website http://www.lgservice.com e-mail http://www.lgeservice.com/techsup.html
LG
LG Free Joint Multi Type Air Conditioner SERVICE MANUAL MODEL
Cooling Model
Heating Model
• Outdoor Unit: A2UC146FA0 A2UC186FA0 A3UC216FA0 A4UC306FA0
A2UH146FA0 A2UH186FA0 A3UH216FA0 A4UH306FA0
• Indoor Unit:
AMNC076LQL0 AMNC096LQL0 AMNC126LRL0 AMNC186LTL0 AMNC246LTL0
AMNH076LQL0 AMNH096LQL0/LQA0 AMNH126LRL0 AMNH186LTL0 AMNH246LTL0/LTA0
AMNC096AP*1 AMNC126AP*1
AMNH096AP*1 AMNH126AP*1
CAUTION • BEFORE SERVICING THE UNIT, READ THE SAFETY PRECAUTIONS IN THIS MANUAL. • ONLY FOR AUTHORIZED SERVICE PERSONNEL.
Multi Air Conditioner Service Manual
TABLE OF CONTENTS Safety Precautions......................................................................................................................................3 Details of LG Model Name..........................................................................................................................7 Product Specifications ......................................................................................................................................8 Combination Table ....................................................................................................................................11 Dimensions ........................................................................................................................................................17 Refrigeration Cycle Diagram .............................................................................................................................22 Wiring Diagram ...................................................................................................................................................26 Electronic Control Device..................................................................................................................................29 Schematic Diagram ...........................................................................................................................................32 Functions ............................................................................................................................................................35 Operation Details................................................................................................................................................39 2-way, 3-way Valve..............................................................................................................................................46 Cycle Troubleshooting Guide............................................................................................................................50 Electronic Parts Troubleshooting Guide ..........................................................................................................52 Disassembly of the parts (Indoor unit).............................................................................................................58 Exploded View & Replacement Parts List........................................................................................................61
2 Free Joint Multi Air Conditioner
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.
WARNING
This symbol indicates the possibility of death or serious injury.
CAUTION
This symbol indicates the possibility of injury or damage.
■ Meanings of symbol used in this manual are as shown below.
Be sure not to do. Be sure to follow the instruction.
WARNING ■ Installation Do not use a defective or underrated circuit breaker. Use this appliance on a dedicated circuit. • There is risk of fire or electric shock.
Install the panel and the cover of control box securely. • There is risk of fire or electric shock.
Do not let the air conditioner run for a long time when the humidity is very high and a door or a window is left open. • Moisture may condense and wet or damage furniture.
Always install a dedicated circuit and breaker. • Improper wiring or installation may cause fire or electric shock
Always ground the product.
• There is risk of fire or electric shock.
Use the correctly rated breaker or fuse. • There is risk of fire or electric shock.
Service Manual 3
Safety Precautions Do not modify or extend the power cable. • There is risk of fire or electric shock.
For installation, always contact the dealer or an Authorized Service Center. • There is risk of fire, electric shock, explosion, or injury.
Do not install, remove, or reinstall the unit by yourself (customer). • There is risk of fire, electric shock, explosion, or injury.
Do not install the product on a defective installation stand. • It may cause injury, accident, or damage to the product.
Be cautious when unpacking and installing the product. • Sharp edges could cause injury. Be especially careful of the case edges and the fins on the condenser and evaporator.
Be sure the installation area does not deteriorate with age. • If the base collapses, the air conditioner could fall with it, causing property damage, product failure, and personal injury.
■ Operational Do not touch(operate) the product with wet hands.
• There is risk of fire or electrical shock.
Do not place a heater or other appliances near the power cable. • There is risk of fire and electric shock.
4 Free Joint Multi Air Conditioner
Do allow water to run into electric parts.
• It may cause There is risk of fire, failure of the product, or electric shock.
Safety Precautions Do not store or use flammable gas or combustibles near the product. • There is risk of fire or failure of product.
If strange sounds, or smell or smoke comes from product. Turn the breaker off or disconnect the power supply cable. • There is risk of electric shock or fire.
Gasolin
Do not open the inlet grille of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.)
Be cautious that water could not enter the product.
• There is risk of physical injury, electric shock, or product failure.
• There is risk of fire, electric shock, or product damage.
Service Manual 5
Safety Precautions
CAUTION ■ Installation check for gas (refrigerant) leakage after installation or repair of product. • Low refrigerant levels may cause failure of product.
