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ELECTRICAL
Recommended Electrical Entry Location
It is recommended by the manufacturer that electrical service be brought into the unit through the end wall, as shown below. There are three
penetrations into the cabinet that are required.
Figure 35: Electrical Entry in the Split Rooftop Units.
Control Box Wiring Connections
It is recommended by the Manufacturer that electrical service be brought into the unit through the end wall, as shown below. There are three
penetrations into the cabinet that are required. See Figure below.
Figure 36: Control box in the Split Rooftop Unit.
Main PCB
SUB PCB(HR UNIT)
SUB PCB(Main PCB)
Transformer
208-230V → 24V
T/B-Economizer
T/B-Motor
T/B-Communication/ Remote
T/B-Main Power
50
Due to our policy of continuous product innovation, some specifications may change without notification.
©LG Electronics U.S.A., Inc., Englewood Cliffs, NJ. All rights reserved. "LG" is a registered trademark of LG Corp.
HR UNIT PCB
Dry Contact
208-230V → 24V
Relay PCB
T/B-DO (Digital Output)
Economizer(Honey Well)
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