Input Isolation Transformer Installation
6.Verify that the input circuit breaker is in the OFF position.
7.Remove the UPS wiring access cover and retain.
8.Remove the input isolation transformer wiring cover and retain.
| ON | |
UPS Wiring | OFF | |
Access Cover |
| |
| Battery Circuit Breaker | |
Conduit Landing |
| |
| ON | |
Input Isolation |
| |
Transformer | OFF | |
Wiring Cover | ||
| ||
| Input Circuit Breaker |
Figure 8. UPS with Input Isolation Transformer Rear View
9.If you are also installing an optional Maintenance Bypass Module or Power Distribution Module, proceed to Step 15 on page 26; otherwise, continue to Step 10.
10.On the input isolation transformer, punch the two pilot holes in the conduit landing for the input and output conduit using a Greenlee® punch or similar device (see Figure 9).
11.Hardwire the input, output, and ground terminations for the input isolation transformer.
See Table 4 for specifications and Figure 9 for a detailed view of the input isolation transformer terminal block.
Powerware® 9155 UPS | 23 |