Removing the Manifold Gauge Set | Carrier 69NT40-511-199 instruction

CAUTION

To prevent trapping liquid refrigerant in the service valve after charging, perform the following steps while the compressor is ON and before disconnecting the manifold gauge set:

SBackseat applicable discharge or manual liquid line valve.

SMidseat manifold gauge set hand valves.

SAllow the gauge set to pull down to suction pressure.

b. Removing the Manifold Gauge Set

1.While the compressor is still ON, backseat the discharge service valve.

2.Midseat both hand valves on the manifold gauge set and allow the pressure in the manifold gauge set to be drawn down to suction pressure. This enables the liquid that condensed in the high side hose to be returned to the system.

3.Backseat the suction service valve. Backseat both field service couplings, and remove the couplings from the service ports.

4.Install both service valve stem caps and service port caps (finger-tight only).

T-268-07

6-2

Image 96

Carrier 69NT40-511-199, 69NT40-521 manual Removing the Manifold Gauge Set

Contents

Container Refrigeration Unit Operation Container Refrigeration Unit Models General Safety Notices Operating PrecautionsMaintenance Precautions Safety-1 268-07 Safety-2 Specific Warning and Caution Statements Table of Contents Operation Section Service Iii 268-07 List of Illustrations 27 Suction Solenoid Valve SSV -- Alco List of Tables Section Introduction Introduction Model Chart Model Transformer Humidity Sensor TransFresh PID 69NT40-511-58 69NT40-511-71 69NT40-511-95 69NT40-521-10 General Description Refrigeration Unit -- Front Section Evaporator Section Refrigeration Unit -- Rear Panels Removed Compressor Section 1011 Condenser Section Condenser Section 268-07 Receiver Section 1716 Water-Cooled Condenser Section Optional Units with Water-Cooled Condenser Control Box with a Single-Speed Compressor 1236 9 Control Box with a Two-Speed Compressor Optional Refrigeration System Data Electrical Data Power Autotransformer Optional Step-Up Power AutotransformerTo Operate Unit on 380/460 vac Power Supply To Operate Unit on 190/230 vac Power Supply Upper Fresh AIR Makeup Vent Full Open or Closed PositionsLower 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 with Water Pressure Switch WP Water-Cooled Condenser with Condenser Fan Switch CFSWATER-COOLED Condenser Optional Section Suction Solenoid Valve OperationSuction Solenoid Override Remote Monitoring Optional Safety and Protective Devices Safety and Protective DevicesUnsafe Condition Safety Device Device Setting MICRO-LINK 2i Controller Module Micro-Link 2i Controller/DataCORDER Module Brief Description Procedure for loading software Configuration SoftwareOperational Software Controller Programming Memory Cards Controller Configuration Variables Configuration Title Default Option Number General Layout of the Controller Section KEY Function Display Module Controller Function Codes Controller Function Code AssignmentsCode Title Description Inapplicable Functions Display CPC Variable option 34 is set to F refer to Table Code Title Description Controller Alarms Controller Alarm Indications Model 69NT40-511-72ALL Models Check for recharging or replacing battery pack Error Description ERRMicroprocessor Controller Temperature Control Condenser Pressure Control CPC Section Operation in the economy mode Code 34 set to on PRE-TRIP Diagnostics PRE-TRIP Selection Menu Pre-Trip Mode Pre-Trip Test CodesTitle Description Component Normal Logic Crel 3 minutes Seconds Component Normal Logic CrelSeconds Minutes Addition, this test is skipped if Addition, the test will fail if Fail Integrated Datacorder Optional Configuration DataCORDER ConfigurationSetting Factory Default DataCORDER Function Codes Code # Title Description DataCORDER Alarms DataCORDER Alarm Indications DataCORDER Alarm Configurations Description Selection Access to DataCORDER Functions Generic Mode Standard ModeDataCorder Standard Configuration Description Tion USDA/ Message Trip Comment Usda RecordingPre-Trip Data Recording Usda Cold Treatment