Usage Warnings - Delta Modulon DPH Series User Manual

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Usage Warnings

Before installation, wiring and working on the UPS's internal circuits, please completely
The UPS is specifically designed for information technology equipment and used to
power computers, servers, and associated peripheral devices. If you want to connect
any capacitive loads or non-linear loads (that have serious surge current) to the UPS,
it needs to be de-rated according to on-site applications. For such special applications,
please contact Delta service personnel for the accurate UPS sizing. The UPS is not
suitable for connecting with any asymmetrical loads.
The external slits and openings in the UPS are provided for ventilation. To ensure reli-
able operation of the UPS and to protect the UPS from overheating, these slits and
openings must not be blocked or covered. Do not insert any object into the slits and
openings that may hinder ventilation.
Before applying electrical power to the UPS, you must allow the UPS to adjust to room
temperature (20°C~25°C) for at least one hour to avoid moisture condensing inside the
UPS.
Do not put beverages on the UPS, external battery cabinet or any other accessory as-
sociated with the UPS.
Do not open or remove the covers or panels of the UPS to avoid high voltage electric
shock. Only authorized Delta engineers or service personnel can do so for installation
or maintenance. If you want to open or remove the covers or panels, do it only under
the supervision of authorized Delta engineers or service personnel.
It is strictly forbidden to connect the UPS to any regenerative loads.
The risk of dangerous high voltage is possible when batteries are still connected to the
UPS even though the UPS is disconnected from the power sources. Before mainte-
Do not open or damage the battery or batteries. The released electrolyte is harmful to
the skin and eyes and may be toxic.
The UPS is electronic equipment that runs 24 hours continuously. To ensure its normal
lifetime, regular maintenance of the UPS and batteries is of vital importance and neces-
sary.
Some components like batteries, power capacitors, and fans will become worn-out due
to long-term usage, and this will increase the risk of UPS failure. To replace and main-
tain the components, please contact Delta service personnel.
A battery can present a risk of electric shock and high short-circuit current. The follow-
ing precautions should be observed before replacement of batteries:
Modulon DPH Series
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