Xtreme Power Conversion Corporaon
NXTi 3P-1P User’s Manual
Page 7
Uninterrupble Power Supply
NOTE 2: There are two kinds of outputs: output terminal/outlets and programmable terminal. Please con-
nect non-crical devices to the programmable terminal and crical devices to the output terminal/outlets.
During power failure, you may extend the backup me to crical devices by seng shorter backup me
for non-crical devices.
NOTE 3: Please install the output breaker between the output terminal and the load, and the breaker
should be qualied with leakage current protecve funcon if necessary.
6. Insert the EPO plug into the EPO slot on the rear panel.
7. Put the terminal block cover back to the rear panel of the UPS.
Warning: (Only for standard model)
• Make sure the UPS is not turned on before installaon. The UPS should not be turned on during wiring
connecon.
• Do not try to modify the standard model to the long-run model. Parcularly, do not try to connect the
standard internal baery to the external baery. The baery type and voltage may be dierent. If you con-
nect them together, it maybe causes the hazard of electric shock or re!
Warning: (Only for long-run model)
Make sure a DC breaker or other protecon device between UPS and external baery pack is installed. If not,
please install it carefully. Switch o the baery breaker before installaon.
NOTE: Set the baery pack breaker in “OFF” posion and then install the baery pack.
• Pay highly aenon to the rated baery voltage marked on the rear panel. If you want to change the num-
bers of the baery pack, please make sure you modify the seng simultaneously. The connecon with
wrong baery voltage may cause permanent damage of the UPS. Make sure the voltage of the baery
pack is correct
• Pay highly aenon to the polarity marking on external baery terminal block, and make sure the correct
baery polarity is connected. Wrong connecon may cause permanent damage of the UPS.
• Make sure the protecve earth ground wiring is correct. The wire current spec, color, posion, connecon
and conductance reliability should be checked carefully.
• Make sure the ulity input & output wiring is correct. The wire current spec, color, posion, connecon
and conductance reliability should be checked carefully. Make sure the L/N site is correct, not reverse and
short-circuited.
UPS Installaon for Parallel System
If the UPS is only available for single operaon, you may skip this secon to the next.
1. Install and wires the UPSs according to the Single UPS Installaon secon.
2. Connect the output wires of each UPS to an output breaker.
3. Connect all output breakers to a major output breaker. Then this major output breaker will directly con-
nect to the loads.
4. Each UPS is connected to an independent baery pack.
NOTE: The parallel system cannot use one baery pack. Otherwise, it will cause system permanent failure.
5. Refer to the following wiring diagram:
