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ENGLISH INSTALLATION MANUAL AIR CONDITIONER 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. Original instruction www.lg.com P/NO : MFL67221414 2 ENGLISH TIPS FOR SAVING ENERGY Here are some tips that will help you minimize the power consumption when you use the air conditioner. You can use your air conditioner more efficiently by referring to the instructions below: • Do not cool excessively indoors. This may be harmful for your health and may consume more electricity. • Block sunlight with blinds or curtains while you are operating the air conditioner. • Keep doors or windows closed tightly while you are operating the air conditioner. • Adjust the direction of the air flow vertically or horizontally to circulate indoor air. • Speed up the fan to cool or warm indoor air quickly, in a short period of time. • Open windows regularly for ventilation as the indoor air quality may deteriorate if the air conditioner is used for many hours. • Clean the air filter once every 2 weeks. Dust and impurities collected in the air filter may block the air flow or weaken the cooling / dehumidifying functions. For your records Staple your receipt to this page in case you need it to prove the date of purchase or for warranty purposes. Write the model number and the serial number here: Model number : Serial number : You can find them on a label on the side of each unit. Dealer’s name : Date of purchase : Installation • 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 performed improperly, electric shock or fire may result. • Ask the dealer or an authorized technician to install the air conditioner. - Improper installation by the user may result in water leakage, electric shock, or fire. • Always ground the product. - There is risk of fire or electric shock. • Always intstall a dedicated circuit and breaker. - Improper wiring or installation may cause fire or electric shock. • For re-installation of the installed product, always contact a dealer or an Authorized Service Center. - There is risk of fire, electric shock, explosion, or injury. • Do not install, remove, or re-install the unit by yourself (customer). - There is risk of fire, electric shock, explosion, or injury. • Do not store or use flammable gas or combustibles near the air conditioner. - There is risk of fire or failure of product. • Use the correctly rated breaker or fuse. - There is risk of fire or electric shock. • Prepare for strong wind or earthquake and install the unit at the specified place. - Improper installation may cause the unit to topple and result in injury. • Do not install the product on a defective installation stand. - It may cause injury, accident, or damage to the product. • Use a vacuum pump or Inert(nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or explosion. - There is the risk of death, injury, fire or explosion. • When installing and moving the air conditioner to another site, do not charge it with a different refrigerant from the refrigerant 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. • Do not reconstruct to 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 LGE are used, fire or explosion may result. • Ventilate before operating air conditioner when gas leaked out. - It may cause explosion, fire, and burn. IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS BEFORE USING THE APPLIANCE. Always comply with the following precautions to avoid dangerous situations and ensure peak performance of your product • Securely install the cover of control box and the panel. - If the cover and panel are not installed securely, dust or water may enter the outdoor unit and fire or electric shock may result. • 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, harzards due to lack of oxygen in the room could result. Operation ! WARNING It can result in serious injury or death when the directions are ignored ! CAUTION It can result in minor injury or product damage when the directions are ignored ! WARNING • Installation or repairs made by unqualified persons can result in hazards to you and others. • The information contained in the manual is intended for use by a qualified service technician familiar with safety procedures and equipped with the proper tools and test instruments. • Failure to carefully read and follow all instructions in this manual can result in equipment malfunction, property damage, personal injury and/or death. • Do not damage or use an unspecified power cord. - There is risk of fire, electric shock, explosion, or injury. • Use a dedicated outlet for this appliance. - There is risk of fire or electrical shock. • Be cautious that water could not enter the product. - There is risk of fire, electric shock, or product damage. • Do not touch the power switch with wet hands. - There is risk of fire, electric shock, explosion, or injury. • When the product is soaked (flooded or submerged), contact an Authorized Service Center. - There is risk of fire or electric shock. • Be cautious not to touch the sharp edges when installing. - It may cause injury. • Take care to ensure that nobody could step on or fall onto the outdoor unit. - This could result in personal injury and product damage. • Do not open the inlet grille of the product during operation. (Do not touch the electrostatic filter, if the unit is so equipped.) - There is risk of physical injury, electric shock, or product failure. 3 Installation • Always check for gas (refrigerant) leakage after installation or repair of product. - Low refrigerant levels may cause failure of product. • Do not install the product where the noise or hot air from the outdoor unit could damage the neighborhoods. - It may cause a problem for your neighbors. • Keep level even when installing the product. - To avoid vibration or water leakage. • Do not install the unit where combustible gas may leak. - If the gas leaks and accumulates around the unit, an explosion may result. • Use power cables of sufficient current carrying capacity and rating. - Cables that are too small may leak, generate heat, and cause a fire. • Do not use the product for special purposes, such as preserving foods, works of art, etc. It is a consumer air conditioner, not a precision refrigeration system. - There is risk of damage or loss of property. • Keep the unit away from children. The heat exchanger is very sharp. - It can cause the injury, such as cutting the finger. Also the damaged fin may result in degradation of capacity. • When installting the unit in a hospital, communication 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. • Do not install the product where it is exposed to sea wind (salt spray) directly. - It may cause corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient operation. TABLE OF CONTENTS 2 TIPS FOR SAVING ENERGY 2 IMPORTANT SAFETY INSTRUCTIONS 4 INSTALLATION PROCESS 4 OUTDOOR UNITS INFORMATION 6 ALTERNATIVE REFRIGERANT R410A 6 SELECT THE BEST LOCATION 7 INSTALLATION SPACE 7 Individual Installation 7 8 LIFTING METHOD 8 8 8 10 The location of the Anchor bolts Foundation for Installation Preparation of Piping Plumbing materials and storage methods INSTALLATION 10 REFRIGERANT PIPING INSTALLATION 10 Precautions on Pipe connection / Valve operation 11 PIPE CONNECTIONS BETWEEN INDOOR AND Operation • Do not use the air conditioner in special environments. - Oil, steam, sulfuric smoke, etc. can significantly reduce the performance of the air conditioner or damage its parts. • Do not block the inlet or outlet. - It may cause failure of appliance or accident. • Make the connections securely so that the outside force of the cable may not be applied to the terminals. - Inadequate connection and fastening may generate heat and cause a fire. • Be sure the installation area does not deteriorate with age. - If the base collapses, the air conditioner could fall with it, causing property damage, product failure, or personal injury. • Install and insulate the drain hose to ensure that water is drained away properly based on the installation manual. - A bad connection may cause water leakage. • 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. Doing so may cut your fingers. - When transporting the outdoor unit, suspending 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 may not play with them. If children play with a plastic bag which was not torn apart, they face the risk of suffocation. • Turn on the power at least 6 hours before starting operation. - Starting operation immediately after turning on the main power switch can result in severe damage to internal parts. Keep the power switch turned on during the operational season. • Do not touch any of the refrigerant piping during and after operation. - It can cause a burn or frostbite. • Do not operate the air conditioner with the panels or guards removed. - Rotating, hot, or high-voltage parts can cause injuries. • Do not directly turn off the main power switch after stopping operation. - Wait at least 5 minutes before turning off the main power switch. Otherwise it may result in water leakage or other problems. • Auto-addressing should be done in condition of connecting the power of all indoor and outdoour units. Auto-addressing should also be done in case of changing the indoor unit PCB. • Use a firm stool or ladder when cleaning or maintaining the air conditioner. - Be careful and avoid personal injury. • Do not insert hands or other objects through the air inlet or outlet while the air conditioner is plugged in. - There are sharp and moving parts that could cause personal injury. OUTDOOR UNIT 11 11 12 12 15 16 16 17 18 19 Preparation Work Pipe Drawing Out during Single / Series connection Refrigerant piping system Pipe Connection Method between outdoor unit/indoor unit Refrigerant charging Distribution Method Branch pipe Fitting Leak Test and Vacuum drying Vacuum Mode Thermal insulation of refrigerant piping 19 ELECTRICAL WIRING 19 20 21 21 22 22 24 24 25 25 25 26 26 26 26 27 27 27 28 Caution Control box and connecting position of wiring Communication and Power Cables Wiring of main power supply and equipment capacity Point for attention regarding quality of the public electric power supply Field Wiring Checking the setting of outdoor units Automatic Addressing Group Number setting Cool & Heat selector Static pressure compensation mode Night Low Noise Function Overall defrost mode Setting the ODU address Snow removal & rapid defrost IDU capacity adjusting Target pressure adjusting Comfort Operation Self-Diagnosis Function 30 CAUTION FOR REFRIGERANT LEAK 30 30 Introduction Checking procedure of limiting concentration 31 INSTALLATION GUIDE AT THE SEASIDE ENGLISH ! CAUTION 4 ENGLISH INSTALLATION PROCESS Determination of division work Preparation of contract drawings Sleeve and insert work Indicate clearly who will be responsible for switch setting. Make connection clearly between outdoor, indoor, remote controller and option. Take account of gradient of drain piping Outdoor unit foundation work The foundation must be level even Installation of indoor unit Check model name to make sure the fitting is made correctly Installation of outdoor unit Avoid short circuits and ensure sufficient space is allowed for service Refrigerant piping work Special attention to dryness, cleanness and tightness Drain pipe work Adjust to downward gradient Duct work Make sure airflow is sufficient Heat insulation work Electrical work (connection circuits and drive circuits) Airtight test Vacuum drying Make sure no gaps are left where the insulating materials are joined Multiple core cable must not be used. (suitable cable should