Powerware 9330 operation manual Environment Considerations, Preparing for Wiring the UPS System

The basic environmental requirements for operation of the UPS system are:

Ambient Temperature Range:	0---40˚C (32---104˚F)
Recommended Operating Range:	20---25˚C (68---77˚F)
Maximum Relative Humidity:	95%, noncondensing

The UPS cabinets use forced air cooling to regulate internal component temperature. Air inlets are in the front of the cabinet, and outlets are in the rear of the cabinet. You must allow clearance in front of and behind each cabinet for proper air circulation. Refer to Drawing 164201300---3 of Appendix A for clearance requirements.

1.1.3Environment Considerations

The life of the UPS system is adversely affected if the installation does not meet the following guidelines:

1.The system must be installed on a level floor suitable for computer or electronic equipment.

2.The system must be installed in a temperature-controlled indoor area free of conductive contaminants.

Failure to follow guidelines may invalidate UPS warranty.

1.1.4Preparing for Wiring the UPS System

For external wiring requirements, including the minimum AWG size of external wiring, refer to Tables A through F in Appendix A for the Powerware 9330 (10 kVA---20 kVA) UPS or Tables G through M in Appendix A for the Powerware 9330 (25 kVA---40 kVA) UPS. The power wiring connections for this equipment are rated at 90˚C. Control wiring for EPO and optional accessories (such as building alarms, and monitoring interface) should be connected at the customer interface panels and terminal blocks located inside the UPS using class 1 wiring methods.

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