Furman CLASSIC Serie Guide De L'utilisateur page 6

PL-8 C OWNER'S MANUAL
ON/OFF ROCKER SWITCH:
Furman's Classic Series 15 amp capacity power switch is specifically designed to stand up to the enormous high inrush current
demands of many power amplifiers. When the top por+on of the switch is pressed flush with the panel, power is present.
EXTREME VOLTAGE SHUTDOWN (EVS) INDICATOR:
The Extreme Voltage LED Indicator is normally off. It is located to the lep of the power switch, though during normal use it will NOT be lit.
The Extreme Voltage indicator monitors a hazard common in the entertainment, remote broadcast, and AV contractor industries:
wiring faults. For example: accidental connec+on to 208VAC where 120VAC is expected, or an open series neutral from a 208 to
240VAC electrical service. The Furman EVS circuit senses voltages that are so high that opera+on would be impossible and shuts the
power down before damage can occur.
Upon ini+ally applying power to the PL‐8 C, the Extreme Voltage indicator will illuminate to a bright red if the input voltage is above
the extreme voltage cutoff. When this occurs, power will not be applied to the PL‐8 C's outlets. If the unit has been opera+ng with an
acceptable input voltage and subsequently that voltage exceeds 140V, it will shut off power to the outlets and the Extreme Voltage
LED will light.
NOTE: If the mains power is above the high cutoff voltage and has caused the EVS circuit to remove power from the PL‐8 C's outlets,
it cannot restore power without the operator manually turning the unit off, then on again. Avoid turning the unit back on without first
checking the source of the problem and changing the AC source (if necessary).
PROTECTION OK INDICATOR:
Although the Furman SMP circuit assures virtually maintenance‐free protec+on from transient voltage spikes and surges, nature has a
way of occasionally crea+ng electrical forces that are beyond the capabili+es of ANY surge suppression device to absorb without some
degree of damage (such as a direct lightning hit in an outdoor applica+on). In the rare instance that this occurs, the green "Protec+on
OK" LED indicator (located to the right of the retractable light tubes), will not illuminate. If this happens, some level of protec+on from
voltage surges will remain, but the PL‐8 C's clamping voltage ra+ng will be compromised and the unit must be returned to Furman for
service.
NOTE: Furman's Classic Series power condi+oners do not compensate for high or low AC line voltage. If you frequently move your
rack to different loca+ons, derive power from generators, use very long extension cords, travel interna+onally, or are in an area prone
to brownouts, you may benefit from the use of one of Furman's AC Voltage Regulators.
TROUBLESHOOTING
1.) Symptom: No power to the AC outlets.
Possible Cause: The circuit breaker (located on the rear panel ‐ adjacent to the AC inlet cord) has tripped due to excessive load.
Ac<on Needed: Unplug one piece of equipment from the Furman condi+oner and push the round reset tab into the circuit breaker
bezel.
2.) Symptom: No power to the AC outlets, "Protec+on OK" indicator is not lit.
Possible Cause: Either the AC outlet to which your Furman condi+oner is connected has no AC voltage present, or the protec+on
circuitry in your unit has been compromised.
Ac<on Needed: Plug the Furman condi+oner into an AC receptacle where a nominal 120 VAC is present. If the problem persists,
contact Furman for service.
3.) Symptom: Extreme Voltage (EVS) indicator lit.
Possible Cause: Input voltage is above 140V causing power to the unit's outlets to be shut down. Addi+onally, if the voltage is below
85V – 90V at turn on, the unit will not allow AC voltage to reach the outlets.
Ac<on Needed: Correct the line voltage, then turn the Furman condi+oner on. If the voltage present is below 114 VAC or above 126
VAC, consider installing a Furman voltage regulator.
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