Installation Environment And Safety Precaution - Delta NT-15K User Manual

4.4 Installation Environment and Safety Precaution

To ensure UPS normal operation, prolong UPS lifetime, and protect UPS from
disorder and malfunction, the user should select an optimal installation location and
environment according to the following safety instructions.
1. Install the UPS indoors. Do not place it outdoors.
loading capacity to bear the weight of the UPS.
3. The UPS and battery cabinet should be located on enough space for
maintenance and good ventilation.
Rear panel should be kept away from wall at least 50 cm.
The front of the UPS should be kept at least 100cm.
The top of the UPS should be kept at least 50cm.
4. For optimum performance and reliability to prolong UPS lifetime, the temperature
should be kept below 25°C, and humidity must be maintained within a range of
0 to 95% (non-condensing).
5. Check if the length and diameter of wires conform to the safety standard or not.
be preferably constructed by noncombustible materials. The room should be
room should be limited to a minimum number of operation and maintenance
personnel only. The doors should be kept locked and the keys should be
controlled to authorized personnel only.
8. If the UPS is supplied by a power source whose neutral is grounded, the
backfeed protective device installed as UPS input protection must be a 3-pole
type. If the UPS is supplied by a power source whose neutral is not grounded,
the backfeed protective device installed as UPS input protection must be a
4-pole type. The recommended electrical rating of the backfeed protective
device is as follows.
UPS Capacity (VA)
Main Input
Reserve Input
Ultron NT Series
15K 30K
690V/ 30A 690V/ 75A
690V/ 50A 690V/ 100A 690V/ 200A 690V/ 350A
25
60K 100K
690V/ 125A 690V/ 175A