Multi Type Air Conditioner SERVICE MANUAL MODEL Room Type Duct Type 1 Way CST • Indoor Unit: AMNH076LQL0 AMNH096BTG0 AMNH096TCC0 AMNH096LQL0 AMNH126BTG0 AMNC096TCC0 AMNH096LRL0 AMNH186BTG0 AMNH126TCC0 AMNH126LRL0 AMNH096BPA0 AMNC126TCC0 AMNH186LTL0 AMNH126BPA0 AMNH246LTL0 AMNH186BHA0 4 Way CST...
Multi type Air Conditioner Service Manual TABLE OF CONTENTS Model Number Nomenclature ........................3 Symbols Used in this Manual ........................5 Safety Precautions............................6 Dimensions..............................12 Indoor Unit.............................12 Outdoor Unit ............................20 Product Specifications ..........................22 Installation ..............................28 Select the best location of indoor unit ....................28 How to fix ...............................31 Piping and Drainage of Indoor Unit ......................38 Connection of indoor unit piping......................39...
Model Number Nomenclature Model Number Nomenclature Indoor Unit Serial Number 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 Chassis Name Indoor Unit Type L : Wall Mounted , A : ART COOL...
Page 4
Model Number Nomenclature Panel (Cassette, Built in Duct) Category CHASSIS PANEL NAME PANEL P/NO. SERIAL NO. Remark PT-CFA 3721A10072B 8435002992862 COOLING PT-CFC 3721A10072G 8435002992879 COOLING + PLASMA PT-HFA 3821A10072A 8435002992886 HEATING PT-HFC 3721A10072E 8435002992893 HEATING + PLASMA PT-CCA 3721A10023Z 8435002994095 COOLING PT-CCC 3721A10023W...
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.
Page 7
Safety Precautions Do not modify or extend the Do not install, remove, or re- Be cautious when unpacking power cable. install the unit by yourself and installing the product. (customer). • There is risk of fire or electric • There is risk of fire, electric shock, •...
Page 8
Safety Precautions Do not plug or unplug the Do not touch(operate) the Do not place a heater or other power supply plug during product with wet hands. appliances near the power operation. cable. • There is risk of fire or electric •...
Page 9
Safety Precautions Do not open the inlet grill of the product When the product is soaked Be cautious that water could during operation. (Do not touch the elec- (flooded or submerged), contact not enter the product. trostatic filter, if the unit is so equipped.) an Authorized Service Center.
Page 10
Safety Precautions Do not install the product Use two or more people to lift Do not install the product where the noise or hot air and transport the product. where it will be exposed to from the outdoor unit could sea wind (salt spray) directly.
Page 11
Safety Precautions Do not step on or put anyting Always insert the filter secure- Do not insert hands or other on the product. (outdoor ly. Clean the filter every two objects through the air inlet or units) weeks or more often if neces- outlet while the product is sary.
Dimensions Dimensions Indoor Unit 1. Split Type Indoor 2. Art Cool Type Indoor Unit Pipe Hole Hanger Hole Tubing hole cover Installation plate Fix Hole Left rear piping Right rear piping Left rear piping Right rear piping Left rear piping Right rear piping "D"...
Page 13
Dimensions 3. Art Cool Deluxe Type Installation plate MODEL 9K, 12K Unit 1030 Service Manual 13...
Dimensions 4. Duct Type BH/BG BT/BT1 MODEL 9K/12K 18K/24K 30K/36K 9K/12K W(mm) 1060 1180 H(mm) D(mm) 14 Multi type Air Conditioner...
Page 15
Dimensions 5. CVT Type VB(18K/24K) 63mm 38mm 250mm 175mm (Installation Plate) (Rear Side) VE(9K/12K) Installation plate MODEL 9K/12K 18K/24K Unit 1200 Service Manual 15...
Page 16
Dimensions 6. CST Type - TC (9K/12K) 6. CST Type - TC (9K/12K) 1,000 (Ceiling opening) 931.6 893.4 (Hanging bolt) 931.6 893.4 16.7 42.7 91.6 97.7 116.3 Ø80 141.8 Ø55 1050 694.5 (unit : mm) Number Name Descripition Liquid pipe connection ø6.35 flare Gas pipe connection ø9.52 flare...
Page 17
Dimensions 7. CST Type - TE (12K/18K) 600 (Ceiling opening) 521(Hanging bolt) 39.5 39.5 570 Unit size Unit:mm CLOSE OPEN OPEN CLOSE (unit : mm) Number Name Descripition Liquid pipe connection ø6.35 flare Gas pipe connection 12k: ø9.52, 18k: ø12.7 flare Drain pipe connection Power supply connection Air discharge grill...
Page 18
Dimensions 8. CST Type - TF (24K/30K) 790 (Ceiling opening) 572(Hanging bolt) 744 Unit size Unit:mm (unit : mm) Number Name Descripition Liquid pipe connection ø6.35 flare Gas pipe connection ø12.7 flare-24K, ø15.88 flare-30K Drain pipe connection Power supply connection Air discharge grill Air suction grill 18 Multi type Air Conditioner...
Page 19
Dimensions 9. CST Type - TD(36K) 875 (Ceiling opening) 785 (Hanging bolt) 840 Unit size Unit:mm Fresh Air Inlet (unit : mm) Number Name Descripition Liquid pipe connection ø6.35 flare Gas pipe connection ø15.88 flare Drain pipe connection Power supply connection Air discharge grill Air suction grill Service Manual 19...
Dimensions Outdoor Unit 30K/40K 14K/16K/18K/24K MODEL 14K,18K 1060 1165 1040 1135 20 Multi type Air Conditioner...
