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INTRODUCTION
Congratulations on your purchase of a MINUTEMAN "AT" Series Synchronized Sinewave
Uninterruptible Power Supply (UPS). Each unit is designed to provide superior, total power
protection for personal computers, telephone systems and any other sensitive or critical electronic
equipment against all commercial power anomalies. These models provide light and audible
alarm indications, so the user will know the status of both commercial power and the
MINUTEMAN "AT" Power Supply at all times. Each unit is designed to be maintenance free and
to provide years of excellent service. Other features of the "AT" Series include:
Light weight and small footprint
Quiet
operation
High non-linear current capability
(Crest Ratio = 3:1)
Computer grade sinewave output
LAN Communications Port
RECEIVING INSPECTION
Remove and inspect the unit for shipping damage. If damage is found, immediately notify the
carrier and your dealer. If no damage is found save both the shipping container and the packing
foam in case the unit may later need to be returned to the factory or shipped to another location.
WARRANTY REGISTRATION
Locate your warranty registration card in the back of this manual and complete and return within
10 days of receipt of the unit(s) to register your warranty. Failure to register your warranty
renders it non-valid.
IMPORTANT SAFETY INSTRUCTIONS
(Save these instructions)
Units in this manual are intended for installation in a temperature-controlled, indoor area
free of conductive contaminants.
Read all instructions carefully before operating the UPS. All operating instructions should
be followed and all cautions must be adhered to.
CAUTION -- UPS units use batteries for generation of AC voltages, so output receptacles
may be electrically hot even when the unit is not connected to commercial power.
Trained service personnel should perform all repairs, since an electrical shock hazard
exists.
CAUTION -- Do not remove the cover, there are no user serviceable parts inside.
CAUTION -- The 3-wire plug supplied with the unit provides earth ground for the UPS
unit chassis to prevent electrical shock. Plug the UPS unit into a 3-wire grounding type,
commercial receptacle with grounding conductor connected to earth ground at the
service equipment. Removal
of the ground pin from the plug or use of a 3-wire-to-2-wire
adapter will defeat this safety feature and may result in a shock hazard. Additionally, if
