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LG A2UQ166FA0, Service Manual, Page: 171 / 238

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LG A2UQ166FA0 Service Manual Download Page 171

Service Manual  171

Troubleshooting Guide

Turn on main power.

While the compressor has been stopped, the compressor does not operate 

owing to the delaying function for 3 minutes after stopped.

When the compressor stopped Indoor Fan is driven by a low speed.

At this point the wind speed is not controlled by the remote controller.

(When operated in the Sleeping Mode, the wind speed is set to the low speed as force.)

Caused by the remote controller.

Caused by other parts except 

the remote controller

When the mark (       ) is displayed in LCD

screen, replace battery.

Check the contact of CN-DISP 1 connector

When the detect switch (double key) inside the

remote controller door is fault, it is impossible to

operate temperature regulating(

▲

/ 

▼

) and wind

speed selecting.

Check DISP PWB Ass'y 

-Voltage between CN1 

➀ 

-

➆ 

: DC +5V

Check the Display PWB Ass'y

• Check receiver ass'y

Product doesn't operate with the remote controller.

Trouble 2

Summary of Contents for A2UQ166FA0

Page 1: ...W146FA0 A2UW186FA0 A3UW186FA0 A3UW246FA0 A4UW246FA0 A4UW306FA0 A6UW406FA0 A7UW486FA0 A8UW566FA0 Room Type Art Cool Type Art Cool Deluxe Type Duct Type 1 Way CST AMNH096BTG0 AMNH126BTG0 AMNH186BTG0 AMNH096BPA0 AMNH126BPA0 AMNH186BHA0 AMNH246BHA0 AMNC246BHA0 AMNH306BGA0 AMNC306BGA0 AMNH366BGA0 AMNC366BGA0 AMNH096TCC0 AMNC096TCC0 AMNH126TCC0 AMNC126TCC0 4 Way CST AMNH126TEC0 AMNH186TEC0 AMNH246TFC0 A...

Page 2: ... and Piping Length 81 Installation 82 Installation of The Main Unit 83 Connection of Piping 84 Connection of Wiring 85 Operation 86 Function of control 86 Function of Indoor Unit 91 Function of Outdoor Unit 97 Remote Control Operation 98 Control Devices and Function 106 Simple Central Control 106 Term of Each part and Function 106 Electrical wiring 107 Deluxe Central Control 113 Disassembly of the...

Page 3: ...g Cassette B Ceiling Concealed Duct V Ceiling Floor Convertible Function A Basic L Nano Plasma Auto Clean Wall Mounted C Plasma Ceiling Cassette G Low Static Motor ART COOL DELUXE Type Front Panel Color B Blue D Wood M Meta R Mirror W White R410A MPS Inverter Multi System Outdoor Unit And No of Connectable Indoor Units Ex A2U Connectable max 2 Indoor Units A6U Connectable max 6 Indoor Units Model ...

Page 4: ...PT CEA 3721A10105C 8435002992954 COOLING PT CEC 3721A10105D 8435002992961 COOLING PLASMA PT HAD 3721A10106A 8435002994057 HEATING TD family look PT HDC 3721A10106B 8435002994064 HEATING PLASMA PT CDA 3721A10106C 8435002994071 COOLING PT CDC 3721A10106D 8435002994088 COOLING PLASMA BUILT IN DUCT BP PB HPA 3721A20168A 9K 12K BQ PB HQA 3721A20168B 18K 24K Category CHASSIS PANEL NAME PANEL P NO SERIAL...

Page 5: ...S inverter system but one inverter compressor system MPS Inverter Multi Series Multi Piping Type Distributor Type Heat Pump Model Name Rated Capacity Cooling kW Btu h Heating kW Btu h Number of Indoor Units to be Connected Indoor Units kW Connectable Capacity Btu h Power Supply A2UW146FA0 A2UW186FA0 A3UW186FA0 A3UW246FA0 A4UW246FA0 A4UW306FA0 A6UW406FA0 A7UW486FA0 A8UW566FA0 4 7 1600 5 3 18000 5 3...

Page 6: ...nstallation Be sure not to do Be sure to follow the instruction Do not use a defective or under rated circuit breaker Use this appliance on a dedicated circuit There is risk of fire or electric shock For electrical work contact the dealer seller a qualified electrician or an Authorized Service Center Do not disassemble or repair the product There is risk of fire or electric shock Always ground the...

Page 7: ...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 sure the installation area does not deteriorate with age If the base collapses the air condi tioner could fall with it causing property damage product failure and personal injury Do not let the air conditioner run for a long time when the humidity...

Page 8: ...witches on or off There is risk of explosion or fire If strange sounds or small or smoke comes from product Turn the breaker off or discon nect the power supply cable There is risk of electric shock or fire Stop operation and close the window in storm or hurricane If possible remove the prod uct from the window before the hurricane arrives There is risk of property damage failure of product or ele...

Page 9: ...r electric shock Turn the main power off when cleaning or maintaining the product There is risk of electric shock When the product is not be used for a long time dis connect the power supply plug or turn off the breaker There is risk of product damage or failure or unintend ed operation Take care to ensure that nobody could step on or fall onto the outdoor unit This could result in personal injury...

Page 10: ... It may cause a problem for your neighbors Use two or more people to lift and transport the product Avoid personal injury Do not install the product where it will be exposed to sea wind salt spray directly It may cause corrosion on the product Corrosion particularly on the condenser and evaporator fins could cause product malfunction or inefficient operation Do not expose the skin directly to cool...

Page 11: ...the water drained from the product It is not sanitary and could cause serious health issues Use a firm stool or ladder when cleaning or maintaining the product Be careful and avoid personal injury Replace the all batteries in the remote control with new ones of the same type Do not mix old and new batteries or dif ferent types of batteries There is risk of fire or explosion Do not recharge or disa...

Page 12: ...g Left rear piping ø70mm ø70mm 50mm 20mm 20mm 80mm A A ø70mm Center Center ø70mm Left rear piping Right rear piping A A H W Tubing hole cover Left rear piping Right rear piping Hole Center ø70mm D C 7K 9K 9K 12K 18K 24K Pipe Hole Fix Hole Hanger Hole H W D W mm 824 900 1 080 H mm 260 285 314 D mm 155 156 172 SQ 7K 9K SR 9K 12K ST 18K 24K MODEL DIM ...

Page 13: ...Service Manual 13 Dimensions Installation plate D H W MODEL DIM Unit W mm 900 1030 H mm 272 290 D mm 135 153 SZ 7K SU 9K 12K 3 Art Cool Deluxe Type ...

Page 14: ...pe Air Conditioner Dimensions W H D H H D BH BG BP BT BT1 W W D MODEL DIM W mm 708 1060 880 1180 580 H mm 230 230 260 298 300 D mm 537 357 450 450 750 BT 9K 12K BT1 18K BH 18K 24K BG 30K 36K BP 9K 12K 4 Duct Type ...

Page 15: ...s 5 CVT Type VE 9K 12K VB 18K 24K R Installation plate D W H 250mm 36mm 36mm 1076mm Rear Side 63mm 38mm 175mm Installation Plate 392mm 265mm 468mm D W H MODEL DIM Unit W mm 900 1200 H mm 285 615 D mm 156 205 VE 9K 12K VB 18K 24K ...

Page 16: ...80 Ø55 180 91 6 1 000 Ceiling opening 931 6 893 4 Hanging bolt 328 4 Hanging bolt 860 390 30 8 430 Ceiling opening 4 5 6 3 2 1 6 CST Type TC 9K 12K 6 CST Type TC 9K 12K unit mm Number Name Descripition 1 Liquid pipe connection ø6 35 flare 2 Gas pipe connection ø9 52 flare 3 Drain pipe connection 4 Power supply connection 5 Air discharge grill 6 Air suction grill ...

Page 17: ... size 570 Unit size 450 Hanging bolt 75 75 600 Ceiling opening 600 Ceiling opening 521 Hanging bolt 39 5 39 5 7 CST Type TE 12K 18K Dimensions unit mm Number Name Descripition 1 Liquid pipe connection ø6 35 flare 2 Gas pipe connection 12k ø9 52 18k ø12 7 flare 3 Drain pipe connection 4 Power supply connection 5 Air discharge grill 6 Air suction grill ...

Page 18: ...m 744 Unit size 744 Unit size 658 Hanging bolt 66 66 790 Ceiling opening 790 Ceiling opening 572 Hanging bolt 109 109 30 unit mm Number Name Descripition 1 Liquid pipe connection ø6 35 flare 2 Gas pipe connection ø12 7 flare 24K ø15 88 flare 30K 3 Drain pipe connection 4 Power supply connection 5 Air discharge grill 6 Air suction grill Dimensions ...

Page 19: ... 840 Unit size 840 Unit size 672 Hanging bolt 101 5 101 5 875 Ceiling opening 875 Ceiling opening 785 Hanging bolt 45 45 4 5 6 1 3 2 Dimensions unit mm Number Name Descripition 1 Liquid pipe connection ø6 35 flare 2 Gas pipe connection ø15 88 flare 3 Drain pipe connection 4 Power supply connection 5 Air discharge grill 6 Air suction grill ...

Page 20: ...900 H mm 555 655 800 1060 1165 D mm 262 320 320 320 370 L1 mm 340 370 370 360 460 L2 mm 37 25 25 20 45 L3 mm 544 775 775 1040 1135 L4 mm 11 25 25 20 30 L5 mm 590 546 546 550 550 L6 mm 105 160 160 160 175 L7 mm 105 160 160 165 175 16K 14K 18K 24K 30K 40K MODEL DIM 30K 40K 14K 16K 18K 24K Dimensions ...

Page 21: ...nlet Air outlet Service Panel Unit mm Knockout hole For the control wiring the power supply refrigerant connecting pipe Knockout hole For the control wiring the power supply refrigerant connecting pipe 153 15 690 40 1444 28 100 220 1512 670 730 153 806 500 bolt hole 700 bolt hole ...

Page 22: ... 2 14 6 976 233 372 45 9 10 0 15 3 1165 255 388 45 9 10 0 15 3 1165 255 388 354 774 360 780 354 774 360 780 338 714 340 720 338 714 340 720 264 536 270 540 264 536 270 540 Morning Beige Morning Beige Morning Beige Morning Beige Morning Beige Morning Beige Rated Cooling Capacity kcal hr W Btu hr Rated Heating Capacity kcal hr W Btu hr Air Circulation H M L CMM CFM Setting temperature range C Fan mo...

Page 23: ...olumn Dehumidification Rate l h Dimensions W H D Indoor inch mm Panel inch mm Net Weight kg lbs Piping Liquid inch mm Connection Gas inch mm Drain hose ID Ø mm Packing Dimension W H D inch mm Stuffing Quantity Without S Parts 20 40ft Ceiling Cassette 1way Ceiling Cassette 4way AMNH C 096TCC0 AMNH C 126TCC0 AMNH C 126TEC0 AMNH C 186TEC0 AMNH C 246TFC0 AMNH C 306TFC0 AMNH C 366TDC0 Indoor Unit Type ...

Page 24: ... 9 27 1272 278 686 189 383 189 383 102 219 102 219 Rated Cooling Capacity kcal hr W Btu hr Rated Heating Capacity kcal hr W Btu hr Air Circulation H M L CMM CFM External Static Pressure mmAq Setting temperature range C Fan motor Output W Model No of Poles Input W Running Current A Capacitor µF Vac Fan Type No Used Diameter EA inch mm Fan RPM Cooling H M L rpm Heating H M L rpm Noise Level Sound Pr...

Page 25: ...350 420 2400 480 2600 420 2400 480 2600 440 2970 560 2950 450 3580 620 3580 1 7 7 3 1 6 6 5 2 0 5 8 3 5 11 5 4 12 3 5 11 5 4 12 3 08 13 0 4 6 12 9 3 2 15 7 4 6 15 7 8 1 1 1 28 28 1 220 240 50 1 220 240 50 1 220 240 50 1 220 240 50 1 220 240 50 1 220 240 50 94 98 94 98 94 98 94 98 94 98 95 98 2 2 3 3 4 4 Twin Rotary e Scroll e Scroll e Scroll e Scroll e Scroll Rotary Rotary MRA99150 9090 INTERNAL 9...

