LG AS-H0764DM0 User manual

LG
Room Air Conditioner
SERVICE MANUAL
LG
MODELS: AS-H0764DM0 AS-C0764DM0
AS-H0964DM0 AS-C0964DM0
AS-H1264DM0 AS-C1264DM0
AS-H1865DM0 LS-H0964DL0
AS-H2465DM0 LS-H1264DM0
LS-C1865DM0
LS-C2665DM0
LS-H1865DM0
LS-H2665DM0
CAUTION
website http://www.lgservice.com
• BEFORE SERVICING THE UNIT, READ THE SAFETY
PRECAUTIONS IN THIS MANUAL.
• ONLY FOR AUTHORIZED SERVICE PERSONNEL.

2Room Air Conditioner
Air Conditioner Service Manual
TABLE OF CONTENTS
LG Model Name ...............................................................................................................................................3
Safety Precautions..........................................................................................................................................5
Dimensions....................................................................................................................................................10
Symbols Used in this Manual...................................................................................................................10
Indoor Unit................................................................................................................................................10
Outdoor Unit.............................................................................................................................................12
Product Specifications .................................................................................................................................16
Installation .....................................................................................................................................................20
Selection of the Best Location..................................................................................................................20
Piping Length and Elevation.....................................................................................................................20
How to Fix Installation Plate.....................................................................................................................21
Drill a Hole in the Wall ..............................................................................................................................21
Drain hose junction...................................................................................................................................21
Flaring work and connection of piping .......................................................................................................22
Flaring work..............................................................................................................................................22
Connection of Piping Indoor.....................................................................................................................22
Connection of the Pipes-Outdoor.............................................................................................................26
Connecting the cable between indoor unit and outdoor unit ...................................................................27
Connect the Cable to the Indoor Unit.......................................................................................................27
Connect the Cable to the Outdoor Unit ....................................................................................................28
Checking the drainage and forming the pipings........................................................................................29
Checking the Drainage.............................................................................................................................29
Form the Piping........................................................................................................................................29
AIR PURGING ................................................................................................................................................30
Air purging................................................................................................................................................30
Air purging with vacuum pump .................................................................................................................30
Test Running .................................................................................................................................................32
Operation .......................................................................................................................................................33
Function of Controls .................................................................................................................................33
Display Function ......................................................................................................................................37
Self-diagnosis Function............................................................................................................................37
Remote Control Operations......................................................................................................................38
Disassembly ..................................................................................................................................................39
Indoor Unit................................................................................................................................................39
Schematic Diagram.......................................................................................................................................42
Electric Control Device.............................................................................................................................42
Wiring Diagram.........................................................................................................................................43
Components Location ..............................................................................................................................46
Troubleshooting Guide .................................................................................................................................48
Refrigeration Cycle Diagram ....................................................................................................................48
2-way, 3-way Valve .................................................................................................................................49
Cycle Parts...............................................................................................................................................55
Electronic Parts ........................................................................................................................................56
Exploded View...............................................................................................................................................63
Replacement Parts List ................................................................................................................................65

Service Manual 3
LG Model Name
2003
12 - 345678910
Code Type Code of Model Meaning
1 Producing Center, A~Z L: Chang-won R22 N: India
Refrigerant A: Chang-won R410A Z: Brazil
C: Chang-won R407C D: Indonesia
T: China M: Mexico
K: Turkey R22 V: Vietnam
E: Turkey R410A S: Out Sourcing
H: Thailand
2 Product Type A~Z S: Split Type Air Conditioner
3 Cooling/Heating/Inverter A~Z C: Cooling only
H: Heat pump
X: C/O + E/Heater
Z: H/P + E/Heater
V: AC Inverter C/O
N: AC Inverter H/P
Q: DC Inverter C/O
W: DC Inverter H/P
4, 5 Capacity 0~9 Cooling/Heating Capacity
Ex. "09" →9,000 Btu/h
6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3Phase
A~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase
3: 208-230V/60Hz C: 575V, 50Hz, 3Phase
5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase
6: 220-240V/50Hz E: 265V, 60Hz
7: 110V, 50/60Hz F: 200V, 50/60Hz
8: 380-415V/50Hz
9: 380-415V/60Hz
7 Chassis A~Z Name of Chassis of Unit
Ex. LSP →SP Chassis
8 Look A~Z Look,
Color (Artcool Model)
9 Function A~Z
10 Serial No. 1~9 LG Model De
* ARTCOOL COLOR
velopment Serial No.
Basic A
Basic+4Way B
Plasma Filter C
Plasma Filter+4 Way D
Tele+LCD E
Tele+LCD+Nano plasma+4Way F
Nano Plasma F+(A/changeove)+A/clean+Low A G
Nano Plasma F+(A/changeove)+A/clean+4way+Low A H
Tele+LED+4way I
Internet J
Plasma F+4Way+Oxy generator K
Nano Plasma F+(A/changeove)+A/clean L
Nano Plasma F+(A/changeove)+A/clean+4way M
Nano Plasma F+(A/changeove)+A/clean+PTC N
Nano Plasma F+(A/changeove)+Autoclean+4way+PTC P
Nano Plasma F+(A/changeove)+A/clean+4way+Low A+PTC Q
Negative ION+A/Clean R
(Nano)Plasma+Negative ION+A/Clean S
4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean T
Nano Plasma F+4Way+(A/changeove)+A/clean+ U
R Mirror
W White
B Blue
D Wood
M Metal
C Cherry

