Cooling Solenoid LED Is ON when the Oil Cooling Solenoid Valve is energized open Compressor Heater LED Is ON when the compressor heater 15 on Hot Gas Bypass LED Is ON when the hot gas bypass valve is open PROGRAMMABLE None NAVIGATION Home Causes an instant return to the Home Screen Unit Data Causes an instant return to the Unit Screen of the selected unit System A detailed view of the specified system information Operation INDIVIDUAL SYSTEM SCREEN saw SYSTEM STATUS SYSTEM SCREEN Locked Onn I System System Hon time D 4 29 17 D H H 5 Solenoid Discharge 215 5 PSIG 66 7 PSIG Suction Pressure saated Disthange emp 105 9 F 42 4 F aturated emp Discharge 150 2 F 48 9 F ciim Discharge superheat 44 3 F 6 5 F SUuperheat 185 4 PSIG 57 Motor E T pres ro Low Differential On Press 1187 PSID 46 Slide Valve Step High Differential Press 30 1 PSID 28 Pressure 116 9 F 78 9 F Ambient Temperature Economizer solenoid ode 3 Condenser Fan Stage FIG 12A YCAS CHILLER DATE TAME Unit 1 System 1 2 Comp
25. Run will be displayed for any non fault condition preventing the entire chiller from run ning This would include such things as the daily schedule unit switch all system switches run perm etc While this message is displayed the unit s button will be enabled allowing it to be selected Unit Run Indicator LED Is ON when the unit is running Average Ambient Temperature Displays the average Ambient Air Temperature of all the units connected YORK INTERNATIONAL FORM 50 40 OM2 PROGRAMMABLE None NAVIGATION Unit A detailed view of data relevant to the specified unit If the Not Initialized status message 15 displayed the unit s button will be disabled not allowing it to be selected Setpoints This screen provides the gateway to many of the OptiView Remote Control Center s general setup parameters such as Date Time Comm Setup Printer Setup etc 23 Operation UNIT SCREEN SYSTEM 1 STATUS SYSTEM 2 STATUS UNIT SCREEN JAM 52 System Run Ambient Temperature 94 6 d Lead System Evaporator Pump Evaporator Heater Print FIG 10A YCAL CHILLER SYSTEM 1 STATUS UNIT SCREEN System Run 1 2 Ambient Temperature 81 5 F Load Stage 1 2 System Run Time 1 Sec 2 23 Sec Lead System Evaporator Pump Contact Evaporation Heater FIG 10B YCAR CHILLER 24 EXAMPLES System Data Hours Starts Options
26. SY 57 RS 232 gt Bon J13 SEE DSR 2 21 RX x Wg RTS 1 NOT USED C coM2 CTS 6 DTR 7 UART TX3 RX3 1 A RS 485 IRE 2 CONNECTION COM 3 5VDC 1 TO CHILLER GND CONDENSING SHIELD 5 CONTROL PANELS TXS RXS QM OPTO COUPLE E COM 5 COMMON NOT USED JJ aie eR ID LD06749 NOTE 1 Microboard Program Jumper JP27 determines whether 4 or 4 can be used 1 amp 2 4 2 amp 3 4B Refer to Table 2 FIG 35 MICROBOARD SERIAL DATA COMMUNICATIONS PORTS YORK INTERNATIONAL 79 Service J7 71 5 NOT USED 0 10VDC 4 20 MA 14 5 1 47K 1 1 13 gt 75K 200 2 4 20 MA s GO O MUX J22 NOT USED 0 10 VDC 1 2 10 VDC 2 2E 1 0 20 MA 4 20 MA O JP28 NOT USED 0 10 VDC 3 2 10 VDC 0 20 4 2A 1 4 20 MA 3 JP24 LD04636 NOTE 1 Program Jumpers JP21 JP24 must be positioned on pins 1 2 or 3 4 according to input signal type Refer to Table 2 FIG 36 CONFIGURABLE ANALOG INPUTS 80 YORK INTERNATIONAL FORM 50 40 2 LIQUID CRYSTAL DISPLAY REFER TO FIG 37 42 A 10 4 inch color Liquid Crystal Display along with supporting components Display Interface Board and Backlight Inverter Board are mounted on a plate that is attached to the Opti View Control Center door A clear plexiglass faceplate prevents display surface damage System o
27. When all steps have been completed both the green and the red LED s illuminate and remain illuminated STEP PASS FAIL 1 Green on Red off initiate re boot 2 Green flash once 3 Gau mash ones Boot up process nae Two red flashes repeating 4 ence Boot up process a Three red flashes repeating 5 ash ona Boot up process halts Boot up process halts One red flash repeating Four red flashes repeating 69 Service The BRAM battery backed random access memory 15 a memory device that contains a battery that preserves the data during power failures It is a replaceable part Refer to the YORK Renewal Parts List It is located in socket location U52 The Micro stores the setpoints programmed by the Operator or Service Technician History Data and other data that requires preservation in this device Also the day of week time of day and calendar date time keeping are done here The keypad is a matrix of conductors arranged In rows and columns ref Fig 45 amp 46 There are 4 rows and 8 columns When a key 15 pressed the conductors are pressed together at that point creating continuity between that row conductor and the column conductor The Keypad is read by applying a logic low to a row while leaving 5 VDC pullup on all the other rows The Micro then reads the 8 columns If any column has a logic low on it the key corresponding to that coordinate row column is being pressed The Mic
28. a paper backing Remove the paper backing align the Display opening and apply the Keypad to the door 91 S a fefe 4 ISIN A LELLE CUTOUT LD06756 FIG 45 KEYPAD YORK INTERNATIONAL 92 FORM 50 40 OM2 COL 2 COL 3 COL 7 COL Q s prem a COL 7 COL Q COL 4 COL 6 COL 2 COL I m NN ma ROW 4 LD04075 ROW 4 ROW 3 ROW 2 ROW I COLUMN 7 COLUMN 6 COLUMN 5 COLUMN 4 COLUMN 3 COLUMN 2 COLUMN 1 COLUMN 6 C2 C2 9 S 9 GROUND CONNECTOR PIN QUT FIG 46 KEYPAD LD04076 YORK INTERNATIONAL 93 Service POWER SUPPLY REFER TO FIG 47 The Power Supply provides the DC power for the LCD Display and all the printed circuit boards in the Control Center It receives a 100 to 250VAC input from an external power source and provides the following DC outputs 12VDC e 5VDC Ground The 12VDC Gnd and 5VDC outputs are applied to the Microboard There these voltages are applied to the circuits requiring the respective voltage From the Microboard the 12VDC and 5VDC are distributed to other system components requiring these voltages These include the MicroGateway LCD Display and Display Backlight Inverter Board As shown in Fig 47 the Microboard contains two voltage regulators that create separate 5VDC and 3 3VDC supplies The 5VDC supply
29. as the control lines are tested The RS 485 ports COM 3 and 4a are tested by transmitting serial test data from one RS 485 port to another The TX RX opto coupled port COM 5 is tested by transmitting serial test data from the TX output to the RX input If the received data matches the transmitted data PASS is displayed indicating the serial port is OK Otherwise FAIL is displayed indicating the serial port is defective Prior to performing each test the Service Technician must install a wire loop back connection as described below Refer to Section 5 and Figure 35 of this book for description of the Serial data Ports PROCEDURE l Using small gauge wire fabricate loop back connections and install as follows for each port to be tested Failure to install the loop back connection or configure the Microboard Program jumper as noted will result in a FAIL outcome for the test From To COM 1 J2 4 TX J2 3 RX J2 5 DTR J2 2 DSR YORK INTERNATIONAL 405 Ports Progress Test 465 Ports JP27 122 Test COM 4b E lt gt ES 4 4 gt 411 00530VIPC From To COM 2 J13 5 TX J13 3 RX J13 7 DTR J13 1 DCD amp J13 2 DSR J13 4 RTS J13 6 CTS amp J13 8 RI RS 485 From To COM J12 3 J11 3 3 amp 4a J12 2 J11 2 Microboard Program Jumper JP27 must be installed in position 1 amp 2 From To COM 4b J2 7 GTX J2 6 GRX Microboard Program Jumper JP27 must be installed in
30. between these points This 15 called the DATA 40 Unit Data 9 2 83 2 F Trending 19 1 F 82 9 F Hot Assigned Slot He Hot Assigned select Hot Assigned Chart Type One Screen Not Assigned Collection Interval 00575VIPC COLLECTION INTERVAL or 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 interval not only determines the sample interval 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 resolution and full screen time display Select the desired Data Collection Interval as follows 1 Determine the desired time interval in seconds between data samples 2 Calculate the full screen time display as follows 450 x Data Collection Interval full screen seconds e full screen seconds 60 full screen minutes full screen minutes 60 full screen hours full screen hours 24 full screen days 3 Decide if the resultant sample interval and full screen display meet the requirements If not select a differen
31. control signal timing between different display manufacturers Fig 38 depicts typical control signals Since these control signals occur at rates greater than can be read with a Voltmeter the following description 1s for information only There are 480 horizontal rows of pixels Each row contains 640 3 window pixels Beginning with the top row the drive signals are applied within each row sequentially left to right beginning with the left most pixel and ending with the right most pixel The rows are driven from top to bottom The Vertical Sync VSYNC pulse starts the scan in the upper left corner The first Horizontal Sync HSYNC pulse initiates the sequential application of RGB drive signals to the 640 pixels in row 1 Upon receipt of the ENABLE signal an RGB drive signal is applied to the first pixel As long as the ENABLE signal is present RGB drive signals are then applied to the remaining 639 pixels at the CLK rate of 25 18MHz or one every 39 72 nanoseconds Typically it takes 31 microseconds to address all 640 pixels Similarly the next HSYNC pulse applies drive signals to row 2 This continues until all 480 rows have been addressed Total elapsed time to address all 480 rows is approximately 16 milliseconds The next VSYNC pulse causes the above cycle to repeat Displays can be operated in FIXED mode or DISPLAY ENABLE mode In FIXED mode the first pixel drive signal 1s applied a fixed number 48 of clock CLK cycles from the en
32. displayed The Keypad 15 read as Digital Inputs When an operator presses a key to request a display the Micro interprets the request retrieves the display from the Program and displays it The Program assembles data in the correct format for transmission 68 through the Serial Data Ports to the chiller s and peripheral devices The Program also instructs the Micro to respond to requests from peripheral devices for serial data transmissions The Mux multiplexer is a switching device that only allows one analog input through at a time The inputs are selected sequentially by the Micro per Program instructions The A D Converter converts each analog input to a 12 bit word In this form the values can be stored in memory devices compared to values in the Program transmitted through Serial Ports or sent to the Display Controller for display Control signals to start conversion process are from the Micro via the FPGA The Watchdog circuit monitors the 5V supply from the Power Supply to determine when a power failure 1s occurring Just prior to the supply decreasing to a level where the Micro and supporting circuits can no longer operate it applies a reset signal to the Micro The Micro responds by shutting down the remote control center and retrieving the Power Failure message from the Program and sending it to the Display Controller for display Similarly when power is first applied after a power failure it maintains the Mic
33. for service replacement The YORK part number of the Display Interface Board compatible with the installed Display is listed on a label attached to the Display mounting plate However service replacement Displays are provided as a kit 331 02053 000 that includes among other items the appropriate Display Interface Board for the Display included in the kit Refer to explanation in Liquid Crystal Display description 031 01765 001 Display applicability Jumper configuration LG Semicon LP104V2 PIDO IN PID1 OUT PID2 OUT PID3 OUT P30 OUT P31 OUT 031 01765 002 Display applicability Jumper configuration SHARP LQ10D367 PIDO OUT PIDI IN PID2 OUT PID3 OUT P30 IN P31 IN The red green and blue display drive and control signals are simply passed through the Display Interface Board The value of VCC is either 5VDC or 3 3VDC as determined by the position of Program Jumper JP2 on the Microboard PIDO through PID3 when installed connect their respective Microboard J5 inputs to GND when removed the Microboard pulls these signals up to 5VDC When P30 is installed the Display input CN1 30 is connected to VCC 5 VDC or 3 3VDC as determined by Microboard Program Jumper JP2 When P31 15 installed the Display input CNI 31 is connected to GND 87 02070071 NI LE zcdld NI Laid LNO Odd 600 99 4 0 0 29200 01 dH VHS LNO LEd LNO Ldld NI Odd
34. from the UNIT screen displays all the dip switch settings and other programmable options at the chiller micro panel These items can only be changed at the chiller micro panel and not at the OptiView Control Center Depending on the type of chiller the following data might be displayed DISPLAY ONLY Units Display Mode The units selected at the OptiView Remote Control Center either Imperial or SI is displayed In Imperial Units temperatures will be in F and pressures will be in PSIG or PSID In SI units temperatures will be in C and pressures will be in BARG or BARD The values at the OptiView Remote Control Center will be displayed in the units that are selected on it s Setpoints screen regardless of what is programmed at the chiller condensing unit NOTE Refrigerant Type The refrigerant either R 407C or R 22 selected at the chiller micro panel is displayed Chilled Liquid Type The cooling mode either Water or Glycol selected at the chiller micro panel is displayed Ambient Control Mode The ambient mode either Standard or Low Ambient selected at the chiller micro panel is displayed Local Remote Control Mode The control mode selected at the chiller micro panel either Local or Remote is displayed YORK INTERNATIONAL FORM 50 40 OM2 Language Display Mode The language selected at the chiller micro panel i e English is displayed Lead Lag Control Mode The Lead Lag control at the chiller micro p
35. indicate this PROGRAMMABLE Values in this group are available for change by the user if the chiller condensing unit is in remote mode If there are no values that can be changed then None is shown Setpoint Change Schedule On screens containing programmable setpoints a key with one of these labels will be visible This key allows the user to modify setpoints on that screen Setpoints Setpoint values are used to control chillers condensing units and other devices connected to the units Setpoints can fall into several categories They could be numeric values such as 45 0 F for the Leaving Chilled Liquid Temperature or they could Enable Yes or Disable No a feature or function Regardless of which setpoint 1s being programmed the following procedure applies YORK INTERNATIONAL 1 Press the desired setpoint key A dialog box appears displaying the present value the upper and lower limits of the programmable range and the default value 2 If the dialog box begins with the word ENTER use the numeric keys to enter the desired value Leading zeroes are not necessary If a decimal point is necessary press the key i e 45 0 Pressing the A key sets the entry value to the default for that setpoint Pressing the Y key clears the present entry The lt 4 key 1s a backspace key and causes the entry point to move back one space If the dialog box begins with SELECT use the 4 and gt k
36. male 6 off no parity 7 off Pin 20 amp pin 11 act as busy line WEIGH TRONIX Printer IMP 24 Model 2600 SW1 off 1200 Baud 2 on 1200 Baud Model 1220 PRINTER SETUP sura Veni The selected printer must be configured as follows Baud 1200 Refer to manual provided by Printer manufacturer with Data Bits 8 respective Printer Stop Bits 1 Hshake Busy Line OKIDATA 182 182 turbo 184 turbo Printer Cols 32 CONTROL BOARD Switch settings Invert No SWl on Unslashed 0 Font 5 8 2 off Unslashed 0 Mag None 3 off Unslashed 0 Custom Menu 4 off Form Length 11 in Auto Seq No 5 on Form Length 11 in Zero 0 6 off Auto Line Feed off Pound sign 7 8 bit data _ Underscore Busy invert no Online offline yes Ext Ch Set no Print ready yes 8 off Enable front panel If equipped with a SUPER SPEED serial Board SW1 1 on Odd or even parity l 2 on No parity 1 5 8 bit data Set Clock not used Reset Seq not used 1 4 on Protocol ready busy 1 5 Test select SEIKO 1 6 Print mode DipSW1 1 off Input Serial 1 7 off SDD pin 11 1 2 on Printing speed high 1 8 SDD pin 11 1 3 on Auto loading on 2 on 1200 Baud 1 4 off Auto LF off 2 2 1200 Baud 1 5 on Setting Command Enable 2 3 off 1200 Baud 1 6 off Printing density 100 2 4 off DSR active 1 7 on Printing density 100 1 8 on Printing density 100 YORK INTE
37. position 2 amp 3 2 After connecting appropriate loop back con nections above press the appropriate key to initiate the desired test An LED will illuminate indicating the test is in progress If it is desired to terminate the test press the CANCEL TEST key Test data 1s sent from an output to an input as described below At the completion of each test 1f the data received matches the data sent the Serial Port operates properly and PASS 15 displayed Otherwise FAIL 15 101 Service 102 displayed indicating the Serial Port is defective A FAIL result would be indicative of a defective Microboard The following is a description of each test COM 1 Two tests are performed Test data is sent from TX J2 4 to RX J2 3 at 9600 Baud and DTR J2 5 is set to a Logic High level and read at DSR J2 2 If any test fails COM 1 tests are terminated COM 2 Three tests are performed Test data is sent from TX J13 5 to RX J13 3 at 19200 Baud DTR 713 7 is set to a Logic High and read at DSR J13 2 amp DCD J13 1 RTS J13 4 is set to a Logic High and read at CTS J13 6 amp R1 J13 8 If any test fails COM 2 tests are terminated RS 485 COM 3 amp 4a Test data 15 sent from COM 3 RS 485 port to COM 4a RS 485 Port at 19200 Baud Test data is then sent from COM 4a to COM 3 at the same rate If either test fails RS 485 tests are terminated COM 4b Test data is sent from GTX J2 7 to GRX J2 6 at 19200
38. scan As described in the preceding Display description Normal scan is left to right beginning with the top row and continuing sequentially through the rows to the bottom row Normal scan is used in OptiView Remote Control Center applications In Display applications other than OptiView RCC applications image reversal is sometimes required In image reversal applications the scan is reversed the scan 15 right to left beginning with the bottom row and proceeding to the top row The jumper configurations determine the voltage level at Display Interface Board J1 30 P30 and J1 31 P31 If P30 is IN the voltage at J1 30 1s 5 0VDC or 3 3VDC as determined by position of Microboard Program Jumper JP2 if OUT OVDC If P31 is IN the voltage at J1 31 is GND if OUT OVDC The Display reads these voltages and adopts a scan mode as follows SHARP 10100367 amp LQ10D421 Displays SHARP displays require configuration of both jumpers to achieve total image reversal P30 IN Normal scan left to right OUT Reverse scan right to left YORK INTERNATIONAL P31 IN Normal scan top to bottom OUT Reverse scan bottom to top The wire jumpers on this board are not field configu rable as with typical Program Jumpers There are two variations of the Display Interface Board Each board has the wire jumpers configured appropriately for the display to which it is attached as shown below Display Interface Boards are available individually