Install the drain hose to ensure that water is drained away properly. • A bad connection may cause water leakage.
Keep level even when installing the product. • To avoid vibration or water leakage.
90˚
■ Operational Use two or more people to lift and transport the product.
• Avoid personal injury.
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 • There is risk of personal injury. damage to the plastic parts of the product.
x Wa Thinner
Do not step on or put anyting on the product. (outdoor units) • There is risk of personal injury and failure of product.
6 Free Joint Multi Air Conditioner
Do not insert hands or other objects through the air inlet or outlet while the product is operated. • There are sharp and moving parts that could cause personal injury.
Details of LG Model Name
Details of LG Model Name Outdoor Unit A3UH216FA0 Development Sequence Function A: Basic Multi Type F: Free joint multi Electric Standard (Volts / Freq. / Phase) 6: 220-240V~ / 50Hz / 1Ø Capacity 14: 14,000 Btu/h 21: 21,000 Btu/h
18: 18,000 Btu/h 30: 30,000 Btu/h Model Type
C: Cooling only
H: Heat pump Outdoor / Indoor
U: Outdoor
N: Indoor
Max. No. of indoor units 3: One outdoor unit can connect with three indoor units(Reference to combination table) Making place / Refrigerant A: Changwon of korea / R410A
Indoor Unit AMNH076LQL0 Development Sequence Function & Color A: Basic L: Plasma + 2way M: Plasma + 4way B: Blue M: metal D: Wood Chassis Type Q: SQ chassis R: SR chassis
T: ST chassis P: SP1 chassis Type
L: SQ/SR/ST chassis L look A: SP1 chassis general / wide look Electric standard (Volts / Freq. /Phase) 6: 220-240V~ / 50Hz / 1Ø Capacity 07: 7,000 Btu/h 12: 12,000 Btu/h 24: 24,000 Btu/h
09: 9,000 Btu/h 18: 18,000 Btu/h Model Type
C: Cooling only H: Heat pump Outdoor / Indoor U: Outdoor N: Indoor Multi Type M: Multi Making place / Refrigerant A: Changwon of korea / R410A
Service Manual 7
Product Specifications
Product Specifications 1. Outdoor_Heat Pump A2UH146FA0
Model kcal/hr W Btu/hr kcal/hr W Btu/hr
Cooling Capacity ★
Heating Capacity ★ Input ★ Running Current ★
Cooling Heating Cooling Heating
W A
Power Supply
Ø,V,Hz L.R.A A Type Compressor A Oil Type O.L.P Type L.R.A A Type Compressor B Oil Type O.L.P Type Charge g Refrigerant Type Control Fan Motor Output W Capacitor µF/Vac Air Circulation m3/min Noise Level(Sound Press,1m) dBA(Hi/Lo) Piping Connection Liquid inch(mm) Gas inch(mm) Dimensions (W*H*D) mm Net Weight kg Power Supply Cable No.* mm2 Interunit Cable No.* mm2 ★ : See Page "Combination Table"
8 Free Joint Multi Air Conditioner
2369~3629 2755~4220 9400~14400 2520~3679 2931~4279 10000~14600 1300~1500 1300~1500 6.1~6.6 6.0 ~ 7.0 1,220-240,50 37 Rotary FVS68D(PVE) Internal 1100 (at 7.5m) R410A Capiilary Tube 27 1.5/400 40(1412) 52 1/4(6.35)*2EA 3/8(9.52)*2EA 801 x 555 x 262 45 3*2.5(Includes earth)
A2UH186FA0
A3UH216FA0
1764~4536 2016~5292 2051~5275 2345~6154 7000~18000 8000~21000 2268~4990 2268~5292 2638~5803 2638~6154 9000~19800 9000~21000 780~1900 880~2100 1200~1900 1350~2200 3.5~8.5 4.0~9.4 5.5~8.5 6.0~9.8 1,220-240,50 1,220-240,50 24 25.2 Rotary Rotary FV50S(PVE) FV50S(PVE) MRA98781-9090 MRA99150-9090 17.2 20.3 Rotary Rotary FV50S(PVE) FV50S(PVE) MRA99901-9090 MRA99282-9090 1350 (at 7.5m) 1500 (at 7.5m) R410A R410A L.E.V L.E.V 67.2 67.2 6/370 6/370 53(1872) 53(1872) 53 53 1/4(6.35)*2EA 1/4(6.35)*3EA 3/8(9.52)*2EA 3/8(9.52)*3EA 870 x 655 x 320 870 x 655 x 320 64 64 3*2.5(Includes earth) 4*0.75(Includes earth)
A4UH306FA0 2268~7560 2638~8792 9000~30000 2520~8316 2931~9671 10000~33000 1100~3250 1310~3600 4.8~15 6.0~16.5 1,220-240,50 35.5 Rotary FV50S(PVE) Internal 25.2 Rotary FV50S(PVE) MRA99150-9090 2500 (at 7.5m) R410A L.E.V 41 2/370 63(2225) 54/51 1/4(6.35)*4EA 3/8(9.52)*4EA 870 x 1060 x 320 80 3*3.5(Includes earth)
Product Specifications
2. Outdoor_Cooling Only Model Cooling Capacity ★ Input ★ Running Current ★ Power Supply
Cooling Cooling
kcal/hr W Btu/hr W A Ø,V,Hz A
L.R.A Type Compressor A Oil Type O.L.P Type L.R.A A Type Compressor B Oil Type O.L.P Type Charge g Refrigerant Type Control Fan Motor Output W Capacitor µF/Vac Air Circulation m3/min Noise Level(Sound Press,1m) dBA(Hi/Lo) Liquid inch(mm) Piping Connection Gas inch(mm) Dimensions (W*H*D) mm Net Weight kg Power Supply Cable No.* mm2 Interunit Cable No.* mm2
A2UC146FA0 2369~3629 2755~4220 9400~14400 1300~1500 6.0~7.0 1,220-240,50 37 Rotary FVS68D(PVE) Internal 1050 (at 7.5m) R410A Capiilary Tube 27 1.5/400 40(1412) 52 1/4(6.35)*2EA 3/8(9.52)*2EA 801 x 555 x 262 45 3*2.5(Includes earth)
A2UC186FA0 A3UC216FA0 1764~4536 2016~5292 2051~5275 2345~6154 7000~18000 8000~21000 780~1900 880~2100 3.5~8.5 4.0~9.4 1,220-240,50 1,220-240,50 24 25.2 Rotary Rotary FV50S(PVE) FV50S(PVE) MRA98781-9090 MRA99150-9090 17.2 20.3 Rotary Rotary FV50S(PVE) FV50S(PVE) MRA99901-9090 MRA99282-9090 1350 (at 7.5m) 1500 (at 7.5m) R410A R410A L.E.V L.E.V 67.2 67.2 6/370 6/370 53(1872) 53(1872) 53 53 1/4(6.35)*2EA 1/4(6.35)*3EA 3/8(9.52)*2EA 3/8(9.52)*3EA 870 x 655 x 320 870 x 655 x 320 64 64 3*2.5(Includes earth) 4*0.75(Includes earth)
A4UC306FA0 2268~7560 2638~8792 9000~30000 1100~3250 4.8~15 1,220-240,50 35.5 Rotary FV50S(PVE) Internal 25.2 Rotary FV50S(PVE) MRA99150-9090 2500 (at 7.5m) R410A L.E.V 41 2/370 63(2225) 54/51 1/4(6.35)*4EA 3/8(9.52)*4EA 870 x 1060 x 320 80 3*3.5(Includes earth)
★ : See Page "Combination Table"
Service Manual 9
Product Specifications
3. Indoor_Heat Pump Wall Mounted
Indoor Unit Type Model
AMNH076LQL0 kcal/hr W Btu/hr kcal/hr W Btu/hr m3/min
AMNH096LQL0 AMNH246LTL0 AMNH126LRL0 AMNH186LTL0 AMNH096AP*1 AMNH126AP*1 AMNH096LQA0 AMNH246LTA0
4536 5796 2267 2772 5275 6741 2638 3224 18000 23000 9000 12000 4990 6426 2495 3049 Nominal Heating Capacity ★ 5803 7473 2901 3546 19800 25500 9900 13200 Air Circulation 13 14 7.5 8.5 Setting temperature Cooling 18~30 ˚C range Heating 16~30 Output W 8 8 14 22 29 24 24 Fan Motor Capacitor µF/Vac 0.9 / 400 0.9 / 400 0.9 / 400 2.0 / 370 2.0 / 370 Noise Level(Sound Press, 1m) H/M/L dBA 35 / 32 / 29 37 / 33 / 31 39 / 36 / 34 42 / 39 / 36 46 / 43 / 39 38 / 35 /32 43 / 40 / 33 Temperature controller Thermistor Thermistor Thermistor Thermistor Thermistor Thermistor Thermistor Dehumidification Rate l/h 1 1.2 1.7 1.9 2.2 1 1.2 Dimensions (W x H x D) mm 820x260 x155 820x260x155 900x285x156 1080x314x182 1080x314x182 570x568x137 570x568x137 Net Weight kg 7 7 8 12 12 9 9 Liquid inch(mm) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) Piping Connection Gas inch(mm) 3/8 (9.52) 3/8 (9.52) 3/8 (9.52) 1/2 (12.7) 1/2 (12.7) 3/8 (9.52) 3/8 (9.52) Drain hose(OD Ø) mm 20 20 20 20 20 20 20 Front Panel Color " * " Position M:Metal, B:Blue, D:Wood Nominal Cooling Capacity ★
