LG Multi V CRUN Series Installation Manual

INSTALLATION MANUAL LG MODELS: CRUN Series website http://www.lgservice.com e-mail http://www.lgeservice.com/techsup.html IMPORTANT • Please read this installation manual completely before installing the product. • Installation work must be performed in accordance with the national wiring standards by authorized personnel only. • Please retain this installation manual for future reference after reading it thoroughly. ENGLISH ITALIANO ESPAÑOL FRANÇAIS DEUTSCH PORTUGUESE

TABLE OF CONTENTS Safety Precautions.........................3 Installation Process.....................10 Combination of indoor and Outdoor Units...............................11 Selection the Best Location........12 Installation Space ........................13 Lifting Method ..............................16 Installation....................................17 Refrigerant Pipe Installation .......19 Elecrical wiring.............................33 Test Run........................................45 Appendix.......................................50 System Check List.......................58

ENGLISH Safety Precautions Safety Precautions To prevent injury to the user or other people and property damage, the following instructions must be followed. I Be sure to read before installing the air conditioner. I Be sure to observe the cautions specified here as they include important items related to safety. I Incorrect operation due to ignoring instruction will cause harm or damage. The seriousness is classified by the following indications. I Meanings of symbols used in this manual are as shown below. This symbol indicates the possibility of death or serious injury. This symbol indicates the possibility of injury or damage to properties only. Be sure not to do. Be sure to follow the instruction. Indicates a part which must be grounded. Indicates that caution should be taken with rotating parts. (This symbol is displayed on the main unit label.) Indicates that the main switch must be turned off before servicing. (This symbol is displayed on the main unit label.) Beware of electric shock (This symbol is displayed on the main unit label.) Beware of hot surface (This symbol is displayed on the main unit label.) Please pay attention to electric shock. And at servicing, please shut down the power supply for both of Indoor Unit and Outdoor Unit. ELV WARNING Carefully read the labels affixed to the main unit.

install the air conditioner. - Improper installation by the user may result in water leakage, electric shock, or fire. Install the air unit at a place that can with- stand its weight. - Inadequate strength may cause the unit to fall down, resulting in injuries. Use the specified cables for wiring. Make the connections securely so that the outside force of the cable is not applied to the terminals. - Inadequate connection and fastening may gen- erate heat and cause a fire. Prepare for typhoons and other strong winds and earthquakes and install the unit at the specified place. - Improper installation may cause the unit to top- ple and result in injury. Cautions before installation Always use accessories specified by LG Electronics. - Ask an authorized tech- nician to install the accessories. Improper installation by the user may result in water leak- age, electric shock, or fire. Never repair the unit. If the air conditioner must be repaired, consult the dealer. - If the unit is repaired improperly, water leak- age, electric shock, or fire may result. Do not touch the heat exchanger fins. - Improper handling may result in injury. If refrigerant gas leaks during installation work, ventilate the room. - If the refrigerant gas comes into contact with a flame, poisonous gases will be released.

ENGLISH Safety Precautions Install the air conditioner according to this Installation Manual. - If the unit is installed improperly, water leakage, electric shock, or fire may result. Have all electric work done by a licensed electrician according to "Electric Facility Engineering Standard" and "Interior Wire Regulations" and the instructions given in this manual and always use a special circuit. - If the power source capacity is inadequate or electric work is per- formed improperly, elec- tric shock and fire may result. Securely install the cover of control box and the panel. - If the cover and panel are not installed properly, dust or water may enter the outdoor unit and fire or electric shock may result. When installing and moving the air condition- er to another site, do not charge it with a refrigerant different from the refrigerant (R407C) specified on the unit. - If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged. If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration from exceeding the safety limit when the refrigerant leaks. - Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, hazards due to lack of oxygen in the room could result. When moving and reinstalling the air condi- tioner, consult the dealer or an authorized technician. - If the air conditioner is installed improperly, water leakage, electric shock, or fire may result.

Do not install the unit where combustible gas may leak. - If the gas leaks and accumulates around the unit, an explosion may result. Do not use the air conditioner where food, pets, plants, precision instruments, or art- work are kept. - The quality of the food, etc. may deteriorate. Do not use the air conditioner in special envi- ronments. - Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the air conditioner or damage its parts. When installing the unit in a hospital, com- munication station, or similar place, provide sufficient protection against noise. - The inverter equipment, private power generator, high-frequency medical equipment, or radio communication equipment may cause the air conditioner to operate erroneously, or fail to operate. On the other hand, the air conditioner may affect such equipment by creating noise that disturbs medical treatment or image broadcasting. After completing installation work, make sure that refrigerant gas is not leaking. - If the refrigerant gas leaks and is exposed to a fan heater, stove, oven, or other heat source, it may generate noxious gases. Do not reconstruct or change the settings of the protection devices. - If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by LG Electronics are used, fire or explosion may result. Gasolin

Safety Precautions ENGLISH Do not install the outdoor unit at the outside of apartment balcony or veranda or the site of the same installation condition Do not install the unit beside or on the footway which may be flooded or submerged and may be an obstructions for pedestrians to walk. - In case that inevitably install the unit beside the footway, it may cause a problem for your neigh- bors. Do not install the unit on a structure that may cause leakage. - When the room humidity exceeds 80% or when the drain pipe is clogged, con- densation may drip from the indoor unit. Perform collec- tive drainage work together with the outdoor unit, as required. Take measures to prevent children from touching the unit. - Injuries such as cuts could occur if a child touches the surface of the fins on the heat exchanger. Cautions for electrical work and movement Ground the unit. - Do not connect the ground wire to gas or water pipes, lightning rods, or telephone ground lines. Improper grounding may result in electric shock. Install the power cable so that tension is not applied to the cable. - Tension may cause the cable to break and gen- erate heat and cause a fire. Install a leakage circuit breaker, as required. - If a leakage circuit breaker is not installed, electric shock may result. Use power cables of sufficient current carry- ing capacity and rating. - Cables that are too small may leak, generate heat, and cause a fire.

damaged by long use. - If the damage is left uncorrected, the unit may fall and cause personal injury or property damage. Install the drain piping according to this Installation Manual to ensure proper drainage. Wrap thermal insulation around the pipes to prevent condensation. - Improper drain piping may cause water leakage and damage to furniture and other possessions. Be very careful about product transportation. - Only one person should not carry the product if it weighs more than 20 kg. - Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous. - Do not touch the heat exchanger fins, which may result in injury. - When transporting the outdoor unit, suspend it at the specified positions on the unit base. Also support the outdoor unit at four points so that it cannot slip sideways. Safely dispose of the packing materials. - Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries. - Tear apart and throw away plastic packaging bags so that children will not play with them. If children play with a plastic bag which was not torn apart, they face the risk of suffocation. Use only a circuit breaker and fuse of the specified capacity. - A fuse or circuit breaker of a larger capacity or a steel or copper wire may result in a general unit failure or fire. Do not wash the air conditioner units. - Washing them may cause an electric shock.

Safety Precautions ENGLISH Cautions before the test run Turn on the power at least 12 hours before starting operation. - Starting operation immediately after turning on the main power switch can result in severe dam- age to internal parts. Keep the power switch turned on during the operational season. Do not touch the switches with wet fingers. - Touching a switch with wet fingers can cause an electric shock. Do not touch the refrigerant pipes during and immediately after operation. - During and immediately after operation, the refrigerant pipes may be hot or cold, depending on the condition of the refrigerant flowing through the refrigerant piping, compressor, and other refrigerant cycle parts. Your hands may suffer burns or frost-bite if you touch the refriger- ant pipes. Do not operate the air conditioner with the panels and guards removed. - Rotating, hot, or high-voltage parts can cause injuries. Do not turn off the power immediately after stopping operation. - Always wait at least five minutes before turning off the power. Otherwise, water leakage and trouble may occur.

Make relationship between outdoor, indoor, remote controller, and option connections clear.(Prepare control circuit diagram) Take account of gradient of drain piping. Check model name to make sure the fitting is made correctly. Special attention to dryness, cleanness and tightness. Adjust to downward gradient. Make sure airflow is sufficient. Make sure no gaps are left where the insulating materials are joined. Multiple core cable must not be used.(suitable cable should be selected) The foundation must be level. Avoid short circuits and ensure sufficient space is allowed for service. In the final check for 24hours at 3MPa(30.0 kg/cm2) there must be no drop in pressure. The vacuum pump must have a capacity of reaching at least 5mmHg, 3hours Recharge correctly as calculated in this manual, and record the amount of additional refrigerant. Make sure there are no gaps left between the facing mate- rials used on the ceiling. Refer to automatic addressing flowchart. Run each indoor unit in turn to make sure the pipe work has been fitted correctly. Explain the use of the system as clearly as possible to your cus- tomer and make sure all relevant documentation is in order. 10 Outdoor Unit Installation Process Installation Process Determination of division work Preparation of contract drawings Sleeve and insert work Installation of indoor unit Refrigerant piping work Drain pipe work Duct work Heat insulation work Electrical work (connection circuits and drive circuits) Outdoor unit foundation work Installation of outdoor unit Automatic addressing of indoor unit All tight test Vacuum drying Additional charge of refrigerant Fit facing panels Test run adjustment Transfer to customer with explanation The above list indicates the order in which the individual work operations are normally carried out but this order may be varied where local conditions warrants such change.

ENGLISH Combination with indoor and Outdoor Units Combination with indoor and Outdoor Units - The total capacity index of indoor units is the sum of capacity index of each units and should be within the capacity index of the outdoor unit. Model Name of Outdoor Unit 22 ~ 50 (50 ~115%) Range of Total Capacity Index CRUN458S0 CRUN1008T0 48~125 (50 ~ 130%) Index Model Name of Indoor Unit kW Btu/h 7 Ceiling Mounted Cassette Type(one way) Ceiling Mounted Cassette Type(four way) 2.1 7,000 CRNN076TCA0 CRNN076BNG0 CRNN096BJG0 CRNN286BGA0 CRNN366BGA0 CRNN426BGA0 CRNN486BEA0 CRNN126BJG0 Capacity - 9 2.6 9,000 CRNN096TCA0 - 12 3.5 12,000 CRNN126TCA0 18 5.3 18,000 - 24 7.0 24,000 - 28 8.2 28,000 - 36 10.6 36,000 CRNN366TDA0 - 42 12.3 42,000 - CRNN126TEA0 CRNN186TEA0 CRNN246TDA0 CRNN286TDA0 CRNN426TDA0 CRNN486TDA0 - - - - - 48 14.1 48,000 - - Wall Mounted Type Floor Standing Type (With Case) Art Cool Type Convertible Type Index Model Name of Indoor Unit kW Btu/h 7,000 Capacity 9,000 12,000 18,000 24,000 - CRNN096SP*0 - - - CRNN076SRA0 CRNN096SRA0 CRNN126SRA0 CRNN186STA0 - - CRNN126SV*0 CRNN186SV*0 CRNN076CAA0 CRNN096CBA0 CRNN076SU*0 CRNN096SU*0 CRNN126CBA0 CRNN186CCA0 CRNN246CDA0 CRNN126SP*0 Art Cool Type (Wide) - CRNN126SU*0 Art Cool Type (Deluxe) - - 7 2.1 9 2.6 12 3.5 18 5.3 24 7.0 Ceiling concealed Duct Type (Low-Static) Ceiling concealed Duct Type (High-Static) CRNN186BHA0 CRNN246BHA0 - - - - - - CRNN246VBA0 CRNN186VBA0 Note: 1. The mark [*] presents the color of the front panel. Art Cool Type/Art Cool Type(Wide) B: Blue D: Wood M: Metal Art Cool Type(Deluxe) R: Mirror G: Gold B: Blue 2. Combinations in which the total capacity of the connected indoor units exceeds the capacity of the outdoor unit will reduce the capacity of each indoor unit below the rated capacity during simultaneous operation. Therefore, if circumstances allows, combine indoor units within the capacity of outdoor unit.

Select the Best Location Select space for installing outdoor unit, which will meet the following conditions: • No direct thermal radiation from other heat sources • No possibility of annoying the neighbors by noise from unit • No exposition to strong wind • With strength which bears weight of unit • Note that drain flows out of unit when heating • Space out for air passage and service work. Do not install unit to the space where generation, inflow, stagnation, and leak of combustible gas is expected. • Avoid unit installation in a place where acidic solution and spray (sulfur) are often used. • Do not use unit under any special environment where oil, steam and sulfuric gas exist. • Installation restriction on outdoor unit when the outdoor air temperature is -5°C or lower on cooling operation. • It is recommended to fence round the outdoor unit in order to prevent any person or animal from accessing the outdoor untit. • If installation site is area of heavy snowfall, then the following directions should be observed. - Make the foundation as high as possible. - Fit a snow protection hood.

Installation Space ENGLISH Installation Space Individual Installation For CRUN1008T0 Basic space required A space of at least 250 mm is necessary at the back for inlet air. Taking servicing, etc. from the rear into account, a space of about 500 mm should be provided, the same as at the front. When inlet air enters from right and left sides of unit When unit is surrounded by walls D C A A B C D A C B B 500 mm or more 250 mm or more Back(HEX side) 150 mm from the wall 500 mm or more 250 mm or more Back(HEX side) A B C C A B B B A B C H H A F B D E E F C 250 mm or more 500 mm or more Front panel Top discharge (open in principle) Side inlet (open in principle) Rear inlet (open in principle) A B C D E F

sunlight or rain exposure, be careful that heat radi- ation from the condenser is not restricted. • There should not be any animals or plants which could be affected by hot air discharged. • Ensure the spaces indicated by arrows from the wall, ceiling, fence or other obstacles. More than 30cm More than 30cm More than 70cm Sunroof Fence or obstacles When there is an obstruction above the unit 45° or more 300 mm or more 250 mm or more 1000 mm or more Air outlet guide (Procured at the site) 250 mm or more A A B C E D F B C D E F

Installation Space ENGLISH Collective / Continuous installation Space required for collective installation and continuous installation:When installing several units, leave the space between each block as shown below considering passage for air and people. C A A B B B B B C C C C E D A E A B C C E D B D B B (Must be open) Front(panel side) 500 mm or more 150 mm or more A B C D 250 mm or more E 600 mm or more F E E D A A B C C D B D B B D A A B C C D B D B B E E D A A B E E D B D B B D A A B C C D B D B B D A A B C C C C D B D B B D A A B F F D B D B B

the front and rear. • Always lift the unit with ropes attached at four points so that impact is not applied to the unit. • Attach the ropes to the unit at an angle of 40° or less. • Use two ropes at least 7 m long. Lifting method Weight of product: CAUTION Be very careful to carry product. • Do not have only one person carry product if it is more than 20 kg. • PP bands are used to pack some products. Do not use them as a mean for transportation because they are dangerous. • Do not touch heat exchanger fins with your bare hands. Otherwise you may get a cut in your hands. • Tear plastic packaging bag and scrap it so that children cannot play with it. Otherwise plastic packaging bag may suffocate children to death. • When carrying in outdoor unit, be sure to support it at four points. Carrying in and lifting with 3-point sup- port may make outdoor unit unstable, resulting in a fall of it. CRUN1008T0 CRUN458S0 300 kg 125kg 40° or less Rope suspension part A B B A

Installation ENGLISH Location of anchor bolt Installation CRUN1008T0 • Example of collective installation 797±2 797±2 797 797±2 797±2 669±2 250 400 250 400 Installation foot • Individual installation

CRUN1008T0 • Fix the unit tightly with bolts as shown below so that unit will not fall down due to earthquake or gust. • Use concrete or angle for foundation of unit. • Vibration may be transmitted to the installation section and noise and vibration may be generated from the floor and walls, depending on the installation conditions. Therefore, provide ample vibrationproofing (cush- ion pads, cushion frame, etc.). A B C D E Be sure that the corners are firmly seated. If the corners are not firmly seated, the installation feet may be bent. M10 anchor bolt procured at the site. Corner is not seated. Unit (Provide ample vibrationproofing between the unit and the foundation by using cushion pads, cushion frame, etc.) Concrete foundation A B D E C WARNING • Be sure to install unit in a place strong enough to withstand its weight. Any lack of strength may cause unit to fall down, resulting in a personal injury. • Have installation work in order to protect against a strong wind and earthquake. Any installation deficiency may cause unit to fall down, resulting in a personal injury. When building the foundation, give full attention to the floor strength, drain water disposal (during operation, drain water flows out of the unit), and piping and wiring routes.

