2009/01/26 Caterpillar

Uninterruptible Power Supply:

ES12F (S/N: CZE217-UP)

UPS 1000S (S/N: CZS110-UP)

UPS 120 (S/N: CNK102-UP)

UPS 1200S (S/N: CZT131-UP)

UPS 150 (S/N: CPC130-UP)

UPS 250 (S/N: CNM240-UP; APZ350-UP)

UPS 300 (S/N: CNJ430-UP; CPZ371-UP)

UPS 500 (S/N: CSE155-UP)

UPS 600 (S/N: CTX319-UP)

UPS 750 (S/N: CPM172-UP)

UPS 900 (S/N: CRY381-UP)

The operating parameter that is known as the "APC Not Configured" is now used during the initial start-up of a system on the systems that are listed above. The default setting will be "1" when the unit is shipped from the factory. The "APC" will not be configured when the unit is shipped.

Resolution

You must contact Active Power in order to obtain a password for the preheat cycle. The password will also allow you to change the operating parameter. Call 1-800-288-5081. The procedure is required for each multiple module unit (MMU) in a multiple module system (MMS).