LG LS-H096PDC0 Service Manual ▷ View online
-29-
3. Evacuation
• Connect the charge hose end described in the pre-
ceding steps to the vacuum pump to evacuate the tub-
ing and indoor unit.
Confirm the "Lo" knob of the manifold valve is open.
Then, run the vacuum pump.
The operation time for evacuation varies with tubing
length and capacity of the pump. The following table
shows the time required for evacuation.
ing and indoor unit.
Confirm the "Lo" knob of the manifold valve is open.
Then, run the vacuum pump.
The operation time for evacuation varies with tubing
length and capacity of the pump. The following table
shows the time required for evacuation.
• When the desired vacuum is reached, close the "Lo"
knob of the manifold valve and stop the vacuum
pump.
pump.
4. Finishing the job
• With a service valve wrench, turn the valve stem of
liquid side valve counter-clockwise to fully open the
valve.
valve.
• Turn the valve stem of gas side valve counter-clock-
wise to fully open the valve.
• Loosen the charge hose connected to the gas side
service port slightly to release the pressure, then
remove the hose.
remove the hose.
• Replace the flare nut and its bonnet on the gas side
service port and fasten the flare nut securely with an
adjustable wrench. This process is very important to
prevent leakage from the system.
adjustable wrench. This process is very important to
prevent leakage from the system.
• Replace the valve caps at both gas and liquid side
service valves and fasten them tight.
This completes air purging with a vacuum pump.
The air conditioner is now ready to test run.
The air conditioner is now ready to test run.
(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 2-way valve turn the valve stem coun-
(3) To open the 2-way valve turn the valve stem coun-
terclockwise approximately 90°, wait for about 2~3
sec, and close it.
sec, and close it.
(4) Apply a soap water or a liquid neutral detergent on
the indoor unit connection or outdoor unit connec-
tions by a soft brush to check for leakage of the
connecting points of the piping.
tions by a soft brush to check for leakage of the
connecting points of the piping.
(5) If bubbles come out, the pipes have leakage.
Soap water method
Required time for evacuation when 30 gal/h vacuum pump is
used
10 min. or more
15 min. or more
If tubing length is less than 10m
(33 ft)
if tubing length is longer than 10m
(33 ft)
Gas side
Liquid side
Cap
Hexagonal wrench
2-way valve
(Open)
3-way valve
(Close)
Indoor unit
Outdoor unit
Lo
Hi
Manifold valve
Vacuum pump
Pressure
gauge
gauge
Open
Close
1. First, Check the side cover assembly exactly, Fix
power cord in the bottom groove of cover side
left.
left.
2. Assemble connecting lead wire with controller
and first fix the upper part of panel front, then
match the lower part of panel front
match the lower part of panel front
3. Drive two screws.
-30-
Panel Front
Connector
6. Panel Front Assembly
-31-
1. Check that all tubing and wiring have been properly
connected.
2. Check that the gas and liquid side service valves are
fully open.
1. Prepare remote control
1. Remove the battery cover
by pulling it according to the
arrow direction.
arrow direction.
2. Insert new batteries making
sure that the (+) and (–) of
battery are installed correctly.
battery are installed correctly.
3. Reattach the cover by
pushing it back into position.
NOTE:
• Use 2 AAA(1.5volt) batteries. Do not use recharge-
• Use 2 AAA(1.5volt) batteries. Do not use recharge-
able batteries.
• Remove the batteries from the remote control if the
system is not going to be used for a long time.
2. Settlement of outdoor unit
• Anchor the outdoor unit with a bolt and nut(ø10mm)
tightly and horizontally on a concrete or 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.
the influence of wind and earthquake.
• In the case when the vibration of the unit is conveyed
to the hose, secure the unit with an anti-vibration
bushing.
bushing.
3. Evaluation of the performance
Operate unit for 15~20 minutes, then check the system
refrigerant charge:
1. Measure the pressure of the gas side service valve.
2. Measure the temperature of the intake and discharge
refrigerant charge:
1. Measure the pressure of the gas side service valve.
2. Measure the temperature of the intake and discharge
of air.
3. Ensure the difference between the intake tempera-
ture and the discharge is more than 8°C(46°F) (Cool-
ing) or (Heating).
ing) or (Heating).
4. For reference; the gas side pressure of optimum con-
dition is as below.(Cooling)
NOTE: If the actual pressure is higher than shown, the
system is most likely over-charged, and charge
should be removed. If the actual pressure are
lower than shown, the system is most likely
undercharged, and charge should be added.
should be removed. If the actual pressure are
lower than shown, the system is most likely
undercharged, and charge should be added.
