LG LS-J0960HL Service Manual ▷ View online
-34-
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.
Liquid side
Gas side
CLOSE
CLOSE
Indoor unit
Outdoor unit
Closed
Closed
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.
set will be needed.
CAUTION : Do not leak the gas in the air during air purging. Use vaccum pump as far as possible
-35-
A
A
B
Oil trap
Outdoor unit
Indoor unit
Outdoor unit
Indoor unit
B
6. Pipe length and the elevation
• Capicity is based on standard length and maximum allowance length is the basis of reliability.
• Oil trap should be installed per 5~7 meters.
• Numerical value in "( )" is for Rotary Comp. model.
CAUTION
In case more than 5m
Max. Piping
Length
£
(m)
Capacity
(Btu/h)
7~12K
15
7
5
20
18K
30(20)
15(10)
5
20
24K~30K
30
15
5
30
Max.
Elevation
£
(m)
Standard
Length(m)
Additional Refrig-
erant
(g/m)
-36-
7. Test running
RESET
RESET
RESET
Battery cover
Discharge air
Bolt
Tubing
connection
Settlement of Outdoor Unit
• Anchor the outdoor unit with a bolt and nut
(ø10cm) tightly and horizontally on a concrete or
rigid mount.
rigid mount.
• When installing on the wall, roof or rooftop, anchor
the mounting base securely with a nail or wire
assuming the influence of wind and earthquake.
assuming the influence of wind and earthquake.
• In the case when the vibration of the unit is con-
veyed to the house, settle the unit with an anti-
vibration rubber.
vibration rubber.
2) Evaluation of the performance
1. Measure the temperature of the intake and dis-
charge air.
2. Ensure the difference between the intake tem-
perature and the discharge one is more than 8
°C(Cooling) or reversely (Heating).
°C(Cooling) or reversely (Heating).
1) Connection of power supply
1. Connect the power supply cord to the inde-
pendent power supply.
• Circuitbreaker is required.
• Circuitbreaker is required.
2. Prepare the remote controller.
• Insert two batteries provided.
Remove the battery cover from the remote con-
troller.
troller.
• Slide the cover according to the arrow direction.
Insert two batteries.
(Two "R03" or "AAA" dry-cell batteries or equiv-
alent.)
(Two "R03" or "AAA" dry-cell batteries or equiv-
alent.)
• Be sure that the (+) and (-) directions are cor-
rect.
• Be sure that both batteries are new.
Re-attach the cover.
• Slide it back into position.
3. Operate the unit for fifteen minuites or more.
-22-
5-7mm
ø70mm
A
A
A
A
Center
Right rear piping
Left rear piping
Center
ø70mm
Indoor
Outdoor
WALL
Right rear piping
Installation plate
Marking-off line
Thread
Weight
Type "A" screw
Left rear piping
ø70mm
ø70mm
50mm
20mm
20mm
80mm
2) Indoor Unit Installation
The mounting wall should be strong and solid enough
to protect it from the vibration.
to protect it from the vibration.
1.Mount the installation plate on the wall with four
Type "A" screws.
(if mounting the unit on the concrete wall, consider
using anchor bolts.)
using anchor bolts.)
• Always mount the Installation plate horizontally by
aligning the marking-off line by means of the
thread and a level.
thread and a level.
2. Drill the piping hole with 70mm dia. holecore
drill.
• Line according to the arrows marked on lower the
left and the right side of the Installation Plate.
The meeting point of the extended line is the cen-
ter of the hole.
The meeting point of the extended line is the cen-
ter of the hole.
• Drill the Piping hole at either the right or the left
and the hole should be slightly slanted to the out-
door side.
door side.
The lower left and right side of Installation
Plate
Plate
7K, 9K Btu
12K Btu
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