Eaton 9EHD-33-40/20, User'S Installation And Operation Manual

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4 3 external Battery Cabinet Installation
WARNING
• In the event of malfunction, the battery cabinet chassis or battery cabinet frames may become live.
• Special care should be taken when working with the battery cabinet associated with the
equipment. Ensure the battery number is suited to the setting of the battery charging voltage
before installing the battery. When the battery cabinet is connected the overall voltage exceeds
nominal voltage. It is very important to ensure that the batteries are installed separately, in a
dedicated battery cabinet.
• Battery back-up time do not exceed one hour, if the battery setting shall be exceeded one hour,
consult to the professional personnel.
Before connecting the external battery, please read the notice and warning label on the battery cabinet.
Connect the battery cabinet(s) with cables sized according to cable cross section and protective device
specification to ter (positive pole) and - (negative pole).
Connect the battery cabinet as follows:
Turn off the UPS.
Check all the external battery breakers are open.
Connect PE first.
CAUTION
• The most common battery type used in UPS installations is the valve regulated battery. Valve
regulated cells are not sealed. The amount of gas given off is less than for flooded cells, but when
planning the battery installation, allowance must be made for adequate ventilation and heat
dissipation. Valve regulated cells are not completely maintenace- free. They must be kept clean and
their connections checked periodically to ensure they are tight, and that there is no evidence of
corrosion. It is inevitable that the batteries will lose charge during transportation and storage; before
attempting to carry out an autonomy test, ensure that the batteries are fully charged as this may take
several hours. Cell performance typically improves after a few discharge/recharge cycles.
• The requirements of the EC directives are satisfied when battery cabinet are used with original
accessories. If alternative batteries are used, you must ensure that the appli-cable EC directives are
met and declare conformity.
WARNING
ENSURE CORRECT POLARITY!
Refer to instructions provided with the battery cabinet or by vendor.
Eaton 9EHD UPS (20-40 kVA, 380/400/415V) Installation and Operation Manual 26