Page 26: ...otal Branch Piping m For One Room m Max Installation Indoor Unit Outdoor Unit m Height Difference Indoor Unit Indoor Unit m Packing Dimension W H D inch mm Stuffing Quantity With Without S Parts 20 40ft 4032 12095 4032 14515 4032 16934 4689 14067 4689 16878 4689 19691 16 000 48 000 16000 57600 16000 67250 4838 13356 4838 16027 4848 19051 5627 15533 5627 18636 5627 22152 19 200 53 000 19200 63600 1...

Page 27: ...00 24 000 7 000 36 000 Ø1 50 60Hz 220 240 220V Ø1 50 60Hz 220 240 220V Ø1 50 60Hz 220 240 220V Ø1 50 60Hz 220 240 220V 10 10 10 10 0 05 0 05 0 05 0 05 R410A R410A R410A R410A 302 143 252 302 143 252 302 143 252 302 143 252 422 202 300 422 202 300 422 202 300 422 202 300 5 5 5 5 4 0 75 Includes earth 4 0 76 Includes earth 4 0 77 Includes earth 4 0 77 Includes earth 4 0 75 Includes earth 4 0 76 Incl...

Page 28: ...an be easily obtained A place where noise prevention is taken into considera tion Do not install the unit near the door way Ensure the spaces indicated by arrows from the wall ceiling fence or other obstacles 2 Art Cool Type 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 conve nien...

Page 29: ...n as fig ure The place shall easily connect with the outdoor unit The place where the unit is not affected by an electrical noise The place where air circulation in the room will be good There should not be any heat source or steam near the unit 5 CST Type Indoor Unit There should not be any heat source or steam near the unit There should not be any obstacles to the air circulation A place where a...

Page 30: ...here air circulation in the room will be good A place where drainage can be easily obtained A place where noise prevention is taken into consid eration Do not install the unit near the door way Ensure the spaces indicated by arrows from the wall ceiling or other obstacles More than 20cm More than eye level More than 20cm R R More than 20cm More than 20cm Ceiling installation Floor Wall installatio...

Page 31: ...he piping hole with 70mm dia holecore drill Line according to the arrows marked on lower the left and the rght side of the Installation Plate The meeting point of the extended line is the center of the hole Drill the piping hole at either the right or the left and the hole should be slightly slant to the out door side Installation Plate marking off line Thread Weight Type A screw 40 20 40 0 SR 9 1...

Page 32: ...arate con necting wire with product 2 Cover pipe and cover side remove Remove two screws for fixing cover pipe Pull up the cover side of desired connecting direc tion then cover side is separated In case connecting direction is left or right path through the hole of cover side NOTE When connecting pipe path through rear wall don t remove the hole 3 Drain hose junction Remove the rubber stopple of ...

Page 33: ... screws In this time Remove the map Falling attention 5 Check the fixed product with light power 6 Look at suited horizon by horizontal meter on the horizontal setting line and Fix lightly the map by adhesive tape 7 Drill the piercing part for connecting pipe as diameter 50mm In case of piercing rear surface Refer to No 5 on this page when making a hole in the wall 8 First Drive the two points of ...

Page 34: ...e location of the installation plate routing of the wiring to power outlets is through the walls typi cally Drilling the hole through the wall for piping connections must be done safely 3 Drill a hole in the wall Drill the piping hole with a ø70mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side Installation Plate Type A screw...

Page 35: ...es as restaurants and kitchens considerable amount of oil steam and flour adhere to the fan the fin of the heat exchanger resulting in heat exchange reduction spraying dispersing of water drops etc In these cases take the following actions Make sure that the ventilation fan for smoke collecting hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into t...

Page 36: ...ace where the unit will be leveled and that can support the weight of the unit A place where the unit can withstand its vibration A place where service can be easily performed CASE 1 POSITION OF SUSPENSION BOLT CASE 2 POSITION OF CONSOLE BOLT Unit mm Drainage hole M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply X 4 M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply X 4 A B C D 1 3 mm F H ...

Page 37: ...ce where the unit will be leveled and that can support the weight of the unit A place where the unit can withstand its vibration A place where service can be easily performed CASE 1 POSITION OF SUSPENSION BOLT POSITION OF CONSOLE BOLT Unit mm C B A D G H F E Drainage hole 1 3 mm H I M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply X 4 M10 Nut M10 SP washer M10 washer X 4 X 4 Local supply X 4 ...

Page 38: ...uts are removed from the indoor unit as some gas is charged to prevent the inside of the pipe from rusting Fit the copper pipe end into the Bar of flare tool about 0 0 5mm higher See illustration Flare the pipe ends 4 Tape the flaring portion to protect it from the dust or damages 90 Slanted Pipe cutter Rough Reamer Pipe Point down A Bar Copper pipe Clamp handle Red arrow mark Cone Bar Yoke Handle...

Page 39: ...iture or floors Foamed polyethylene or equivalent is recommended 4 Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the installation plate Ensure that the hooks are properly seated on the installation plate by moving it left and right Press the lower left and right sides of ...

Page 40: ...sition 2 Insert the piping drain hose and the connecting cable into the piping hole 3 Insert the connecting cable into the indoor unit Don t connect the cable to the indoor unit Make a small loop with the cable for easy connec tion later 4 Tape the drain hose and the connecting cable Connecting cable 5 Indoor unit installation Hang the indoor unit from the hooks at the top of the installation plat...

Page 41: ...se across the back of the chassis 9 Set the pipings and the drain hose to the back of the chassis with the tubing holder Hook the edge of tubing holder to tap on chassis and push the bottom of tubing holder to be engaged at the bottom of chassis 10 Indoor unit installation Remove the spacer Ensure that the hooks are properly seated on the installation plate by moving it left and right Press the lo...

Page 42: ...are nut by hand Tighten the flare nut with a wrench When extending the drain hose at the indoor unit install the drain pipe 4 Wrap the insulation material around the connecting portion Overlap the connection pipe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there is no gap Wrap the area which accommodates the rear piping housing sectio...

Page 43: ... the side cover assembly exactly Fix power cord in the bottom groove of cover side 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 3 Drive two screws Panel Front Connector ...

Page 44: ...e room insulate the hose with an insulation material so that dripping from sweating condensation will not damage furniture or floors Foamed polyethylene or equivalent is recommended 4 Indoor unit installation Hook the indoor unit onto the upper portion of the installation plate Engage the two hooks of the rear top of the indoor unit with the upper edge of the instal lation plate Ensure that the ho...

Page 45: ...ain hose and the connecting cable Connecting cable 5 Indoor unit installation Hang the indoor unit from the hooks at the top of the installation plate Insert the spacer etc between the indoor unit and the installation plate and separate the bottom of the indoor unit from the wall 6 Connecting the pipings to the indoor unit and the drain hose to drain pipe Align the center of the pipes and sufficie...

Page 46: ...the pipings and the drain hose to the back of the chassis with the tubing holder Hook the edge of tubing holder to tap on chassis and push the bottom of tubing holder to be engaged at the bottom of chassis 10 Indoor unit installation Remove the spacer Ensure that the hooks are properly seated on the installation plate by moving it left and right Press the lower left and right sides of the unit aga...

Page 47: ...ght to left could cause problem of pipe damage Installation Information For left piping Good case For left piping Follow the instruction below Press on the upper side of clamp Bend the tubing to the left side of chassis Bend the tubing to the left side of chassis CAUTION ...

Page 48: ...ing the suspension bolts on the ceil ing Mount the suspension bolts to the set anchor firmly Secure the installation plates onto the suspension bolts adjust level roughly using nuts washers and spring washers 1 Set anchor Old building New building 2 Plate washer 3 Spring washer 4 Nut 5 Suspension bolts Local supply Set anchor Plate washer M10 Spring washer M10 Nut W3 8 or M10 Suspension bolt W3 8 ...

Page 49: ... and right side Detach the Inlet Grille from the Indoor Unit 1 Installation on the ceiling Measure and mark the position for the Suspension bolts and the piping hole Drill the hole for anchor nut on the ceiling Before secure the Installation Plates select the bent direction of the Installion Plate to the inside or the outside according to the installation circumstances Drill the piping hole on the...

Page 50: ...oth left and right side of the unit to the lower slot of Installation Plates Adjust a level with a level gauge on the direction of left right back forth by adjusting suspension bolts Move the hooks on the unit to the upper slot of Installation Plates Then the unit will be declined to the bottomside so as to drain well Washer Nut Suspension bolts Ceiling Anchor nut Suspension bolts Spring washer ma...

Page 51: ... through the walls typi cally Drilling the hole through the wall for piping connections must be done safely Mounting the anchor Nut Bolt Ceiling Mounting Prepare 4 suspension bolts Each bolts length should be same Measure and mark the position for the Suspension bolts and the piping hole Insert the nuts and washer onto the suspension bolts for locking the suspension bolts on the ceil ing Mount the...

Page 52: ...djusting suspension bolts Move the hooks on the unit to the upper slot of Installation Plates Then the unit will be declined to the bottomside so as to drain well Drill a Hole in the Wall Drill the piping hole with a ø70mm hole core drill Drill the piping hole at either the right or the left with the hole slightly slanted to the outdoor side 5 7mm 3 16 5 16 Indoor WALL Outdoor Suspension bolt Cent...

Page 53: ...insulation for the connecting pipe shall be 7mm 3 If the Installation Plates are fixed to horizontal line the indoor unit after installing will be declined to the bottomside CAUTION The unit must be horizontal or declined to the drain hose connected when finished installation The unit must be declined to the bottomside of the unit when finished installation Installation CAUTION Installation Inform...

Page 54: ...let hanger Hook Cabinet Bottom Secure the unit to the Installation Plates with four M8 bolts and washers Hook up the Inlet Grille Hook to the cabinet Hang the Inlet Hanger to the screw Fit the projection hooks of the side plates to the Side Panel and the Front Panel by lifting it Fasten the screws Installation ...

Page 55: ...lted to the drain direction after considering the direction of drain hose Drill the hole for anchor nut on the wall Drill the piping hole on the wall slightly tilted to the out door side using a ø70 hole core drill Secure the Install Plate onto the wall with four anchor bolts washers and spring washers Before secure the Install Plates select the bent direc tion of the Install Plate to the inside o...

Page 56: ...tallation Plate Secure the unit to the Installation Plate with four M8 bolts and washers Hook up the Inlet Grille Hook to the cabinet Hang the Inlet Hanger to the screw Fit the projection hooks of the side plates to the Side Panel and the Front Panel by lifting it Fasten the screws R 2 1 Before working refer to Connecting pipe and cable to Indoor Unit Inner slot Installation ...

Page 57: ... Engage the slot at the back of the unit with Mount Bracket Drill the piping hole with 70mm dia hole core drill Piping hole should be slightly slant to the outdoor side After Installing reassemble detached parts Hang the Inlet Grille and hook the Inlet Hanger to the Hanger Screw Assemble the Side Plates R L with 2 screws on both left and right side Floor mount bracket Slot Floor mount bracket Inst...

Page 58: ... 3 Avoid places where inflammable gas is generated 4 Avoid place where noxious gas is generated 5 Avoid places near high frequency generators Ceiling board Level gauge Ceiling 1 000 Ceiling opening 931 6 893 4 Hanging bolt 328 4 Hanging bolt 860 390 30 8 430 Ceiling opening Use the ventilation fan for smoke collecting hood with sufficient capacity Cooking table Air conditioner Take enough distance...

Page 59: ... the outer edge of the paper model Flat washer for M10 accessory Hanging bolt W3 8 or M10 Nut W3 8 or M10 Nut W3 8 or M10 Spring washer M10 Air Conditioner body The following parts are local purchasing Hanging Bolt W 3 8 or M10 Nut W 3 8 or M10 Spring Washer M10 Plate Washer M10 Drill the piping hole on the wall slightly tilted to the outdoor side using a Ø 70 hole core drill Tighten the nut and b...

