Engineering Bulletin

Outdoor Unit
L1 L2 1(L1) 2(L2) 3(A)
3(C)
3(D)
3(B)
Outdoor Unit Terminal Block
L1
L1
L2
L2
G
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 AUnit BUnit
CU
nit D
3
1(L1) 2(L2) 3 1(L1) 2(L2) 3 1(L1) 2(L2) 3
Indoor Unit Terminal Block Indoor Unit Terminal Block
Indoor Unit Terminal Block
G
1(L1) 2(L2)
2(L2)
1(L1)
2(L2)
1(L1)
Figure 310:Multi F LMU36CHV System Power Wiring and Communications Cable.
• All field-supplied wiring, components, and materials should follow national, state, and local codes and requirements.
• Use only stranded, shielded copper conductor.
• Ground wiring is required to prevent accidental electrical shock during current leakage, communication problems from electrical
noise, and motor current leakage. Do not connect the ground line to the pipes.
• Install a main shutoff switch or circuit breaker that interrupts all power sources simultaneously.
• Wiring cable size must comply with applicable national, state, and local codes.
Power Wiring (208-230V) and Communications Cable Details
WIRING CONNECTIONS
Due to our policy of continuous product innovation, some specications may change without notication.
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220 | WIRING CONNECTIONS
Multi F and Multi F MAX Indoor Unit Engineering Manual
MULTI
F
MAX
MULTI
F