Multi F Outdoor Condenser Installation Manual

66
MULTI F / MULTI F MAX Outdoor Unit Installation Manual
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.
MULTI
F
MAX
MULTI
F
Figure 85: Multi F LMU303HV and LMU363HV System Power Wiring and Communications Cable.
ELECTRICAL
,QVWDOODWLRQ
Outdoor Unit
L(L1)
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 A Unit B Unit C Unit 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
G
GG
G
N(L2) L(L1) N(L2) L(L1) N(L2) L(L1) N(L2) L(L1) N(L2)
$OOILHOGVXSSOLHGZLULQJFRPSRQHQWVDQGPDWHULDOVPXVWFRPSO\ZLWKDOODSSOLFDEOHQDWLRQDOVWDWHDQGORFDOFRGHVDQGUHTXLUHPHQWV
,PSURSHUZLULQJZLOOUHVXOWLQILUHHOHFWULFVKRFNFDXVLQJSK\VLFDOLQMXU\RUGHDWK
*URXQGZLULQJLVUHTXLUHGWRSUHYHQWDFFLGHQWDOHOHFWULFDOVKRFNGXULQJFXUUHQWOHDNDJHFRPPXQLFDWLRQSUREOHPVIURPHOHFWULFDOQRLVHDQG
motor current leakage. 'RQRWFRQQHFWWKHJURXQGOLQHWRWKHSLSHV7KHUHLVDULVNRI¿UHHOHFWULFVKRFNH[SORVLRQUHVXOWLQJLQSK\VLFDO
LQMXU\RUGHDWK
,QVWDOODPDLQVKXWRIIVZLWFKRUFLUFXLWEUHDNHUWKDWLQWHUUXSWVDOOSRZHUVRXUFHVVLPXOWDQHRXVO\7KHUHLVDULVNRIILUHHOHFWULFVKRFNH[SOR-
VLRQUHVXOWLQJLQSK\VLFDOLQMXU\RUGHDWK
7HUPLQDOEORFNODEHOVDSSHDUDQFHVDQGORFDWLRQZLOOYDU\GHSHQGLQJRQRXWGRRUXQLWPRGHO
Maintain polarity throughout the communication network. The system will malfunction if not properly wired.
NOTE
$OOILHOGVXSSOLHGZLULQJFRPSRQHQWVVL]HVDQGPDWHULDOVPXVWFRPSO\ZLWKDOODSSOLFDEOHQDWLRQDOVWDWHDQGORFDOFRGHVDQGUHTXLUH-
ments. Failure to install proper electrical components can result in property damage and equipment malfunction.
*URXQGZLULQJLVUHTXLUHGWRSUHYHQWFRPPXQLFDWLRQSUREOHPVIURPHOHFWULFDOQRLVHDQGPRWRUFXUUHQWOHDNDJH)DLOXUHWRSURYLGHSURSHU
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.