Page 60: ...m 840 Unit size 840 Unit size 672 Hanging bolt 101 5 101 5 875 Ceiling opening 875 Ceiling opening 785 Hanging bolt 45 45 TE TF TD The dimensions of cardboard for installing are the same as those of the ceiling opening dimensions Select and mark the position for fixing bolts and piping hole Decide the position for fixing bolts slightly tilted to the drain direction after considering the direction ...

Page 61: ...lt to prevent the unit from falling off CAUTION Installation NOTE Avoid the following installation location 1 Such places as restaurants and kitchen where considerable amount of oil steam and flour is generated These may cause heat exchange efficiency reduction or water drops drain pump mal function In these cases take the following actions Make sure that ventilation fan is enough to cover all nox...

Page 62: ...e indoor unit the remote controller should be installed in such places away from direct sunlight and high humidity Installation of the remote controller Select places that are not splashed with water Select control position after receiving customer approval The room temperature sensor is built in the indoor unit This remote controller equipped with liquid crystal display If this position is higher...

Page 63: ...at both batteries are new Re attach the cover Slide it back into position REMOTE CONTROL PREPARATION OPTIONAL HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES Do not use rechargeable batteries such batteries differ from standard dry cells in shape dimensions and per formance Romove the batteries from the remote controller if the air conditioner is not going to be used for some long time HOW TO INS...

Page 64: ... thickness is as specified in the power sources specification Particularly note the relation between cable length and thickness 8 Never fail to equip a leakage breaker where it is wet or moist 9 The following troubles would be caused by voltage drop down Vibration of a magnetic switch damage on the contact point there of fuse breaking disturbance to the normal function of a overload protection dev...

Page 65: ...the indoor and outdoor unit should be complied with the following specifications Rubber insulation type H07RN F approved by HAR or SAA NORMAL CROSS SECTIONAL AREA 0 75mm2 NORMAL CROSS SECTIONAL AREA 3 5mm2 18k 30k Btu 5 0mm2 31k 56k Btu Air Conditioner Main power source Circuit Breaker Use a 30A circuit breaker or time delay fuse CAUTION If a power plug is not to be used provide a circuit breaker ...

Page 66: ...t for all other motors Load3 any other load rated 1 0A or more 4 Select wire spec based on the MCA 5 Select proper circuit breaker as given below MCA Circuit breaker MOP 6 Recommended circuit breaker is ELCB Earth Leakage circuit breaker 7 MSC RLA are measured as the compressor only test condition 8 MSC values 23 1 14 0 MSC of inv comp const comp 9 RLA is measured during each individual compressor...

Page 67: ...ecuring screws To remove the Grille pull lower the left and right side of the grille toward you slightly tilted and lift it straight upward 2 Check the drainage Pour a glass of water on the evaporator Ensure if water flows drain hose of indoor unit without any leakage 2 Art Cool Type Indoor Unit Pour a glass of water on the evaporator Ensure the water flows through the drain hose of the indoor uni...

Page 68: ...u and lift it off 2 To check the drainage Pour a glass of water on the evaporator Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit 3 Drain piping The drain hose should point downward for easy drain flow Do not make drain piping Air filter Inlet Grille Do not raise Water leakage Tip of drain hose dipped in water Water leakage Ditch Acc...

Page 69: ... and lift it off To check the drainage 1 Pour a glass of water on the evaporator 2 Ensure the water flows through the drain hose of the indoor unit without any leakage and goes out the drain exit Drain piping 1 The drain hose should point downward for easy drain flow 2 Do not make drain piping like the following Pull the right and the left side Downward slope Do not raise Accumulated drain water T...

Page 70: ...drain with downward inclination 1 50 to 1 100 Prevent any upward flow or reverse flow in any part 5mm or thicker formed thermal insulator shall always be provided for the drain pipe 1 Install declination of the indoor unit is very important for the drain of the duct type air conditioner 2 Minimum thickness of the insulation for the connecting pipe shall be 5mm The unit must be horizontal or declin...

Page 71: ... The air conditioner uses a drain pump to drain water Use the following procedure to test the drain pump operation Connect the main drain pipe to the exterior and leave it provisionally until the test comes to an end Feed water to the flexible drain hose and check the piping for leakage Be sure to check the drain pump for normal operating and noise when electrical wiring is finished When the test ...

Page 72: ...m 25m 70m A B C D Max piping length each indoor unit Model Outdoor Unit Max total piping length 1 1 The maximun allowable level and piping length 15m 7 5m A B C D Outdoor Unit Indoor Unit 1 TPS Inverter Multi Multi Piping Type Indoor Unit Capacity Pipe Size Rated Max Additional Btu h Gas Liquid Length Length Refrigerant 7k 9k 12k 3 8 9 52mm 1 4 6 35mm 7 5m 25m 25g m 18k 24k 1 2 12 7mm 1 4 6 35mm 7...

Page 73: ...he outdoor unit in a lower position Total main piping length 50m Total branch piping length 50m L1 L2 L3 L4 L5 L6 Each branch piping length 15m L1 L2 L3 L4 L5 L6 Total system piping length 100m 40 60 A B Place the BD unit and indoor units within a level distance of 10m from each other BD Unit Main piping Branch piping Place the BD unit and indoor units within a level distance of 10m from each othe...

Page 74: ... 50m Total branch piping length 60m L1 L2 L3 L4 L5 L6 L7 Each branch piping length 15m L1 L2 L3 L4 L5 L6 L7 Total system piping length 110m 50 60 A B Place the BD unit and indoor units within a level distance of 10m from each other BD Unit Main piping Branch piping Place the BD unit and indoor units within a level distance of 10m from each other Outdoor Unit BD Unit BD Unit BD Unit A7UW486FA0 30 O...

Page 75: ...g length 50m Total branch piping length 70m L1 L2 L3 L4 L5 L6 L7 L8 Each branch piping length 15m L1 L2 L3 L4 L5 L6 L7 L8 Total system piping length 120m 50 70 A B Place the BD unit and indoor units within a level distance of 10m from each other BD Unit Main piping Branch piping Place the BD unit and indoor units within a level distance of 10m from each other Outdoor Unit BD Unit BD Unit BD Unit A...

Page 76: ...larm for gas leakage Change indoor unit type installation position should be over 2m from the floor Wall mounted type Cassette type Adoption of ventilation system choose ordinary ventilation system or building ventilation system Limitation in piping work design for earthquake proof and prevention against thermal stress Total amount of refrigerant in the system 0 3 kg m3 Volume of the room at which...

Page 77: ...ration of oil return it will be necessary to pro vide a trap at an appropriate place in the riser gas pip ing 2 3 Piping connection size Capacity is based on standard length and maximum allowance length is on the basis of reliability Oil trap should be installed every 5 7 meters In case more then 5m CAUTION Ø19 05 Gas mm Adjust to indoor unit piping size Ø 9 52 Liquid mm B A A6UW406FA0 Y Branch A ...

Page 78: ...it Insulator for field piping Tape field supply Liquid and gas pipe joints 2 5 Y Branch Standard accessory Ensure that the branch pipes are attached horizontally or vertically see the diagram below There is no limitation on the joint mounting configuration If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint the connecting section s...

Page 79: ...operation is started by pressing button for 2 seconds Cassette Type The test run is started by pressing button for 5 sec onds Cassette Type The test run is started by pressing timer cancel button five times continuously Room type To cancel the test run press any button 3 Settlement of outdoor unit Anchor the outdoor unit with a bolt and nut ø10mm tightly and horizontally on a concrete or rigid mou...

Page 80: ...er the ceil ing please change the slide switch which is on the Main PCB Assembly to the CEILING state The initial state of the slide switch is set for the bottom installation 1 Connection of power supply 1 Connect the power supply cord to the inde pendent power supply Circuit breaker is required 2 Prepare the remote control Insert two batteries provided Remove the battery cover from the remote con...

Page 81: ...est run press any button After completing work be sure to measure and record trial run properties and store measured data etc Measuring data are room temperature outside temperature suction temperature blow out temperature air velocity air volume voltage current presence of abnormal vibration and noise operating pressure piping temperature As to the structure and appearance check following items C...

Page 82: ... of time A well ventilated area Do not install near bedrooms The sound of refrigerant flowing through the piping may sometimes be audible For restrictions on installation refer to INSTALLATION For installation of the indoor units Follow the instructions in the installation manual for each unit System Layout Do not connect more than 8 indoor units together choose the distributor unit type 2rooms 3r...

Page 83: ...stalled in any direction forward or back and to the sides Be sure to leave a 600mm square opening for service and inspection as shown in the diagram below for both ceil ing suspended installation and wall mounted installation This unit does not require drain treatment as it uses internal foam treatment as low pressure piping insulation Service direction is the side B and C The piping for the indoo...

Page 84: ...g an insert hole in anchor hang the hanging bolt 3 Install a hexagon nut and a flat washer locally procured to the hanging bolt as shown in the figure in the left and ift the main unit to hang on the hanger metal 4 After checking with a level that the unit is level tighten the hexagon nut The tilt of the unit should be within 5 in front back and left right Procedure 1 Fix the fumished hanger metal...

Page 85: ...pe insulation material and the indoor unit pipe insulation material Bind them together with vinyl tape so that there is no gap 2 Wrap the area which accommodates the rear piping housing section with vinyl tape Close up a socket for unoccupied room with a brass cap 1 Align the center of the piping and sufficiently tighten the brass cap by hand 2 Tighten the brass cap with a wrench 3 Wrap the joint ...

Page 86: ...ection wires of indoor outdoor units to terminal board numbers 1 2 and 3 Always fix each ground wire separately with a ground screw See the figure below After completing the wiring fix the outer coating of wires securely with wire clamps The wire clamp on indoor unit side is furnished Follow the procedure below to install Refer to the circuit diagram on the control cover inside outdoor unit The te...

Page 87: ...s of the setting Soft Dry Operation 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 26 C Intake Air Temp 1 C 18 C Intake Intake Air Temp 24 C Intake Air Temp 0 5 C Intake Air Temp 18 C 18 C Wh...

Page 88: ...e indoor fan is operated for 15 seconds Then an operation mode is selected according to the intake air temp at that moment as follows 24 C Inatake Air Temp Fuzzy Operation for Cooling 21 C Inatake Air Temp 24 C Fuzzy Operation for Dehumidification Inatake Air Temp 21 C Fuzzy Operation for Heating If any of the operation modes among cooling dehumidification heating mode operations is carried out fo...

Page 89: ...mpressor OFF Temp Setting Temp 3 C At the beginning of Fuzzy mode operation the setting temperature is automatically selected according to the intake air temp at that time 20 C Intake Air Temp Intake Air Temp 0 5 C Intake Air Temp 20 C 20 C When the Fuzzy key Temperature Control key is input after the initial setting temperature is selected the Fuzzy key value and the intake air temperature at tha...

Page 90: ...ed direction While in Chaos Swing mode the angles of cooling and heating cycle operations are different Chaos Natural Wind Mode When the Chaos Natural Wind mode is selected and then operated the high medium or low speed of the air flow mode is operated for 2 15 sec randomly by the Chaos Simulation Jet Cool Mode Operation While in heating mode or Fuzzy operation the Jet Cool key cannot be input Whe...

Page 91: ... the slide switch position is switched from the forced operation position to the Auto Restarting position or the remote control position the forced operation is canceled and the appliance stops operating In the forced operation mode the indoor fan is operated at low speed for around 15 sec and then the opera tion condition is set according to the intake air temperature as follows 24 C Intake Air T...

Page 92: ...y switched from high to low speed The louver can be set at the desired position or swing up and down automatically Model base Split Type Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Time Delay Safety Control Indoor Fan Speed Control Operation indication Lamps LED Soft Dry Operation Mode Both the indoor and outdoor ...