be selected) In the final check for 24hours at 3.8 MPa(38.7 kgf/cm2) there must be no drop in pressure. The vacuum pump used must have a capacity of reaching at least 5 torr, more than 1 hour Additional charge of refrigerant Recharge correctly as calculated in this manual. and record the amount of added refrigerant Fit facing panels Make sure there are no gaps left between the facing materials used on the ceiling Automatic addressing of indoor unit Test run adjustment Transfer to customer with explanation Refer to automatic addressing flowchart Preheat the crank case with the electrical heater for more than 6 hours. Run each indoor unit in turn to make sure the pipe work has been fitted correctly Power Supply : 3Ø, 380V, 60Hz or 3Ø, 380 - 415V, 50Hz Model Name : ARUN***LTE4 1 Outdoor Unit 8 10 12 ARUN080LTE4 ARUN100LTE4 ARUN120LTE4 Combination Unit Model ARUN080LTE4 ARUN100LTE4 ARUN120LTE4 Independent Unit kg 7.5 7.5 7.5 Refrigerant Precharged Amount lbs 16.5 16.5 16.5 Number of maxmum connectable indoor units 13(20) 16(25) 20(30) kg 202 x 1 208 x 1 208 x 1 Net Weight lbs 445 x 1 458 x 1 458 x 1 mm (920×1,680×760) × 1 (920×1,680×760) × 1 (920×1,680×760) × 1 Dimensions (WxHxD) inch (36-7/32 × 66-5/32 × 29-29/32) x 1 (36-7/32 × 66-5/32 × 29-29/32) x 1 (36-7/32 × 66-5/32 × 29-29/32) x 1 mm(inch) Ø 9.52(3/8) Ø 9.52(3/8) Ø 12.7(1/2) Piping Conections mm(inch) Ø 19.05(3/4) Ø 22.2(7/8) Ø 28.58(1-1/8) Unit System(HP) Unit System(HP) 1 Outdoor Unit 16 18 20 ARUN160LTE4 ARUN180LTE4 ARUN200LTE4 ARUN160LTE4 ARUN180LTE4 ARUN200LTE4 10.5 10.5 10.5 23.1 23.1 23.1 26(40) 29(45) 32(50) 245 × 1 280 × 1 280 × 1 540 × 1 617 × 1 617 × 1 (1,240×1,680×760) × 1 (1,240×1,680×760) × 1 (1,240×1,680×760) × 1 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × 29-29/32) x 1 × 29-29/32) x 1 × 29-29/32) x 1 Ø 12.7(1/2) Ø 15.88(5/8) Ø 15.88(5/8) Ø 28.58(1-1/8) Ø 28.58(1-1/8) Ø 28.58(1-1/8) Unit System(HP) 2 Outdoor Unit 24 26 28 ARUN240LTE4 ARUN260LTE4 ARUN280LTE4 ARUN120LTE4 ARUN140LTE4 ARUN160LTE4 ARUN120LTE4 ARUN120LTE4 ARUN120LTE4 7.5 x 2 10.5 + 7.5 10.5 + 7.5 16.5 x 2 23.1 + 16.5 23.1 + 16.5 39(48) 42(52) 45(56) 208 x 2 (245 × 1) + (208 × 1) (245 × 1) + (208 × 1) 458 x 2 (540 × 1) + (458 × 1) 540 × 1) + (458 × 1) (1,240x1,680x760) x 1 (1,240×1,680×760) × 1 mm (920×1,680×760) x 2 (920×1,680×760) x 2 + (920x1,680x760) x 1 + (920×1,680×760) × 1 (48-13/16 × 66 -5/32 × 29 - (48-13/16 × 66-5/32 × 29(36-7/32 × 66-5/32 × (36-7/32 × 66-5/32 × inch 29/32) x 1 + (36-7/32 × 66 - 29/32) x 1 + (36-7/32 × 6629-29/32) x 2 29-29/32) x 2 5/32 × 29-29/32) x 1 5/32 × 29-29/32) x 1 mm(inch) Ø 15.88(5/8) Ø 15.88(5/8) Ø 19.05(3/4) Ø 19.05(3/4) mm(inch) Ø 28.58(1-1/8) Ø 34.9(1-3/8) Ø 34.9(1-3/8) Ø 34.9(1-3/8) 14 ARUN140LTE4 Combination Unit Model ARUN140LTE4 Independent Unit kg 10.5 Refrigerant Precharged Amount lbs 23.1 Number of maxmum connectable indoor units 23(35) kg 245 × 1 Net Weight lbs 540 × 1 mm (1,240x1,680x760) x 1 Dimensions (48-13/16 × 66-5/32 (WxHxD) inch × 29-29/32) x 1 mm(inch) Ø 12.7(1/2) Piping Conections mm(inch) Ø 28.58(1-1/8) 22 ARUN220LTE4 Combination Unit Model ARUN120LTE4 Independent Unit ARUN100LTE4 kg 7.5 x 2 Refrigerant Precharged Amount lbs 16.5 x 2 Number of maxmum connectable indoor units 35(44) kg 208 x 2 Net Weight lbs 458 x 2 Dimensions (WxHxD) Explain the use of the system as clearly as possible to your customer and make sure all relevant documentation is in order Piping Conections ! CAUTION • 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. • The thickness of the piping should comply with the relevant local and national regulations for the designed pressure 3.8MPa. • Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state.(If the refrigerant is charged in its gaseous state, its composition changes and the system will not work properly.) OUTDOOR UNITS INFORMATION ! CAUTION Connection Ratio 200% 160% 130% Notes : * We can guarantee the operation only within 130% Combination. If you want to connect more than 130% combination, please contact us and discuss the requirement like below. • If the operation of indoor unit is more than 130%, the airflow is operated as low in the all indoor units. • The number of ( ) means the number of Max. connectable indoor units, when the connected capacity of indoor units is in the table above. 2 Outdoor Unit 38 40 ARUN380LTE4 ARUN400LTE4 ARUN200LTE4 ARUN200LTE4 ARUN180LTE4 ARUN200LTE4 36 ARUN360LTE4 ARUN200LTE4 ARUN160LTE4 10.5 × 2 23.1 × 2 58(64) (280 × 1) + (245 × 1) (617 × 1) + (540 × 1) (1,240×1,680×760) x 2 (48-13/16 × 66-5/32 × 29-29/32) x 2 Ø 19.05(3/4) Ø 41.3(1-5/8) 3 Outdoor Unit 42 44 ARUN420LTE4 ARUN440LTE4 Combination Unit ARUN180LTE4 ARUN200LTE4 Model ARUN140LTE4 ARUN140LTE4 Independent Unit ARUN100LTE4 ARUN100LTE4 kg 10.5 x 2 10.5 x 2 (10.5 × 2) + 7.5 (10.5 × 2) + 7.5 Refrigerant Precharged Amount lbs 23.1 x 2 23.1 x 2 (23.1 × 2) + 16.5 (23.1 × 2) + 16.5 Number of maxmum connectable indoor units 61(64) 64 64 64 kg 280 x 2 280 x 2 (280 × 1) + (245 x 1) + (208 × 1) (280 × 1) + (245 x 1) + (208 × 1) Net Weight lbs 617 x 2 617 x 2 (617 × 1) + (540 x 1) + (458 × 1) (617 × 1) + (540 x 1) + (458 × 1) (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 mm (1,240×1,680×760) x 2 (1,240×1,680×760) x 2 + (920×1,680×760) × 1 + (920×1,680×760) × 1 Dimensions (48-13/16 × 66(48-13/16 × 66(48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29(WxHxD) inch 5/32 × 29-29/32) 5/32 × 29-29/32) 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 66x2 x2 66-5/32 × 29-29/32) x 1 5/32 × 29-29/32) x 1 mm(inch) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Piping Conections mm(inch) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Unit System(HP) Combination Ratio(50~200%) Outdoor Number Single outdoor units Double outdoor units Triple outdoor units 2 Outdoor Unit 30 32 34 ARUN300LTE4 ARUN320LTE4 ARUN340LTE4 Combination Unit ARUN180LTE4 ARUN200LTE4 ARUN200LTE4 Model Independent Unit ARUN120LTE4 ARUN120LTE4 ARUN140LTE4 kg 10.5 + 7.5 10.5 + 7.5 10.5 × 2 Refrigerant Precharged Amount lbs 23.1 + 16.5 23.1 + 16.5 23.1 × 2 Number of maxmum connectable indoor units 49(60) 52(64) 55(64) kg (280 × 1) + (208 × 1) (280 × 1) + (208 × 1) (280 × 1) + (245 × 1) Net Weight lbs (617 × 1) + (458 × 1) (617 × 1) + (458 × 1) (617 × 1) + (540 × 1) (1,240×1,680×760) × 1 (1,240×1,680×760) × 1 mm (1,240×1,680×760) x 2 + (920×1,680×760) × 1 + (920×1,680×760) × 1 Dimensions (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29(WxHxD) (48-13/16 × 66-5/32 inch 29/32) x 1 + (36-7/32 × 66- 29/32) x 1 + (36-7/32 × 66× 29-29/32) x 2 5/32 × 29-29/32) x 1 5/32 × 29-29/32) x 1 mm(inch) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Piping Conections mm(inch) Ø 34.9(1-3/8) Ø 34.9(1-3/8) Ø 34.9(1-3/8) Unit System(HP) 5 3 Outdoor Unit 54 56 58 60 ARUN540LTE4 ARUN560LTE4 ARUN580LTE4 ARUN600LTE4 Combination Unit ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 Model ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 Independent Unit ARUN140LTE4 ARUN160LTE4 ARUN180LTE4 ARUN200LTE4 kg 10.5 × 3 10.5 × 3 10.5 x 3 10.5 x 3 Refrigerant Precharged Amount lbs 23.1 x 3 23.1 x 3 23.1 x 3 23.1 x 3 Number of maxmum connectable indoor units 64 64 64 64 kg (280 × 2) + (245 x 1) (280 × 2) + (245 x 1) 280 × 3 280 × 3 Net Weight lbs (617 × 2) + (540 × 1) (617 × 2) + (540 × 1) 617 × 3 617 × 3 mm (1,240x1,680x760) x 3 (1,240×1,680×760) × 3 (1,240×1,680×760) × 3 (1,240×1,680×760) × 3 Dimensions (48-13/16 × 66-5/32 (48-13/16 × 66(48-13/16 × 66(48-13/16 × 66(WxHxD) inch × 29-29/32) x 3 5/32 × 29-29/32) x 3 5/32 × 29-29/32) x 3 5/32 × 29-29/32) x 3 mm(inch) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Piping Conections mm(inch) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Unit System(HP) 4 Outdoor Unit 62 64 66 68 ARUN620LTE4 ARUN640LTE4 ARUN660LTE4 ARUN680LTE4 Combination Unit ARUN180LTE4 ARUN180LTE4 ARUN180LTE4 ARUN200LTE4 ARUN160LTE4 ARUN180LTE4 ARUN180LTE4 ARUN200LTE4 Model Independent Unit ARUN140LTE4 ARUN140LTE4 ARUN160LTE4 ARUN140LTE4 ARUN140LTE4 ARUN140LTE4 ARUN140LTE4 ARUN140LTE4 kg 10.5 x 4 10.5 x 4 10.5 x 4 10.5 x 4 Refrigerant Precharged Amount lbs 23.1 x 4 23.1 x 4 23.1 x 4 23.1 x 4 Number of maxmum connectable indoor units 64 64 64 64 kg (280 × 1) + (245 x 3) (280 × 2) + (245 x 2) (280 × 2) + (245 x 2) (280 × 2) + (245 x 2) Net Weight lbs (617 × 1) + (540 × 3) (617 × 2) + (540 × 2) (617 × 2) + (540 × 2) (617 × 2) + (540 × 2) mm (1,240x1.680x760) x 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 Dimensions (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (WxHxD) inch × 29-29/32) x 4 29-29/32) x 4 29-29/32) x 4 29-29/32) x 4 mm(inch) Ø 22.2(7/8) Ø 22.2(7/8) Ø 22.2(7/8) Ø 22.2(7/8) Piping Conections mm(inch) Ø 44.5(1-3/4) Ø 44.5(1-3/4) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Unit System(HP) 4 Outdoor Unit 70 72 74 76 ARUN700LTE4 ARUN720LTE4 ARUN740LTE4 ARUN760LTE4 Combination Unit ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 Model Independent Unit ARUN160LTE4 ARUN180LTE4 ARUN180LTE4 ARUN180LTE4 ARUN140LTE4 ARUN140LTE4 ARUN160LTE4 ARUN180LTE4 kg 10.5 x 4 10.5 x 4 10.5 x 4 10.5 x 4 Refrigerant Precharged Amount lbs 23.1 x 4 23.1 x 4 23.1 x 4 23.1 x 4 Number of maxmum connectable indoor units 64 64 64 64 kg (280 × 2) + (245 x 2) (280 × 3) + (245 x 1) (280 × 3) + (245 x 1) 280 × 4 Net Weight lbs (617 × 2) + (540 × 2) (617 × 3) + (540 × 1) (617 × 3) + (540 × 1) 617 × 4 mm (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 Dimensions (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (WxHxD) inch × 29-29/32) x 4 × 29-29/32) x 4 × 29-29/32) x 4 × 29-29/32) x 4 mm(inch) Ø 22.2(7/8) Ø 22.2(7/8) Ø 22.2(7/8) Ø 22.2(7/8) Piping Conections mm(inch) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Unit System(HP) 4 Outdoor Unit 78 80 ARUN780LTE4 ARUN800LTE4 Combination Unit ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 Model Independent Unit ARUN200LTE4 ARUN200LTE4 ARUN180LTE4 ARUN200LTE4 kg 10.5 x 4 10.5 x 4 Refrigerant Precharged Amount lbs 23.1 x 4 23.1 x 4 Number of maxmum connectable indoor units 64 64 kg 280 × 4 280 × 4 Net Weight lbs 617 x 4 617 x 4 mm (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 Dimensions (WxHxD) inch (48-13/16 × 66-5/32 × 29-29/32) x 4 (48-13/16 × 66-5/32 × 29-29/32) x 4 mm(inch) Ø 22.2(7/8) Ø 22.2(7/8) Piping Conections mm(inch) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Unit System(HP) Model Name : ARUN***LTS4 1 Outdoor Unit 8 10 12 ARUN080LTS4 ARUN100LTS4 ARUN120LTS4 Combination Unit Model ARUN080LTS4 ARUN100LTS4 ARUN120LTS4 Independent Unit Refrigerant kg 6.5 6.5 6.5 lbs 14.3 14.3 14.3 Precharged Amount Number of maxmum connectable indoor units 13(20) 16(25) 20(30) kg 195 × 1 201 × 1 201 × 1 Net Weight lbs 430 × 1 443 × 1 443 × 1 mm (920×1,680×760) × 1 (920×1,680×760) × 1 (920×1,680×760) × 1 Dimensions (WxHxD) inch (36-7/32 × 66-5/32 × 29-29/32) x 1 (36-7/32 × 66-5/32 × 29-29/32) x 1 (36-7/32 × 66-5/32 × 29-29/32) x 1 mm(inch) Ø 9.52(3/8) Ø 9.52(3/8) Ø 12.7(1/2) Piping Conections mm(inch) Ø 19.05(3/4) Ø 22.2(7/8) Ø 28.58(1-1/8) Unit System(HP) Unit System(HP) 1 Outdoor Unit 16 18 20 ARUN160LTS4 ARUN180LTS4 ARUN200LTS4 ARUN160LTS4 ARUN180LTS4 ARUN200LTS4 8.5 8.5 10 18.7 18.7 22 26(40) 29(45) 32(50) 235 × 1 270 × 1 280 × 1 518 × 1 595 × 1 617 × 1 (1,240×1,680×760) × 1 (1,240×1,680×760) × 1 (1,240×1,680×760) × 1 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × 29-29/32) x 1 × 29-29/32) x 1 × 29-29/32) x 1 Ø 12.7(1/2) Ø 15.88(5/8) Ø 15.88(5/8) Ø 28.58(1-1/8) Ø 28.58(1-1/8) Ø 28.58(1-1/8) Unit System(HP) 2 Outdoor Unit 24 26 28 ARUN240LTS4 ARUN260LTS4 ARUN280LTS4 ARUN120LTS4 ARUN140LTS4 ARUN160LTS4 ARUN120LTS4 ARUN120LTS4 ARUN120LTS4 6.5 × 2 8.5 + 6.5 8.5 + 