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Operating Instructions
75
10.0 OPERATING INSTRUCTIONS
After the initial equipment start-up, the following operating guidelines can be used for standard equip-
ment operation. These guidelines should be reviewed for any special equipment modifications, special
site conditions or company policies that may require changes to the standard equipment operation.
All programmable functions are preset at the factory to enable the unit to be brought up without the
need to enter all selectable parameters.
The LCD touch screen is discussed in more detail in 13.0 - Touch Screen Display.
See Figures 23 through 36 for circuit breaker locations.
10.1 Normal System Turn-On
1. Depending on the type of distribution used:
• If equipped with output breaker CB8, open CB8.
• If equipped with output inline panelboards, open panelboard main breakers CB8 and CB9
and, if supplied, CB10 and CB11.
• If optional subfeed breakers are supplied, open subfeed breakers CB12 and CB13.
See Figures 3 through 6 for location of breakers.
a. Retract the bolts on the key interlocks for CB1 and CB2.
b. Extend the bolts on the key interlocks for CB4 and CB5, thus preventing CB4 or CB5 from
being turned ON.
2. Apply source/input power to both STS2/PDU inputs by closing CB6 and CB7.
The touch screen control panel should become active and operate properly when at least one of the
inputs is energized.
3. Verify that nominal input voltages are applied to both inputs (Source 1 and Source 2).
The input voltages, selected preferred source, breaker and switch status and alarms are indicated
on the Mimic screen.
Figure 59 STS2/PDU touch screen display
!
CAUTION
Before unit is placed into service for the first time, after equipment relocation or after the
equipment has been de-energized for an extended period, a thorough equipment inspection
and supervised start-up by qualified personnel are strongly recommended. Contact your local
Liebert representative or Liebert Global Services at 1-800-543-2378 to arrange for equipment
inspection and start-up.
Mimic
Event display
Event controls
Sources
Static
Transfer
Switch