1764 2051 7000 1940 2257 7700 5.5
Art Cool
2267 2638 9000 2495 2901 9900 6.0
2772 3224 12000 3049 3546 13200 9
★ : See Page "Combination Table"
4. Indoor_Cooling Only Indoor Unit Type Model
Wall Mounted Art Cool AMNC076LQL0 AMNC096LQL0 AMNC126LRL0 AMNC186LTL0 AMNC246LTL0 AMNC096AP*1 AMNC126AP*1
4536 5796 2267 2772 5275 6741 2638 3224 18000 23000 9000 12000 13 14 7.5 8.5 Air Circulation m3/min 18~30 Setting temperature range(cool) ˚C 8.4 8.4 14.4 22 29 24 24 Output W Fan Motor 0.9 / 400 0.9 / 400 0.9 / 400 2.0 / 370 2.0 / 370 Capacitor µF/Vac 35 / 32 / 29 37 / 33 / 31 39 / 36 / 34 42 / 39 / 36 46 / 43 / 39 38 / 35 /32 43 / 40 / 33 Noise Level(Sound Press, 1m) H/M/L dBA Thermistor Thermistor Thermistor Thermistor Thermistor Thermistor Thermistor Temperature controller 1 1.2 1.7 1.9 2.2 1 1.2 Dehumidification Rate l/h 820x260x155 820x260x155 900x285x156 1080x314x182 1080x314x182 570x568x137 570x568x137 Dimensions (W x H x D) mm 7 7 8 12 12 9 9 Net Weight kg 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) 1/4 (6.35) Liquid inch(mm) Piping Connection 3/8 (9.52) 3/8 (9.52) 1/2 (12.7) 1/2 (12.7) 3/8 (9.52) 3/8 (9.52) Gas inch(mm) 3/8 (9.52) 20 20 20 20 20 20 20 Drain hose(OD Ø) mm M:Metal, B:Blue, D:Wood Front Panel Color " * " Position Nominal Cooling Capacity ★
kcal/hr W Btu/hr
★ : See Page "Combination Table"
10 Free Joint Multi Air Conditioner
1764 2051 7000 5.5
2267 2638 9000 6.0
2772 3224 12000 9
Combination Table
Combination Table 1. A2UH146FA0 Cooling Operation 1 UNIT 2 UNIT
Capacity
Indoor Unit Combination Index(k Btu/h) A
B
7 7
7
C
D
Unit-A Unit-B Unit-C Unit-D Total Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 14
9400 7200
9400 14400
7200
Input (W)
Current EER (A) (Btu/h.w)
1350 1450
6.1 6.6
7 9.9
Heating Operation 1 UNIT 2 UNIT
Capacity COP Indoor Unit Combination Input Current Index(k Btu/h) Unit-A Unit-B Unit-C Unit-D Total (W) (A) (Btu/h.w) (w/w) A B C D Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 7
7 14
7
10000 7300
10000 14600
7300
1500 1300
7 6
6.7 11.2
2 3.3
2. A2UH186FA0 Cooling Operation
A 1 UNIT
2 UNIT
Capacity
Indoor Unit Combination Index(k Btu/h) 7 9 12 7 7 9 7
B
7 9 9 12
C
D
Unit-A Unit-B Unit-C Unit-D Total Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 9 12 14 16 18 19
7000 9500 11000 7000 7000 9000 7000
7000 9000 9000 11000
7000 9500 11000 14000 16000 18000 18000
Input (W)
Current EER (A) (Btu/h.w)
780 1100 1100 1900 1900 1900 1900
3.5 5 5 8.5 8.5 8.5 8.5
9 8.6 10 7.4 8.4 9.5 9.5
Heating Operation
1 UNIT
2 UNIT
Capacity COP Indoor Unit Combination Input Current Index(k Btu/h) Unit-A Unit-B Unit-C Unit-D Total (W) (A) (Btu/h.w) (w/w) A B C D Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 9 12 7 7 9 7
7 9 9 12
7 9 12 14 16 18 19
9000 10500 12100 7700 7700 9900 7700
7700 9900 9900 12100
9000 10500 12100 15400 17600 19800 19800
1300 1250 1200 1900 1900 1900 1900
6 5.6 5.5 8.5 8.5 8.5 8.5
6.9 8.4 10.1 8.1 9.3 10.4 10.4
2 2.5 3 2.4 2.7 3.1 3.1
Service Manual 11
Combination Table
3. A3UH216FA0 Cooling Operation
Capacity
Indoor Unit Combination Index(k Btu/h) A
B
7 9 1 UNIT 12(Art) 12 7 7 7 9 9 9 2 UNIT 7 12(Art) 7 12 9 12 7 7 3 UNIT 7 7
C
7 9
D
Unit-A Unit-B Unit-C Unit-D Total Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 9 12 12 14 16 18 19 19 21 21 23
8000 9500 11000 12000 8400 8000 9500 8000 8000 9000 7000 6400
8400 10000 9500 11000 12000 12000 7000 6400
7000 8200
8000 9500 11000 12000 16800 18000 19000 19000 20000 21000 21000 21000
Input (W)
Current EER (A) (Btu/h.w)
880 900 1150 1150 2100 2100 2100 2100 2100 2100 2100 2100
4 4.1 5.1 5.1 9.4 9.4 9.4 9.4 9.4 9.4 9.4 9.4
9.1 10.6 9.6 10.4 8 8.6 9 9 9.5 10 10 10
Heating Operation
Capacity COP Indoor Unit Combination Input Current Index(k Btu/h) Unit-A Unit-B Unit-C Unit-D Total (W) (A) (Btu/h.w) (w/w) A B C D Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr)
7 9 1 UNIT 12(Art) 12 7 7 7 9 9 9 2 UNIT 7 12(Art) 7 12 9 12 7 7 3 UNIT 7 7
7 9
7 9 12 12 14 16 18 19 19 21 21 23
9000 10450 12100 13200 9200 8800 10000 8800 8400 9000 7000 6400
12 Free Joint Multi Air Conditioner
9200 11000 10000 12100 12600 12000 7000 6400
7000 8200
9000 10450 12100 13200 18400 19800 20000 20900 21000 21000 21000 21000
1350 1350 1400 1400 2200 2200 2200 2200 2200 1900 1900 1900
6 6.2 6.2 6.2 9.8 9.8 9.8 9.8 9.8 8.5 8.5 8.5
6.7 7.7 8.6 9.4 8.4 9 9.1 9.5 9.5 11.1 11.1 11.1
2 2.3 2.5 2.8 2.5 2.6 2.7 2.8 2.8 3.2 3.2 3.2
Combination Table
4. A4UH306FA0 Combination (Indoor Unit) A
1 Unit
2 Unit
3 Unit
4 Unit
7 9 12 18 24 7 7 7 7 7 9 9 9 9 12 12 7 7 7 7 7 7 7 9 9 9 7 7 7 7
B
7 9 12 18 24 9 12 18 24 12 18 7 7 7 7 9 9 12 9 9 12 7 7 7 7
C
7 9 12 18 9 12 12 9 12 12 7 7 7 9
D
7 9 12 9
Cooling mode
Total Unit-A (Btu/h) 7 9 12 18 24 14 16 19 25 31 18 21 27 33 24 30 21 23 26 32 25 28 31 27 30 33 28 30 33 32
9000 10000 12000 18000 23000 8000 7500 7000 9000 7000 9000 11000 10000 8000 13000 12000 9000 9000 8000 6500 9000 7500 7000 10000 9000 8000 7500 7000 6500 6500
Unit-B
8000 9500 12000 19000 22000 9000 14000 18000 21500 13000 18000 9000 9000 8000 6500 10000 9500 11500 10000 9000 11000 7500 7000 6500 6500
Unit-C
9000 11000 12000 17000 10000 12000 11500 10000 12000 11000 7500 7000 6500 8500
Unit-D
7500 9000 10500 8500
Total Power Current(A) (Btu/h) Consumtion(W) 9000 10000 12000 18000 23000 16000 17000 19000 28000 29000 18000 25000 28000 29500 26000 30000 27000 29000 28000 30000 29000 29000 30000 30000 30000 30000 30000 30000 30000 30000
1100 1130 1180 1900 3000 1850 1900 1920 3150 3250 1900 3000 3150 3250 3100 3250 3150 3150 3250 3250 3250 3150 3250 3250 3250 3250 3200 3250 3250 3250
4.8 5 5.2 9 13.5 8.8 9 9.1 14.5 15 9 13.5 14.5 15 14 15 14.5 14.5 15 15 14.5 15 15 15 15 15 14.5 15 15 14.7
Service Manual 13
Combination Table
Combination (Indoor Unit) A
1 Unit