39. this mode all normal RCC functions are disabled If the Diagnostics Enable dip switch 15 placed in the Disabled position while the panel 1s in the Offline Diagnostics mode the Diagnostics task will cause the panel to reboot into the online diagnostics mode YORK INTERNATIONAL FORM 50 40 OM2 MAIN DIAGNOSTICS SCREEN Welcome to Advanced Diagnostics his screen is the launching pad tor Keypad Test Vans advanced diagnostics capabilities Press any of the buttons on the right to Display Test imitate the desired test Serial Digital VO Analog Inputs FIG 48 00527VIPC Each of the Offline Diagnostics 1s accessed from this screen Press the appropriate key to select the desired diagnostic After each diagnostic 1s performed return to this MAIN Screen from which the next diagnostic can be selected Some of the diagnostics have sub screens that are accessed from the selected diagnostic screen The sub screens are shown indented Main screen Keypad test Display test Bit patterns test All red All green All blue All white All black Serial 1 0 Digital 1 0 Analog Inputs YORK INTERNATIONAL 97 Service KEYPAD TEST Keypad Test Press keys t test keypad operation Press diagnostics key rewi FIG 49 This diagnostic is used to verify Keypad operation and the Microboard s ability to respond to a pressed key Refer to description of Keypad operation in Section 5 o
40. to be OVDC to turn on the lamp Program Jumper JP3 must be positioned to provide the required polarity Depending upon the Display manufacturer the brightness control input from the Microboard must be either a variable voltage or a variable resistance Microboard Program Jumpers JP7 and JP8 are used to provide the appropriate technique refer to Fig 34 The lamp dimmer circuit on the Microboard is an IC that is the electrical equivalent of a 10K ohm potentiometer with 100 positions or steps The Program adjusts the position of the potentiometer When configured for variable voltage JP7 amp JP8 installed the output between Microboard J6 7 and J6 8 is a 0 to 5 0VDC signal Not all applications require the full 5 0VDC range If configured for variable resistance JP7 and JP8 removed the output between Microboard J6 7 and J6 8 is a 0 to 10K ohm variable resistance The OptiView Remote Control Center could be supplied with any of several approved Displays Each Display requires a specific Backlight Inverter Board This board is available as a service replacement part the required Backlight Inverter Board part number is listed on the label attached to the Display mounting plate However service replacement Displays are provided in a kit YORK P N 33 1 02053 000 that includes the appropriate Backlight Inverter Board refer to Liquid Crystal Display description SHARP model LQ10D367 and LG Semicon LP104V2 display requires a TDK
41. 00 1220 Dimensions 2 3 In wide x 2 8 in deep Paper 2 25 in wide Type Dot matrix impact Seiko Model DPU414 30B Power supply PW4007 U I required Dimensions 6 3 in wide x 6 7 in deep Paper 4 4 in wide Type Thermal Contact your local YORK Service Office Purchase The OptiView Remote Control Center provides the required formatting control codes for the printers above 60 when the printer 15 selected on the PRINTER Screen in the instructions below These codes are transmitted through the serial interface to the printer to provide a proper print format Different printers require different formatting control codes Other printers might provide proper operation when connected to the OptiView Remote Control Center However the print format may not be correct or as desired Proceed with caution and use the following guidelines if an unlisted printer is selected 1 All must be capable of RS 232 Serial communications 2 Primary differences between printers involve the formatting control codes required by the printer These codes are sent from the Control Center to the printer For example Weigh Tronix printers require a control code to select 40 column width This same code is interpreted by the Okidata printer as an instruction to print wide characters In some instances a printer will ignore a code it cannot interpret 3 The OptiView Remote Control Center requires a busy signal from the printer when the p
42. 101 Digital Inputs TEN 103 WE 104 System Commissioning Checklist 105 SECTION 6 PART NUMBER AND RENEWAL PARTS 106 LIST OF TABLES TABLE 1 Required Software Version of the Chiller Condensing Unit Eproms 11 TABLE 2 Program Jump r uu uuu u uu 76 AT 78 TABLE 4 Part Number ee 106 RE 100 YORK INTERNATIONAL 5 FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG FIG LIST OF FIGURES EU DECLARATION OF CONFORMITY f gb l c 12 CONTROL 16 GROUNDING eee 16 SEPARATE CONDUIT INSTALLATION 17 POWER amp GROUND WIRE CONNECTIONS 17 OPTIVIEW REMOTE CONTROL CENTER 18 SCREEN NAVIGATION LAYOUT 20 22 UNIT SCREEN 24 SCREEN 29 INDIVIDUAL SYSTEM SCREEN 32 HOURS AND STARTS SCREEN 34 OPTIONS SCREEN ee 36 TRENDING SCREEN i ie 38 TRENDING SETUP SCREEN 2 40 SETPOINTS SR 44 HISTORY SCREEN en 47 HISTORY DETAILS SCREEN 4
43. 8 RCC SEIPOINIS SCREEN 49 RCO SETUP SOBEEN 50 COMMS SCREEN uu u sas 52 PRINTER SGREEN u u l a aaa 53 DIAGNOSTICS SCREEN 0 54 DIAGNOSTICS MO SCREEN 55 DIAGNOSTICS RCC COMMS SCREEN 56 PRINTER cce 59 EXAMPLE PRINTOUT OPERATING DATA 63 EXAMPLE PRINTOUT HISTORY HEADER 64 CONTROL CENTER BLOCK DIAGRAM 67 FIG 31 FIG 32 FIG 33 FIG 34 FIG 35 FIG 36 FIG 37 FIG 38 FIG 39 FIG 40 FIG 41 FIG 42 FIG 43 FIG 44 FIG 45 FIG 46 FIG 47 FIG 48 FIG 49 FIG 50 FIG 51 FIG 52 FIG 53 FIG 54 FIG 55 FIG 56 FIG 57 FIG 58 MIC ROBOARD Ss en ae eiu epar 73 FLASH MEMORY CARD 74 BLOCK DIAGRAM MICROBOARD 15 MICROBOARD LAMP DIMMER CIRCUIT 78 SERIAL DATA COMMUNICATIONS PORTS 79 CONFIGURABLE ANALOG INPUTS 80 DISPLAY 84 LCD TYPICAL CONTROL SIGNAL TIMING 84 LG SEMICON LP104V2 DISPLAY ASSEMBLY 85 SHARP LQ10D367 DISPLAY ASSEMBLY 85 SHARP LQ10D367 BACKLIGHT LAMP REREAGENENT sow 86 LG SEMICON LP104V2 BACKLIGHT LAMP iium eum Em 86 DISPLAY INTERFACE BOARD 88 DISPLAY BACKLIGHT INVERTER BOARD 90 EY L GS 0 92 DIAGRAM KEYPAD LU ei 93 BLOCK DIAGRAM DC POWER DISTRIBUTION 95 MAIN DIAGNOSTIC SC
44. 85 or RS 232 Pins 1 2 RS 232 Pins 2 3 RS 485 JP10 JP26 Not used YORK INTERNATIONAL JP27 JP28 JP29 JP30 COM 4 serial communications port Configures COM 4 port to be either RS 485 for Multi Unit Communications COM 4A or RS 232 for MicroGateway board Pins 1 2 Enables port 4A Allows an RS 485 connection to Microboard J11 for MultiUnit Communications Pins 2 3 Enables port 4B Allows an RS 232 connection to Microboard J2 for MicroGateway communications PC 104 Port interrupt assignment Assigns selected PC 104 interrupt request to PDRQ7 on the microprocessor Interrupt request selections are silk screened on the Microboard adjacent to the program jumper Not used PC 104 Port interrupt assignment Assigns selected PC 104 interrupt request to PDRQ6 on the microprocessor Interrupt request selec tions are silk screened on the Microboard adjacent to the program jumper Future modem application PC 104 Port DMA assignment Assigns selected PC 104 DMA request to PDRQO on the micro processor DMA request selections are silk screened on the Microboard adjacent to the program jumper Not used YORK INTERNATIONAL FORM 50 40 OM2 JP31 PC 104 Port DMA assignment Assigns selected PC 104 DMA request to PDRQI on the micro processor DMA request selections are silk screened on the Microboard adjacent to the program jumper Not used JP32 PC 104 Port DMA acknowledge assignment
45. ATUS E SYSTEM SCREEN System 1 System Hon Time 6 Sec 114 Sec Discharge Pressure 292 5 PSIG 298 3 PSIG prar 79 7 PSID 95 3 PSID 98 8 PSIG 95 3 PSIG per nus peur 106 0 F 96 7 F Een us psu rr 72 3 F 53 0 F saturated socion lemp 59 4 F 56 4 F 13 9 F 12 6 F Moton turrem A 7 x 71x nad Stage 1 meum Fan Stage 1 5 Ligon bine Solenoid Gas Bypass Solenoid FIG 11B YCAR CHILLER 00506VIPC YORK INTERNATIONAL 29 Operation SYSTEMS SCREEN EXAMPLES SYSTEM SCREEN System 1 system system Fun Time 4 Hr 4 Hr Discharge Pressure 189 0 PSIG 210 9 PSIG Pressure 170 4 PSIG 181 3 PSIG p Esas d EET 9 PSIG 66 2 PSIG Disthange temperature 140 6 F 150 4 F Satiate Discharge hemp 97 6 F 104 5 F Wischange 43 2 F 45 9 F 115 7 F 117 0 F Ian F 50 6 F suction 41 3 F 42 1 F sire qr resa 17 4 F 8 5 Moton Goment ri TES Side Valve Step 46 47 Een Stage 3 3 Coole inlet Remigerant Temp 33 8 F 36 4 F bine Solenoid Economizer solenoid Heater FIG 11C YCAS CHILLER 00507 Unit 3 6 Comp Scroll SYSTEM 1 STATUS SYST
46. Assigns selected PC 104 DMA acknowledge to PDACKO on the microprocessor DMA acknowledge selections are silk screened on the Microboard adjacent to the program jumper Not used JP33 PC 104 Port DMA acknowledge assignment Assigns selected PC 104 DMA acknowledge to PDACKI on the microprocessor DMA acknowledge selections are silk screened on the Microboard adjacent to the program jumper Not used JP34 JP35 JP36 JP37 Not Used JP38 BIOS EPROM U45 size Jumper must be positioned according to size of U45 Jumper is a 10 Ohm resistor that is soldered to board It is not a shunt jumper IN 512K OUT 128K or 256K Should be OUT for OptiView Remote Control Center applications JP39 JP40 JP41 JP42 Not used 77 Service TABLE 3 MICROBOARD PROGRAM SWITCHES SW1 1 Simulator mode When this switch 1s closed or in the ON position the RCC simulates the data from 4 chillers and will not communicate with any attached units ON Simulator mode enabled Used for dem onstration OFF Simulator mode is disabled The unit must be powered on with the switch in this position for the RCC to communicate with attached units and operate normally 2 Not Used 3 Not Used 4 Diagnostics Enables or disables software diagnostics ON Enables software diagnostics Disables normal control center operation OFF Disables software diagnostics Enables normal control center operation 10K JP7
47. Baud After all desired tests have been performed press the DIAGNOSTICS key to return to the MAIN DIAGNOSTICS Screen YORK INTERNATIONAL FORM 50 40 OM2 DIGITAL INPUTS OUTPUTS TESTS Digital Test Digital inputs FIG 53 This diagnostic is used to analyze the digital inputs and outputs of the Microboard The state of each Microboard Program Jumper and Program DIP Switch as interpreted by the Microboard is depicted by an LED If the Microboard interprets its input as being at a Logic Low lt 1 0VDC level the LED is illuminated If interpreted as being at a Logic High gt 4 0VDC level the LED is extinguished PROCEDURE Digital Inputs 1 The Digital Inputs are listed on this screen according to Microboard Program Jumpers and Program DIP Switches Tables 2 and 3 list the functions of the Program Jumpers and Switches YORK INTERNATIONAL Digital Outputs Diagnostics 00531VIPC If a Program Jumper is present the applicable LED should be extinguished If the LED is not extinguished the Microboard 1s defective If a Program Jumper is not present the appli cable LED should be illuminated If the LED 15 not illuminated the Microboard 15 defective Ifa Program Switch DIP is in the ON position the applicable LED should be illuminated If the LED 16 not illuminated the Microboard is defective If the Program Switch DIP is in the OFF posi tion the applicable LED should be extinguished
48. COM 2 through 5 are connected directly to the UART Universal Asynchronous Receive Transmit The UART converts the parallel data to serial form for transmission to the peripheral device and converts the incoming serial data to parallel form for use by the Micro It also generates and processes control signals for the Modem communications DTR CTS DSR RTS Under Program control the Micro instructs the UART of the desired data transmission Baud rate A crystal oscillator provides the frequency reference Each port is equipped with two LED S a red one indicates when data 15 being transmitted to the remote device and a green one indicates when data is being received from the remote device The RS 232 output voltages are industry standard 3 to 15VDC with 9VDC typical The RS 485 output voltages are industry standard 1 5 to 5VDC with 2 5VDC typical A loopback diagnostic test can be performed on each serial port This test permits verification of the data transmitted from the serial port Refer to the Serial Inputs Outputs Tests description in this book for details of these tests The graphic screens that are displayed on the Liquid Crystal Display are created from preformed graphics and messages that are stored in the Program FLASH Memory Card and real time system operating parameters such as temperatures The graphics message and number data are In the form of digital words The Display Controller converts this data into di
49. CREEN FIG 51 TROUBLESHOOTING If any of the above tests do not perform correctly as described above perform the applicable procedure below Test Failed Bit Patterns If the vertical bars are not straight or if the red border is not completely visible either the Microboard Program Jumpers are not configured correctly or for the installed Display or the Microboard is defective All Red All Green All Blue All White or All Black If these tests do not produce appropriate solid color screens the Display Ribbon Cable Display Interface Board Microboard or Display could be defective To locate the defective component perform tests in the following order 1 Display Ribbon Cable Using an Ohmmeter perform a continuity test on all conductors in the ribbon cable An open circuit would indicate the ribbon cable is defective 2 Display Interface Board Using an Ohmmeter perform a continuity test on all conductors of the Interface Board An open circuit would indicate the Interface Board is defective 100 3 00529VIPC Microboard a With the All Red test selected the voltage at Microboard J5 6 through J5 11 Red drivers bits 0 5 as measured to Gnd should be gt 3 0VDC If not the Microboard 15 defective b With the All Green test selected the voltage at Microboard J5 13 through J5 18 Green drivers bits 0 5 as measured to Gnd should be gt 3 0VDC If not the Microboard is defective c
50. Descriptions and Usage ep 19 le L EET 0 T 22 i I OIL AA A LEE 24 29 Individual System Screen 32 34 OOPS EEE 36 Ti weei uay oo nn 38 n N EEEE 40 see 44 l OD a 47 History Details Mereen sone er 48 RCC MEN 49 RU 50 COM ee 92 See 53 Diagnostics 54 Diagnostics 59 Diagnostics RCC Comms Screen 56 Display MeS eS 0 E E 58 SEGHON ER 59 SECTION SERVICE MM 65 ol 65 YORK INTERNATIONAL FORM 50 40 2 System a OE 66 We 08 Microboard Program Jumpers 76 Microboard Program SWIIChes 78 JS 81 Display Boa 87 Display Backlight Inverter Board 89 WO 91 Poser l Y u 0 94 Offline Diagnostics amp Troubleshooting 96 Main Dianos oo EE 97 AOL 98 SR 99 lil or u u uu nu u ux 100 Serial Inputs OQutputs Iesf u REIR Ie
51. EM SYSTEM SCREEN System I Mata locked wut System Run System RUNM WIE 0 0 18 17 D H H 5 Solenoid bypass Mschange 224 PSIG socion Pressure 890 PSIG 75 6 F socion OTT esi 3 1 Condenser Stage load Limit stage Off 39 0 F Ambient System 2 Mata Licked Ont System RUN System RUN O 0 24 17 D H H 5 Solenod Pressure 285 D PSIG Pressure 74 0 PSIG 51 6 F Suction Temperature 3 1 Condenser Fan Stage FIG 11D YCUL CONDENSING UNIT SYSTEMS SCREEN OVERVIEW This screen is accessed from the Unit Screen A chiller can consist of separate refrigerant circuits Each refrigerant circuit is referred to as a system This screen shows system specific information for each of the unit s refrigerant systems This information can vary according to the type of chiller Reference the chiller s Installation Operation Maintenance Manual for details DISPLAY ONLY System Status Displays this refrigerant systems operational status The messages displayed include running status cooling demand fault status external cycling device status load limiting and antirecycle timer status The status message that is displayed on the Unit s microprocessor is represented here System Run LED Displays this refri
52. G SJ LON quvoa YHSLYHAANI LH9I1MOV8 AV ldSId c 31ON A AV 1dSIG adol t ILON OHOIW OQAS GND Od AVM3 IVOOWOIIN SHOLSINH3HL SHSAONGSNVEL TIV 5 DOTVNV OGAS 95 YORK INTERNATIONAL Service OFFLINE DIAGNOSTICS amp TROUBLESHOOTING REFER TO FIG 48 amp 49 The problems that could be encountered in the Control Center are in the following categories Keypad Display Serial Input Output I O Digital Input Output I O Analog Inputs There is a Diagnostic and associated Troubleshooting procedure for each category They are described on the following pages The offline diagnostics are accessed from the Diagnostics Main Screen which 15 entered using the procedure below If there is a Remote Control Center problem determine the category of the problem Then perform the applicable Diagnostic If the Diagnostic reveals a malfunction perform the Troubleshooting procedure to locate the defective component 96 There are several documents that must be referred to while performing the Diagnostics and Troubleshooting procedures Each procedure references the Section and figures of this book that describe the operation of the component being tested The Offline diagnostic screens are only available when the panel is powered on or rebooted with the Diagnostics Enable dip switch in the Enabled position When in
53. K INTERNATIONAL FORM 50 40 OM2 CHANGEABILITY OF THIS DOCUMENT In complying with YORK s policy for continuous product improvement the information contained in this document is subject to change without notice While YORK makes no commitment to update or provide current information automatically to the manual owner that information if applicable can be obtained by contacting the nearest YORK Applied Systems Service office YORK INTERNATIONAL It is the responsibility of operating service personnel as to the applicability of these documents to the equipment in question If there 15 any question in the mind of operating service personnel as to the applicability of these documents then prior to working on the equipment they should verify with the owner whether the equipment has been modified and if current literature is available TABLE OF CONTENTS SECTION PRODUCT 53 8 Chiller Condensing Control Panel s 9 SECTION INSTALLATION 10 EE 10 Installation Chee kl i o 10 IN 10 Lan Transient Installatioii we 14 Eprom Compa 14 T oil SOO i E uu ua ma D EUM UE 14 De 14 Proper Installation Practices 15 SECTION OPERATION ttt 18 Opt View Remote Control 18 Sereen
54. LE LOCKING TAB WIRE pink HOT side DIRECTION C LD04067 FIG 41 DISPLAY SHARP LQ10D367 LAMP REPLACEMENT BEZEL LAMP HOLDER WIRE white GND side RETAINING SCREW WIRE pink HOT side LD06754 DIRECTION C FIG 42 DISPLAY LG SEMICON LP104V2 LAMP REPLACEMENT 86 YORK INTERNATIONAL FORM 50 40 2 DISPLAY INTERFACE BOARD REFER TO FIG 43 The Display Interface Board is located on the Liquid Crystal Display mounting plate and 1s part of the Microboard interface to the Display It permits the use of Displays by different manufacturers by providing the Microboard with a means of automatically determining which Display is present Since different Display manufacturers require different timing and control signals the Display Controller on the Microboard must be configured to meet the requirements of the actual Display installed When AC power 15 applied to the OptiView Remote Control Center as part of the power up sequence the Microboard reads the four Panel ID wire jumpers PIDO through PID3 on the Display Interface Board to determine which Display is present The configuration of these jumpers indicates the actual Display that is installed on the OptiView Remote Control Center door The Display Controller on the Microboard is then configured appropriately On Sharp displays the configuration of wire jumpers P30 and P31 determines whether the Display scan orientation is Normal or Reverse image reversal
