Holding Zone, Two-Speed Compressor | Carrier 69NT40-521 guide

Table 4-1. Electrical Control Positions -- BELOW --10_C (+14_F), or --5_C (+23_F) optionally

CONTROL CIRCUIT

COOLING

Holding Zone

**Dehumidification

HEATING

DEFROST

Single-Speed Compressor:

Compressor Contactor

(C)

Energized

De-energized

**

**

De-energized

1

Two-Speed Compressor:

	Compressor Contactor	Energized	De-energized	**	**		De-energized
	(CH)	Energized	De-energized	**	**		1
	(CH)						1

	Compressor Contactor	Energized	De-energized	**	**		De-energized
	(CS)	Energized	De-energized	**	**		1
	(CS)						1
	Compressor Contactor	De-energized	De-energized	**	**		De-energized
	(CL)	De-energized	De-energized	**	**		1
	(CL)						1
	Condenser Fan	Energized	De-energized	**	**		De-energized
	Contactor (CF)	Energized	De-energized	**	**		De-energized
	Contactor (CF)
	High Speed Evaporator			Refer to section		Refer to	De-energized
	High Speed Evaporator	De-energized	De-energized	Refer to section		section	De-energized
	Contactor (EF)	De-energized	De-energized	3.1.7.a.2		section	2
	Contactor (EF)			3.1.7.a.2		3.1.7.a.2	2
						3.1.7.a.2

	Low Speed Evaporator			Refer to section		Refer to
	Low Speed Evaporator	Energized	Energized	Refer to section		section	De-energized
	Contactor (ES)	Energized	Energized	3.1.7.a.2		section	De-energized
	Contactor (ES)			3.1.7.a.2		3.1.7.a.2
						3.1.7.a.2

	Defrost Relay (TF)	De-energized	De-energized	**	**		Energized

	Heater Relay (HR)	De-energized	De-energized	**	**		Energized

	INDICATING LIGHTS

	Cool	ON	OFF	**	**		OFF

	Defrost	OFF	OFF	**	**		ON

	In-Range	On -- If In-Range (Refer to paragraph 3.1.4, Code 30)
	In-Range	On -- If In-Range (Refer to paragraph 3.1.4, Code 30)

	Heat	OFF	OFF	**	**		ON
	POWER CIRCUIT

	Compressor	Energized	De-energized	**	**		De-energized

	Condenser Fan Motor	Energized	De-energized	**	**		De-energized

	Heaters	De-energized	De-energized	**	**		Energized

	Evaporator Fan Motors	Energized	Energized	**	**		De-energized

**Dehumidification and heating modes do not operate at set points below -10_C (14_F), or -5_C (23_F) optionally 1 - May be energized in defrost if snap freeze portion of defrost is run.

2 - May be energized in defrost if probe check portion of defrost is run.