2 Unit
3 Unit
4 Unit
7 9 12 18 24 7 7 7 7 7 9 9 9 9 12 12 7 7 7 7 7 7 7 9 9 9 7 7 7 7
B
7 9 12 18 24 9 12 18 24 12 18 7 7 7 7 9 9 12 9 9 12 7 7 7 7
C
7 9 12 18 9 12 12 9 12 12 7 7 7 9
D
7 9 12 9
Heating mode
Total Unit-A (Btu/h) 7 9 12 18 24 14 16 19 25 31 18 21 27 33 24 30 21 23 26 32 25 28 31 27 30 33 28 30 33 32
14 Free Joint Multi Air Conditioner
10000 11000 12000 18000 26400 8800 8200 7000 9900 7700 9900 12100 11000 8800 14300 13200 9900 9900 8800 7100 9900 8200 7700 11000 9900 8800 8200 7700 7100 7100
Unit-B
8800 10300 12000 20900 23000 9900 15400 19800 22500 14300 19800 9900 9900 8800 7100 11000 10400 12600 11000 9900 12100 8200 7700 7100 7100
Unit-C
9900 11000 13200 18700 11000 13200 12600 11000 13200 12100 8200 7700 7100 9300
Unit-D
8200 9900 11700 9300
Total Power Current(A) (Btu/h) Consumtion(W) 10000 11000 12000 18000 26400 17600 18500 19000 30800 30700 19800 27500 30800 31300 28600 33000 29700 30800 30800 32900 31900 31800 32900 33000 33000 33000 32800 33000 33000 32800
1350 1470 1310 2050 3600 1950 1950 2050 3360 3300 2050 3360 3360 3360 3360 3360 3360 3400 3360 3360 3360 3360 3360 3360 3360 3360 2950 2950 3000 2950
6.2 6.5 6 9.7 16.5 9.3 9.3 9.7 15.5 15 9.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 15.5 13.5 13.5 14 13.5
Combination Table
5. A2UC146FA0 Cooling Operation 1 UNIT 2 UNIT
Capacity
Indoor Unit Combination Index(k Btu/h) A
B
7 7
7
C
D
Unit-A Unit-B Unit-C Unit-D Total Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 14
10000 7300
10000 14600
7300
Input (W) 1500 1300
Current COP (A) (Btu/h.w) 7 6
6.7 11.2
6. A2UC186FA0 Cooling Operation
A 1 UNIT
2 UNIT
Capacity
Indoor Unit Combination Index(k Btu/h) 7 9 12 7 7 9 7
B
C
D
Unit-A Unit-B Unit-C Unit-D Total Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 9 12 14 16 18 19
7 9 9 12
7000 9500 11000 7000 7000 9000 7000
7000 9500 11000 14000 16000 18000 18000
7000 9000 9000 11000
Input (W) 780 1100 1100 1900 1900 1900 1900
Current COP (A) (Btu/h.w) 3.5 5 5 8.5 8.5 8.5 8.5
9 8.6 10 7.4 8.4 9.5 9.5
7. A3UC216FA0 Cooling Operation
Capacity
Indoor Unit Combination Index(k Btu/h) A
B
7 9 1 UNIT 12(Art) 12 7 7 7 9 9 9 2 UNIT 7 12(Art) 7 12 9 12 7 7 3 UNIT 7 7
C
7 9
D
Unit-A Unit-B Unit-C Unit-D Total Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 9 12 12 14 16 18 19 19 21 21 23
8000 9500 11000 12000 8400 8000 9500 8000 8000 9000 7000 6400
8400 10000 9500 11000 12000 12000 7000 6400
7000 8200
8000 9500 11000 12000 16800 18000 19000 19000 20000 21000 21000 21000
Input (W) 880 900 1150 1150 2100 2100 2100 2100 2100 2100 2100 2100
Current COP (A) (Btu/h.w) 4 4.1 5.1 5.1 9.4 9.4 9.4 9.4 9.4 9.4 9.4 9.4
9.1 10.6 9.6 10.4 8 8.6 9 9 9.5 10 10 10
Service Manual 15
Combination Table
8. A4UC306FA0 Cooling Operation
A
1 UNIT
2 UNIT
3 UNIT
4 UNIT
Capacity
Indoor Unit Combination Index(k Btu/h) 7 9 12 18 24 7 7 7 7 7 9 9 9 9 12 12 7 7 7 7 7 7 7 9 9 9 7 7 7 7
B
7 9 12 18 24 9 12 18 24 12 18 7 7 7 7 9 9 12 9 9 12 7 7 7 7
C
7 9 12 18 9 12 12 9 12 12 7 7 7 9
D
7 9 12 9
Unit-A Unit-B Unit-C Unit-D Total Total (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) (Btu/hr) 7 9 12 18 24 14 16 19 25 31 18 21 27 33 24 30 21 23 26 32 25 28 31 27 30 33 28 30 33 32
16 Free Joint Multi Air Conditioner
9000 10000 12000 18000 23000 8000 7500 7000 9000 7000 9000 11000 10000 8000 13000 12000 9000 9000 8000 6500 9000 7500 7000 10000 9000 8000 7500 7000 6500 6500
8000 9500 12000 19000 22000 9000 14000 18000 21500 13000 18000 9000 9000 8000 6500 10000 9500 11500 10000 9000 11000 7500 7000 6500 6500
9000 11000 12000 17000 10000 12000 11500 10000 12000 11000 7500 7000 6500 8500
7500 9000 10500 8500
9000 10000 12000 18000 23000 16000 17000 19000 28000 29000 18000 25000 28000 29500 26000 30000 27000 29000 28000 30000 29000 29000 30000 30000 30000 30000 30000 30000 30000 30000
Input (W) 1100 1130 1180 1900 3000 1850 1900 1920 3150 3250 1900 3000 3150 3250 3100 3250 3150 3150 3250 3250 3250 3150 3250 3250 3250 3250 3200 3250 3250 3250
Current COP (A) (Btu/h.w) 4.8 5 5.2 9 13.5 8.8 9 9.1 14.5 15 9 13.5 14.5 15 14 15 14.5 14.5 15 15 14.5 15 15 15 15 15 14.5 15 15 14.7
8.2 8.8 10.2 9.5 7.7 8.6 8.9 9.9 8.9 8.9 9.5 8.3 8.9 9.1 8.4 9.2 8.6 9.2 8.6 9.2 8.9 9.2 9.2 9.2 9.2 9.2 9.4 9.2 9.2 9.2
Dimensions
Dimensions 1. Indoor Unit • Model: SQ/SR/ST chassis H
D W
Installation plate
SQ Ch. SR Ch. ST Ch.
Capacity 7K/9K 12K 18K/24K
W 824 900 1080
H 260 285 314
D 156 156 182
• Model: SP 1 chassis Hanger Hole W
D
H
Fix Hole
Pipe Hole
SP1 Ch.
Capacity 9K/12K
W 570
H 568
D 137
Service Manual 17
Dimensions
2. Outdoor Unit 2-1 A2UC146FA0, A2UH146FA0
L1
Gas side 3-way valve
L5
L10 L11 L11 L11
H
L4
L3
D
L2
W
L7
L6
MODEL DIM
L8
Liquid side 2-way valve
L9
A2UC146FA0, A2UH146FA0
W
mm
801
H
mm
555
D
mm
262
L1
mm
339
L2
mm
300
L3
mm
37
L4
mm
543.6
L5
mm
11.4
L6
mm
591
L7
mm
105
L8
mm
105
L9
mm
72.5
L10
mm
74.5
L11
mm
79
18 Free Joint Multi Air Conditioner
Dimensions
2-2. A2UC186FA0, A2UH186FA0
L1
L2
L3
D
W
L10 L11 L11L11
L4 H L5
Gas side 3-Way valve
L7
L6
MODEL DIM
L8
Liquid side 2-Way valve
L9
A2UC186FA0, A2UH186FA0
W
mm
870
H
mm
655
D
mm
320
L1
mm
360
L2
mm
340
L3
mm
25
L4
mm
630
L5
mm
25
L6
mm
546
L7
mm
160
L8
mm
160
L9
mm
44
L10
mm
64.5
L11
mm
50
Service Manual 19
Dimensions 2-3 A3UC216FA0, A3UH216FA0
L5
H
L1
L10 L11 L11 L11 L11 L11
L4
L3
D
L2
W
L7
L6
MODEL DIM
L8
Gas side 3-way valve
Liquid side 2-way valve
L9
A3UC216FA0, A3UH216FA0
W
mm
870
H
mm
655
D
mm
320
L1
mm
360
L2
mm
340
L3
mm
25
L4
mm
630
L5
mm
25
L6
mm
546
L7
mm
160
L8
mm
160
L9
mm
44
L10
mm
64.5
L11
mm
50
20 Free Joint Multi Air Conditioner
Dimensions 2-4 A4UC306FA0, A4UH306FA0
L5
L4
H
L1
L10 L11 L11 L11 L11 L11 L11 L11
L3
D
L2
W
Gas side 3-way valve
Liquid side 2-way valve
L9 L7
L6
MODEL DIM
L8
A4UC306FA0, A4UH306FA0
W
mm
870
H
mm
1038
D
mm
320
L1
mm
360
L2
mm
340
L3
mm
25
L4
mm
1035
L5
mm
25
L6
mm
546
L7
mm
160
L8
mm
160
L9
mm
44
L10
mm
64.5
L11
mm
50
Service Manual 21
Refrigeration Cycle Diagram
Refrigeration Cycle Diagram 1. A2UH146FA0 Indoor Side
Outdoor Side
4- WAY Valve
B
A
COMP
2. A2UC146FA0 Indoor Side
A
Outdoor Side
B
COMP
ex)
Capillary Solenoid Valve L.E.V 3-Way Valve 2-Way Valve
22 Free Joint Multi Air Conditioner
Refrigeration Cycle Diagram
3. A2UH186FA0 Indoor Side
Outdoor Side 4- WAYValve
B Accum.