55. LLIMETERS mm INCHES in MILLIMETERS mm WEIGHT POUNDS Ib 0 4536 KILOGRAMS kg VELOCITY FEET SECOND fps 0 3048 METERS SECOND m s BHESSUREDBOB FEET OF WATER ft 2 989 KILOPASCALS kPa POUNDS SQ 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 To convert a temperature range 1 e 10 F or 12 F chilled water range from Fahrenheit to Celsius multiply by 5 9 or 0 5556 110 YORK INTERNATIONAL al YORK P O Box 1592 York Pennsylvania USA 17405 1592 Subject to change without notice Printed in USA Copyright by York International Corporation 2001 ALL RIGHTS RESERVED Form 50 40 OM2 601 New Release
56. MI emitted from these devices can interfere with the electronics If you need to add these devices contact the manufacturer for the proper device types and placement YORK INTERNATIONAL FORM 50 40 OM2 Never run refrigerant water or brine tubing inside an electronic control panel A leak could damage or in some cases totally destroy the electronics If the electronic control panel has a starter built into the same panel be sure to run the higher voltage wires where indicated by the manufacturer EMI from the wires can interfere with the electronics if run too close to the circuitry Never daisy chain or parallel connect power or ground wires to electronic control panels Each electronic control panel must have its own supply wires back to the power source Multiple electronic control panels on the same power wires create current surges in the supply wires which can cause controller malfunctions Daisy chaining ground wires allows ground loop currents to flow between electronic control panels which also causes malfunctions See Figure 6 It is very important to read the installation instructions thoroughly before beginning the project Make sure you have drawings and instructions with your equipment If not call the manufacturer and have them send you the proper instructions Following correct wiring procedures will ensure proper installation of your electronic equipment PLANT SUPPLY TRANSFORMER 3 PHASE BUS GROUND BUS
57. Number X X Comp Screw 2 04PM 18 JUN 01 System 1 High Dsch Press Shutdown System 2 No Faults System 3 No Faults System 4 No Faults FIG 29 HISTORY HEADER PRINTOUT EXAMPLE YCAS CHILLER YORK INTERNATIONAL FORM 50 40 2 SECTION 5 SERVICE INTRODUCTION This document explains the operation of the printed circuit boards and major components of the OptiView Remote Control Center to a level that allows a Service Technician to troubleshoot and locate the source of a problem The overall system architecture is described and illustrated with block diagrams This describes the general function of each component and provides the system interface and signal flow The function of each component and signal flow between components must be understood before effective troubleshooting can commence The operation of each printed circuit board 1s described and illustrated with a block diagram that is a simplified representation of board circuitry The expected voltage level at all inputs and outputs of each board for any operating condition 1s provided Included in this document are procedures that have to be performed at commissioning or during service They should not be performed by anyone other than a Service Technician For example calibration procedures have to be performed or verified at commissioning or when a component is replaced Since the operating program supplied in each OptiView Remote Control Center is universa
58. Program Jumper JP2 determines whether this supply voltage is 5 VDC or 3 3 VDC The Display requires a specific power up and power off sequencing to prevent damage During power up the supply voltage must be applied to the Display before the drive signals are applied Similarly during power off sequencing the display drive signals must be removed prior to removing the supply voltage The Display Controller applies the supply voltage and data drive signals to the Display in the proper sequence The Display Controller controls the Display Backlight by applying control signals from Microboard J6 to the Backlight Inverter Board The Backlight Inverter Board converts low voltage DC 12VDC or 5VDC depending on position of 71 Service Program Jumper JP5 to high voltage AC 500 to 1500VAC This high voltage AC is applied to the lamp to cause it to illuminate The Backlight is turned on and off with the Enable Backlight J6 5 signal The position of Program Jumper JP4 determines whether this is a 12VDC or 5VDC signal In some displays the Backlight turns on when this signal transitions from low to high others turn on when it transitions from high to low The position of Program Jumper JP3 determines the transition that will occur when the Display Controller outputs the Enable Backlight signal Program Jumper JP3 must be positioned accord ing to the Display manufacturer s requirement Under Program control the Display C
59. R DESCRIPTION PART NO COMPLETE OPTIVIEW RCC PANEL 371 02750 101 TABLE 5 RENEWAL 5 DESCRIPTION FIG NO QTY PART NO 1 MICROPROCESSOR BOARD NOTE 2 031 01730 002 2 371 02750 411 3 024 30974 001 4 025 35120 000 5 331 02053 000 6 571 02750 421 7 031 02056 000 8 031 01796 001 9 FLASH MEMORY CARD PROGRAMMED 046 031 02057 001 025 34172 000 12 025 35154 000 13 See Note 4 14 See Note 4 15 See Note 4 16 See Note 4 17 031 02055 000 18 031 01586 000 19 031 02076 000 20 031 02074 000 I 025 34592 000 22 371 03609 001 23 EPROM MICROGATEWAY 56 1 See 450 RP1 NOTES 1 The replacement Liquid Crystal Display supplied by YORK might not be by the same manufacturer as the original Display Each Display requires a specific Display Interface Board Item 16 Backlight Inverter Board Item 14 and Backlight Inverter Board ribbon cable 15 Therefore the Liquid Crystal Display is not available separately Service replacement Displays or supporting components must not be arbitrarily selected Non compatibility of components will result in incorrect operation To assure compatible supporting components the Display is supplied as a kit part number 331 02053 000 which contains a replacement Display and all compatible supporting components on a mounting plate For future reference a label attached to the side of the mounting plate Fig 57 lists the YORK part numbers of these compatible components and the required confi
60. R 2 Compressors 031 02013 001 C RCP 23 02 E The software version is printed on a label adhered to the EPROM chip s surface A revision level higher than the one listed in the table 1s acceptable An example version code is as follows C ACS 09 XX Revision Level Increments 01 02 etc Product Code YCAS RCP YCAR MMC YCAL YCUL Commercial YORK INTERNATIONAL 11 Installation OPTIVIEW REMOTE CONTROL CENTER Transient Voltage JP24 JP23 JP22 Suppressor 031 02076 000 JIO x Factory Installed JP27 MICROBOARD petu lie Wrap To help keep wires connected Ferrite 025 35154 000 FCC amp CE Requirement SHIELDED CABLE 500 V MIN INSULATED TOTAL LENGTH NOT TO EXCEED 4000 FT LD06725 FIG 2 FIELD WIRING OPTIVIEW RCC PANEL 12 YORK INTERNATIONAL FROM OPTIVIEW RCC CHILLER CONTROL PANEL UNIT MICROBOARD 031 01095 000 TB7 BAS 6 LAN oas 5 L TRANSIENT E PROTECTION GND 4 EK MODULE 3 031 01586 000 2 COMPONENT SIDE UP 051 02050 001 MICROBOARD TB6 RED 485 LAN gr 25 T TRANSIENT r ae BLK 1 PROTECTION d MODULE GND G Ool 015960 0UU0 LO wr COMPONENT lt 2 SIDE DOWN AS POSSIBLE FORM 50 40 2 TO ADDITIONAL CHILLERS TOTAL NOT TO EXCEED 8 EXIS TING ENT
61. REEN 97 KEYPAD TEST SCREEN 2 2 98 DISPLAY TEST SCREEN 99 BIT PATTERNS TEST SCREEN 100 SERIAL INPUTS OUTPUTS TESTS SCREEN 101 DIGITAL INPUTS OUTPUTS TESTS SCREEN 103 ANALOG INPUTS TEST SCREEN 104 FRONT OF OPTIVIEW RCC sa 107 INSIDE OF OPTIVIEW RCC 107 INSIDE DOOR OF OPTIVIEW RCC 108 LOCATION OF FUSE F1 amp F2 109 YORK INTERNATIONAL FORM 50 40 OM2 ul YORK NrERNATIONAL CORPORATION P O Box 1592 York Pennsylvania USA 17405 1592 EU DECLARATION OF CONFORMITY The EU Directives covered by this Declaration 89 336 EEC Electromagnetic Compatibility Directive amended by 92 31 EEC amp 93 68 EEC 72 23 EEC Low Voltage Equipment Directive amended by 93 68 EEC The Products Covered by this Declaration PRODUCT NAME OptiView Remote Control Center RCC MODEL NUMBER 371 02750 1nn nn is used to define software functionality The Basis on which Conformity is being Declared The product identified above complies with the requirements of the above EU Directives by meeting the following standards EMC Safety FCC Part 15 Conducted 60204 1 1993 Electrical FCC Part 15 Radiated Equipment of Machines EN5501 1 1991 Conducted EN55011 1991 Radiated 61000 3 2 1995 Harmonics EN 61000 3 3 1995 Flickermeter 61000 4 2 1995 Electrost
62. RNATIONAL 61 DipSW 2 l on Printing Columns 40 2 2 on User Font Back up on 2 3 on Character Select normal 2 4 off Zero slash 2 5 on International character set American 2 6 International character set American 2 7 International character set American 2 8 off International character set American DipSW 3 l on Data length 8 bits 3 2 on Parity Setting no 3 3 on Parity condition odd 3 4 on Busy control H W busy 3 5 Baud rate select 1200 3 6 off Baud rate select 1200 3 7 Baud rate select 1200 3 8 off Baud rate select 1200 Settings shown for 1200 Baud Other Baud rates can be selected Refer to Printer manufacturer s manual supplied with Printer OPTIVIEW REMOTE CONTROL CENTER SETUP Number of Units Connected Using the Setpoints Screen enter the number of chiller units to communicate with The identification number of the chiller unit which 15 setup at the unit s control panel can not exceed this number The identification number will appear at the top of each report Printer Setup Using the PRINTER Screen the OptiView Remote Control Center must be configured to transmit data in the same format as the Printer is configured to receive the data The following values must be entered Baud Rate Set as desired Value selected must be the same as Printer configuration above Data Bits 8 Parity None Stop Bits 1 62 Printer T
63. RY CHILLER CONTROL PANEL TBI RED 485 LAN LO PROTECTION TAT SHLD 5 MODULE 031 01586 000 EE COMPONENT SIDEDOWN 191 AS POSSIBLE e 4 EXISTING ENTRY 2 FIELD WIRING OPTIVIEW PANEL CONT YORK INTERNATIONAL LD06726 13 Installation LAN TRANSIENT INSTALLATION The properly installed Lan Transient Protection Module part number 031 01586 000 will limit the voltage levels seen by the chiller control panel s RS 485 driver while allowing normal RS 485 network operation under non transient conditions For installation of the module refer to Fig 2 and the specific installation instructions for the microboard Unit Microboard 031 01314 000 and 031 02050 001 Step 1 Label all wires cables or components con nected to TBI Step 2 Carefully loosen each terminal of TB1 Remove all wires cables or components Be extremely careful to not allow them to short together or to the enclosure Step 3 Refer to the Module Replace all wires cables or components taken from TB into the cor rect terminals of the Module terminal strip J1 being extremely careful to not allow them to short together or to the enclosure Step 4 Carefully tighten all screws on the Module Terminal strip J1 Step 5 Orient the Module as shown component side down and cut the unused pins Insert the four Module pins into TB1 as shown
64. Recip 13 Nov 2000 1 50 PM SYSTEM STATUS SYSTEM SCREEN Locked Out System System Run ime 0 0 33 53 D H H 5 Solenond Discharqe Pressure 292 6 PSIG 98 8 PSIG Pressuje 58 4 F Suction hemp 72 3 F socion Termperatiire 13 3 F Sutiomosuperimeat Pressure 79 7 PSID 70 Motor 221287 106 0 F 2 isad Stage 2 7 Pressure Ratio 81 5 d temperature Bypass solenoid 5 Condenser Fan Stage FIG 12B YCAR CHILLER 32 00509VIPC 00510VIPC YORK INTERNATIONAL OVERVIEW This screen 15 accessible from the SYSTEM screen when there 1s much data to view about an Individual system It displays data only from the selected system Reference the chiller s Installation Operation Main tenance Manual for details about the data Depending on the type of chiller the following data might be displayed DISPLAY ONLY The following system information is displayed at the top of the screen Locked Out LED s System Run Time System Run LED Liquid Line Solenoid LED The following discharge readings are grouped together and displayed Discharge Pressure Saturated Discharge Temperature Discharge Temperature Discharge Superheat The following suction readings are grouped together and displayed Suction Pressure Saturated Suction Temperature Suction Temp
65. Reference Figure 2 and the Installation instructions When the OptiView 15 first turned on it will initialize by requesting current data and history buffer information from the units connected After the history buffers are filled only current data will be continuously requested Every eight hours the OptiView RCC will re initialize If the control panel updates the history buffer a safety shutdown has occurred the control panel will send the chiller shutdown data to the OptiView RCC upon receipt of the next valid OptiView RCC transmission The OptiView RCC will recognize that a safety shutdown has occurred by the Update History Buffer bit being set If this bit is ever 1 the data dump 1s assumed to be a shutdown data dump and the Opti View RCC will update its history buffers with the new data and start a printout of the transmitted data through its RS232 port If the OptiView RCC had been requesting another type of data dump 1 a daily schedule dump the OptiView RCC will repeat its request on the next transmission While at the Home Screen the OptiView RCC will communicate with each unit in order Once a unit has been selected by entering the Unit Screen or any screen below it that unit will be polled between every unit in order This will allow the selected unit to update its information quickly while still maintaining information for the Home Screen A command string 15 used to indicate what data the OptiView RCC 15 r
66. SHARP 10100367 Pins 2 3 3 3VDC LG Semicon LP104V2 displays If this jumper is not correctly installed the display could become damaged JP3 Display backlight enable signal level polarity Jumper must be positioned according to the voltage level required to turn on the Display Backlight Pins 1 2 0VDC Not used Pins 2 3 12VDC or 5VDC as determined by position of 7 4 SHARP LQ10D367 and LG Semicon LP104V2 displays 76 JP4 Display backlight enable signal logic levels Determines the logic levels of the Backlight enable signal Pins 1 2 12VDC 0VD Not used Pins 2 3 5VDC 0VDC LG Semicon LP104V2 displays JP5 Display backlight power Determines the power supply voltage applied to the Display Backlight Inverter Board Pins 1 2 12VDC SHARP LQ10D367 and LG Semicon LP104V2 displays Pins 2 3 5 VDC Not used JP6 Display memory type Jumper must be posi tioned according to type of RAM used for display memory devices U25 amp U27 IN EDO extended data out type Jumper should be IN OUT FPM fast page mode type Not used at this time JP7 JP8 Display brightness control technique Determines whether the display brightness 15 controlled by a variable voltage or variable resistance IN Variable voltage 0 5 0VDC SHARP LQ10D367 and LG Semicon LP104V2 displays OUT Variable resistance Not used JP9 COM 2 serial communications port Configures COM 4 port to be either RS 4
67. SPLAY BOARD 031 01765 001 PLATE LG SEMICON LP104V2 LABEL DISPLAY KIT 331 02053 000 JP2 2 amp 3 JP3 2 amp 3 JP4 2 amp JPS 18 2 IN JP8 IN 031 01789 000 INVERTER CABLE 031 02054 001 BACKLIGHT BULB 025 34564 000 INTERFACE BOARD 031 01765 001 035 17813 002 REV NONE BACKLIGHT INVERTER BOARD 031 01789 000 INVERTER DISPLAY CABLE INVERTER CABLE 031 02055 000 031 02054 001 NOTE LD06752 1 Configure Microboard Program Jumpers per label FIG 39 LIQUID CRYSTAL DISPLAY ASSEMBLY LG SEMICON LP104V2 BACKLIGHT BULB DISPLAY INTERFACE MOUNTING 025 33752 000 LIQUID CRYSTAL DISPLAY BOARD 031 01765 002 PLATE SHARP LQ10D367 LABEL DISPLAY KIT 994501772000 JP2 1 amp 2 JP3 2 amp 3 JP4 2 3 Ure 1422 JP7 IN JP8 IN 031 01789 000 INVERTER CABLE 031 01770 003 BACKLIGHT BULB 025 33752 000 INTERFACE BOARD 031 01765 002 INVERTER 035 15923 003 REV NONE BACKLIGHT INVERTER BOARD 031 01789 000 DISPLAY CABLE NOTE INVERTER CABLE 031 01769 000 1 Configure Microboard Program Jumpers 031 01770 003 per label n FIG 40 LIQUID CRYSTAL DISPLAY ASSEMBLY SHARP LQ10D367 YORK INTERNATIONAL 85 Service BEZEL LAMP HOLDER WIRE PROTRUSION white GND side HO
68. With the All Blue test selected the voltage at Microboard J5 20 through J5 25 Blue drivers bits 0 5 as measured to Grid should be gt 3 0VDC If not the Microboard is defective d With the All White test selected the voltage at Microboard J5 6 through J5 11 J5 13 through J5 18 and J5 20 through J5 25 should be gt 3 0VDC If not the Microboard is defective e With All Black selected the voltage at Microboard J5 6 through J5 11 J5 13 through J5 18 and J5 20 through J5 25 should be lt 1 0VDC If not the Microboard is defective Display If the Display Ribbon Cable Display Interface Board and Microboard check OK per the above procedures the Display is most likely the cause of the problem YORK INTERNATIONAL FORM 50 40 OM2 SERIAL INPUTS OUTPUTS TESTS senal Communications jest Diagnostics Press any of the buttons on the tate the ss pen test Test COM 1 Frogress lt gt JP27 2 3 In Progress Tee gt AX Test COM 2 DIRS DSH Progress gt S Cancel Test FIG 52 This diagnostic is used to verify correct operation of the Serial Data Ports There is a test for each of the five Serial Data Ports Each RS 232 port COM 1 2 and 4b is tested by transmitting serial test data from outputs to inputs of each port Both the transmit and receive functions as well
69. X OPTIVIEW REMOTE CONTROL CENTER OPTIVIEW REMOTE CONTROL CENTER 00497VIP IMPORTANT READ BEFORE PROCEEDING GENERAL SAFETY GUIDELINES This equipment is a relatively complicated apparatus During installation operation maintenance or service individuals may be exposed to certain components or conditions including but not limited to refrigerants oils materials under pressure rotating components and both high and low voltage Each of these items has the potential if misused or handled improperly to cause bodily injury or death It is the obligation and responsibility of operating service personnel to identify and recognize these inherent hazards protect themselves and proceed safely in completing their tasks Failure to comply with any of these requirements could result in serious damage to the equipment and the property in which it is situated as well as severe personal injury or death to themselves and people at the site This document is intended for use by owner authorized operating service personnel It is expected that this individual possesses 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 this document and any referenced materials This individual shall also be familiar with and comply with all applicable governmental standards and regul