4Room Air Conditioner
2004~
12 - 345678910
Code Type Code of Model Meaning
1 Producing Center, A~Z
L Chang_won R22
A Chang_won R410A
C Chang_won R407C
T China
K Turkey R22
E Turkey R410A
H Thailand
N India
Z Brazil
D Indonesia
X Mexico
V Vietnam
S Out sourcing
Refrigerant
2 Product Type A~Z S: Split Type Air Conditioner
3 Cooling/Heating/Inverter A~Z C: Cooling only
H: Heat pump
X: C/O + E/Heater
Z: H/P + E/Heater
V: AC Inverter C/O
N: AC Inverter H/P
Q: DC Inverter C/O
W: DC Inverter H/P
4, 5 Capacity 0~9 Cooling/Heating Capacity
Ex. "09" →9,000 Btu/h
6 Electric Range 1~9 1: 115V/60Hz, A: 220V, 50Hz, 3Phase
A~Z 2: 220V/60Hz B: 208~230V, 60Hz, 3Phase
3: 208-230V/60Hz C: 575V, 50Hz, 3Phase
5: 200-220V/50Hz D: 440~460, 60Hz, 3Phase
6: 220-240V/50Hz E: 265V, 60Hz
7: 110V, 50/60Hz F: 200V
CHASSIS Look
D
K
L
G
M
N
D
P
Division
Panel Type(Deluxe)
Fighting 'Look'
(LG1)
(LG2)-SEMI PANEL
OEM1
OEM2
Panel Type(Deluxe)
LG3
, 50/60Hz
8: 380-415V/50Hz
9: 380-415V/60Hz
7 Chassis A~Z Name of Chassis of Unit
Ex. LSP →SP Chassis
8 Look A~Z Look,
Color (Artcool Model)
9 Function A~Z
10 Serial No. 1~9 LG Model De
* ARTCOOL COLOR
velopment Serial No.
R Mirror
W White
B Blue
D Wood
M Metal
C Cherry
S4/S5
S6
SQ
SR
ST
Basic A
Basic+4Way B
Plasma Filter C
Plasma Filter+4 Way D
Tele+LCD E
Tele+LCD+Nano plasma+4Way F
NBF F+(A/changeove)+A/clean+Low A G
NBF F+(A/changeove)+A/clean+4way+Low A H
Tele+LED+4way I
Internet J
Plasma F+4Way+Oxy generator K
NBF F+(A/changeove)+A/clean L
NBF F+(A/changeove)+A/clean+4way M
NBF F+(A/changeove)+A/clean+PTC N
NBF F+(A/changeove)+Autoclean+4way+PTC P
NBF F+(A/changeove)+A/clean+4way+Low A+PTC Q
(Nano)Plasma+ION+A/Clean S
4way+(Nano)Plasma F+
Negative ION+Healthy dehumidification +A/Clean T
Nano Plasma F+4Way+(A/changeove)+A/clean+Oxy generator U
4way+(Nano)Plasma F+Negative ION+Healthy dehumidification+A/Clean+Oxy generator V
Dry contact W
Wire remocon 8