A
COMP A
COMP B
4. A2UC186FA0 Indoor Side
B Accum.
A
Outdoor Side
COMP A
COMP B
ex)
Capillary Solenoid Valve L.E.V 3-Way Valve 2-Way Valve
Service Manual 23
Refrigeration Cycle Diagram
5. A3UH216FA0 Indoor Side
Outdoor Side 4- WAY Valve
B
A Accum.
C
COMP A
COMP B
6. A3UC216FA0 Indoor Side
B
A Accum.
C
Outdoor Side
COMP A
COMP B
ex)
Capillary Solenoid Valve L.E.V 3-Way Valve 2-Way Valve
24 Free Joint Multi Air Conditioner
Refrigeration Cycle Diagram
7. A4UH306FA0 Indoor Side
Outdoor Side
4- WAY Valve
C
B
A Accum.
D
COMP A
COMP B
8. A4UC306FA0 Indoor Side
C
B
A Accum.
D
Outdoor Side
COMP A
COMP B
ex)
Capillary Solenoid Valve L.E.V 3-Way Valve 2-Way Valve
Service Manual 25
Wiring Diagram
Wiring Diagram Indoor Unit 1. AMNH076LQL0, AMNH096LQL0, AMNH126LRL0, AMNH186LTL0, AMNH246LTL0, AMNC076LQL0, AMNC096LQL0, AMNC126LRL0, AMNC186LTL0, AMNC246LTL0, AMNH096LQA0, AMNH246LTA0 DC PCB ASM
CN-MOTOR
CN-U/D CN-TH1 CN-TH2
AC PCB ASM
THERMISTOR(OUT-PIPE) THERMISTOR(IN-PIPE) THERMISTOR(ROOM)
ZNR
CN-POWER
FUSE 250V 2A
3854A20135W
CN-ACDC2
ZNR
CN-ACDC1
CN-MOTOR1
FAN MOTOR
DC PWB ASM CN-GND1
AC PWB ASM WH BK YL RD
1(L) 2(N)
CN-POWER
RD
BL
BR
GN/YL
Z
3
FUSE 250V 3.15A
CN-D1(WH) CN-D2(WH)
4
TO OUTDOOR UNIT
SAFETY S/W SAFETY S/W
3854A20135Y
26 Free Joint Multi Air Conditioner
CN-HVB(BL) CN-LR2(WH) CN-LR1(WH) CN-UD(BL) CN-TH1CN-TH2
2. AMNH096APB1, AMNH096APM1, AMNH096APD1, AMNH126APB1, AMNH126APM1, AMNH126APD1, AMNC096APB1, AMNC096APM1, AMNC096APD1, AMNC126APB1, AMNC126APM1, AMNC126APD1 THERMISTOR(OUT-PIPE) THERMISTOR(IN-PIPE) THERMISTOR(ROOM)
STEP MOTOR
STEP MOTOR STEP MOTOR
CONNECT PCB ASM
STEP MOTOR
RD
H.V. ASM BK
FORCE S/W
PLASMA AIR CLEAN
DISPLAY PCB ASM
Wiring Diagram
Outdoor Unit 1. A2UC146FA0
2. A2UH146FA0
OUTDOOR WIRING DIAGRAM
OUTDOOR WIRING DIAGRAM
BK
BK
CM BL
MAIN PCB ASSY
BR
MAIN POWER
BK
BL
FUSE 250V T3.15A
CN-TH1
BK
WH WH
(WH)
PIPE SENSOR
(RD)
BL
(BK)
BK
BL BK
RD
BK
A S/V
BK
B S/V
(BL)
WH
FMo
T/B1 RD
YL
RD
P/NO : 3854A20375B
3. A2UC186FA0
BL
(RD)
T/B2
F
CM
BK
3(A) 3(B)
B-UNIT
C
(WH) CN-H,L,S,4
B/P S/V
C
BK BR
(WH) CN-COM
B S/V
BK
BK
CN-POWER (WH)
(BK)
BK
A S/V
BK
BL
(WH)
TO INDOOR UNIT
BL
BK
(BL)
CN-POWER (WH)
BK
BL BK
(RD)
FUSE 250V T3.15A
RD
Co H
RD
MAIN PCB ASSY
BR
2(N) A-UNIT
S
R
WH
T/B1 RD
YL
RD WH
FMo
(WH) CN-H,L,S,4
(WH)
TO INDOOR UNIT
3(A)
2(N) 1(L)
BL BK
1(L)
CN-COM
BK
BK
(WH) CN-COM
BL
3(B)
B-UNIT
F
(RD)
WH
2(N) A-UNIT
C
R
CN-COM
1(L)
C
BK BR (RD)
2(N)
RD
CN-COMP
CN-COMP
MAIN POWER
1(L)
S
Co H
BK
B/P S/V
BK
4WV
T/B2
P/NO : 3854A20375A
4. A2UH186FA0
Service Manual 27
Wiring Diagram
5. A3UC216FA0
6. A3UH216FA0
7. A4UC306FA0
8. A4UH306FA0
28 Free Joint Multi Air Conditioner
Electronic Control Device
Electronic Control Device Indoor Unit AMNC076LQL0, AMNC096LQL0, AMNC126LRL0, AMNC186LTL0, AMNC246LTL0, AMNH076LQL0, AMNH096LQL0, AMNH126LRL0, AMNH186LTL0, AMNH246LTL0, AMNH096LQA0, AMNH246LQA0 • MAIN P.C.B DC ASM
• MAIN P.C.B AC ASM
Service Manual 29
Electronic Control Device AMNH096APB1, AMNH096APM1, AMNH096APD1, AMNH126APB1, AMNH126APM1, AMNH126APD1, AMNC096APB1, AMNC096APM1, AMNC096APD1, AMNC126APB1, AMNC126APM1, AMNC126APD1 • MAIN P.C.B DC ASM
CN_D1
CN_D2
IC01M
CN_ACDC2 L4
L5 Q01D
CN_CC
C01H
OR2H
C04Y
CN_LEV CN_COMM
IC1
C02A IC01A
R01P
D02Y
VR01Y
D01Y
C02Y
R09D R02A R01A
C03Y
R04Y
CN_COMM
R08Y
VR01Y
OSCO1B
C07Y
C05Y
U01Y
C03Y
C01A
49
R01B L01X C01X L02X C04Y
ZNR01Y
U04Y
C09Y
C08Y
R02Y
U03Y
C03L
R01L C01L R02L Q02V R07V
OSC01B
IC1
R06Y
16 U02Y
Q01V
OR1H
1
TRANS01Y
U02Y
17
32 33
LED
C03G R13G C04G R14G
IC01A
R21H
48
C02H
C02A
U03Y
U04Y
BZ01E
TRANS01Y
OR3H
CN_LEV
R22H C01E
64
R01Y
R03Y
R10G R11G
C06Y
R05Y
Q01V
R23H
L3
R08D R06V R05V
LED
U05Y
C01G
C01E
R04E
C01Y
R04G
R07Y
CN_TH1
R05G
C02G
R01G
R02H
Q02E Q01E PCB : 6870A20016B ASM : 6871A20381
CN_TH2
OJ02H R28H
SW_ROOM
OJ01H R27H
SW_GROUP
CN_TH1
CN_CC
R04D
CN_LR2
R14D R30H
C08V
MICOM
C03L
R01H
C12H
R03D
R03E
Q01D
CN_D2
IC03M
R04H R05H R06H
SW(GROUP)
IC02MCN_D1
CN_LR1
BZ01E
R07G R08G
R02G
CN_UD
CN_HVB
R09G R12G
R03G R06G
R03H
SW(ROOM)
R21G
R22G R23G R24G
C03H
CN_ACDC2
R05D
Q03E
C10D
R02E
R13D R29H
CN_LR2(WH)
CN_HVB(BL)
C11H
CN_UD(BL)
