Vertiv I Liebert Air Cooled Condenser I User Manual 12
4. The phase sequence of three-phase AC input (L1, L2, L3) must be correct.
Otherwise, the fan speed controller will generate the phase loss alarm, and ther
e
will be no AC output.
5. For dual circuit condenser (such as LDF42, LDF52, LDF62, LDF70, LDF76 and
LDF85), the four condenser start/stop signal cables should be paralleled at the
terminal block of indoor unit before connection; for single circuit condenser, the
two condenser start/stop signal cables can be connected directly.
Charging refrigerant and adding cooling
oil
R
efer to Installing Unit Pipes in Liebert LSF Air Conditioner User Manual for charging
refrigerant and adding cooling oil.
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