Xtreme Power Conversion Corporation
M90S-4S User’s Manual
Page 4
Uninterruptible Power Supply
1 Safety
1.1 Important Safety Instructions
This UPS contains LETHAL VOLTAGES. All repairs and service must be performed by AUTHORIZED SERVICE PERSON-
NEL ONLY. There are NO USER SERVICEABLE PARTS inside the UPS.
WARNING:
• The UPS designed for commercial and industrial purpose, it is forbidden to apply for any life sustainment
and support.
• The UPS system contains its own energy source. The output terminals may carry live voltage even when
UPS is disconnected to an AC source.
• To reduce the risk of fire or electrical shock, UPS installation has to be in a controlled room where tem-
perature and humidity are monitored. Ambient temperature must not exceed 40°C. The system is only for
indoor use.
• Ensure all power is disconnected before installation or service.
• Service and maintenance should be performed by qualified personnel only.
Before working on this circuit
• Isolate Uninterruptible Power System (UPS).
• Then check for Hazardous Voltage between all terminals including the protective earth.
Risk of Voltage Backfeed
The isolation device must be able to carry the UPS input current.
1.2 EMC
WARNING:
This is a product for commercial and industrial application in the second environment - installation restrictions or
additional measures may be needed to prevent disturbances.
1.3 Installation Information
WARNING:
• Installation must be performed by qualified personnel only.
• The cabinets must be installed on a level floor suitable for computer or electronic equipment.
• The UPS cabinet is heavy. If unloading instructions are not closely followed, cabinet may cause serious
injury.
• Do not tilt the cabinets more than 10 degree.
• Before applying electrical power to the UPS, make sure the Ground conductor is properly installed.
• Installation and Wiring must be performed in accordance with the local electrical laws and regulations.
• The disconnection device should be chosen based on the input current.
1.4 Maintenance
• Only qualified service personnel should perform the battery installation.
• The following PRECAUTIONS should be observed:
1.
Remove watches, rings, or other metal objects.Use tools with insulated handles.
2.
Wear rubber gloves and boots.
3.
Do not lay tools or metal parts on top of batteries or battery cabinets.