6.5 14.3 × 2 18.7 + 14.3 18.7 + 14.3 39(48) 42(52) 45(56) 201 × 2 (235 × 1) + (201 × 1) (235 × 1) + (201 × 1) 443 × 2 (518 × 1) + (443 × 1) (518 × 1) + (443 × 1) (1,240x1,680x760) x 1 + (1,240×1,680×760) × 1 + mm (920×1,680×760) x 2 (920×1,680×760) x 2 (920x1,680x760) x 1 (920×1,680×760) × 1 (48-13/16 × 66 -5/32 × 29 - (48-13/16 × 66-5/32 × 29(36-7/32 × 66-5/32 × (36-7/32 × 66-5/32 × inch 29/32) x 1 + (36-7/32 × 66 - 29/32) x 1 + (36-7/32 × 6629-29/32) x 2 29-29/32) x 2 5/32 × 29-29/32) x 1 5/32 × 29-29/32) x 1 mm(inch) Ø 15.88(5/8) Ø 15.88(5/8) Ø 19.05(3/4) Ø 19.05(3/4) mm(inch) Ø 28.58(1-1/8) Ø 34.9(1-3/8) Ø 34.9(1-3/8) Ø 34.9(1-3/8) 14 ARUN140LTS4 Combination Unit Model ARUN140LTS4 Independent Unit kg 8.5 Refrigerant Precharged Amount lbs 18.7 Number of maxmum connectable indoor units 23(35) kg 235 × 1 Net Weight lbs 518 × 1 mm (1,240x1,680x760) x 1 Dimensions (48-13/16 × 66-5/32 (WxHxD) inch × 29-29/32) x 1 mm(inch) Ø 12.7(1/2) Piping Conections mm(inch) Ø 28.58(1-1/8) 22 ARUN220LTS4 Combination Unit ARUN120LTS4 Model Independent Unit ARUN100LTS4 kg 6.5 × 2 Refrigerant Precharged Amount lbs 14.3 × 2 Number of maxmum connectable indoor units 35(44) kg 201 × 2 Net Weight lbs 443 × 2 Dimensions (WxHxD) Piping Conections Unit System(HP) 30 ARUN300LTS4 Combination Unit ARUN180LTS4 Model Independent Unit ARUN120LTS4 kg 8.5 + 6.5 Refrigerant Precharged Amount lbs 18.7 + 14.3 Number of maxmum connectable indoor units 49(60) kg (270 × 1) + (201 × 1) Net Weight lbs (595× 1) + (443 × 1) mm (1,240x1,680x760) x 2 Dimensions (48-13/16 × 66-5/32 (WxHxD) inch × 29-29/32) x 2 Piping Conections mm(inch) mm(inch) Ø 19.05(3/4) Ø 34.9(1-3/8) 2 Outdoor Unit 32 34 36 ARUN320LTS4 ARUN340LTS4 ARUN360LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN120LTS4 ARUN140LTS4 ARUN160LTS4 10 + 6.5 10 + 8.5 10 + 8.5 22 + 14.3 22 + 18.7 22 + 18.7 52(64) 55(64) 58(64) (280 × 1) + (201 × 1) (280 × 1) + (235 × 1) (280 × 1) + (235 × 1) (617 × 1) + (443 × 1) (617 × 1) + (518 × 1) (617 × 1) + (518 × 1) (1,240×1,680×760) x 2 (1,240×1,680×760) x 2 (1,240×1,680×760) x 2 (48-13/16 × 66-5/32 × 29-29/32) x 2 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × × 29-29/32) x 2 29-29/32) x 2 Ø 19.05(3/4) Ø 34.9(1-3/8) Ø 19.05(3/4) Ø 34.9(1-3/8) 3 Outdoor Unit 42 44 ARUN420LTS4 ARUN440LTS4 Combination Unit ARUN180LTS4 ARUN200LTS4 Model ARUN140LTS4 ARUN140LTS4 Independent Unit ARUN100LTS4 ARUN100LTS4 kg 10 + 8.5 10 × 2 (8.5 × 2) + 6.5 10 + 8.5 + 6.5 Refrigerant Precharged Amount lbs 22 + 18.7 22 × 2 (18.7 × 2) + 14.3 22 + 18.7 + 14.3 Number of maxmum connectable indoor units 61(64) 64 64 64 (270 × 1) + (235 × 1) (280 × 1) + (235 × 1) kg (280 × 1) + (270 x 1) 280 × 2 + (201 × 1) + (201 × 1) Net Weight (595 × 1) + (518 × 1) + (617 × 1) + (518 × 1) + lbs (617 × 1) + (595 × 1) 617 × 2 (443 × 1) (443 × 1) (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 mm (1,240×1,680×760) x 2 (1,240×1,680×760) x 2 + (920×1,680×760) × 1 + (920×1,680×760) × 1 Dimensions (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (WxHxD) (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × 29-29/32) x 2 + (36- 29-29/32) x 2 + (36inch 29-29/32) x 2 29-29/32) x 2 7/32 × 66-5/32 × 29- 7/32 × 66-5/32 × 2929/32) x 1 29/32) x 1 mm(inch) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Piping Conections mm(inch) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Unit System(HP) 2 Outdoor Unit 38 40 ARUN380LTS4 ARUN400LTS4 ARUN200LTS4 ARUN200LTS4 ARUN180LTS4 ARUN200LTS4 Ø 19.05(3/4) Ø 41.3(1-5/8) ENGLISH 3 Outdoor Unit 46 48 50 52 ARUN460LTE4 ARUN480LTE4 ARUN500LTE4 ARUN520LTE4 Combination Unit ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 ARUN200LTE4 Model ARUN160LTE4 ARUN180LTE4 ARUN200LTE4 ARUN200LTE4 Independent Unit ARUN100LTE4 ARUN100LTE4 ARUN100LTE4 ARUN120LTE4 kg (10.5 × 2) + 7.5 (10.5 × 2) + 7.5 (10.5 × 2) + 7.5 (10.5 × 2) + 7.5 Refrigerant Precharged Amount lbs (23.1 × 2) + 16.5 (23.1 × 2) + 16.5 (23.1 × 2) + 16.5 (23.1 × 2) + 16.5 Number of maxmum connectable indoor units 64 64 64 64 kg (280 × 1) + (245 x 1) + (208 × 1) (280 x 2) +(208 × 1) (280 x 2) +(208 × 1) (280 x 2) +(208 × 1) Net Weight lbs (617× 1) + (540 x 1) + (458 × 1) (617 x 2) +(458 × 1) (617 x 2) +(458 × 1) (617 x 2) +(458 × 1) (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 mm + (920×1,680×760) × 1 + (920×1,680×760) × 1 + (920×1,680×760) × 1 + (920×1,680×760) × 1 Dimensions (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29(WxHxD) inch 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 mm(inch) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Piping Conections mm(inch) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Unit System(HP) 6 ENGLISH 3 Outdoor Unit 46 48 50 52 ARUN460LTS4 ARUN480LTS4 ARUN500LTS4 ARUN520LTS4 Combination Unit ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 Model ARUN160LTS4 ARUN180LTS4 ARUN200LTS4 ARUN200LTS4 Independent Unit ARUN100LTS4 ARUN100LTS4 ARUN100LTS4 ARUN120LTS4 kg 10 + 8.5 + 6.5 10 + 8.5 + 6.5 (10 × 2) + 6.5 (10 × 2) + 6.5 Refrigerant Precharged Amount lbs 22 + 18.7 + 14.3 22 + 18.7 + 14.3 (22 × 2) + 14.3 (22 × 2) + 14.3 Number of maxmum connectable indoor units 64 64 64 64 kg (280 × 1) + (235 × 1) + (201 × 1) (280 × 1) + (270 × 1) + (201 × 1) (280 × 2) + (201 × 1) (280 × 2) + (201 × 1) Net Weight lbs (617 × 1) + (518 × 1) + (443 × 1) (617 × 1) + (595 × 1) + (443 × 1) (617 × 2) + (443 × 1) (617 × 2) + (443 × 1) (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 (1,240×1,680×760) × 2 mm + (920×1,680×760) × 1 + (920×1,680×760) × 1 + (920×1,680×760) × 1 + (920×1,680×760) × 1 Dimensions (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29- (48-13/16 × 66-5/32 × 29(WxHxD) inch 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 29/32) x 2 + (36-7/32 × 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 66-5/32 × 29-29/32) x 1 mm(inch) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Piping Conections mm(inch) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Unit System(HP) 3 Outdoor Unit 54 56 58 60 ARUN540LTS4 ARUN560LTS4 ARUN580LTS4 ARUN600LTS4 Combination Unit ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 Model ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 Independent Unit ARUN140LTS4 ARUN160LTS4 ARUN180LTS4 ARUN200LTS4 kg (10 × 2) + 8.5 (10 × 2) + 8.5 (10 × 2) + 8.5 10 x 3 Refrigerant Precharged Amount lbs (22 × 2) + 18.7 (22 × 2) + 18.7 (22 × 2) + 18.7 22 x 3 Number of maxmum connectable indoor units 64 64 64 64 kg (280 × 2) + (235 × 1) (280 × 2) + (235 × 1) (280 × 2) + (270 × 1) 280 × 3 Net Weight lbs (617 × 2) + (518 × 1) (617 × 2) + (518 × 1) (617 × 2) + (595 × 1) 617 × 3 mm (1,240x1,680x760) x 3 (1,240×1,680×760) × 3 (1,240×1,680×760) × 3 (1,240×1,680×760) × 3 Dimensions (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (WxHxD) inch × 29-29/32) x 3 29-29/32) x 3 29-29/32) x 3 29-29/32) x 3 mm(inch) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Ø 19.05(3/4) Piping Conections mm(inch) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Ø 41.3(1-5/8) Unit System(HP) 4 Outdoor Unit 62 64 66 68 ARUN620LTS4 ARUN640LTS4 ARUN660LTS4 ARUN680LTS4 Combination Unit ARUN180LTS4 ARUN180LTS4 ARUN180LTS4 ARUN200LTS4 ARUN160LTS4 ARUN180LTS4 ARUN180LTS4 ARUN200LTS4 Model Independent Unit ARUN140LTS4 ARUN140LTS4 ARUN160LTS4 ARUN140LTS4 ARUN140LTS4 ARUN140LTS4 ARUN140LTS4 ARUN140LTS4 kg 8.5 x 4 8.5 x 4 8.5 x 4 (10 × 2) + (8.5 × 2) Refrigerant Precharged Amount lbs 18.7 x 4 18.7 x 4 18.7 x 4 (22 × 2) + (18.7 × 2) Number of maxmum connectable indoor units 64 64 64 64 kg (270 × 1) + (235 × 3) (270 × 2) + (235 × 2) (270 × 2) + (235 × 2) (280 × 2) + (235 × 2) Net Weight lbs (595 × 1) + (518 × 1) (595 × 2) + (518 × 2) (595 × 2) + (518 × 2) (617 × 2) + (518 × 2) mm (1,240x1,680x760) x 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 Dimensions (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (48-13/16 × 66-5/32 × (WxHxD) inch × 29-29/32) x 4 29-29/32) x 4 29-29/32) x 4 29-29/32) x 4 mm(inch) Ø 22.2(7/8) Ø 22.2(7/8) Ø 22.2(7/8) Ø 22.2(7/8) Piping Conections mm(inch) Ø 44.5(1-3/4) Ø 44.5(1-3/4) Ø 53.98(2-1/8) Ø 53.98(2-1/8) ALTERNATIVE REFRIGERANT R410A The refrigerant R410A has the property of higher operating pressure in comparison with R22. Therefore, all materials have the characteristics of higher resisting pressure than R22 ones and this characteristic should be also considered during the installation. R410A is an azeotrope of R32 and R125 mixed at 50:50, so the ozone depletion potential (ODP) of R410A is 0. ! CAUTION • The wall thickness of the piping should comply with the relevant local and national regulations for the designed pressure 3.8MPa • Since R410A is a mixed refrigerant, the required additional refrigerant must be charged in its liquid state. If the refrigerant is charged in its gaseous state, its composition changes and the system will not work properly. • Do not place the refrigerant container under the direct rays of the sun to prevent it from exploding. • For high-pressure refrigerant, any unapproved pipe must not be used. • Do not heat pipes more than necessary to prevent them from softening. • Be careful not to install wrongly to minimize economic loss because it is expensive in comparison with R22. Unit System(HP) 4 Outdoor Unit Unit System(HP) 70 72 74 76 ARUN700LTS4 ARUN720LTS4 ARUN740LTS4 ARUN760LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 Model Independent Unit ARUN160LTS4 ARUN180LTS4 ARUN180LTS4 ARUN180LTS4 ARUN140LTS4 ARUN140LTS4 ARUN160LTS4 ARUN180LTS4 kg (10 × 2) + (8.5 × 2) (10 × 2) + (8.5 × 2) (10 × 2) + (8.5 × 2) (10 × 2) + (8.5 × 2) Refrigerant Precharged Amount lbs (22 × 2) + (18.7 × 2) (22 × 2) + (18.7 × 2) (22 × 2) + (18.7 × 2) (22 × 2) + (18.7 × 2) Number of maxmum connectable indoor units 64 64 64 64 kg (280 × 2) + (235 × 2) (280 × 2) + (270 × 1) + (235 × 1) (280 × 2) + (270 × 1) + (235 × 1) (280 × 2) + (270 × 2) Net Weight lbs (617 × 2) + (518 × 2) (617 × 2) + (595 × 1) + (518 × 1) (617 × 2) + (595 × 1) + (518 × 1) (617 × 2) + (595 × 2) mm (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 Dimensions (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (48-13/16 × 66-5/32 (WxHxD) inch × 29-29/32) x 4 × 29-29/32) x 4 × 29-29/32) x 4 × 29-29/32) x 4 mm(inch) Ø 22.2(7/8) Ø 22.2(7/8) Ø 22.2(7/8) Ø 22.2(7/8) Piping Conections mm(inch) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Combination Unit 4 Outdoor Unit 78 80 ARUN780LTS4 ARUN800LTS4 Combination Unit ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 ARUN200LTS4 Model Independent Unit ARUN200LTS4 ARUN200LTS4 ARUN180LTS4 ARUN200LTS4 kg (10 × 3) + (8.5 × 1) 10 x 4 Refrigerant Precharged Amount lbs (22 × 3) + (18.7 × 1) 22 x 4 Number of maxmum connectable indoor units 64 64 kg (280 × 3) + (270 × 1) 280 × 4 Net Weight lbs (617 × 3) + (595 × 1) 617 × 4 mm (1,240×1,680×760) × 4 (1,240×1,680×760) × 4 Dimensions (WxHxD) inch (48-13/16 × 66-5/32 × 29-29/32) x 4 (48-13/16 × 66-5/32 × 29-29/32) x 4 mm(inch) Ø 22.2(7/8) Ø 22.2(7/8) Piping Conections mm(inch) Ø 53.98(2-1/8) Ø 53.98(2-1/8) Unit System(HP) 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 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 • With space for air passage and service work shown next • Because of the possibility of fire, do not install unit to the space where generation, inflow, stagnation, and leakage 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. • It is recommended to fence round the outdoor unit in order to prevent any person or animal from accessing the outdoor unit. • 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. • Select installation location considering following conditions to avoid bad condition when additionally performing defrost operation. - Install the outdoor unit at a place well ventilated and having a lot of sunshine in case of installing the product at a place With a high humidity in winter (near beach, coast, lake, etc.) (Ex : Rooftop where there is always sunshine.) 