Service Manual 5
Safety Precautions
Safety Precautions
To prevent injury to the user or other people and property damage, the following instructions must
be followed.
■Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is
classified by the following indications.
■Meanings of symbols used in this manual are as shown below.
This symbol indicates the possibility of death or serious injury.
This symbol indicates the possibility of injury or damage to properties only.
Be sure not to do.
Be sure to follow the instruction.
Do not use damaged power cords, plugs, or a
loose socket.
Always use the power plug and socket with the
ground terminal.
• There is risk of fire of electric shock. • There is risk of electric shock.
Install the panel and the cover of control box
securely.
.Do not modify or extend the power cord.
• There is risk of fire of electric shock. • No grounding may cause electric shock.
■Installation

6Room Air Conditioner
Safety Precautions
Do not install the product on a defective instal-
lation stand.
Be sure the installation area does not
deteriorate with age.
• It may cause injury, accident, or damage to the
product.
• If the base collapses, the air conditioner could fall
with it, causing property damage, product failure,
and personal injury.
• Sharp edges could cause injury. Be especially care-
ful of the case edges and the fins on the condenser
and evaporator.
• There is risk of fire, electric shock, explosion, or injury.
Be cautious when unpacking and installing the
product.
For installation, always contact the dealer or
an Authorized service center
For re-installation of the installed product,
always contact a dealer or an authorized ser-
vice center.
Do not install, remove, or re-install the unit by
yourself.
• There is risk of fire, electric shock, explosion, or
injury.
• There is risk of fire, electric shock, explosion, or
injury.

Service Manual 7
Safety Precautions
■Operation
Do not turn the air-conditioner ON or OFF by
plugging or unplugging the power plug.
Use a dedicated outlet for this appliance.
• There is risk of fire or electrical shock. • There is risk of fire or electrical shock.
Grasp the plug to remove the cord from the
outlet. Do not touch it with wet hands.
Do not place a heater or other appliances near
the power cable.
• There is risk of fire or electrical shock. • There is risk of fire and electric shock.
Do not allow water to run into electrical parts. Do not store or use flammable gas or com-
bustibles near the air conditioner.
• There is risk of fire, failure of the product, or electric
shock.
• There is risk of fire or failure of product.
Wax
Thinner

8Room Air Conditioner
Always check for gas (refrigerant) leakage after
installation or repair of product.
Install the drain hose to ensure that water is
drained away properly.
• Low refrigerant levels may cause failure of product. • A bad connection may cause water leakage.
Keep level even when installing the product. Use two or more people to lift and transport
the air conditioner.
• To avoid vibration or water leakage. • Avoid personal injury.
■Installation
90˚
Unplug the unit if strange sounds, odors, or
smoke comes from it.
Be cautious that water could not enter the
product.
•There is risk of electric shock or fire. •There is risk of fire, electric shock, or product dam-
age.
Safety Precautions

Service Manual 9
Use a soft cloth to clean. Do not use harsh
detergents, solvents, etc.
Do not touch the metal parts of the product
when removing the air filter. They are very
sharp!
•There is risk of fire, electric shock, or damage to the
plastic parts of the product.
•There is risk of personal injury.
Do not step on or put anyting on the product.
(outdoor units)
Do not insert hands or other objects through
the air inlet or outlet while the air conditioner
is plugged in.
•There is risk of personal injury and failure of product. •There are sharp and moving parts that could cause
personal injury.
■Operation
Wax
Safety Precautions

10 Room Air Conditioner
Dimensions
Dimensions
Installation plate
D
H
W
W mm 840
H mm 270
D mm 153
Model
Dimension
7k, 9k, 12k Btu Series
Indoor Unit
This symbol alerts you to the risk of electric shock.
This symbol alerts you to hazards that could cause harm to the
air conditioner.
This symbol indicates special notes.
NOTICE
Symbols Used in this Manual

Service Manual 11
Dimensions
Installation plate
D
H
W
W mm 1090
H mm 300
D mm 178
Model
Dimension
18k, 24 Btu Series

12 Room Air Conditioner
WL2
L3
L1
D
H
L4
L5
Gas side
(3-way valve)
Liquid side
(2-way valve)
MODEL
DIM unit
W mm 717
H mm 498
D mm 229
L1 mm 270
L2 mm 56
L3 mm 464
L4 mm 17
L5 mm 130
Dimensions
Outdoor Unit
7k, 9k, 12k Series

