2.3. Setup the UPS for a Parallel System
If the UPS is only available for single operation, you may skip this section to the next.
Step 1. Install and wire the UPSs according to the section 2.2.
Step 2. Connect the output wires of each UPS to an output breaker.
Step 3. Connect all output breakers to a major output breaker. Then this major output
breaker will directly connect to the loads.
Step 4. E ach UPS is connected to an independent battery pack.
Note: The parallel system cannot use one battery pack. Otherwise, it will cause system permanent
failure.
Step 5. Refer to the following wiring diagram:
Wiring diagram of Parallel System for 10K/20K
ON-LINE 3P/3P
P H 9273 - PH 9293 .
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