LG Hydro Kit, Руководство по установке

Страница: 25 / 77

Installation
Hydro Kit Installation Manual 25
ENGLISH
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 1.5 m longer than the pipe length.
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 remove burrs in
order to avoid to let burrs drop in the tubing.
Pipe welding
- Insert and weld the pipe.
- Always make sure to flow Nitrogen at 0.2
kgf/cm 2 within the pipe when welding.
- If the welding is done without flowing Nitrogen,
it can generate a thick oxidized coating within
the pipe to interfere with normal operation of
valve and compressor etc.
Insulation
- Use rubber foamed insulation material
(EPDM, NBR) with high thermal resistance.
- When installed in humid environment, use
thicker insulation material than usual.
- Insert the insulation material within the
product as deep as possible.
h
The thickness of the above insulation material
is based on thermal conduction rate of 0.036
W/m °C.
When installing independent power module,
refrigerant piping should be installed in
accordance with the manual of independent
power module
Copper
tube
90°
Slanted Uneven Rough
Pipe
Reamer
Point down
Copper tube
Direction of Nitrogen
Regulator
Taping
Valve
Nitrogen Nitrogen Nitrogen
Panel
Inside product
Insulation
Copper
tube
Classification Thickness
Liquid pipe(Ø 9.52) t 9 or above
Gas pipe(Ø 22.2 - 10 HP
Ø 15.88 - 4 HP)
t 19 or above
Refrigerant Piping