Page 21
Dimensions A7UW486FA0/A8UW566F A8UQ566FA0 500(bolt hole) Air outlet inlet inlet Service Panel Knockout hole (For the control wiring, the power supply, refrigerant connecting pipe) Knockout hole (For the control wiring, the power supply, (Unit : mm) refrigerant connecting pipe) Service Manual 21...
Installation Installation Read completely, then follow step by step. Select the best location of indoor unit 1. Split Type Indoor Unit Front There should not be any heat source or steam near the • unit. Left • There should not be any obstacles to prevent the air circulation.
Page 29
Installation 3. Art Cool Deluxe Type Indoor unit • Do not have any heat or steam near the unit. More than 30cm More than 20cm • Select a place where there are no obstacles in front of the unit. • Make sure that condensation drainage can be conveniently routed away.
Page 30
Installation 6. CVT Type Indoor Unit More than 20cm • There should not be any heat source or steam near the unit. More than 20cm • There should not be any obstacles to prevent the air circulation. • A place where air circulation in the room will be good. More than eye-level •...
Installation How to fix 1. Room Type Indoor Unit Installation Installation Plate The mounting wall should be strong and solid enough to protect it from the vibration. 1) Mount the installation plate on the wall with four Type "A" screws. (If mounting the unit on the concrete wall, consid- marking-off line Type "A"...
Page 32
Installation 2. Art Cool Type Indoor Unit 2) Cover pipe and cover side remove • Remove two screws(for fixing cover pipe) The wall you select should be strong and solid enough • Pull up the cover side of desired connecting direc- to prevent vibration tion, then cover side is separated.
Installation Sticking the installation guide map and fixing Indoor unit 1. Put an Installation Guide Map on the desired 7. Drill the piercing part for connecting pipe as surface. diameter 50mm. (In case of piercing rear surface) INSTALLATION GUIDE MAP Refer to No.
Page 34
Installation 3. Art Cool Deluxe Type Indoor Unit 3). Drill a hole in the wall • Drill the piping hole with a ø70mm hole core drill. Drill The wall you select should be strong and solid enough the piping hole at either the right or the left with the to prevent vibration hole slightly slanted to the outdoor side.
Page 35
Installation 4. Duct Type Indoor Unit - BH/BG chassis Install the unit above the ceiling correctly. CASE 1 POSITION OF SUSPENSION BOLT • Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. • Apply a filter Accessory at air return hole. (Unit:mm) Dimension (G) H...
Page 36
Installation - BT chassis Install the unit above the ceiling correctly. CASE 1 POSITION OF SUSPENSION BOLT • Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. • Apply a filter Accessory at air return hole. (Unit:mm) Dimension Capacity 9/12K...
Page 37
Installation - BP chassis Install the unit above the ceiling correctly. CASE 1 POSITION OF SUSPENSION BOLT • Apply a joint-canvas between the unit and duct to absorb unnecessary vibration. • Apply a filter Accessory at air return hole. (Unit:mm) Dimension Capacity 9k/12k BTU/h 633 580 695 660 750 45 369 797 20 232 372...
Installation Piping and Drainage of Indoor Unit 1. Preparation of pipings Pipe cutter 1) Cut the pipes and the cable. • Use the accessory piping kit or the pipes pur- chased locally. Slanted Rough • Measure the distance between the indoor and the outdoor unit.
Installation Connection of indoor unit piping 1. Split Type Indoor Unit 3. Tape the tubing, drain hose and the connecting cable. Be sure that the drain hose is located at the • Preparing the indoor unit's piping and drain hose lowest side of the bundle.
Page 40
Installation • When extending the drain hose at the indoor unit, For right rear piping install the drain pipe. 1. Route the indoor tubing and the drain hose to the required piping hole position. Drain pipe Indoor unit drain hose Vinyl tape(narrow) Adhesive 6.
Page 41
Installation 6) Connecting the pipings to the indoor unit and the 8) Reroute the pipings and the drain hose across the drain hose to drain pipe. back of the chassis. • Align the center of the pipings and sufficiently tighten the flare nut by hand. Indoor unit tubing Flare nut Pipings...
Page 42
Installation 2. Art Cool Type Indoor Unit • When extending the drain hose at the indoor unit, install the drain pipe. • Preparing the indoor unit's piping and drain hose for installation through the wall. 1) Route the indoor tubing and the drain hose in the direction of rear left or right.
Page 43
Installation Panel Assembly 1. First, Check 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 Panel Front Connector 3.
Page 44
Installation 3. Art Cool Deluxe Type Indoor Unit NOTE: If the drain hose is routed inside the room, insulate the hose with an insulation material* so that Connection of piping Indoor dripping from "sweating"(condensation) will not damage • Preparing the indoor unit's piping and drain hose for furniture or floors.
Installation 5. Wrap the insulation material around the connecting 4. Tape the drain hose and the connecting cable. portion. • Connecting cable • 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. Plastic bands Insulation material 5.
Page 46
Installation 7. Wrap the insulation material around the con- 9. Set the pipings and the drain hose to the back of necting portion. the chassis with the tubing holder. • Overlap the connection pipe heat insulation and the • Hook the edge of tubing holder to tap on chassis and indoor unit pipe heat insulation material.
Page 47
Installation CAUTION • Bad case Following bending type from right to left could cause problem Installation Information (For left piping) of pipe damage. • Good case For left piping. Follow the instruction below. • Press on the upper side of clamp. ( ) •...