Refrigerant piping installation ENGLISH Refrigerant piping installation To Outdoor Unit Capped Piping A A B A B ARBL054 ARBL057 ARBL104 ARBL107 ARBL1010 Y branch Header Less than 3.8kW(13,000 Btu/h) ~8.2kW(28,000 Btu/h) ~17.6kW(60,000 Btu/h) 17.6kW(60,000 Btu/h) or more ARBL052S ARBL052L ARBL102S ARBL102L 4 branch 7 branch 10 branch - The method of connection consists of flare connections at the indoor units, brazing connections for the piping of the outdoor unit. Note that the branched sections are brazed. WARNING Always use extreme care to prevent the refrigerant gas (R407C) from the leakage while using fire or flame. If the refrigerant gas comes in contact with the flame from any source, such as a gas stove, it breaks down and generates a poisonous gas which can cause gas poisoning. Never weld in an unventilated room. Always conduct an inspection for gas leakage after installation of the refrigerant piping has been completed. 1. Use the following materials for refrigeration piping. • Material: Seamless phosphorous deoxidized copper pipe 2. Commercially available piping often contains dust and other materials. Always blow it clean with a dry inert gas. 3. Use care to prevent dust, water or other contaminants from entering the piping during installation. 4. Reduce the number of bending portions as much as possible, and make bending radius as big as possible. 5. Always use the branch piping set shown below, which are sold separately. 6. If the diameters of the branch piping of the designated refrigerant piping differs, use a pipe cutter to cut the connecting section and then use an adapter for connecting different diameters to connect the piping. 7. Always observe the restrictions on the refrigerant piping (such as rated length, the difference between high/low pressures, and piping diameter). Failure to do so can result in equipment failure or a decline in heating/cooling performance. 8. A second branch cannot be made after a header. (These are shown by X.) Areas of caution

9. Always use good-quality materials for brazing. 10. The Multi V Series will stop due to an abnormality like excessive or insufficient refrigerant. At such a time, always properly charge the refrigerant to the system. When servicing, always check the notes concerning pipe length and amount of additional refrigerant at both locations. 11. Never perform a pump down. This will not only damage the compressor but also deteriorate the per- formance. 12. Never use refrigerant to perform an air purge. Always evacuate using a vacuum pump. 13. Always insulate the piping properly. Insufficient insulation will result in a decline in heating/cooling perfor- mance, water drops from condensation and other such problems. 14. When connecting the refrigerant piping, make sure the service valves of the outdoor unit is completely closed (the factory setting) and do not operate it until the refrigerant piping for the outdoor and indoor units has been connected, a refrigerant leakage test has been performed and the evacuation process has been completed. 15. Always use a non-oxidizing brazing material for brazing the parts. If a non-oxidizing brazing material is not used, it could cause clogging or damage to the compressor unit. 16. Charge Nitrogen gas for pipe not to be oxidized during brazing. 17. Connect a strainer (Filter/Drier) to liquid pipe outside of service port - strainer (Filter/Drier): DANFOSS product. 18. When recharging refrigerant, the drier in outdoor unit should be replaced. WARNING When installing and moving the air conditioner to another site, be sure to make refrigerant recharged after perfect evacuation. - If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged. CAUTION When connecting the piping from outdoor unit(CRUN1008T0), the pipe withdraw hole of front panel should be cut, the cutout section is so sharp that it may cause an wound on finger. - The cut section should be eliminated and smooth. : Cut section

Refrigerant piping installation ENGLISH Refrigerant piping system N Y branch method CRUN458S0 A L 70m 12m 30m l 30m H h b c d B C C C C C A 1 2 3 4 5 C D e D a B Example : 5 indoor units connected : outdoor unit : 1st branch (branch union) : indoor units : downward indoor unit ➲ Piping diameter (A) - Liquid pipe : Ø12.7mm(1/2 inch) - Gas pipe : Ø19.05mm(3/4 inch) ➲ Refrigerant pipe diameter from branch to branch (B,C,D) ➲ Total pipe length = A+B+C+D+a+b+c+d+e ≤ 100m Downward indoor unit total capacity [kW(Btu/h)] ~8.2(28,000) ~15.0(51,000) Ø9.52 Ø12.7 Ø15.88 Ø19.05 Liquid pipe (mm) Gas pipe (mm) Longest pipe length A+B+C+D+e ≤ 70m Longest pipe length after 1st branch B+C+D+e ≤ 30m Difference in height(outdoor ↔ indoor) H ≤ 30m ( 20m : outdoor is lower than indoor units) Difference in height (indoor ↔ indoor) h ≤ 12m L l H h

CRUN1008T0 Example : 5 indoor units connected : outdoor unit : 1st branch (branch union) : indoor units : downward indoor unit ➲ Piping diameter (A) - Liquid pipe : Ø15.88mm(5/8 inch) - Gas pipe : Ø28.58mm(9/8 inch) ➲ Refrigerant pipe diameter from branch to branch (B,C,D) ➲ Total pipe length = A+B+C+D+a+b+c+d+e ≤ 220m A L 100m 15m 50m l 30m H h a b c d B C C C C C B A 1 2 3 4 5 C D e D Downward indoor unit total capacity [kW(Btu/h)] ~8.2(28,000) ~17.6(60,000) ~28.1(96,000) ~36.3(125,000) Ø9.52(3/8) Ø12.7(1/2) Ø12.7(1/2) Ø15.88(5/8) Ø15.88(5/8) Ø19.05(3/4) Ø25.4(1) Ø28.58(9/8) Liquid pipe [mm(inch)] Gas pipe [mm(inch)] Longest pipe length A+B+C+D+e ≤ 100m Longest pipe length after 1st branch B+C+D+e ≤ 30m Difference in height(outdoor ↔ indoor) H ≤ 50m ( 40m : outdoor is lower than indoor units) Difference in height (indoor ↔ indoor) h ≤ 15m L l H h

Refrigerant piping installation ENGLISH N Header Method CRUN458S0 Example : 6 indoor units connected : outdoor unit : 1st branch : indoor units : sealing ➲ Piping diameter (A) - Liquid pipe : Ø12.7mm(1/2 inch) - Gas pipe : Ø19.05mm(3/4 inch) ➲ Total pipe length = A+a+b+c+d+e+f ≤ 100m A L 70m 12m 30m l 30m H h c d B D C C C C C A 1 2 3 4 e C 5 6 f X b a Longest pipe length A+f ≤ 70m Longest pipe length after 1st branch f ≤ 30m Difference in height(outdoor ↔ indoor) H ≤ 30m ( 20m : outdoor is lower than indoor units)* Difference in height (indoor ↔ indoor) h ≤ 12m L l H h Branch pipe can not be used after header * Indoor unit should be installed at lower position than the header.