Page 93: ...n speed is automatically switched from high to low speed The louver can be set at the desired position or swing up and down automatically Art Cool Type Indoor Unit Operation ON OFF by Remote controller Sensing the Room Temperature Room temperature control Starting Current Control Time Delay Safety Control Indoor Fan Speed Control Operation indication Lamps LED Soft Dry Operation Mode The function ...

Page 94: ...eating model only TEMPERATURE LOW HIGH Cooling Operation Mode Heating Operation Mode Auto Operation Mode Air Circulation Horizontal Airflow Direction Control Button Optional Room Temperature Checking Setting the Time or Timer Fan Speed Selection Low Med High ON OFF CANCEL SET 2nd F High 39 C Low 11 C OFF ON OFF ON Cancel Sleep Mode Timer ON or Timer OFF 1 2 3 4 5 6 7 Off Timer Fan Operates without...

Page 95: ...Program Cooling model only Heating model only Low Med High Cooling Operation Mode Heating Operation Mode Auto Operation Mode Soft Dry Operation Mode Fan Operation Mode Phase Control Setting HI MED LO Program Holiday SET CLR Min Hour Week Timer Cancel Timer Cancel Timer High 39 C LOW 11 C Fan Operates without cooling heating Cooling Heating Down to 18 C Up to 30 C Down to 16 C Up to 30 C ...

Page 96: ...ekly Program Cooling model only Heating model only Low Med High Cooling Operation Mode Heating Operation Mode Auto Operation Mode Soft Dry Operation Mode Fan Operation Mode HI JET AUTO MED LO Program Holiday SET CLR Min Hour Week Timer Cancel Timer Cancel High 39 C LOW 11 C Fan Operates without cooling heating Cooling Heating Down to 18 C Up to 30 C Down to 16 C Up to 30 C Operation ...

Page 97: ...l only TEMPERATURE LOW HIGH Cooling Operation Mode Heating Operation Mode Auto Operation Mode Air Circulation Horizontal Airflow Direction Control Button Optional Room Temperature Checking Setting the Time or Timer PLASMA Optional Fan Speed Selection Low Med High ON OFF CANCEL SET 2nd F CHAOS High 39 C Low 11 C OFF ON OFF ON Cancel Sleep Mode Timer ON or Timer OFF 1 2 3 4 5 6 7 Off Timer Fan Opera...

Page 98: ... to preheat oil Defrost Function After 35 min heating operation check the defrost condition and if outdoor pipe temp is below 6 C and released from deice operation in case outdoor pipe temp is over 15 C or 7 min cooing mode To deice outdoor heat exchanger in low temp condtion convert operating mode from heating to cooling in this case indoor and outdoor fan is off Oil Return System In heating oper...

Page 99: ...g Speed cooling heating operates super high fan speed CHAOS SWING BUTTON 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 opera tion TIME SETTING BUTTONS 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 SLEEP ...

Page 100: ...desired time is obtained Week Button Used to set a day of the week Program Button Used to set the weekly timer Holiday Button Used to set a holiday of the week Time Set Button Used to set the time of the day and change the time in the weekly timer Function Set and Clear Button Used to set and clear the weekly timer Room Temperature Checking Button Used to check the room temperature Reset Button Us...

Page 101: ...ned FAN Operation Button Used to circulate room air without cooling or heating Fan Speed Jet Cool Button 4 way Used to set the desired fan speed or select Jet cool mode Operation Mode Selection Button Used to select the operation mode Auto Operation Mode Cooling Operation Mode Soft Dry Operation Mode Heating Operation Mode except cooling model Auto Swing Button Used to swing up and down Room Tempe...

Page 102: ...temperature of main body and of remote controller sensor 3 Move the slide switch to set position 4 Close the rear cover and check if it works normally TH R14H SW TH REMO MAIN 2TH OP7 R18H R17H OP6 LO STAND SW HIGH HI R03S C070 R04S R02S R01S OP3 OP2 OP1 R19H R11H R13H R12H OP5R16H OP4 R15H CO1H REMO Room Temp sensor 2TH MAIN Position 2 Position 1 Position 3 Slide switch for 2Thermistor CAUTION Sel...

Page 103: ...ogram set SUB FUNCTION SET TEMP Room Temp HI MED LO Heater Defrost Filter Preheat Out door Time Timer On Set no Time Off 01 03 05 07 09 11 13 15 17 19 21 23 Indoor Unit 1 Terminal Local Supply Block Terminal Local Supply Block Terminal Local Supply Block Main PCB 1 Main PCB 2 Main PCB 16 Wired Remote Controller Slide Switch OP7 Remote Controller PCB Indoor Unit 2 Main PCB Indoor Unit 16 Connector ...

Page 104: ... P setting Fan speed is varied according to the state of dampers by micom 2 Position F H Maximum E S P setting Fan speed doesn t vary according to the opening Closing of dampers 3 Position V L Minimum E S P setting Fan speed is varied according to the state of dampers by micom Maximum 8mmAq Minimum 0mmAq 3 Move the slide switch to set position 4 Close the rear cover and check if it works normally ...

Page 105: ...lter Humidify Out door Set no Time emp 01 03 05 07 09 11 13 15 17 19 21 23 FAN SPEED HI 2 Timer 1 2 3 5 4 Timer Push the On Off button The unit will start Push the Timer and Wind button simultaneously for more then 3 seconds Push the Up of Down button for E S P adjustment And adjust the number which you want In this example the number is 225 Refer to the table 1 on the next page Shift the fan spee...

Page 106: ...5 CMM 210 200 100 12K 10 CMM 235 230 220 8 5 CMM 254 215 245 Chassis Static Pressure mmAq BH Setting Value 0 2 4 6 8 10 Ca Btu h Step Hi Med Lo 16 5 CMM 235 230 225 215 180 18K 14 5 CMM 245 238 235 230 215 13 CMM 254 252 248 245 240 18 CMM 220 205 190 170 1 24K 16 5 CMM 235 230 220 200 100 14 CMM 250 240 235 230 210 Chassis Static Pressure mmAq BG Setting Value 0 2 4 6 8 10 Ca Btu h Step Hi Med Lo...

Page 107: ...ing with red color TOTAL Off button Stop all linked units sequentially Individual On Off button Control ON OFF of a unit TOTAL On button Operate all linked units sequentially Easy operation button Independent operation for 16 indoor units each Simultaneous turn ON OFF for all of indoor units connected Easy change operation mode to cooling or heating Set and clear lock mode for each indoor unit Sim...

Page 108: ...ctions are to be done as shown above A and B are the communication lines for the indoor and C and D are the communication lines for the Central Control Use two shield lines for C D connecting line Earth the shield line Special purchase Central control PI485 PNF P14A0M SET The Address Group No Indoor No Refer to The Following sheet 1 3 5 Indoor unit Address setting method MAIN PCB INDOOR UNIT L CN_...

Page 109: ...ol Box 2 Connect the PI485 Module to central control 3 In the case of connecting two more than central control set the Master Slave mode and then connect each communication lines C D Refer to above fig Special purcharse Central control P No 4995A20105F PI485 Module PNF P14A0M It can be added to 15 Central controls for the slave control Slave DIP SWITCH Group Number 0 Master Mode Vcc GND C D CN POW...

Page 110: ... time is different according to indoor unit type 4 If the remote control is reset normal mode starts 2 Address Monitoring 1 Press 6 Chaos Swing 13 Reset key at the same time then Address Monitoring Mode starts 2 At the address monitoring mode pressing 1 On Off key The address that is set is displayed on a display window of indoor unit notice The mothod of display and time is different according to...

Page 111: ... off 16 key Cooling Setting basically Total On Total Off 4 key Heating Total On Total Off 8 key Red power lamp On 6 Check up On Off with a related indoor key pressing Installation CAUTIONS Do not install in this area Keep in mind Don t install near elevator computer auto matic door High noise area Don t install near high moisture high oscilla tion area Don t install near direct sunlight or heat so...

Page 112: ...necting wire Between controller and outdoor unit 220m 25Ω Between controllers 220m 25Ω 2 After attaching the supplied wire to terminal link the connecting wire If necessary Cut the indicated part of front case to draw the lead wire 1 Remove upper lower case 2 Fixate screw in the holes of the case bottom 3 For Dip switch and Rotary switch setting refer to the page How to Install 4 For wiring connec...

Page 113: ...y switch to the group number we want to control The above fig Shows the control of group number 0 Similarly we can control all the 16 Groups DIP SWITCH SETTING INSTALLATION FOR 2 OR MORE SIMPLE CENTRAL CONTROL ACCEASSORY PARTS Central control and sub with wire ass y should be purchased as optional Dip Switch Master Mode Slave Mode ON OFF Rotary Switch Screw 4EA Wire Assembly 2 Wire Assembly 1 Cent...

Page 114: ...l control enables the management room to setup lock of each air conditioner and prevent indoor control of the individual air conditioner and restrain the necessary use In case of releasing the lock you may control the system by using the wire wireless remote control at the place where the individual air conditioner is installed Setup of a weekly schedule is available and detailed schedule of the i...

Page 115: ...onditioner installed can self diagnosed its error status and then transmits the result to the central control Therefore a rapid countermeasure against failure of the air conditioner allows easy management and increases the usage life of air conditioner 4 Semi permanent Life Convenient Maintenance Since the Deluxe Central control is designed for the semi permanent use this system can be used semi p...

Page 116: ...lf power fail ure compensation battery is built in power is automatically converted by maximum 2 hours Therefore there is almost no malfunction due to a temporary power failure because stable operation is available 9 Mobility A wireless radio system may be installed at the Deluxe Central control it will control the Airconditioners directly while going around the building with the wireless radio sy...

Page 117: ...ailable Available 256sets1 Installation User S W Engine S W Required PC Central control Available Available Available 256sets Built in Main Body of Web Pad Deluxe Central control Non required Deluxe Central control Download to i GW Position of program 256sets Less than 128 sets recommended Max installation set numbers Available Configure file modification System setup Schedule management Available...

Page 118: ...he ctual time status of all air conditioners PQCSW501A0 PQCSW502A0 PQCSW501A0 PQCSW502A0 PQCSW502A0 PQCSW501A0 PQCSW502A0 System Set up To manage the air conditioner through grouping and record setup of group and installation position etc Time Schedule Setup of a weekly schedule for all group and individual air conditioner enabled operation of the system Processing through enlist of extra schedule...

Page 119: ...CNU Combination of maximum 8 outdoor units 485 to Ethernet Converter Built in 3 PI485 1 pcs per outdoor units Note GUI Graphic User Interface may be changed without any notice for improvement or options Scenario 1 In case of not using Internet access function Control System Interface Product CNU Delux Central Control CNU Central control Network interface Unit PI485 Product Interface unit for IEEE4...

Page 120: ...m the Chassis Set the up and down air discharge louver to open position horizontally by finger pressure Remove the securing screws To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward 1 To remove the sensor housing connect earth conductor step motor conductor with sensor holder Motor Evaporator P C B Screw Power Conductor Step...

Page 121: ...s securing the evaporator and the holder eva Unhook the tab on the right inside of the chas sis at the same time slightly pull the evapora tor toward you until the tab is clear of the slot 5 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flo...

Page 122: ...wer parts of panel front After pull down this panel a bit separate connecting wire with product 2 To remove the Control Box Before removing the control box be sure to disconnect the wires from PWB Pull the cover control out from the control box and disconnect other wires Remove securing screws Pull the control box out from the chassis carefully Step Motor Connectors Sensor Connector Comp Connector...

Page 123: ...ng the Turbo Fan Remove the securing screws from the chassis Pull the pipe cover top cover and the air guide 5 To remove the Motor Remove the securing bolt from the motor shaft Pull the fan out from the motor shaft Remove 4 screws securing motor mount from the chassis and lift up the motor mount and the brack et Top Cover Pipe Cover Air Guide Turbo Fan Bracket Bolt Motor Mount ...

Page 124: ...r switch is set to OFF To remove the Grille from the Chassis Hold up Inlet Grille Horizentally To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward To seperate connecter assembly and than to remove Inlet Grille assembly 1 Before removing the control box be sure to take out the wire screwed at the other end ...