Dimensions
Service Manual 13
W
L7 L6 L8 L9
D
L1
L2
L3
L10L11
L4L5
H
Gas side
Liquid side
MODEL
DIM
W mm 870
H mm 655
D mm 320
L1 mm 370
L2 mm 340
L3 mm 25
L4 mm 630
L5 mm 25
L6 mm 546
L7 mm 162
L8 mm 162
L9 mm 54
L10 mm 74.5
L11 mm 79
AS-H2465DM0

14 Room Air Conditioner
Dimensions
W
D
L1
L2
H
L3
L4
L5L6 L7 L8
L9 L10
Liquid side
2-way valve
Gas side
3-way valve
MODEL LS-C1865DM0
DIM unit
W mm 801
H mm 555
D mm 262
L1 mm 339
L2 mm 37
L3 mm 543.6
L4 mm 11.4
L5 mm 591
L6 mm 105
L7 mm 105
L8 mm 72.5
L9 mm 86.4
L10 mm 77

Service Manual 15
Dimensions
MODEL
DIM
WL2
L3
L1
D
H
L4
L5
Gas side
(3-way valve)
Liquid side
(2-way valve)
W mm 840
H mm 577
D mm 276
L1 mm 337
L2 mm 64
L3 mm 611
L4 mm 16
L5 mm 156
AS-C1865DM0, LS-C2465DM0, AS-C2465DM0
AS-H1865DM0, LS-H1865DM0, LS-H2465DM0

16 Room Air Conditioner
Product Specifications
Product Specifications
Table-1
Model Name
Item Unit
Cooling Capacity Btu/h
Heating Capacity
Moisture Removal l/h
Power Source Ø, V, Hz
Air Circulation Indoor m3/min
Outdoor
Noise Level Indoor dB (A)±3
Outdoor
Input Cooling W
Heating
Running Cooling A
Current Heating
E.E.R. Cooling Btu/hW
C.O.P Heating
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
(W x H x D) Outdoor
Net. Weight Indoor kg
Outdoor
Refrigerant g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Left & Right)
Chaos Wind
Timer
Self Diagnosis
Remocon Type
Service Valve Liquid inch(mm)
Gas
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
7,800 9,500 12,100 12,000
8,050 10,350 13,200 13,200
1 1.2 1.2 1.2
1Ø,220-240V,50Hz 1Ø,220-240V,50Hz 1Ø,220-240V,50Hz 1Ø,220-240V,50Hz
5.0/5.7 5.8/6.6 8.8/9.5 8.8/9.5
20 20 22 22
32 33 41 41
47 47 49 49
710 860 1100 1300
690 880 1130 1250
3.1 4.1 5.3 6
3 4.2 5.1 5.8
10.98 11.0 11.0 9.2
3.42 3.42 3.42 3.1
7 7 14 14
22 22 22 22
840x270x153 840x270x153 840x270x153 840x270x153
717x481x228 717x481x228 717x481x228 717x481x228
7777
24 24 25 27
800(R410A) 820(R410A) 850(R410A) 800(R22)
OOOO
OOOO
OOOO
24Hr ON/OFF 24Hr ON/OFF 24Hr ON/OFF 24Hr ON/OFF
OOOO
L.C.D wireless L.C.D wireless L.C.D wireless L.C.D wireless
1/4"(6.35) 1/4"(6.35) 1/4"(6.35) 1/4"(6.35)
3/8"(9.52) 3/8"(9.52) 1/2"(12.7) 1/2"(12.7)
OOOO
OOOO
1.0mm2x3, 0.75mm2x2 1.0mm2x3, 0.75mm2x2 1.0mm2x3, 0.75mm2x2 1.0mm2x3, 0.75mm2x2
1.0mm21.0mm21.0mm21.0mm2
AS-H0764DM0 AS-H0964DM0 AS-H1264DM0 LS-H1264DM0