Page 48
Installation 4. Duct Type Indoor Unit 1) Indoor Unit Installation • Select and mark the position for fixing bolts. • Drill the hole for set anchor on the face of ceiling. Old building New building • Insert the set anchor and washer onto the suspen- sion bolts for locking the suspension bolts on the ceil- ing.
Page 49
Installation 5. CVT Type Indoor Unit - VB chassis Before Installing, prepare Installation Plates Side Plate • 'Installation Plates' are attached at the bottom of indoor unit. Detach them by removing each 3 screws at both sides. Install Plate • Detach 'Side Plate (R,L)' by removing each 2 screws on both sides.
Page 50
Installation • Insert the nuts and washer onto the suspension bolts Anchor nut for locking the suspension bolts on the ceiling. Ceiling • Mount the suspension bolts to the anchor-nuts firmly. • Secure the Installation plates onto the Suspension Washer bolts (adjust level roughly.) using nuts, washers and Suspension bolts...
Installation - VE chassis The wall you select should be strong and solid enough to prevent vibration Installation Plate 1. Mount the installation plate on the wall with type "A" screws. If mounting the unit on a con- crete wall, use anchor bolts. •...
Installation • Secure the Installation plates onto the Suspension bolts (adjust level roughly.) using nuts, washers and Anchor nut spring washers. Ceiling • Engage 2 hooks on the both left and right side of the Washer unit to the lower slot of Installation Plates. Suspension bolts •...
Installation CAUTION: Installation Information For Declination CAUTION 1. Install declination of the indoor unit is very important for the drain of the convertible type air conditioner. 2. Minimum thickness of the 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.
Page 54
Installation • Secure the unit to the Installation Plates with four M8 bolts and washers. • Before working, refer to "Connecting pipe and cable to Indoor Unit". • Hook up the Inlet Grille Hook to the cabinet. Inlet hanger • Hang the Inlet Hanger to the screw. Hook Cabinet Bottom •...
Page 55
Installation 2) Installation on the Wall • 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 of drain hose. • Drill the hole for anchor nut on the wall. •...
Page 56
Installation Install the Indoor unit onto Installation Plate. • Insert 2 hooks on the both left and right side of the unit Inner slot to the inner slot (wall side) of the Installation Plate. • Secure the unit to the Installation Plate with four M8 bolts and washers.
Page 57
Installation 3) Installation on the floor From the left wall Installation of Mount Bracket. more than 760mm • Select and mark the position for Mount Brackets and the piping hole. • Drill the hole for the anchor nut on the wall. From the right wall •...
Page 58
Installation 6. Ceiling Cassette Type Indoor Unit - TC chassis 1) Ceiling opening dimensions and hanging bolt location • The dimensions of the paper model for installing are 1,000 (Ceiling opening) the same as those of the ceiling opening dimen- 931.6 sions.
Installation 2) Indoor Unit Installation Ceiling Keep the length of the bolt Hanging bolt from the bracket to 40mm (W3/8 or M10) Flat washer for M10 (W3/8 or M10) (accessory) Air Conditioner body Ceiling board Ceiling board Spring washer (M10) Flat washer for M10 (accessory) Paper model...
Page 60
Installation 7. Ceiling Cassette Type Indoor Unit - TE/TF/TD chassis 1) Ceiling opening dimensions and hanging bolt location 600 (Ceiling opening) • The dimensions of cardboard for installing are the same as those of the ceiling opening dimensions. 521(Hanging bolt) 39.5 39.5 Ceiling...
Page 61
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; •...
Installation Remote Controller Installation • Although the room temperature sensor is in the 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. •...
Page 63
Installation REMOTE CONTROL PREPARATION(OPTIONAL) HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES HOW TO INSERT BATTERIES Remove the battery cover from the remote con- troller. • Slide the cover according to the arrow direction. • Do not use rechargeable batteries, such batteries differ from standard dry Insert the two batteries.
Installation Connecting Pipings and the cable to Outdoor unit 1. Connecting the pipings to the Outdoor 2) Align the center of the pipings and sufficiently tight- en the flare nut by hand unit 1) When piping installation work you must be used the connector.
Page 65
Installation CAUTION: If a power plug is not to be used, provide a circuit breaker between power source and the unit as shown below. Main power source Circuit Breaker Conditioner Use a 30A circuit breaker or time delay fuse. CAUTION The power cord connected to the outdoor unit The connecting cable connected to the indoor should be complied with the following specifica-...
Installation Checking the Drainage and Pipe forming 1. Split Type Indoor Unit 1) Remove the Grille from the cabinet • Set the up-and-down air direction louver to open position(horizontally) by finger pressure. • Remove the securing screws. Screw • To remove the Grille, pull lower the left and Pull the right and right side of the grille toward you (slightly tilted) the left side.
Page 68
Installation 3. Art Cool Deluxe Type Indoor Unit 3) Drain piping • The drain hose should point downward for easy drain 1) To remove the front panel from the indoor unit. flow. • Set the air direction louvers up-and-down to the posi- tion(horizontally) by hand.
Installation 4. Convertible Type Indoor Unit To remove the front panel from the indoor unit. 1. Set the air direction louvers up-and-down to the posi- tion(horizontally) by hand. 2. Remove the securing screws that retain the front panel. Pull the lower left and right sides of the grille Pull the right and toward you and lift it off.
Page 70
Installation 5. Duct Type Indoor Unit 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. Front of view •...
Page 71
Installation 6. CST Type Indoor Unit Upward • Drain piping must have down-slope (1/50 to 1/100): Pipe clamp routing be sure not to provide up-and-down slope to prevent not allowed reversal flow. Indoor unit • During drain piping connection, be careful not to exert extra force on the drain port on the indoor unit.