CRUN1008T0 Example : 6 indoor units connected : outdoor unit : 1st branch : indoor units : sealing ➲ Piping diameter (A) - Liquid pipe : Ø15.88mm(5/8 inch) - Gas pipe : Ø28.58mm(9/8 inch) ➲ Total pipe length = A+a+b+c+d+e+f ≤ 220m A L 100m 15m 50m l 30m H h c d B D C C C C C A 1 2 3 4 e C 5 6 f X b a Longest pipe length A+f ≤ 100m Longest pipe length after 1st branch f ≤ 30m Difference in height(outdoor ↔ indoor) H ≤ 50m ( 40m : outdoor is lower than indoor units)* Difference in height (indoor ↔ indoor) h ≤ 15m L l H h * Indoor unit should be installed at lower position than the header Branch pipe can not be used after header

Refrigerant piping installation ENGLISH N Combination of Y branch/header method CRUN458S0 Example : 5 indoor units connected : outdoor unit : 1st branch (branch union) : Y branch : indoor unit : header : sealing : downward indoor unit ➲ Piping diameter (A) - Liquid pipe : Ø12.7mm(1/2 inch) - Gas pipe : Ø19.05mm(3/4 inch) ➲ Refrigerant pipe diameter from branch to branch (B,C) ➲ Total pipe length = A+B+C+a+b+c+d+e ≤ 100m A L 70m 30m l 30m H D D G 12m h d e b 2 1 E F D D 4 D 3 5 X c C B C A a B Downward indoor unit total capacity [kW(Btu/h)] ~3.8(13,000) ~8.2(28,000) ~15.0(51,000) Ø6.35(1/4) Ø9.52(3/8) Ø12.7(1/2) Ø12.7(1/2) Ø15.88(5/8) Ø19.05(3/4) Liquid pipe [mm(inch)] Gas pipe [mm(inch)] Longest pipe length A+B+b ≤ 70m Longest pipe length after 1st branch B+b ≤ 30m Difference in height(outdoor ↔ indoor) H ≤ 30m ( 20m : outdoor is lower than indoor units)* Difference in height (indoor ↔ indoor) h ≤ 12m L l H h * Indoor unit should be installed at lower position than the header Branch pipe can not be used after header

CRUN1008T0 Example : 5 indoor units connected : outdoor unit : 1st branch (branch union) : Y branch : indoor unit : header : sealing : downward indoor unit ➲ Piping diameter (A) - Liquid pipe : Ø15.88mm(5/8 inch) - Gas pipe : Ø28.58mm(9/8 inch) ➲ Refrigerant pipe diameter from branch to branch (B,C) ➲ Total pipe length = A+B+C+a+b+c+d+e ≤ 220m A L 100m 50m l 30m H D D G 15m h d e b a 2 1 E F D D 4 D 3 5 X c C B C A B Downward indoor unit total capacity [kW(Btu/h)] ~8.2(28,000) ~17.6(60,000) ~28.1(96,000) ~36.3(125,000) Ø9.52(3/8) Ø12.7(1/2) Ø12.7(1/2) Ø15.88(5/8) Ø15.88(5/8) Ø19.05(3/4) Ø25.4(1) Ø28.58(9/8) Liquid pipe [mm(inch)] Gas pipe [mm(inch)] Longest pipe length A+B+b ≤ 100m Longest pipe length after 1st branch B+b ≤ 30m Difference in height(outdoor ↔ indoor) H ≤ 50m ( 40m : outdoor is lower than indoor units)* Difference in height (indoor ↔ indoor) h ≤ 15m L l H h Branch pipe can not be used after header * Indoor unit should be installed at lower position than the header

Refrigerant piping installation ENGLISH N Indoor Unit Connection N Distribution Method Line Distribution With line distribution method, it is possible to make the first or the second main pipe distribution within the third branch, And do not make the main pipe distribution, at or after the fourth branch. Note- Main Pipe Distribution : Distribution from One Multi-kit to Two Multi-kits(mark with a circle) ➲ Indoor unit connecting pipe from branch (a,b,c,d,e) Total pipe length ≤ 220m Total pipe length ≤ 100m Downward indoor unit total capacity [kW(Btu/h)] 2.1(7,000), 2.6(9,000), 3.5(12,000) 5.3(18,000), 7.0(24,000), 8.2(28,000) 10.5(36,000), 12.3(42,000), 14.0(48,000) Ø6.35(1/4) Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø15.88(3/8) Ø19.05(3/4) Liquid pipe [mm(inch)] Gas pipe [mm(inch)] A L 100m 50m l 30m H D D G 15m h d e b a 2 1 E F D D 4 D 3 5 X c C B C A B A L 70m 30m l 30m H D D G 12m h d e b 2 1 E F D D 4 D 3 5 X c C B C A a B 1st 2nd 3rd Correct better 1st 2nd 3rd Incorrect Incorrect 1st 2nd 3rd Correct permit Incorrect 2nd Main Pipe Distribution 1st Main Pipe Distribution 1st 2nd 3rd 4th 2nd Main Pipe Distribution Incorrect 1st Main Pipe Distribution

N The Amount of Refrigerant The calculation of the additional charge should take account of the length of pipe. Regulation for refrigerant leakage(in Europe) : the amount of refrigerant leakage should satisfy the following equation for human safety. ❐ If the above equation can not be satisfied, then follow the following steps. - Selection of air conditioning system: select one of the next 1. Effective opening part Installation 2. Reconfirmation of outdoor unit capacity and piping length 3. Reduction of the amount of refrigerant 4. 2 or more security device installation of alarm 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 indoor unit of the least capacity is installed Additional charge (kg) CRUN1008T0 charge = 10.0kg CRUN458S0 charge = 3.5kg = x x x x + + + + = + Total liquid pipe (m): Ø15.88mm 0.2(kg/m) 0.12(kg/m) 0.06(kg/m) 0.025(kg/m) CRUN458S0 : CF = 1.0 CRUN1008T0 : CF = 4.9 Total liquid pipe (m): Ø12.7mm Total liquid pipe (m): Ø9.52mm Total liquid pipe (m): Ø6.35mm CF(kg) (Correction Factor) Total amount(kg) A A B B B A B B B B A B C X b a c d 3 4 5 2 1 e Outdoor Unit(CRUN1008T0) Indoor Unit A : ø15.88, 60m B : ø9.52, 20m C : ø12.7, 20m Additional Charge = A x 0.2 + B x 0.06 + C x 0.12 + (a+b+c+d+e) x 0.025 + CF = 60 x 0.2 + 20 x 0.06 + 20 x 0.12 + (10 x 5) x 0.025 + 4.9 = 21.75 (kg) a : ø6.35, 10m b : ø6.35, 10m c : ø6.35, 10m d : ø6.35, 10m e : ø6.35, 10m WARNING

Refrigerant piping installation ENGLISH Branch pipe Fitting Y branch A B To Outdoor Unit To Branch Piping or Indoor Unit A B Facing upwards Viewed from point A in direction of arrow Horizontal plane Within +/- 10° A Insulator (included with kit) Liquid and gas pipe joints Insulator for field piping Tape (field supply) A B Header To outdoor unit To indoor unit A B C • 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 should be cut with a pipe cutter. • Branch pipe should be insulated with the insulator in each kit. • When the number of pipes to be connected is smaller than the number of header branches, install a cap to the unconnected branches. • The indoor unit having larger capacity must be installed closer to than smaller one. • If the diameter of the refrigerant piping selected by the procedures described is different from the size of the joint, the connecting section should be cut with a pipe cutter. Pipe cutter

• When the number of indoor units to be connected to the branch pipes is less than the number of branch pipes available for connection then cap pipes should be fitted to the surplus branches. • Fit branch pipe lie in a horizontal plane. • Header should be insulated with the insulator in each kit. • Joints between branch and pipe should be sealed with the tape included in each kit. • Any cap pipe should be insulated using the insulator provided with each kit and then taped as described above. B Piched pipe Horizontal plane View from point B in the direction of the arrow Insulate the header using the insulation material attached to the branch pipe kit as shown in the figure. Insulator Insulator of field pipe Tape Tape Cap pipe Insulator for cap pipe