Service Manual 17
Product Specifications
Table-2
Model Name
Item Unit
Cooling Capacity Btu/h
Heating Capacity
Moisture Removal l/h
Power Source Ø, V, Hz
Air Circulation Indoor m3/min
Outdoor
Noise Level Indoor dB (A)±3
Outdoor
Input Cooling W
Heating
Running Cooling A
Current Heating
E.E.R. Cooling Btu/hW
C.O.P Heating
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
(W x H x D) Outdoor
Net. Weight Indoor kg
Outdoor
Refrigerant g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Left & Right)
Chaos Wind
Timer
Self Diagnosis
Remocon Type
Service Valve Liquid inch(mm)
Gas
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
9,000 7,800 9,500 12,100
9,900
1.2 1 1.2 1.2
1Ø,220-240V,50Hz 1Ø,220-240V,50Hz 1Ø,220-240V,50Hz 1Ø,220-240V,50Hz
5.8/6.6 5 5.8 8.6
20 20 20 22
33 32 33 41
47 47 47 49
950 710 860 1100
900
4.2 3.1 4.1 5.3
4
9.47 10.98 11 11
3.22
77 714
22 22 22 22
840x270x153 840x270x153 840x270x153 840x270x153
717x481x228 717x481x228 717x481x228 717x481x228
77 77
24 24 24 25
720(r22) 750(R410A) 720(R410A) 850(R410A)
OO OO
XO OO
OO OO
24Hr ON/OFF 24Hr ON/OFF 24Hr ON/OFF 24Hr ON/OFF
OO OO
L.C.A wireless L.C.A wireless L.C.A wireless L.C.A wireless
1/4"(6.35) 1/4"(6.35) 1/4"(6.35) 1/4"(6.35)
3/8"(9.52) 3/8"(9.52) 3/8"(9.52) 1/2"(12.7)
OO OO
OO OO
1.0mm2x3, 0.75mm2x2 1.0mm2x3, 0.75mm2x2 1.0mm2x3, 0.75mm2x2 1.0mm2x3, 0.75mm2x2
1.0mm21.0mm21.0mm21.0mm2
LS-H0964DL0 AS-C0764DM0 AS-C0964DM0 AS-C1264DM0

18 Room Air Conditioner
Product Specifications
Model Name
Item Unit
Cooling Capacity Btu/h
Heating Capacity
Moisture Removal l/h
Power Source Ø, V, Hz
Air Circulation Indoor m3/min
Outdoor
Noise Level Indoor dB (A)±3
Outdoor
Input Cooling W
Heating
Running Cooling A
Current Heating
E.E.R. Cooling Btu/hW
C.O.P Heating W/W
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
(W x H x D) Outdoor
Net. Weight Indoor kg
Outdoor
Refrigerant g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Left & Right)
Chaos Wind
Timer
Self Diagnosis
Remocon Type
Service Valve Liquid inch(mm)
Gas
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
Table-3
18,500 24,000 18,500 24,000
19,800 26,400 19,800 26,400
1.8 2.9 1.8 2.9
1
Ø,220-240V,50Hz 1 Ø,220-240V,50Hz 1 Ø,220-240V,50Hz 1 Ø,220-240V,50Hz
13 15 13 15
42 42 42 42
40 45 40 45
56 56 56 56
1,990 2,700 1,810 2,330
1,840 2,770 1,800 2,360
9.2 12.6 8.2 10.5
8.4 12.6 8.2 10.5
9.3 8.2 10.27 10.3
3.16 2.73 3.2 3
23 25.6 23 25.6
72 82.9 72 82.9
1090 x 300 x 178 1090 x 300 x 178 1090 x 300 x 178 1090 x 300 x 178
840 x 5777 x 276 840 x 5777 x 276 840 x 5777 x 276 870 x 655 x 320
13 13 13 13
54 60 54 60
1200(R22) 1450(R22) 1250(R410A) 1450(R410A)
OO OO
OO OO
OO OO
24Hr ON/OFF 24Hr ON/OFF 24Hr ON/OFF 24Hr ON/OFF
OO OO
L.C.D wireless L.C.D wireless L.C.D wireless L.C.D wireless
1/4"(6.35) 1/4"(6.35) 3/8"(9.52) 3/8"(9.52)
1/2"(12.7) 1/2"(12.7) 5/8"(15.88) 5/8"(15.88)
OO OO
OO OO
1.5mm2x0.75mm21.5mm2x0.75mm21.5mm2x0.75mm21.5mm2x0.75mm2
1.5mm21.5mm22.5mm22.5mm2
LS-H1865DM0 LS-H2665DM0 AS-H1865DM0 AS-H2465DM0

