Trane Custom Climate Changer Air Handlers manual Pre-Startup Checklist, Fan-Related Checks

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Startup

Once the Custom Climate Changer air handler has been assembled and installed, attention must be directed to individual components for proper operation. Before operating the unit, complete the pre-startup checklist.

￿WARNING Hazardous Voltage with Capacitors!

Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided by Trane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.

Note: For additional information regarding the safe discharge of capacitors, see PROD-SVB06A-EN.

Pre-Startup

Checklist

Fan-Related Checks

If the unit is internally isolated, ensure that the fan isolator tie- down bolts have been removed.

Rotate all fan wheels manually to confirm they turn freely in the proper direction.

Check fan shaft bearings, fan wheel, and drive sheave set screws for proper torque settings.

Fan sheaves should be tight and aligned.

Bearing set screws should be torqued.

Inspect the inlet vane assembly for freedom of movement. If resistance is above the recommended torques, check the assembly for any binding or misalignment. Do not force the vanes.

Check fan drive belt tension.

Inspect fan motor and bearings for proper lubrication, if necessary.

Check the motor lubrication, if necessary.

Remove and clean grease plugs.

Check for moisture in the grease. If moisture is present, remove the motor and send it to an authorized repair shop for bearing inspection/ replacement. If no moisture is present, refer to the motor manufacturer’s lubrication recommendations for proper lubrication.

Check the motor lubrication, if necessary.

Remove and clean grease plugs.

Check for moisture in the grease. If moisture is present, remove the motor and send it to an authorized repair shop for bearing inspection/ replacement. If no moisture is present, refer to the motor manufacturer’s lubrication recommendations for proper lubrication.

Coil-Related Checks

CAUTION

Proper Water Treatment!

The use of untreated or improperly treated water in coils may result in scaling, erosion, corrosion, algae, or slime. Engage the services of a qualified water treatment specialist to determine what water treatment, if any, is required. Trane assumes no responsibility for equipment failures that result from untreated or improperly treated water.

Ensure coil and condensate drain piping connections are complete.

Check the piping and valves for leaks.

Open or close the valves to check operation.

The drain lines should be open.

If unit has a refrigerant coil, ensure that it has been charged and leak-tested according to the instructions provided with the condenser equipment. Adjust the superheat setting.

Remove all foreign material from the drain pan and check the pan opening and condensate line for obstructions.

For steam coils, slowly turn the steam on full for at least

10 minutes before opening the fresh air intake on units with fresh air dampers.

Motor-Related Checks

Check motor winding. An acceptable winding resistance reading is from 6 meg-ohms to infinity. If reading is less than 5 mega-ohms, the winding should be dried out in an oven or by a blower.

Inspect the entire motor for rust and corrosion.

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Contents July Custom Climate Changer Air HandlersCAH-SVX01A-EN Protecting Environment Unit DescriptionContents Factory-Mounted Controls Wiring Sizes ConnectionsOperating Environment ControlsUltraviolet UV Germicidal Irradiation Lights optional Use Canvas Only Receiving ChecklistResolving Shipping Damage Job Site Storage RecommendationsOutdoor Storage Considerations Pre-Installation Requirements General StoragePreparing the Unit Site Long-Term StorageTypical Curb Installation Checklist Roof Curb InstallationGeneral Lifting Considerations Lifting and RiggingAssembly Hardware Unit AssemblyJoining Sections Edge-to- Edge TCP Model Assembly InstructionsTCP base assembly TCP Base Section Assembly TypicalTCP Outdoor Roof Section Assembly Typical Installation TCP Wall Section Assembly TypicalInstallation TCP Indoor Roof Section Assembly Typical Indoor Roof Assembly CompleteBase to Wall Assembly Complete Joining sections Edge to Edge TCC Model Assembly InstructionsApply butyl tape to shipping splits Add caulk along the seam Join internal shipping split frame Installation TCC indoor roof sections assembly typical TCC wall sections assembly typicalJoin outdoor roof panels at the seams Installation TCC outdoor roof sections assembly typicalTrim roof joint strip Fans Component Installation RequirementsIsolator Adjustment Duct ConnectionsControl Dampers Traq DampersMagnahelic Air Filter Gage Front Load Filters Installation Air FiltersBag or Cartridge Filters Outdoor Unit Weather HoodsPrevent Coil Damage Use a Backup WrenchCoil Piping Connections General RecommendationsWater Damage Installation Drain Pan TrappingCoil Damage Installation Steam Coil PipingInstallation Typical piping for type 5W one-row water coil Water Coil PipingLiquid Lines Installation Refrigerant Coil PipingType F refrigerant coil with packed elbow Valve DamageSingle-circuit evaporator coil with one distributor Examples of Field-Installed Evaporator PipingSingle-circuit evaporator coil with two distributors Single-circuit evaporator coil with four distributors Dual-circuit evaporator coil with two distributors Dual-circuit evaporator coil with four distributors Dual-circuit evaporator coil with eight distributors Capacitors WiringHazardous Voltage with Use Copper Conductors OnlyExternal Insulating Requirements Junction box mounting and wiring detailsMotor-Related Checks Pre-Startup ChecklistFan-Related Checks Coil-Related Checks Proper Water TreatmentGeneral Checks Unit OperationCalculate Motor Voltage Imbalance Tension Belts Correctly Startup Tension the Fan BeltStartup Sheave Alignment Determine Fan SpeedMultibelt Check Routine Maintenance Front Load Filters Air FiltersThrowaway Filters Permanent FiltersBearing Set Screw Alignment Inspecting and Cleaning FansDrain Pans FansFan Motor Inspection Fan Bearing LubricationRefrigerant Coils CoilsSteam and Water Coils Type K Cooling CoilsMoisture Purge Cycle Internal Insulation Ultraviolet UV Germicidal Irradiation Lights Replacement of ultraviolet bulbsTroubleshooting Alignment section on CAH-SVX01A-EN CAH-SVX01A-EN Trane