Multi F Outdoor Condenser Installation Manual

61
Electrical System Installation
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
ELECTRICAL
Figure 75: Tightening the Ring Terminal to the
Terminal Plate.
3RZHU:LULQJ&RPPXQLFDWLRQ&DEOH&RQQHFWLRQV
Best practice dictates using solderless ring or fork terminals at all power wiring and com-
munication cable terminations. Use copper bearing ring or fork terminals; do not use
galvanized or nickel plate over steel. Use appropriate crimping tool to attach the ring or fork
terminals at all power wiring and control cable terminations.
To Install a Ring or Fork Terminal:
1. Trim the wiring with wire cutters or pliers, then strip the insulation to expose the strand
wiring to about 3/8 inches.
2. Using a ring terminal fastener or pliers, securely clamp a ring terminal to each stripped
wire end.
Ring Terminal
Wiring / Cable
Figure 73: Close up of a Typical Ring Terminal.
Strip to 3/8"
Ring
Terminal
Connecting Cable
Connecting cable
Loosening the
terminal block
screw
Fastening the
wiring tightly
Figure 74: Adding a Ring Terminal to the
Wiring.
To Connect the Wiring to the Terminals:
1. Remove the JIS terminal screws from the (outdoor unit, branch distribution unit, or indoor
unit) terminal plate with a JIS screwdriver. (See information about LG terminal connec-
tions on the next page.)
2. Position the ring terminal around the terminal, place the terminal screw in the ring, and
tighten to the terminal plate using a JIS screwdriver.
• Firmly attach the wire; secure in a way to prevent external forces from being imparted to
the terminal block.
• Use an appropriately sized JIS screwdriver for tightening the terminals.
•
Do not over tighten the connections; over tightening will damage the terminals.
If ring terminals or fork terminals are not available, then:
•
Do not terminate different gauge wires to the power terminal block. (Slack in the wiring
will generate heat.)
• When terminating wires of the same thickness, follow the instructions demonstrated in the
figures below.
•
1HYHUDSSO\OLQHYROWDJHSRZHUWRWKHFRPPXQLFDWLRQVFDEOHWHUPLQDOEORFN,IFRQWDFWLVPDGHWKH3&%VZLOOEHGDPDJHG
• $OZD\VLQFOXGHVRPHDOORZDQFHLQWKHZLULQJOHQJWKZKHQWHUPLQDWLQJ)LUPO\DWWDFKWKHZLULQJRUFDEOHEXWSURYLGHVRPHVODFNWRIDFLOLWDWH
UHPRYLQJWKHHOHFWULFDOSDQHOVZKLOHVHUYLFLQJDQGWRSUHYHQWH[WHUQDOIRUFHVIURPGDPDJLQJWKHWHUPLQDOEORFN
: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.
,ISRZHUZLUHVDUHQRWSURSHUO\WHUPLQDWHGDQG¿UPO\DWWDFKHGWKHUHLVULVNRI¿UHHOHFWULFVKRFNFDXVLQJSK\VLFDOLQMXU\RUGHDWK
WARNING
Figure 76: Proper and Improper Power Wiring Connections.
&RQQHFWLRQVDQG6SHFL¿FDWLRQV
NOTE