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This manual contains important instructions. Please read and follow all instructions carefully during installation and operation of the 
unit. Read this manual thoroughly before attempting to unpack, install, or operate the UPS. 
 
CAUTION! The UPS must be connected to a grounded AC 
power outlet with fuse or circuit breaker protection. DO NOT 
plug the UPS into an outlet that is not grounded. If you need to 
power-drain this equipment, turn off and unplug the unit. 
CAUTION! The battery can power hazardous components 
inside the unit, even when the AC input power is disconnected. 
CAUTION! The UPS should be placed near the connected 
equipment and easily accessible. 
CAUTION! To prevent the risk of fire or electric shock, install 
in a temperature and humidity controlled indoor area, free of 
conductive contaminants. (Please see specifications for 
acceptable temperature and humidity range). 
CAUTION! (No User Serviceable Parts): Risk of electric 
shock, do not remove cover. No user serviceable parts inside. 
Refer servicing to qualified service personnel. 
CAUTION! (Non-Isolated Battery Supply): Risk of electric 
shock, battery circuit is not isolated from AC power source; 
hazardous voltage may exist between battery terminals and 
ground. Test before touching. 
CAUTION! To reduce the risk of fire, connect the UPS to a 
branch circuit with 10 amperes (OLS1000 / OLS1500) / 16 
amperes (OLS2000/ OLS3000) maximum over-current 
protection in accordance to CE requirement. 
CAUTION! The AC outlet where the UPS is connected should 
be close to the unit and easily accessible. 
CAUTION! Please use only VDE-tested, CE-marked mains 
cable, (e.g. the mains cable of your equipment), to connect the 
UPS to the AC outlet. 
CAUTION! Please use only VDE-tested, CE-marked power 
cables to connect any equipment to the UPS. 
CAUTION! When installing the equipment, ensure that the 
sum of the leakage current of the UPS and the connected 
equipment does not exceed 3.5mA. 
CAUTION! The OLS1000 / OLS1500 / OLS2000 / OLS3000 / 
Battery module models are only qualified maintenance 
personnel may carry out installations. 
CAUTION! Do not unplug the unit from AC Power during 
operation, as this will invalidate the protective ground 
insulation. 
CAUTION! To avoid electric shock, turn off and unplug the 
unit before installing the input/output power cord with a ground 
wire. Connect the ground wire prior to connecting the line 
wires! 
CAUTION! Do not use an improper size power cord as it may 
cause damage to your equipment and cause fire hazards. 
CAUTION! Wiring must be done by qualified personnel. 
CAUTION! DO NOT USE FOR MEDICAL OR LIFE 
SUPPORT EQUIPMENT! Under no circumstances this unit 
should be used for medical applications involving life support 
equipment and/or patient care. 
CAUTION! DO NOT USE WITH OR NEAR AQUARIUMS! 
To reduce the risk of fire, do not use with or near aquariums. 
Condensation from the aquarium can come in contact with 
metal electrical contacts and cause the machine to short out. 
CAUTION! Do not dispose of batteries in fire as the battery 
may explode. 
CAUTION! Do not open or mutilate the battery, released 
electrolyte is harmful to the skin and eyes. 
CAUTION! A battery can present a risk of electric shock and 
high short circuit current. The following precaution should be 
observed when working on batteries 
1. Remove watches, rings or other metal objects. 
2. Use tools with insulated handles. 
CAUTION! The unit has a dangerous amount of voltage. 
When the UPS indicators is on, the units may continue to 
supply power thus the unit’s outlets may have a dangerous 
amount of voltage even when it’s not plugged in to the wall 
outlet. 
CAUTION! Make sure everything is turned off and 
disconnected completely before conducting any maintenance, 
repairs or shipment. 
CAUTION! Connect the Protection Earth (PE) safety 
conductor before any other cables are connected. 
WARNING! (Fuses): To reduce the risk of fire, replace only 
with the same type and rating of fuse. 
DO NOT INSTALL THE UPS WHERE IT WOULD BE 
EXPOSED TO DIRECT SUNLIGHT OR NEAR A STRONG 
HEAT SOURCE! 
DO NOT BLOCK OFF VENTILATION OPENINGS AROUND 
THE HOUSING! 
DO NOT CONNECT DOMESTIC APPLIANCES SUCH AS 
HAIR DRYERS TO UPS OUTPUT SOCKETS! 
SERVICING OF BATTERIES SHOULD BE PERFORMED OR 
SUPERVISED BY PERSONNEL KNOWLEDGE OF 
BATTERIES AND THE REQUIRED PRECAUTIONS. KEEP 
UNAUTHORIZED PERSONNEL AWAY FROM BATTERIES!