Carrier AquaForce B Series Controls, Start-up, Operation, Service And Troubleshooting Instructions

Also see for AquaForce 30XV140: Controls, start-up, operation, service and troubleshooting instructions

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Carrier AquaForce B Series Controls, Start-up, Operation, Service And Troubleshooting Instructions Manual pdf 47 page image

47ALARM EQUIPMENT PRIORITYThe ComfortVIEW software uses the equipment priority valuewhen sorting alarms by level. The purpose of the equipmentpriority value is to determine the order in which to sort alarmsthat have the same level. A priority of 0 is the highest andwould appear first when sorted. A priority of 7 would appearlast when sorted. For example, if two chillers send out identicalalarms, the chiller with the higher priority would be listed first.The default is 4. This variable can only be changed when usingthe ComfortVIEW software, or Network Service Tool. Thisvariable cannot be changed with the Carrier Controller display.To configure this option with the Network Service Tool, navi-gate to point EQP_TYP in table ALARMDEF.COMMUNICATION FAILURE RETRY TIMEThis variable specifies the amount of time that will be allowedto elapse between alarm retries. Retries occur when an alarm isnot acknowledged by a network alarm acknowledger, whichmay use either ComfortVIEW software or TeLink. If acknowl-edgment is not received, the alarm will be re-transmitted afterthe number of minutes specified in this decision. This variablecan only be changed when using the ComfortVIEW software,or Network Service Tool. This variable cannot be changed withthe Carrier Controller display. To configure this option with theNetwork Service Tool, navigate to point RETRY_TM in tableALARMDEF.RE-ALARM TIMEThis variable specifies the amount of time that will be allowedto elapse between re-alarms. A re-alarm occurs when the con-ditions that caused the initial alarm continue to persist for thenumber of minutes specified in this decision. Re-alarming willcontinue to occur at the specified interval until the conditioncausing the alarm is corrected. This variable can only bechanged when using the ComfortVIEW software, or NetworkService Tool. This variable cannot be changed with the CarrierController display. To configure this option with the NetworkService Tool, navigate to point RE_ALARM in tableALARMDEF.ALARM SYSTEM NAMEThis variable specifies the system element name that will ap-pear in the alarms generated by the unit control. The name canbe up to 8 alphanumeric characters in length. This variable canonly be changed when using the ComfortVIEW™ software orNetwork Service Tool. This variable cannot be changed withthe Carrier Controller display. To configure this option with theNetwork Service Tool, navigate to point ALRM_NAM in ta-ble ALARMDEF.Daylight Savings Time ConfigurationThe 30XV chiller with Greenspeed® Intelligence control con-tains software which can automatically correct for daylight sav-ings time. This software is accessible from the Carrier Controllerdisplay, ComfortVIEW software, or Network Service Tool.To enable this feature, Daylight Savings Select must be set to1. The start of daylight saving must be configured by settingthe Month, Day of Week, and Week of Month. The end forDaylight Saving must also be configured. To configure this op-tion with the Carrier Controller display, see Table 30.Table 30 — Daylight Savings Time ConfigurationCapacity Control OverridesThe following capacity control overrides (Main MenuMaintenance Menu Capacity Control Override Capaci-ty Nb A, B) will modify the normal operation routine. If any ofthe override conditions listed below is satisfied, the overridewill determine the capacity change instead of the normal con-trol. Overrides are listed by priority order and are often linkedto unit operating modes. See Table 31 for a list of capacity con-trol overrides. See the Operating Modes section on page 56 formore information regarding operating modes.Table 31 — Capacity Control OverridesOverride #2: Low Suction PressureThis override is activated when the Expansion Valve (EXV) isnot in DSH (discharge superheat) mode and the Saturated Suc-tion Temperature (SST) goes below 13.25°F (–10.4°C) for wa-ter or below (13.25°F – (34°F – Brine Freeze Setpoint)) forunits configured with brine. The controller at this point starts tounload the unit until the SST exceeds 34°F (1.1°C).Override #6: EWT < Control PointThis override stops the compressors without alarms.Override #7: Ramp LoadingNo capacity increase will be made if the unit is configured forramp loading and the rate of change of the leaving water isgreater than Ramp Loading Rate.DISPLAY NAME PATH VALUEActivateMain MenuConfiguration MenuBroadcast MenuBrocasts1 or 2Default = 2DaylightSavings SelectEnableDefault = DisableEnteringMonth Enter Starting Month forDaylight SavingDay of Week(1=Monday)Enter the Day of the WeekDaylight Saving StartsWeek of Month Enter Week of the MonthDaylight Saving StartsLeavingMonth Enter Ending Month forDaylight SavingDay of Week(1=Monday)Enter the Day of the WeekDaylight Saving endsWeek of Month Enter Week of the MonthDaylight Saving endsNO. DESCRIPTION0 Normal Operation2 Low Suction Pressure6 EWT < control point7 Ramp Loading9 Demand Limit Reached10 Flow switch is open11 Customer Interlock is closed12 Flow Available Delay14 Low LWT15 Compressor Disabled16 High Discharge Pressure23 Low SP25 Oil Recovery34 Low SST53 ON-OFF-ON Delay56 Evaporator Heater Isolation Valve Opening Delay59 Low Oil Level62 High Compressor Motor Temperature66 High Discharge Gas Temperature67 DGT Off Protection70 Low Refrigerant Protection71 Low Refrigerant Protection77 Oil Pressure at Start78 Bad VFD Spd At Start91 Demand Limit