Carrier 19XRV Start-up, Operation And Maintenance Instructions Manual

Also see for AquaEdge 19XRV series: Start-up and service instructions Installation instructions Start-up, operation and maintenance instructions Start-up and service instructions User manual

Carrier 19XRV Start-up, Operation And Maintenance Instructions Manual Manual pdf 16 page image

ICVC Operation and Menus (Fig. 14-20)GENERAL• The [CVC display automatically reverts to the defaultscreen after 15 minutes if no softkey activity takes placeand if the chiller is not in the pump down mode (Fig. 14).• If a screen other than the default screen is displayed onthe ICVC, the name of that screen is in the top line(Fig. 15).• The ICVC may be set to display either English or SIunits. Use the ICVC configuration screen (accessed fromthe Service menu) to change the units. See the ServiceOperation section, page 48.NOTE: The date format on the default screen is MM-DD-YYfor English units and DD-MM-YY for SI metric units.• Local Operation -- In LOCAL mode the PIC III acceptscommands fiom the ICVC only and uses the local timeoccupancy schedule to determine chiller start and stoptimes. The PIC III can be placed in the local operatingmode by pressing the LOCAL softkey. When RUNSTATUS is READY. the chiller will attempt to start up.• CCN Opelation --In CCN mode the PIC III acceptsinput from any CCN interface or module (with the properauthority) as well as from the local ICVC. The PIC IIIuses the CCN time occupancy schedule to determinestart and stop times. The PIC III can be placed in thelocal operating mode by pressing the CCN softkey.When RUN STATUS is READY. the chiller will attemptto start up.• OFF -- The control is in OFF mode when neither theLOCAL nor CCN softkey cue is highlighted. Pressingthe STOP key or an alarm will place the control in thismode. The PIC III control must be in this mode forcertain operations, such as performing a Control Test oraccessing VFD Configuration parameters.ALARMS AND ALERTS -- An altu'm shuts down the com-pressor An alert does not shut down the compressol: but itnotifies the operator that an unusual condition has occurred. Analarm (*) or alert (!) is indicated on the STATUS screens on thefar right field of the ICVC display screen.Alarms are indicated when the control center _darm light (!)flashes. The primtuy alarm message is displayed on the defaultscreen. An additional, secondary message and troubleshootinginformation are sent to the ALARM HISTORY table.When an alarm is detected, the ICVC default screen willfieeze (stop up&_ting) at the time of alarm. The freeze enablesthe operator to view the chiller conditions at the time of alarm.The STATUS tables will show the updated information. Onceall aimms have been cleared (by pressing the _ soft-key), the default ICVC screen will return to normal operation.An alarm condition must be rectified before a RESET willbe processed. However. an _dert will clear automatically assoon as the associated condition is rectified.ICVC MENU ITEMS -- To perform any of the operationsdescribed below, the PIC III must be powered up and havesuccessfully completed its self test. The self test takes placeautomatically, after power-up.Press the _ softkey to view the list of menu struc-tures: _, [SCHEDULE], LSETPOINT], and[SERVICEI.• The STATUS menu allows viewing and limited calibra-tion or modification of control points and sensors, relaysand contacts, and the options board.PRIMARY STATUSSTATUSMESSAGE(ILLUMINATEDWHEN POWER ON)• BLINKS CONTINUOUSLYON FOR AN ALARM• BLINKS ONCE TOCONFIRM A STOPCOMPRESSOR DATEON TIME• HOLD FOR ONESECOND TO STOPmmmm//SOFT KEYSEACH KEY'S FUNCTION IS MENUDEFINED BY THE MENU DESCRIPTION LINEON MENU LINE ABOVEFig. 14-- ICVC Default ScreenDEVICE NAME SCREEN NAMEmmmFig. 15 -- ICVC Service Screen• The SCHEDULE menu allows viewing and modificationof the local and CCN time schedules and Ice Build timeschedules.• The SETPOINT menu allows set point adjustments, suchas the entering chilled water and leaving chilled water setpoints.• The SERVICE menu can be used to view or modifyinformation on the Alarm History, Control Test, ControlAlgorithm Status, Equipment Configuration, VFD Con-figuration data, Equipment Service, Time and Date,Attach to Network Device, Log Out of Network Device,and ICVC Configuration screens.For more information on the menu structures, refer toFig. 17.Press the softkey that corresponds to the menu structure tobe viewed: _ ISCHEDULEI,[SE OINTI, or[SERVICE]. To view or change parmneters within any of thesemenu structures, use the _ and [PREVIOUS[ softkeysto scroll down to the desired item or table. Use thesoftkey to select that item. The softkey choices that appear nextdepend on the selected table or menu. The softkey choices andtheir functions are described below.BASIC ICVC OPERATIONS (Using the Softkeys) -- To per-form any of the operations described below, the PIC III must bepowered up and have successfully completed its self test.16