Page 125: ...s Pull the control box out from the chassis careful ly 3 To remove the Discharge Grille Unhook the discharge grille and pull the dis charge grille out from the chassis carefully 4 To remove the Evaporator Remove 3 screws securing the evaporator at the left 2EA in the Eva Holder at the right 1EA ...

Page 126: ...o remove the Motor Cover Remove 2 securing screw Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left end of the cross flow fan from the self aligning bearing Motor cov...

Page 127: ...e the screws securing the side plate and push to the bottom side Unhook the hanger from the hanger screw at the left and the right side Pick out the inlet grille 3 Remove the lower air guide Remove a screw of both side fixing barrier air guide Remove the screws of both sides of the lower air guide Remove the lower air guide toward arrow mark by turning upwards as shown in figure R R R R 1 3 4 2 Ha...

Page 128: ...o OFF To remove the Grille from the Chassis Set the up and down air discharge louver to open position horizontally by finger pressure Remove the securing screws To remove the Grille pull the lower left and right side of the grille toward you slightly tilted and lift it straight upward 1 Before removing the control box be sure to take out the wire screwed at the other end ...

Page 129: ...rom the chassis carefully 3 To remove the Discharge Grille Unhook the discharge grille and pull the discharge grille out from the chassis carefully 4 To remove the Evaporator Remove 3 screws securing the evaporator at the left 2EA in the Eva Holder at the right 1EA Caution label When repair do not damage the Caution label ...

Page 130: ...Cover Remove 2 securing screw Pull the motor cover out from the chassis carefully 6 To remove the Cross Flow Fan Loosen the screw securing the cross flow fan to the fan motor do not remove Lift up the right side of the cross flow fan and the fan motor separate the fan motor from the cross flow fan Remove the left end of the cross flow fan from the self aligning bearing Disassembly of the parts ...

Page 131: ... fan motor shaft do not remove Remove the crossflow fan by sliding it out from the shaft of fan motor 5 Remove the control box Assembly Disconnect the step motor connector fan motor connector display PCB connector thermistor connector and door switch connector from the main PCB If necessary disconnect power supply cord and connecting cable from the terminal block and remove the cord clamp screw Re...

Page 132: ...s of both side of diffuser assembly 4 pieces Push the upper side of cabinet strongly to pull out the inner hook of diffuser frame from the cab inet hole Take up the diffuser frame carefully not so as to harm the display PCB wires and the step motor wires 8 Remove display PCB assembly Remove the screws at the both side of display cover If necessary disconnect the display PCB con nector from PCB ass...

Page 133: ...ide of screws 4 pieces Pull out the drain pan assembly Be careful not to harm to the EPS packing of drain pan and the tubings of evaporator 11 Remove the evaporator Remove the screws of both sides securing the EVA barrier R L on the side cabinet Remove the screws which fasten the barrier on the evaporator and take out the barrier assem bly Remove the evaporator assembly by sliding toward arrow mar...

Page 134: ...12 1K R15H 12 1K R16H 12 1K R14H 12 1K R11H 12 1K R12H 12 1K C01F 0 01 50V C02F 0 01 50V R34 60 SYNC 5 R67 AN7 R66 AN6 R57 PWM1 R55 BUZ R54 WDTO R52 Sclk R53 Srdy R56 PWM0 R46 T10 R47 T30 R51 Sout R62 AN2 R60 AN0 R61 AN1 R63 AN3 R64 AN4 R65 AN5 14 21 22 20 19 R50 Sin 17 18 16 15 10 13 12 11 6 9 8 7 R05 51 D5 R10 R07 R06 R14 R15 R13 R12 A4 A5 A3 A2 R11 A1 D7 D6 A0 44 43 45 46 Q D 48 47 49 50 S C R3...

Page 135: ...Service Manual 135 Schematic Diagram 2 Art Cool Type ...

Page 136: ...136 Multi type Air Conditioner Schematic Diagram 3 Art Cool Deluxe Type ...

Page 137: ...005 TNY255P IC01D 5 TNY 255P 2 S 1 4 D02D 3 D BP EN 4 5 UF5402 S Trans 1 6 7 GND 3 GND 3 CN_ZONE 36 33 34 35 39 37 38 40 41 44 42 43 45 46 7 8 Multi_RX Multi_TX 5V 12V 5V 6 5 2 4 3 GND 6 1 4 5 CS0 7 8 CS1 6 5 SCK1 SI1 2 4 3 SO1 12V 5V PLC_SEL Multi_RX Multi_TX 6 1 GND 4 5 CN PIPE CN ROOM CN_M C ZD02D 57 52 48 49 47 50 51 53 54 55 56 60 58 59 61 62 11V 64 63 STEP M KID65004AF IC02M DC 12V 12V 5V 1 ...

Page 138: ...4 50V C04D ZBF503D 39 R03D 330 C06D 25V SD 1 8W 2012 TNY266P EN BP 4 1 IC01D 2 3 7 8 S 5 D 104 C02D 4 3 TLP181 V4 BL INT IC03D 15uF C01D 450V SG STO2D 200 SD01D D07D UG2D SMPS 3 1 L DC HIGH TVR10561 ZNR01J C02J 47nM 275V 435D METAL FILM VOLTAGE GND C01J METAL FILM 100nM 275V 436D 1 1 CN TAB1 N L 50 60Hz AC220 240V RY D PUMP G5N 1A G5NB 1A G5N 1A G5NB 1A 250V T2A G5N 1A G5NB 1A RY 4WAY 3216 1 8W 20...

Page 139: ...2M H Press INT 4 7K RY HEATER RY FAN2_L RY 4WAY RY SV 311V D01N D04N 1SR139 600 680 1 D06N 1N4148 103 C02N C01N 100UF 5V 1N4148 R02N 1 65K 1 D05N R01N CT01N C17D CN_TH4 RC03M RC02M RC01M CN_TH5 CN_TH3 TEST S W 4 10 11 3 2 12 8 1 15 14 13 9 17 16 KRA107M Q01Z BUS_ADDR_LEV BUS_COM R01H R05H 5 2 3 4 9 7 8 6 U P V W N B IPM 6 9 8 7 5 4 3 2 15 V 104 104 104 104 104 1 4 3 2 6 7 5 8 9 3 2 1 5 6 7 4 1 1 1...

Page 140: ... R09Z R08Z R10Z R12Z R11Z C06P C08P R18P R20P 1K R20P 2012 102M 22 R02Z TX CC RX CC R05Z R01Z R06Z R06Z 100 2012 R04Z R03Z 4 7K 31 TX_Flash R02T PWM 27 5V 29 30 28 23 25 26 24 5V CN WRITER 2012 2012 KIA7036P 104 C03A 2 R01Z 3 C01A 3 3UF 50V 2012 C02A 102 4 7K 2012 R01A IC01A 5V A0 R02A 100 1K R03A SDA 5 4 M24C08 EEPROM RESET R01B 5V OSC01B 4MHz 0 R01T 4 7K 17 19 18 20 21 14 13 Vss 12 16 Vcc1 15 Xi...

Page 141: ..._D0 102 25V C02K 1 5K R08K IK R14K 10K R13K 10K R07K IK R02K D04K ERA15 06 R22K R28K 82K 3W D03K ERA15 06 R21K R27K 82K 3W ERA15 06 D10K ERA15 06 D09K D02K ERA15 06 R20K R26K 82K 3W D01K R19K R25K 82K 3W D08K ERA15 06 ERA15 06 D07K IC02K TLP627 TX_D0 BUS_COM 5V 1 5K R01K DC310V 4 15 245 R02M 10K IC02M 245 GND A6 A7 9 10 8 A5 A4 A3 6 7 5 1 A2 A1 A0 3 4 2 QE 4 4 6 5 6 5 1 1 3 2 3 2 A7 GND 10 9 A4 A6...

Page 142: ...L RXD0 4 7K R03Y C06Y 104 U04Y 6N137 TXD0 SEL RXD0 5 1K 4 7K R05Y R06Y 0 62K 6 3 1 2 8 7 4 5 LED1 0 33K R07Y R04Y 1 2 4 3 7 8 5 6 1K 8 7 5 6 1 2 3 4 ZNR01Y SVC220D 07B R09Y MAX253 U05Y TXD0 6 3 5 4 C07Y 7 2 0 62K R01Y C08Y 104 4 3 U03Y 6N137 5 6 D02Y SS12 6N137 U02Y 1 8 104 R02Y 5 1K SN65LBC176 U01Y 1K R08Y C05Y C03Y 22uF 35V C02Y 8 7 1 2 3 6 5 4 SS12 D01Y 2 1 Trans01Y C09Y 104 7805 KID78L05BP IC0...

Page 143: ... CN SW 2 CN SW 3 CN STEP2 CN STEP1 CN MAIN CN SW 1 ZNR MOTOR MAIN PCB ASM CONNECTOR PCB ASM CN U D CN HVB H V B A CL OR STEP MOTOR CN L R STEP MOTOR SUC STEP MOTOR 2 SUC STEP MOTOR 1 DISPLAY LIMIT S W 1 LIMIT S W 2 FORCED OPERATION S W BK BR BL RD GN YL YL GN YL RD RD BK BK CN TH1 CN VFD THERMISTOR OUT PIPE THERMISTOR IN PIPE THERMISTOR ROOM CN TH2 BR 3854A20419A CN REMO CN PIPE1 RF REMOTE CONTROL...

Page 144: ...R HVB A CL UNIT S W2 S W1 CN UD1 STEP MOTOR CN DISP DISPLAY PCB ASSY FLOAT S W CN CC CN ACDC CN ACDC CENTRAL CONTROL IN PIPE THERMISTOR 3854A20419C REMOTE CONTROL OPTION CN REMO CN PTC CN FLOAT CN DPUMP CN MOTOR TO OUTDOOR UNIT FUSE GN YL BL BR 1 L 2 N 3 WIRING DIAGRAM CN ROOM ROOM THERMISTOR CN PIPE2 OUT PIPE THERMISTOR CN PIPE1 IN PIPE THERMISTOR CN HVB DOOR S W HVB A CL UNIT CN UD1 STEP MOTOR S...

Page 145: ...V 4WAY VALVE CN HEATER CN P ICE CN PRESS CN OIL S CRANKCASE HEATER DEFROST HEATING SV SV LOW PRESS SWITCH OIL SEPERATOR RY C COMP GND 1 GND 2 BL BR RD CONSTANT COMPRESSOR C R S RD BL BL BR BK WH BR BR BR BR BL BL BL L N 1 L 2 N 3 L 4 N 5 A 3 L 4 N 5 C 5 D 5 B POWER SUPPLY TO INDOOR UNIT A ROOM B ROOM C ROOM D ROOM LEV LEV LEV LEV CN LEV1 CN LEV3 CN LEV2 CN LEV4 CN TH2 CN TH1 CN TH3 CN TH4 DISP I S...

Page 146: ...RAL CN JIG PC CN WRITER BK BK REACTOR CN COIL2 CN COIL1 OR BL BR RD BL BK BR YL CN FAN A FAN LOW PRESS SWITCH OIL SEPERATOR CONSTANT COMPRESSOR C R S BK BL BR WH RD BR L N BR BR BL BL BL 1 L 2 N 3 L 4 N 5 A 3 L 4 N 5 C 5 D 5 B POWER SUPPLY TO INDOOR UNIT A ROOM B ROOM C ROOM D ROOM SV SV 3854A20354M OLP WIRING DIAGRAM MAIN PCB INV COMP A RD BL YL RD U CN LEV1 CN CENTRAL CN JIG PC CN OIL S CN PRESS...

Page 147: ...Service Manual 147 Schematic Diagram 1 Indoor Unit MAIN P C B ASM 1 Split Type Components Locations DC part AC part ...

Page 148: ...148 Multi type Air Conditioner Schematic Diagram 2 Art Cool Type TOP VIEW BOTTOM VIEW ...

