Lg As-w303dgh0 Service Manual
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Room Air Conditioner
SVC MANUAL(Exploded View)
MODEL : AS-W303DGH0(LS305HV)
CAUTION
Before Servicing the unit, read the safety precautions in General SVC manual.
Only for authorized service personnel.
Internal Use Only
http://biz.lgservice.com
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. Specification
Cooling Capacity kW
(Min~Rating~Max) Btu/h
Heating Capacity kW
(Min~Rating~Max) Btu/h
Power Input Cooling/Heating W
Running Current Cooling/Heating A
Starting Current Cooling/Heating A
EER W/W
Btu/h.W
COP W/W
Power Supply Ø / V / Hz
Power Factor %
Air Flow Rate Indoor,Max m3/min(cfm)
Outdoor,Max m3/min(cfm)
Moisture Removal l/h
Sound Level Indoor,H/M/L dB(A)+3
Outdoor,Max dB(A)+3
Refrigerant & Charge(at 7.5m) g(oz)
Additional Refrigerant Charge g/m(oz/ft)
Compressor Type
Model
Motor Type
Oil Type
Oil Charge cc
O.L.P Name
Fan(Indoor) Type
Motor Output W
Fan(outdoor) Type
Motor Type
Motor Output W
Circuit Breaker* A
Power Supply Cable No.*mm
2
Power and Transmission Cable No.*mm2+No.*mm
2
Piping Liquid Side mm(in)
Connections Gas Side mm(in)
Drain Hose O.D , I.D mm(in)
Dimension Indoor(W*H*D) mm
inch
Outdoor(W*H*D) mm
inch
Net Weight Indoor kg(lbs)
Outdoor kg(lbs)
Operation Range Cooling(Outdoor) °C(°F)
Heating(Outdoor) °C(°F)
Max. Piping Length m(ft)
Max. Elevation Difference m(ft)
Tool Code(Chassis) Indoor + Outdoor
Functions Temperature Control
Plasma Filter
Prefilter(washable/anti-fungus)
Auto Clean
CHAOS Wind(Auto Wind)
Steps, Fan/Cool/Heat
Airflow Direction Control(up&down)
Airflow Direction Control(left&right)
Remocon Type
Setting Temperature Cooling
Range Heating
Auto Operation (Micom Control)
Auto Changeover (Micom Control)
Self Diagnosis
Timer
Sleep Operation
Soft Dry Operation
Restart Delay(minute)
Deice Control(Defrost)
Hot Start
Jet Cool
Low Ambient Operation
Special Function
Network Functions Dry Contact
Network Solution(LGAP)
PI485
Models
AS-W303DGH0
3.5~7.9~7.9
12000~27000~27000
3.5~8.5~8.5
12000~29000~29000
3100/3200
13.6/14.0
13.1/14.0
2.55
8.71
2.66
1/208~230/60
97
21(742)
58(2048)
2.8
47/43/41
58
R410A 1830(64.6)
20(0.22)
SCROLL + ROTARY
5CS130XCC03 + GK141KAA
BLDC + AC
POE
480 + 350
-
Cross Flow Fan
91
Propeller
AC
140
30
3*2.08
4*0.82
6.35(1/4)
15.88(5/8)
21.5,16(0.85,0.63)
1209*346*205
47.6*13.6*8.1
800*870*320
31.5*34.3*12.6
17(37.5)
67(147.7)
-5°C~43°C (23~109.4)
-5°C~27°C(23~80.6)
30(98.4)
15(49)
SD+UE1
Thermistor
Neo
O
O
O(-)
3/4/4
Auto
Manual
Wireless LCD
18 ~ 30
16 ~ 30
O
O
24h, On/Off
O
O
2
O
O
O
O
-
-
-
-
Note:
O
: Applied, - : No relation
*
For circuit breaker rating, please conform to local standards wherever necessary.
❈
Some of functions are slightly different depending upon models.
❈
The specification may be subject to change without prior notice for purpose of
improvement.
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Copyright ©2007 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. Piping Diagrams
INDOOR UNIT OUTDOOR UNIT
HEAT
EXCHANGE
(EVAPORATOR)
HEAT
EXCHANGE
(CONDENSER)
EEV
COMPRESSOR
ACCUMU
LATOR
GAS SIDE
3-WAY VALVE
LIQUID SIDE
3-WAY VALVE
Th2
Th1
COOLING
HEATING
REVERSING
VALVE
Th5
Th6
Th7Th9
Th3
Th8
Constant
Inverter
❈ EEV : Electronic Expansion Valve
LOC. Description PCB Connector
Th1 Thermister for indoor air temperature
CN-TH1(Indoor)
Th2 Thermister for indoor pipe(in) temperature
Th3 Thermister for Indoor pipe(out) temperature CN-TH2(Indoor)
Th4 Thermister for outdoor heat sink temperature CN-TH1(Outdoor)
Th5 Thermister for outdoor pipe temperature
CN-TH2(Outdoor)
Th6 Thermister for outdoor air temperature
Th7 Thermister for outdoor discharge pipe temperature(Inverter)
CN-TH3(Outdoor)
Th8 Thermister for outdoor suction pipe temperature (Inverter)
Th9 Thermister for outdoor discharge pipe temperature(Constant) CN-TH4 (Outdoor)
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