Refrigerant piping installation ENGLISH Airtight Test and Evacuation Lo Vacuum pump 3-Way valve Outdoor unit Liquid side Indoor unit Gas side 3-Way valve Lo Charging cylinder Outdoor unit Indoor unit Liquid side Gas side Check valve (1) 3-Way valve Scale Use a gravimeter. (One that can measure down to 0.1 kg.). If you are unable to prepare such a high- precision gravimeter you may use a charge cylinder. • Evacuation should be done for 3 hours or more after the pressure is under 5 tor. (1) Airtight test Airtight test should be made by pressurizing nitrogen gas to 2.94 MPa. For the test method, refer to the following figure. (Make a test with the service valves closed. Be also sure to pressurize both liquid pipe and gas pipe.) The test result can be judged good if the pressure has not been reduced after leaving for about one day after completion of nitrogen gas pressurization. (2) Evacuation Evacuation should be made from the service port provided on the outdoor unit’s service valve to the vacuum pump commonly used for both liquid pipe and gas pipe. (Make evacuation from both liquid pipe and gas pipe with the service valve closed.) * Never perform air purging using refrigerant. Note : Always add an appropriate amount of refrigerant. (For the refrigerant additional charge) Too much or too little refrigerant will cause trouble. WARNING When installing and moving the air conditioner to another site, recharge after perfect evacuation. - If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged.

Thermal insulation of refrigerant piping Steel wire Piping Asphaltic oily mastic or asphalt Heat insulation material A Outer covering B Heat insulation material A Outer covering B Glass fiber + Steel wire Adhesive + Heat - resistant polyethylene foam + Adhesive tape Indoor Vinyl tape Floor exposed Water-proof hemp cloth + Bronze asphalt Outdoor Water-proof hemp cloth + Zinc plate + Oily paint Note: When using polyethylene cover as covering material, asphalt roof- ing shall not be required. • Do not insulate gas or low pressure pipe and liquid or high pressure pipe together. • Be sure to fully insulate connecting portion. Liquid pipe Gas pipe Electric wire Finishing tape Insulating material Bad example Good example These parts are not insulated. B A C D E A B C D E A C D D E E F E B A C A B C D E Transmission cable F Transmission cable F Liquid pipe Gas pipe Electric wire Finishing tape Insulating material A B C D E Transmission cable F Liquid pipe Gas pipe Electric wire Finishing rectangular pipe Insulating material A B C D E A A B F A E F B D C E Be sure to give insulation work to refrigerant piping by covering liquid pipe and gas pipe separately with enough thickness heat-resistant polyethylene, so that no gap is observed in the joint between indoor unit and insulating material, and insulating materials themselves. When insulation work is insufficient, there is a possibility of condensation drip, etc. Pay special attention to insulation work to ceiling plenum. 1m 1m A B D F G B G D B H I J A E B I A B D C Inner wall (concealed) Floor (fireproofing) Penetrating portion on fire limit and boundary wall Roof pipe shaft Outer wall Outer wall (exposed) Penetrations Sleeve Heat insulating material Lagging Caulking material Band Waterproofing layer Sleeve with edge Lagging material Mortar or other incombustible caulking Incombustible heat insulation material When filling a gap with mortar, cover the penetration part with steel plate so that the insulation material will not be caved in. For this part, use incombustible materials for both insulation and covering.(Vinyl covering should not be used.)

Electrical Wiring ENGLISH Electrical Wiring Areas of Caution TB6 TB6 TB6 TB6 A A E C D B C D B TB6: Transmission line terminal block Outdoor unit 2-core cable Indoor unit Remote controller Multi-core cable A B C D E 1. Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. WARNING Be sure to have authorized electric engineers do electric work using special circuits in accordance with regulations and this installation manual. If power supply circuit has a lack of capacity or electric work deficiency, it may cause an electric shock or fire. 2. Install the outdoor unit transmission line away from the power source wiring so that it is not affected by elec- tric noise from the power source. (Do not run it through the same conduit.) 3. Be sure to provide designated grounding work to outdoor unit. CAUTION Be sure to put outdoor unit to earth. Do not connect earth line to any gas pipe, water pipe, lightening rod or telephone earth line. If earth is incomplete, it may cause an electric shock. 4. Give some allowance to wiring for electrical part box of indoor and outdoor units, because the box is some- times removed at the time of service work. 5. Never connect the main power source to terminal block of transmission line. If connected, electrical parts will be burnt out. 6. Use 2-core shield cable for transmission line.(O mark in the figure below) If transmission lines of different sys- tems are wired with the same multiplecore cable, the resultant poor transmitting and receiving will cause erro- neous operations. (X mark in the figure below) 7. Only the transmission line specified should be connected to the terminal block for outdoor unit transmission. (Transmission line to be connected with indoor unit : Terminal block TB6 for transmission line, and central control)

- Remove all of the screws at front -upper panel, and remove the front panel by pulling it forward - Connect indoor and outdoor units through the terminal block for transmission lines. Outdoor units and connections to central control systems go through the sub PCB for central control. - When making an indoor/outdoor connection with shielded wiring, connect the shield ground to the earth screw. When making a central control system connection with shielded wiring, use the terminal block for central control. - For the distance from main power lines to transmission lines refer to pages 35~37. - Refer to pages 38~40 for automatic addressing and 45~49 for test run. WARNING The temperature sensor for outdoor air should not be exposed to direct sunlight. -Take a appropriate cover to intercept direct sunlight. C D Vcc GND A B Inverter board Control board Terminal block for indoor unit transmission lines - - Be careful for misconnection or cross connection of the transmission lines - Be careful for the polarity of main power lines R(CB) R(TB), S(CB) S(TB) T(CB) T(TB), N(CB) N(TB) (TB: terminal block, CB: circuit breaker) Sub PCB for simple central control or internet control R S T N Terminal block for main power lines

Electrical Wiring ENGLISH Transmission and Power Lines 1) Transmission cable • Types : shielding wire CVVS or CPEVS • Diameter : over 0.75mm2 • Insulation material : PVC • Maximum allowable temperature: 60°C • Maximum allowable line length: under 300m 2) Remote control cable • Types : 3-core cable • Diameter : 0.5mm2 • Maximum length: 100m(over 50m, use over 0.5mm2) 3) Simple central control cable • Types : 4-core cable • Diameter : over 0.75mm2 • Insulation material : PVC • Maximum allowable line length: under 100m 4) Separation of transmission and power lines • If transmission and power lines are run alongside each other then here is a strong likelihood of operational faults developing due to interference in the signal wiring caused by electrostatic and electromagnetic cou- pling. The table below indicates our recommendation as to appropriate spacing of transmission and power lines where these are to be run side by side. Note: 1. The figures are based on assumed length of parallel cabling up to 100m. For length in excess of 100m the figures will have to be recalculated in direct proportion to the additional length of line involved. 2. If the power supply waveform continues to exhibit some distortion, the recommended spacing in the table should be increased. • If the lines are laid inside conduits then the following point must also be taken into account when grouping various lines together for introduction into the conduits. - power lines(including power supply to air conditioner) and signal lines must not be laid inside the same - In the same way, when grouping the lines power and signal lines should not be bunched together. CAUTION • Have the indoor and outdoor units both been earthed? I If apparatus is not properly earthed then there is always a risk of electric shocks, the earthing of the apparatus must be carried out by a qualified person. Current capacity of power line Spacing 10A 300mm 50A 500mm 100A 1000mm 100A or more 1500mm 100V or more

