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

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.

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