2
Do not open or disassemble the unit, warranty may be voided.
The DC and AC side connections should be firm and tight.
Grounding
：
Reliable grounding of rack-mounted equipment should be maintained.
Do not drop a metal tool on the battery. The resulting sparks or short-circuit on the battery or on
the other electrical part may cause an explosion.
Wiring
：
Adequate input power must be supplied to the unit for proper use; correct wiring sizes
must be ensured.
Do not operate the unit close to combustible gas or open fire.
Temperature
：
The unit should be operated in an ambient temperature range of -20 to 40°C or else
the output efficiency may be affected. Air flow to the unit must not be restricted.
In case of fire, you must use the fire extinguisher which is appropriate for electrical equipment.
Short circuiting or reversing polarity will lead to serious damage to batteries, unit and the wiring.
Fuses between the batteries and the unit cannot prevent damage caused by reversed polarity and
the warranty will be void.
Do not work on unit or system if it is still connected to a power source. Only allow changes in your
electrical system to be carried out by qualified electricians.
Check the wiring and connections at least once a year. Defects such as loose connections, burned
cables etc. must be corrected immediately.
Do not touch the equipment when wet or if your hands are clammy.
CAUTION
The cabinet of the unit must not be opened. There are no serviceable parts inside the
cabinet. Only qualified, authorized and trained electrician installers are authorized to
open the connection compartment.
1-4. Warning regarding the use of batteries
Excessive battery discharge and / or high charging voltage can cause serious damage to batteries.
Do not exceed the recommended limits of discharge level of your batteries. Avoid short circuiting
batteries, as this may result in explosion and fire hazard. Installation of the batteries and adjustments
of the unit should only be undertaken by authorized personnel!