Installation Maximum Length of Pipe and Extra Charge of Refrigerant Charge 1. TPS Inverter Multi -Multi Piping Type 1.1 The maximun allowable level and piping length [Outdoor Unit] It does not matter which unit is higher. [Indoor Unit] 7.5m Max piping length each indoor unit Model Standard Length Max total piping length...
Page 73
Installation 2. TPS Inverter Multi - Distributor Type 2.1 The maximum allowable level and piping length Outdoor Unit Installation of the outdoor unit in an upper position Place the BD unit and indoor units within a level distance of 10m BD Unit from each other.
Page 74
Installation • A7UW486FA0 Outdoor Unit Installation of the outdoor unit in an upper position Place the BD unit and indoor units within a level distance of 10m BD Unit from each other. BD Unit Main piping Branch piping • Total main piping length : 50m( •...
Page 75
Installation • A8UW486FA0 Outdoor Unit Installation of the outdoor unit in an upper position Place the BD unit and indoor units within a level distance of 10m BD Unit from each other. BD Unit Main piping Branch piping • Total main piping length : 50m( •...
Installation 2.2 Refrigerant charge The calculation of the additional charge should be taken in account for the length of pipe. A6UW406FA0 charge = 4100g Additional charge (g) x 50g/m Total Main pipe length - rated length 7,9,12 k Branch pipe length - rated length x 20g/m x 30g/m 18,24 k Branch pipe length - rated length...
Installation 2.3 Piping connection size Liquid Ø 9.52 Adjust to indoor unit piping size Ø19.05 BD Unit A6UW406FA0 Y-Branch 2.4 Necessity of a trap Since there is fear of the oil held inside the riser piping flowing back into the compressor when stopped and causing liquid compression phenomenon, or cases of deterioration of oil return, it will be necessary to pro- vide a trap at an appropriate place in the riser gas pip-...
Page 78
Installation 2.5 Y-Branch(Standard accessory) [unit:mm] Gas Pipe Liquid Pipe Ø19.05 Ø9.52 Ø19.05 Ø9.52 Ø9.52 Ø19.05 Y branch To Outdoor Unit To BD Unit • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) Horizontal Facing upwards plane Within +/- 10°...
Installation Test Running SPLIT, ART cool, ART cool deluxe Type 1. Check that all tubing and wiring have been properly con- Bolt nected. 2. Check that the gas and liquid side service valves are fully open. 1) Prepare remote controller Remove the battery cover by pulling it according to the arrow direction.
Page 80
Installation CVT Type 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- troller.
Installation Ceiling Cassette Type 1) PRECAUTIONS IN TEST RUN • The initial power supply must provide at least 90% of the rated voltage. Otherwise, the air conditioner should not be operated. For test run, carry out the cooling operation first even during winter season. If heating operation is Caution carried out first, it leads to the trouble of compressor.
Installation 5. Branch Distributor PRECAUTIONS FOR SELECTING THE LOCATION The BD unit is for indoor use. Install in a location such as above a ceiling or behind a wall in accordance with the following conditions: • That the unit is fully supported, and is in a location with little or no vibration. •...
Installation Piping length and elevation Length 6 room 7 room 8 room Total main piping length Total branch piping length L1+L2+L3+L4+L5+L6+(L7)+(L8) Max. each branch piping length L1, L2, L3, L4, L5, L6, L7,L8 Total system piping length (Total main) + (Tatal branch) Maxium Level in - out Maxium Level in - in Installation...
Installation Installation of The Main Unit NOTICE • This unit has two different installation types: (1) Ceiling-suspended type and (2) wall-mounted type. • Choose the proper installation pattern according to the location of installation. • The installation location for printed wiring board can be changed.
Installation Connection of Piping • When connecting indoor units, make sure to connect refrigerant pipes and connection wires to the appropriate con- nection ports maked with matching alphabets. (A, B, C, D) NOTICE • Be sure to mark all the local refrigerant piping(liquid pipes, gas pipes, etc.) for each indoor unit designating clearly which room it belongs in.(A, B, C, D) NOTICE...
Installation Connection of Wiring • Connect refrigerant pipes and connection wires to the appropriate ports maked with matching alphabets (A, B and C) on this unit. • Follow the instructions on the wiring nameplate to connect the connection 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.) •...
Operation Operation Function of control 1. MAIN UNIT FUNCTION • DISPLAY 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 •...
Page 88
Operation operates with the low or setting speed. When the indoor pipe temp is between 20°C and 27°C, it operates with Super-Low(while in sleep mode, with the medium airflow speed). • While compressor off, the indoor fan is off when the indoor pipe temp is below 33°C, when above 35°C , it operates with the low airflow speed.
Page 89
Operation 2) Fuzzy Operation for Dehumidification • According to the setting temperature selected by Fuzzy rule, when the intake air temp is 0.5°C or more below the setting temp, the compressor is turned off. When 0.5°C or more above the setting temp, the compressor is turned on.
Operation Off-Timer <=> On-Timer Operation • When the set time is reached after the on/off time is input by the remote control, the on/off-timer operation is carried out according to the set time. Sleep Timer Operation • When the sleep time is reached after <1,2,3,4,5,6,7,0(cancel) hr> is input by the remote control while in appli- ance operation, the operation of the appliance stops.
