LG MULTI V ARNU073M1A4 Installation Manual page 80

System ID No.: _________________________________________________ Indoor Unit ID.: ____________________________________
Checked by: __________________________________ Date:__________________ Signature: ___________________________________
Electrical
Power provided is single phase, ±10% of indoor unit nameplate specifications.
Power wires properly sized and protected per NEC and local codes. Indoor unit is properly grounded.
Power and communications conductors are separated by the recommended minimum distance.
Terminal block screws are tight. Power wires are not in contact with terminals 3(A) and / or 4(B). Line voltage
wires have spade connectors installed.
Power wires are properly secured to the control box case to prevent wire tension at the terminal block.
Wires are protected from chaffing at control box and conduit pipe penetrations.
(Optional) Smoke detector is properly installed and wired. New batteries are installed (if applicable).
Low voltage control cables are properly secured to the control panel case. Terminal block screws are tight and
the cable is protected from sharp edges at control box case and conduit openings.
Cables are installed at recommended distances from high voltage and EMF generating equipment.
Outdoor unit / Indoor unit communications cable (terminals 3[A] and 4[B]).
Field provided communications cable is 18-2, twisted, stranded and shielded. All terminations are made at the
terminal block. No inline splices or wire caps are present.
Communications cable is plenum rated.
Communications cable shield is tied back and is grounded at only ONE end.
Wall Mounted Zone Controller Communications
LG factory provided zone controller stranded, shielded (white jacket) cable was used between the zone
controller(s) and indoor unit(s). If field wiring is used, it must be 22AWG, 3 conductor, twisted, stranded,
unshielded.
Zone controller cable has not been cut, spliced, or tied together with wire caps. Factory plugs are present.
Cable is securely plugged into the socket on the zone controller or the three screw terminals (controller model
specific); Yellow to "Y", Red to "R", and Black to "B".
Zone controller DIP switches have been adjusted for the application's space temperature sensing strategy.
Indoor Unit Control Panel
Zone controller cable is securely plugged into the CN-REMO socket on the indoor unit circuit board.
If an optional remote temperature sensor was installed, the associated cable is plugged into socket CN-ROOM
(the factory return air thermistor has been unplugged).
Indoor unit DIP switches have been adjusted for application (group control-master/slave; continuous fan
operation; dry contact).
If a gravity drain primary condensate system is used (condensate pipe ONLY connected to the lowest nipple)
the CN-D / Pump plugged has been removed from the socket on the control board (High-Static models only).
All plugs are properly seated in the sockets on the control board.
Power and communications cables are properly restrained and separated.
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Due to our policy of continuous product innovation, some specifications may change without notification.
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INSTALLATION CHECKLIST
N/A Not Complete Complete
N/A Not Complete Complete
N/A Not Complete Complete
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