Procedure DataCORDER Scrollback 10. DataCORDER Pre-Trip Data Test # Title Data Standard Configuration Report Sample Falling Rising Temperature CoolingSET Point AIR Step YES Compressor Cycles OFF Operation PRE-TRIP Inspection Before Starting Units equipped with the integrated DataCORDER Starting and Stopping InstructionsAfter Starting Inspection Unit Operation Defrost indicator will remain on throughout this period Probe CheckController Set Above --10C +14F, or --5C +23F optionally Cooling in High Speed with Two-Speed Compressor See Figure 268-07 Control Transformer Cooling in High Speed with Two-Speed Compressor 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 Snap Freeze Option DefrostArctic = 18 Volt Energized Circuit = De-energized Circuit Holding Zone Two-Speed Compressor Holding Zone Unit Runs but has Insufficient Cooling Unit Operates Long or Continuously in Cooling Remedy Unit will not Terminate HeatingUnit will not Defrost Properly Temperature Controller Malfunction Abnormal Noise or VibrationsNo Evaporator AIR Flow or Restricted AIR Flow Power Autotransformer Malfunction WATER-COOLED Condenser or Water Pressure Switch Manifold Gauge SET OpenedClosed Removing the Manifold Gauge Set To Discharge Service or PortBlue Hose Blue Knob Suction and Discharge Service Valves Pumping the Unit DownRefrigerant Leak Checking Evacuation and Dehydration Refrigerant Charge 268-07 Vacuum Pump Connections Adding Refrigerant to System Full Charge Adding Refrigerant to System Partial ChargeCompressor -- Model 06DR Compressor Disassembly Turn off valves on both hoses to pump10 9 8 Jack here Exploded View of Valve Plate Oil Pump and Bearing Head Low Profile Gear Oil Pump 11. Crankshaft Assembly Compressor Reassembly Compression Rings Adding Oil to Service Replacement Compressor If compressor is without oilCompressor OIL Level To Check the Oil Level in the Compressor High Pressure Switch To Check Filter-DrierTo Replace Filter-Drier FILTER-DRIER To Replace the Evaporator Fan Assembly To disassemble the Evaporator Fan AssemblyTo Replace the Evaporator Coil To assemble the Evaporator Fan Assembly When to check for a defective capacitorEvaporator FAN Motor Capacitors Removing the capacitor Condenser FAN and Motor Assembly Capacitor analyzerTo Replace Condenser Coil Condenser Coil Ohmmeter Unit RunningUnit Off Battery To replace the recording thermometer elementSaginomiya Recording Thermometer Calibration Maintenance of Painted Surfaces Power Autotransformer OptionalSensor Checkout Procedure AMBS, DTS, RRS, RTS, SRS & STS Replacing Sensor Probe RTS or STS RRS or SRSReplacing Sensor STS and SRS OLD Style Probe Holder Sensor Mm 1-5/8 inches 35 mm 1/4 inch Sensor Cable Heat Shrink Large Heat Shrink TubingReplacing Sensor RRS and RTS Ambs or DTS Replacing Sensor Ambs or DTSSensor 25.4 mm 1.0 inch Mounting Stud 35mm 1/4 inch Sensor Crimp Fitting Heat Shrink Crimp FittingTubing Coil Checkout Procedure Suction Solenoid Valve SSVReplacing the Coil Replacing Valve Internal Parts -- Alco See Figure Ambient Temperature Cold Coil To Replace ValveThermostatic Expansion Valve Removing Expansion Valve See Figure Installing Expansion Valve To Measure Superheat Removing and Installing the Controller/DataCORDER Module RemovalCONTROLLER/DATACORDER Handling of Controller/DataCORDER Installation Procedure for loading Operational SoftwareProcedure for loading Configuration Software Controller/DataCORDER Programming Procedure Summary of Procedure What You Will Need Detailed Procedure ReturnPump Fine mesh Support Screen Partlow Bulb Temperature-Resistance Chart Temperature Resistance OhmsWhat You Can Do For Further Help Ambs and DTS Recommended Bolt Torque Values Bolt DIA Threads Torque MKG Free SpinningNonfree Spinning Locknuts ETC Wear Limits For Compressors Compressor Torque Values Temperature Pressure 35F 1.7C Box 0F --17.8C Box Ambient Air Temperature 35F 1.7C Box 0F --17.8C Box35 F 1.7 C Box 17.8 C Box Please Refer to File Diagrams For Schematics and Diagrams Index Index-1 268-07 Index-2 Index-3 268-07 Index-4 Index-5 268-07 Index-6