OPERATION AND SERVICE MANUAL Supra 550 650 750 850 & 950

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1.6.4 Electrical Dataa. Evaporator Fan MotorsBearing Lubrication: Factory lubricated, additionalgrease not requiredHorsepower0.13hp (100W)OperatingCurrent10.8 ampsSpeed2800 to3000 rpmVoltage12 vdcb. Standby MotorsBearing Lubrication: Factory lubricated additional grease not requiredRotation Speed: 1760 rpm@ 60Hz/1500 rpm@ 50HzVoltagePowerConnection Type3ph, 60 HzHPFull Load AmpsSUPRA 550230 ∆207.6460 Y 14SUPRA 650/750230 ∆237.6460 Y 13SUPRA 850230 ∆19.68.3460 Y 9.8SUPRA 950230 ∆328.3460 Y 23c. Alternator: 70 ampsd. Standby Motor OverloadMODELSETTING230V, 3 ph, 60 Hz 460V, 3 ph, 60 Hz550 16 AMPS --650/750 20 AMPS 10 AMPS850 21 AMPS 11 AMPS950 35 AMPS 23 AMPS1.6.5 TORQUE VALUESAssembly ft-lb NmPower Tray to Frame 40 54.2Standby Motor to Power Tray 22-28 30-44Engine to Power Tray 50 67.8Compressor to Power Tray 45-55 61-75Standby Motor Pulley 175inlbs19.8Engine Pulley 22 29.8Compressor Pulley 22 29.8Evaporator Fan Motor 13 17.6Evaporator Fan Grille 7 9.5Condenser Coil to Chassis 7 9.5Tensioner to Power Tray 22 29.8Engine Support 40 54.2Run & Speed Solenoids 7 9.5Condenser Fan Blade 18 24.4Engine Clutch 40 54.2Suction Service Valve 22-25 30-341--15 62--10828
1.7 SAFETY DEVICESSystem components are protected from damage caused by unsafe operating conditions by automatically shuttingdown the unit when such conditions occur. This is accomplished by the safety devices listed in Table 1-9.Table 1-9. Safety Devices - Microprocessor ControllerUnsafe Conditions Safety Device Device Setting1. Low engine lubricating oilpressureOil pressure safety switch (OP)automatic reset2. High engine coolant temperature Water temperature sensor(microprocessor)3. Excessive current draw by glowplug circuit, control circuit or startersolenoid (SS)4. Excessive current draw byrun control relay.5. Excessive current draw byrun relayFuse (F1)Fuse (F2)Fuse (F3)Opens below 18 ¦ 3 psig(1.2 ¦ 0.2 Bar)Opens above 230 ¦ 5_F(110 ¦ 3_C)Opens at 80 ampsOpens at 5 ampsOpens at 15 amps6. Excessive current draw heat relay Fuse (F4) Opens at 5 amps7. Excessive current draw by speedrelay7. Excessive current draw by unloader8. Excessive current draw bydefrost damper relay8. Excessive current draw byevaporator fan motors9. Excessive current draw by fuelpump10. Excessive compressordischarge pressure11. Excessive compressordischarge temperature12. Excessive current draw by fuelheater circuit (option)Fuse (F5)Fuse (F6) (850 and 950 Only)Fuse (F7) (950 Only)Fuse (F8, F9, F10)Fuse (F11)High pressure cutout switch (HP) automaticresetCompressor dischargetemperature sensor (CDT)Fuse (F12)Opens at 10 ampsOpens at 5 ampsOpens at 15 ampsOpens at 20 ampsOpens at 5 ampsRefer to Section 1.6.3.a.Shuts unit down above310_F (154_C) for 3 minutesor 350_F (177_C)Opens at 25 amps62--108281--16
Page 2 and 3: OPERATION ANDSERVICE MANUALFORSupra
Page 4 and 5: TABLE OF CONTENTSPARAGRAPH NUMBERPa
Page 6 and 7: TABLE OF CONTENTSPARAGRAPH NUMBERPa
Page 8 and 9: LIST OF ILLUSTRATIONSFIGURE NUMBERP
Page 10 and 11: SAFETY SUMMARYGENERAL SAFETY NOTICE
Page 12 and 13: CAUTIONObserve proper polarity when
Page 14 and 15: SECTION 1DESCRIPTION1.1 INTRODUCTIO
Page 16 and 17: 151. Fuel Filter2. Model/Serial Num
Page 18 and 19: FHRFigure 1-5. Relay/Fuse Board (Wi
Page 20 and 21: 123LB--41. Positive OutputTerminal2
Page 22 and 23: f. Hot Gas Solenoid Valve (Three-Wa
Page 24 and 25: 1.5 SYSTEM OPERATING CONTROLS ANDCO
Page 26 and 27: Table 1-7 Engine Data For Supra 650
Page 30 and 31: 1.8 REFRIGERANT CIRCUIT1.8.1 Coolin
Page 32 and 33: SECTION 2OPERATION2.1 MICROPROCESSO
Page 34 and 35: Road KeyThe ROAD key selects the di
Page 36 and 37: 2.4.7 Start/Stop OperationAfter sta
Page 38 and 39: Out-of-Range ToleranceNOTEIf config
Page 40 and 41: Software RevisionThe English displa
Page 42 and 43: System Check AlarmThe English displ
Page 44 and 45: 3.1.4 Dual Probe OperationThe micro
Page 46 and 47: Suction Pressure Control (950 Only)
Page 48 and 49: 3.2.2 StandbyRefer to SECTION 6 for
Page 50 and 51: CONTINUOUS MODEDIESELSTANDBY2.7°F
Page 52 and 53: CONTINUOUS MODEDIESELSTANDBY2.7°F
Page 54 and 55: SECTION 4SERVICEWARNINGBeware of V-
Page 56 and 57: Service AService BService C1.Check
Page 58 and 59: 4.1.3 Replacing the Speed and Run C
Page 60 and 61: 4.1.6 Servicing Glow PlugsWhen serv
Page 62 and 63: 4.2.4 Standby Motor -Compressor V-B
Page 64 and 65: 78c. With the unit service valves c
Page 66 and 67: f. After monitoring 1 lb. (0.45 kg)
Page 68 and 69: 4.10 COMPRESSOR UNLOADER VALVE (850
Page 70 and 71: 4.14 CHECKING AND REPLACING EVAPORA
Page 72 and 73: 4.19 THERMOSTATIC EXPANSION VALVETh
Page 74 and 75: 4.21.2 To Reach The Configuration F
Page 76 and 77: *CNF16OFFONAlt Aux alarm onlyAlt Au
Page 78 and 79:
Table 4-6. R-404A Temperature -Pres
Page 80 and 81:
INDICATION/TROUBLEPOSSIBLE CAUSES5.
Page 82 and 83:
INDICATION/TROUBLE5.3.5 Defrost Cyc
Page 84 and 85:
INDICATION/TROUBLEPOSSIBLE CAUSESRE
Page 86 and 87:
--Based on Drawing 62 -04094 Rev A1
Page 88 and 89:
EElectric And Water Heat, 1--10Elec
Page 90 and 91:
TThermal Expansion Valve, 1--10, 4-
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OPERATION AND SERVICE MANUAL Supra 550 650 750 850 & 950

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