Emerson FPC Monitoring System Check-Out, Basic Indicators, Manual Restart Check, Control Voltage

Inspection and Startup Checklist

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.

___ 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.

! CAUTION

The Remote Emergency Power Off switch may shut down more equipment or systems than just the Liebert FPC.

3.3Monitoring 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).

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