Truck/Trailer Refrigeration Unit - Sunbelt Transport Refrigeration

Standard Units SelectThe standard units select will control how allparameters are displayed. The two choices are DEGREESF and DEGREES C. This parameter also controls unitsthat data is displayed in psig or bars (i.e. Degrees F orDegrees C). The code display is FN4. The selections are“F” or “C.”Maximum Off TimeThe description for the maximum off time is TEMPSTRT or TIME STRT. The code display is FN5 and theselections are “ON” or “OFF.” “ON” corresponds toTIME STRT. With the unit in time start, the control willforce the engine to restart 30 minutes after shutoff.MOP By-Pass ValveThedescriptionforBy-PassValvesetupisMOP.Thecode display is FN6. Once By-Pass Valve is de-energizedit will be held off for a minimum of 2 minutes.FN6settingTable1-4.By-PassValveSetup(PSIG)TRUCKTRAILEREnergized(Open)De-Energized(Close)Energized(Open)De-Energized(Close)STD 17 25 20 29MOP --- 15 27 18 27MOP+ 19 29 21.5 30.5Auto/Manual Start OperationThe selection for startingthe unit is displayed AUTOOP (code FN7 ON) for auto start operation or MAN OP(code FN7 OFF) for manual start operation.To start the unit in manual start mode, theSTART/STOP CONTINUOUS selection must be in“Continuous Run” mode.Out-of-Range ToleranceThe out-of-range temperature tolerance selection isdisplayed with the description T RANGE or code FN8.The selection are A, B and C. A=2_C(3.6_F),B=3_C(5.4_F) and C=4_C (7.2_F).The controller indicates out-of-range when thetemperature has been within the tolerance band at leastonce, and then goes outside the tolerance band for 15minutes.For set points at or below ---12.2_C (+10_F) frozenrange the unit is only considered out-of-range fortemperatures above set point.1.8.7 UNIT DATAThe unit data key canbeusedtodisplaytheunitoperating data values. The data values are displayed forfive seconds, then the display will revert back to thedefault display if no further action is taken. The followingsections describe the list of data which can be displayedvia the keypad. The description of the data is displayedon the left side with the actual data on the right side. Theunit data list can be scrolled through by pressing the unitdata key. With each successive key push, the list isadvanced one item. If the unit data, up or down arrow keyis held for one second, the list will change at a rate of oneitem every 0.5 seconds. This list is circular, meaning oncethe end of the list is reached the list will go to the firstentry. Each time the unit data key or the up/down arrowkey is pressed, the display time will be reset to fiveseconds. If the enter key is pressed, the display time will beset to 30 seconds. The position in the unit data list willremain at the last selected value except if power isremoved. If the display were to time out and revert to thedefault display, the operator would only have to press theunit data key to display the same data again.Table1-5.UnitDataCodesCODE ENGLISH DATACD1 SUCT Suction PressureCD2 ENG Engine HoursCD3 WT Engine TemperatureCD4 1RA Return Air Temperature C1CD6 2DTCompartment 2 DefrostThermistor SensorCD7 3DTCompartment 3 DefrostThermistor SensorCD8 1DTSCompartment 1 DefrostThermistor SensorCD9 CDT Discharge TemperatureCD10 BATT Battery VoltageCD11 SBY Standby HoursCD12 MOD V Future ExpansionCD13 REV Software RevisionCD14 SERL Serial Number LowCD15 SERU Serial Number UpperCD16 2RACompartment 2Air TemperatureCD17 3RACompartment 3Air TemperatureCD18 MHR1 Maintenance Hour Meter 1CD19 MHR2 Maintenance Hour Meter 2CD20 SON Switch On Hour MeterSuction PressureThe suction pressure is displayed with thedescription SUCT or CD1. The data is displayed with theproper unit designator P (psig) or B (Bars) (i.e. SUCT25P) . The display is in inches of mercury for readingsbelow 0 psig. The display range is ---0.7 Bars to 29.4 Bars(---20 HG to 420 psig).1-19 62-02884