Service Manual 19
Model Name
Item Unit
Cooling Capacity Btu/h
Moisture Removal l/h
Power Source Ø, V, Hz
Air Circulation Indoor m3/min
Outdoor
Noise Level Indoor dB (A)±3
Outdoor
Input W
Running A
E.E.R. Btu/hW
Motor Output Indoor W
Outdoor
Dimensions Indoor mm
(W x H x D) Outdoor
Net. Weight Indoor kg
Outdoor
Refrigerant g
Airflow Direction Control (Up & Down)
Airflow Direction Control (Left & Right)
Chaos Wind
Timer
Self Diagnosis
Remocon Type
Service Valve Liquid inch(mm)
Gas
Sleeping Operation
Drain Hose
Connecting Cable
Power Cord
Table-4
18,500 24,000
1.8 2.9
1 Ø,220-240V,50Hz 1 Ø,220-240V,50Hz
13 15
42 42
40 45
56 56
1,950 2,700
8.5 12.6
9.5 8.89
22 25.6
61 82.9
1090 x 300 x 178 1090 x 300 x 178
801 x 555 x 262 540 x 577 x 276
13.5 13.5
60 60
1050(R22) 1300(R22)
OO
OO
OO
24Hr ON/OFF 24Hr ON/OFF
OO
L.C.D wireless L.C.D wireless
1/4"(6.35) 3/8"(9.52)
1/2"(12.7) 5/8"(15.88)
OO
OO
1.5 mm2 2.5 mm2
1.5mm22.5mm2
LS-C1865DM0 LS-C2465DM0
Product Specifications

20 Room Air Conditioner
Installation
Installation
Indoor unit
•Do not have any heat or steam near the unit.
•Select a place where there are no obstacles in front of the
unit.
•Make sure that condensation drainage can be conveniently
routed away.
Do not install near a doorway.
•Ensure that the space around the left and right of the unit is
more than "A". The unit should be installed as high on the
wall as possible, allowing a minimum of "B" from ceiling.
•Use a stud finder to locate studs to prevent unnecessary
damage to the wall.
Outdoor unit
•If an awning is built over the unit to prevent direct sunlight
or rain exposure, make sure that heat radiation from the
condenser is not restricted.
•Ensure that the space around the back and sides is more
than 10cm. The front of the unit should have more than
70cm of space.
•Do not place animals and plants in the path of the warm air.
•Take the air conditioner weight into account and select a
place where noise and vibration are minimum.
•Select a place so that the warm air and noise from the air
conditioner do not disturb neighbors.
Rooftop Installations:
•If the outdoor unit is installed on a roof structure, be
sure to level the unit. Ensure the roof structure and
anchoring method are adequate for the unit location.
•Consult local codes regarding rooftop mounting.
More than 10cm
More than
5cm
More than 2.3m
More than
5cm
•Capacity is based on standard length and maxi-
mum allowance length is on the basis of reliability.
•Oil trap should be installed every 5~7 meters.
Grade Clearance(cm)
AB
5K~28K 10 5
30K~38K 30 12
Pipe Size
Capacity
(Btu/h) GAS LIQUID
Max.
Length
A (m)
Additional
Refrigerant
(g/m)
Max.
Elevation
B(m)
Standard
Length
(m)
5k~14k 3/8"(Ø9.52) 1/4"(Ø6.35) 4 or 7.5 7 15 20
1/2"(Ø12.7) 1/4"(Ø6.35) 4 or 7.5 7 15 20
1/2"(Ø12.7) 1/4"(Ø6.35) 4 or 7.5 15 30 20
18k~28k 5/8"(Ø15.88) 1/4"(Ø6.35) 4 or 7.5 15 30 20
5/8"(Ø15.88) 3/8"(Ø9.52) 4 or 7.5 15 30 30
30k~38k 5/8"(Ø15.88) 3/8"(Ø9.52) 7.5 15 30 30
3/4"(Ø19.05) 3/8"(Ø9.52) 7.5 15 30 50
If case more than 5m
Outdoor unit
Indoor unit
A
B
Outdoor unit
Indoor unit
A
B
A
Oil trap
Outdoor unit
Indoor unit
B
I
Selection of the Best Location
Piping Length and Elevation
Install the indoor unit on the wall where the height
from the floors more than 2.3 meters.
More than 10cm More than 10cm
More
than 60cm
More than 60cm
More than 70cm