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Model
LWC0961AHG
Pages
63
Size
3.4 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner
File
lwc0961ahg.zip
Date

LG LWC0961AHG Service Manual ▷ View online

—14—
3. INSTALLATION
3.1 SELECT THE BEST LOCATION
1.To prevent vibration and noise, make sure the unit is
installed securely and firmly.
2.Install the unit where the sunlight does not shine directly
on the unit.
3.The outside of the cabinet must extend outward for at
least 12" and there should be no obstacles, such as a
fence or wall, within 20" from the back of the cabinet
because it will prevent heat radiation of the condenser.
Restriction of outside air will greatly reduce the cooling
efficiency of the air conditioner.
4.Install the unit a little slanted so the back is slightly lower
than the front (about 
1
/
2
"). This will help force con-densed
water to the outside.
5.Install the unit from the bottom about 30"~60" above the
floor level.
3.2 CHECK OF INSTALLATION
The setting conditions must be checked prior to initial
starting. The undermentioned items are especially important
checking points when the installation is finished.
1. Grounding wire (Green or Green and Yellow) is provided
in the power cord. The green wire must be grounded.
2. Connect to a single-outlet 15A circuit.
(or 20A circuit for Electric Heater Model)
3. To avoid vibration or noise, make sure the air
conditioner is installed securely.
4 Avoid placing furniture or draperies in front of the air inlet
and outlet.
3.3. HOW TO DRAIN
(When using drain pipe)
The air conditioner must be installed horizontally or tilted
slightly to the outside for proper water drainage.
On exceptionally hot and humid days the air conditioner
may overflow conclensed water.
If the air conditioner is used in hot and a high humidity
zone, exchange the 
HOLE RUBBER for the 
DRAIN
PIPE.(See figure 21, figure 22.)
3.4 HOW TO ATTACH DRAIN PAN
The air conditioner employs a proper drain method whereby
the condensate water (moisture removed from the air) is
drained to the outside. In very humid weather, (and for
reverse cycle models in the reverse mode) excessive
condensate water removed from the air may cause some
water to collect. To remove this excess water you can install
the drain pan as detailed below.
1. Remove the hole rubber from the base-pan(for some models).
2. Install the drain pan to the left corner of the cabinet 
with 4 (or 2) screws.
3. Connect the drain hose to the outlet located at the
bottom of the drain pan.
You can purchase the drain hose or tubing locally to
satisfy your particular needs. (Drain hose is not supplied)
All side louvers of the cabinet must remain exposed
to the outside of the structure.
AWNING
COOLED AIR
HEAT
RADIATION
30"~60"
ABOUT 
1
/
2
"
Over 20"
FENCE
BASE PAN
HOLE RUBBER
DRAIN PIPE
1
BOTTOM
2
BASE PAN
BOTTOM
SCREW
CABINET
DRAIN PAN
DRAIN HOSE
Figure 22
Figure 23
Figure 21
Figure 20
CAUTION
—15—
3.5 HOW TO INSTALL
SUGGESTED TOOL REQUIREMENTS
PREPARATION OF CHASSIS
1. Before installing the room air conditioner, please
install the knob. (If it is not fixed on the unit.)
2. Remove the screws which fasten the cabinet at
both sides and at the back.
3. Slide the unit from the cabinet by gripping the base
pan handle and pulling forward while 
bracing the cabinet.
4. Slide the air conditioner into the case.
Reinstall the 2 screws removed earlier on each side
of the case.
CAUTION: The power cord must be connected to an independent
circuit. The green wire must be grounded.
5. Stuff the foam between the top of the unit and the
wall to prevent air and insects from getting into the
room.
6. Attach the front grille to the case by inserting the
tabs on the grille into the slots on the front of the
case. Push the grille in until it snaps into place.
When you detach the front grille from the case,
push the grille to your right side and pull it toward
you.
7. Lift the inlet grill and secure the front grille with a
screw. Lower the inlet grille into place.
(In case of some models, you can secure the front grille
from the right side or lower side.)
Shipping
Screws
Therm
ostat
Warmer
Cooler
Heater
Operatio
n
Therm
ostat
Warmer
Cooler
Heater
Operatio
n
Therm
ostat
Warmer
Cooler
Heater
Operatio
n
Therm
ostat
Warmer
Cooler
Heater
Operatio
n
Therm
ostat
Warmer
Cooler
Heater
Operation
Thermostat
Warmer
Cooler
Heater
Operation
SCREWDRIVER(+, -), RULLER, KNIFE, HAMMER, PENCIL, LEVEL
Therm
ostat
Warm
er
Coole
r
Heate
r
Oper
ation
at
Coole
r
Heate
r
Oper
ation
Therm
ostat
Warm
er
Coole
r
Heate
r
Oper
ation
Therm
ostat
Warm
er
Coole
r
Heate
r
Oper
ation
Figure 24
Figure 25
Figure 26
Figure 29
Figure 30
Figure 31
Figure 27
Figure 28
—16—
1. If you want to pull out the filter upward, open the
inlet grille slightly. Turn inside out the front grille.
Disassemble the inlet grille from the front grille
with separating the hinged part by inserting a "—"
type screw-driver tip.
Rotate the inlet grille 180 degrees and insert the
hooks into the lower holes of front grille.
Then, insert the filter (See Figure 32, 33)
2. Attach the front grille to the cabinet by inserting the
tabs on the grille into the tabs on the front of the
cabinet. Push the grille in until it snaps into place.
(See Figue 34)
3. Lift the inlet grille and secure it with a type A screw
through the front grille.
(See Figure 35)
4. If you want to pull out the filter downward, use the
reversible inlet grille without change.
(The grille is already assembled for that way.)
Inlet Grille
Therm
ostat
Warm
er
Coole
r
Heate
r
Oper
ation
3.6 HOW TO USE THE
REVERSIBLE INLET GRILLE
Figure 32
Figure 33
Figure 34
Figure 35
380(14  /  ")
31
32
A
Thermostat
Warmer
Cooler
Heater
Operation
—17—
4. TROUBLESHOOTING GUIDE
4.1 OUTSIDE DIMENSIONS
unit: mm(inch)
4.2 PIPING SYSTEM
Figure 36 is a brief description of the important components and their function in what is called the refrigeration
system. This will help you to understand the refrigeration cycle and the flow of the refrigerant in the cooling cycle.
MOTOR
COMPRESSOR
OIL
(LIQUID REFRIGERANT)
CAPILLARY TUBE 
OUTSIDE COOLING
AIR FOR REFRIGERANT
PASS THROUGH
SUCTION LINE
COOL LOW PRESSURE VAPOR
COOLED
AIR
COMPLETE LIQUID
BOIL OFF POINT
LIQUID
PRESSURE
DROP
ROOM AIR HEAT LOAD
VAPOR INLET
HOT
DISCHARGED
AIR
LIQUID OUTLET
HIGH PRESSURE VAPOR
LIQUID REFRIGERANT
LOW PRESSURE VAPOR
ROOM AIR CONITIONER
EVAPORATOR COILS
CONDENSER COILS
CYCLE OF REFRIGERATION
CAPILLARY  
TUBE
COMPRESSOR
BLOWER
: COOLING CYCLE
: HEATING CYCLE
EVAPORATOR  COIL
CONDENSER
COIL
FAN
MOTOR
Figure 36
Look
A
G/P/E
567(22 
5
/
16
")
N
555(21 
6
/
7
")
(Heating Model)
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