Carrier 38AU appendix START-UP Checklist, II. PRE-START-UP Outdoor Unit

Page 55

 

 

 

START-UP CHECKLIST

 

 

 

I. PRELIMINARY INFORMATION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR: MODEL NO.

 

 

 

 

 

SERIAL NO.

 

 

 

 

INDOOR: AIRHANDLER MANUFACTURER

 

 

 

 

 

 

 

 

 

 

 

 

MODEL NO.

 

 

 

 

 

SERIAL NO.

 

 

 

 

ADDITIONAL ACCESSORIES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

II. PRE-START-UP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IS THERE ANY SHIPPING DAMAGE?

(Y/N)

 

 

 

 

 

 

 

 

 

 

 

 

IF SO, WHERE:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

WILL THIS DAMAGE PREVENT UNIT START-UP?

 

(Y/N)

 

 

 

 

 

 

CHECK POWER SUPPLY. DOES IT AGREE WITH UNIT?

 

(Y/N)

 

 

 

 

HAS THE GROUND WIRE BEEN CONNECTED?

(Y/N)

 

 

 

 

 

 

 

 

 

 

HAS THE CIRCUIT PROTECTION BEEN SIZED AND INSTALLED PROPERLY?

(Y/N)

 

 

 

ARE THE POWER WIRES TO THE UNIT SIZED AND INSTALLED PROPERLY?

(Y/N)

 

 

CONTROLS

ARE THERMOSTAT AND INDOOR FAN CONTROL WIRING CONNECTIONS MADE AND CHECKED?

(Y/N)

 

 

 

 

 

 

ARE ALL WIRING TERMINALS (including main power supply) TIGHT?

(Y/N)

 

 

HAS CRANKCASE HEATER BEEN ENERGIZED FOR 24 HOURS?

(Y/N)

 

 

INDOOR UNIT

HAS WATER BEEN PLACED IN DRAIN PAN TO CONFIRM PROPER DRAINAGE?

(Y/N)

ARE PROPER AIR FILTERS IN PLACE?

(Y/N)

 

 

 

 

 

 

 

HAVE FAN AND MOTOR PULLEYS BEEN CHECKED FOR PROPER ALIGNMENT?

(Y/N)

DO THE FAN BELTS HAVE PROPER TENSION?

(Y/N)

 

 

 

 

 

 

HAS CORRECT FAN ROTATION BEEN CONFIRMED?

(Y/N)

 

 

 

PIPING

ARE LIQUID LINE SOLENOID VALVES LOCATED AT THE INDOOR COILS AS REQUIRED? (Y/N)

HAVE LEAK CHECKS BEEN MADE AT COMPRESSOR, OUTDOOR AND INDOOR COILS,

TXVs (Thermostatic Expansion Valves), SOLENOID VALVES, FILTER DRIERS, AND FUSIBLE PLUGS

WITH A LEAK DETECTOR?

(Y/N)

 

 

 

 

 

 

 

LOCATE, REPAIR, AND REPORT ANY LEAKS.

 

 

 

 

 

 

HAVE LIQUID LINE SERVICE VALVES BEEN OPENED?

(Y/N)

 

 

HAVE SUCTION LINE SERVICE VALVES BEEN OPENED?

(Y/N)

 

 

38AU

55

Image 55
Contents Contents Installation, Start---Up Service InstructionsInstallation Guideline Safety ConsiderationsReplacement/Retrofit R-22 to PuronR Unit Damage Hazard InstallationMchx UnitRtpf 38AUD*25 38AUZ*25Condenser Fans Unit Size 38AURefrigerant TYPE‡ CompressorScroll Pressurestat Settings kPa High CutoutNominal Capacity kW Rtpf Shipping Charge kgOil Charge A/B oz Rtpf Shipping Charge A/B lbFace Area sq ft total Rows/Fins per inch FPI Qty...r/s Motor Hp Nema Diameter mm Operating Weight kg Novation Coil Al TubeRtpf Shipping Charge A/B kg Oil Charge A/B LU Z a 2 5 a 0 G 6 a 0 a 0 a Do not Bury Refrigeration Lines InstallationMatching 38AU Model To Evaporator Coil Jobsite SurveyCheck 38AU Model with Evaporator Coil Connections Provide Safety ReliefSlab Mount Equivalent Lengths for Common Fittings ftSuction Riser Liquid Lift38AUZ 16-25 Piping Recommendations Single-Circuit Unit Hot Gas Bypass 38AUD 16-25 Piping Recommendations Two-Circuit UnitVertical Separation outdoor unit above indoor unit Insulate Suction LinesRefrigerant Specialties Part Numbers Install Filter Driers and Moisture IndicatorsMake Piping Connections Install Liquid Line Solenoid ValveCapacity Control Liquid Line Solenoid Valve Selecting an AccumulatorPreliminary Charge Evacuation/DehydrationAll Units Field Power SupplyUnits with Factory-Installed Disconnect Fire HazardElectrical Operation Hazard Convenience OutletsConvenience Outlet Utilization Notice Label Field Control WiringThermostat Control Transformer WiringUnbalanced 3-Phase Supply Voltage Unit Wire/Fuse or Hacr Breaker Sizing DataPreliminary Checks PRE-START-UPSTART-UP System CheckStart Unit Advanced Scroll Temperature Protection AstpAdjust Refrigerant Charge Using plotted operating pointFinal Checks 38AUZ*25 Check Compressor Oil Level38AUD*16 Charging Chart Novation 38AUZ*16 Charging Chart Rtpf 38AUD*16 Charging Chart Rtpf 38AUD*25 Charging Chart Rtpf Typical 38AUZ Wiring Diagram 15 Ton 230V Tandem Unit Shown Typical 38AUD Wiring Diagram 15 Ton 230V Dual Unit Shown Base Unit Controls Operating SequenceEquipment Damage Hazard Routine System MaintenanceService Refrigeration SystemFactory High-Flow Access Ports Field Refrigerant Access PortsLiquid Line Filter Drier Input Terminal Voltage Comfort Alert Diagnostic ModuleLockout LED Status CodesCompressor Protection 38AUD Size 16 Cabinet LPS 38AUZ,D Size 25 Cabinet 38AUZ*25 Compressor Assembly Rear View NOVATIONt Type Novation Coil Cleaning and MaintenanceRepairing Novation Condenser Tube Leaks Coil Type IdentificationReplacing NOVATIONt Condenser Coil Routine Cleaning of Round-Tube Plate Fin Rtpf CoilsUnit Reliability Hazard Fastener Torque Values TroubleshootingProblem Solution Compressor does not RUN Compressor Stops on HIGH-PRESSURE SwitchSystem is Noisy Problem Solution Compressor Cycles on LOW-PRESSURE SwitchCompressor Running but Cooling Insufficient Unit Operates TOO Long or ContinuouslyAppendix a Wiring Diagram ListAppendix B Operation Low Ambient Option Factory InstalledTroubleshooting Appendix C38AUZ*16 & 38AUD*16 Novation 38AUZ*16/25 & 38AUD*16/25 Rtpf Motormaster Sensor LocationDimensions --- Inches Unit Baffle Wind Baffle DimensionDimensions --- MM Unit Baffle Wind Baffles Fabrication 15 Ton Wind Baffle Brackets Fabrication Front Front Back Left Right Catalog No 38AU---09SI II. PRE-START-UP Outdoor Unit START-UP ChecklistCheck Voltage Imbalance