7 Individual Installation During the installation of the unit, consider service, inlet, and outlet acquire the minimum space as shown in the figures below. Category A 4 sides are walls A A A A Rear to Rear Only 2 sides are walls A B B A B A B A D B A D B A D B B B B D BA B A D A A B A A D B A D D B D D DA D B A D B B B B B BA A D D B A A A A B F A D D B D F A D D D B A F B B B F B BA D F A D A A A F D B F F B F F FA D D B A B D A F D B D F D DA D B A F B B B F B BA D F A D A A A F D B F F F D F F B A D B A D B A FD B D FD D A D B A F B B B F B BA D F A D A A A FB D F F F B F FA D DB A B A DF DB D F D DA D B A F B B B F B B A D F A A D A A F D B F F F B F F D A D B A D B F A D B D D F D A D B A F B B B F B B A D F A A D A A A F D B F F F B F F D A D B A D B A D B D D D A D A B B B B B BA B A A B A A A A B A B A A B B B B B A B A A A A A C C C C C C E C C C C EC E C C E C E E C C EE E EE E E E E C E E C E E E C C C C C C C E E C C E E E E E E C C C C C C E E C C E C E E C C E E E E E E C C C C C C A≥10 B≥300 C≥10 D≥500 A≥50 B≥100 C≥50 D≥500 A≥10 B≥300 C≥10 D≥500 E≥20 A≥50 B≥100 C≥50 D≥500 E≥100 A≥10 B≥300 C≥10 D≥500 E≥20 F≥600 A≥50 B≥100 C≥50 D≥500 E≥100 F≥500 A≥10 B≥300 C≥10 D≥300 E≥20 F≥500 A≥50 B≥100 C≥50 D≥100 E≥100 F≥500 A≥10 B≥500 C≥10 D≥500 E≥20 F≥900 A≥50 B≥500 C≥50 D≥500 E≥100 F≥600 - The height of H frame must be more than 2 times the snowfall and its width shall not exceed the width of the product. (If width of the frame is wider than that of the product, snow may accumulate) - Don't install the suction hole and discharge hole of the Outdoor Unit facing the seasonal wind. LIFTING METHOD • When carrying the suspended, unit pass the ropes under the unit and use the two suspension points each at 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. C C C C C C C C C C C E E C C E C E E C C E E E E E E C C C C C C E E E E C C E E C E E E E C C E E E E E E E E E E E E C C C C C C E E E E E E E E E E E E E E E E E E E E E E 1500 h2 B 500 A E E E E h1 Limitations on the height of the wall (Refer to 4 side walls) Case 1 Case 2 (10mm≤Side Space≤49mm) (Side Space≥49mm) Installation Space Seasonal wind and cautions in winter • Sufficient measures are required in a snow area or severe cold area in winter so that product can be operated well. • Get ready for seasonal wind or snow in winter even in other areas. • Install a suction and discharge duct not to let in snow or rain. • Install the outdoor unit not to come in contact with snow directly. If snow piles up and freezes on the air suction hole, the system may malfunction. If it is installed at snowy area, attach the hood to the system. • Install the outdoor unit at the higher installation console by 50cm than the average snowfall (annual average snowfall) if it is installed at the area with much snowfall. • Where snow accumulated on the upper part of the Outdoor Unit by more than 10cm, always remove snow for operation. 45° or more 240 or more 50 or more Locking points for transportation ropes A≥10 B≥500 C≥10 D≥500 E≥20 F≥1200 A≥50 B≥500 C≥50 D≥500 E≥100 F≥900 A≥10 B≥500 C≥10 D≥500 E≥20 F≥1800 A≥50 B≥500 C≥50 D≥500 E≥100 F≥1200 A≥10 B≥300 A≥200 B≥300 E≥400 • The height of the wall on the front side must be 1500mm or less. • The height of the wall on the inlet side must be 500mm or less. • There is no limit to the wall on the side. • If the height of the walls on the front and the side are higher than the limit, there must be additional space on the front and the side. - Additional Space on the front side by 1/2 of h1 - Additional Space on the inlet side by 1/2 of h2 - h1 = A(Actual height) - 1500 - h2 = B(Actual height) - 500 Forklift Carrying Hole Forklift Carrying Guide ! CAUTION Be very careful while carrying the 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 support may make Outdoor Unit unstable, resulting in a fall. • Use 2 belts of at least 8 m long. • Place extra cloth or boards in the locations where the casing comes in contact with the sling to prevent damage. • Hoist the unit making sure it is being lifted at its center of gravity. ENGLISH INSTALLATION SPACE 8 Ⓐ The corner part must be fixed firmly. Otherwise, the support for the installation may be bent. Ⓑ Get and use M10 Anchor bolt. Ⓒ Put Cushion Pad between the outdoor unit and ground support for the vibration protection in wide area. Ⓓ Space for pipes and wiring (Pipes and wirings for bottom side) Ⓔ H-beam support Ⓕ Concrete support Unit : mm m 00m ast 1 At le For outdoor units should not be supported only by the corner supports. m m 00m 00m ast 1 least 1 e l Center of the Unit t A At m 00m ast 1 At le m 00m 00mm 1 ast 1 At le At least Center of the Unit The location of the Anchor bolts Unit : mm 200 200 100 75 75 • Install at places where it can endure the weight and vibration/noise of the outdoor unit. • The outdoor unit supports at the bottom shall have width of at least 100mm under the Unit’s legs before being fixed. • The outdoor unit supports should have minimum height of 200mm. • Anchor bolts must be inserted at least 75mm. ! WARNING • Install where it can sufficiently support the weight of the outdoor unit. If the support strength is not enough, the outdoor unit may drop and hurt people. • Install where the outdoor unit may not fall in strong wind or earthquake. If there is a fault in the supporting conditions, the outdoor unit may fall and hurt people. • Please take extra cautions on the supporting strength of the ground, water outlet treatment(treatment of the water flowing out of the outdoor unit in operation), and the passages of the pipe and wiring, when making the ground support. • Do not use tube or pipe for water outlet in the Base pan. Use drainage instead for water outlet. The tube or pipe may freeze and the water may not be drained. ! CAUTION • Be sure to remove the Pallet(Wood Support) of the bottom side of the outdoor unit Base Pan before fixing the bolt. It may cause the unstable state of the outdoor settlement, and may cause freezing of the heat exchanger resulting in abnormal operations. • Be sure to remove the Pallet(Wood Support) of the bottom side of the outdoor unit before welding. Not removing Pallet(Wood Support) causes hazard of fire during welding. 760 730 At least 65 At least 65 65 65 ENGLISH INSTALLATION Chassis Outdoor Unit Capacity A(mm) B(mm) UX2 UX3 8~12 HP 14~20 HP 920 1240 792 1102 Foundation for Installation • Fix the unit tightly with bolts as shown below so that unit will not fall down due to earthquake or gust. • Use the H-beam support as a base support • Noise and vibration may occur from the floor or wall since vibration is transferred through the installation part depending on installation status. Thus, use anti-vibration materials (cushion pad) fully (The base pad shall be more than 200mm). Pallet(Wood Support) - Remove before Installation Preparation of Piping Main cause of gas leakage is defect in flaring work. Carry out correct flaring work in the following procedure. Cut the pipes and the cable - Use the accessory piping kit or the pipes purchased locally. - Measure the distance between the indoor and the outdoor unit. - Cut the pipes a little longer than measured distance. - Cut the cable 1.5m longer than the pipe length. Pipe Copper tube At least 200mm Reamer 90 Slanted Uneven Rough Point down 9 1 Remove the cap and turn the valve counter clockwise with the hexagon wrench. 2 Turn it until the shaft stops. Handle Bar Opening shutoff valve Do not apply excessive force to the shutoff valve. Doing so may break the valve body, as the valve is not a backseat type. Always use the special tool. Bar "A" Yoke Cone 3 Make sure to tighten the cap securely. Copper pipe Clamp handle Red arrow mark Closing shutoff valve 1 Remove the cap and turn the valve clockwise with the hexagon Flaring work - Carry out flaring work using flaring tool as shown below. Indoor unit [kW(Btu/h] <5.6(19,100) <16.0(54,600) <22.4(76,400) Pipe Gas 1/2" 5/8" 3/4" wrench. 2 Securely tighten the valve until the shaft contacts the main body seal. "A" Liquid 1/4" 3/8" 3/8" Gas 0.5~0.8 0.8~1.0 1.0~1.3 Liquid 0~0.5 0.5~0.8 0.5~0.8 Firmly hold copper tube in a bar(or die) as indicated dimension in the table above. Check - Compare the flared work with figure below. - If flare is noted to be defective, cut off the flared section and do flaring work again. Smooth all round Inside is shining without scratches. = Improper flaring = 3 Make sure to tighten the cap securely. * For the tightening torque, refer to the table on the below. Tightening torque Tightening torque N·m(Turn clockwise to close) Closed Ø6.35 Ø9.52 10.0±1.0 Ø15.88 12.0±1.2 Ø19.05 14.0±1.4 Even length all round Ø25.4 Cap Service Flare Gas line piping (Valve lid) port nut attached to unit Hexagonal Opened wrench 6.0±0.6 Ø12.7 Ø22.2 Inclined Surface Cracked Uneven damaged thickness Shaft (valve body) Shutoff valve size 4mm 17.6±2.0 20.0±2.0 5.0±0.0 30.0±3.0 38±4 55±6 12.7±2 75±7 5mm 25.0±2.5 8mm 16±2 - 110±10 - 25±3 Insulation of shutoff valve Flare shape and flare nut tightening torque 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 "ISO 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: Precautions when connecting pipes - See the following table for flare part machining dimensions. - When connecting the flare nuts, apply refrigerant oil to the inside and outside of the flares and turn them three or four times at first. (Use ester oil or ether oil.) - See the following table for tightening torque.(Applying too much torque may cause the flares to crack.) - After all the piping has been connected, use nitrogen to perform a gas leak check. Pipe size Tightening torque(N·m) A(mm) Ø9.52 38±4 12.8-13.2 Ø12.7 55±6 16.2-16.6 Ø15.88 75±7 19.3-19.7 Flare shape - Add the insulation over 10mm thickness at high humidity environment. 90° ±2 A 45 ° - Heat insulation material to be prepared... EPDM (Ethylene Propylene Diene Methylene)-over 120°C the heat-resistance temperature. Fastening band (accessory) ±2 R=0.4~0.8 ! CAUTION • Always use a charge hose for service port connection. • After tightening the cap, check that no refrigerant leaks are present. • When loosening a flare nut, always use two wrenches in combination, When connecting the piping, always use a spanner and torque wrench in combination to tighten the flare nut. Union • When connecting a flare nut, coat the flare(inner and outer faces) with oil for R410A(PVE) and hand tighten the nut 3 to 4 turns as the initial tightening. Refrigerant piping Indoor unit Thermal insulator (accessory) ENGLISH Burrs removal - Completely remove all burrs from the cut cross section of pipe/tube. - Put the end of the copper tube/pipe to downward direction as you remove burrs in order to avoid to let burrs drop in the tubing. 