LG MULTI V S ARUN038GSS4 User Manual

51
Wiring
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.
• If power wires are not properly terminated
and firmly attached, there is risk of fire,
electric shock, and physical injury or death.
•
Never ground the shield of the com-
munications cable to the indoor unit frame
or other grounded entities of the building.
Failure to properly provide a National Elec-
trical Code-approved earth ground can
result in electric shock, physical injury or
death.
• Never apply line voltage power to the communications cable terminal block. If contact is made, the PCBs may be damaged.
• Always include some allowance in the wiring length when terminating. Provide some slack to facilitate removing the electrical panels while
servicing.
:Copper Wire
Terminate multiple power wires of
the same gauge to both sides.
Do not terminate two wires on
one side.
Do not terminate different gauge
wires to a terminal block.
Figure 60: Proper and Improper Power Wiring Connections
Communication Cable Specifications
Between Outdoor Unit and Indoor Units
• Use a two-core, stranded, shielded or unshielded cable minimum 18 gauge between the Multi V S outdoor unit and the indoor units. If shielded,
cable must be grounded to the chassis at the outdoor unit only.
• Insulation material as required by local code.
• 5DWHGIRUFRQWLQXRXVH[SRVXUHRIWHPSHUDWXUHVXSWR)
• 0D[LPXPDOORZDEOHFDEOHOHQJWKIHHW
• Ring and spade terminals used to connect communications cables MUST be copper bearing.
Do NOT use terminals that are galvanized
or nickel plate over steel.
• )LUPO\DWWDFKWKHFDEOHSURYLGHVODFNEXWVHFXUHLQDZD\WRSUHYHQWH[WHUQDOIRUFHVIURPEHLQJLPSDUWHGRQWKHWHUPLQDOEORFN
• Communications cable connecting the Multi V S outdoor unit and indoor unit(s) should be installed and terminated in a daisy chain (BUS)
configuration starting at the Multi V S outdoor unit.
• Wiring should be completed without splices.
• Always verify the communication cable is connected to a communications terminal on the Multi V S unit. Never apply line voltage power to the
communication cable connection. If contact is made, the PCBs may be damaged.
• Position the Multi V S outdoor unit communications cables away from the power wiring. Refer to minimum spacing requirements provided in
Table 30.
•
Never use a common multiple-core communications cable. Each communications bus shall be provided a separate cable (i.e., between
Multi V S outdoor unit and indoor units, Multi V S outdoor units and central controller(s). If communications cables of separate systems are
wired using a common multiple-core cable, it will result in a poor communications signal and unacceptable system operation.
Figure 61: 0XOWL966\VWHP&RPPXQLFDWLRQV/DEHOLQJ6FKHPDWLF
5HFRPPHQGHG²7ZR&RUH6WUDQGHG6KLHOGHGRU8QVKLHOGHG
&DEOHLQD'DLV\&KDLQ&RQ¿JXUDWLRQ
,PSURSHUO\7HUPLQDWHG&RPPXQLFDWLRQV&DEOH²0XOWLSOH&RUH
&DEOHLQD6WDUEXUVW&RQ¿JXUDWLRQ
WIRING
&RPPXQLFDWLRQV&DEOH6SHFL¿FDWLRQV

LG MULTI V S ARUN038GSS4 Specifications

General

Brand	LG
Model	MULTI V S ARUN038GSS4
Category	Air Conditioner
Language	English