Installation - LG ARUN50GS2A Quick Manual

Collective / Continuous Installation for roof top use
Space required for collective installation and continuous installation:
When installing several units, leave space between each block as
shown below considering passage for air and people.
- One row of stand alone installation
- Rows of collective installation (2 or more)
L should be smaller than H
L ≤ H
Seasonal wind and cautions in winter
- Sufficient measures are required in a snow area or severe cold area in
winter so that product can be operated well.
- Get ready for seasonal wind or snow in winter even in other areas.
- Install a suction and discharge duct not to let in snow or rain.
- Install the outdoor unit not to come in contact with snow directly. If
snow piles up and freezes on the air suction hole, the system may
malfunction. If it is installed at snowy area, attach the hood to the
system.
- Install the outdoor unit at the higher installation console by 50cm than
the average snowfall (annual average snowfall) if it is installed at the
area with much snowfall.
• The height of H frame must be more than 2 times the snowfall
and its width shall not exceed the width of the product. (If
width of the frame is wider than that of the product, snow may
accumulate)
• Don't install the suction hole and discharge hole of the Outdoor
Unit facing the seasonal wind.

INSTALLATION

Foundation for Installation
- Check the strength and level of the installation ground so that the
unit will not cause any operating vibration or noise after installation.
- Fix the unit securely by means of the foundation bolts. (Prepare 4sets
of M12 foundation bolts, nuts and washers each which are available
on the market.)
- It is best to screw in the foundation bolts until their length are 20mm
from the foundation surface.
Spring washer
Frame
H-Beam
[Unit:mm]
Preparation of Piping
Main cause of gas leakage is defect in flaring work. Carry out correct
flaring work in the following procedure.
Cut the pipes and the cable
- Use the accessory piping kit or the pipes purchased locally.
- Measure the distance between the indoor and the outdoor unit .
- Cut the pipes a little longer than measured distance.
- Cut the cable 1.5m longer than the pipe length.
Copper
[Unit:mm]
Burrs removal
- Completely remove all burrs from the cut cross section of pipe/tube.
- Put the end of the copper tube/pipe to downward direction as you re-
move burrs in order to avoid to let burrs drop in the tubing.
Flaring work
- Carry out flaring work using flaring tool as shown below.
Bar
Copper pipe
Anti-vibration
materials
Concrete
Nut
base
Foundation bolt executing method
Slanted Uneven Rough
tube
90°
Pipe
Reamer
Point down
Handle
Bar
"A"
Yoke
Cone
Clamp handle
Red arrow mark
9
Four bolt are
required
3 thread ridges
[Unit:mm]