User Precautions; Environment - Eaton 93PR Series User And Installation Manual

1.3

User Precautions

The only user operations permitted are:
• Start up and shut down of the UPS, excluding the commissioning start up.
• Add or replace the hot-swappable UPM(s).
• Use of the LCD control panel and Maintenance Bypass Switch (MBS).
• Use of optional connectivity modules and their software.
The user must follow the precautions and only perform the described operations. Any deviation from the
instructions could be dangerous to the user or cause accidental load loss.
The user is not permitted to open any screws excluding connectivity plates and the MBS locking plate. Failure to
recognise the electrical hazards could prove fatal.
• The 93PR models are available as C2 UPS product which can be placed both in a residential and commercial/
industrial environment. When included in a residential environment, this product may cause radio
interference, in which case the user may be required to take additional measures.
• By standard, the 93PR models are category C3 UPS products, meant for all commercial and industrial
establishments.
1.4

Environment

The UPS must be installed according to the recommendations in this manual. Under no circumstances
should the UPS be installed in an airtight room, in the presence of flammable gases, or in an environment
exceeding the specifications.
Excessive amount of dust in the operating environment of the UPS may cause damage or lead to
malfunction. The UPS should always be protected from the outside weather and sunshine. In order to
maximize internal battery service life time, the recommended operating temperature range is from +20 to
+25 ºC.
• Hydrogen and oxygen gases are emitted from batteries into the surrounding atmosphere during charge, float
charge, heavy discharge, and overcharge. Explosive gas mixture may be created if the hydrogen concentration
exceeds 4 % by volume in air. Necessary air flow rate for ventilation of UPS location must be ensured.
• As an example, for 93PR 25-75 kW UPS, a minimum air flow is 5 m³/ hour for the room where one 93PR UPS
with internal VRLA batteries is placed. If more than one UPS with internal VRLA batteries are located in the
same room, ventilation air flow must be dimensioned accordingly. If external flooded cell batteries are used
in same location, ventilation air flow must be recalculated and dimensioned accordingly.
3
WARNING
CAUTION
WARNING
25-75 kW
User's and Installation Guide