70. abels through the different parameters The Y Axis label that is being displayed ls identified at the top of the graph All parameters are displayed simultaneously For identification each plotted parameter and associated Y Axis labeling is color coordinated The parameters are sampled at the selected Data Collection Interval and plotted using 450 data 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 38 Unit Data Trend Setup 00574VIPC There are two types of charts that can be created ONE SCREEN or CONTINUOUS When the plotting has reached the end of the X Axis one of the following will occur depending on which is selected If ONE SCREEN has been selected the trending stops and the data is frozen If CONTINUOUS has been selected the oldest data is dropped from the left hand side of the graph at the next Data Collection Interval Thereafter the oldest data is dropped from left hand side of the graph at each Data Collection Interval Only parameters from the selected Unit are trended The same parameters that have been selected for a Unit will be selected by default for the next selected Unit When on the Home screen a Unit is not selected and any trending is
71. accessed from the UNIT screen displays the total operating hours and the total number of starts for all systems on the unit DISPLAY ONLY Total Starts Displays the number of times the compressor has been started Operating Hours Displays the number of hours the compressor has run YORK INTERNATIONAL FORM 50 40 2 PROGRAMMABLE None NAVIGATION Home Causes an Instant return to the Home Screen Unit Data Causes an Instant return to the Unit Screen 35 Operation OPTIONS SCREEN OPTIONS SCREEN Uptons at Unit Gonna Panel Unis Display Mode Imperial 22 Chilled Ims Glycol Gono Mode Standard 7 Remote Mode Remote Language Display English Dead Lag Control Mode Automatic Fan Contr l Model Ambient amp Discharge Pressure Unit ontto ode Leaving Chilled Liquid Temp Unit Sui a Version CM22 03 00 00513VIPC FIG 14A YCAL CHILLER DATE TAME Unit 1 2 Comp Screw 15 Jun 2000 1 36 PM OPTIONS SCREEN Braun at Unit eu nro Panel Display Mode Imperial BRetigerant 407 mb Water AME Gono Mote Low Ambient Renote Mode Remote Language Display English Unt Sothvane version CA10 09 03 FIG 14B YCAS CHILLER YCAR CHILLER oS 36 YORK INTERNATIONAL OVERVIEW This screen accessed
72. an instant return to the Home Screen System Data Used to provide additional system information Hours Starts This screen shows the cumulative operating hours and start count of each compressor Options Used to provide information of the options that were programmed at the Unit Control Panel Trending This screen provides the user a view of trending data on selected parameters of this chiller condensing unit Setpoints This screen provides a single location to program the unit setpoints for the selected unit History This screen provides access to a snapshot of system data at each of the last 4 6 shutdown conditions 27 This page intentionally left blank 28 YORK INTERNATIONAL FORM 50 40 OM2 SYSTEMS SCREEN EXAMPLES EU SYSTEM 1 STATUS SYSTEM SCREEN System Data BUT MS Locked Ont 8 System System 0 5 24 44 D H H 5 uber Wrschrange Pressure 2790 0 PSIG Pressure 68 0 PSIG 3 3 Condenser Fan Stage Hot Gas Bypass load Limit stage Off 94 6 F Ambient System 2 rata Licked Ont System System Run 0 5 28 44 D H H 5 Solenoid Discharq e Pressure 285 0 PSIG Scion 66 0 PSIG 20 Kunming 3 3 Condenser Fan Stage FIG 11A YCAL CHILLER 00505VIPC Unit 1 2 Comp Recip SYST SYSTEM 1 ST
73. anel is displayed either Automatic or Manual This control is used to select which compressor starts See the unit s Installation Operation and Maintenance Manual for a description Fan Control Mode The fan control at the unit s micro panel 15 displayed either Discharge Pressure or Ambient and Discharge Pressure Unit Control Mode What the chiller condensing unit control is based on is displayed either Leaving Liquid Return Liquid Suction Pressure or Discharge Air Temperature Unit Software Version The software version of the EPROMS at the chiller condensing unit s micro panel PROGRAMMABLE None NAVIGATION Home Causes an instant return to the Home Screen Unit Data Causes an instant return to the Unit Screen 37 TRENDING SCREEN TREND SR EEN FIG 15 TRENDING OVERVIEW This screen is accessed from the UNIT screen As many as six Operator selected parameters can be plotted in an X Y graph format The X Axis is scaled per the selected Data Collection Interval and displayed in a time of day or elapsed time format as selected with the X axis toggle key The Y Axis is scaled for each parameter per the selected minimum and maximum value for each parameter Analog parameters are scaled in pressure temperature volts amps hertz or time Digital on off parameters are scaled as zero off and one on Only one Y Axis label is displayed at a time The Y Axis Toggle Key is used to toggle the Y Axis l
74. as shown on Fig 2 This must be installed to meet FCC and CE requirements e Make sure thatthe Transient Voltage Suppressors are installed at J12 One is installed from to GND and one is installed from to GND AtJl2 ofthe Opti View RCC red wire on RS485 black wire on RS485 and white wire on Ground At the OptiView RCC connect the shield to the panel Use a tie wrap between the J12 connector and the Ferrite part number 025 35154 000 to secure the shielded cable to the OptiView RCC The tie wrap can help prevent the wires from being accidentally pulled out of the J12 connector by someone working in the panel or by the weight of the ferrite Install a LAN transient protection module at the chiller condenser control panel and connect the cable according to the type of control panel Make sure the correct EPROM is installed at the chiller condenser control panel s See Table 1 From the Setpoints Screen of the OptiView RCC enter the Number of Units Connected Maximum value allowed 15 8 10 At the chiller condenser control panel that uses a rotary switch to set the ID use a small screw driver to rotate the rotary switch so that the arrow points at the number that coincides with the Unit s Identification number ID Unit 1 Unit 8 coincide to rotary switches 0 7 Otherwise program the panel s ID through keypad entry Never skip D For example if you have fou
75. atic Discharge 61000 4 3 1997 Radiated RF EM Field AM Modulation ENV 50204 1995 Radiated RF Field Pulse Modulation 61000 4 4 1995 Electrical Fast Transient Burst 61000 4 5 1995 Surge Immunity 61000 4 6 1996 Conducted RF Disturbances EN 61000 4 8 1993 Power Frequency Magnetic Field The technical documentation required to demonstrate that the product meets the requirements of the EMC Directive and Low Voltage Directive has been compiled by the signatory below and is available for inspection by the relevant enforcement authorities The CE mark was first applied in 2000 The products described above comply with the essential requirements of the directives specified European Contact U S Contact Signature amp Date As i Any 22 2o Printed A AGVACCA Function 7X6 7 DEStEN JA Signature amp Date dO Fana 12 Printed J C HANSEN Function KNGINGERUNG MANAGER ATTENTION The attention of the specifier purchaser installer or user is drawn to special measures and limitations to use which must be observed when the product is taken into service to maintain compliance with the above directives Details of these special measures and limitations to use are available on request and are also contained in the product manuals FOR COMPLIANCE INFORMATION ONLY European Contact Head of ESG product design amp development Europe Gardine
76. ations pertaining to the task in question SAFETY SYMBOLS The following symbols are used In this document to alert the reader to areas of potential hazard DANGER indicates an imminently hazardous situation which if not avoided will result in death or seri ous injury DANGER WARNING indicates a potentially hazardous situation which if not avoided could result in death or serious injury WARNING WARNING CAUTION identifies a hazard which could lead to damage to the machine damage to other equip ment and or environmental pollu tion Usually an instruction will be given together with a brief explanation AN CAUTION NOTE ts used to highlight additional information which may be helpful 10 you NOTE External wiring unless specified as an optional connection in the manufacturer s product line is not to be connected inside the micro panel cabinet Devices such as relays switches transducers and controls may not be installed inside the micro panel No external wiring is allowed to be run through the micro panel All wiring must be in accordance with YORK s published specifications and must be performed only by qualified YORK personnel YORK will not be responsible for damages problems resulting from improper connections to the controls or application of improper control signals Failure to follow this will void the manufacturer s warranty and cause serious damage to property or injury to persons YOR
77. creen Except for the Home Screen display the upper right soft key will always return the user to the Home Screen Navigating with soft keys is as simple as pressing the key next to the label containing the name of the desired screen The system will immediately refresh the display with the graphics for that screen Following is a layout of all the screens and how they are connected Home page 22 Unit Data page 24 L System Data page 29 Individual System page 32 Hours Starts page 34 Options page 36 H Trending page 38 Trend Setup page 40 Setpoints page 44 History page 47 History Details page 48 RCC Setpoints page 49 L RCC Setup page 50 E Comms page 52 Printer page 53 L 54 Diagnostics I O page 55 L Diag RCC Comms page 56 FIG 8 SCREEN NAVIGATION LAYOUT This section of the manual will describe each screen in the order they are accessed as shown ln this screen navigation layout 20 YORK INTERNATIONAL FORM 50 40 OM2 This page intentionally left blank to maintain formatting YORK INTERNATIONAL 21 HOME SCREEN HOME SCREEN Unit Temperate 45 0 F 45 2 F Average Ambient F 45 0 F 45 2 F ELA ITEM ETES ETEA 49 6 F _43 6 F Setpoints DATE TAME 18 Oct 2000 ET Unit status UM Uu pue Uus Uu Unii Unii Unit
78. d of the HSYNC pulse and the drive signals are terminated a fixed number 16 of CLK cycles prior to the next HSYNC pulse In DISPLAY ENABLE mode the pixel drive signals are applied to the pixels only while ENABLE signal 15 present This signal is typically present 4 48 CLKS after the end of the HSYNC pulse and 2 16 CLKS prior 81 Service to the next HSYNC pulse All YORK applications operate In the DISPLAY ENABLE mode The state of the ENABLE Display Interface Board J1 27 signal from the Microboard places the Display in the desired mode as follows LG SEMICON Display does not have the fixed mode feature As described above in OptiView Control Center applications the Display scan is left to right beginning with the top row and continuing sequentially through the rows to the last row However in Display applications other than OptiView Control Centers image reversal is sometimes required In image reversal applications the scan is reversed the scan is right to left beginning with the last row and proceeding to the top row Displays by different manufacturers can require different timing and control signals The Microboard must know which Display is present in order to provide the correct signals Therefore when AC control power is first applied to the OptiView Control Center as part of the power up sequence the Microboard reads the Panel ID wire jumpers P1DO P1D3 on the Display Interface Board and determines which Di
79. d the user is advised of the operating conditions by various status and warning messages A complete listing of shutdown status and warning messages is within the chiller condensing unit s operation manual If the chiller condensing unit is in remote control mode the OptiView Remote Control Center provides the capability to program the following 1 Start Command 2 Stop Command 3 Local Setpoint 4 Local Control Range 5 Daily Holiday Schedule 6 Current or Load Limit Setpoint The Remote Control Center is also designed to enable the user to obtain chiller condensing unit printouts directly from this panel This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reason able protection against harmful interference when the equipment is operated in a commercial environ ment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruc tion manual may cause harmful interference to radio communica tions Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense NOTE YORK INTERNATIONAL CHILLER CONDENSING CONTROL PANEL S All communication with the chiller condensing units will occur over a single RS 485 port
80. e RCC Setup Screen None This screen provides a view of what software 15 in use and provides access to a screen for troubleshooting NAVIGATION analog and digital inputs DISPLAY ONLY Home Causes an Instant return to the Home Screen Software Versions The following software versions are displayed Setup RCC FLASH Memory Card on Microboard Return to the Setup Screen BIOS BIOS EPROM on Microboard Kernel Software that is part of FLASH Memory VO Cad Moves to the sub screen allowing diagnostics of the e GUI Software that is part of FLASH Memory analog and digital inputs Card e SIO Software that is part of FLASH Memory RCC Comms Card Moves to the sub screen allowing diagnostics of communications with the RCC 54 YORK INTERNATIONAL DIAGNOSTICS SCREEN Voltage fount O ooo 7 T ooov o FIG 25 OVERVIEW This screen is accessed from the Diagnostics Screen This screen provides a view of the analog and digital inputs for troubleshooting DISPLAY ONLY Diagnostics is used to analyze the Analog Inputs at the Microboard The voltage level of each Analog Input as interpreted by the Microboard is displayed Counts is an Analog to Digital A D converter value and 15 for manufacturing and engineering use only Diagnostics 15 also used to analyze the state of each Microboard Program Jumper and Program DIP Switch as interpreted by the Microboard These are depicted by an LED
81. e type of DRAM device installed in the Microboard JP6 in EDO out FPM Refer to Table 2 Program Jumpers Depending upon the requirement there could be one or two DRAM devices installed in the Microboard If the design requires only one DRAM it is installed in socket U27 If an additional one is required it is installed in socket U25 During the power up sequence the program in the BIOS EPROM reads Program Jumper JP6 to determine the type of Display DRAM installed as explained above It also reads wire jumpers PIDO through PID3 via Microboard J5 on the Display Interface Board to determine the manufacturer of the display refer to description of Display Interface Board Each display manufacturer requires a slightly different control The program in the BIOS EPROM then configures the Display Controller for operation with the actual display that is present Different Display manufacturers can require different supply and control voltages for their displays and backlights Program Jumpers JP 2 through 4 and 5 through 8 must be configured to provide the required supply and control voltages to the display and backlight control Table 2 lists the required Program Jumper configuration for the Display Also a label attached to the Display mounting plate lists the required Program Jumper configuration for that particular Display The power supply voltage that operates the Display is provided by the Microboard J5 The position of
82. ected for this data point is a digital type on off this value must be set to zero 0 Zero indicates the OFF state YORK INTERNATIONAL FORM 50 40 OM2 Data Point Max 1 6 Only displayed if the associated slot number is not zero This is the maximum value displayed for the Y Axis Selecting a parameter for a Data Point sets this to the default value which 1s the highest value allowed for that parameter It can be changed to a value that provides a more appropriate resolution for the parameter being monitored To change use the SELECT key as described above and enter the desired value The value must always be set to a value greater than the Data Point Min Otherwise a red graph is displayed on the Trend Screen with the words TREND MAX MUST BE TREND MIN There are 20 Y axis divisions If a MIN MAX span is selected that 1s not evenly divided by 20 the Program will automatically select the next higher MAX value that makes the span evenly divided by 20 For example if 0 0 is selected as the MIN and 69 0 as the MAX the Program will insert 70 0 as the MAX value If the parameter selected for this data point 1s a digital type on off this value must be set to one 1 One indicates the on state NAVIGATION Home Causes a return to the Home Screen Unit Data Causes a return to the Unit Screen Trending Causes a return to the Trending Screen Slot Numbers Causes a jump to the Trend Common Slots Screen The slot number
83. ed chiller units chiller unit subsystems and system parameters The chiller and working components of the chiller are displayed along with chiller operating pressures and temperatures The Keypad is used to select displays showing increasing levels of detail of chiller working components A self contained Power Supply supplies the necessary DC voltages for all the components within the Remote Control Center Serial data interface to the YORK ISN Building Automation System ls through the J12 connector YORK INTERNATIONAL FORM 50 40 OM2 ddMOd cvl9001 OGA S 1 VIVG IWIYAS S8T Su c c SH dHVOg OYIN LNO NI MOH V1VG AV 1dSIq 104 LNO9 Qvd 3 quvog JOVJ3H3 LNI AV 1 dSIGg quvog d3ld3ANI IHOSITMOVS8 0 Sis AV 1dSIG WLSAYO 67 YORK INTERNATIONAL Service MICROBOARD REFER TO FIG 31 36 The Microboard contains the operating software Program microprocessor Micro and supporting circuits for the Micro The Program is a set of instructions to control remote chillers and the display It also contains the Display messages and screens It 1s stored in a memory device called a flash memory card This is a type of nonvolatile memory that can be read from or written to but requires the locations to be erased before they are written to With the exception of a write read sequence that
84. equesting and to modify control data in the chiller control panel If the chiller condensing unit is in remote control mode then its Local Set Point Local Range Daily Schedule Holiday Start YORK INTERNATIONAL FORM 50 40 OM2 Stop Command and Current Load Limit can be programmed from the OptiView RCC The Opti View RCC will send a command string once any of these are modified at the OptiView RCC If the OptiView RCC sends a Stop command the chiller condensing unit will turn off If the OptiView RCC sends a start command the chiller condensing unit will be allowed to run if all the other run requirements of the unit are made A chiller condensing unit that is in remote control mode will use local control set points and start stop information if a valid transmission has not been received for 5 minutes from the OptiView RCC The remote commands will be used again once a valid new transmission has been processed The OptiView RCC will display an error message indicating the communications problem when such a condition occurs A general status message for each unit 1s displayed on the Home Screen The messages displayed will include communications status Not Initialized will be displayed upon power up for all units until the OptiView RCC begins to poll and receive data from that unit Initializing will be displayed while the Opti View RCC is polling a unit for all current schedule and history data the first time after powe
