Carrier 69NT20-531-300 manual Module which allow communication with a master

Page 19

2.1.6 Control Box Section

 

 

 

 

 

2.1.7 Communications Interface Module

 

 

The control box (Figure 2-5) includes the manual

The communications interface module is a slave

operation switches; circuit breaker (CB-1); compressor,

module which allow communication with a master

fan and heater contactors; control power transformer;

central monitoring station. The module will respond to

fuses; key pad; display module; current sensor module;

communication and return information over the main

controller module expansion module and the

power line. Refer to the master system technical manual

communications interface module.

 

 

 

 

 

for further information.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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1.

Compressor Phase A Contactor

 

 

11.

Manual Defrost Switch

 

 

 

 

2.

Compressor Phase B Contactor

 

 

12.

Condenser Fan Switch

 

 

 

 

3.

Heater Contactor

 

 

 

 

13.

Controller Battery Pack

 

 

 

 

4.

Display Module

 

 

 

 

14.

Interrogator Connector (Box Location)

 

 

5.

Communications Interface Module

 

 

15.

Control Transformer

 

 

 

 

6.

Controller/DataCORDER Module (Controller)

 

16.

Evaporator Fan Contactor - High

 

 

 

7.

Expansion Module

 

 

 

 

17.

Evaporator Fan Contactor - Low

 

 

 

8.

Key Pad

 

 

 

 

 

18.

Condenser Fan Contactor

 

 

 

 

9.

Start-Stop Switch

 

 

 

 

19.

Circuit Breaker -- 460V

 

 

 

 

10.

Remote Monitoring Receptacle

 

 

20.

Current Sensor Module

 

 

 

 

Figure 2-5 Control Box Section

2-5

T-309

Page 18 Page 20
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Page 18 Page 20
Contents Service Model Safety Summary 309 Safety-2 Safety-3 309 Table of Contents Table of Contents Check Controller Function Codes Connect Remote MonitoringPrecheck Procedure Checking The Stepper valve Valve ReplacementEvaporator Coil Replacement Evaporator Heater Replacement Replacing The Evaporator Fan AssemblyElectrical Wiring Schematic Refrigeration Circuit Schematic Economized Operation Refrigeration Circuit Schematic Standard OperationList of Tables DataCORDER Configuration VariablesUnit is fitted with a scroll compressor Section IntroductionManual, T-300 Section Description Evaporator Section Compressor Section Condenser Section Communications interface module For further information Module which allow communication with a masterOil level range, with the compressor off Model RSH105 Weight Dry 46.5 kg 103 lbTemperature Approved Oil Mobil ST32 Oil Charge 2957 ml 100 ouncesElectrical Data Safety and Protective Devices Refrigeration Circuit 2.5.1 Standard Operation Standard Operation with Receiver Refrigeration Circuit Schematic -- Economized Operation Section Microprocessor Temperature Control SystemKEY Function Controller Software Modes of Operation Perishable Mode -- Economy Controller Alarms Unit PRE-TRIP Diagnostics DCF02=6 Thermistor inputssupply & returnDCF02=2 DCF02=5 Usda thermistor inputsRaw Data Report for ABC1234567 Standard Configuration Download ReportLogging Interval dCF03 DataCORDER may be powered up in any one of four waysDataView DataCORDER Alarms SnAP CnF11 Defrost Off Selection NoOFFStd, Full CnF33 Snap Freeze OptionDisplay Only Functions Plicable with frozen set points Defrost temperature sensor reading is displayedPossibly delaying a needed defrost cycle Sensor ReadingController Function Codes Sheet 3 Controller Alarm Indications Sheet 1 Controller Alarm Indications Sheet 2 Controller Alarm Indications Sheet 3 Memory failure Error DescriptionOnds Draw test is done after 15 secondsP1-1 Draw test is done after 10 secondsCrease, the test fails Supply is comparedTest fails P6-2Requirements Control temperature must be at least 15.6C 60F Pressure switch is open or the condenser fan switch is openTimer is started Denser fan is started and a 60 second timer is startedSet point, the test proceeds to test Requirements Control temperature must be at least 7.2C 45FBy starting P10-0 over Inapplicable Functions Display Title Data 10 DataCORDER Alarm Indications 69NT Fresh AIR Makeup OperationTo start a pre-trip test, do the following Will be displayedWill be displayed Pull Down Falling Rising Controller Operation -- Perishable ModeController Operation -- Frozen Mode Frozen Mode Defrost Section Troubleshooting Unit will not heat or has insuffi Bent motor shaft Will not initiate defrostSuperheat Unit reads abnormal currents Current sensor wiring Check Valve Frontseated Backseated Section ServiceCompressor in a deep vacuum, internal dam- age will result Refrigerant Leak Checking Remove all refrigerant using a refrigerant recovery system Refrigerant Charge Compressor Upper Mounting Compressor OIL Level Condenser FAN and Motor Assembly Wrapped with Insulating compound. See Two expansion valves are used, the evaporatorRemoving the Expansion Valve Check superheat refer to step Cleaned regularly. The preferred cleaning fluid is freshIf applicable, braze the equalizer connection to Equalizer line14. Unloader Solenoid Valve Start unit and check operationEvaporator FAN Motor Capacitors Valve Override Controls Precheck Procedure TP1 Mounting Stud Type Cut one replacement sensor wire opposite color Cut wires 5 cm 2 inches from shoulder of defecCut one wire of existing cable 40 mm 1-1/2 inch Shorter than the other wireMaintenance of Painted Surfaces 23 Door Hinge Repair Crack, Chip & Hole Repair Kit 24. Insert Location In-lbs Ft-lbs 13.99 18.86 In-lbs #10 Ft-lbs 12.72 17.1414.6 49.4 37.08 12.3 41.6 31.25 32.8 24.64 22.7 17.00 11.9 Section Electrical Wiring Schematic Schematic Diagram Wiring Diagram Sheet 1 Wiring Diagram Sheet 2 Index 309 Index-2
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