10 ! CAUTION Pipe must be able to obtain the specified thickness and should be used with low impurities. Also when handling storage, pipe must be careful to prevent a fracture, deformity and wound. Should not be mixed with contaminations such as dust, moisture. Refrigerant piping on three principles Drying Cleanliness Airtight Should be no moisture inside No dust inside. There is no refrigerant leakage Items Dust Moisture Leakage - Significant hydrolysis of refrigerant oil - Degradation of refrigerant oil Cause - Poor insula’tion of failure the compressor - Do not cold and warm - Clogging of EEV, Capillary - Degradation of refrigerant oil - Poor insulation of the compressor - Do not cold and warm - Clogging of EEV, Capillary - Gas shortages - Degradation of refrigerant oil - Poor insulation of the compressor - Do not cold and warm - No moisture in the pipe - Until the connection is completed, the plumbing pipe entrance should be strictly controlled. - Stop plumbing at rainy day. Coun- - Pipe entrance termea- should be taken side or bottom. sure - When removal burr after cutting pipe, pipe entrance should be taken down. - Pipe entrance should be fitted cap when pass through the walls. - No dust in the pipe. - Until the connection is completed, the plumbing pipe entrance should be strictly controlled. - Pipe entrance should be taken side or bottom. - When removal burr after cutting pipe, pipe entrance should be taken down. - Pipe entrance should be fitted cap when pass through the walls. - Airtightness test should be. - Brazing operations to comply with standards. - Flare to comply with standards. - Flange connections to comply with standards. 1 Always use the nitrogen.(not use oxygen, carbon dioxide, and a Chevron gas): Please use the following nitrogen pressure 0.02MPa Oxygen – Promotes oxidative degradation of refrigerant oil. Because it is flammable, it is strictly prohibited to use Carbon dioxide – Degrade the drying characteristics of gas Chevron Gas – Toxic gas occurs when exposed to direct flame. 2 Always use a pressure reducing valve. 3 Please do not use commercially available antioxidant. The residual material seems to be the oxide scale is observed. In fact, due to the organic acids generated by oxidation of the alcohol contained in the anti-oxidants, ants nest corrosion occurs. (causes of organic acid → alcohol + copper + water + temperature) REFRIGERANT PIPING INSTALLATION Precautions on Pipe connection / Valve operation Pipe connection is done by connecting from the end of the pipe to the branching pipes, and the refrigerant pipe coming out of the outdoor unit is divided at the end to connect to each indoor unit. Flare connection for the indoor unit, and welding connection for the outdoor pipe and the branching parts. - Use hexagonal wrench to open/close the valve. Service Port Nitrogen substitution method Welding, as when heating without nitrogen substitution a large amount of the oxide film is formed on the internal piping. The oxide film is a caused by clogging EEV, Capillary, oil hole of accumulator and suction hole of oil pump in compressor. It prevents normal operation of the compressor. In order to avoid this problem, Welding should be done after replacing air by nitrogen gas. When welding plumbing pipe, the work is required. Regulator Welding Point Nitrogen gas Pressure 0.02MPa less Oxide scale Note) should not block the outlet side. When the internal pressure in pipe is abo ve the atmospheric pressure, pinhole is o ccurred and it is a leakage cause. Taping (Should not contain air) Liquid pipe Gas pipe Refrigerant Charging Port ! WARNING Auxiliary valve Nitrogen ENGLISH Plumbing materials and storage methods • Always careful not to leak the refrigerant during welding. • The refrigerant generates poisonous gas harmful to human body if combusted. • Do not perform welding in a closed space. • Be sure to close the cap of the service port to prevent gas leakage after the work. ! CAUTION Please block the pipe knock outs of the front and side panels after installing the pipes. (Animals or foreign objects may be brought in to damage wires.) 11 Pipe Drawing Out during Single / Series connection Method of drawing out pipes on the front side - Proceed with the pipe work as shown in the below figure for front side pipe drawing out. - Pipe connections can be done on the front side or on the side according to the installation environments. - Be sure to let 0.2kgf/cm2 Nitrogen flow in the pipe when welding. - If Nitrogen was not flown during welding, many oxidized membranes may form inside the pipe and disturb the normal operations of valves and condensers. Pipe Knock Out for Liquid/Gas pipes Right Side Pipe Draw Out Regulator Refrigerant Pipe Nitrogen Direction Taping Left Side Pipe Draw Out Valve Nitrogen Method of drawing out pipes on the bottom side - Drawing out common pipe through side panel Front Pipe Draw Out Liquid pipe Gas pipe Preparation Work - Use Knock Outs of Base Pan of the outdoor unit for Left/Right or Bottom pipe drawing outs. Removal Area for Liquid/Gas pipe bottom side connections. ! CAUTION • Do not give damage to the pipe/base during the Knock Out work. • Proceed to pipe work after removing burr after Knock Out work. • Perform sleeve work to prevent damage to the wire when connecting wires using knock Outs. Remove leakage prevention cap • Remove the leakage prevention cap attached to the outdoor unit service valve before pipe work. • Proceed the leakage prevention cap removal as follows: - Verify whether the liquid/gas pipes are locked. - Extract remaining refrigerant or air inside using the service port. - Remove the leakage prevention cap Service Port Liquid pipe Gas pipe Leakage Prevention Cap Refrigerant Charging Port Remove only liquid/gas pipe Knock out ENGLISH PIPE CONNECTIONS BETWEEN INDOOR AND OUTDOOR UNIT 12 Header Method 1 Outdoor Units Y branch method Indoor Unit Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Indoor Units H 110m L150m (200 m : Conditional application)* l 40m (90 m : Conditional application)* ODU Capacity Master ≥ Slave 1 ≥Slave 2 ≥Slave 3 Slave3 Slave2 Slave1 10m or less Slave3 Slave2 Slave1 Master Master L200m H 110m Ⓐ : Outdoor Unit Ⓑ : Header branch Ⓒ : Indoor Units Ⓓ : Sealing Ⓔ : Connection branch pipe between Outdoor units : ARCNN41 Ⓕ : Connection branch pipe between Outdoor units : ARCNN31 Ⓖ : Connection branch pipe between Outdoor units : ARCNN21 l 40m h 40m h 40m Pipe Connection Method between outdoor unit/indoor unit ❈ * : See Table 4 Combination of Y branch/header Method Slave2 Slave3 H1 L2 H 110m L3 L150m (200 m : Conditional application)* l 40m (90 m : Conditional application)* h 40m Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Y branch Ⓓ : Indoor Unit Ⓔ : Header Ⓕ : Sealed piping Slave1 Master - . Indoor Unit / L1 1st branch ❈ * : See Table 4 l 40m Refrigerant pipe diameter from outdoor unit to first branch Header Method Ⓐ : Outdoor Unit Ⓑ : 1st branch Ⓒ : Indoor Units Ⓓ : Sealed piping Ⓔ : Header h 40m ❈ See Table 2 A : Refrigerant pipe diameter from outdoor unit to first branch E : Refrigerant pipe diameter for outdoor unit capacity (Slave 1+ Slave 2+ Slave 3) F : Refrigerant pipe diameter for outdoor unit capacity (Slave 2+ Slave 3) G : Refrigerant pipe diameter for outdoor unit capacity(Slave 3) L200m l 40m H 110m h 40m Series Outdoor Units (2 Units ~ 4 Units) Y branch method Slave2 Slave1 10m or less Indoor Unit Slave2 Slave1 Master Master h 40m ❈ * : See Table 4 ODU Capacity Master ≥ Slave 1 ≥Slave 2 ≥Slave 3 Slave3 Slave2 Slave1 10m or less Master Max length from first branch to each outdoor unit (L1, L2, L3) Combination of Y Header branch/header Method Method Longest A+B+C+D+e≤150 m A+B+b≤150 m A+C+e≤150 m A+f≤200 m pipe (200 m: Conditional (200 m: Conditional application)* length(L) application)* Max pipe Outdoor Unit length 175 m 175 m Equivalent (225 m: Conditional (225 m: Conditional 225 m Indoor Unit pipe length application)* application)* Total pipe 1,000 m 1,000 m 1,000 m length Outdoor Unit Difference in Max 110 m 110 m 110 m height(H) difference Indoor Unit in height Indoor Unit Difference in 40 m 40 m 40 m Indoor Unit height(h) Slave2 Slave1 Master H 110m Longest pipe length after 1st branch ❈ * : See Table 4 Less than 10m (equivalent length of piping 13m) Y branch Method l 40m (90 m : Conditional application)* Slave3 5m (Table 1) Limit Pipe length L150m (200 m : Conditional application)* Combination of Y branch/ header Method Ⓐ : Outdoor Unit Ⓑ : 1st branch(Y branch) Ⓒ : Y branch Ⓓ : Indoor Unit Ⓔ : Connection branch pipe between Outdoor units : ARCNN41 Ⓕ : Connection branch pipe between Outdoor units : ARCNN31 Ⓖ : Connection branch pipe between Outdoor units : ARCNN21 Ⓗ : Header Ⓘ : Sealing Slave3 L150m (200 m : Conditional application)* l 40m (90 m : Conditional application)* h 40m Ⓐ : Outdoor Unit Ⓑ : 1st branch (Y branch) Ⓒ : Indoor Units Ⓓ : Downward Indoor Unit Ⓔ : Connection branch pipe between Outdoor units: ARCNN41 Ⓕ : Connection branch pipe between Outdoor units : ARCNN31 Ⓖ : Connection branch pipe between Outdoor units : ARCNN21 Level Difference (Outdoor unit ↔ Outdoor unit) ODU Capacity Master ≥ Slave 1 ≥Slave 2 ≥Slave 3 Slave3 H 110m ENGLISH Refrigerant piping system Pipe length(l) 40 m 40 m (90 m: Conditional (90 m: Conditional apapplication)* plication)* ❈ * : See Table 4 ! WARNING Increased Pipe Diameter(table 2) - When pipe length is 90m or more from ODU to 1st branch - When level difference is 50m or more 40 m 13 Upward Outdoor unit total capacity HP 8 10 12 ~ 14 16 18 ~ 22 24 26 ~ 34 36 ~ 60 62 ~ 64 66 ~ 80 Increased Pipe Diameter Standard Pipe Diameter Liquid pipe [mm(inch)] Ø 9.52(3/8) Ø 9.52(3/8) Ø 12.7(1/2) Ø 12.7(1/2) Ø 15.88(5/8) Ø 15.88(5/8) Ø 19.05(3/4) Ø 19.05(3/4) Ø 22.2(7/8) Ø 22.2(7/8) When equivalent pipe length is 90m or more from ODU to farthest IDU Gas pipe [mm(inch)] Ø 19.05(3/4) Ø 22.2(7/8) Ø 28.58(1-1/8) Ø 28.58(1-1/8) Ø 28.58(1-1/8) Ø 34.9(1-3/8) Ø 34.9(1-3/8) Ø 41.3(1-5/8) Ø 44.5(1-3/4) Ø 53.98(2-1/8) Liquid pipe [mm(inch)] Ø 12.7(1/2) Ø 12.7(1/2) Ø 15.88(5/8) Ø 15.88(5/8) Ø 19.05(3/4) Ø 19.05(3/4) Ø 22.2(7/8) Ø 22.2(7/8) Ø 25.4(1) Ø 25.4(1) Gas pipe [mm(inch)] Ø 22.2(7/8) Ø 25.4(1) not increased Ø 31.8(1-1/4) Ø 31.8(1-1/4) not increased Ø 38.1(1-1/2) not increased Ø 53.98(2-1/8) not increased When level difference is 50m or more Liquid pipe [mm(inch)] Ø 12.7(1/2) Ø 12.7(1/2) Ø 15.88(5/8) Ø 15.88(5/8) Ø 19.05(3/4) Ø 19.05(3/4) Ø 22.2(7/8) Ø 22.2(7/8) Ø 25.4(1) Ø 25.4(1) Gas pipe [mm(inch)] not increased not increased not increased not increased not increased not increased not increased not increased not increased not increased (Table 3) Refrigerant pipe diameter from first branch to last branch (B,C,D) Downward indoor unit total capacity [kW(Btu/h)] Liquid pipe [mm(inch)] Gas pipe [mm(inch)] ≤ 5.6(19,100) < 16.0 (54,600) ≤ 22.4 (76,400) < 33.6 (114,700) < 50.4 (172,000) < 67.2 (229,400) < 72.8(248,500) < 100.8(344,000) < 173.6(592,500) < 184.8(630,700) ≤ 224.0(764,400) Ø6.35(1/4) Ø9.52(3/8) Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø15.88(5/8) Ø15.88(5/8) Ø19.05(3/4) Ø19.05(3/4) Ø22.2(7/8) Ø22.2(7/8) Ø12.7(1/2) Ø15.88(5/8) Ø19.05(3/4) Ø22.2(7/8) Ø28.58(1-1/8) Ø28.58(1-1/8) Ø34.9(1-3/8) Ø34.9(1-3/8) Ø41.3(1-5/8) Ø44.5(1-3/4) Ø53.98(2-1/8) (Table 4) Conditional Application • To satisfy below condition to make 40 m ~ 90 m of pipe length after first branch. Condition Example Diameter of pipes between first branch and the last branch should be in1 creased by one step, except pipe diameter B,C,D is same as Diameter A 40 m < B+C+D+e 90 m → B, C, D Change a diameter While calculating whole refrigerant pipe length, pipe B,C,D length should be calculated twice. A+Bx2+Cx2+Dx2 +a+b+c+d+e ≤ 1 000 m 2 Ø6.35 → Ø9.52, Ø12.7 → Ø15.88, Ø19.05→ Ø22.2, Ø25.4 → Ø28.58, Ø31.8 → Ø34.9, Ø9.52 → Ø12.7, Ø15.88 → Ø19.05, Ø22.2 → Ø25.4, Ø28.58 → Ø31.8, Ø34.9 → Ø38.1 Indoor Unit H 110m L (A+B+C+D+e)(A+a) ≤ 40 m Pipe length after header branching (a~f) It is recommended that difference in length of the pipes connected to the Indoor Units is minimized. Performance difference between Indoor Units may occur. Outdoor unit Connection ! WARNING • In case of pipe diameter B connected after first branch is bigger than the main pipe diameter A, B should be of the same size with A. Ex) In case indoor unit combination ratio 120% is connected to 24HP(67.2 kW) outdoor unit. 1) Outdoor unit main pipe diameter A : Ø34.9(Gas pipe), Ø15.88(liquid pipe) 2) Pipe diameter B after first branch according to 120% indoor unit ombination(80.6kW) : Ø34.9(gas pipe), Ø19.05(liquid pipe) Therefore, pipe diameter B connected after first branch would be Ø34.9(gas pipe) / Ø15.88(liquid pipe) which is same with main pipe diameter. [Example] Do not choose the main pipe diameter by downward indoor unit total capacity but its outdoor unit model name. Do not let the connection pipe from branch to branch exceed the main pipe diameter chosen by outdoor unit model name. EX) Where connecting the indoor units to the 22 HP (61.6 kW) outdoor unit to 130% of its system capacity (80.1 kW) and branching 7k (2.2kW) indoor unit at the 1st branch. 