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

Also see for HERMETIC CENTRIFUGAL LIQUID CHILLERS 19XR: User manual Start-up and service instructions Installation instructions Product data Installation instructions

Contents

Carrier 19XR Start-up, Operation And Maintenance Instructions Manual Manual pdf 15 page image

• Press QUIT to leave the selected decision or field with-out saving any changes.• Press ENTER to leave the selected decision or field andsave changes.• Press NEXT to scroll the cursor bar down in order tohighlight a point or to view more points below the currentscreen.• Press PREVIOUS to scroll the cursor bar up in order tohighlight a point or to view points above the current screen.• Press SELECT to view the next screen level (high-lighted with the cursor bar), or to override (if allowable)the highlighted point value.• Press EXIT to return to the previous screen level.• Press INCREASE or DECREASE to change the high-lighted point value.TO VIEW STATUS (Fig. 14) — The status table shows theactual value of overall chiller status such as CONTROL MODE,RUN STATUS, AUTO CHILLED WATER, RESET, and RE-MOTE RESET SENSOR.1. On the menu screen, press STATUS to view the list ofpoint status tables.2. Press NEXT or PREVIOUS to highlight the desiredstatus table. The list of tables is:• MAINSTAT — Overall chiller status• STARTUP — Status required to perform startup of chiller• COMPRESS — Status of sensors related to thecompressor• HEAT_EX — Status of sensors related to the heatexchangers• POWER — Status of motor input power• ISM_STAT — Status of motor starter• CVC_PSWD — Service menu password forcing ac-cess screen3. Press SELECT to view the desired point status table.4. On the point status table, press NEXT orPREVIOUS until the desired point is displayed on thescreen.OVERRIDE OPERATIONSTo Override a Value or Status1. From any point status screen, press NEXT orPREVIOUS to highlight the desired value.2. Press SELECT to select the highlighted value. Then:19XR_II MAINSTAT POINT STATUSControl ModeRun StatusStart Inhibit TimerOccupied?System Alert/AlarmChiller Start/StopRemote Start ContactTemperature ResetControl PointChilled Water TempActive Demand LimitAverage Line CurrentOFFReady0.0 MinNONORMALSTOPOpen0.0 F44.0 F44.6 F100%0.0%Fig. 14 — Example of Status Screen15