Page 149: ...J JP31 IC01J R03K D02K D01K NF02J ZNR02J TR01J CN POWER R01J JP28 JP29 C03J JP33 CN U D W H JP12 CN CON BL C06D Q01C JP9 JP2 C01L JP22 BC01D R05D R02J D02D R06D C02D D05D R05V JP26 R02D R03D R06V JP15 C05D ZD02D IC02D IC01D JP36 JP24 JP21 JP37 Q02V R04E R08D JP17 JP18 JP38 C01D SMPS SD01D JP35 ZNR01J JP30 NF01J C01J NTC C05J EARTH CN CC FUSE 250V T2A R23G R21G R22G R24G C10D Q03E Q01E R01E R02E JP...

Page 150: ...150 Multi type Air Conditioner Schematic Diagram 4 Duct Type High static BH BG chassis Built in type BP chassis ...

Page 151: ...Service Manual 151 Schematic Diagram Low static BT BT1 chassis ...

Page 152: ...152 Multi type Air Conditioner Schematic Diagram 5 Casset Type 1 way TC chasis ...

Page 153: ...Service Manual 153 Schematic Diagram 4 way TE TF TD chasis 58 B ...

Page 154: ...154 Multi type Air Conditioner Schematic Diagram 6 Convertible type VE chassis AC part DC part TOP VIEW BOTTOM VIEW TOP VIEW BOTTOM VIEW ...

Page 155: ...Service Manual 155 Schematic Diagram VB chassis ...

Page 156: ...lti type Air Conditioner Schematic Diagram 2 Display ASSEMBLY 1 Split Type 2 Convertible Type VE chassis TOP VIEW BOTTOM VIEW VB chassis 3 Art Cool Type BOTTOM VIEW TOP VIEW PWB ASM 6871A20390 PCB 6870A90065K ...

Page 157: ...Cool Deluxe Type TOP VIEW BOTTOM VIEW SEJIN ELECTRON INC SVM GP1119AI P N 3210018043 1 REV1 C13 C7 C8 C9 D1 Q1 Q2 R9 R13 R2 R6 R7 R8 R10 TP1 TP2 TP3 TP4 R17 R18 R19 C14 C15 C18 R4 R3 TP5 TP6 M42 M43 C19 C20 C21 R5 M45 M44 TP1 TP2 TP3 TP4 TP7 TP8 ...

Page 158: ...158 Multi type Air Conditioner Schematic Diagram 3 Outdoor Unit 1 Component side ...

Page 159: ...Service Manual 159 Schematic Diagram 2 Solder side ...

Page 160: ...160 Multi type Air Conditioner Schematic Diagram 3 Central control PCB 2 Bottom View 1 Top View ...

Page 161: ...Service Manual 161 4 SUB P W B ASSEMBLY 1 Art Cool Type TOP VIEW BOTTOM VIEW Schematic Diagram ...

Page 162: ...rant Flow Room B Room A Room B Room C Room A Cooling Heating Low Pressure S W Drier Th1 LEV A LEV B Th3 Accumulator Compressor Heat Exchanger Header OUTDOOR UNIT Reversing Valve Th3 Room C LEV C Th2 1 A2UW186FA0 A2UW146FA0 A3UW186FA0 Troubleshooting Guide Troubleshooting Guide Refrigeration Cycle Diagram ...

Page 163: ...m A Field Piping Liquid Room B Room C Room D Room A Room B Field Piping 4 room model 4 room model Gas Accumulator Constant Compressor Low Pressure S W Inverter Compressor Solenoid Valve 2 Heat Exchanger Check Valve 2 Check Valve 1 Reversing Valve Oil Seperator OUTDOOR UNIT Refrigerant Flow Cooling Heating Troubleshooting Guide ...

Page 164: ...iping Gas Room B Room D Room C Room A Room B Room D Field Piping Liquid Accumulator Low Pressure S W Constant Compressor Inverter Compressor Solenoid Valve 1 Solenoid Valve 2 Heat Exchanger Reversing Valve Check Valve 2 Check Valve 1 OUTDOOR UNIT Oil Seperator Refrigerant Flow Cooling Heating Troubleshooting Guide ...

Page 165: ...or Low Pressure S W Receiver Solenoid Valve 1 Constant Compressor Inverter Compressor Accumulator Heat Exchanger Reversing Valve OUTDOOR UNIT Field Piping Gas Ø 19 05 Field Piping Liquid Ø 9 52 Refrigerant Flow Cooling Heating Notes Th Thermistor L E V Linear Expansion Valve Troubleshooting Guide ...

Page 166: ...gerant Flow Indoor Unit D Liquid Ø6 35 C Liquid Ø6 35 B Liquid Ø6 35 A Liquid Ø6 35 D Liquid Ø9 52 C Liquid Ø9 52 or Ø12 7 B Liquid Ø9 52 or Ø12 7 A Liquid Ø9 52 or Ø12 7 Cooling Heating Main Liquid Piping Ø 9 52 Outdoor Unit LEV D LEV C LEV B LEV A Troubleshooting Guide ...

Page 167: ...or 2 Constant Compressor 1 Inverter Compressor Oil Seperator Check Valve 3 Check Valve 2 Check Valve 1 Accumulator Heat Exchanger Reversing Valve Drier Receiver OUTDOOR UNIT Field Piping Gas Ø 19 05 Field Piping Liquid Ø 9 52 Refrigerant Flow Cooling Heating Low Pressure S W Th6 6 A7UW486FA0 A8UW566FA0 ...

Page 168: ...t 5times OFF 06 Indoor Out Piping sensor error 6times OFF 07 Differnt mode operation 7times OFF Outdoor Error Error Code Description INV TPS LED 1 Red LED 2 Green Indoor Status 21 DC Peak IPM Fault 2times 1time OFF 22 CT 2 Max CT 2times 2times OFF 23 DC Link Low Volt 2times 3times OFF 24 L_P Heater Sink 2times 4times OFF 25 Low voltage Over voltage 2times 5times OFF 26 DC Comp Position Error 2time...

Page 169: ...le Notice 1 The suction pressure is usually 4 5 6 0 kg cm2 G at normal condition 2 The temperature can be measured by attaching the thermometer to the low pressure tubing and wrap it with putty Temp difference approx 0 C Current less than 80 of rated current Temp difference approx 8 C Current less than 80 of rated current Temp difference less than 8 C Current near the rated current Temp difference...

Page 170: ... voltage of power AC220V AC240V 50Hz The voltage of main power The voltage applied to the unit The connecting method of Indoor Outdoor connecting cable each color The P W B Ass y Fuse Noise Filter Power Transformer IC01D IC02D etc Trouble 1 NO YES The operation check of the P C B Ass y Procedure 1 The input voltage of power trans former 2 The output voltage of power transformer 3 IC01D 7812 4 IC02...

Page 171: ...eeping Mode the wind speed is set to the low speed as force Caused by the remote controller Caused by other parts except the remote controller When the mark is displayed in LCD screen replace battery Check the contact of CN DISP 1 connector When the detect switch double key inside the remote controller door is fault it is impossible to operate temperature regulating and wind speed selecting Check ...

Page 172: ...ssor Outdoor fan is stopped Check the related circuit of R02H 12 1K R01H 1K R04H 6 2K R03H 1K C01H 102 C02H 102 Micom pin No Check the Indoor temperature sensor is disconnected or not about 10K at 25 C Check the Relay RY PWR RY START for driving Compressor Check the voltage between brown and blue cable of terminal to connect the Outdoor About AC220V 240V Check the related circuit of relay in Outdo...

Page 173: ... the Fan Motor Check the Fuse AC250V T2A Turn on the main power Check the related circuit of indoor Fan Motor The pin No 38 of micom and the part for driving SSR Q01M Check the related pattern Check the SSR SSR Open Indoor Fan Motor never operate SSR short Indoor Fan Motor always operates in case of ON or OFF The voltage of Pin No 1 orange and 3 black of CN FAN About AC 160V over About AC 50V over...

Page 174: ... of CN U D or CN0L R Connector Check the operating circuit of the vertical louver Confirm that there is DC 12V between pin of CN U D CN0L R and GND Confirm that there is a soldering short at following terminals Between 1 2 3 and 4 of MICOM Between 17 18 19 and 20 of MICOM Between 4 5 6 and 7 of IC01M Between 5 6 7 and 8 of IC01M When the louver does not operate Trouble 5 If there are no problems a...

Page 175: ...usly lower number of error code is first displayed After error occurs if error is released error LED is also released simultaneously Indoor Error 1 digit 10 digit Case of error Contents Error code Open Short Outlet pipe sensor 06 Different operation mode Different operation mode 07 Communication Poorly Float switch Open Communication Poorly Open Short Open Short Air sensor open short 01 Inlet pipe...

Page 176: ...lt Is 140V Low High press switch OPEN Abnormal AC volt Input Off Off Off IPM Fault Compressor Over current CT 2 Max Current DC Link Low Volt Low High press AC Low AC High Volt DC Compressor Position PSC Fault DC Link High Volt Discharge Pipe Temp High INV Discharge Pipe Temp High Cons 21 22 23 24 25 26 27 28 32 33 Off Off Off Off Off Off Off Off Off Off Outdoor Status 2 times 2 times 2 times 2 tim...

Page 177: ...sensor INV open short Air sensor open short Cond Pipe sensor open short Suction pipe sensor open short D pipe sensor Cons open short Over capacity Communication Indoor Outdoor EEPROM check sum Cond Pipe sensor temp high Heat sink sensor temp high Heat sink sensor open short 40 41 44 45 46 47 51 53 60 61 62 65 Off Off Off Off Off Off Off Off Off Off Off Off Outdoor Status 4 times 4 times 4 times 4 ...

Page 178: ...Normal voltage 2 5Vdc at 25 C plugged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Display code Title Cause of error Check point Normal condition Check Point 1 Unplug the sensor on Indoor unit PCB 2 Estimate the resistance of each sensor 3 If the resistance of the sensor is 10KΩ 5KΩ at 25 C then sensor is normal 4 If the resistance of the sensor is 0 KΩ or then senso...

Page 179: ...PCB Volt DC12V Noise interference Display code Title Cause of error Check point Normal condition Check Point 1 Check the wire connection Open Short Repair the connection 2 Check the soldering state of connector Soldered poorly Repair or Change the PCB 3 Check the volt Of main PCB power source DC 12V DC 5V Repair or Change the main PCB 4 Check the installation of wired remote controller Noise inter...

Page 180: ...ump power input 220V Drain tube installation Indoor unit installation Inclination Display code Title Cause of error Check point Normal condition Check Point 1 Check the wire connection Open Soldered poorly Repair the connection or change the PCB 2 Check the resistance of float switch Abnormal Open Normal short Check the float switch 3 Check the level of water 4 Check the volt Of Drain pump power s...

Page 181: ...ode Title Cause of error Check point Normal condition Check Point 1 Check the input power AC230V Outdoor Indoor unit 2 Check the communication wires are correctly connected Adjust the connection of wire Confirm the wire of Live Neutral 3 Check the resistance between communication line and GND Normal Over 2MΩ 4 Check the connector for communication is correctly connected 5 Check the connection of G...

Page 182: ...se Comp lock The abnormal connection of U V W Over load condition Overcharging of refrigerant Pipe length Poor insulation of compressor Display code Title Cause of error Check point Normal condition Check Point 1 Check the wire connection U V W 2 Check the load condition Refrigerant Pipe length Adjust the load condition 3 Check the electricity leakage of the compressor Normal Over 2MΩ 4 Check the ...

Page 183: ...put Refrigerant pipe length blocked Malfunction of current detection circuit Open Short The voltage of C01N Is 4 0Vdc 25A Display code Title Cause of error Check point Normal condition Check Point 1 Check the power source 2 Check the fan operation is right 3 Check the current 4 Check the install condition 5 Check the internal circuit C T Diode Resistor Troubleshooting Guide ...

Page 184: ...ge DC link volt is 140Vdc DC link volt is 420Vdc Check the power source Check the components Check the power source Check the components Display code Title Cause of error Check point Normal condition Check Point 1 Check the power source 2 Check the components B Diode Reactor PSC Parts Troubleshooting Guide ...

