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Powerware 9170+ User Manual

Page 36

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Electrical Installation

32

Powerware

®

9170 User's Guide

S

LTM-1344 B Uncontrolled Copy

5. Install the conduit adapters. AC input and AC output

conductors must be run through separate conduits. UPS output

circuits must be installed in dedicated conduit systems and not

shared with other electrical circuits.

6. Find the terminal strip inside the bypass switch cabinet. Using

the label on the back of the bypass switch access panel and the

proper installation wiring diagram, make the terminal strip

connections and tighten all connections as specified in Table 2

on page 27. Use copper wire that is the appropriate size for the

current draw. Figure 22 shows a sample label.

Figure 22. Bypass Switch Wiring Label

7. After installing bypass switch wiring, torque the screws holding

all input and output power conductors to the values specified

in Table 2 on page 27.

8. If your UPS has an isolated output, find the proper output

neutral-to-ground connection in the output wiring diagrams

beginning on page 44.
At the UPS terminals,

connect the neutral-to-ground

(neutral-to-earth) wire to the proper terminal before making any

other connections to the UPS

. The neutral-to-ground wire is a

green and yellow wire. One end of this wire is already

connected to the ground (earth) UPS terminal. Ground

terminations, inside the UPS rear panel, are located directly

below the line input terminals. Figure 23 shows input and

output wiring terminals inside the Powerware 9170 UPS

cabinet. Figure 36 on page 45 shows the N-G bond wire

connections.