Trane Custom Climate Changer Air Handlers, CAH-SVX01A-EN manual Operating Environment, Controls

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General Information

Operating

Environment

When considering the placement of the Custom Climate Changer air handler, it is important to consider the operating environment. The acceptable ambient temperature range for unit operation is -40ºF to 140ºF (-40ºC to 60ºC).

For heating applications, a special motor may be required to withstand the higher temperatures. Motors with Class B insulation are acceptable for ambient temperatures up to 104º F, while motors with Class F insulation can withstand ambient temperatures to +140º F (60º C).

For the units furnished with gas furnaces, the heating demands require a special motor to withstand the higher temperatures. These motors are furnished with Class “H” insulation to withstand this rigorous duty.

Note: The customer should provide adequate freeze protection for the coils.

Controls

Wiring Sizes and

Connections

As a standard, there are no penetrations into the Custom air handler for any field-provided wiring or device. Before installation, consider overall unit serviceability and accessibility before mounting, running wires (power), making cabinet penetrations, or mounting any components to the module cabinet.

Wiring to the unit must be provided by the installer and must comply with all national and local electrical codes. The fan motor nameplate includes a wiring diagram. If there are any questions concerning the wiring of the motor, be sure to write down the information from the motor nameplate and contact your local fan motor manufacturer representative for assistance.

Factory-Mounted Controls

Small items that cannot be factory mounted will ship inside the control enclosures. Larger items may ship inside the fan module.

Note: All control valves ship directly to the “ship-to address” from the vendor unless another address is given on the Trane sales order.

Depending on job requirements, the customer may need to provide

120 Vac control power. A dedicated

15-amp circuit is recommended.

Factory-mounted control systems ordered with factory-mounted starters or VFDs are supplied with line to 24 Vac control transformers. No additional power wiring is required.

For a more in-depth understanding of controls, refer to the following manuals:

For factory-configured AH540/ AH541 controllers, CNT-SVX05B-EN

For programmable MP580 controllers, CNT-SVP01A-EN

For hardware installation, CNT-SVN01A-EN

For Danfoss VFD, TR1-SVX10A-EN

For universal programmable control modules (UPCMs):

EMTX-PG-5

EMTX-IN-22A

Custom air handlers and/or field- installed accessories that must be stored for a period of time prior to being installed must be protected from the elements. All controllers and electrical/ electronic components should be stored in conditions of -20 to 120°F and 5- to 95-percent relative humidity non- condensing. Electrical components are not moisture-tolerant.

Note: The warranty will not cover damage to the unit or controls due to negligence during storage. A controlled indoor environment is recommended for proper storage. For further storage considerations, refer to “Job Site Storage Recommendations” on page 7.

CAH-SVX01A-EN

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Contents July Custom Climate Changer Air HandlersCAH-SVX01A-EN Protecting Environment Unit DescriptionContents Operating Environment Wiring Sizes ConnectionsControls Factory-Mounted ControlsUltraviolet UV Germicidal Irradiation Lights optional Resolving Shipping Damage Receiving ChecklistJob Site Storage Recommendations Use Canvas OnlyPreparing the Unit Site Pre-Installation Requirements General StorageLong-Term Storage Outdoor Storage ConsiderationsTypical 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 Isolator Adjustment Component Installation RequirementsDuct Connections FansMagnahelic Air Filter Gage Traq DampersControl Dampers Front Load Filters Installation Air FiltersBag or Cartridge Filters Outdoor Unit Weather HoodsCoil Piping Connections Use a Backup WrenchGeneral Recommendations Prevent Coil DamageWater 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 Hazardous Voltage with WiringUse Copper Conductors Only CapacitorsExternal Insulating Requirements Junction box mounting and wiring detailsFan-Related Checks Pre-Startup ChecklistCoil-Related Checks Proper Water Treatment Motor-Related ChecksCalculate Motor Voltage Imbalance Unit OperationGeneral Checks Tension Belts Correctly Startup Tension the Fan BeltStartup Multibelt Check Determine Fan SpeedSheave Alignment Routine Maintenance Throwaway Filters Air FiltersPermanent Filters Front Load FiltersDrain Pans Inspecting and Cleaning FansFans Bearing Set Screw AlignmentFan Motor Inspection Fan Bearing LubricationSteam and Water Coils CoilsType K Cooling Coils Refrigerant CoilsMoisture Purge Cycle Internal Insulation Ultraviolet UV Germicidal Irradiation Lights Replacement of ultraviolet bulbsTroubleshooting Alignment section on CAH-SVX01A-EN CAH-SVX01A-EN Trane