R01E
C13H R11H R12H
C02V R08V C03V R09V
CN_TH2
C06V
C08V C07V
R02V
R03V
CN_LR1(WH)
• MAIN P.C.B AC ASM
R06D
R01D D10R
1
D6C05D 0R
D20D D02D
9 8 7
5 6
K10R
D01K
K10C
7
K20R
8
K30R
CN_OUT
9
D10D
POWERMODULE
K50R K20CI IC02K
R05K
30 Free Joint Multi Air Conditioner
K40R K10Q
C02D D20C
R11D
Q05G D50C
IC05D
D50CI
2L
D80C
1L
C06D
IC08D D80CI D30C
IC06D D60CI
L2
D70R
L1 6
D02K K20D
D01D
D60C
K10D
250V-T3.15A TUO_NC
D05DD50D
IC07D D70CI
5
K10CI IC01K
R15DD51R CN_ACDC1
3
3
R02D D20R
21
D71R
31
1
PCB : 6870A20016A ASM : 6871A20381
J40C C04J
D04D D40D
G50Q
D21R
CY3 3YC
D21C
D11R
+
DNG-NC CN-GND
A51.3T-V052
R18D
D11C
ELUDOMREWOP
CY2 2YC
FUSE ESUF
G40Q
R16DD61R C11D
ZD01D
D31C
ZNR01N N10RNZ
D80R
D10DZ
C13D D01R
R17D
D10C
~
1YC
CY1
11
C09D11 D90C
~
-
N10C C01N
1ROTOM_NC CN_MOTOR1
CN_MOTOR2 2ROTOM_NC
CTN
R10D
4YC CY4
DNG-NC CN-GND
IC03D D30CI
NTC
C01D
R12D
D06D D60D
C12D Q04G
BD01D D10DB
13
N30C C03N
NF02N N20FN
12
NF01N 2NOC C02N N10FN
D70C
C07D
D40C D40CI IC04D
C03D
1CDCA_NC
Electronic Control Device
Outdoor Unit A2UC146FA0, A2UH146FA0, A2UC186FA0, A2UH186FA0, A3UC216FA0, A3UH216FA0, A4UC306FA0, A4UH306FA0 • MAIN P.C.B ASM
FUSE
NF01J
AC_L
4
CN_COMP
R01J
ZNR01J
CN_TEST
TEST_S/W
CN_LEV1
AR02Z
CN_LEV2
Q01Z
J06
J05
C
O J03 M
J04
IM
J01
J02
J19
M50CI
C05M
M30CI
AR01Z J07
M20C
M10C
M40C
Z10RA
IC03M
J17 IC04M CN_LEV5
5VEL_NC
4VEL_NC 70J
80J
71J
CN_LEV6
J16
CN_CENTRAL
B40R
SUCTION
J11
J10
C09D
NF02J
R03J
ZD02D
C04D
J18
R35K
ZD08D
ZD07D R36K
R33K
R32K
ZD06D R34K
R29K
R31K
R28K
ZD05D R30K
ZD04D R27K
IC03D
D02D D12K
D11K
D09K
D10K
D08K
D07K R26K
R25K ZD03D
61J
2VEL_NC
Z10Q
LARTNEC_NC
B50R
OUT
M60C
1
55
54
B70R
H90R
IC12K
PIPE
M50C
06
B60R
K10R
K20R
CN_TH2
OSC01B
Z20RA
H1RO K10C
K20C
H80R
IC11K
6VEL_NC
R01T 1VEL_NC
B20R
K60R
K01R K90R
K50R K40C
K41R K31R
53 46
H40C
CN_TH1
TSET_NC
B10R B10CSO
H20C H30C
2HT_NC
IC05M R02A
IC01A
1
05
C03M
LED01T
J15
A10R
04
M40CI
C01A
RY_4WAY
RY_SV J13
51J
T20R
A10CI
52
W/S_TSET
X10C
T10DEL
TJ09 10R
51
60J
50J
K30C
K50C K60C 40J
K80C K81R
H10C
T30R
T40R
A30R
D13K
11J
01J
D30CI
K70C 30J
20J
IC10K
H60R
IC09K
H70R
H40R
IC08K
H50R
IC07K
A20R
41JRY_LIQ
YRY_HOT AW4_YR
5
PCB : 6870A90157A ASM : 6871A20414 2003.09.15
M30C
H20R
IC06K
H30R
H10R
K42R
K11CI
IC05K
K90C
K22R K12R
K71R K01C
K21C
81J
IC02D
K21CI
K01CI
K80CI
K02R
K90CI
K61R
K70CI
K21R
K60CI
K50CI
K80R
K40CI
K30CI
IC04K
90J
02
C06D
K32R
K91R
K51R
K11R
K70R
K40R
K10CI
K20CI
IC03K
B30R
C07D D90C
01
J30R
D20DZ
K53R
D80DZ
K63R D70DZ
K33R
K23R
K43R D60DZ
K13R
K92R
K03R D50DZ
K82R
K30R
IC02K
10J 91J
J20R
IC01D D20CI
K72R D40DZ
K62R
K52R D30DZ
A20C
D40C
VS_YR RY_FAN_2L
31J
03
D10CI
1HT_NC
IC01K
K11C
D60C
D30C
K21D
K11D
K01D
K90D
K80D
K70D
K10DR08J Z
M20CI
A10C
D50C
SNART/S
M10CI
D01C
D70C J20FN
D30D
D20D
K31D
D14K K41D
ZD02K ZD01K
K20DZ
D80C
D10C
S/TRANS
MOC_NC
H2_RY_FAN_1H NAF_YR TOH_YRY_FAN_2H R L2_NARY_FAN_1L F_YR QIL_YR
21J
D10CTN
CN_COM
C07M
M70C
J14 L1_NAF_YR
H1_NAF_YR
12J
C01D
1PMOC_YR
J12
NTC01D
J08
2PMOC_YR
L
CN_POWER N_CA AC_N
3
RY_COMP2
REWOP_NC
J21
4
3
D03D
R06J R07J
ESUF
4
R04J R05J
J10C
J10RNZ
J10R
J70R
J60R
J50R
J40R
N
D01DJ20C
C02A
CN_SV YAW4
VS
QIL
TOH
2NAF_NC
RY_COMP1 C01J
J80R
4WAY
VS_NC 1NAF_NC
PMOC_NC
J10FN
C02J
D10D
SV
CN_FAN2
CN_FAN1
L_CA
LIQ
HOT
B
A
C01M 3VEL_NC
CN_LEV4
CN_LEV3
DISCHARGE
Display P.C.B ASM
Service Manual 31
Schematic Diagram
Schematic Diagram Indoor Unit 1-1. SQ/SR/ST Chassis
32 Free Joint Multi Air Conditioner
Schematic Diagram 1-2. SP 1 Chassis
Service Manual 33
Schematic Diagram
Outdoor Unit
• A2UC146FA0, A2UC186FA0, A3UC216FA0, A4UC306FA0, A2UH146FA0, A2UH186FA0, A3UH216FA0, A4UH306FA0
DC 5V
DC 12V
R04H 12.1K 1%
R06H 6.2K 1%
R08H 18K 1%
12
11
10
9
16
15
14
13
2
3
4
5
6
7
8
1
2
3
4
R02H 6.2K 1%
C01H~C04H 0.01 25V
RY-FAN_2L
13
1
5
RY-FAN_2H
14
12
IC02M (KID65004AP) 8 9 6 11
RY-FAN_1L
15
RY-HOT
RY-FAN_1H
16
RY-4WAY
RY-LIQ
RY-COMP2
TEST S/W R01T 1K R02T 56K
LED01T (YELLOW)
R04T R03T 10K 1K
IC01M
R01H,1K
R03H,1K R05H,1K
R07H,1K
R03B,R04B,R05B 4.7K 1%
5V
5V
45 44 19 18 17 16 15 14 13 12 21 22 P52 P51 P20 P17 P16 P15 P14 P13 P12 P11 P21 P22
46 P53 58 VDD 49 VAREF
47 P54 C03A 0.001