Branch Capacity Fuse Model 30 50 30 50 4.0 6.0 – – 4.0 6.0 Wire Thickness (mm2) Main Cable Model Indoor Unit All Models Branch Switch (A) Capacity Fuse 25 25 Ground 2.5 2.5 2.5 Ground Main Cable Breaker for Wiring (NFB) 30 A 50 A Breaker for Current Leakage 30 A 100mA 0.1 sec. or less 50 A 100mA 0.1 sec. or less Breaker for Wiring (NFB) Breaker for Current Leakage 25 A 20 A 30mA 0.1 sec. or less D G H H H H H H H F C B B A E A Power Supply (3-Phase, 4-Wire) 380/400/415 Volt B Switch C Outdoor Unit D Ground E Power Supply (Single-Phase) 220/230/240 Volt F 1.5 mm2 or more G Pull Box H Indoor Unit CRUN0458S0 CRUN01008T0 1. Use a separate power supply for the outdoor unit and indoor unit. 2. Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections. 3. The wire size is the minimum value for metal conduit wiring. The power cable size should be 1 rank thicker taking into account of line voltage drops. Make sure the power-supply voltage does not drop more than 10%. 4. Specific wiring requirements should adhere to the wiring regulations of the region. 5. Power supply cable of parts of appliances for outdoor use shall not be lighter than polychloroprene sheathed flexible cable (design 245IEC57). For example, use wiring such as YZW. WARNING • Be sure to use specified wires for connections so that no external force is imparted to terminal connec- tions. If connections are not fixed firmly, it may cause heating or fire. • Be sure to use the appropriate type of overcurrent protection switch. Note that generated overcurrent may include some amount of direct current. CAUTION • Some installation site may require attachment of an earth leakage breaker. If no earth leakage breaker is installed, it may cause an electric shock. • Do not use anything other than breaker and fuse with correct capacity. Using fuse and wire or copper wire with too large capacity may cause a malfunction of unit or fire. N Wiring of Main Power Supply and Equipment Capacity Schematic Drawing of Wiring (Example)

Electrical Wiring ENGLISH Power supply 3 phase 50Hz 380~415V Power supply 1 phase 50Hz 220~240V : 3 Phase power line : Single phase power line : Transmission line(2 wire) Power supply switch (Switch/Fuse) Outdoor Unit Control Box TB6 Indoor unit Central controller A B Vcc GND C D 3 4 3 4 3 4 N Example Connection of Transmission Cable

- CRUN1008T0 ➀ Press the switch(SW02M) of outdoor unit for 5 seconds ➁ 7-segment of Main PCB in outdoor unit : displays "88" ➂ 2~3 minutes passed after ➁, the address of each indoor unit is displayed at each wired remote controller or display device of each indoor unit. - CRUN458S0 ➀ Press the switch(SW01M) of outdoor unit for 5 seconds ➁ LED01C is ON. ➂ 2~3 minutes passed after ➁, the address of each indoor unit is displayed at each wired remote controller or display device of each indoor unit. CAUTION • In the Art Cool type (CRNN-SV) indoor unit, the address is not displayed after auto- matic addressing. CAUTION • If the PCB in indoor unit is replaced with new PCB for service, then the Automatic addressing should be executed. CRUN1008T0 Control board Automatic Addressing CRUN458S0 Control board

Electrical Wiring ENGLISH N The Procedure of Automatic Addressing CRUN458S0 Indoor address number is displayed on wired remote controller or indoor unit display window. It is not an error message. Address number will be disappeared when on/off button is pressed on remote controller. ex) Display of 01, 02, ..., 05 means connection of 5 indoor units and auto addressing is completed normally.

display window. It is not an error message. Address number will be disappeared when on/off button is pressed on remote controller. ex) Display of 01, 02, ..., 15 means connection of 15 indoor units and auto addressing is completed normally.

Electrical Wiring ENGLISH Group Number Setting for Indoor Units A B GND 12V Vcc GND D C C D Indoor unit Central controller Simple central Controller Terminal block of outdoor unit • Group number of each indoor unit is set with rotary switch of control PCB in each indoor unit. • Before power is supplied, the rotary switch for simple central controller on the indoor unit PCB should be set. • ID Mapping of Rotary Switch is following table. SW01M(GROUP) SW02M(UNIT) Each rotary switch setting in Indoor Simple central controller recognition 0 0~F 1 0~F 2 0~F 3 0~F 4 0~F 5 0~F 6 0~F 1stGroup, 0~F Unit 2ndGroup, 0~F Unit 3rdGroup, 0~F Unit 4thGroup, 0~F Unit 5thGroup, 0~F Unit 6thGroup, 0~F Unit 7thGroup, 0~F Unit 7 0~F 8thGroup, 0~F Unit ➀ Confirm the power of whole system(indoor unit, outdoor unit) is OFF, otherwise turn off. ➁ The transmission lines connected to C, D of simple central controller should be connected to C,D terminal port for central control of outdoor unit with care for their polarity.(C ➔ C, D ➔ D) ➂ DC power line(12V) and ground line should be connected to terminal block of adjacent indoor unit. ➃ Set group number with increasing the rotary switch from 00 to 7F in orderly manner. (if it is desired to control several indoor units as a group, each group control is possible by group ID rotary switch setting from 0 to 7) ➄ The whole system power turns on.

Outdoor Unit 2 Control box Outdoor Unit 1 Control box 003 004 005 006 007 008 002 001 Control Board Sub PCB < Group Number 0 > < Group Number 1 > The connection of Master and Slave Master Slave For Master the First switch of DIP switch should be ON and the other three switches can be On or Off (Don’t Care Condition) For Slave the First switch of DIP switch should be OFF and the other three switches can be On or Off (Don’t Care Condition) Central Controller Unit 1 GND Vcc D C DIP SWITCH DIP SWITCH C V D G A B C V D G A B 103 104 105 106 107 108 102 101 Control Board Sub PCB Central Controller Unit 2 GND Vcc D C C V D G A B C V D G A B TB6 TB6 Master /Slave Mode Select S/W Vcc GND C D Group Number Setting S/W ❑ PC Borad of Simple Cental Controller

Electrical Wiring ENGLISH Group ID rotary S/W Indoor unit ID rotary S/W Indoor unit ID rotary S/W Group ID rotary S/W Group ID S/W Indoor unit ID rotary S/W Cassette, Duct, Convertible type indoor unit Wall mounted type indoor unit Artcool type indoor unit N Position of rotary switch on the indoor unit

44 Outdoor Unit Electrical Wiring Operation unit ZONE 1 2 3 4 Humidify JET AUTO AUTO SWING OPERATION FAN SPEED Program 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 (Standard) Indoor Unit 2 Main PCB Indoor Unit 16 Connector RED(12V) YL(SIGNAL) BR(GND) RED(12V) YL(SIGNAL) BR(GND) YL(SIGNAL) BR(GND) Connecting Cable(Local Supply) Connector Connector .... .... YL(SIGNAL) BR(GND) YL(SIGNAL) BR(GND) YL(SIGNAL) BR(GND) Remote Controller PCB Single Group Slide Switch2 • Using the supplied Wired Remote Controller, wire them like above. • Move slide switch 2 to "Group" position. • Ensure that the color of wire. CAUTION • Be careful not to exchange the color of wires. • The maximum length of connecting wire should be below 200m(25Ω) on connecting each units. • Use a wire more than 0.5mm2 It operates maximum 16 Units by only one Wired Remote Controller, and each unit starts sequentially to prevent overcurrent.

