Effective July 2007
Verify the phase to phase line voltages of both the
normal and emergency power sources are the same
and that they match rated voltage as indicated on
the ATSBI equipment ratings label.
SEVERE EQUIPMENT DAMAGE CAN RESULT IF
UNIT IS NOT APPLIED TO PROPER VOLTAGE.
DO NOT ENERGIZE EQUIPMENT IS SUPPLY
VOLTAGES DO NOT MATCH EQUIPMENT
RATINGS LABEL. CONTACT THE FACTORY FOR
FIELD VOLTAGE RATING MODIFICATION
INSTRUCTIONS.
FUNCTIONAL TESTING
Following the operational instructions label on the
enclosure front, proceed to place the equipment in
the Normal Bypass mode. Set the enclosure
mounted auto/test switch to the auto position.
YOU ARE READY TO ENERGIZE EQUIPMENT.
VOLTAGES WILL EXIST WITHIN THE ENCLOSURE
CAPABLE OF CAUSING SEVERE PERSONAL
INJURY OR DEATH.
USE EXTREME CAUTION TO AVOID CONTACT
WITH ENERGIZED EQUIPMENT.
ENERGIZING NORMAL SOURCE
With the main switch in the Normal Bypass position,
apply normal source power to the equipment by
closing the normal upstream breaker or switch
supplying the ATSBI switch on the normal side.
NOTE: The load terminals of the unit will now be
energized. If it is undesirable to energize connected
load equipment during the functional tests,
measures should be taken to isolate such loads by
opening an appropriate downstream breakers.
The ATS power panel may cycle to close to the
normal position if not already in normal. This DOES
NOT indicate a presence of voltage on the ATS
power panel since the ATS logic panel senses on
the line side of the Bypass switch.
Utilizing a voltmetre measure phase-to-phase-to-
neutral voltages across the normal bypass line
terminals to ensure normal voltage is correct.
CONTACT WITH ENERGIZED COMPONENTS CAN
CAUSE ELECTRICAL SHOCK CAPABLE OF
PRODUCING SEVERE PERSONAL INJURY OR
DEATH. USE EXTREME CAUTION TO AVOID
CONTACT WITH ENERGIZED COMPONENTS
WHEN USING A METER FOR VOLTAGE CHECKS.
The following status indicator lights mounted on
device panels of both the Bypass (upper) enclosure
panel and the ATS (lower) enclosure door should be
lit.
1.
Normal Bypass Energized
2. Transfer Switch Isolated
3. Normal
Source
Available
4. Load Energized
5. Normal Position Energized
Refer to status indicator lights section for a
complete operational description of all supplied pilot
lights.
ENERGIZING EMERGENCY SOURCE
Following the operational instructions label on the
enclosure front, proceed to place the equipment in
the Emergency Bypass Mode by opening the
Normal Bypass Switch and closing the Emergency
Bypass Switch.
With the switch in the Emergency Bypass position,
manually start the engine generator (if applicable) at
the set utilizing the generator selector switch. Apply
Emergency source power to the equipment by
closing the generator breaker ahead of the ATSBI
Switch on the Emergency side.
NOTE: The ATS Power Panel should remain
connected (closed) on the Normal Source.
9
DANGER
DANGER
CAUTION
I.L. 16913A