R06B,R07B 10K 1% R08B 1K
5V
R01A 1K C01A 10 50V
TMP87CM41F (TOSHIBA)
R03A 100
R02A,4.7K
R01B 1M
3
1 3.6V 2
5V IC01A KIA7036P
43
64 01 02 03 04 05 06 07 08 09 10 11 63
OSC01B CST-8.00MTW R02B 100
P75 P76 P77 P00 P01 P02 P03 P04 P05 P06 P07 P10 P74
42 41 40 39 38 37 36 35
P50
P47 P46 P45 P44 P43 P42 P41 P40
Q01Z KRA107M
AR01Z 4.7K,5%
C01K 0.001 25V C02K 0.001 25V C03K 0.001 25V C04K 0.001 25V C05K 0.001 25V C06K 0.001 25V
C07K 0.001 25V C08K 0.001 25V
C09K 0.001 25V C10K 0.001 25V
C11K 0.001 25V C12K 0.001 25V
R09H 12.1K 1%
DC 5V R01K,1K R02K 10K
3
2 R03K 1.5K
ZD03D 68V
R05K,1K
3 2 R07K 1.5K 4 1 IC03K(TLP621/421) 2 3 R08K ZD04D 68V 1K 1 4 IC04K(TLP621/421)
4 1 IC01K(TLP621/421) 2 3 R04K 1K 1 4 IC02K(TLP621/421)
R09K,1K
2 3 R11K 1.5K 1 4 IC05K(TLP621/421) 3 2 R12K ZD05D 1K 1 68V 4 IC06K(TLP621/421)
R06K 10K
R13K,1K
3 2 R15K 1.5K 4 1 IC07K(TLP621/421) 3 2 R16K ZD06D 1K 1 68V 4 IC08K(TLP621/421) R18K 10K
R14K 10K
R10K 10K
R17K,1K
5V
LEV_4
CN-LEV_4
LEV_3
CN-LEV_3
LEV_6
CN-LEV_6
LEV_1
CN-LEV_1
LEV_2
CN-LEV_2
LEV_5
CN-LEV_5
C08D 104
IC03D KIA78L05BP O 7805 I G
C10D 103
1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 5 6
C07D 330uF/35V
3 2 R23K 1.5K 4 1 IC11K(TLP621/421) 2 3 R24K ZD08D 1K 1 68V 4 IC12K(TLP621/421)
3 2 R19K 1.5K 4 1 IC09K(TLP621/421) 2 3 R20K ZD07D 1K 1 68V 4 IC10K(TLP621/421) R22K 10K
C09D 220uF/50V
DC 5V
R21K,1K
OR1H XXX
12V + C01M 330uF/25V 10 18 17 IC03M 16 ULN2804 15 14 13 12 11
C02M 104K 9 1 2 3 4 5 6 7 8
12V + C03M 330uF/25V 10 18 17 IC04M 16 ULN2804 15 14 13 12 11
C04M 104K 9 1 2 3 4 5 6 7 8
1 2 3 4 5 6 1 2 3 4 5 1 2 3 4 5
12V NF02J 85uH R03J 39
R02J 150 ZD02D 11V
R25K R26K R27K R28K R29K R30K R31K R32K R33K R34K R35K R36K 30K/1W (12EA)
C02A 150uF/ 100V
C05D 681 6,7 D03D SB360 C06D (UF5402) 470uF/35V 4,5 IC02D(TLP521)
C04D 0.01UF/400V
1 2 3 4 5 6
ZD02K 36V,1W
ZD01K 36V,1W
DC310V
ST02D-170 (UF4005)
D07K 1SR139-600 D08K 1SR139-600 D09K 1SR139-600 D10K 1SR139-600 D11K 1SR139-600 D12K 1SR139-600
1
R08J 50.5K/1W
S/Trans
3 D D02D 5 EN 4 TNY IC01D BP 266P 1 2 TNY266P S 3,7,8 C03D 104
CN-COM A ROOM B ROOM C ROOM D ROOM E ROOM F ROOM
C07M 102,100V
NTC01D 100D-9
C01D 33uF/ 450V
D13K 1N4007
D14K 1N4007
D01D 1N4007
R04J R05J 11K/3W 11K/3W
R06J R07J 11K/3W 11K/3W
R01J 1M,1/2W
4
NF
RY-FAN_1L
RY-FAN_1H
RY-FAN_2H
1
2
3
1
2
3
1
RY-FAN_2L
RY-HOT
2
3
2
1
3
2
1
4
RY-LIQ
RY-COMP1
RY-COMP2
3
FUSE 250V/T3.15A ZNR01J INR14D561K INR14D471K
RY-SV
C01J 100nF 275V
RY-4WAY
3
C02J 100nF NF01J 275V 22mH/3A 2 1
1 1 AC_N AC_L
CN-POWER
FAN_1
CN-FAN_1
FAN_2
CN-FAN_2
HOT
CN-HOT,LIQ,SV,4WAY
SV
LIQ
4WAY
CN-COMP
COMP 2
COMP 1
LIVE
NEUTRAL
34 Free Joint Multi Air Conditioner
RY-COMP1
5V
RY-SV
CN_TEST 1 2 3 4
C01X 0.01
AR02Z 4.7K,5%
12V C06M 104K + C05M 330uF/25V 10 18 17 IC05M 16 ULN2804 15 14 13 12 11 9 1 2 3 4 5 6 7 8
12V
59 60 61 62 P70 P71 P72 P73 48 VASS 26 VSS 20 TEST 1 2 3 4 RX TX 0V 5V CN-CENTRAL
P60 P61 P62 P63 P64 P65 P66 P67
RESET 23 X IN 24 X OUT 25 P30 P31 P32 P33 P34 P35 P36 P37
27 28 29 30 31 32 33 34 50 51 52 53 54 55 56 57
CN-TH1 1 PIPE_TH 2 3 OUT_TH 4 CN-TH2 1 SUCTION 2 3 DISCHARGE 4
GND IN OUT 5V 5V
5V
Functions
Functions Indoor Unit Operation ON/OFF by Remote controller Sensing the Room Temperature • Room temperature sensor. (THERMISTOR) Room temperature control • Maintains the room temperature in accordance with the Setting Temp. Starting Current Control • Indoor fan is delayed for 5 sec at the starting. Time Delay Safety Control • Restarting is inhibited for approx. 3 minutes. Indoor Fan Speed Control • High, Med, Low, CHAOS, JET COOL Operation indication Lamps (LED) • Refer to 37 page signal receptor. Soft Dry Operation Mode • Intermittent operation of fan at low speed. Sleep Mode Auto Control • The fan is switched to low(Cooling), med(Heating) speed. • The unit will be stopped after 1, 2, 3, 4, 5, 6, 7 hours. Natural Air Control by CHAOS Logic • The fan is switched to intermittent or irregular operation • The fan speed is automatically switched from high to low speed. Airflow Direction Control • The louver can be set at the desired position or swing up and down automatically.