ENGLISH Test Run Test Run 1 2 3 4 5 Check to see whether there is any refrigerant leakage, and slack of power or transmission cable. Confirm that 500 V megger shows 2.0 (1.0) MΩ or more between power supply terminal block and ground. Do not operate in the case of 2.0 (1.0) MΩ or less. NOTE: Never carry out megaohm check over terminal control board. Otherwise the control board would be broken. Immediately after mounting the unit or after leaving it turned off for an extended length of time, the resistance of the insulation between the power supply terminal board and the ground may decrease to approx. 2 (1) MΩ as a result of refrigerant accumulating in the internal compressor. If the insulation resistance is less than 2 (1) MΩ, turning on the main power supply and energiz- ing the crankcase heater for more than 12 hours will cause the refrigerant to evaporate, increasing the insulation resistance. Check if both gas and liquid valves are fully opened. NOTE: Be sure to tighten caps. Turn on universal power supply at least 12 hours before the test run to ensure the crank case heater should heat up the compressor. If the turn-on hours of the heater are too short, it may result in a mal- function of compressor. Check if there are any problems in automatic addressing or not: Check and confirm that there are no error messages in the display of indoor units or remote controllers and LED in outdoor units. Checks Before Test Run Content of parentheses ( ) is for CRUN458S0

The phenomena from main component failure Compressor Outdoor fan Outdoor LEV Not operating Stop during running Loud noise during running High pressure error at cooling Heating failure, fre- quent defrosting No operating sound at applying power Heating failure, Frozen outdoor heat exchanger part Low pressure error or discharge temper- ature error Motor insulation broken Strainer locking Oil shortage Motor insulation failure Phase sequence fault Motor failure, Bad ventilation around outdoor heat exchanger Bad connector contact Coil failure LEV clogged LEV clogged Check resistance between terminals and chassis Service necessary Open drain cock and check oil Check resistance between terminals and chassis Check wiring(R, S, T) sequence, or lnter change last two phase connection. Check the outdoor fan operation after turning the outdoor unit off for some time. Remove obstacles around the outdoor unit. Check connector Check resistance between terminals Service necessary Service necessary Component Phenomenon Cause Check method and Trouble shooting When system fault occurs, the error code is displayed at indoor unit display or remote controller display, the trouble shooting guide is in the service manual. Indoor Unit Remote controller Outdoor Unit

ENGLISH Test Run Self-Diagnosis Function Error Indicator • The function is to self-diagnose airconditioner and indicate the problems, if any. • Error mark is displayed on display window of indoor units and wired remote controller, and 7-segment LED of outdoor unit control board as shown in the table. • If more than two troubles occur simultaneously, lower number of error code is first displayed. • After error occurrence, if error is released, error LED is also released simultaneously. Display Title Cause of Error 0 0 0 0 0 0 0 0 0 1 2 3 4 5 6 7 8 9 2 2 2 2 2 1 2 3 4 5 3 3 3 3 3 1 2 3 4 5 Indoor unit air sensor Indoor unit sensor(inlet pipe) Wired remote controller ↔ indoor unit transmission Drain pump Outdoor unit ↔ indoor unit trans- mission Indoor unit outlet pipe sensor The other operation mode Not in use Serial No. Error DC peak Max CT DC link High pressure Low/Over voltage Not in use Discharge temperature (inverter compressor) Discharge temperature (constant speed compressor) High pressure Low pressure Indoor unit air sensor open or short Indoor unit inlet pipe sensor open or short In the case that indoor unit can not receive any signal from wired remote controller successively for 3 minutes Malfunction of drain pump In the case that indoor unit can not receive any signal from outdoor unit successively for 3 minutes Indoor unit outlet pipe sensor open or short In the case that an indoor unit is operated the other operation mode different from the operated indoor unit Not in use In the case that the serial number marked on EEPROM of indoor unit is 0 or FFFFFF IPM over temperature or compressor malfunction is occurred 3 times in 1 hour When current detection is over the maximum current limit DC charging is not performed for 45 sec after starting relay turn on Compressor is OFF 3 times in 1 hour due to high pressure Input voltage is out of tolerance of rating voltage Not in use Due to over rising of inverter compressor discharge tem- perature, Compressor off is occurred 3 times in 1 hour Due to over rising of constant speed compressor dis- charge temperature, Compressor off is occurred 3 times in 1 hour Due to high pressure, Compressor off is occurred 3 times in 1 hour Due to low pressure, Compressor off is occurred 3 times in 1 hour Indoor unit related error Power related error Compressor related error

Inverter compressor dischare pipe sensor open or short Low pressure sensor open or short High pressure sensor open or short Outdoor unit air sensor open or short Outdoor unit pipe sensor(left) open or short Suction pipe sensor open or short Normal compressor discharge pipe sensor open or short Outdoor unit pipe sensor (right) open or short Voltage sensor open or short Display Title Cause of Error 4 4 4 4 4 4 4 4 4 4 0 1 2 3 4 5 6 7 8 9 5 5 5 5 5 5 5 1 2 3 4 5 6 7 CT sensor Inverter compressor discharge pipe sensor (discharge temperature) Low pressure sensor High pressure sensor Outdoor air sensor Outdoor unit pipe sensor Suction pipe sensor Normal compressor discharge pipe Outdoor unit pipe sensor Voltage sensor Indoor connection over(capacity) Transmission error from inverter PCB to main PCB in the outdoor unit Transmission error from indoor unit to main PCB in the outdoor unit Reverse connection of the R,S,T power line Transmission error from central control to main PCB in the outdoor unit Transmission error from main PCB in the outdoor unit to central control Transmission error from main PCB to inverter PCB in the outdoor unit The displayed number of indoor units being connected is over rated capacity of outdoor unit In the case that main PCB can not receive any signal from inverter PCB successively for 20 seconds In the case that main PCB can not receive any signal- from indoor unit successively for 3minutes Misconnection or disconnection of R,S,T power line In the case that main PCB can not receive any signal from central control successively for 3minutes In the case that central control can not receive any signal from main PCB successively for 3minutes In the case that inverter PCB can not receive any sig- nal from main PCB successively for 20 seconds Outdoor unit related error Transmission related error I Error code 52, 53, 54, 56, 57 are applied only to CRUN1008T0 I Please refer to trouble shooting guide in service manual for each error title CAUTION In case that the control box is opened and before checking electrical parts, it should be checked that the LED 01Y (Refer to next page) turned off (wait 3 minutes after main power OFF), otherwise it may cause electrical shock.

ENGLISH Test Run Position of the LED01Y in inverter board CRUN1008T0 Inverter board

ENGLISH Appendix Air TH 4way valve High pressure S/W Discharge pipe TH Suction pipe TH Oil separator Receiver Dryer LIQUID INJECTION HOT GAS BYPASS Solenoid valve Inverter Compressor Strainer Strainer Accumulator Low pressure Sensor High pressure Sensor Strainer Solenoid valve Pipe TH LEV Strainer Check valve : Cooling : Heating CRUN458S0 Piping Diagram

Accumulator Low pressure Sensor Air TH High pressure Sensor 4way valve LEV LEV : Cooling : Heating : Solenoid valve : Check valve : Strainer : Thermistor Inverter comp. Normal comp. CRUN1008T0

ENGLISH Appendix Preparation of Piping 1) Cut the pipes and the cable. I Use the accessory piping kit or the pipes purchased locally. I Measure the distance between the indoor and the out- door unit. I Cut the pipes a little longer than measured distance. I Cut the cable 1.5m longer than the pipe length. 2) Burrs removal I Completely remove all burrs from the cut cross section of pipe/tube. I Put the end of the copper tube/pipe to downward direc- tion as you remove burrs in order to avoid to let burrs drop in the tubing. 3) Putting nut on I Remove flare nuts attached to indoor and outdoor units, then put them on pipe/tube having completed burr removal. (Not possible to put them on after flaring work) 4) Flaring work I Carry out flaring work using flaring tool as shown below. Firmly hold copper tube in a bar(or die) as indicated dimension in the table above. 5) Check I Compare the flared work with figure below. I If flare is noted to be defective, cut off the flared section and do flaring work again. Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. Outside Diameter " A " Gas Liquid Gas Liquid 18k Btu/h 5/8" 1/4" 0.8~1.0 0~0.5 24k Btu/h 5/8" 1/4" 0.8~1.0 0~0.5 30k Btu/h 5/8" 3/8" 0.8~1.0 0.5~0.8 36k Btu/h 5/8" 3/8" 0.8~1.0 0.5~0.8 42k Btu/h 3/4" 3/8" 1.0~1.3 0.5~0.8 48k Btu/h 3/4" 3/8" 1.0~1.3 0.5~0.8 60k Btu/h 3/4" 1/2" 1.0~1.3 0.5~0.8 Capacity Copper tube 90° Slanted Uneven Rough Pipe Reamer Point down Flare nut Copper tube Bar Copper pipe Clamp handle Red arrow mark Cone Yoke Handle Bar "A" Inclined Inside is shining without scratches. Smooth all round Even length all round Surface damaged Cracked Uneven thickness = Improper flaring =

