Carrier 48LC Series Controls, Start-up, Operation And Troubleshooting

Also see for 48LC 05: Controls, Start-Up, Operation and Troubleshooting Service and maintenance instructions Service and maintenance instructions

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Carrier 48LC Series Controls, Start-up, Operation And Troubleshooting Manual pdf 5 page image

5Table 2 – Navigator Mode and Menu Display StructureRUNSTATUSSERVICETEST TEMPERATURES PRESSURES SET-POINTS INPUTS OUTPUTS CONFIGURATION TIMECLOCK OPERATINGMODES ALARMSAuto View ofRun Status(VIEW)Service TestMode(TEST)TempDemandConfig(T.DMD)ThermostatInputs(STAT)GeneralOutputs(GEN)General UnitConfig(GEN)DaylightSavingsConfig(DST)Demand LimitStatus(DMD.S)Curr ActiveAlarm(CURR)CoolingStatus(COOL)Test IndependentOutputs(INDP)DemandLimit Config(DMD.C)SwitchInputs(SW)CoolingOutputs(COOL)DI Config(DIS)SchedulesAdjust(SCHD)History(HIST)HeatingStatus(HEAT)Test Fans(FANS)AnalogInputs(AIS)HeatingOutputs(HEAT)Analog InputConfig(AIS)HolidayAdjustment(HLDY)Reset AllCurrentAlarms(R.CUR)VentilationStatus(VENT)Test Cooling(COOL)GeneralInputs(GEN)Cooling Configs(COOL)Alarm ResetHistory(R.HIS)Indoor FanStatus(I.FAN)Test Heating(HEAT)Network(NET)Outdoor FansConfig(ODF)GeneralStatus(GEN)HardwareInputs(HW)Heating Config(HEAT)OccupancyData(OCC)UserMeasuredData(DATA)Indoor FanConfig(I.FAN)Run Hours& Cycles(RUN)EconomizerConfig(ECON)Assigned I/OChannels(A.IO)Air QualityConfig(AIR.Q)Versions(VERS)Alarm RelayConfig.(ALM.O)Calibration(CAL)Building NetConfig(NET)User DisplayConfig(DISP)Pressing the ESC and ENTER keys simultaneously will display anexpanded text description across the display indicating the fullmeaning of each display point. Pressing the ESCAPE and ENTERkeys when the display is blank (MODE LED level) will return thedisplay to its default menu of rotating AUTO VIEW display items.In addition, the password will need to be entered again beforechanges can be made.Changing item values or testing outputs is accomplished in thesame manner. Locate and display the desired item. If the display isin rotating auto-view, press the ENTER key to stop the display atthe desired item. Press the ENTER key again so that the item valueflashes. Use the arrow keys to change the value of state of an itemand press the ENTER key to accept it. Press the ESCAPE key andthe item, value or units display will resume. Repeat the process asrequired for other items.There are some points that can be forced from the Navigatordisplay. If the user needs to force a variable, follow the sameprocess as when editing a configuration parameter. A forcedvariable, regardless where the force has come from will bedisplayed with a blinking “f” on a Navigator display following itsvalue. For example, if economizer commanded position (EC.CP) isforced, the Navigatort display shows “80f”, where the “f” isblinking to signify a force on the point. Remove the force byselecting the point that is forced with the key ENTER and thenpressing the up and down arrow keys simultaneously.Depending on the type of unit (48LC or 50LC), factory-installedoptions and field-installed accessories, some of the items in thevarious Mode categories may not apply.See Table 2 and Appendix C for full Navigator display menulayout.System Pilott and Touch Pilott DevicesThe System Pilot device (33PILOT-01) and Touch Pilot device(33CNTPILOT) can be used as CCN communicationuser--interfaces. These devices can be put on the CCN bus andaddressed to communicate with any other device on the network.Unlike the SystemVut display and Navigator display, these pilotsread the unit’s CCN tables and its CCN points can be monitored,forced, or configured. The Pilot devices can be used to install andcommission a 3Vt zoning system, linkage compatible air source,universal controller, and all other devices operating on the Carriercommunicating network.Additionally, the System Pilot device can serve as a wall-mountedtemperature sensor for space temperature measurement. Occupantscan use the System Pilot device to change set points. See Fig. 4 forSystem Pilot device details.CCN Tables and DisplayIn addition to the unit--mounted SystemVut display, the user canalso access the same information through the CCN tables by usingthe service tool or other CCN programs/devices. The variablenames used for the CCN tables and the SystemVu display menusmay be different and more items may be displayed in the CCNtables. Details on the CCN tables are included in Appendix D.