1) Main pipe diameter(22 HP outdoor unit): Ø28.58(gas pipe), Ø15.88(Liquid pipe) 2) Pipe diameter between 1st and 2nd branch (77.9kW indoor units) : Ø34.9(Gas pipe), Ø19.05(Liquid pipe) in conformity with downward indoor units. Since the main pipe diameter of 22HP outdoor unit is Ø28.58(gas pipe), Ø15.88(Liquid pipe) is used as the main pipe and the connection pipe between 1st and 2nd branch. Indoor Unit Connection Length of pipe from each 3 indoor unit to the closest a,b,c,d,e ≤ 40 m branch Length of pipe from outdoor unit to the farthest indoor unit 5 4 (A+B+C+D+e)] - [Length of pipe outdoor unit to the closest indoor unit 1 (A+a)] ≤ 40 m ! WARNING Indoor Unit connecting pipe from branch (a,b,c,d,e,f) Indoor Unit capacity [kW(Btu/h)] Liquid pipe [mm(inch)] Gas pipe [mm(inch)] l h 40m ! WARNING • In case of pipe diameter B connected after first branch is bigger than the main pipe diameter A, B should be of the same size with A. Ex) In case indoor unit combination ratio 120% is connected to 24HP(67.2 kW) outdoor unit. 1) Outdoor unit main pipe diameter A : Ø34.9(Gas pipe), Ø15.88(liquid pipe) 2) Pipe diameter B after first branch according to 120% indoor unit ombination(80.6kW) : Ø34.9(gas pipe), Ø19.05(liquid pipe) Therefore, pipe diameter B connected after first branch would be Ø34.9(gas pipe) / Ø15.88(liquid pipe) which is same with main pipe diameter. ≤ 5.6(19,100) < 16.0(54,600) < 22.4(76,400) < 28.0(95,900) Ø6.35(1/4) Ø9.52(3/8) Ø9.52(3/8) Ø9.52(3/8) Ø12.7(1/2) Ø15.88(5/8) Ø19.05(3/4) Ø22.2(7/8) ! CAUTION • Bending radius should be at least twice the diameter of the pipe. • Bend pipe after 500 mm or more from branch(or header). Do not bend U type. It may cause Performance unsatisfactory or noise. • If want U type, bending R is more than 200 mm. 500mm or more 500mm or more ENGLISH (Table 2) Refrigerant pipe diameter from outdoor unit to first branch. (A) 14 (Example 1) - Separate Y branch joints are needed for series connections between outdoor units. - Please refer to the below connection examples to install pipe connections between outdoor units. Toward indoor unit Toward indoor unit (Example 2) Pipe connection between outdoor units (General Case) The maximum pipe length after the first branching between the outdoor units is 10m or less Toward indoor unit Pipe inclination (2° or more) Toward indoor unit (Example 3) Pipes between outdoor units are 2m or less Toward indoor unit Toward indoor unit 2m or less Pipes between outdoor units are 2m or longer - Apply Oil Trap as shown below when the length of the pipe between the outdoor units is more than 2m. Otherwise, the unit may not operate properly. Oil Trap 0.2m or more 2m or less 2m or longer (Example 1) Oil Trap 2m or less 2m or longer Oil Trap 2m or less 2m or longer - If the distance between the outdoor units becomes more than 2m, apply Oil Traps between the gas pipes. - If the outdoor unit is located lower than the main pipe, apply Oil Trap. 2m Toward indoor unit (Example 2) 0.2m ENGLISH Pipe Connection Method/Precautions for Series connections between Outdoor units Oil Trap Examples of Wrong Pipe Connections Toward indoor unit 2m 2m If the main pipe is higher than the outdoor units, oil is accumulated in the outdoor unit. Oil Trap - When connecting the pipes between the outdoor units, the accumulation of oil in the slave outdoor unit should be avoided. Otherwise, the unit may not operate properly. (Example 1) If there are differences in the height between the outdoor units, oil is accumulated in the lower outdoor unit. Toward indoor unit Toward indoor unit (Example 2) h Toward indoor unit 15 • Regulation for refrigerant leakage : the amount of refrigerant leakage should satisfy the following equation for human safety. Total amount of refrigerant in the system Oil Trap h ≤0.44 (kg / m3) 0.2m h Volume of the room at which Indoor Unit of the least capacity is installed Toward indoor unit Toward indoor unit The amount of Refrigerant The calculation of the additional charge should take into account the length of pipe and CF(correction Factor) value of indoor unit. Additional charge(kg) = Total liquid pipe : Ø25.4 mm x 0.480(kg/m) + Total liquid pipe : Ø22.2 mm x 0.354(kg/m) + Total liquid pipe : Ø19.05 mm x 0.266(kg/m) + Total liquid pipe : Ø15.88 mm x 0.173(kg/m) + Total liquid pipe : Ø12.7 mm x 0.118(kg/m) + Total liquid pipe : Ø9.52 mm x 0.061(kg/m) + Total liquid pipe : Ø6.35 mm x 0.022(kg/m) CF value of indoor unit If the above equation can not be satisfied, then follow the following steps. • Selection of air conditioning system: select one of the next - Installation of effective opening part - Reconfirmation of Outdoor Unit capacity and piping length - Reduction of the amount of refrigerant - Installation of 2 or more security device (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 : Prepare for earthquake and thermal stress Refrigerant charging Ⓐ Manifold Gauge Ⓑ Low pressure side Handle Ⓒ High pressure side Handle Amount refrigerant of Indoor units Example) 4Way Ceiling Cassette 14.5kW -1ea, Ceiling concealed Duct 7.3kW-2ea, Wall Mounted 2.3kW-4ea CF = 0.64 × 1 + 0.26 × 2 + 0.24 × 4 = 2.12 kg Liquid pipe Attach the additional refrigerant table of IDU. Gas pipe ! WARNING • Pipe to be vacuumed : gas pipe, liquid pipe • If the refrigerant amount is not exact, it may not operate properly. • If additionally bottled refrigerant amount is over 10%, condenser burst or insufficient indoor unit performance may be caused. ! CAUTION Use only 2-series of indoor unit. Ex) ARNU***2 Do not connect Hydrokit with Multi V IV Models. ENGLISH ! WARNING (Example 3) 16 ENGLISH Distribution Method Branch pipe Fitting Horizontal Distribution Y branch Slave Master B A Slave 2nd 1st 3rd main pipe distribution Master Ⓐ To Branch Piping or Indoor Unit Ⓑ To Outdoor Unit • Ensure that the branch pipes are attached horizontally or vertically (see the diagram below.) Facing downwards Horizontal plane Slave Master 1st 2nd Facing upwards Within +/- 10° 3rd A Viewed from point A in direction of arrow 1st 2nd 3rd 1st Main pipe Distribution Within ±3° 3rd Main pipe Distribution Vertical Distribution Within ±3° • 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. - Ensure that the branch pipes are attached vertically. Tape (field supply) Slave Master Liquid and gas pipe joints Insulator (included with kit) Insulator for field piping Header A B Slave Master C Ⓐ To Outdoor Unit Ⓑ To Indoor Unit • 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 pipes to be connected is smaller than the number of header branches, install a cap to the unconnected branches. The others Slave Master • 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. B Pinched pipe Slave Master • Fit branch pipe lie in a horizontal plane. Horizontal plane Header View from point B in the direction of the arrow 17 Header [unit:mm] Models Insulate the header using the insulation material attached to the branch pipe kit as shown in the figure. Gas pipe Liquid pipe 360 360 120 120 ID12.7 ID12.7 4 branch ARBL054 ID6.35 ID6.35 ID15.88 120 ID15.88 ID9.52 150 ID9.52 ID15.88 ID19.05 ID15.88 ID19.05 ID12.7 ID9.52 ID12.7 ID9.52 540 540 120 • Joints between branch and pipe should be sealed with the tape included in each kit. 7 branch ARBL057 150 120 120 ID12.7 ID6.35 ID12.7 ID15.88 ID15.88 120 ID9.52 150 ID15.88 ID19.05 120 150 ID9.52 ID12.7 Tape 400 360 160 120 ID15.88 ID12.7 4 branch ARBL104 Insulator ID6.35 ID19.05 120 ID15.88 Insulator of field pipe Insulator for cap pipe 150 120 ID9.52 700 160 7 branch ARBL107 120 ID15.88 ID6.35 ID6.35 ID12.7 ID19.05 ID15.88 Tape 120 150 ID9.52 ID9.52 ID12.7 ID22.2 760 ID9.52 160 ID15.88 Y branch pipe [unit:mm] Gas pipe ID15.88 ID12.7 ID12.7 ID19.05 ID15.88 ID28.58 Models ID25.4 120 150 ID19.05 ID15.88 ID22.2 ID28.58 150 ID22.2 700 775 I.D12.7 I.D6.35 I.D.6.35 I.D9.52 I.D15.88 182 I.D9.52 I.D15.88 I.D12.7 74 I.D.6.35 I.D.9.52 74 10 branch ARBL2010 ID12.7 1 O.D15.88 ID6.35 ID6.35 ID19.05 ID15.88 281 292 281 292 107 60*9=540 ID15.88 1 I.D19.05 ID25.4 120 Liquid pipe I.D12.7 I.D15.88 ARBLN 01621 150 120 760 160 10 branch ARBL1010 150 ID9.52 ID12.7 580 ID28.58 ID25.4 Cap pipe ID9.52 ID22.2 ID28.58 ID25.4 • Any cap pipe should be insulated using the insulator provided with each kit and then taped as described above. ID6.35 ID31.8 ID34.9 120 150 ID9.52 120 ID9.52 ID28.58 ID15.88 150 ID19.05 O.D9.52 I.D12.7 70 70 70 I.D22.2 I.D19.05 I.D15.88 I.D19.05 I.D12.7 I.D12.7 2 1 I.D9.52 I.D9.52 I.D6.35 Leak Test and Vacuum drying I.D19.05 83 I.D15.88 I.D12.7 I.D25.4 ARBLN 03321 390 413 O.D19.0 5 I.D22.2 I.D28.58 O.D25.4 74 321 332 I.D22.2 O.D19.0 5 1 70 I.D12.7 3 3 I.D12.7 I.D6.35 I.D9.52 I.D25.4 2 80 11 0 I D1905 I.D19.05 I.D28.58 I.D22.2 1 I.D31.8 I.D19.05 ARBLN 07121 I.D19.05 I.D15.88 2 I.D15.88 I.D12.7 376 404 I.D28.58 I.D31.8 I.D34.9 O.D31. 8 O.D19.0 5 I.D22.2 1 120 I.D28.58 O.D1 2.7 83 3 I.D9.52 I.D6.35 O.D12. 7 3 90 I.D12.7 2 I.D12.7 I.D15.88 I.D19.05 I.D19.05 I.D9.52 2 120 11 0 70 1 0 I.D38.1 I.D41.3 I.D34.9 I.D28.58 I.D15.88 2 I.D34.9 I.D19.05 I.D22.2 1 I.D28.58 I.D34.9 I.D22.2 I.D38.1 I.D19.05 I.D15.88 2 Slave 1 outdoor unit Master outdoor unit I.D15.88 I.D19.05 I.D12.7 96 I.D22.2 125 Close 2 3 O.D34.9 I.D38.1 I.D41.3 3 120 130 I.D22.2 90 O.D28.58 I.D12.7 I.D.44.48 I.D41.3 Nitrogen gas cylinder Close Close 3 11 0 I.D.25.4 I.D22.2 I.D.22.2 I.D.19.05 Liquid side 2 Indoor unit I.D.25.4 I.D.22.2 I.D.19.05 96 3 I.D.53.98 I.D.34.9 I.D31.8 I.D.28.58 O.D.44.48 O.D.38.1 2 3 X2 2 3 X2 O.D.28.58 3 100 70 I.D9.52 O.D12. 7 I.D6.35 80 I.D.44.48 I.D38.1 134 420 490 I.D12.7 3 11 0 I.D25.4 2 175 O.D19.0 5 I.D22.2 I.D.44.48 I.D41.3 I.D38.1 I.D.53.98 1 3 O.D15.88 I.D12.7 I.D9.52 2 I.D19.05 2 O.D15.88 O.D15.88 Gas pipe I.D19.05 I.D15.88 O.D38.1 I.D41. 3 Close Liquide pipe 3 O.D22.2 3 416 444 3 Gas pipe 471 517 Liquide pipe ARBLN 14521 ARBLN 23220 I.D15.88 371 394 3 90 1 0 96 I.D15.88 3 2 O.D22.2 I.D12.7 Leak test Leak test should be made by pressurizing nitrogen gas to 3.8 MPa(38.7kgf/cm2). If the pressure does not drop for 24 hours, the system passes the test. If the pressure drops, check where the nitrogen leaks. For the test method, refer to the following figure. (Make a test with the service valves closed. Be also sure to pressurize liquid pipe, gas pipe and high/low pressure common pipe) The test result can be judged good if the pressure has not be reduced after leaving for about one day after completion of nitrogen gas pressurization. 