CAUTION: Risk of exposure to harmful noise levels. Can cause hearing injury or loss.
Depending on the installation and operating conditions, a sound pressure level greater than
70 dB(A) may arise. Take appropriate technical safety measures. Operating personnel must
wear appropriate, OSHA-approved PPE and observe all appropriate hearing-protection safety
requirements.
CAUTION: Risk of contact with hot surfaces. Can cause injury. The compressor, refrigerant
discharge lines, fan motor, and some electrical components are extremely hot during unit
operation. Allow sufficient time for them to cool to a touch-safe temperature before working
within the unit cabinet. Use extreme caution and wear appropriate, OSHA-approved PPE when
working on or near hot components.
NOTICE
Risk of improper power-supply connection. Can cause equipment damage and loss of warranty
coverage.
Prior to connecting any equipment to a main or alternate power source (for example: back-up
generator systems) for start-up, commissioning, testing, or normal operation, ensure that these
sources are correctly adjusted to the nameplate voltage and frequency of all equipment to be
connected. In general, power-source voltages should be stabilized and regulated to within
±10% of the load nameplate nominal voltage. Also, ensure that no three-phase sources are
single-phased at any time.
NOTE: Do not assume that the fan blades will not start to spin. If the motor is in a fault condition, it will
safely shut down. Once the fault condition is cleared, there are certain conditions in which the motor
will automatically resume operation.
EC-fan Fault Conditions
Fault Condition
Reset Trigger
Description
Phase Failure
Automatic
One phase is missing. In this case the motor will come to a stop and then automatically restart
when all phases are present.
Locked/Blocked
Rotor
Automatic
The rotor is blocked. Once the locking mechanism has been removed, the motor will
automatically restart.
Hall Effect
Sensor Error
Manual
(Mains/Software)
The Hall Effect Sensor is used to monitor fan speed. If there is a hall sensor communication
failure with the electronics, the motor will stop. In this case there has to be a manual restart
(either with the mains power or software).
Motor Over
Temperature
Manual
(Mains/Software)
The motor will stop in the event there is a motor over temperature condition. In this case
there has to be a manual restart (either with the mains power or software).
Electronics Over
Temperature
Manual
(Mains/Software)
The motor will stop in the event there is an electronics over temperature condition. In this
case there has to be a manual restart (either with the mains power or software).
Line
Under-Voltage
Automatic
Once the line voltage returns within permitted operating range, the fan will automatically
restart.
Table 8.2 EC-fan Fault Conditions
Vertiv | Liebert® DSE060™ Installer/User Guide
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Содержание Liebert DSE060
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