85. erature Suction Superheat The following oil readings are grouped together and displayed Oil Pressure Low Differential Oil Pressure High Differential Oil Pressure Oil Temperature YORK INTERNATIONAL FORM 50 40 OM2 The following miscellaneous readings are grouped together and displayed Motor Current FLA Slide Valve Step or Load Stage Pressure Ratio Ambient Temperature The following miscellaneous information 15 displayed separately Economizer Solenoid LED Hot Gas Bypass Solenoid LED Oil Cooling Solenoid LED Condenser Fan Stage PROGRAMMABLE None NAVIGATION Home Causes an instant return to the Home Screen Unit Data Causes an instant return to the Unit Screen System Data Causes an instant return to the System Screen 33 Operation HOURS AND STARTS SCREEN SYSTEM SCREEN Vital Stans Operatimg Hours System Systemi 1 5 2 1 3 Hr Compressor 3 oT es 2 Compressors 4 Compressors 3 Hr System SYSTEM 2 Compressor 1 4 Compressor 1 2 Hr Compressor 2 4 Compressor 2 3 Hr Compressors 3 Lomplessurs 3 Hr FIG 13A YCAL CHILLER 00511VIPC DATE TIME Unit 1 2 Comp Screw 715 Jun 2000 1 35 PM SYSTEM SCREEN Stans Upenaung Systemi 689 systemi 5273 Hr System 2 642 System 5307 Hr 00512VIPC FIG 13B YCAS CHILLER 34 YORK INTERNATIONAL OVERVIEW This screen
86. esigns These manufacturers require that certain installation precautions be taken to protect the electronics from these effects All electronic equipment must be viewed YORK INTERNATIONAL FORM 50 40 OM2 as sensitive instrumentation and therefore requires careful attention to proper installation procedures There are a few basics that if followed will result in a trouble free installation The National Electric Code N E C 15 a guideline for safe wiring practices but it does not deal with procedures used for electronic control installation Use the following procedures for electronic equipment installation These procedures are to be used in conjunction with the N E C Wire Sizing Size supply wires one size larger than required for amperage draw to reduce instantaneous voltage dips caused by large loads such as heaters contactors and solenoids Sudden dips in voltage can cause the processor to momentarily malfunction or cause a complete reset of the control system If the wire is loaded to its maximum capacity the voltage dips are much larger and the potential for malfunction 15 very high If the wire is sized one size larger than required the voltage dips are smaller than in a fully loaded supply wire and the potential for malfunction is much lower The NEC code requires specific wire sizes to be used based on current draw An example would be to use 14 gauge wire for circuits up to 15 amp or 12 gauge wire for circu
87. eys to select the desired value If the previously defined setpoint is desired press the X Cancel key to dismiss the dialog box 3 Press the Enter key If the value is within range it is accepted and the dialog box disappears The chiller will begin to operate based on the new programmed value If out of range the value will not be accepted and the user is prompted to try again Manual Controls Some keys are used to perform manual control functions These may initiate terminate processes such as a report 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 key is pressed to bring up a dialog prompting the user to enter a new setpoint value The X key cancels cursor mode See Change Schedule from the Setpoints Screen for an example 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 each unit s operation In order to move from one screen to the next navigation keys have been defined These keys allow the user to either 19 move forward to a sub screen of the present screen or move backward to the previous s
88. f dropped 2 The display front surface is easily scratched If soiled wipe with a dry cotton cloth Use no water or chemicals 3 The display is static sensitive Electrostatic dis charges may damage the display 4 A laminated film is adhered to the display front glass surface to prevent it from being scratched Peel off very slowly to prevent static damage Always remove control power from N the OptiView Remote Control Center before connecting or disconnecting Wires to the display Connecting or disconnecting wires to the display with power applied will damage the display BACKLIGHT LAMP REPLACEMENT SHARP 10100367 Display Refer to Fig 41 Removal The Lamp slides into the Display from left to nght and is secured with a locking tab 1 Remove Control Power from the Opti View Control Center 2 Remove protective cover from rear of Display 3 Disconnect Lamp AC power connector from Backlight Inverter Board YORK INTERNATIONAL FORM 50 40 OM2 4 Using fingernail or thin flat blade screwdriver bend the locking tab outward slightly to clear the Lamp housing protrusion 5 Grasp Lamp AC power connector and gently pull until Lamp housing clears locking tab 6 Grasp Lamp housing and pull until Lamp housing is completely removed from the Display Installation 1 Slide new Lamp into Display from left to right until Lamp housing protrusion locks into Display locking tab 2 Connect Lamp AC power connector to Backl
89. f this book Procedure 1 Press each keypad key As the key 15 pressed an illuminated LED is displayed corresponding to the key location on the keypad 2 Press the DIAGNOSTICS key to return to the MAIN DIAGNOSTICS Screen Troubleshooting If an LED is not displayed when a key is pressed the Keypad Keypad ribbon cable or Microboard could be defective Use the following procedure to locate the defective component 1 Keypad a Disconnect the ribbon cable from the Keypad b Identify row column coordinate of the key to be tested Refer to Figure 46 98 Diagnostics 00568 the Keypad connector locate the pins of the row column coordinate of the key of the key to be tested d Insert the leads of an Ohmmeter into the pins identified in step c above e Press the key to be tested If the contact resistance is gt 100 Ohms the Keypad is defec tive f Release the key If the contact resistance is lt 1 Meg Ohm the Keypad is defective Ribbon Cable Using an Ohmmeter perform a continuity test on all conductors in the ribbon cable An open circuit would indicate the ribbon Cable is defective Microboard There are no checks or measurements to be made on the Microboard If the Keypad and Ribbon Cable check OK per the above procedures the Microboard is most likely the cause of the problem YORK INTERNATIONAL FORM 50 40 OM2 DISPLAY TEST Graphics Display est Press
90. gerant systems operational status Is ON when the system is running Locked Out LED Is ON when a system 15 locked out on a fault requiring a manual reset at the chiller or condenser unit micro panel System Run Time Displays the amount of time the system has run Temperatures and pressures are either measured directly by transducers and temperature sensors or computed from these measurements Depending on the type of chiller the following temperatures and pressures could be displayed Discharge Pressure Oil Pressure Suction Pressure Oil Temperature Discharge Temperature Suction Superheat e Saturated Discharge Temperature Discharge Superheat Suction Temperature Saturated Suction Temperature Motor Current This displays the motor current of the system In percent of full load amps Slide Valve Step If screw This indicates the compressor slide valve step Compressors Running If more than one compressor per circuit Indicates the number of compressors running Load Limit Stage Indicates which stage of Load Limiting a unit is in Load Stage Indicates the number of solenoids on the compressor of aYCAR unit that are de energized and loaded Condenser Fan Stage Displays the stage of condenser fan operation on the system Cooler Inlet Refrigerant temperature Only if in R 407c mode Displays the refrigerant temperature at the inlet of the cooler Liquid Line Solenoid LED
91. gin Log Output Interval Define the interval at which logging will occur We suggest you select a reasonable amount of time so that it is not occurring too much Log Unit Selected Select a unit or all units to logs of YORK INTERNATIONAL 1 Home Setup Automatic Printer Logging Enabled Log Start Time 9 19 1440 Min Log Output Interval Unit 3 Log Unit Selected Seiko Printer Type Stop Bits 00523VIPC Printer Type Define the printer type connected to the OptiView RCC Printer Baud Rate Define the baud rate at which the panel shall com municate to the printer Printer Data Bit s Define the number of data bits with which the panel shall communicate to the printer Printer Parity Bit s Define the number of parity bits with which the panel shall communicate to the printer Printer Stop Bit s Define the number of stop bits with which the panel shall communicate to the printer Cancel Print Terminates the printing in process This key 15 only visible while printing 15 In process NAVIGATION Home Causes an instant return to the Home Screen Setup Return to the Setup Screen 53 DIAGNOSTICS SCREEN AE TE Home DIAGNOSTICS SCREEN Setup Hi C N09 01 00 BIOS C 201 00 00 Kennel 0 18 0 31 510 0 22 RCC Comms FIG 24 00524VIPC OVERVIEW PROGRAMMABLE This screen is accessed from th
92. guration of the Microboard Program Jumpers These Program Jumpers must be configured for this Display by a qualified Service Technician following instructions in this manual The contents of the kit are as follows Liquid Crystal Display Backlight Bulb Item 13 Appropriate Display Interface Board Item 16 for Display Appropriate Display Interface Board ribbon cable Item 17 for Item16 Appropriate Backlight Inverter Board Item 14 for Display Appropriate Backlight Inverter Board ribbon cable Item 15 for Item 14 All mounting hardware 207020009590 Installation instructions 2 Replacement Microboards are shipped without Flash Memory Cards U46 or BRAM U52 Remove these devices from defective Board and use them in replacement Board If a new Eprom Flash Memory Card or BRAM is required refer to the previous table for part number Return all unused Flash Memory Cards with Warranty return boards 3 Ferrites are shipped in cloth bag They are applied to the chiller communication RS 485 cable and the MicroGateway LAN cable prior to exiting the Remote Control Center enclosure 4 Refer to label Fig 57 on Display mounting plate for YORK part number of applicable replacement part Service replacement Display supporting components must not be arbitrarily selected Non compatibility of components will result in incorrect operation 106 YORK INTERNATIONAL FORM 50 40 OM2 a e ai AM m e x eem 4 L 3
93. ight Inverter Board 3 Apply Control Power to OptiView Control Center LG Semicon LP104V2 Display refer to Fig 42 Removal The Lamp slides into the Display from left to right and is secured with a screw 1 Remove Control Power from the OptiView Remote Control Center 2 Remove protective cover from rear of Display 3 Disconnect Lamp AC power connector from Back light Inverter Board 4 Using small Phillips screwdriver remove lamp retaining screw 5 Grasp Lamp AC power connector and gently pull until Lamp housing is completely removed from the Display Installation 1 Slide new Lamp into Display from left to right until Lamp housing is fully inserted 2 Secure Lamp with Lamp retaining screw 3 Connect Lamp AC power connector to Backlight Inverter Board 4 Apply AC power to OptiView Remote Control Center 83 Service LD06751 FIG 37 DISPLAY MOUNTING 480 ROWS lt T 16MS VSYNC HSYNC 2 ROW 1 ROW 2 ROW 480 FP 640 M COLUMNS 2 DISPLAY DISPLAY DISPLAY ENABLE PERIOD PERIOD PERIOD EN 640 CLKS CLK NOTES 25 18 finn 1 BP Back Porch 4 48 CLKS MHz I 2 FP Front Porch 2 16 CLKS B 9 LD04066 FIG 38 LIQUID CRYSTAL DISPLAY TYPICAL CONTROL SIGNAL TIMING 84 YORK INTERNATIONAL FORM 50 40 OM2 BACKLIGHT BULB DISPLAY INTERFACE MOUNTING 025 34564 000 LIQUID CRYSTAL DI
94. ime The Time of Day scaling is in 24 hour format The Elapsed Time scaling 1s the time elapsed since the START key was pressed starting the trending NAVIGATION Home Causes a return to the Home Screen Unit Data Causes a return to the Unit Screen Trend Setup Only displayed if the trending 15 stopped Causes a jump to a sub screen for configuring the trending display 39 TREND SETUP SCREEN 25 Apr 2001 ET Home TREND SETUP SCHEEN Slut Return Chilled Liquid Temperature Minimum Slot Leaving Chilled Liquid Temperature Minimum Slot FIG 16 TREND SETUP OVERVIEW This screen is accessed from the Trending screen This screen is used to configure the trending screen The parameters to be trended are selected from the Common Slots Screen or Common Slots Master list and entered as Slot Numbers for Data Points 1 through 6 The Y Axis minimum and maximum values for each parameter are entered as Data Point Min and Data Point Max for Data Points 1 through 6 The interval at which all the parameters are sampled is selected as the Data Collection Interval DISPLAY ONLY None PROGRAMMABLE Chart Type Selects either CONTINUOUS or ONE SCREEN type of graph Collection Interval Selects the interval at which the parameters are sampled There are 450 data points displayed across the X Axis of the graph Each point represents the instantaneous value of the parameter The user selects the time interval
95. ion of this book for details of the Printer connections and setup DISPLAY ONLY RS 485 Baud Rate 4800 Shows the baud rate at which the panel shall com municate through the Com3 port to the remote control panel s The baud rate of the remote control panel s must be set for 4800 in the EPROM Make sure the correct EPROM 15 installed at the chiller condenser control panel s See Table 1 52 3 Jan 2 1 ae Home Setup RS 465 Baud Rate 4800 RCC Poll Time 5 00522VIPC PROGRAMMABLE RCC Poll Time 5 30 sec Define the poll time how frequently this panel requests for data from another panel through the Com3 port NAVIGATION Home Causes an instant return to the Home Screen Setup Return to the Setup Screen YORK INTERNATIONAL FORM 50 40 OM2 PRINTER SCREEN DATE TIME PRINTER SCREEN Printer Setup Baud Rate Data Bits 4800 g FIG 23 Parity None OVERVIEW This screen is accessed from the RCC Setup Screen This screen allows definition of the necessary com munications parameters for the printer Refer to PRINTER section of this book for details of the Printer connections and setup DISPLAY ONLY None PROGRAMMABLE Automatic Printer Logging Enabled Disabled Enable the printer to begin printing status reports beginning at the programmed start time and recurring at the interval defined above Log Start Time Set the time at which scheduled logs will be
96. is dedicated to all the Microboard Analog circuits and is labeled 94 as the 5VDC Analog supply It is also routed to all Temperature Thermistors This permits all Analog circuits to be powered by the same supply eliminating any offsets caused by voltage regulator drift The 3 3VDC supply is utilized by the Microprocessor Flash Memory Card and other digital circuits It could also be applied to the Backlight Inverter Board depending on the Display manufacturer s requirements as explained next Different Display manufacturers can require different supply voltages for their display and supporting circuits To accommodate the different Display manufacturer s voltage requirements Microboard Program Jumpers JP2 and JP5 must be positioned to provide the required supply voltages to the Display and the Display Backlight Inverter Board Either 5VDC 3 3VDC as determined JP2 is applied to the Display Either 12VDC or 5VDC as determined by JP5 is applied to the Display Backlight Inverter Board Refer to Table 2 Microboard Program Jumpers YORK INTERNATIONAL FORM 50 40 OM2 SNOILO3NNOO 3MIM INVHOVIG YSLNAO OL H3434 NOILNEINLSIG H3MOd AlddNS H3MOd Zt 914 sjueuJeJinboJ 9 1819001 Jedunf pJeodoJollN Aq peuruuejep se OSGAS JO Z 7 sjueujeJinboJ 9 Jeduunf WeJ6oJd pJeoqoollIN peuiruuejep se OG AE E JO
97. it for all current schedule and history data the first time after power up While this message is displayed the unit s button will be disabled not allowing it to be selected Loss of Comms will be displayed after 5 minutes have elapsed with no response from a previously initialized unit While this message is displayed the unit s button will be disabled not allowing it to be selected Running will be displayed when at least 1 system 15 running on a unit with no faults on any system This message will be displayed even if the chiller is in any kind of limiting as long as there are no faults present While this message is displayed the unit s button will be enabled allowing it to be selected Not Running will be displayed when no systems on the unit are running for a non fault reason but can run when demand requires This would be for the No Cool Load state While this message is displayed the unit s button will be enabled allowing it to be selected Faulted will be displayed when no systems on the unit are running and there is a fault on one or more systems or a unit fault While this message YORK INTERNATIONAL Is displayed the unit s button will be enabled allowing it to be selected Running Faulted will be displayed when at least one system on the unit is running and at least one system is faulted While this message is displayed the unit s button will be enabled allowing it to be selected Cannot
98. it screens On the Home Screen the message will read YORK REMOTE CONTROL CENTER On all other screens it will contain the unit selected and either the chiller type or will be based on the number of compressors of that unit When a unit has been selected the title bar will display a dual message on every screen The first message will display the Unit Selected in the format Unit x where x is the number 1 8 of the unit selected The second message will display the chiller type whether it is a Screw Recip or Scroll and the number of compressors On the Unit Screen and all System Screens the title bar contains another message called a Status The current status of each unit is displayed in this message These messages will include running status cooling demand fault status external cycling device status load limiting and anti recycle timer status etc A System Status message and a Unit Status message are never displayed simultaneously A single message is displayed for a Unit Status message while a separate System Status message will display for each system on multi circuit units Status messages fall into the categories of warning safety and normal with each of the categories discussed following Warning messages are denoted by yellow message text A warning message 15 shown for any special running condition and for all unit warnings Any kind of load limiting would be an example of a warning
99. its of up to 20 amp Therefore when connecting the power feed circuit to an electronic industrial control use 12 gauge wire for a maximum current draw of 15 amp and 10 wire for a maximum current draw of 20 amp Voltage Source Figure 3 Selecting the voltage source is extremely important for proper operation of electronic equipment in an industrial environment Standard procedure for electronic instrumentation 15 to provide a clean separate source voltage in order to prevent EMI from other equipment in the plant from interfering with the operation of the electronic equipment Connecting electronic equipment to a breaker panel also known as lighting panels and fuse panels subjects the electronic equipment to noise generated by other devices con nected to the breaker panel This noise is known as electromagnetic interference EMI EMI flows on the wires that are common to a circuit EMI cannot travel easily through transformers and therefore can be isolated from selected circuits Use a control transformer to isolate the electronic control panel from other equipment in the plant that generate EMI 15 Installation GROUND CONTROL TRANSFORMER EL NONISOLATED CIRCUIT ELECTRONIC CONTROL INCORRECT CONTROL TRANSFORMER J J GROUND ISOLATED CIRCUIT ELECTRONIC CONTROL FIG 3 CONTROL INSTALLATION Grounding Grounding is the most important factor for successful operatio
