Vertiv Liebert RX, User Manual

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Vertiv | Liebert
®
RX
™
Remote Distribution Cabinet User Manual | 24
3.2 Startup
___ 1. Make certain that all circuit breakers are in the Off position and that power to the unit is locked out.
___ 2. Turn On the building power to the unit. Check the phase rotation at the panelboard main breaker or
panelboard input lugs if no panelboard main breaker is supplied. Phase rotation should be A, B, C, as
indicated.
___ 3. Check and record the input voltages at the panelboard main breaker or panelboard input lugs if no
panelboard main breaker is supplied:
___ 4. Turn Off and lock out the building power to the unit.
___ 5. Replace the junction box cover.
___ 6. Verify proper input power connections to unit, including equipment grounding conductor.
___ 7. Turn On the building input power to the unit.
___ 8. Check the phase rotation at the panelboard main breaker. Phase rotation should be A, B, C, left to right.
___ 9. Check and record the input voltage at the panelboard main breaker. Measured voltages should
correspond to the unit’s nameplate input voltage.
If output voltage is incorrect, check for wiring errors or incorrect input voltage. Contact Vertiv at 1-800-543-
2378 in the USA or the local factory representative for assistance.
___ 10. Turn On the panelboard main breaker.
3.3 Monitoring System Check Out
If the unit is equipped with Current Plus Monitoring or Liebert LDMF
™
:
1. Turn the unit On.
2. Ensure that the LCD is On. The Monitor Panel displays output and neutral currents for the panelboard
(load must be applied to get an accurate reading).
WARNING
Risk of electric shock. Can cause personal injury or death.
Hazardous voltages are present in the equipment throughout the startup procedure. This
unit has several circuits that are energized with high AC voltage.
Only properly trained and qualified personnel wearing appropriate safety headgear, gloves,
shoes and glasses should be involved in starting this unit.
When performing any procedure
with any part of the equipment under power, personnel and test equipment should be
standing on rubber mats.
In case of fire involving electrical equipment, use only carbon dioxide fire extinguishers or
those approved for use in fighting electrical fires.
One person should never work alone, even if all power is disconnected from the equipment.
A second person should be standing by to assist and to summon help in case of an
accident.
Input 1 Input 2 Input 3 Input 4
Volts, phase A to phase B =
Volts, phase B to phase C =
Volts, phase C to phase A =
Panelboard 1
Volts, phase A to phase B =
Volts, phase B to phase C =
Volts, phase C to phase A =