LG LS-H0560CL Service Manual ▷ View online
—22—
3) Form the pipings
1. Wrap the connecting portion of indoor unit with
the Insulation material and secure it with two
Plastic Bands. (for the right pipings)
Plastic Bands. (for the right pipings)
• If you want to connect an additional drain hose,
the end of the drain-outlet should keep distance
from the ground. (Do not dip it into water, and fix
it on the wall to avoid swinging in the wind.)
from the ground. (Do not dip it into water, and fix
it on the wall to avoid swinging in the wind.)
2. Tape the pipings, drain hose and connecting
Cable from down to up.
3. Form the pipings gathered by taping along the
exterior wall and fix it onto the wall by saddle
or equivalent.
or equivalent.
2. Tape the pipings and connecting cable from
down to up.
3. Form the pipings gathered by taping along the
exterior wall, make the Trap to be required to
prevent the room from entering the water.
prevent the room from entering the water.
4. Fix the pipings onto the wall by saddle or
equivalent.
In case of the outdoor unit to be installed below
position of the Indoor unit.
position of the Indoor unit.
In case of the Outdoor unit to be installed upper
position of the Indoor unit.
position of the Indoor unit.
Taping
Pipings
Connecting
cable
cable
Drain
hose
hose
Seal small openings
around pipings with a
gum type sealer.
around pipings with a
gum type sealer.
Trap is required to prevent water
from entering into electrical parts.
from entering into electrical parts.
Trap
Seal small openings
around pipings with a
gum type sealer.
around pipings with a
gum type sealer.
Trap
—23—
1) Air purging
The air which contains moisture remaining in the
refrigeration cycle may cause a malfunction on the
compressor.
refrigeration cycle may cause a malfunction on the
compressor.
1. Remove the caps from the 2-way and 3-way
valves.
2. Remove the service-port cap from the 3-way valve.
3. To open the valve, turn the valve stem of 2-way
valve counter-clockwise approx. 90° and hold it
there for five seconds, then close it.
there for five seconds, then close it.
4. Check a gas-leakage of the connecting portion of
the pipings.
CAUTION: Do not leak the gas in the air during
Air puging, with vacumm pump as
possible as you can.
possible as you can.
7. Set the both liquid and gas side valves to open
position with the Hexagonal wrench for the unit
operation.
operation.
Cap
Service port cap
Cover
control
control
To indoor unit
Liquid side
Liquid side
Gas side
2-way valve
(open)
(open)
3-way valve
(Close)
(Close)
Hexagonal
wrench
wrench
Outdoor unit
5. Air Purging
No leakage found
leakage found
Result
leakage persists
leakage persists
leakage ceased
5. To open 2-way valve again, turn the valve stem
counter-clockwise until it stops.
6. To purge the air, push the pin on the service port
of 3-way valve for three seconds with a hexagonal
wrench and set it free for one minute.
wrench and set it free for one minute.
• Re-tighten the connecting portion with torque
wrenches.
Repair
—24—
8. Checking a gas leakage
(1) Connect the manifold gauge to the service port of 3-way valve.
Measure the pressure.
(2) Keep it for 5-10 minutes.
Ensure if the pressure indicated on the gauge is as same as that of measured at first time.
NOTE:
The additional gas for air purping has been charged in the outdoor unit.
However, if the flare connections have not been done correctly and there gas leaks, a gas cylinder and the
charge set will be needed.
However, if the flare connections have not been done correctly and there gas leaks, a gas cylinder and the
charge set will be needed.
CAUTION: Do not leak the gas in the air during Air purging, with vacumm pump are possible as you can.
Indoor unit
Outdoor unit
Closed
Liquid side
CLOSE
Closed
Gas side
CLOSE
—25—
A
A
B
Oil trap
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
B
6. Pipe length and the elevation
• Capacity is based on standard length and maximum allowance length is the basis of reliability.
• Oil trap should be installed per 5~7 meters.
CAUTION
In case more than 5m
Max. Piping
Length
£
(m)
Capacity
(Btu/h)
5K
15
7
5
20
Max.
Elevation
£
(m)
Standard
Length(m)
Additional Refri-
gerant
(g/m)
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