NORAC UC4.5-BC-HD4 Part 1 - Manual (Page 24)

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7 Electrical Installation
Ensure the UC4.5 Control Panel is OFF for the remainder of the installation
(Bottom of switch pressed IN). Use caution when handling the 12 V power line
of the sprayer wiring.
Depending on the electronics used on the sprayer (DAH or DAH09), either the
NORAC part 44658-51 or 44658-78 will be required for this installation. For
installations using 44658-51, proceed to section 7.1. For installations using the
44658-78 proceed to section 7.2.
Figure 19: HARDI DAH on left (use 44658-51) vs. DAH09 interface on right (use 44658-78)