Page 185: ...f CN_Press Check the components Check the power source Check the components Display code Title Cause of error Check point Normal condition Check Point CH 24 1 Check the connection of CN_PRESS 2 Check the install condition for over load 3 Check the SVC V V open 4 Check the leakage of refrigerant CH 25 1 Check the power source 2 Check the components Trans1 B Diode Diode Resistance Troubleshooting Gu...

Page 186: ...ection of comp wire U V W Malfunction of compressor Check the component of IPM detection parts Check the component of IGBT Check the components Display code Title Cause of error Check point Normal condition Check Point CH 26 1 Check the connection of U V W 2 Check the insulation of IPM part 3 Check the compressor same with CH21 CH 27 1 Check the component of IGBT 2 Check the components IGBT R04S N...

Page 187: ...k the install condition for over load Check the leakage of refrigerant Check the SVC V V open Check the discharge pipe sensor for Cons Check the install condition for over load Check the leakage of refrigerant Check the SVC V V open Display code Title Cause of error Check point Normal condition Check Point CH 32 1 Check the install condition for over load 2 Check the SVC V V open 3 Check the leaka...

Page 188: ...ed Normal voltage 4 5Vdc at 25 C plugged Normal resistor 10KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Normal resistor 5KΩ at 25 C Unplugged Normal voltage 2 5Vdc at 25 C plugged Normal resistor 200KΩ at 25 C Unplugged Normal voltage 4 5Vdc at 25 C plugged Normal resistor 10KΩ at 25 C Unplugged Normal voltag...

Page 189: ... Check the poor soldering Display code Title Cause of error Check point Normal condition Check Point CH 51 1 Check the indoor unit capacity CH 60 1 Check the insertion condition of EEPROM 2 Check the poor soldering Troubleshooting Guide Model Gross max capacity Max single indoor unit capacity A2UW146FA0 21k 12k A2UW186FA0 24k 12K A3UW186FA0 A3UW246FA0 33k 18K A4UW246FA0 A4UW306FA0 39k 18K A6UW406F...

Page 190: ...condition Check the sensor of Condenser pipe sensor Check the fan is locked Check the sensor of heat sink Display code Title Cause of error Check point Normal condition Check Point CH 61 1 Check the install condition for over load Refrigerant Pipe length Blocked CH 62 1 Check the fan is locked 2 Check the Outdoor temp is very high COMP Frequency Hz Toff C T1 C T2 C OFF Normal Normal Normal Heat Si...

Page 191: ...n Open Open Open Servicing connected manifold gauge Gas charging Open Open Open Servicing with charging cylinder Pressure check Open Open Open Servicing connected manifold gauge Gas releasing Open Open Open Servicing connected manifold gauge 3 2 1 4 5 6 Valve cap Open position Closed position Pin Service port Service port cap To piping connection To outdoor unit Valve cap Open position Closed posi...

Page 192: ...rge from the hose 5 Set the liquid side valve to the closed position 6 Operate the air conditioner at the cooling cycle and stop it when the gauge indicates 1kg cm2 g 7 Immediately set the gas side valve to the closed position Do this quickly so that the gauge ends up indicat ing 1kg g 8 Disconnect the charge set and mount the liquid side and gas side valve caps and the service port nut Use torque...

Page 193: ...oved toward 76 cmHg vacuum of 4 mmHg or less 5 Close the Low handle of the gauge turn off the vacuum pump and confirm that the gauge needle does not move approximately 5 minutes after turning off the vacuum pump 6 Disconnect the charge hose from the vacuum pump Vacuum pump oil If the vacuum pump oil becomes dirty or deplet ed replenish as needed 7 Mount the valve caps and the service port caps Ind...

Page 194: ...ditioner in the cooling cycle however one time is not suffi cient wait approximately 1 minute and then repeat the procedure pumping down pin 4 Immediately disconnect the charge hose from the gas side valve s service port Stopping partway will allow the gas to be dis charged If the system has been charged with liquid refrigerant while operating the air conditioner turn off the air conditioner befor...

Page 195: ...0 146811 263230 1 268716 131410 359011 342800 159901 135316 268712 159830 354210 135311 135316 267110 249951 733010 152313 135314 152302 35211B 135516 W0CZZ 352150 266090 268715 352116 352115 263230 2 Exploded View Replacement Parts List Indoor Unit SQ SR chassis ...

Page 196: ...T 3623AQ3226T R 263230 2 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A 6323A20004A 6323A20004A R 266090 H V ASSEMBLY 6609A10003J 6609A10003J 6609A10003H 6609A10003H R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20067J 6711A20067J 6711A20067J 6711A20067J R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20194A 6871A20194A 6871A20390A 6871A20390A R 268715 PWB PCB ASSEMBLY MAIN AC 6871A20267B 6871A20267B 6871A20267B 6...

Page 197: ...ent Parts List 346810 35211B 135516 W0CZZ 352150 267110 146811 266090 263230 1 268715 268716 131410 359011 342800 159901 1 159901 2 268712 135316 159830 135311 352111 135316 249951 733010 152313 135314 152302 352115 352116 263230 2 ST chassis ...

Page 198: ...226T 6323AQ3226T R 263230 2 THERMISTOR ASSEMBLY 6323A20004A 6323A20004A R 266090 H V ASSEMBLY 6609A10003L 6609A10003L R 267110 REMOTE CONTROLLER ASSEMBLY 6711A90022J 6711A90022J R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20194B 6871A20194B R 268715 PWB PCB ASSEMBLY MAIN AC 6871A20267B 6871A20267B R 268716 PWB PCB ASSEMBLY MAIN DC 6871A20440E 6871A20440F R 342800 BEARING 4280A20004A 4280A20004A R 34681...

Page 199: ...0 2 135311 1 146811 2 147581 330870 135311 3 146811 3 346810 135500 1 146811 2 135311 2 131410 352380 352150 35211B 263230 2 263230 1 147581 152302 135314 268712 268717 135316 354210 144710 2 146811 146811 144710 1 147581 352116 352115 249951 266090 268714 2 159830 268714 1 SP1 chassis Art cool type ...

Page 200: ...5230A20032A 5230A20032A 5230A20032A 5230A20032A R 159830 AIR CLEANER ASSEMBLY 5983A20007F 5983A20007F 5983A20007F 5983A20007F R 249951 CONTROL BOX ASSEMBLY INDOOR 4995A20372H 4995A20372N 4995A20372J 4995A20372P R 249941 CONTROL BOX INDOOR 4994A10046A 4994A10046A 4994A10046A 4994A10046A R 268715 PWB PCB ASSEMBLY MAIN AC 6871A20380D 6871A20380D 6871A20380D 6871A20380D R 268716 PWB PCB ASSEMBLY MAIN ...

Page 201: ... 346810 131410 146811 135311 135080 1 135080 2 263020 668713 2 135511 135313 342800 267110 266090 359011 146811 1 668713 1 135316 146811 145200 152302 159830 263230 1 263230 2 35211B 352111 352114 352118 Exploded View Replacement Parts List Art Cool Deluxe Type SU SZ chassis ...

Page 202: ...0A20015B 5990A20015B R 249951 CONTROL BOX ASSEMBLY 4995A20323K 4995A20323L 4995A20232M R 249941 CONTROL BOX INDOOR 4994A20067A 4994A20067A 4994A20067A R 263020 DIGITRON 6302A90003A 6302A90003A 6302A90003A R 263230 1 THERMISTOR ASSEMBLY Out 6323AQ2226T 6323AQ2226T 6323AQ2226T R 263230 2 THERMISTOR ASSEMBLY Room In 6323A20004A 6323A20004A 6323A20004A R 266090 HUB ASSEMBLY 6609A10005B 6609A10005A 660...

Page 203: ...03 354210 152302 237210 552111 352118 330860 268714 249951 267110 346810 359012 359012 W0CZZ 336610 2 336610 1 263230 3 263230 2 263230 1 352111 Exploded View Replacement Parts List Duct Type High Static BH BG chassis ...

Page 204: ...20416J R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20100A 5421A20100B 5421A10027A 5421A10027A 5421A10027A R 359012 1 FAN ASSEMBLY BLOWER Single 5901A10026A 5901A10026A 5901A10026A 5901A10026A 5901A10026A R 359012 FAN ASSEMBLY BLOWER Motor 5901A10028B 5901A10028B 5901A10028J 5901A10028J 5901A10028A R 552111 TUBE ASSEMBLY CAPILLARY 5211A20466K 5211A20466L 5211A20693D 5211A20693D 5211A20693D R WOCZZ CAPA...

Page 205: ...anual 205 336610 359012 1 346810 152302 359012 2 552111 354210 249951 352118 330860 W0CZZ 268714 267110 263230 1 263230 2 263230 3 352111 Exploded View Replacement Parts List Duct Type Low Static BT BT1 chassis ...

Page 206: ...SSEMBLY MAIN 6871A10131A 6871A10131B 6871A10131G R 330860 DRAIN PAN ASSEMBLY 3087A10015C 3087A10015C 3087A10015B R 336610 HOUSING MECH WRAPPER 3660A20033A 3660A20033A 3660A20033A R 346810 MOTOR ASSEMBLY INDOOR 4681A10022B 4681A10022B 4681A10022A R 352118 TUBE ASSEMBLY MENIFOLD INDOOR 5211A10418B 5211A25011B 5211A10418C R 354210 EVAPORATOR ASSEMBLY FIRST 5421A20153B 5421A21002A 5421A20153A R 359012...

Page 207: ...t in Duct type BP chassis 158591 137214 336610 2 359012 1 336610 1 359012 249951 137210 330860 352111 352118 137202 152302 354210 346810 268714 267110 1 263230 1 267110 2 263230 2 263230 3 Exploded View Replacement Parts List ...

Page 208: ...LY OUT 6323AQ3226V 6323AQ3226V R 267110 REMOTE CONTROLLER ASSEMBLY 6711A10008U 6711A10008U R 268714 PWB PCB ASSEMBLY MAIN 6871A10140G 6871A10140H R 330860 DRAIN PAN ASSEMBLY 3086A10036A 3086A10036A R 336610 1 HOUSING MECH WRAPPER 3660A20017A 3660A20017A R 336610 2 HOUSING MECH WRAPPER 3660A20018A 3660A20018A R 346811 MOTOR ASSEMBLY INDOOR 4681A10031A 4681A10031A R 352118 1 TUBE ASSEMBLY MENIFOLD O...

Page 209: ...is Exploded View Replacement Parts List 266090 135802 135312 152312 359011 352116 352115 159830 249951 140570 146811 152302 137211 267110 2 267110 1 268712 330860 346810 354212 158591 130911 W1SZ 263230 3 268714 354210 266012 W0CZZ 263230 2 263230 1 ...

Page 210: ...BLY ROOM 6323AQ3214P 6323AQ3214P 6323AQ3214P R 266012 SWITCH ASSEMBLY FLOAT 6601A20001E 6601A20001E 6601A20001E 6601A20001E R 266090 HVB ASSEMBLY 6690A20005C 6690A20005C 6690A20005C 6690A20005C R 267110 1 REMOTE CONTROLLER ASSEMBLY 6711A10008V 6711A10002Q 6711A10008V 6711A10002Q R 267110 2 REMOTE CONTROLLER ASSEMBLY WIRELESS 6711A20096B 6711A20096B Option 268712 PWB PCB ASSEMBLY DISPLAY 6871A20096...

Page 211: ...Service Manual 211 Exploded View Replacement Parts List Cassette Type 4 way TE chassis 263230 1 263230 2 263230 3 249951 266090 159830 266012 35211A 354211 268714 330870 352118 158591 352111 ...

Page 212: ...212 Multi type Air Conditioner Exploded View Replacement Parts List 137211 268712 130411 359011 152312 135802 130911 2 267110 1 267110 2 352150 130911 1 W4056 346811 146811 135312 2 W0CZZ ...