PLASMA • The function will be operated while in any operation mode with selecting the function. • The function is to be stopped while it is operating with selecting the function. Defrost(Deice) control (Heating) • Both the indoor and outdoor fan stops during defrosting. Hot-start Control (Heating) • The indoor fan stops until the evaporator pipe temperature will be reached at 28°C.
Service Manual 35
Functions Remote Controller Operation ON/OFF
Operation Mode Selection Cooling Operation Mode.( (Cooling (Heating model only) model only)
)
Healthy Dehumidification Operation Mode.(
Auto Operation Mode.(
)
) Heating Operation Mode.(
Fan Speed Selection (Low)
(Med)
(High)
(CHAOS)
Room, Temperature Display : (High: 39°C
LOW : 11°C)
Temperature Setting TEMPERATURE
HIGH
LOW
Cooling
Down to 18°C Heating Up to 30°C
JET COOL
Setting the Time or Timer
Timer Selection ON
OFF
: OFF, ON, OFF
ON
Timer Setting SET
Timer Cancel CANCEL
: Cancel Sleep Mode, Timer ON or Timer OFF
Sleep Operation : 1, 2, 3, 4, 5, 6, 7, Off Timer Airflow Direction Control
Fan Operation Mode : Fan Operates without cooling or heating. Reset
36 Free Joint Multi Air Conditioner
Down to 16°C Up to 30°C
)
Functions
Signal Receptor Receives the signals from the remote controller.(Signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps On/Off
: Lights up during the system operation. : Lights up during Sleep Mode Auto operation. : Lights up during Timer operation. : Lights up during Defrost Mode or Hot Start operation (Heat pump model only) : Lights up during outdoor unit operation. (Cooling model only)
Sleep Mode Timer Signal receptor
Defrost Mode
OUT OUTDOOR UNIT DOOR OPERATION
Operation indication lamps
Receives the signals from the remote controller.(Signal receiving sound: two short beeps or one long beep.) Operation Indication Lamps : Lights up during the system operation. : Lights up during Sleep Mode Auto operation. Timer : Lights up during Timer operation. Defrost Mode : Lights up during Defrost Mode or Hot Start operation.(Heat pump model only) Outdoor unit operation : Lights up during outdoor unit operation.(Cooling model only) PLASMA : Indicate PLASMA purifier operation. On/Off
Sleep Mode
Operation indication lamps
Self-diagnosis Function ■ Error Indicator • The function is to self-diagnoisis airconditioner and express the troubles identifically if there is any trouble. • Error mark is ON/OFF for the operation LED of evaporator body in the same manner as the following table. • If more than two troubles occur simultaneously, primarily the highest trouble fo error code is expressed. • After error occurrence, if error is released, error LED is also released simultaneously. • To operate again on the occurrence of error code, be sure to turn off the power and then turn on. • Having or not of error code is different from Model. Error Code
1
Error LED (Indoor body operation LED)
Error contents
SVC check point
5sec
(once) 3sec
3sec
3sec
(twice)
2 3sec
3sec
• Indoor air temperature thermistor open/short.
• Indoor air TH ass'y check
• Indoor inlet pipe temperature thermistor open/short.
• Indoor inlet pipe TH ass'y check
• Poor communication
• Communication line/circuit
• Indoor outlet pipe temperature thermistor open/shor
• Indoor outlet pipe TH ass'y check
• Defferent Operation (Simultanueous operation of cooling and heating.
• Operate indoor units only heating or cooling mode.
• Indoor EEP ROM data (Art type only)
• Replace main PCB DC ASM
• Outdoor air temperature thermistor open/short
• Outdoor air TH ass'y check
• Outdoor pipe themperature thermistor open/short
• Outdoor pipe TH ass'y check
• Overload combination
• Indoor unit combination check (Refer to Max. capacity)
(5times)
5
3sec (6times)
6 3sec (7times)
7 3sec (9times)
9 3sec
44 3sec
3sec
45 3sec
51 3sec
3sec
: ten digits : one digits
Service Manual 37
Functions
Remote Control Operation The Remote Controller transmits the signals to the system.
1
START/STOP BUTTON Operation starts when this button is pressed and stops when the button is pressed again.
2 OPERATION MODE SELECTION BUTTON Used to select the operation mode. Signal transmitter
3 ROOM TEMPERATURE
(Heat Pump)
(Cooling Only)
SETTING BUTTONS Used to select the room temperature.
5 6
INDOOR FAN SPEED SELECTOR Used to select fan speed in four steps low, medium, high and CHAOS.
5
JET COOL Used to start or stop the speed cooling/heating. (Speed cooling/heating operates super high fan speed.)
1
6 CHAOS SWING BUTTON
3
Used to stop or start louver movement and set the desired up/down airflow direction.
4 2 7 11 8 13
4
7
10 CANCEL ON
OFF
9 16
SET AUTO CLEAN
ON/OFF TIMER BUTTONS Used to set the time of starting and stopping operation.
8 TIME SETTING BUTTONS Used to adjust the time.
9 TIMER SET/CANCEL BUTTON
12
Used to set the timer when the desired time is obtained and to cancel the Timer operation.
15
14
10 SLEEP MODE AUTO BUTTON Used to set Sleep Mode Auto operation. Flip-up door (opened)
Operation Mode
11 AIR CIRCULATION BUTTON Used to circulate the room air without cooling or heating.
12 ROOM TEMPERATURE CHECKING BUTTON Used to check the room temperature.
Cooling Operation
13 PLASMA(OPTIONAL) Auto Operation
Used to start or stop the plasma-purification function.
14 RESET BUTTON Healthy Dehumidification Operation
Initialize remote controller.
15 2nd F Button
Heating Operation
• Cooling Model(
), Heat Pump Model(
)
Used prior to using modes printed in blue at the bottom of buttons.
16 AUTO CLEAN (Art type only) Used to set Auto Clean mode.
38 Free Joint Multi Air Conditioner
Operation Details
Operation Details Main Unit Function 1) C/O Model Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on) Sleep Timer Indicator • On while in sleep timer mode, off when sleep timer cancel or appliance operation pause Timer Indicator • On while in timer mode (on/off), off when timer mode is completed or canceled. Comp. Running Incidator • While in appliance operation, on while in outdoor unit compressor running, off while in compressor off 2) H/P Model Operation Indicator • On while in appliance operation, off while in appliance pause • Flashing while in disconnection or short in Thermistor (3 sec off / 0.5 sec on) Sleep Timer Indicator • On while in sleep timer mode, off when sleep timer cancel or appliance operation pause Timer Indicator • On while in timer mode (on/off), off when timer mode is completed or canceled Defrost Indicator • Off except when hot start during heating mode operation or while in defrost control
■ Cooling Mode Operation • When the intake air temperature reaches 0.5°C below the setting temp, the compressor and the outdoor fan stop. • When it reaches 0.5°C above the setting temp, they start to operate again. Compressor ON Temp ➲ Setting Temp+0.5°C Compressor OFF Temp ➲ Setting Temp-0.5°C • While in compressor running, operating with the airflow speed set by the remote control. While in compressor not running, operating with the low airflow speed regardless of the setting.
■ Healthy Dehumidification Mode • When the dehumidification operation input by the remote control is received, the intake air temperature is detected and the setting temp is automatically set according to the intake air temperature. 26°C ≤ Intake Air Temp ➲ 25°C 24°C ≤ Intake Intake Air Temp