The air conditioner is now ready for use.
Bolt
Tubing connection
Discharge
temperature
temperature
Discharge air
Intake temperature
7. Test Running
R-22
35°C (95°F)
4~5kg/cm
2
G(56.8~71.0 P.S.I.G.)
R-410A
35°C (95°F)
8.5~9.5kg/cm
2
G(120~135 P.S.I.G.)
Outside ambient
TEMP.
Refrigerant
The pressure of the gas side
service valve.
This is performed when the unit is to be relocated
or the refrigerant circuit is serviced.
Pump Down means collecting all refrigerant in the
outdoor unit without loss in refrigerant gas.
or the refrigerant circuit is serviced.
Pump Down means collecting all refrigerant in the
outdoor unit without loss in refrigerant gas.
CAUTION:
Be sure to perform Pump Down procedure with the
unit cooling mode.
Be sure to perform Pump Down procedure with the
unit cooling mode.
Pump Down Procedure
1. Connect a low-pressure gauge manifold hose to
1. Connect a low-pressure gauge manifold hose to
the charge port on the gas side service valve.
2. Open the gas side service valve halfway and purge
the air from the manifold hose using the refrigerant
gas.
gas.
3. Close the liquid side service valve(all the way in).
4. Turn on the unit's operating switch and start the
4. Turn on the unit's operating switch and start the
cooling operation.
5. When the low-pressure gauge reading becomes 1
to 0.5kg/cm2 G(14.2 to 7.1 P.S.I.G.), fully close the
gas side valve stem and then quickly turn off the
unit. At that time, Pump Down has been completed
and all refrigerant gas will have been collected in
the outdoor unit.
gas side valve stem and then quickly turn off the
unit. At that time, Pump Down has been completed
and all refrigerant gas will have been collected in
the outdoor unit.
PUMP DOWN
-32-
Operation
Name and Function-Remote Control
The remote control transmits the signals to the system.
START/STOP BUTTON
Operation starts when this button is pressed and
stops when the button is pressed again.
Operation starts when this button is pressed and
stops when the button is pressed again.
OPERATION MODE SELECTION BUTTON
Used to select the operation mode.
Used to select the operation mode.
ROOM TEMPERATURE SETTING BUTTONS
Used to select the room temperature.
Used to select the room temperature.
INDOOR FAN SPEED SELECTOR
Used to select fan speed in four steps low,
medium, high and CHAOS.
Used to select fan speed in four steps low,
medium, high and CHAOS.
JET COOL
Used to start or stop the speed cooling/heating.
(speed cooling/heating operates super high fan
speed in cooling/heating mode)
Used to start or stop the speed cooling/heating.
(speed cooling/heating operates super high fan
speed in cooling/heating mode)
CHAOS SWING BUTTON
Used to stop or start louver movement and set
the desired up/down airflow direction.
Used to stop or start louver movement and set
the desired up/down airflow direction.
ON/OFF TIMER BUTTONS
Used to set the time of starting and stopping
operation.
Used to set the time of starting and stopping
operation.
TIME SETTING BUTTONS
Used to adjust the time.
Used to adjust the time.
TIMER SET/CANCEL BUTTON
Used to set the timer when the desired time is
obtained and to cancel the Timer operation.
Used to set the timer when the desired time is
obtained and to cancel the Timer operation.
SLEEP MODE AUTO BUTTON
Used to set Sleep Mode Auto operation.
Used to set Sleep Mode Auto operation.
AIR CIRCULATION BUTTON
Used to circulate the room air without cooling or
heating.
Used to circulate the room air without cooling or
heating.
ROOM TEMPERATURE CHECKING BUTTON
Used to check the room temperature.
Used to check the room temperature.
PLASMA(OPTIONAL)
Used to start or stop the plasma-purification
function.
Used to start or stop the plasma-purification
function.
RESET BUTTON
Used prior to resetting time or after replacing bat-
teries.
Used prior to resetting time or after replacing bat-
teries.
2nd F Button
Used prior to using modes printed in blue at the
bottom of buttons.
Used prior to using modes printed in blue at the
bottom of buttons.
AUTO CLEAN
Used to set Auto Clean mode.
Used to set Auto Clean mode.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
ON
OFF
CANCEL
AUTO CLEAN
SET
1
3
5
4
9
10
16
15
7
2
8
13
14
11
6
12
Cooling Operation
Auto Operation
Healthy Dehumidification Operation
Heating Operation
• Cooling Model(
), Heat Pump Model(
)
Flip-up door
(opened)
(opened)
Signal transmitter
Operation Mode
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