American Power Conversion 250 A manual Emergency Manual Operation

Emergency Manual Operation

Warning—before you operate the ATS manually

The procedures in this section only apply to situations where automatic operation through the ATS is impossible. One example would be the ATS monitoring unit’s inability to function. If automatic operation through the ATS is impossible and you must power your load from the generator, follow the instructions in “How to power the load from the generator” on page 23.

Caution

DANGER

The ATS switches should be operated manually ONLY when automatic operation is disabled. If automatic operation is enabled, the ATS will attempt to actuate the switches to return to the preferred source.

All transfers performed when automatic operation is disabled must be open transfers—BOTH switches must be turned OFF before the switch for the desired source is turned ON. Attempting a closed transfer will damage equipment.

22 InfraStruXure Power Generation System