LG MULTI V ARNU243TTD4 Installation Manual

48
MULTI V Ceiling Cassette Indoor Units
Due to our policy of continuous product innovation, some specifications may change without notification.
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Terminal Connections
LG uses a “JIS” type of screw for all terminals; use a JIS screwdriver to tighten and
loosen these screws and
avoid damaging the terminal. Do not overtighten the
connections — overtightening will damage the terminals — but firmly and securely at-
tach the wiring in a way to prevent external forces from being imparted to the terminal
block.
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Figure 53: JIS Screws.
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: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.
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Best practice dictates using solderless ring or fork terminals at all power wiring and communica-
tion cable terminations. Use copper bearing ring or fork terminals; do not use galvanized or
nickle plate over steel. Use appropriate crimping tool to attach the ring or fork terminals at all
power wiring and control cable terminations. To install:
• Firmly attach the wire; secure in a way to prevent external forces from being imparted to the
terminal block.
• Use an appropriately sized screwdriver for tightening the terminals.
•
Do not overtighten the connections; overtightening 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.
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Ring Terminal
Wiring / Cable
Figure 51: Close up of a Typical Ring
Terminal.
Figure 52: Proper and Improper Power Wiring Connections.
WARNING
WIRING
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LG MULTI V ARNU243TTD4 Specifications

General

Brand	LG
Model	MULTI V ARNU243TTD4
Category	Air Conditioner
Language	English