LG MULTI F LMU183HV - Page 65

65
Electrical System Installation
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Figure 84: Multi F LMU243HV System Power Wiring and Communications Cable.
ELECTRICAL
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Outdoor Unit
3(A) 3(C)3(B)
Outdoor Unit Terminal Block
L1
L1
L2
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Power Supply
Main Switch
Circuit Breaker
Fuse
Three-wire Power Wiring
(Including Ground)
COMMUNICATIONS CABLE
POWER WIRING
1(L1) 2(L2)
Indoor Unit Terminal Block
Unit A Unit B Unit C
3
1(L1) 2(L2) 3 1(L1) 2(L2) 3
Indoor Unit Terminal Block Indoor Unit Terminal Block
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G
G
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(L)L1 N(L2)
L(L1)
N(L2)
L(L1)
N(L2)
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motor current leakage.
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• Maintain polarity throughout the communication network. The system will malfunction if not properly wired.
NOTE
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ments. Failure to install proper electrical components can result in property damage and equipment malfunction.
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ground wiring can result in property damage and equipment malfunction.
• Install a main shutoff switch or circuit breaker that interrupts all power sources simultaneously. Failure to install proper electric components
will result in property damage and equipment malfunction.