Operation Forced Operation • To operate the appliance by force in case that the remote control is lost, the forced operation selection switch is on the main unit of the appliance to operate the appliance in the standard conditions. • When the power is supplied while the slide switch is on the forced operation position, or when the slide switch position is switched to the Auto Restarting (or test operation) position or switched from the remote control position to the forced operation position while the power is on, the forced operation is carried out.
Operation Function of Indoor Unit Split Type 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 •...
Page 93
Operation Art Cool Type 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 •...
Page 94
Operation Art Cool Deluxe Type Remote Controller Operation ON/OFF Operation Mode Selection Cooling Operation Mode.( Auto Operation Mode.( (Cooling (Heating Healthy Dehumidification Operation Mode.( Heating Operation Mode.( model only) model only) Fan Speed Selection (Low) (Med) (High) Room, Temperature Checking : (High:39°C Low:11°C) Temperature Setting...
Page 95
Operation Duct Type Remote Controller Operation ON/OFF Operation Mode Selection Cooling Operation Mode ( Soft Dry Operation Mode ( Heating Operation Mode ( Auto Operation Mode ( (Cooling (Heating model only) model only) Fan Speed Selection (Low) (Med) (High) Room Temperature Display : High:39°C ↔...
Page 96
Operation CST Type Remote Controller Operation ON/OFF Operation Mode Selection Cooling Operation Mode ( Soft Dry Operation Mode ( Heating Operation Mode ( Auto Operation Mode ( (Cooling (Heating model only) model only) Fan Speed Selection AUTO (Low) (Med) (High) Room Temperature Display : High:39°C ↔...
Page 97
Operation Convertible Type Remote Control Operation ON/OFF Operation Mode Selection Cooling Operation Mode.( Auto Operation Mode.( (Cooling (Heating Healthy Dehumidification Operation Mode.( Heating Operation Mode.( model only) model only) Fan Speed Selection (Low) (Med) (High) (CHAOS) Room, Temperature Checking : (High:39°C Low:11°C) Temperature Setting TEMPERATURE...
Operation Function of Outdoor Unit Outdoor Unit Two Comp algorithm • Inverter Comp is first priority and then Constant Comp is turning on responding to load condtion. Operating Frequency • Inverter Frequency varies considering condition such as room temp,outdoor temp, operating room number,Temp gap between room temp and set temp and so on.
Operation Remote Control Operation The Remote Controller transmits the signals to the system. START/STOP BUTTON Signal transmitter Operation starts when this button is pressed and stops when the button is pressed again. OPERATION MODE SELECTION BUTTON Used to select the operation mode. ROOM TEMPERATURE SETTING BUTTONS Used to select the room temperature.
Page 100
Operation Duct Type Remote Controller AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp AUTO Heater Preheat Defrost Humidify Filter Out door Time 1 2 3 4 ZONE Timer Operation unit Program set Set no. Time Signal receiver Timer Cancel Program...
Page 101
Operation Operation CST Type Remote Controller 1Way AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION Room Temp Heat Pump Model AUTO Heater Preheat Defrost Humidify Filter Out door 1 2 3 4 Time ZONE Timer Operation unit Program set Set no.
Page 102
Operation 1) Two Thermistor System (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. • Position 1: The room temperature is controlled by the thermistor of the main body. •...
Operation 2) Group Control(Optional Wiring) • You can use a group control operation after connecting the brown and yellow wire of each air-conditioner. • Remove the resistor "OP 7" in remote controller. • It operates maximum 16 Units by only one Wired Remote Controller, and each Unit starts sequentially to prevent overcurrent.
Page 104
Operation 3) E.S.P.(External Static Pressure) Setting (1) Open the rear cover of the wired remote-controller to set the mode. (2) Select one of three selectable modes as follows. Without Zone System 1. Position V-H, F-H: • This position sets the maximum E.S.P as a default set. 2.
Page 105
Operation 4) How to Set E.S.P? Procedure of RPM change: Ex) External Static pressure is 4mmAq for Model 36K. • To protect the unit, compressor is designed to be off during E.S.P. setting. Push the"On/Off"button. The unit will start. AUTO SWING OPERATION SET TEMP FAN SPEED SUB FUNCTION...
Control Devices and Function Control Devices and Function Simple Central Control Features • 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 •...
Control Devices and Function Electrical wiring PICTORIAL VIEW OF THE CONNECTION Outdoor unit Outdoor unit PI485 : PNF-P14A0M MAIN PCB PI485 MAIN PCB Control Box CN_CENTRAL MAIN PCB CN_CENTRAL PI485 CENTRAL CONTROL CN OUT UNIT • Special purchase: Central control, PI485(PNF-P14A0M) ONE SIMPLE CENTRAL CONTROL CONNECTION INDOOR UNIT INDOOR UNIT 1...
Page 109
* LGAP : LG Air conditioners Protocol • Function of LG Network - It is possible to connect the network of LG air conditioners and to connect various contents of the network system, which is simple, deluxe and PC central control.
Page 110
Control Devices and Function Indoor Unit Address setting Method 1. Press 13(program) and 16(set and clear) key more Using Wired Remocon than 3 second then "Address Setting Mode" starts. 2. Set the address of indoor unit by using "Temperature setting" key. Range of address : 00 ~ FF AUTO SWING OPERATION...
Control Devices and Function Test run method 1. Set the wiring of system and indoor unit. 2. Apply power to the setting. 3. Do auto addressing to the outdoor unit. 4. After addressing, initialize the central controller(Manual initialize: Total on + total off + 16 key). •...
Page 112
Control Devices and Function INSTALLATION ORDER Remove upper & lower case. Fixate screw in the holes of the For Dip switch, and Rotary case bottom. switch setting, refer to the page “How to Install”. For wiring connection, refer page Adjust the upper case in accor- Check the operation by supply- “Installation Procedure”...
