Liebert Static Transfer Switch 2, Installation, Operation & Maintenance Manual

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1
I
MPORTANT
S
AFETY
I
NSTRUCTIONS
Save these instructions
This manual contains important instructions that should be followed during the installation and
maintenance of the Liebert Static Transfer Switch 2 (STS2).
!
WARNING
THE UNIT IS SUPPLIED BY MORE THAN ONE POWER SOURCE.
THE UNIT CONTAINS HAZARDOUS VOLTAGES IF ANY OF THE
INPUT SOURCES ARE ON, EVEN WHEN THE UNIT IS IN
BYPASS. TO ISOLATE THE UNIT, TURN OFF AND LOCK OUT
ALL INPUT POWER SOURCES.
VERIFY THAT ALL INPUT POWER SOURCES ARE DE-
ENERGIZED AND LOCKED OUT BEFORE MAKING
CONNECTIONS INSIDE UNIT.
LETHAL VOLTAGES EXIST INSIDE THE UNIT DURING
NORMAL OPERATION. ONLY QUALIFIED SERVICE
PERSONNEL SHOULD PERFORM MAINTENANCE ON THE
STATIC SWITCH.
NOTE
Read the entire manual before installing or operating the system. Adhere to
all operating instructions and warnings on the unit and in this manual.
Liebert Corporation neither recommends nor knowingly sells this product
for use with life support or other FDA-designated “critical” devices.
The Static Transfer Switch is suitable for indoor use only. Protect the unit
from excessive moisture and install the unit in an area free from flammable
liquids, gases, or corrosive substances.
The unit is designed to operate from solidly grounded AC power sources
only. Provide input over-current protection in accordance with the unit
ratings. Wire and ground the unit according to national and local electrical
safety codes. All wiring should be installed by a qualified electrician.
Before unit is placed into service for the first time, after equipment
relocation, or after the unit has been de-energized for an extended period of
time, a thorough equipment inspection and supervised start-up by qualified
service personnel are strongly recommended.
!
CAUTION
This unit complies with the limits for a Class A digital device,
pursuant to Part 15 Subpart J of the FCC rules. These limits
provide reasonable protection against harmful interference in a
commercial environment. This unit generates, uses and radiates
radio frequency energy and, if not installed and used in
accordance with this instruction manual, may cause harmful
interference to radio communications. Operation of this unit in a
residential area may cause harmful interference that the user
must correct at his own expense.
!
WARNING
LOCATE THE CENTER OF GRAVITY SYMBOLS
AND DETERMINE THE UNIT’S WEIGHT
BEFORE HANDLING THE CABINET.