100. l to all applications special setpoints program jumpers and program switches are required to configure the OptiView Remote Control Center for this locations operating conditions YORK INTERNATIONAL A System Commissioning Checklist is provided as reference of items to be performed during control panel commissioning Diagnostic Routines allow service analysis of the following functions Display Analog inputs Dip switches and jumpers Before beginning any troubleshooting observe all display messages The conditions required to produce the message must be clearly understood before proceeding If this is not heeded much time will be wasted Armed with a knowledge of the overall system architecture and the function of each printed circuit board and signal flow provided by this manual proceed with the appropriate Wiring Diagram listed above to trace the problem through the system Use the Diagnostic Routines where appropriate 65 Service SYSTEM ARCHITECTURE REFER TO FIG 28 The OptiView Remote Control Center RCC performs the following functions Displays chiller operating conditions alarms shutdown messages and history data Accepts operator programmed setpoints Provides chiller operating data and status to remote devices via serial communications e Allows real time data and history data to be printed on an optional printer The RCC is a microprocessor based control system that recei
101. message An incorrect refrigerant programmed warning would also be an example of a warning message Safety messages are denoted by red message text A safety message is shown for any type of safety shutdown lock out or run inhibit High discharge pressure would be an example of a safety shutdown message e Normal messages are denoted by green text A normal message is shown for any non fault normal condition The compressor running and no cooling load messages would be examples of normal messages 58 Note that there are two types of shutdowns If the chiller shuts down on a SAFETY shutdown it requires the operator to perform a manual reset at the keypad A NORMAL shutdown occurs from a properly requested or scheduled shutdown The event that caused the shutdown 15 displayed on the Status Line STATUS MESSAGES Status messages will be much like those displayed at the chiller panel Explanation of these displays will be outlined in the Installation Manual for each specific chiller Subtle differences may be noted in the exact wording displayed versus the display which is shown on the chiller panel An example of this 1s apparent in the anti recycle and anti coincidence timers In the case of these messages the chiller control panel indicates actual time left on the timers The OptiView Remote Control Center will only indicate that the timers are Active The new message Loss of Communications indicates that the communicati
102. n Electronic equipment reacts to very small currents and must have a good ground in order to operate properly The NEC states that control equipment may be grounded by using the rigid conduit as a conductor This 1s not acceptable for electronic control equipment Conduit is a poor conductor compared to a copper wire Copper grounds are required for proper operation Ground Wire Size Figure 4 The ground wire must be the same size as the supply wires or one size smaller as a minimum The three phase power brought into the plant must also have a ground wire making a total of four wires In many installations that are having electronic control problems this essential wire is usually missing A good ground circuit must be continuous from the plant source transformer to the electronic control panel for proper operation Driving a ground stake at the electronic control will cause additional problems since other 16 equipment in the plant on the same circuits will ground themselves to the ground stake causing large ground flow at the electronic equipment w w_ ws 3 PHASE L BUS PLANT SUPPLY rk TRANSFORMER ALUMINUM OR COPPER COPPER ELECTRONIC CONTROL LD06728 FIG 4 GROUNDING Wiring Practices Figure 5 Do not mix wires of different voltages conduit For an example refer to Figure 5 The motor voltage 15 480 volts and the panel control power is 120 volts The 480 volt circuit must be run from
103. nd J6 8 would vary from 0 ohms 0 brightness to 10K ohms 100 brightness 72 The PC 104 Port J16 amp J17 1s an Industry standard arrangement of two connectors that allows the stacking of 3 6 x 3 8 inch printed circuit boards PC 104 Modules on the Microboard The circuits on these boards have access to the Microboard s address data bus and therefore become an extension of the Microboard This provides expansion of the Microboard s capabili ties without redesigning or changing the size of the Microboard PC 104 Modules are not used in all Remote Control Center applications System temperatures in the form of analog DC voltages from temperature thermistors are input to the MUX multiplexers Under Program control the Micro selects these values one at a time for input to the Analog to Digital A D converter As each one is selected it is passed to the A D Converter for conversion to a 12 bit digital word that is then input in parallel form to the Micro The Micro stores each value in the DRAM for display requests further processing or Serial Port transmission Each value is also stored in the BRAM for History data Service Replacement Microboards are supplied as Service Replacement parts without the following components e BRAM U52 e Flash Memory Card U46 e BIOS EPROM U45 Upon receipt of the replacement Microboard remove these components from the Board being replaced and install in the replacement Board
104. ng of the time and date along with specifications as to how the time will be displayed 12 or 24 hour format This time is used for display purposes on the OptiView Remote Control Center It is not used to reset individual chiller clocks and has no effect on individual chiller schedules This screen also serves as a gateway to more sub screens for defining general RCC system parameters DISPLAY ONLY None PROGRAMMABLE Clock Enabled Disabled Allows the user to enable or disable the real time clock in order to conserve battery life The clock will be disabled during manufacturing and must be enabled at system commissioning In addition when preparing for prolonged shutdown the clock should once again be disabled 50 Setpoints Comms Printer Diagnostics 12 24 hr Units Imperial 00521VIPC Set Date Allows the user to specify the present date 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 attempt Set Time Allows the user to specify the present time When prompted to enter a time value the user must enter the hour and minute desired using leading zeroes as necessary If the chiller is presently set to 24 hour mode the time must be en
105. number of compressors for the Unit x where x is the number of the unit Poll Indicator LED Is on when the last noted communication through the Com3 port was to poll a chiller condenser control panel Reply Indicator LED Is on when the last noted communication through the Com3 port was to receive a reply from a chiller condenser control panel Poll Count A count of each poll request through the Com3 port to a chiller condenser control panel Reply Count A count of each reply successfully received through the Com3 port from a chiller condenser control panel Bad Csum Count A count of each reply received through the Com3 port from a chiller condenser control panel that had a bad Csum calculation This indicates that improper data was received YORK INTERNATIONAL Timeout Count A count of each poll request through the Com3 port to a chiller condenser control panel that did not get a reply within the timeout period time to wait for a reply PROGRAMMABLE Clear Counters Resets all the counts to zero YORK INTERNATIONAL FORM 50 40 OM2 NAVIGATION Home Causes an instant return to the Home Screen Diagnostics Causes a return to the previous screen 57 DISPLAY MESSAGES A title bar will be displayed on all screens This title bar will contain the OptiView Remote Control Center date and time on all RCC screens This title bar will contain the Chiller Condensing unit s date and time on all un
106. occurs during the Boot up process explained below this device is used primarily as read only in this application A write protect switch is located on the left edge of the card as shown in Fig 32 It must be placed in the Write Enabled position in order to allow successful Boot up The card 15 located in socket location U46 Ref Fig 31 It connects to the Board via an Elastomeric connector that is a silicon rubber strip embedded with silver conductors The Card can be removed from its socket by using the thumb to press down on the socket s plastic tension spring The card is installed by inserting it into the socket holder and pressing on the surface of the Card until it snaps into place The Memory card is a replaceable component Refer to the YORK Renewal Parts List The version of the Memory card 15 an alphanumeric code that represents the application and revision level The version is printed on a label adhered to the memory card s surface The version code is as follows C RCC 01 XX Revision level Increments 00 01 etc Product Code for OptiView RCC Remote Control Center Commercial The Micro monitors and controls the chiller by reading and executing the Program instructions in a sequence determined by the Program Under Program control the Micro communicates with the chillers via RS 485 serial communications to determine the operating conditions As operating conditions require status messages are retrieved and
107. oint or dismiss an entry form the X key is provided as a universal Cancel symbol Cursor Arrow keys are pro vided to allow movement on screens which contain a large amount of entry data In addi tion these keys can be used to scroll through history and event logs YORK INTERNATIONAL FORM 50 40 2 SCREEN DESCRIPTIONS AND USAGE OVERVIEW The new graphical display on each control panel allows a wide variety of information to be presented to the user Each screen description in this document will begin with a section entitled Overview which will describe the graphical elements on the screen and give a short summary of the functions available Each element on the screen will then be categorized into three distinct groups Display Only Programmable and Navigation Below is a short description of what types of information are included in these groups DISPLAY ONLY Values in this group are read only parameters of information about chiller operation This type of information may be represented by a numerical value a text string or an LED image For numerical values if the monitored parameter is above the normal operating range the high limit value will be displayed along with the gt symbol if it is below the normal operating range the low limit value will be displayed along with the lt lt symbol In some cases the value may be rendered invalid by other conditions and the display will use X s to
108. ompatible supporting components The Display has 307 200 pixels arranged in a 640 columns X 480 rows matrix configuration Each pixel consists of 3 windows red green and blue through which a variable amount of light from the Display Backlight is permitted to pass through the front of the display Imbedded in each window of the pixel is a transistor the conduction of which determines the amount of light that will pass through the window The conduction of each transistor is controlled by a signal from the Display Controller on the Microboard The overall pixel color is a result of the gradient of red green and blue light allowed to pass YORK INTERNATIONAL Under Program control the Display Controller on the Microboard sends a drive signal for each pixel to create the image on the display Each pixel s drive signal 1s an 18 bit binary word 6 bits for each of the 3 colors red green and blue The greater the binary value the greater the amount of light permitted to pass The columns of pixels are driven from left to right and the rows are driven top to bottom To coordinate the drive signals and assure the columns are driven from left to right and the rows are driven from top to bottom each drive signal contains a horizontal and vertical sync signal The Display Interface Board receives these display drive signals from the Microboard J5 and applies them to the Display at connector CN1 Refer to Fig 43 Although there are variations in
109. ons link between the chiller control panel and the OptiView Remote Control Center has been lost This loss of communications is normally a result of disconnecting the RS 485 communications cable between the two panels or the loss of power to the chiller control panel If communications 1s lost and not re established local chiller setpoints will command chiller control after 5 minutes In addition to the chiller status messages there are the Optiview Remote Control Center general status messages that are displayed on a single line on the Home Screen for each chiller See the description of the Home Screen in this manual SAFETY SHUTDOWN MESSAGE WATCHDOG SOFTWARE REBOOT The Microboard s software Watchdog initiated a Microprocessor reset because it detected that a portion of the chiller operating Program was not being executed The result of this reset is a Safety shutdown and re initialization of the Program This is generally indicative of a severe electrical power disturbance or impending Microboard Failure The chiller can be started after the COMPRESSOR switch 15 placed in the Stop Reset O position YORK INTERNATIONAL FORM 50 40 OM2 SECTION 4 PRINTERS 23887A OKIDATA MICROLINE 184 23889A WEIGH TRONIX song He d 4 X 2 lt lt s ysl lt gt ee V v 2 zi Au Y vA VAS 7 ET p tue Nez p ace See Au E Mc
110. ontroller controls the Backlight brightness via the Lamp Dimmer circuit In order to extend the life of the backlight lamp the lamp brightness is driven to 50 brightness after 10 minutes of Keypad inactivity At this brightness level the Display can still be read Subsequently when Keypad activity 15 detected 1 a Keypad key is pressed the lamp is driven back to full brightness 100 brightness Some display manufacturers require a variable voltage to vary the brightness others require a variable resistance Program Jumpers JP7 and JP8 allow either method to be used The Lamp Dimmer is an integrated circuit that is the electrical equivalent of a 10K ohm potentiometer with 100 positions or steps ref Fig 34 The Display Controller controls the position of the potentiometer The Lamp Dimmer varies the brightness of the Backlight by applying either a variable voltage 0 5 0VDC or a variable resistance 0 10K ohms to the Backlight Inverter Board If Program Jumpers JP7 and 1 8 are installed the Lamp Dimmer output is a variable voltage if both are removed the output is a variable resistance The Lamp Dimmer outputs Brightness Control Wiper J6 7 and Brightness Control J6 8 to the Backlight Inverter Board If configured for variable voltage output the voltage between J6 7 and J6 8 can be varied from 0 100 brightness to 5 0 0 brightness If configured for variable resistance the resistance between 16 7 a
111. perating parameters are displayed on various color graphic screens The various display screens are selected for display using the Keypad keys The Display provided in the OptiView RCC or from YORK as a service replacement part could be manufac tured by any of several approved manufacturers Each Display requires a specific Display Interface Board Backlight Inverter Board Inverter Board interface cable and Program command set Therefore Service replace ment Displays or supporting components cannot be arbitrarily selected As explained below replacement Displays are provided from YORK as kits to assure compatibility of all components Non compatibility of components will result in incorrect operation Refer to Display Interface Board and Backlight Inverter Board descriptions that follow The following displays could be provided from YORK in new OptiView RCCs or as replacement parts e LG SEMICON LP104V2 SHARP LQ10D367 The YORK part numbers of the Display Interface Board Backlight Inverter Board and Inverter ribbon cable provided are listed on a label attached to the Display mounting plate These are the part numbers of the supporting components that are compatible with the installed display These supporting components can be individually replaced However if the Liquid Crystal Display fails Display replacement kit 33 1 02053 000 must be ordered as detailed below This kit contains a replacement Display and all c
112. perature Saturated Suction Temp Suction Superheat Saturated Discharge Temp Discharge Superheat Slide Valve Step Cooler Inlet Refrig Temp Liquid Line Solenoid Economizer Solenoid Condenser Fan Stage Compressor Heater FIG 28 OPERATING DATA PRINTOUT EXAMPLE YCAS CHILLER YORK INTERNATIONAL 63 York International Corporation Unit X Status X Comp Screw 2 04PM 18 JUN 01 System 1 No Cooling Load System 2 Compressor Running System 3 No Cooling Load System 4 Compressor Running Options Liquid Line Solenoid Economizer Solenoid Condenser Fan Stage Compressor Heater System 2 Data System Run System Run Time Motor Current FLA Suction Pressure Discharge Pressure Oil Pressure Suction Temperature Discharge Temperature Oil Temperature Saturated Suction Temp Suction Superheat Saturated Discharge Temp Discharge Superheat Slide Valve Step FIG 28 CONTINUED 64 On 15 Min 87 57 2 Psig 233 1 Psig 218 0 Psig 42 9 F 145 5 F 102 6 F 312278 11 2 F 142 1 F 33 4 F 70 The history printout is similar to the operational data printout shown previously The differences are in the header and the schedule information The daily schedule is not printed for a history print One example history buffer header printout is shown following The data part of the printout will be exactly the same as the operating data printout York International Corporation Unit X Safety Shutdown
113. performed This white display screen also lists the BIOS EPROM Version The steps of the Boot up process are as follows Also below is listed the LED activity associated with each step YORK INTERNATIONAL FORM 50 40 OM2 BOOT UP STEP AND DESCRIPTION 1 First initiate table complete Registers in the Micro are configured to allow it to perform basic memory read write functions 2 FPGA configuration The Field Programmable Gate Array FPGA is configured to process Digital Inputs and Outputs 3 Mini card signature test A location in the Flash Memory Card that contains a code identifying the Manufacturer is compared to other locations that contain the manufacturer s name If these values are the same it is pass If they are different it is fail 4 Mini card checksum The Flash Memory Card checksum is calculated and compared to the checksum value that is stored in the Card at the time the Card was initially programmed at the YORK factory If both values are the same it is considered pass If the calculated value is different than the stored value it 1s considered fail 5 BRAM quick test Test data is written to and then read from several memory locations to verify BRAM operation LED INDICATORS When power is applied to the Control Center both the red and green LED s simultaneously illuminate for 1 second then the Boot up process begins in the following sequence Note While one LED flashes the other is off