T-268-07

4-14

Image 89

Carrier 69NT40-521, 69NT40-511-199 manual Holding Zone, Two-Speed Compressor

Contents

Container Refrigeration Unit Operation Container Refrigeration Unit Models Operating Precautions General Safety NoticesMaintenance Precautions Safety-1 268-07 Specific Warning and Caution Statements Safety-2 Table of Contents Operation Iii 268-07 Section Service List of Illustrations 27 Suction Solenoid Valve SSV -- Alco List of Tables Introduction Section Introduction Model Model Chart Transformer Humidity Sensor TransFresh PID 69NT40-511-58 69NT40-511-71 69NT40-511-95 69NT40-521-10 Refrigeration Unit -- Front Section General Description Evaporator Section Refrigeration Unit -- Rear Panels Removed 1011 Compressor Section Condenser Section 268-07 Condenser Section 1716 Receiver Section Units with Water-Cooled Condenser Water-Cooled Condenser Section Optional 6 9 Control Box with a Single-Speed Compressor123 Control Box with a Two-Speed Compressor Optional Refrigeration System Data Electrical Data Step-Up Power Autotransformer Power Autotransformer OptionalTo Operate Unit on 380/460 vac Power Supply To Operate Unit on 190/230 vac Power Supply Full Open or Closed Positions Upper Fresh AIR Makeup VentLower Fresh AIR Makeup Vent Optional Air Sampling for Carbon Dioxide CO2 Level Refrigeration Circuit with Receiver 10. Refrigeration Circuit with Receiver 268-07 WATER-COOLED Condenser Optional Water--Cooled Condenser with Water Pressure Switch WPWater-Cooled Condenser with Condenser Fan Switch CFS Section Operation Suction Solenoid ValveSuction Solenoid Override Remote Monitoring Optional Unsafe Condition Safety Device Device Setting Safety and Protective DevicesSafety and Protective Devices Micro-Link 2i Controller/DataCORDER Module Brief Description MICRO-LINK 2i Controller Module Configuration Software Procedure for loading softwareOperational Software Controller Programming Memory Cards Configuration Title Default Option Number Controller Configuration Variables KEY Function General Layout of the Controller Section Display Module Controller Function Code Assignments Controller Function CodesCode Title Description Inapplicable Functions Display CPC Variable option 34 is set to F refer to Table Code Title Description Controller Alarms ALL Models Controller Alarm IndicationsModel 69NT40-511-72 Check for recharging or replacing battery pack Microprocessor Error DescriptionERR Condenser Pressure Control CPC Controller Temperature Control Section Operation in the economy mode Code 34 set to on PRE-TRIP Diagnostics PRE-TRIP Selection Menu Title Description Pre-Trip ModePre-Trip Test Codes Seconds Component Normal Logic Crel 3 minutes Seconds Minutes Component Normal LogicCrel Addition, the test will fail if Addition, this test is skipped if Fail Integrated Datacorder Optional Setting Factory Default ConfigurationDataCORDER Configuration Code # Title Description DataCORDER Function Codes DataCORDER Alarms DataCORDER Alarm Indications Access to DataCORDER Functions DataCORDER Alarm Configurations Description Selection DataCorder Standard Configuration Description Tion Generic ModeStandard Mode Pre-Trip Data Recording USDA/ Message Trip CommentUsda Recording DataCORDER Scrollback Usda Cold Treatment Procedure Test # Title Data 10. DataCORDER Pre-Trip Data Standard Configuration Report Sample Cooling Falling Rising TemperatureSET Point AIR YES Step Compressor Cycles OFF PRE-TRIP Inspection Before Starting Operation Starting and Stopping Instructions Units equipped with the integrated DataCORDERAfter Starting Inspection Unit Operation Probe Check Defrost indicator will remain on throughout this periodController Set Above --10C +14F, or --5C +23F optionally Cooling in High Speed with Two-Speed Compressor See Figure 268-07 Cooling in High Speed with Two-Speed Compressor Control Transformer Cooling in Low Speed with Two-Speed Compressor See Figure Cooling in Low Speed with Two-Speed Compressor 268-07 Cooling with Single-Speed Compressor See Figure Cooling with Single-Speed Compressor 268-07 Heating See Figure Heating Mode 268-07 Arctic Snap Freeze OptionDefrost = 18 Volt Energized Circuit = De-energized Circuit Two-Speed Compressor Holding Zone Holding Zone Unit Operates Long or Continuously in Cooling Unit Runs but has Insufficient Cooling Unit will not Defrost Properly RemedyUnit will not Terminate Heating No Evaporator AIR Flow or Restricted AIR Flow Temperature Controller MalfunctionAbnormal Noise or Vibrations WATER-COOLED Condenser or Water Pressure Switch Power Autotransformer Malfunction Closed Manifold Gauge SETOpened Removing the Manifold Gauge Set Port To Discharge Service orBlue Hose Blue Knob Refrigerant Leak Checking Suction and Discharge Service ValvesPumping the Unit Down Refrigerant Charge Evacuation and Dehydration 268-07 Vacuum Pump Connections Compressor -- Model 06DR Adding Refrigerant to System Full ChargeAdding Refrigerant to System Partial Charge 10 9 8 Compressor DisassemblyTurn off valves on both hoses to pump Exploded View of Valve Plate Jack here Low Profile Gear Oil Pump Oil Pump and Bearing Head 11. Crankshaft Assembly Compression Rings Compressor Reassembly If compressor is without oil Adding Oil to Service Replacement CompressorCompressor OIL Level To Check the Oil Level in the Compressor To Check Filter-Drier High Pressure SwitchTo Replace Filter-Drier FILTER-DRIER To Replace the Evaporator Coil To Replace the Evaporator Fan AssemblyTo disassemble the Evaporator Fan Assembly When to check for a defective capacitor To assemble the Evaporator Fan AssemblyEvaporator FAN Motor Capacitors Removing the capacitor Capacitor analyzer Condenser FAN and Motor AssemblyTo Replace Condenser Coil Condenser Coil Unit Off OhmmeterUnit Running To replace the recording thermometer element BatterySaginomiya Recording Thermometer Calibration Power Autotransformer Optional Maintenance of Painted SurfacesSensor Checkout Procedure AMBS, DTS, RRS, RTS, SRS & STS Replacing Sensor Probe RRS or SRS RTS or STSReplacing Sensor STS and SRS OLD Style Probe Holder Replacing Sensor RRS and RTS Sensor Mm 1-5/8 inches 35 mm 1/4 inchSensor Cable Heat Shrink Large Heat Shrink Tubing Replacing Sensor Ambs or DTS Ambs or DTSSensor 25.4 mm 1.0 inch Mounting Stud 35mm 1/4 inch Sensor Crimp Fitting Heat Shrink Crimp FittingTubing Suction Solenoid Valve SSV Coil Checkout ProcedureReplacing the Coil Replacing Valve Internal Parts -- Alco See Figure To Replace Valve Ambient Temperature Cold CoilThermostatic Expansion Valve Removing Expansion Valve See Figure To Measure Superheat Installing Expansion Valve Removal Removing and Installing the Controller/DataCORDER ModuleCONTROLLER/DATACORDER Handling of Controller/DataCORDER Procedure for loading Operational Software InstallationProcedure for loading Configuration Software Controller/DataCORDER Programming Procedure What You Will Need Summary of Procedure Pump Fine mesh Support Screen Detailed ProcedureReturn Temperature Resistance Ohms Partlow Bulb Temperature-Resistance ChartWhat You Can Do For Further Help Ambs and DTS Bolt DIA Threads Torque MKG Free Spinning Recommended Bolt Torque ValuesNonfree Spinning Locknuts ETC Wear Limits For Compressors Compressor Torque Values Temperature Pressure 0F --17.8C Box 35F 1.7C Box 35 F 1.7 C Box 17.8 C Box Ambient Air Temperature35F 1.7C Box 0F --17.8C Box Please Refer to File Diagrams For Schematics and Diagrams Index-1 268-07 Index Index-2 Index-3 268-07 Index-4 Index-5 268-07 Index-6