10.4 Premium Efficiency Control Board and Interface
The Premium Efficiency Control board has a stacked-board arrangement. The human machine interface consists of three 7
segment LEDs and keys (see Figure 10.6 on the facing page).
NOTE: Indicator lights should be On to indicate signal is present. See Figure 10.5 below.
The Premium Efficiency Controls are factory configured for refrigerant type, whether or not a receiver is included, and the
indoor cooling unit. No field configuration is necessary for proper and efficient condenser operation.
Figure 10.5 Premium Efficiency Fan Control Board
Item Description
1 LED indicates signal is present when lit.
2 LED indicates signal is present when lit.
3 LED indicates signal is present when lit.
40 Proprietary and Confidential ©2024 Vertiv Group Corp. 10 Control Operation
Vertiv™ Liebert® MCV Installer/User Guide
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