114. provides a view of communication for troubleshooting Communication between the OptiView RCC and the chiller condenser control panel s should consist of the RCC polling requesting a response from each chiller condenser control panel starting with Unit 1 and continuing to Unit x where x 15 the Number of Units Connected as entered on the RCC Setpoints Screen Each poll will increment the Poll Count A reply should be sent back to the RCC from the Unit that was polled within a certain amount of time If this reply does not happen within this time period the Timeout Count will be incremented If the reply is returned but contains improper data then the Bad Csum Count will be incremented If the reply is successfully received by the RCC then the Reply Count is incremented Good communication 15 indicated by the Poll Count and the Reply Count keeping close to the same count A high Timeout Count could imply that the chiller condenser control panel did not properly receive the request or it did not properly send a response Check the wiring and the Installation Checklist A high Bad Csum Count could be indicative of noise being transmitted This can happen because of improper wiring or grounding 56 To 20 Feb 2001 10 06 AM Tm Diagnostics 3513 6462 4055 00526VIPC DISPLAY ONLY Unit Type Displays the chiller type whether it is a Screw or Scroll and the
115. r units then they must be identified from ID 0 NOTE Atthe chiller condenser unit s control panel select the type of control mode Select REMOTE only if remote control is desired Select LOCAL to only monitor this unit From the Comms Screen of the OptiView RCC enter the RCC Poll Time This is how often time in seconds to request data This time should be set long enough to allow for receiving the data WIRING A communications cable must connect the chiller to the remote panel This cable should be a three conductor with foil shield and drain wire 20 awg or larger sized wire 300v 80 Deg C U L Style 2464 U L listed and CSA approved Three sources are Alpha 5463 Belden 9364 or Quabbin 0220 The cable length sum of lengths of all cables must not exceed 4000 ft 1219 m Never run the communication cable in close proximity to any power wiring For best results it should be run in dedicated grounded conduit See Proper Installation Practices YORK INTERNATIONAL FORM 50 40 2 REQUIRED SOFTWARE VERSION OF THE CHILLER CONDENSING UNIT EPROMS TABLE 1 REQUIRED SOFTWARE VERSION OF THE CHILLER CONDENSING UNIT EPROMS UNIT TYPE EPROM PART NO VERSION YCAL YCUL w microboard 031 01314 000 031 02011 001 C MMC 01 05 YCAL YCUL w microboard 031 02050 000 031 02049 001 C MMC 03 02 YCAS F 2 Compressors 031 01798 001 C ACS 09 03 YCAS F 3 amp 4 Compressors 031 01798 002 C ACS 10 02 YCA
116. r up Loss of Comms will be displayed after 5 minutes have elapsed with no response from a previously initialized unit If any of these messages is displayed the unit s button will be disabled not allowing it to be selected The Control Center Microboard J12 communicates with this board via a 0 5VDC serial data communica tions link If this communications link does not operate properly correct Microboard J12 serial port operation can be verified using the Serial Inputs and Outputs diagnostic procedure in the Service section of this book Installation SECTION 2 INSTALLATION MOUNTING Mount the Remote Control Center at a level that provides for easy viewing of the color graphic display by all users Securely mount it at the desired location The panel may be mounted away from the chiller as far as 4000 ft 1219 m of wiring will allow INSTALLATION CHECKLIST Reference Fig 2 for wiring communications cable must connect the View RCC to the chiller condenser control panel This cable should be a three conductor with foil shield and drain wire 20 awg or larger wire 300v 80 Deg C UL Style 2464 UL listed and CSA approved Three sources are Alpha 5463 Belden 9364 or Quabbin 0220 The cable length sum of lengths of all cables must not exceed 4000 ft 1219 m The cable is user supplied e Obtain ferrite part number 025 35154 000 from the cloth bag found in the OptiView RCC and install it
117. rammable read only memory is a memory device that contains the bootstrap or power up program It is located in socket location U45 This EPROM is replaceable Refer to the YORK Renewal Parts List The EPROM version is an alphanumeric code that represents the application and revision level The version 15 printed on a label adhered to the EPROM s surface The version code is as follows C MLM 00 XX Revision level Increments 01 02 etc OptiView BIOS EPROM MILLENNIUM Commercial When power 15 applied to the Control Center following a power failure the Micro executes the instructions in the BIOS EPROM program to initialize configure and start operation of certain Microboard components before the main program stored in the Flash Memory Card is started Depending upon the application the Microboard could be equipped with an EPROM that has either 128K 256K or 512K capacity Microboard Program Jumper JP38 must be positioned according to the actual EPROM installed Refer to Table 2 Program Jumpers There are 5 steps to the boot up process During the boot up process there 15 a visual indication as each step is performed followed by a Pass Fail status of the step On the Microboard a green LED flashes to indicate the step was successful If a step is unsuccessful a red LED flashes and the Boot up process terminates The execution and Pass Fail status of steps 3 through 5 are displayed on a white Keypad Display Screen as they are
118. re than one Displays how many compressors are running on the unit System Run Time Displays the individual refrigerant systems logged run time since the last compressor start in days Days hours Hr minutes Min or seconds Sec Lead System This message indicates which system 15 In the lead Evaporator Pump Contact LED Is ON when the evaporator pump signal from the microprocessor is on If this is ON the chilled liquid will be animated to show that it is flowing Evaporator Heater LED Is ON when the evaporator heater signal from the microprocessor is on Leaving Chilled Liquid Temperature Displays the temperature of the liquid as it leaves the evaporator YORK INTERNATIONAL Return Chilled Liquid Temperature Displays the temperature of the liquid as it enters the evaporator Discharge Air Temperature Displays the discharge air temperature leaving the evaporator when the condensing unit is programmed for Discharge Air control Systems Suction Pressure Displays the suction pressure for each individual system on a condensing unit when the unit was programmed for Suction Pressure control Ambient Temperature Displays the outdoor Ambient Air Temperature PROGRAMMABLE Print Initiates a printout of current system operating parameters for the currently selected unit Cancel Print Terminates the printing in process This key is only visible while printing is in process NAVIGATION Home Causes
119. require different control voltage inputs To accommodate these variations Microboard Program Jumpers JP3 JP5 JP7 and 1 8 must be configured to provide the required voltage levels A label attached to the Display mounting plate lists the required Program Jumper configuration for that particular display Refer to Table 2 for required Program Jumper configurations for the various Display applications Under Program control the Microboard generates the control signals that are applied to the Backlight Inverter Board The Program determines when the lamp 15 turned on and off It also adjusts the lamp brightness To increase the average lamp life of 25000 hours the lamp brightness is normally adjusted to 50 This brightness level will still allow the display to be visible When the Program senses a Keypad key has been pressed it adjusts the brightness to 100 maximum The lamp illumination high voltage AC 15 generated from either 12VDC or 5VDC as required by the manufacturer Microboard Program Jumper JP5 must be positioned to provide the required voltage The Microboard provides the Backlight Enable signal This signal turns the lamp on and off Some manufacturers require this signal to be 12 VDC others require 5 VDC YORK INTERNATIONAL Program Jumper JP4 must be positioned to provide the required voltage Further some applications require this signal to be a VDC 12VDC or 5VDC to turn on the lamp Others require this signal
120. rinter receive buffer is full This causes the OptiView Remote Control Center to momentarily terminate data transmission until the printer can accept more data The busy signal polarity must be asserted low when busy PRINTER CONNECTIONS Connect the printers to the Control Center Microboard as follows Only one printer can be connected at a time OKIDATA 182 182 turbo 184 turbo Microboard Printer Function J2 4 Tx data to printer J2 2 DSR busy signal from printer J2 9 Gnd Cabinet shield WEIGH TRONIX Microboard Printer Function J2 4 Tx data to printer J2 2 DSR busy signal from printer J2 9 Gnd Cabinet 2355 shield YORK INTERNATIONAL FORM 50 40 OM2 SEIKO 2 5 Buffer threshold 32 bytes Microboard Printer Function pedi ems J2 4 Tx data to printer 2 7 on DTR space after power on 2 8 not used If equipped with HIGH SPEED serial board off Low when busy 2 off 1200 Baud 3 off 1200 Baud 4 on 1200 Baud 5 not used J2 2 DSR busy signal from printer 12 9 Gnd Cabinet BEEN shield 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 equiva lent Shell DB C2 J9 or equivalent Weigh Tronix Same as Okidata Cable assembly available from Weigh Tronix Seiko 9 Pin D type Subminiature DB 9 pin
121. ro a reset state until the 5VDC has returned to a sufficient level The Watchdog circuit also assures that all the Program instructions are being performed and that the Program has not latched up bypassing important safety thresholds If the Program has latched up the Micro displays WATCHDOG SOFTWARE REBOOT message The Program Jumpers Table 2 and Program Switches Table 3 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 applications Refer to Table 2 and 3 for the function of each jumper and switch The position of some can be determined and set by the Service Technician to meet the desired operation The position of others 1s dictated by the size type or style of certain Control Center components and thus the position is determined by the YORK Factory The required position of each is listed in these tables The Program Jumpers are wire bridges that are either left in place or cut The Program Switches are miniature switches that are placed in either the ON or OFF position YORK INTERNATIONAL The DRAM dynamic random access memory 15 a non battery backed memory device The Micro stores data here temporarily for further processing Data in this device is lost during power failures DRAM differs from RAM in that DRAM must be periodically refreshed in circuit The BIOS EPROM basic input output system erasable prog
122. ro reads the entire Keypad by repeating this routine beginning with row 1 and ending with row 4 The entire Keypad is read every Program cycle The Micro selects the MUX inputs Microboard J7 J8 J9 for input to the A D Converter by writing sequential addresses to the FPGA The FPGA holds each address until a new one is received from the Micro As each address is applied to the MUX the input corresponding to that address is passed through the MUX to the A D Converter The A D Converter will convert the analog value to a digital word when the Micro writes a start conversion pulse to the FPGA The FPGA passes this to the A D Converter The Micro allows access to the PC 104 port Microboard J16 J17 by writing an enable pulse to the FPGA The FPGA applies this to the data transceiver allowing data to be output to or input from the PC 104 Port To provide flexibility for future Analog Inputs to Microboard J7 2 analog inputs can be configured for either 0 10VDC or 4 20mA Transducer or Thermistor inputs using Program Jumpers JP21 and JP22 The position of the jumper determines which type of input can be connected Refer to Fig 36 and Table 2 Program Jumpers 70 These inputs are for future YORK Factory expansion use only They are not general application spare inputs that will support arbitrarily installed devices Devices CANNOT be connected to these inputs until the program has been modified to read and process the inp
123. row a logic high 24VDC on the remaining rows and reads the columns A logic low in any column indicates a key in that column and row 18 pressed For example if at the time row 4 is being driven low if column 3 is low then the Micro YORK INTERNATIONAL concludes the key at coordinate of row 4 and column 3 is pressed Since the coordinates of all keys are stored in the Microboard s Program it can identify which key is at this coordinate and responds accordingly In this example the 1 key is pressed In order for the Microboard to reliably detect closed and open keys each key must meet a closed circuit and open circuit resistance requirement When a key is pressed the contact resistance must be lt 100 Ohms When a key is not pressed the contact resistance must be gt 1 Meg Ohm If the Microboard is not responding to a pressed key or if it s detecting a closed key when none are pressed it could be because the contact resistance requirements are not being met The operation of each key can be checked with an Ohmmeter To check the open and closed contact resistance of any key refer to the Diagnostics and Troubleshooting description in this book The Keypad is attached to the front of the Remote Control Center door with an adhesive backing If service replacement is required start at one corner and slowly peel the Keypad from the door The rear side of the replacement Keypad is coated with an adhesive covered with
124. rs Lane South Basildon Essex SS14 3HE United Kingdom Telephone 44 1268 246000 Fax 44 1268 246001 FIG 1 EU DECLARATION OF CONFORMITY YORK INTERNATIONAL US Contact Electronics Engineering Manager P O Box 1592 231C York PA 17405 1592 United States Telephone 717 771 6457 Fax 717 771 7498 Product Description SECTION 1 PRODUCT DESCRIPTION The YORK OptiView Remote Control Center 15 microprocessor based control system capable of remotely monitoring certain chillers and condensing units It can monitor and individually control to 8 of these chiller condensing units The panel comes configured with a full screen color LCD Graphic Display mounted in the middle of a keypad interface The graphic display allows the presentation of the current information all at once In addition the operator may view a graphical representa tion of several operating parameters For the novice user the locations of various parameters are clearly and intuitively marked Instructions for specific operations are provided on many of the screens The graphic display also allows information to be represented in Imperial units temperatures in F and pressures in PSIG or PSID or SI units temperatures in C and pressures in BARG or BARD All values that are modifiable at the Remote Control Center are recorded in memory and preserved even through a power failure condition During operation the chillers are continually polled an
125. s of the most commonly monitored parameters are listed on this screen The parameters are arranged to make it easier to find the slot number of the desired parameter to plot 41 42 This page intentionally left blank YORK INTERNATIONAL FORM 50 40 OM2 This page intentionally left blank YORK INTERNATIONAL 43 Operation SETPOINTS SCREEN EXAMPLES DATE TIME Unit 4 6 Comp Scroll 15Jun 2000 En SETPOINTS SCREEN Remote Ron 44 0 Run onto Range 20 F 7 Leaving Limit Setpoint Daly Schedule Stant Stop dine Holiday Unit Data Remote Chiller Run Monday iuesday Wednesday saturday sunday Holiday 12 00 AM 12 00 AM 12 00 AM 12 00 AM 12 00 AM 12 00 AM 12 00 AM 12 00 AM 12 00 12 00 12 00 AM 12 00 AM 12 00 AM 12 00 12 00 AM 12 00 AM Ho Ho Ho Ho Ho Ho Ho _Load Limit Setpoint _ Leaving FIG 17A YCAL CHILLER DATE TIME Unit 1 2 Comp Screw 15 Jun 2000 1 38 PM SETPOINTS SCREEN Remote Ron SPiIpomnt 42 0 F Hun onto Range 1 5 F Limit setpoint 100 x Leaving nile Start Time 12 00 12 00 12 00 12 00 12 00 12 00 12 00 12 00 Daly Schedule Stop dine
126. splay drive signals and sends them to the Display from Microboard J5 The Display has 307 200 pixels arranged in a 640 columns x 480 rows matrix configuration Each pixel consists of 3 windows red green and blue through which a variable amount of light from the Display backlight is permitted to pass through the front of the display Imbedded in each window of the pixel is a transistor the conduction of which determines the amount of light that will pass The drive signal determines the amount of conduction of the transistor and therefore the amount of light passed through the window The overall pixel color becomes a result of the gradient of red green and blue light allowed to pass The drive signal for each pixel is an 18 bit binary word 6 for each of the 3 colors red green and blue The greater the binary value the greater the amount of light 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 sequentially from left to right and the columns are driven from top to bottom each drive signal contains a horizontal and vertical sync signal YORK INTERNATIONAL FORM 50 40 OM2 The Display DRAM is a memory device that supports the operation of the display controller This device could be either of two types FPM fast page mode or EDO extended data out type Program Jumper JP6 must be positioned according to th
127. splay is present It can then provide the correct timing and control signals to produce the graphic Image as required by the Display manufacturer Since the Display Interface Board identifies the Display for the Microboard there is a different Display Interface Board required for each Display application and each has a unique jumper configuration that identifies the Display complete explanation of this process is included in the preceding Microboard description and the Display Interface Board description that follows The DC power source to operate the Display is provided by the Microboard J5 Some Display manufacturers require 5VDC others require 3 3VDC The position of Microboard Program Jumper JP2 determines which of these power sources 15 supplied to the Display JP2 must be positioned according to the Display manufacturers requirements Refer to Table 2 Program Jumpers The Backlight Lamp provides the illumination for the display Average lamp life 15 25000 hours 2 9 years Some displays use one lamp Others use two lamps Lamps are replaceable but not interchangeable between different displays Each Display manufacturer specifies the required lamp for their display Refer to replacement parts list for appropriate replacement lamp Service replacement lamps are stocked in the YORK Service Parts 82 Distribution Center The lamp is illuminated by applying a high voltage AC 500 to 1500VAC to it This illumina