3 O.D.22.2 I.D.19.05 120 346 379 I.D.25.4 I.D.22.2 115 I.D.15.88 3 Gas side I.D.15.88 O.D.19.05 I.D.12.7 X2 2 3 110 I.D9.52 O.D12.7 I.D6.35 3 110 ENGLISH • Header should be insulated with the insulator in each kit. 18 ! WARNING Use a vacuum pump or Inert(nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or explosion. - There is the risk of death, injury, fire or explosion. ! Use a vacuum pump or Inert(nitrogen) gas when doing leakage test or air purge. Do not compress air or Oxygen and do not use Flammable gases. Otherwise, it may cause fire or explosion. - There is the risk of death, injury, fire or explosion. ! NOTE If the ambient temperature differs between the time when pressure is applied and when the pressure drop is checked, apply the following correction factor There is a pressure change of approximately 0.1 kg/cm2 (0.01 MPa) for each 1°C of temperature difference. Correction= (Temp. at the time of pressurization – Temp. at the time of check) X 0.1 For example: Temperature at the time of pressurization (3.8 MPa) is 27 °C 24 hour later: 3.73 MPa, 20°C In this case the pressure drop of 0.07 is because of temperature drop And hence there is no leakage in pipe occurred. NOTE Always add an appropriate amount of refrigerant. (For the refrigerant additional charge) Too much or too little refrigerant will cause trouble. To use the Vacuum Mode (If the Vacuum mode is set, all valves of Indoor units and Outdoor units will be opened.) ! 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. ! CAUTION To prevent the nitrogen from entering the refrigeration system in the liquid state, the top of the cylinder must be at higher position than the bottom when you pressurize the system. Usually the cylinder is used in a vertical standing position. Vacuum Mode This function is used for creating vacuum in the system after compressor replacement, ODU parts replacement or IDU addition/replacement. Vacuum mode setting method Vacuum Vacuum drying should be made from the service port provided on the outdoor unit’s service valve to the vacuum pump commonly used for liquid pipe, gas pipe and high/low pressure common pipe. (Make Vacuum from liquid pipe, gas pipe and high/low pressure common pipe with the service valve closed.) * Never perform air purging using refrigerant. • Vacuum drying: Use a vacuum pump that can evacuate to -100.7kPa (5 Torr, -755mmHg). - Evacuate the system from the liquid and gas pipes with a vacuum pump for over 2 hrs and bring the system to -100.7kPa. After maintaining system under that condition for over 1 hr, confirm the vacuum gauge rises. The system may contain moisture or leak. - Following should be executed if there is a possibility of moisture remaining inside the pipe. (Rainwater may enter the pipe during work in the rainy season or over a long period of time) After evacuating the system for 2 hrs, give pressure to the system to 0.05MPa(vacuum break) with nitrogen gas and then evacuate it again with the vacuum pump for 1hr to -100.7kPa(vacuum drying). If the system cannot be evacuated to -100.7kPa within 2 hrs, repeat the steps of vacuum break and its drying. Finally, check if the vacuum gauge does not rise or not, after maintaining the system in vacuum for 1 hr. Slave 1 outdoor unit 7-Segment SW04C ( X : cancel) SW03C ( ȯ : forward) SW02C (ȭ : backward SW01C (Ɨ : confirm) SW01D (reset) Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “SVC” Push the ‘ ’ button Select the Function using ‘▶’, ‘◀’ Button : “Se3” Push the ‘ ’ button Start the vacuum mode : “VACC” ODU V/V open ODU EEV open IDU EEV open Close Close Vacuum mode off method Gas pipe Gas pipe Liquide pipe Close Close Scale Use a graviometer. (One that can measure down to 0.1kg). If you are unable to prepare such a high-precision gravimeter you may use a charge cylinder. DIP SWITCH Master outdoor unit Vacuum pump Liquide pipe ENGLISH ! WARNING Dip switch off and push the reset button on Master unit PCB Liquid side Indoor unit Gas side ! CAUTION ODU operation stops during vacuum mode. Compressor can't operate. 19 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. Heat insulation Adhesive + Heat - resistant polymaterial ethylene foam + Adhesive tape Indoor Vinyl tape Floor exWater-proof hemp cloth + Outer posed Bronze asphalt covering hemp cloth + Outdoor Water-proof Zinc plate + Oily paint Ⓐ Heat insulation material Ⓑ Pipe Ⓒ Outer covering(Wind the connection part and cutting part of heat insulation material with a finishing tape.) ! NOTE When using polyethylene cover as covering material, asphalt roofing shall not be required. Bad example • Do not insulate gas or low pressure pipe and liquid or highpressure pipe together. B F A C D E Ⓐ Liquid pipe Ⓑ Gas pipe ⓒ Power lines ⓓ Finishing tape ⓔ Insulating material ⓕ Communication lines Penetrations Inner wall (concealed) Outer wall C A Outer wall (exposed) D E B A B B I Floor (fireproofing) Penetrating portion on fire limit and boundary wall D Roof pipe shaft I F J G D B G H B A 1m 1m Ⓐ 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 Caution - Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. • Be sure to fully insulate connecting portion. A ! WARNING Be sure to have authorized electrical engineers do the 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. Ⓐ These parts are not insulated. Good example C Power lines D Communication lines D A B E Separation Ⓐ Liquid pipe Ⓑ Gas pipe ⓒ Power lines ⓓ Insulating material ⓔ Communication lines - Install the Outdoor Unit communication cable away from the power source wiring so that it is not affected by electric noise from the power source. (Do not run it through the same conduit.) - Be sure to provide designated grounding work to Outdoor Unit. ! CAUTION Be sure to correct the outdoor unit to earth. Do not connect ground wire to any gas pipe, liquid pipe, lightening rod or telephone earth line. If earth is incomplete, it may cause an electric shock. - Give some allowance to wiring for electrical part box of Indoor and Outdoor Units, because the box is sometimes removed at the time of service work. - Never connect the main power source to terminal block of communication cable. If connected, electrical parts will be burnt out. - Use 2-core shield cable for communication cable.( mark in the figure below) If communication cable of different systems are wired with the same multiplecore cable, the resultant poor transmitting and receiving will cause erroneous operations. ( mark in the figure below) - Only the communication cable specified should be connected to the terminal block for Outdoor Unit communication. ENGLISH Thermal insulation of refrigerant piping 20 ENGLISH ! CAUTION Outdoor Unit Indoor Unit Indoor Unit Remote control Remote control Outdoor Unit Indoor Unit Indoor Unit Remote control • Use the 2-core shield cables for communication cables. Never use them together with power cables. • The conductive shielding layer of cable should be grounded to the metal part of both units. • Never use multi-core cable • As this unit is equipped with an inverter, to install a phase leading capacitor not only will deteriorate power factor improvement effect, but also may cause capacitor abnormal heating. Therefore, never install a phase leading capacitor. • Make sure that the power unbalance ratio is not greater than 2%. If it is greater the units lifespan will be reduced. Remote control Precautions when laying power wiring 2-Core Shield Cable Use round pressure terminals for connections to the power terminal block. Outdoor Unit Round pressure terminal Indoor Unit Power cable Indoor Unit Remote control Remote control Outdoor Unit Indoor Unit Indoor Unit Remote control When none are available, follow the instructions below. - Do not connect wiring of different thicknesses to the power terminal block. (Slack in the power wiring may cause abnormal heat.) - When connecting cable which is the same thickness, do as shown in the figure below. Remote control Multi-Core Cable - For wiring, use the designated power cable and connect firmly, then secure to prevent outside pressure being exerted on the terminal block. - Use an appropriate screwdriver for tightening the terinal screws. A screwdriver with a small head will strip the head and make proper tighterning impossible. - Over-tightening the terminal screws may break them. Outdoor Unit Master Slave1 Slave2 Indoor Unit Indoor Unit Remote controller Remote controller Outdoor Unit Master Slave1 Indoor Unit Remote controller Control box and connecting position of wiring Remote controller 2-Core Shield Cable Outdoor Unit Slave1 When the 400 volt power supply is applied to “N” phase by mistake, check damaged parts in control box and replace them. Slave2 Indoor Unit Master ! CAUTION Slave2 Indoor Unit Indoor Unit Remote controller - Remove all of the screws at front panel and remove the panel by pulling it forward. - Connect communication cable between main and sub outdoor unit through the terminal block. - Connect communication cables between outdoor unit and indoor units through the terminal block. - When the central control system is connected to the outdoor unit, a dedicated PCB must be connected between them. - When connecting communication cable between outdoor unit and indoor units with shielded cable, connect the shield ground to the earth screw. Remote controller Outdoor Unit Master Slave1 Slave2 Indoor Unit Remote controller Indoor Unit Remote controller Multi-Core Cable Front Panel 21 ! CAUTION The temperature sensor for outdoor air should not be exposed to direct sunlight. - Provide an appropriate cover to intercept direct sunlight. [Heat pump] Wiring of main power supply and equipment capacity UX3 UX2 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. - Use a separate power supply for the Outdoor Unit and Indoor Unit. - Bear in mind ambient conditions (ambient temperature,direct sunlight, rain water,etc.) when proceeding with the wiring and connections. - The cable size is the minimum value for metal conduit wiring. The power cord size should be 1 rank thicker taking into account the line voltage drops. Make sure the power-supply voltage does not drop more than 10%. - Specific wiring requirements should adhere to the wiring regulations of the region. - Power supply cords of parts of appliances for outdoor use should not be lighter than polychloroprene sheathed flexible cord. - Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply. Main PCB Noise Filter External PCB Take care of the phase sequence of 3-phase 4-wire power system The thickness of Minimum wire (mm2) Leakage circuit breaker Main power Branch wire Ground wire (4P ELCB) wire Communication and Power Cables Communication cable - Types : shielding cable - Cross section : 1.0~1.5mm2 - Maximum allowable temperature: 60°C - Maximum allowable cable length: under 1000m Remote control cable - Types : 3-core cable 1 Unit 2.5~6 - 2.5 Below 30~50A 100mA 0.1sec 2 Unit 10~16 - 2.5 Below 75~100A 100mA 0.1sec 3 Unit 25~35 - 4 Below 125~150A 100mA 0.1sec 4 Unit 70 - 6 Below 175~200A 100mA 0.1sec Central control cable Product type ACP&AC Manager AC Smart Simple central controller Cable type 2-core cable (Shielding cable) 2-core cable (Shielding cable) 4-core cable (Shielding cable) Diameter 1.0~1.5mm2 1.0~1.5mm2 1.0~1.5mm2 Separation of communication and power cables - If communication and power cables are run alongside each other then there is a strong likelihood of operational faults developing due to interference in the signal wiring caused by electrostatic and electromagnetic coupling. The tables below indicates our recommendation as to appropriate spacing of communication and power cables where these are to be run side by side Current capacity of power cable 10A 50A 100V or more 100A Exceed 100A ! Spacing 300mm 500mm 1000mm 1500mm NOTE • 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 cable involved. • If the power supply waveform continues to exhibit some distortion the recommended spacing in the table should be increased. - If the cable are laid inside