Page 213: ...AQ3226F R 263230 3 THERMISTOR ASSEMBLY ROOM 6323A10002A 6323A10002A 6323A10002A 6323A10002A R 266012 SWITCH ASSEMBLY FLOAT 6601A20001G 6601A20001G 6601A20001G 6601A20001G R 266090 H V ASSEMBLY 6609A20005C 6609A20005C 6609A20005C 6609A20005C R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20096J 6871A20096J 6871A20096J 6871A20096J R 268714 PWB PCB ASSEMBLY MAIN 6871A10158D 6871A10338U 6871A10158C 6871A10338...

Page 214: ...i type Air Conditioner Exploded View Replacement Parts List Cassette Type 4 way TF chassis 249951 266090 268714 330870 159830 263230 1 354211 1 158591 263230 2 352118 1 266012 552111 352118 2 354211 2 263230 3 ...

Page 215: ...Service Manual 215 Exploded View Replacement Parts List 346810 130411 359012 152312 135314 W0CZZ 137211 267110 1 267110 2 130911 1 130911 2 268712 146811 ...

Page 216: ...6601A20001H R 266090 H V ASSEMBLY 6609A20005E 6609A20005E 6609A20005E 6609A20005E R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20096J 6871A20096J 6871A20096J 6871A20096J R 268714 PWB PCB ASSEMBLY MAIN 6871A10158B 6871A10209M 6871A10158R 6871A10338W R 267110 1 REMOTE CONTROLLER ASSEMBLY 6711A20076N 6711A20076K 6711A20076N 6711A20076K R 267110 2 REMOTE CONTROLLER ASSEMBLY WIRELESS 6711A20096B 6711A20096B ...

Page 217: ...Service Manual 217 Exploded View Replacement Parts List Cassette Type 4 way TD chassis 266090 130411 354211 158591 330870 352118 2 266012 552111 159830 249951 268714 352118 1 263230 3 263230 2 263230 1 ...

Page 218: ...8 Multi type Air Conditioner Exploded View Replacement Parts List 130411 346810 152312 135313 135802 359012 130912 1 130911 1 352150 2 140570 W0CZZ 146811 137211 267110 2 267110 1 268712 130912 2 130911 2 ...

Page 219: ...IN 6323AQ3226A 6323A30002A R 263230 3 THERMISTOR ASSEMBLY ROOM 6323A10002B 6323A10002B R 266012 SWITCH ASSEMBLY FLOAT 6601A20001F 6601A20001F R 266090 H V ASSEMBLY 6609A20005D 6609A20005H R 268712 PWB PCB ASSEMBLY DISPLAY 6871A20096J R 268714 PWB PCB ASSEMBLY MAIN 6871A10158S 6871A10338X R 267110 1 REMOTE CONTROLLER ASSEMBLY 6711A20076N 6711A20076K R 267110 2 REMOTE CONTROLLER ASSEMBLY WIRELESS 67...

Page 220: ...is 152302 135313 137211 135310 267110 W4810 266090 159830 352150 147581 131410 W0CZZ 266000 330870 268715 268716 266000 733010 268712 146811 354212 35211B 346810 359011 330780 342800 135500 131410 249951 263230 2 263230 1 Exploded View Replacement Parts List ...

Page 221: ...A20001A 3078A20001A 3078A20001A R 330870 DRAIN PAN ASSEMBLY 3087A10018A 3087A10018A 3087A10018A 3087A10018A R 342800 BEARING 4280A20004A 4280A20004A 4280A20004A 4280A20004A R 346810 MOTOR ASSEMBLY INDOOR 4681A20131B 4681A20131B 4681A20131A 4681A20131A R 35211B TUBE ASSEMBLY TUBING 5211A21217B 5211A21217B 5211A21217B 5211A21217B R 352115 TUBE ASSEMBLY EVAPORATOR IN 5211A25012B 5211A25012B 5211A2501...

Page 222: ...e VB chassis 130911 263230 1 263230 2 35211A 342800 359010 152302 330870 354210 352115 249951 268711 W0CZZ 166000 346810 268712 237900 235450 146811 159911 159912 135303 352150 267110 137211 135314 135310 352111 Exploded View Replacement Parts List ...

Page 223: ...95A10107C 4995A10107C R 263230 1 THERMISTOR ASSEMBLY ROOM IN 6323A20004Y 6323A20004Y 6323A20004Y R 263230 2 THERMISTOR ASSEMBLY OUT 6323AQ3226Y 6323AQ3226Y 6323AQ3226Y R 267110 REMOTE CONTROLLER ASSEMBLY 6711A20096A 6711A20096A 6711A20096C R 268711 PWB PCB ASSEMBLY MAIN 3871A10159B 3871A10159A 3871A10159A R 268712 PWB PCB ASSEMBLY DISPLAY 6871AQ3263A 6871AQ3263A 6871AQ3263A R 330870 DRAIN PAN ASSE...

Page 224: ...Parts List 552203 1 552203 2 552203 1 552203 2 552113 2 561411 561410 263230 1 263230 2 552116 649950 668711 554160 1 552204 1 552204 2 W0CCZ 658740 430410 447910 437210 435301 554031 437212 435511 559010 546810 558511 552113 1 552112 A2UQ166FA0 Outdoor Unit ...

Page 225: ...1410 649950 668711 552203 1 552203 2 552203 1 552203 2 554160 1 552113 2 552204 1 552204 2 263230 1 263230 2 W0CCZ 554031 435512 559010 435301 546810 447910 437211 430411 658740 566000 561411 437212 435511 Exploded View Replacement Parts List A2UW146FA0 ...

Page 226: ...13 1 558511 552112 552116 561410 649950 668711 435511 552203 1 552203 2 552203 1 552203 2 554160 1 552113 2 552204 1 552204 2 263230 1 263230 2 W0CCZ 554031 435512 559010 435301 546810 447910 437211 430411 137213 2 137213 1 437212 658740 566000 561411 A2UW186FA0 A3UW186FA0 ...

Page 227: ...ER OUT 5211A23337A 5211A20927D 5211A23337A R 552116 TUBE ASSEMBLY REVERSING 5211A23335A 5211A23330A 5211A23335B R 552203 1 VALVE SERVICE 5220A20001K 5220A20001K 5220A20001K R 552203 2 VALVE SERVICE 2H02479J 2H02479J 2H02479J R 552204 1 HARNESS 6877A20050N 6877A20050N 6877A20050N R 552204 2 HARNESS 6877A20050P 6877A20050P 6877A20050P R 554031 CONDENSER ASSEMBLY BENT 5403A20221A 5403A20221A 5403A202...

Page 228: ... 552203 1 VALVE SERVICE Ø9 52 5220A20001K 5220A20001K 5220A20001K R 552203 2 VALVE SERVICE Ø6 35 2A02479R 2A00468J 2A00468J R 552204 1 COIL ASSEMBLY SOLENOID A 6141A20018K 6877A20050A 6877A20050A R 552204 2 COIL ASSEMBLY SOLENOID B 6141A20018L 6877A20050B 6877A20050B R 552204 3 COIL ASSEMBLY SOLENOID C 6877A20050K R 552116 TUBE ASSEMBLY REVERSING 5211A20493Q 5211A20493H 5211A20493R R 554031 CONDEN...

Page 229: ...113 1 552113 2 552115 435511 554160 2 554160 1 561411 561410 561411 1 561411 2 561411 3 554031 435512 559010 435301 546810 447910 437210 430411 137213 2 137213 1 435300 561411 4 658740 649950 552204 566000 558511 548490 263230 1 263230 2 263230 3 668711 A3UW246FA0 A4UW246FA0 ...

Page 230: ...6A R 552203 1 VALVE SERVICE Ø9 52 5220A20001K 5220A20001K R 552203 2 VALVE SERVICE Ø6 35 2A02479J 2A02479J R 552204 VALVE SOLENOID BODY 5220A90002C 5220A90002C R 554031 CONDENSER ASSEMBLY BENT 5403A20070B 5403A20070B R 554160 COMPRESSOR INVERTER 5416A90015A 5416A90015A R 554161 COMPRESSOR CONSTANT 5416A90016A 5416A90016A R 558511 DRIER ASSEMBLY 5851A30004A 5851A30004A R 559010 FAN ASSEMBLY PROPELL...

Page 231: ...59010 554161 554160 554031 1 554031 2 447910 430410 435512 435301 437210 137213 2 137213 1 135314 548490 552115 552111 552116 352113 435511 552113 649950 668711 W0CZZ 1 W0CZZ 2 566000 561411 1 561411 2 561411 3 561411 4 552203 1 552203 2 552204 558511 561410 658740 A4UW306FA0 ...

Page 232: ...OLD 5211A20895B R 552116 TUBE ASSEMBLY REVERSING 5211A20896A R 552201 VALVE CHECK 5220A30004A R 552203 1 VALVE SERVICE Ø9 52 5220A20001K R 552203 2 VALVE SERVICE Ø6 35 2H02479J R 552204 VALVE SOLENOID BODY 5220A90002C R 554031 CONDENSER ASSEMBLY BENT 5403A20168B R 554160 COMPRESSOR INVERTER 5416A90015A R 554161 COMPRESSOR CONSTANT 5416A90021A R 558511 DRIER ASSEMBLY 5851A30004A R 559010 FAN ASSEMB...

Page 233: ...37212 554031 2 435512 658740 W0CCZ 1 W0CCZ 2 669200 447910 566000 552116 430410 546810 1 546810 2 435301 35211A 552113 552113 1 558511 352112 552113 2 263230 3 263230 2 263230 1 546810 1 554031 1 559010 668713 437210 435511 237204 554161 554160 552203 2 552115 2 552115 1 552203 1 ...

Page 234: ...MANIFOLD OUTDOOR Ø9 52 5211A22018B 5211A22018B R 552116 TUBE ASSEMBLY REVERSING 5211A21188A 5211A21188A R 55211A TUBE ASSEMBLY SUCTION INDOOR 5211A21187A 5211A21187A R 55211G TUBE ASSEMBLY EXPANSION 5211A10434A 5211A10434A R 552201 VALVE CHECK 5220A30004A 5220A30004A R 552203 1 VALVE SERVICE Ø19 05 2A00499L 2A00499L R 552203 2 VALVE SERVICE Ø9 52 5220A20001E 5220A20001E R 552204 VALVE SOLENOID BOD...

Page 235: ...112 552112 55211G 137213 352112 552113 552113 430410 552112 558511 137213 661400 649950 561410 2 352114 346811 268711 554030 3 554030 1 549610 559010 349490 435311 437211 435310 W0CCZ 2 W0CCZ 1 554030 2 546810 554030 4 548490 263230 1 554160 2 263230 2 263230 3 561410 1 552116 554160 1 554160 2 552203 1 552203 2 552112 263230 4 ...

Page 236: ...MOUNT ASSEMBLY MOTOR OUTDOOR 4961A20028A 4961A20028A R 552112 1 TUBE ASSEMBLY CONDENSER IN 5211A10480A 5211A10480A R 552112 2 TUBE ASSEMBLY CONDENSER IN 5211A10480B 5211A10480B R 552112 3 TUBE ASSEMBLY CONDENSER IN 5211A10480C 5211A10480C R 552112 4 TUBE ASSEMBLY CONDENSER IN 5211A10480D 5211A10480D R 552113 1 TUBE ASSEMBLY CONDENSER OUT 5211A10481A 5211A10481A R 552113 2 TUBE ASSEMBLY CONDENSER O...

Page 237: ... R 552112 1 TUBE ASSEMBLY CONDENSER IN 5211A10480A 5211A10480A R 552112 2 TUBE ASSEMBLY CONDENSER IN 5211A10480B 5211A10480B R 552112 3 TUBE ASSEMBLY CONDENSER IN 5211A10480C 5211A10480C R 552112 4 TUBE ASSEMBLY CONDENSER IN 5211A10480D 5211A10480D R 552113 1 TUBE ASSEMBLY CONDENSER OUT 5211A10481A 5211A10481A R 552113 2 TUBE ASSEMBLY CONDENSER OUT 5211A10481B 5211A10481B R 552116 TUBE ASSEMBLY RE...

Page 238: ...P No 3828A22009C October 2006 Printed in Korea ...

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