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should have leakage current protective function if necessary.
6)
Put the terminal block cover back at the rear panel of the UPS.
Warning: (Only for standard model)
● Make sure the UPS is off before the installation. The UPS should not be turned on during wiring
connection.
● Do not attempt to modify the standard model into the long-run model. In particular, do not try to
connect the standard internal battery to the external battery. The battery type and voltage may be
different, risk of electric shock or fire may occurred!
Warning: (Only for long-run model)
● Make sure a DC breaker or other protective device between UPS and the external battery pack is
installed for added safety. If not, please install it carefully. Switch off the battery breaker before
installation.
NOTE: Set the battery pack breaker in "OFF" position and then install the battery pack.
● Pay special attention to the rated battery voltage marked on the rear panel. If you want to change the
numbers of the battery in a chain, make sure you modify the UPS setting accordingly. Connection with
wrong battery voltage may cause irreversible damage of the UPS.
● Pay special attention to the polarity marking on external battery terminal block. Connection with wrong
battery voltage may cause irreversible damage of the UPS.
● Make sure the protective grounding/earthing wiring is adequate. The current spec, color, position,
connection and conductance reliability of the wire should be verified.
● Make sure the utility input & output wiring is rated correctly. The current spec, color, position, connection
and conductance reliability of the wire should be verified. Make sure the L/N side is correct, not reverse
or short-circuited.
2-4. UPS Installation for Parallel System
If the UPS is only for single operation, you may skip this section.
1) Install and wired the UPS according to the section 2-3.
2) Connect the output wires of each UPS to an output breaker.
3) Connect all output breakers to a centralize breaker. This centralize output breaker will then connect
directly to the loads.
4) Either common battery packs or independent battery packs for each UPS are allowed.
5) Refer to the following wiring diagram:
7
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