Accel AV316 Technical Information

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

10CHILLER RUN STATU S (mA)REMOTE LOCKOUTFIRE SECURITY INTERLOCKREMOTE CONTACTREMOTE STOPALARM RELAYALERT RELAYa19-2245(+)(G)(-)(+)(G)(-)19XV05005503 B

100APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table LEGEND *Object names are built from CCN table name and CCN point name

101APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND *Object names are built from CCN table name and CCN poin

102APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND *Object names are built from CCN table name and CCN poi

103APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND *Object names are built from CCN table name and CCN po

104APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND *Object names are built from CCN table name and CCN po

105APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND *Object names are built from CCN table name and CCN po

106APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND *Object names are built from CCN table name and CCN poi

107APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND *Object names are built from CCN table name and CCN po

108APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND *Object names are built from CCN table name and CCN poi

109APPENDIX D — BACnet OPTION (cont)Table C — BACnet Point Table (cont) LEGEND*Object names are built from CCN table name and CCN poin

11DEMAND LIMIT INPUT (mA)A0143a19-2246(+)(G)(-)(+)(G)(-)2J15-22J15-8REFRIGERANT LEAKDETECTORFig. 7 — IOB 2

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.Cata

12REMOTE RESET SENSOR56AUTO WATER TEMP RESETHEAD PRESSURE OUTPUT (mA)SPA RE SAFETYa19-2247(+)(G)(-)(+)(G)(-)Fig. 8 — IOB 3

13EVAP FLOW SWITCHCOND FLOW SWITCHCHILLED WATER PUMPCONDENSER WATER PUMPTOWER FAN HIGHTOWER FAN LOWa19-2248(+)(G)(-)(+)(G)(-)Fig. 9 — IOB 4

14PER JOB SPECIFICATIONa19-2249UVFig. 10 — Control WiringFig. 11 — HMI Panela19-22517TB IN HMI PANELFOR CUSTOMERCOMMUNICATIONCONNECTIONA (+)C (G)B (-)

15a19-2252Fig. 12 — Auxiliary Control Panel, IOB Layer1TB2TB1TB — CUSTOMER 3-PHASE POWER CONNECTION FOR AUX CONTROL PANEL2TB — FIELD WIRIN

16SensorsPRESSURE TRANSDUCERS — Pressure transducers mea-sure and control the pressures in the unit. These electronic sen-sors deliver 0 to 5 VDC. The

17General Interface FeaturesICONS — Table 8 shows general interface icons.Table 8 — Interface IconsSCREENS — The Human Machine Interface includes the

18Messages — The Set Point screen, On/Off screen, User Loginscreen, and Main Menu screens described in the next sectionsmay display status messages at

19Main Menu Screen — To access the Main Menu screen, pressthe Main Menu icon . Press the icons on the screen to accessthe appropriate table or menu.

2rigging, and setting this equipment, and in handling all electri-cal components. GENERALThis publication contains operation and troubleshooting i

20Schedule Menu Screen — To access the Schedule menuscreen, press on the Configuration menu screen. Press thearrows at the bottom right corner to

21PIC 5 CONTROL OPERATIONStart-Stop Control — This function controls the chillerSTART-STOP command. There are four selectable controlmodes: LOCAL, LOC

22Table 11 — Pre-Start Alerts and Alarms*Evap trip point = 33 F (0.6 C) (water) or EVAP REFRIG TRIPPOINT(brine).The compressor RUN STATUS parameter on

23Table 12 — Set Point DeterminationNOTES:1. The ice build option is disabled when heat/cool mode is set toHeating.2. When the ice build option is ena

24SURGE CORRECTION CONTROL — There are two stag-es for surge correction: envelope control (surge prevention)and surge protection.Envelope Control — A

25ECONOMIZER DAMPER VALVE CONTROL — Theeconomizer damper valve control maintains the difference be-tween evaporator pressure and economizer pressur

26Other types of override events do not override control guidevane or VFD operation, but are reported:• High compressor discharge temperature override

27water temperature is greater than the condenser freeze point. Ifthe chiller is in recycle shutdown mode when the condition oc-curs, the controls wil

28Once a year the pressure transducers should be checkedagainst a pressure gage. Attach a set of accurate refrigerationgages to the tranducer being ch

29The alarm task runs periodically. At each alarm task runtime, the status change of each alarm is checked and one emailmessage is sent to each specif

3Table 1 — ISM Input/Output Descriptions12345PIC 5 BOTTOM VIEW1 - POWER SUPPLY CONNECTOR2 - LEN CONNECTOR3 - CCN CONNECTOR4 - ETHERNET CONNECTOR5 - US

