Parallel Ups Installation; Battery Pack Installation - PowerWalker VFI 10K CPH Manual

UPS's maximum input current. Otherwise the receptacle may be burned and destroyed.
2) Switch off the mains switch in the building before installation.
3) Turn off all the connected devices before connecting to the UPS.
4) Prepare wires based on the following table:
Input Output
12 AWG 12 AWG
NOTE 1: The cable for 10K should be able to withstand over 30A current. It is recommended to use 12AWG
or thicker wire for safety and efficiency.
NOTE 2: The selections for color of wires should be followed by the local electrical laws and regulations.
Warning:
● For external battery pack, make sure a DC breaker or other protection device between UPS and external
battery pack is installed. 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 highly attention to the rated battery voltage marked on the rear panel. If you want to change the
numbers of the battery pack, please make sure you modify the setting simultaneously. The connection with
wrong battery voltage may cause permanent damage of the UPS. Make sure the voltage of the battery pack is
correct.
● Pay highly attention to the polarity marking on external battery connector and make sure the correct battery
polarity is connected. Wrong connection may cause permanent damage of the UPS.
● Make sure the protective earth ground wiring is correct. The wire current spec, color, position, connection
and conductance reliability should be checked carefully.
● Make sure the utility input & output wiring is correct. The wire current spec, color, position, connection and
conductance reliability should be checked carefully. Make sure the L/N site is correct, not reverse and
short-circuited.

2-5. Parallel UPS Installation

For parallel UPS system installation, please follow Section 2-3-2 Rack Installation to install required UPS modules
into 19" rack or rack enclosure first. Then, connect the parallel busbars (with black sleeve), parallel cable and
current sharing cable on the connector box of the top two UPSs as below chart. Apply the same connection way if
more parallel modules are required.
Parallel cable
Current sharing cable
Parallel port
Current sharing port
NOTE: For the detailed connection for parallel busbars in each terminal, please refer to the terminal
configurations on 2-2.

2-6. Battery Pack Installation

There are three types of battery pack. Please refer to the following configuration for each UPS model.
Battery Ground
12 AWG 12 AWG
9
Parallel busbars
Input/ Output terminal
Battery terminal