128. stopped Trending is also stopped if a power failure occurs while it is running After trending is stopped the last screen of data that was collected will be displayed on the trending screen and the START key must be pressed to initiate a new trend screen DISPLAY ONLY This screen allows the user to view the graphical trending of the selected parameters and 15 also a gateway to the graph setup screens YORK INTERNATIONAL A red screen with the words TREND MAX MUST BE gt TREND MIN will appear if the Y Axis minimum has been programmed to a value that is greater than the Y Axis maximum for any parameter If this appears proceed to the Trend Setup Screen to change the values PROGRAMMABLE Start Pressing this key clears the graph starts a new graph and begins the trending The trending will continue until the STOP key is pressed the Home screen 15 displayed or a power failure occurs This key is only available if trending is stopped Stop Pressing this key stops the trending The trend data is frozen on the display until another graph is started with the START key The Stop key is only available if trending is running Y Axis This key toggles the Y Axis labels of the graph Each key press changes the label to another of the selected parameters YORK INTERNATIONAL FORM 50 40 OM2 X Axis This key toggles the X Axis labels of the graph Each key press alternates the scaling between time of day and elapsed t
129. t sample interval YORK INTERNATIONAL Select This key 1s used to enter the slot numbers and the minimum and maximum Y Axis values of each param eter to be trended Pressing this key places a yellow box around Data Point 1 Slot Number Use the A and Y navigation keys to place the box around the value of Data Points through 6 to be changed With the desired value selected press the Enter key A dialog box is displayed permitting data entry Data Point Slot 1 6 Use the SELECT key as described above and enter the slot number from the Trend Common Slots Screen of the desired parameter to be trended The selected parameter description will be displayed for the Data Point Setting this slot number to zero will disable trending for that particular Data Point Any or all points can be disabled Data Point Min 1 6 Only displayed if the Associated Slot Number is not Zero This is the minimum value displayed for the Y Axis Selecting a parameter for a Data Point sets this to the default value which 15 the lowest value allowed for that parameter It can be changed to a value that provides a more appropriate resolution for the parameter being monitored To change use the SELECT key as described above and enter the desired value The value must always be set to a value less than the Data Point Max Otherwise a red graph 15 displayed on the Trend Screen with the words TREND MAX MUST BE gt TREND MIN If the parameter sel
130. tal chips to land in the electronics and create a short circuit If you must drill the panel take the following precautions 1 Call the panel manufacturer if possible before drilling the panel to be sure you are entering the panel at the right place 2 Cover the electronics with plastic Tape the plastic to the board with masking or electrical tape 3 Place masking tape or duct tape on the inside of the panel at the point of drill bit entry 4 Remove all of the remaining chips from the panel before removing the protective plastic When routing conduit to the top of an electronic control panel condensation must be taken into consideration Water can condense in the conduit and run into the panel causing catastrophic failure Route the conduit to the sides or bottom of the panel and use a conduit drain If the conduit must be routed to the top of the panel use a sealable conduit fitting which is poured with a sealer after the wires have been pulled terminated and the control functions have been checked A conduit entering the top of the enclosure must have an ring type fitting between the conduit and the enclosure so that if water gets on top of the enclosure it cannot run in between the conduit and the enclosure This is extremely important In outdoor applications Never add relays starters timers transformers etc inside an electronic control panel without first contacting the manufacturer Contact arcing and E
131. tered in the 24 hour format Otherwise the user must also select AM or PM for the entered time If out of range the user is prompted for the information again At this point the user may retry the time entry or cancel the programming attempt 12 24 Hr Allows the user to specify the format in which the time will be presented to the user This setpoint will only affect the display of the time on the OptiView RCC panel and on all reports generated 12 Hour time format will include the AM and PM modifiers 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 YORK INTERNATIONAL Units Define the unit system Imperial or SI used by the OptiView RCC display This selection has no effect on the chiller condensing unit micro panel NAVIGATION Home Causes an instant return to the Home Screen Setpoints Causes a return to the Setpoints Screen YORK INTERNATIONAL FORM 50 40 OM2 Comms Moves to the sub screen allowing configuration of system communications Printer Moves to the sub screen allowing configuration and control of printer functions Diagnostics Moves to the sub screen allowing limited diagnostic capability while operating 51 COMMS SCREEN COMMS SCREEN FIG 22 OVERVIEW This screen is accessed from the RCC Setup Screen This screen allows definition of the necessary com munications parameters Refer to PRINTER Sect
132. th more than one unit simplify the troubleshooting by isolating the communication to one unit at a time Remove any wiring to a secondary unit and from the Setpoints Screen of the OptiView RCC enter one as the Number of Units Connected and at the chiller condenser control panel set it s ID to zero Step 2 Check if there is any communication problem occurring on the Diagnostic RCC Comms Screen See the description of this screen You could also check that the RX3 I O communication activity LED on the OptiView Main Processor Board is blinking as it receives data from the chiller condensing unit s control panel A steady lit RX3 LED is a sign of improper wiring If the RX3 LED 15 not blinking check the wiring and the installation of the Lan Transient Protection Module If everything 1s properly connected replace the 485 driver on the chiller condenser microboard part number 031 02074 000 SAFETY It is recommended that all maintenance and service repair work be performed by experienced personnel There must be recognition of the potential hazards that can exist Those hazards may include but are not limited to YORK INTERNATIONAL There can be electrical circuitry that presents an electrocution hazard Be sure that the sources of all power supplies have been properly isolated and secured before attempting any service related activities DANGER External wiring unless specified as an optional connection in the manu facturer
133. the motor starter to the motor in its own conduit The 120 volt circuit must be run from the motor starter control transformer to the control panel in its own separate conduit If the two circuits are run in the same conduit transients on the 480 volt circuit will be inducted into the 120 volt circuit causing functional problems with the electronic control Dividers must be used in wire way systems conduit trays to separate unlike voltages The same rule applies for 120 volt wires and 220 volt wires Also never run low voltage wires in the same conduit with 120 volt wires Never run any wires through an electronic control panel that do not relate to the function of the panel Electronic control panels should never be used as a junction box These wires may be carrying large transients that will interfere with the operation of the control When running conduit to an electronic control panel note that the access holes knockouts are strategically placed so that the field wiring does not interfere with the electronics in the panel Never allow field wiring to come in close proximity with the controller boards since this will almost always cause problems YORK INTERNATIONAL 480 VOLT L SE BUS araar GROUND BUS d LZ q LL 27 SEPARATE CONDUIT ELECTRONIC CONTROL LD06738 FIG 5 SEPARATE CONDUIT INSTALLATION Do not drill a control panel to locate conduit con nections Drilling can cause me
134. tion voltage 15 created from a low level DC voltage 12VDC or 5VDC as required by the Display manufacturer by the Backlight Inverter Board Lamp brightness is controlled by varying the high voltage AC The greater the voltage the brighter the illumination The lamp is controlled by on off commands and brightness control signals applied to the Backlight Inverter Board from the Microboard The Microboard Program determines when the lamp is turned on and off and the lamp brightness Each Display manufacturer specifies the Backlight Inverter Board to be used Therefore it will vary according to the Display manufacturer The ribbon cable that connects the Microboard to the Backlight Inverter Board also varies according to the Display manufacturer s requirements Refer to Fig 44 Microboard Program Jumpers JP3 4 5 7 and 8 determine the voltage levels of the control signals sent to the Backlight Inverter Board and must be configured per the Display manufacturer s requirements as listed in Table 2 A detailed description of the operation of this board is in the Backlight Inverter Board description that follows Also refer to the preceding Microboard description for a detailed description of the Lamp Dimmer circuit The actual Display that is installed in the OptiView Control Center of the new chiller is determined by the Display manufacturer contractual agreement in place during the time of OptiView Control Center production Displays s
135. tocked for Service replacement are a result of that same agreement Therefore the Display received for service replacement may be by a different manufacturer than the one in the OptiView Control Center Since each Display manufacturer requires a specific Display Interface Board Backlight Inverter Board and Inverter Ribbon Cable replacement Displays are ordered and supplied as a Display Replacement Kit YORK Part Number 331 02053 000 to assure component compat ibility The items supplied in the kit are compatible with the supplied Display The kit consists of the following items mounted on a Display mounting plate Display Replacement Kit 331 02053 000 1 Liquid Crystal Display with Lamp 2 Appropriate Display Interface Board for item 1 3 Appropriate Backlight Inverter Board for item 1 4 Appropriate ribbon cable Backlight Inverter Board to Microboard for item 1 5 Ribbon cable Display Interface Board to Microboard 6 All mounting hardware 7 Installation instructions A label attached to the YORK INTERNATIONAL Display mounting plate lists the YORK part numbers of the Display supporting components mounted on the Display mounting plate and the required Microboard Program Jumper JP2 through 8 configurations Microboard Program Jumpers JP2 JP8 will have to be configured appropriately for the replacement display Refer to Table 2 Program Jumpers Display Handling 1 The display is made of glass It could break i
136. ut Unless YORK documentation shows a device connected to the input with a defined function the input cannot be used The Microboard receives 2 supply voltages Microboard from the Power Supply 12VDC 5VDC and Ground The 12VDC and 5V DC are input to Voltage Regulators to derive other regulated voltages The 5VDC is input to a 3 3VDC regulator The output is 3 3VDC regulated voltage The 12VDC is input to a 5VDC regulator The output of this regulator powers only the Analog circuits This includes the MUX A D converter and Thermistors As depicted on Fig 33 these voltages can be monitored at Test Posts through TP6 The Microboard is equipped with 5 Serial Data Ports ref Fig 35 Connector J2 is shared with both COM and COM 4B Each Port is dedicated for a specific function as follows a COM 1 J2 RS 232 Printer b COM 2 J13 RS 232 Not Used c COM 3 712 RS 485 Chiller panel communica tions d COM 4 4A J11 4B J2 This port is actually two ports However they cannot be used simultaneously only one of these ports can be connected to a device at a time The position of Microboard Program Jumper J27 determines which port can be used refer to Table 2 COM 4A 111 is an RS 485 port that is used for Multi Unit Communications COM 4B J2 is an RS 232 port that is used for MicroGateway e COM 5 J15 Not Used YORK INTERNATIONAL COM 1 Is connected directly to the Micro
137. ves analog and serial data inputs and controls serial data outputs per instructions in the operating program A panel mounted display and touch sensitive keypad permit remote operation In some applications overall system temperatures are sensed by thermistors connected to the Remote Control Center The output of each thermistor is a DC voltage that 15 analogous to the temperature it 1s sensing Typical output voltage range of both is 0 5 to 4 5VDC These are analog inputs to the Remote Control Center Serial Data is transmitted to and received from devices in RS 232 RS 485 and TX RX opto couple form All OptiView Remote Control Centers contain the following standard components e Microboard e Keypad Display Power Supply 66 Figure 33 1s a Remote Control Center block diagram of the standard components The microprocessor and all supporting logic circuits along with the memory devices containing the operating program reside on the Microboard All remote control decisions are made here In some applications it receives analog inputs from devices The analog inputs are connected directly to the Microboard A front panel mounted Keypad allows Operator and Service Technician user interface Membrane keys are used to display chiller and system parameters enter setpoints and perform chiller and Remote Control Center diagnostics A front panel mounted liquid crystal Display allows graphic animated display of the connect
138. wn Print All Histories This generates a report listing the status of the chiller parameters at the time of each of the stored shutdowns Cancel Print Terminates the printing in process This key 15 only visible while printing 15 in process NAVIGATION Home Causes an instant return to the Home Screen Unit Data Causes an instant return to the Unit Screen View Details Causes a move to a sub screen containing the value of select chiller parameters at the time of the associated shutdown 47 HISTORY DETAILS SCREEN 20 Feb 2001 10 22 AM Home HISTO RY DETAILS SCREEN York International Corporation Unit 1 Safety Shutdown Humber 1 2 Comp Screw 2 53 PM 06 Feb 2001 System 1 Ho Fault Unit Data History System 2 High Differential 011 Pressure Options Chilled Liquid Type Ambient Control Hode Refrigerant Program Values Current Limit Setpoint Local Remote Control Mode Unit Data FIG 19 OVERVIEW This screen allows the user to see an on screen printout of all the system parameters at the time of the selected shutdown Not all screens are shown above The number of screens required to display all of the data varies according to the type of unit selected DISPLAY ONLY History Printout This is the on screen printout of the system param eters PROGRAMMABLE Page Up Scroll up in the displayed data if applicable Page Down Scroll down in the displayed data if applicable
139. ype Using the PRINTER Screen the actual Printer type connected to the OptiView Remote Control Center must be entered Selection determines the control codes that are sent to the Printer These codes determine such things as lines per inch character width and general formatting Available selections are Okidata Weigh Tronix and Seiko Automatic Data Logging If automatic data logging is desired a Status Report can be automatically printed at a specified interval beginning at a specified time using the PRINTER Screen The interval is programmable over the range of minute to 1440 minutes in 1 minute increments first print will occur at the programmed START time and occur at the programmed OUTPUT INTERVAL thereafter The time remaining until the next print 15 displayed on the PRINTER Screen Automatic Printer Logging Enables and disables automatic data logging Log Start Time Enter the time the first print 1s desired Log Unit Selected Select a unit or all units to print logs of Output Interval Enter the desired interval between prints Print Pressing the Print button from the Unit Screen allows the operator to obtain a printout of current system operating parameters for the currently selected unit A sample operating data printout for a YCAS chiller is shown following YORK INTERNATIONAL York International Corporation Unit X Status X Comp Screw 2 04PM 18 JUN 01 System 1 No Cooling Load S
140. ype of unit Values on this screen are only pro grammable if the chiller condensing unit is in remote control mode These values are only viewable if the unit ts in local mode DISPLAY ONLY None PROGRAMMABLE Leaving Chilled Liquid Temperature or Return Chilled Liquid Temperature or Suction Pressure or Discharge Air Temperature Setpoint This value allows the user to define the cooling setpoint that is to be maintained by the chiller condensing unit See the unit s Installation Operation and Maintenance Manual IOM for it s programmable range Leaving Chilled Liquid Temperature or Return Chilled Liquid Temperature or Suction Pressure or Discharge Air Temperature Control Range This is the maximum allowable positive and negative deviation that is acceptable from setpoint in the system application See the unit s Installation Operation and Maintenance Manual for it s programmable range Remote Chiller Run or Remote Unit Run The chiller condensing unit can be selected to either Run or Stop Selecting Stop will command the chiller condensing unit to shut down Selecting Run will allow the chiller condensing unit to turn on Current Limit Setpoint This is the motor current limiting setpoint The chiller will be limited from loading when the motor current equals or exceeds this value Typically for most instal lations no limiting is required and the programmed limiting will be set at or above 100 46
141. ystem 2 Compressor Running System 3 No Cooling Load System 4 Compressor Running Options Chilled Liquid Type Water Ambient Control Mode Standard Refrigerant Type R 22 Program Values Current Limit Setpoint 100 Local Remote Control Mode Remote Unit Data Leaving Chilled Liquid Temperature Return Chilled Liquid Temperature Leaving Chilled Liquid Setpoint Control Range Ambient Temerature Lead System Evaporator Pump Contact Evaporator Heater Software Version System 1 Data System Run System Run Time Motor Current FLA Suction Pressure Discharge Pressure Oil Pressure Suction Temperature Discharge Temperature Oil Temperature Saturated Suction Temp Suction Superheat Saturated Discharge Temp Discharge Superheat Slide Valve Step Cooler Inlet Refrig Temp FORM 50 40 OM2 Liquid Line Solenoid Economizer Solenoid Condenser Fan Stage Compressor Heater system 2 Data system Run System Run Time Motor Current FLA Suction Pressure Discharge Pressure Oil Pressure Suction Temperature Discharge Temperature Oil Temperature Saturated Suction Temp Suction Superheat Saturated Discharge Temp Discharge Superheat Slide Valve Step Cooler Inlet Refrig Temp Liquid Line Solenoid Economizer Solenoid Condenser Fan Stage Compressor Heater System 3 Data System Run System Run Time Motor Current FLA Suction Pressure Discharge Pressure Oil Pressure Suction Temperature Discharge Temperature Oil Tem

York 00497VIP User's Manual

Contents

Download Pdf Manuals

Related Search

Related Contents