30Oil Filter Alert — This function is active only in an oil pumpcontrol test. If the oil pump is forced to ON and after 10 sec-onds, if the pressure d

31A manual reset must be run from the main menu via theALARMRST menu, item RST_ALM. Once the alarm has been corrected or reset, all informationregardi

32Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSETEMPERATURE SENSOR FAUL

33Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPRESSURE TRANSDUCER FAU

34Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPRESTART FAILURES (CONT

35Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPRESTART FAILURES (CONT

36Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPROTECTIVE LIMITS (CONT

37Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPROTECTIVE LIMITS (CONT

38Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPROTECTIVE LIMITS (CONT

39Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPROTECTIVE LIMITS (CONT

4--1TBFig. 2 — Medium Voltage Across-the-Line ISM (Typical)a19-2136NOTE: This diagram is for reference only. See actual wiringdiagram for details.

40Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPROTECTIVE LIMITS (CONT

41Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEINTEGRATED STARTER MODU

42Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEINTEGRATED STARTER MODU

43Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEINTEGRATED STARTER MODU

44Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEINTEGRATED STARTER MODU

45Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEINTEGRATED STARTER MODU

46Table 15 — PIC 5 Alarm Codes (cont) ALARM CODE(ALARMRST)ALARM TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEINTEGRATED STARTER MODU

47Table 16 — PIC 5 Alert CodesALERT CODE(ALARMRST)ALERT TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPRESTART ALERTSAlt-100ALT-100 P

48Table 16 — PIC 5 Alert Codes (cont)ALERT CODE(ALARMRST)ALERT TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSESENSOR ALERTS (CONT)Alt-

49Table 16 — PIC 5 Alert Codes (cont)ALERT CODE(ALARMRST)ALERT TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSESENSOR ALERTS (CONT)Alt-

5--1TBFig. 3 — Medium Voltage Autotransformer ISM (Typical)a19-2137NOTE: This diagram is for reference only. See actual wiringdiagram for details.

50Table 16 — PIC 5 Alert Codes (cont)ALERT CODE(ALARMRST)ALERT TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEPROCESS ALERTS (CONT)Alt

51Table 16 — PIC 5 Alert Codes (cont)ALERT CODE(ALARMRST)ALERT TEXT DESCRIPTIONRESET TYPEACTION TAKEN BY CONTROLPOSSIBLE CAUSEMASTER/SLAVE ALERTSAlt-1

52Event States — An event state is a specific set of conditi-osn that the controller may encounter when controlling thechiller. Event states are repea

53Enter the new address and validate it by pressing OK. Re-turn to the Network screen and enter the subnet mask and de-fault gateway using the same me

54Press Buzzer to display or modify buzzer settings. SeeFig. 57.Press System Settings to return to the System Settingsscreen.On the System Settings sc

55COMMUNICATION PROBLEMSHardware Problems — See Table 18 for potential com-munication issues caused by hardware problems.Web Interface Problems — See

56Ethernet/IP Connection Problems — Trouble-shoot these with the following methods:UNIT IS POINT-TO-POINT CONNECTED TO A PC —The cable can be eithe

57If a configuration script is used, it is not possible to add theunit IP address to the exceptions list. In this case, see the sec-tion Java Applicat

58APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTUREHOMEMAIN MENU LOG IN/LOG OUT CONFIRM STOP CHOOSE OPERATING MODE ALARM MENUa19-2238Main MenuGeneral Para

59APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)HOMEMAIN MENU LOG IN/LOG OUT CONFIRM STOP CHOOSE OPERATING MODE ALARM MENUa19-2240Main MenuMain

6--1TBFig. 4 — Medium Voltage Primary Reactor ISM (Typical)a19-2138NOTE: This diagram is for reference only. See actual wiringdiagram for details.

60APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Main Menu Description * Displayed text depends on the selected language (default is English).ICO

61APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)GENERAL PARAMETERS LEGEND*Default value is shown only if configurable in this table.†0

62APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Temperatures Pressures (Associated Table: PRESSURE) LEGEND *Default value is shown onl

63APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Input Status LEGEND *Default value is shown only if configurable in this table.CCN TABLE

64APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Output Status Hydraulic Status LEGEND *Default value is shown only if configurable in th

65APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Run TimesNOTE: The displayed runtime is updated every hour. To avoid theloss of data in case of

66APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Setpoint TableQuick Test LEGEND *Default value is shown only if configurable in this tab

67APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Configuration MenuNavigation: MAIN MENU  CONFIGURATION MENUICON DISPLAYED TEXT ACCESS ASSOCIAT

68APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Service Parameters Surge Correction Config LEGEND *Default value is shown only if conf

69APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Protective Limit Config Option Configuration LEGEND *Default value is shown only if con

7AUX CONTROL PANELNOTE: SHIELDED CABLE IS RECOMMENDED FORTHE FIELD CONNECTION BETWEEN 2TB AND TB5.STARTER PANELa19-2250Fig. 5 — Starter Field Wiring

70APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) ISM Configuration LEGEND *Default value is shown only if configurable in this table.CCN

71APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Factory Parameters General Configuration LEGEND *Default value is shown only if configu

72APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) VFD Parameters SRD Configuration LEGEND *Default value is shown only if configurable in this

73APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) IOB Configuration E-Mail Configuration LEGEND *Default value is shown only if configura

74APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Master Slave Configuration Prognostics Config LEGEND*Default value is shown only if co

75APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Reset Configuration User Configuration LEGEND *Default value is shown only if configura

76APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Schedule MenuNavigation: MAIN MENU  CONFIGURATION MENU  SCHEDULE MENU Local Schedule NOTE: Th

77APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Network Schedule*Default value is shown only if configurable in this table.†Period 8 only.NOTE:

78APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Holiday MenuNavigation: MAIN MENU  CONFIGURATION MENU  HOLIDAY MENU The Holiday Menu has 16 s

79APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Bacnet Config LEGEND*Default value is shown only if configurable in this table.NOTES:

8IOB (Input/Output Board) — The IOB is suppliedfrom a 24 VAC supply reference to earth ground. The compo-nents listed in Tables 2-5 are available at

80APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Maintenance MenuNavigation: MAIN MENU  MAINTENANCE MENUICON DISPLAYED TEXT ACCESS ASSOCIATED TA

81APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Capacity Control LEGEND *Default value is shown only if configurable in this table.CCN T

82APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Override Control LEGEND *Default value is shown only if configurable in this table.CC

83APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Surge Correction Maintenance ISM Config LEGEND *Default value is shown only if confi

84APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Swift Restart Master Slave LEGEND *Default value is shown only if configurable in this ta

85APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Power Parameters LEGEND *Default value is shown only if configurable in this table.CCN TA

86APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)ISM Status ISM History LEGEND *Default value is shown only if configurable in this tabl

87APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Maintenance SRD Maintenance Others LEGEND *Default value is shown only if configurable

88APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont) Maintenance IOBBoard Software PN LEGEND *Default value is shown only if configurable in

89APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Pumpdown/Lockout (Screen 1)Navigation: MAIN MENU  MAINTENANCE MENU  PUMPDOWN/LOCKOUT The

9Table 4 — IOB3 Connections at User’s Terminal BlockNOTES:1. See Fig. 8 for IOB3 wiring diagram.2. For pressure readings, only Vout (output) terminal

90APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Pressure Sensor Calib (PRES_CAL) Menu DescriptionNavigation: MAIN MENU  MAINTENANCE MENU  PRES

91APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Evap Pressure Sensor Cond Pressure SensorEco Pressure Sensor Diff Pressure Sensor LEGEND

92APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Oil Sump Pressure Oil Supply Pressure Evap Entering Water P Evap Leaving Water P LEGEND

93APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Cond Entering Water P Cond Leaving Water P LEGEND *Default value is shown only if configur

94APPENDIX A — PIC 5 SCREEN AND TABLE STRUCTURE (cont)Alarms Menu Description Alarm Reset LEGEND *Default value is shown only if configurable

95APPENDIX B — INPUT/OUTPUT BOARD (IOB) AND HUMAN MACHINE INTERFACE (HMI)DIP SWITCH SETTINGSIOB Dip Switch Settings (Fig. E)IOB SW1 SETTING (1 TO 4) S

96APPENDIX B — INPUT/OUTPUT BOARD (IOB) AND HUMAN MACHINE INTERFACE (HMI)DIP SWITCH SETTINGS (cont)HMI Dip Switch Settings — To access switches,remove

97APPENDIX C — INPUT/OUTPUT BOARD (IOB) STATUS INDICATORSAll control boards have LED indicators that show controlboard and communication status.A red

98APPENDIX D — BACnet OPTIONGeneral — The 19XR PIC 5 controller supports the BAC-net protocol as B-ASC BACnet equipment over IP. In addition,BACnet o

99APPENDIX D — BACnet OPTION (cont)TESTING THE INSTALLATION — To verify that the don-gle connection is correctly inserted and detected by the equip-me