Control Devices and Function . ROTARY SWITCH SETTING(INSTALLATION FOR 2 OR MORE SIMPLE CENTRAL CONTROL) The setting of Group Number in the Central Control is done by the rotary switch as shown in the figure below. It is possible to set 0~15 Group(Total 16 Groups). All the numbers on the rotary switch represent the different Group Numbers.
Control Devices and Function Deluxe Central Control 2.1.1 Summary Deluxe Central control is a product available for individual and integrated monitoring and control of maximum 256 of TPS Inverter Multi air conditioner systems. Specially, operation status of the individual air conditioner can be particularly checked.
Page 115
Control Devices and Function Major Characteristics Figure 2) Deluxe Central control 1. Individual/Integrated Operation/Monitoring You can identify operation status of the air conditioner, operation mode, wind quantity, wind direction, lock- ing, temperature setting and error, etc by selecting the installed air conditioner through individual selection, group selection or all selection.
Page 116
Control Devices and Function 6. Convenient GUI / Touch Screen Not requires special education for using the Deluxe Central control, conveniently used only by pressing the buttons on the screen, and its function can be understood with intuitive pictogram. Especially schedule setting is done by simply by dragging, different from the existing system requiring to press the button by more than average 30 times to enter a schedule.
Page 117
Control Devices and Function Figure 3) Deluxe Central control Table 1) Comparison Between Central control Characteristics Internet Central control PC Central control Deluxe Central control Dedicate PC Non-required Required Non-required Configuration User S/W User S/W, Engine S/W Main Body of Web Pad Deluxe Central control Position of program Download to i-GW...
Control Devices and Function Major Function of Deluxe Central Control [ System Control ] To check general monitor function of the air con central control system such as selection of group and air conditioner, air conditioner control monitor function etc. PQCSW501A0, PQCSW502A0 [ System Monitor ] To check the ctual time status of all air conditioners.
Control Devices and Function System Configuration Scenario 1 : In case of not using Internet access function Product B part A part Control System Interface Delux Central PI485 Control PI485 Cross UTP Cable (Cross LAN Cable) RS-485 Cable PI485 PI485 * CNU: Central control Network interface Unit PI485: Product Interface unit for IEEE485 transmission.
Disassembly of the parts Disassembly of the parts (Indoor unit) Indoor unit 1. Split Type Indoor unit CAUTION: Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. To remove the Grille from the Chassis. •...
Page 121
Disassembly of the parts 2) To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis care- fully. 3) To remove the Discharge Grille. • Pull the discharge grille out from the chassis carefully.
Page 122
Disassembly of the parts 2. Art Cool Type Indoor Unit CAUTION: Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. 1. To remove the Grille from the Chassis. - Pull the grille bottom, the remove 2 securing screws. - Lift the both lower parts of panel front.
Page 123
Disassembly of the parts 3) To remove the Evaporator. - Remove 4 screws securing the evaporator. - Pull the evaporator out from the chassis carefully. 4) Before removing the Turbo Fan. Air Guide - Remove the securing screws from the chassis. Top Cover - Pull the pipe cover, top cover and the air guide.
Page 124
Disassembly of the parts 3. Art Cool Deluxe Type Indoor Unit CAUTION: Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. To remove the Grille from the Chassis. • Hold up Inlet Grille Horizentally. •...
Page 125
Disassembly of the parts 2) To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis careful- 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.
Page 126
Disassembly of the parts • Unhook the tab on the right inside of the chassis at the same time, slightly pull the evaporator toward you until the tab is clear of the slot. 5) To remove the Motor Cover • Remove 2 securing screw. •...
Page 127
Disassembly of the parts 3. CVT Type - VB chassis Warning : Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. 1. Remove the air filter. • Pull the inlet grille slightly toward you. •...
Page 128
Disassembly of the parts VE chassis Warning : Disconnect the unit from power supply before making any checks. Be sure the power switch is set to “OFF”. To remove the Grille from the Chassis. • Set the up-and-down air discharge louver to open position (horizontally) by finger pressure.
Page 129
Disassembly of the parts 2. To remove the Control Box. • Remove securing screws. • Pull the control box out from the chassis carefully. 3. To remove the Discharge Grille. • Unhook the discharge grille and pull the discharge grille out from the chassis carefully. 4.
Page 130
Disassembly of the parts • Unhook the tab on the right inside of the chassis at the same time, slightly pull the evaporator toward you until the tab is clear of the slot. 5. To remove the Motor Cover • Remove 2 securing screw. •...
Page 131
Disassembly of the parts 4. Remove air guide upper, crossflow fan and motor. • Remove the screws of both sides and center securing the upper air-guide. • Remove 2 screws fastening the bracket of door switch. Door Switch • Remove a bearing assembly by removing a screw and the bearing cover.
Page 132
Disassembly of the parts 6. Remove the front panel. Diffuser frame • Remove the screws of both sides fixing the front Diffuser panel. frame • Push the upper side of front panel strongly to pull Hook out the front panel from the inner hook of diffuser Front frame.
Page 133
Disassembly of the parts 9. Remove the vane-upper, vane-lower and step motor. Step Motor • Remove 2 screws securing the step motor Vane Supporter assembly and pull it out from the vanes carefully. • Unhook the vanes from the vane supporter and remove the upper vane and lower vane by pulling the center of vanes with care.
