Inspection and Startup Checklist
27
___ 14. Press the local EMERGENCY POWER OFF switch, if supplied, and verify system shutdown.
Turn the unit back on.
___ 15. Repeat
Step 14
for each remote EMERGENCY POWER OFF switch with which the system is
equipped.
3.3
Monitoring System Check-Out
Basic Indicators
___ 1. Turn ON the building power to the unit, then turn the main input breaker ON.
___ 2. Check that the local EMERGENCY POWER OFF button, if supplied, is illuminated and that
the ALARM PRESENT / SILENCE indicator is off.
Manual Restart Check
If the Liebert FPC is equipped with Manual Restart:
___ 1. Turn on building power to the FPC. Turn Main Input Breaker ON.
___ 2. Turn off all building power to FPC.
___ 3. Observe that Main Input Breaker automatically trips open upon power loss.
___ 4. Restore building power to the FPC and return Main Input Breaker to ON.
Power Monitor Panel
If the Liebert FPC is equipped with a Power Monitor Panel:
___ 1. Turn ON the FPC.
___ 2. Ensure that the voltage values indicated by the Monitor Panel correspond to the voltage
values measured at the input and output circuit breaker (
Steps 10
and
13
in
3.2 - Startup
).
Centralized Monitor
If the Liebert FPC is connected to a Centralized Monitoring System:
___ 1. Turn ON the FPC and the Centralized Monitoring System.
___ 2. Verify proper communication to the monitor system operation.
Control Voltage
___ 1. Obtain access to the low voltage terminals in the Low-Voltage Junction Box (if used), or in the
low-voltage control section inside unit.
___ 2. With the FPC ON, measure and record the DC control voltage on terminals 1 (+) and 3 (com).
___ 3. Control Voltage = ____________________ (Voltage should be between 16 and 23VDC).
NOTE
The Liebert FPC transformer has input voltage taps for each input phase. The taps are
arranged in 2-1/2% or 5% intervals ranging from -10% to nominal to +5%. This permits the
transformer to provide the proper output voltage for a range of input voltages. Should it be
necessary, the tap arrangement may be changed to match the input voltage:
• Open main input circuit breaker.
• Select tap arrangement to match input voltage. (Refer to transformer nameplate for tap
information.)
• Secure each line to its proper tap.
• Repeat
Steps 11
to
13
.
!
CAUTION
The Remote Emergency Power Off switch may shut down more equipment or systems than
just the Liebert FPC.