Indoor Unit Installation; Wiring Connection - LG ARNU07GM1A4 Installation Manual
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Also See for ARNU07GM1A4:
- Engineering product data book (521 pages) ,
- Svc manual (91 pages) ,
- Owner's manual (27 pages)
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Indoor Unit Installation
• Select and mark the position for fixing bolts.
• Drill the hole for set anchor on the face of ceiling.
CAUTION : Tighten the nut and bolt
to prevent unit falling.
Wiring Connection
Connect the wires to the terminals on the control board individually according to the outdoor unit connection.
• Ensure that the color of the wires of outdoor unit and the terminal No. are the same as those of indoor
unit respectively.
<M1 Chassis>
Terminal Block Indoor
1(L)
2(N)
INDOOR POWER INPUT
<M2/M3 Chassis>
Terminal Block Indoor
Terminal Block Indoor
1(L)
INDOOR POWER INPUT
WARNING : Make sure that the screws of the terminal are free from looseness.
Clamping of cables
1) Arrange 2 power cables on the control panel.
2) First, fasten the steel clamp with a screw to the inner boss of control panel.
3) For the cooling model, fix the other side of the clamp with a screw strongly. For the heat pump
model, put the 0.75mm
the other boss of the control panel.
CAUTION : The Power cord connected to the unit should be selected according
to the following specifications.
Outdoor unit Indoor unit
Terminal Block Indoor
3
4
SODU SODU
Terminal Block Indoor
2(N)
3
4
2
cable(thinner cable) on the clamp and tighten it with a plastic clamp to
• Insert the set anchor and washer onto the sus-
pension bolts for locking the suspension bolts
on the ceiling.
• Mount the suspension bolts to the set anchor firmly.
• Secure the installation plates onto the suspen-
sion bolts (adjust level roughly) using nuts,
washers and spring washers.
Old building
1 Set anchor
2 Plate washer
3 Spring washer
4 Nut
5 Suspension
bolts
Central controller
IDU IDU
INTERNET
DRY1 DRY2 GND
Central controller
Outdoor unit Indoor unit
SODU SODU
IDU IDU
INTERNET
Installation
New building
Outdoor unit
12V
Outdoor unit
DRY1 DRY2 GND
12V
Installation Manual 11
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