ing and bending back the same piping point more than three times. (This will result in hardening the pipe.) 2. After deforming the piping, align centers of the union fitting of the indoor unit and the piping, and tighten them firmly with wrenches. 3. Connect pipe to the service valve or ball valve which is located below the outdoor unit. 4. After completing the piping connection, be sure to check if there is gas leakage in indoor and outdoor connection. After completing the piping connection, execute vacuum drying for the connecting piping and the indoor unit. The vacuum drying must be carried out using the ser- vice ports of both the liquid and gas side valves. Use two wrenches and tighten with regular torque. Outdoor unit Liquid side Blazing connection Flare connection Gas side Indoor unit Union Flare nut fastening torque Ø6.35mm 1.8kg.m Ø9.52mm 4.0kg.m Ø12.7mm 5.5kg.m Ø15.88mm 6.6kg.m Ø19.05mm 6.6kg.m Capacity(kW) Liquid side piping(mm) Gas side piping(mm) 5.3, 7.0 Ø6.35 Ø9.53 8.8 Ø9.53 Ø9.53 10.5 Ø9.53 Ø9.53 12.3 Ø9.53 Ø19.05 14.1 Ø9.53 Ø19.05 17.6 Ø12.7 Ø19.05 Piping Connection Vacuum drying CAUTION

ENGLISH Appendix 1. Use the heat insulation material for the refrigerant piping which has an excellent heat-resistance (over 120°C). 2. Precautions in high humidity circumstance: This air conditioner has been tested according to the "KS Standard Conditions with Mist" and confirmed that there is not any default. However, if it is operated for a long time in high humid atmosphere (dew point temperature: more than 23°C), water drops are liable to fall. In this case, add heat insulation material according to the following procedure: • Heat insulation material to be prepared... Adiabatic glass wool with thickness 10 to 20mm. • Stick glass wool on all air conditioners that are located in ceiling atmosphere. • In addition to the normal heat insulation (thickness: more than 8mm) for refrigerant piping (gas piping: thick piping) and drain piping, add further 10mm to 30mm thickness material. Indoor unit Thermal insulator (accessory) Fastening band (accessory) Refrigerant piping HEAT INSULATION

1. Drain pipe gradient and support 1) - The drain pipe must be fitted at a gradient of at least 1/100. - The drain pipe should be as short as possible and free from airlocks. 2) Suspension bolts should be used to support long stretches of drain pipe in order to ensure that a gradient of 1/100 is maintained.(PVC pipe should not be bent) Spacing of supports for horizontal piping 3) The length of pipe laid horizontally should be kept a minimum. 2. Drain trap Fit any indoor unit whose drain pipe connection is subjected to negative pressure, with a drain trap. 1) Rig the drain trap as shown in the drawing below 2) Provide one trap per unit. A single trap for converging units will prove ineffective. 3) Rig the trap to allow for future changing. Class Nominal diameter Spacing Rigid PVC pipe 25~40mm 1.0m or less Indoor unit Gradient of at least 1 / 100 (1cm/ 1m) Indoor unit H: 50mm or more H H Indoor unit Plug Indoor unit Plug

ENGLISH Appendix 3. Grouped drain piping 1) It is standard work practice to make connections to the main pipe from above. The pipe down from the combination should be as large as possible. 2) The pipe work should be kept as short as possible and the number of indoor units per group kept to a min- imum. 4. Use of an auxiliary drain hose(flexible) 1) If the drain pan made of polystyrene foam is used then an auxiliary drain hose(flexible) is also essential A flexible drain hose permits the drain socket and drain pipe to be connected without difficulty and pre- vents any undue strain being placed on the drain pan. I Important points - The drain pipe should be at least equal in size to that of the indoor unit. - The drain pipe is thermally insulated to prevent the formation of condensation inside the pipe. - The drain up mechanism should be fitted before the indoor unit is installed and when the electricity has been connected some water should be added to the drain pan and the drain pump check to see that it is functioning correctly. - All connections should be secure.(Special care is needed with PVC pipe) - Insulate auxiliary drain hose by thermal insulation band. Face the vent pipe mouth downward to keep foreign matter from penetrating he system Vent pipe Face piping downward Thermal insulation(drain pipe area) Auxiliary drain hose Thermal insulation(band area) Metal clamp Drain pan Indoor unit

System Check List Checked date Delivered date Check ordered date < Additional refrigerant charge > Remarks Installed by Checked by Outdoor unit Customer System name kg Location Model Serial No. No. Optional equipment

ENGLISH System Check List Indoor unit A B C D E F G H I J K L M N O P No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. No. Location Model Serial No. Field setting Optional equipment Centralized control group No.

Prior to power on (Remarks) Outdoor unit Indoor unit INSPECTION ITEM Breaker capacity Visual inspection Specified capacity Air filter Visual inspection Refrigerant piping system Gas leak detector No leakage Heat exchanger Visual inspection No clogging or damage Heat exchanger Visual inspection No clogging or damage No clogging or damage Installation condition Airtight Test with Nitrogen gas Evacuation Under 2.94 Mpa for 24 hours or more Under the pressure of 5 tor. for 3 hours or more YES NO YES NO Visual inspection Short-circuit, etc. Installation condition Visual inspection Short-circuit, etc. Refrigerant piping system Gas leak detector No leakage YES NO Good Bad Terminal connection Screwdriver, etc. No loosening Good No. 1 Bad Good Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Bad Fan motor insulation 500V mega tester Over 1MΩ Fan motor insulation 500V mega tester Over 1MΩ Aux. heater insulation 500V mega tester Over 1MΩ Compressor insulation 500V mega tester Over 1MΩ MΩ MΩ No. 2 MΩ A INSPECTION METHOD Judge- ment STANDARD ACTUAL MEASUREMENT Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B

ENGLISH System Check List Prior to power on Outdoor unit INSPECTION ITEM INSPECTION METHOD Judge- ment STANDARD ACTUAL MEASUREMENT (Remarks) Main power source voltage ±10% of rated voltage Power source voltage ±10% of rated voltage V Tester Operation circuit voltage ±10% of rated voltage V A °C °C Tester Fan rotation direction Positive direction Good Bad Visual inspection Inter air temperature Temp. difference At cooling: 9-11°C At heating: 2-3.5°C Temp. difference At cooling: 9-13°C At heating: 15-20°C Thermometer Outlet air temperature Thermometer Compressor suction pressure Pressure gauge INVERTER kg/cm2 kg/cm2 Standard Compressor dicharge pressure Pressure gauge INVERTER kg/cm2 kg/cm2 Standard Compressor operating current Clamp meter Compressor frequency LED display Suction pipe temperature Thermometer 3-15°C No. °C No. °C Discharge pipe temperature Thermometer 85-105°C No. Crankcase heater Touch by hand. Tester Inlet air temperature Thermometer Outlet air temperature Thermometer Fan rotation direction Visual inspection Should be heated. Right direction Fan noise and vibration Listen and touch – – Fan operating current Clamp meter No. 1 Good Bad No. 1 Good Bad °C No. °C INVERTER INV Hz A A Standard Fan noise and vibration None Good Bad Listen and touch Fan operating current Clamp meter Indoor unit Airtight Test with Nitrogen gas Evacuation Under 2.94 Mpa for 24 hours ro more Under the pressure of 5 tor. for 3 hours or more YES NO YES NO Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B Room A G/B Room B G/B Room C G/B Room D G/B Room E G/B Room F G/B Room G G/B Room H G/B Room I G/B Room J G/B Room K G/B Room L G/B Room M G/B Room N G/B Room O G/B Room P G/B