Schematic Diagram Schematic Diagram Electronic Control Device 1. Indoor Unit 1) Split Type C02F,0.01/50V C01F,0.01/50V R01T,10K R02T,10K R03T,10K R04T,10K R05T,10K 134 Multi type Air Conditioner...
Page 135
Schematic Diagram 2) Art Cool Type Service Manual 135...
Page 136
Schematic Diagram 3) Art Cool Deluxe Type 136 Multi type Air Conditioner...
Page 137
Schematic Diagram 4) Duct Type Service Manual 137...
Page 138
Schematic Diagram 5) Convertible Type 138 Multi type Air Conditioner...
Page 142
Schematic Diagram 3. Central control unit Schematic diagram R 0 8 S R 0 7 S R 0 6 S R 0 5 S TXD1 OSC01B Xtal1 RXD1 14.7456 R01B Xtal2 RXD2 TXD2 142 Multi type Air Conditioner...
Schematic Diagram Wiring Diagram 1. Room Type Indoor Unit 2. Art Cool Type Indoor Unit AC PCB ASM DC PCB ASM AC PWB ASM DC PWB ASM THERMISTOR(OUT-PIPE) THERMISTOR(OUT-PIPE) THERMISTOR(IN-PIPE) MOTOR THERMISTOR(ROOM) THERMISTOR(IN-PIPE) THERMISTOR(ROOM) STEP MOTOR STEP MOTOR STEP MOTOR FUSE 250V 3.15A FUSE...
Page 144
Schematic Diagram 5. Duct Type Indoor Unit - BH/BP chassis 6. CVT Type Indoor Unit - VE chassis WIRING DIAGRAM WIRING DIAGRAM STEP IN-PIPE. OUT-PIPE. ROOM. CENTRAL CONTROL REMOTE A/CL MOTOR THERMISTOR THERMISTOR THERMISTOR TELE CONTROL CONTROL UNIT HEATER DRY CONTACT S/W2 CN-UD1 CN-CC...
Page 154
Schematic Diagram 6) Convertible type • VE chassis AC part TOP VIEW BOTTOM VIEW DC part TOP VIEW BOTTOM VIEW 154 Multi type Air Conditioner...
Page 155
Schematic Diagram • VB chassis Service Manual 155...
Page 156
Schematic Diagram 2. Display ASSEMBLY 1) Split Type 2) Convertible Type VE chassis TOP VIEW PWB ASM:6871A20390 PCB:6870A90065K BOTTOM VIEW VB chassis 3) Art Cool Type TOP VIEW BOTTOM VIEW 156 Multi type Air Conditioner...
Page 157
Schematic Diagram 4) Art Cool Deluxe Type TOP VIEW BOTTOM VIEW Service Manual 157...
Page 158
Schematic Diagram 3. Outdoor Unit 1) Component side 158 Multi type Air Conditioner...
Page 159
Schematic Diagram 2) Solder side Service Manual 159...
Page 160
Schematic Diagram 3) Central control PCB 1) Top View 2) Bottom View 160 Multi type Air Conditioner...
Page 161
Schematic Diagram 4. SUB P.W.B ASSEMBLY 1) Art Cool Type TOP VIEW BOTTOM VIEW Service Manual 161...
Page 166
Troubleshooting Guide 5. BD Unit 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) D Liquid(Ø6.35) C Liquid(Ø6.35) B Liquid(Ø6.35) A Liquid(Ø6.35) [Indoor Unit] 166 Multi type Air Conditioner...
Page 167
Troubleshooting Guide 6. A7UW486FA0, A8UW566FA0 Service Manual 167...
Troubleshooting Guide 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. •...
Troubleshooting Guide Cycle Troubleshooting Guide Trouble analysis 1. Check temperature difference between intake and discharge air, and operating current. Temp. difference : approx. 0°C All amount of refrigerant leaked out. Current : less than 80% of Check refrigeration cycle. rated current Temp.
Troubleshooting Guide Electronic Parts Troubleshooting Guide 1. A2UW186FA0, A2UW146FA0, A3UW186FA0 Refer to electronic contorol device drawing & schematic diagram. The Product doesn’t operate at all. Trouble 1 Turn off the main power and wait until LED on outdoor PCB is off. Turn on the main power again.
Page 171
Troubleshooting Guide Product doesn't operate with the remote controller. Trouble 2 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.
Page 172
Troubleshooting Guide The Compressor/Outdoor Fan don't operate Trouble 3 Turn on the main power. Operate Cooling Mode by setting the disired temperature of the remote controller is less than one of the Indoor temperature by 1°C at least. When in air circulation mode, compressor/outdoor fan is stopped. Check the sensor for Indoor temperature is attatched as close as to be effected by the themperature of Heat Exchange (EVA.) When the sensor circuit for Indoor temperature and connector are in bad connection or are...
Page 173
Troubleshooting Guide When indoor Fan does not operate. Trouble 4 Turn off main power. Check the connection of CN-FAN. Check the Fan Motor. Check the Fuse(AC250V, T2A). Check the related circuit of indoor Fan Motor. • The pin No. of micom and the part for driving SSR.(Q01M) •...
Troubleshooting Guide When the louver does not operate. Trouble 5 • Confirm that the vertical louver is normally geared with the shaft of Stepping Motor. • If the regular torque is detected when rotating the vertical louver with hands ⇒ Normal •...
Troubleshooting Guide General Information Error Indicator (Indoor) • The function is to self-diagnosis air conditioner and express the troubles if there is any trouble. • Error mark is displayed on display window of indoor units and wired-remote controller, and LED of outdoor unit control board.
