BAC DCV Series Rigging And Installation Instructions page 23

Control Panel with Variable Frequency Drive
The adiabatic pre-cooling will be activated and stopped on the basis of a pre-programmed logical combination of
the fan speed and the ambient temperature (release set-point). Default settings will not activate adiabatic pre-
cooling unless all fans are running at maximum permissible speed and the dry-to-adiabatic release set-point is
reached.
ELECTRICAL FIELD WIRING
ALL OPERATIONS DESCRIBED BELOW MUST BE PERFORMED BY A LICENSED
ELECTRICAL TECHNICIAN AND MUST COMPLY WITH LOCAL REGULATIONS.
The equipment is standard provided with a door interlocked main power switch (Q
Connect electrical power to the power switch through a 3-pole cable, with ground, of adequate cross section for the
main fuse rating.
The power tension must not fluctuate more than ±10%. The imbalance between the phases must not be
greater than ±2%.
Connect the immersion sensor to the terminal strip as indicated in the wiring diagram.
PRE-COMMISSIONING
1. With main power switch open, check all electrical connections in electrical panel to be sure that they are tight
and provide good electrical contact. Although connections were tightened at the factory, they may have
loosened enough in shipment to cause a malfunction.
START-UP
1. Turn the main power switch Q0, main fuses F0 and auxiliarycontrol circuit fuses FA1, FA2, FA3 to the "off"
position. Put theCircuit Breakers F1, F2, F3 etc. in the "off" position. Measure the mains voltage.
5 Start-up and Commissioning
5 Start-up and Commissioning
Caution
), which is factory fitted.
0
W W W . B A L T I M O R E A I R C O I L . E U
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