Page 176
Troubleshooting Guide Error Indicator (Outdoor) Outdoor Error Ex) Error 21 (DC Peack) 2 Times 2 Times 2 Times LED01G (RED) 1 Sec. 1 Sec. 1 Sec. 1 Time 1 Time 1 Time LED02G (GREEN) 2 Sec. 2 Sec. LED02G Outdoor Error LED01G Contents...
Page 177
Troubleshooting Guide Error Indicator (Outdoor) Outdoor Error LED02G Outdoor Error LED01G Contents Case of error (Green) Status code (Red) CT Circuit 4 times CT Circuit malfunction D-pipe sensor INV. (open/ short) 4 times 1 time Open / Short Air sensor (open/ short) 4 times 4 times Open / Short...
Page 178
Troubleshooting Guide 1) Troubleshooting CH01, CH02, CH06 Display Title Cause of error Check point & Normal condition code • Open / Short Normal resistor : 10KΩ/ at 25°C (Unplugged) Indoor air sensor • Soldered poorly Normal voltage : 2.5Vdc / at 25°C (plugged) •...
Page 179
Troubleshooting Guide 2) Troubleshooting CH03 Display Title Cause of error Check point & Normal condition code • Connection of wire Communication • Open / Short • Main PCB Volt. DC12V Wired R/C • Wrong connection • Noise interference Wired R/C Indoor Unit CN-REMO 12Vdc...
Page 180
Troubleshooting Guide 3) Troubleshooting CH04 Display Title Cause of error Check point & Normal condition code • The connection of wire(Drain pump/ Float switch) • Drain pump power input. (220V) Drain pump • Float switch Open. • Drain tube installation. / Float switch (Normal : short) •...
Page 181
Troubleshooting Guide 4) Troubleshooting CH05, CH53 Display Title Cause of error Check point & Normal condition code • Power input AC 220V. (Outdoor, Indoor) • The connector for transmission is disconnected. • The connecting wires are misconnected. Communication • Communication poorly •...
Page 182
Troubleshooting Guide 5) Troubleshooting CH21 Display Title Cause of error Check point & Normal condition code • An instant over current in the U,V,W phase - Comp lock • Instant over current - The abnormal connection of U,V,W • Over Rated current DC Peak •...
Page 183
Troubleshooting Guide 6) Troubleshooting CH22 Display Title Cause of error Check point & Normal condition code Malfunction of compressor Blocking of pipe Max. C/T Over current (14A ) Low voltage input Refrigerant, pipe length, blocked, … Malfunction of current detection circuit. (Open / Short) Initial current error Internal circuit...
Page 184
Troubleshooting Guide 7) Troubleshooting CH23, CH28 Display Title Cause of error Check point & Normal condition code DC Link • Check the power source. • DC link volt. is Low voltage. • Check the components. 140Vdc . DC Link • DC link volt. is •...
Page 185
Troubleshooting Guide 8) Troubleshooting CH24, CH25 Display Title Cause of error Check point & Normal condition code • Check the connection of “CN_Press”. • Low / High press Press S/W Open • Check the components. S/W open. • Abnormal Input voltage •...
Page 186
Troubleshooting Guide 9) Troubleshooting CH26, CH27 Display Title Cause of error Check point & Normal condition code • Check the connection of comp wire “U,V,W” DC Compressor • Compressor • Malfunction of compressor Position position detect error • Check the component of “IPM”, detection parts. •...
Page 187
Troubleshooting Guide 10) Troubleshooting CH32, CH33 Display Title Cause of error Check point & Normal condition code • Check the discharge pipe sensor for INV. D-pipe (Inverter) • Check the install condition for over load. • Discharge sensor temp. high •...
Page 188
Troubleshooting Guide 11) Troubleshooting CH41, CH44, CH45, CH46, CH47, CH65 Display Title Cause of error Check point & Normal condition code • Open / Short • Normal resistor : 200KΩ / at 25°C (Unplugged) D-pipe sensor (Inverter) • Soldered poorly •...
Page 189
Troubleshooting Guide 12) Troubleshooting CH51, CH60 Display Title Cause of error Check point & Normal condition code • Check the indoor unit capacity. • Over capacity Over capacity • Check the combination table. Combination EEPROM • Check the PCB ASM P/No. •...
Page 190
Troubleshooting Guide 13) Troubleshooting CH61, CH62 Display Title Cause of error Check point & Normal condition code Condenser • Condenser pipe sensor • Check the load condition. pipe sensor detected high • Check the sensor of Condenser pipe sensor. temp. high temp.(65°C) •...
(3-way) Valve (3-way) Valve 3-way Valve (Liguid Side) 3-way Valve (Gas Side) Valve cap Valve cap Open position Open position Closed position Closed position To piping To piping Service Service connection Service Service connection port cap port port cap port To outdoor unit To outdoor unit Service port...
(3-way) Valve (1) Pumping down Liquid side Indoor unit Outdoor unit Close 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Close 2-Way valve Gas side Open 3-Way valve manifold gauge Low- handle Hi- handle (CLOSE) (CLOSE) Procedure •...
Page 193
(3-way) Valve (2) Evacuation (All amount of refrigerant leaked) Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Open 2-Way valve Gas side Open 3-Way valve manifold gauge Vacuum pump Low- handle Hi- handle (OPEN)
Page 194
(3-way) Valve (3) Gas Charging (After Evacuation) Liquid side Indoor unit Outdoor unit Open 2-Way valve Gas side Open 3-Way valve Liquid side Indoor unit Open 2-Way valve Gas side Open 3-Way valve manifold gauge Charging cylinder Low-handle (OPEN) Hi- handle Check valve (OPEN) •...