conduits then the following point must also be taken into account when grouping various cable together for introduction into the conduits - Power cable(including power supply to air conditioner) and communication cables must not be laid inside the same - In the same way, when grouping the power wires and communication cables should not be bunched together. Ground wire 1 The power wire Between the master outdoor unit and slave1 outdoor unit - minimum : 6 mm2 2 The power wire Between the slave1 outdoor unit and slave2 outdoor unit - minimum : 4 mm2 3 The power wire Between the slave2 outdoor unit and slave3 outdoor unit - minimum : 2.5 mm2 ❈ The above standard is CV wire standard. ❈ Please use the 3-phase 4-wire quadrupole Leakage circuit breaker of circuit breaker. ! WARNING • Follow ordinance of your governmental organization for technical standard related to electrical equipment, wiring regulations and guidance of each electric power company. • Make sure to use specified cables for connections so that no external force is imparted to terminal connections. If connections are not fixed firmly, it may cause heating or fire. • Make 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. ENGLISH ! WARNING 22 ENGLISH Point for attention regarding quality of the public electric power supply This equipment complies with respectively: • EN/IEC 61000-3-11 (1) provided that the system impedance Zsys is less than or equal to Zmax and • EN/IEC 61000-3-12 (2) provided that the short-circuit power Ssc is greater than or equal to the minimum Ssc alue at the interface point between the user's supply and the public system. It is the responsibility of the installer or user of the equipment to ensure, by consultation with the distribution network operator if necessary, that the equipment is connected only to a supply with respectively: • Zsys less than or equal to Zmax and • Ssc greater than or equal to the minimum Ssc value. Standard combination of outdoor units Zmax (Ω) Minimum Ssc Value (kVA) ARUN080LTE4 - 3921 ARUN100LTE4 - 6415 ARUN120LTE4 - 6415 ARUN140LTE4 - 4964 ARUN160LTE4 - 4964 ARUN180LTE4 - 6994 ARUN200LTE4 - 6994 (1) European / International Technical Standard setting the limits for voltage changes, voltage fluctuations and flicker in public low-voltage supply systems for equipment with rated current ≤75 A. (2) European / International Technical Standard setting the limits for harmonic currents produced by equipment connected to public low-voltage systems with input current >16 A and ≤75 A per phase. Field Wiring [Heat Pump] Between Indoor and Master Outdoor unit Single outdoor unit SODU. B SODU. A Outdoor Power supply (3Ø 4wires) Frequency [Outdoor Unit] (Main Switch) R S T N 60Hz 50Hz Voltage range(V) Outdoor Indoor 380V 220V 380-415V 220-240V 3 IDU. B IDU. A 4 CEN. B 3 CEN. A DRY1 DRY2 4 GND 3 12V Master Outdoor Unit The GND terminal at the main PCB is a ‘-’ terminal for day contact, it is not the point to make ground connection. 4 Switch Fuse Indoor Power supply (1Ø 2wires) L N Power cable (4 Wires Cable) Power cable (2 Wires Cable) Communication cable (2 Wires Cable) Pull Box (Installer option) Pull Box (Installer option) Pull Box (Installer option) Pull Box (Installer option) Series outdoor units When the power source is connected In series between the units. Frequency 60Hz 50Hz Outdoor Power supply (3Ø 4wires) [Master] (Main Switch) [Slave1] Voltage range(V) Outdoor Indoor 380V 220V 380-415V 220-240V [Slave2] [Slave3] R S T N Switch Power cable (2 Wires Cable) Power cable (2 Wires Cable) Power cable (2 Wires Cable) Power cable (2 Wires Cable) Indoor Power supply (1Ø 2wires) L Fuse N Power cable (4 Wires Cable) Communication cable (3 Wires Cable) Power cable (2 Wires Cable) [Indoor Units] ! WARNING • Indoor Unit ground wires are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply. • Install the main switch that can interrupt all the power sources in an integrated manner because this system consists of the equipment utilizing the multiple power sources. • If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase may break the compressor and other parts. Communication cable (2 Wires Cable) Pull Box (Installer option) Power cable (2 Wires Cable) Pull Box (Installer option) Power cable (2 Wires Cable) Pull Box (Installer option) Power cable (2 Wires Cable) Pull Box (Installer option) Power cable (2 Wires Cable) Communication cable (3 Wires Cable) [Indoor Units] ! WARNING When the total capacity is over than as follow, the power source do not use in series between the units. The First terminal block could be burnt out. (Heat Pump : 62 Hp) 23 Outdoor Power supply (3Ø 4wires) [Master] (Main Switch) R S T N Switch Indoor Power supply (1Ø 2wires) L R S T N R S T N Switch Fuse Switch Fuse [Slave1] [Slave2] [Slave3] R S T N Switch Fuse Fuse Example) Connection of transmission wire [BUS type] - Connection of communication cable must be installed like below figure between indoor unit to outdoor unit. N [STAR type] - Abnormal operation can be caused by communication defect, when connection of communication cable is installed like below figure(STAR type). Power cable (2 Wires Cable) Communication cable (2 Wires Cable) Power cable (4 Wires Cable) Pull Box (Installer option) Pull Box (Installer option) Power cable (2 Wires Cable) Frequency 60Hz 50Hz Pull Box (Installer option) Power cable (2 Wires Cable) Pull Box (Installer option) Power cable (2 Wires Cable) Power cable (2 Wires Cable) Communication cable (3 Wires Cable) Voltage range(V) Outdoor Indoor 380V 220V 380-415V 220-240V [Indoor Units] Example) Connection of power and communication cable (UX2) Left Side Right Side ! WARNING • Indoor Unit ground wires are required for preventing electrical shock accident during current leakage, Communication disorder by noise effect and motor current leakage (without connection to pipe). • Don't install an individual switch or electrical outlet to disconnect each of indoor unit separately from the power supply. • Install the main switch that can interrupt all the power sources in an integrated manner because this system consists of the equipment utilizing the multiple power sources. • If there exists the possibility of reversed phase, lose phase, momentary blackout or the power goes on and off while the product is operating, attach a reversed phase protection circuit locally. Running the product in reversed phase may break the compressor and other parts. Main power terminal block Main power terminal block Ground wire Ground wire Power/ Ground cable Power/ Ground cable Over 50mm gap Over 50mm gap Communication cable Communication cable Front Side 1 Front Side 2 Main power terminal block Main power terminal block Ground wire [Heat Pump] Between Indoor and Master Outdoor unit SODU. B SODU. A 3 4 IDU. B IDU. A 3 CEN. B 4 CEN. A DRY1 DRY2 3 GND 4 12V Master Outdoor Unit Ground wire Power/ Ground cable Over 50mm gap SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V SODU. B SODU. A IDU. B IDU. A CEN. B CEN. A DRY1 DRY2 GND 12V Master Outdoor unit Slave1 Outdoor Unit Slave2 Outdoor Unit Power/Ground cable Communication cable Main Power Connection Communication Connection Main power terminal block Insulation sleeves attachments Slave3 Outdoor Unit ODU-IDU Communication cable ODU-ODU Communication cable Fix firmly not to be displaced The GND terminal at the main PCB is a ‘-’ terminal for dry contact. It is not the point to make ground connection. - Make sure that terminal number of master and slave outdoor units are matched.(A-A,B-B) Communication cable Over 50mm gap ! CAUTION It should be wiring power cables or communication cables to avoid interference with the oil level sensor. Otherwise, That oil level sensor would be operated abnormally. Example) Connection of power and communication cable (UX3) Left Side Main power terminal werblock Right Side Main power terminal block Ground e wire Ground wire Power/ Ground cable Power/ Ground cable Over 50mm gap Communication cable Over 50mm gap Communication cable ENGLISH When the power source is supplied to Each outdoor unit individually. e e 24 ENGLISH Front Side 1 Automatic Addressing Front Side 2 The address of indoor units would be set by Automatic Addressing Main power terminal block Main power terminal block Ground wire Ground wire Power/ Ground cable Over 50mm gap Communication cable Power/Ground cable Over 50mm gap Main Power Connection Communication cable Communication Connection - Wait for 3 minutes after supplying power. (Master and Slave outdoor units, indoor units) - Press RED button of the outdoor units for 5 seconds. (SW01C) - A “88” is indicated on 7-segment LED of the outdoor unit PCB. - For completing addressing, 2~7 minutes are required depending on numbers of connected indoor units - Numbers of connected indoor units whose addressing is completed are indicated for 30 seconds on 7-segment LED of the outdoor unit PCB - After completing addressing, address of each indoor unit is indicated on the wired remote control display window. (CH01, CH02, CH03, ……, CH06 : Indicated as numbers of connected indoor units) Main power terminal block Insulation sleeves attachments [Heat Pump (MAIN PCB)] DIP-SWITCH 7 - Segment ODU-IDU Communication cable ODU-ODU Communication cable Fix firmly not to be displaced SW04C ( : cancel) ! CAUTION SW03C (ඖ: forward) It should be wiring power cables or communication cables to avoid interference with the oil level sensor. Otherwise, That oil level sensor would be operated abnormally. Checking the setting of outdoor units Checking according to dip switch setting - You can check the setting values of the Master outdoor unit from the 7 segment LED. The dip switch setting should be changed when the power is OFF. Checking the initial display The number is sequentially appeared at the 7 segment in 5 seconds after applying the power. This number represents the setting condition. SW02C (ඔ: backward) SW01C ( ̻: confirm) SW01D (reset) ! CAUTION • In replacement of the indoor unit PCB, always perform Automatic addressing setting again (At that time, please check about using Independent power module to any indoor unit.) • If power supply is not applied to the indoor unit, operation error occur. • Automatic Addressing is only possible on the master Unit. • Automatic Addressing has to be performed after 3 minutes to improve communication. The Procedure of Automatic Addressing • Initial display order Order ① ② ③ ④ ⑤ No 8~20 10~20 10~20 10~20 8~80 1 2 3 38 46 22 1 2 ⑥ ⑦ ⑧ Power On Mean Master model capacity Slave 1 model capacity Slave 2 model capacity Slave 3 model capacity Total capacity Cooling Only Heat Pump Heat Recovery 380V model 460V model 220V model LTE4 LTS4 Waiting 3 minutes Press RED Button for 5 sec. (SW01C) Automatic addressing start 7-segment LED Don’t press RED Button (SW01C) 7-segment LED = 88 YES ① ② ③ ④ ⑤ ⑥ ⑦ ⑧ 18 16 14 14 62 2 38 1 Dip switch setting • Automatic addressing setting end Numbers of indoor unit connection set whose addressing is completed are indicated for 30seconds on 7-segment LED after completing setting Waiting about 2~7 minutes • Example) ARUN620LTE4 • Master Unit = 88 OK NO Check the connections of communication cable Indoor address number is displayed on wired remote control or indoor unit display window. It is not an error message, will disappeared when on/off button is pressed on remote control ex) Display of 01, 02, ..., 15 means connection of 15 indoor units and Automatic addressing is completed normally. • Slave Unit Dip switch setting ODU Setting Slave 1 Setting the function Select the mode/function/option/value using ‘▶’, ‘◀’ Button and confirm that using the ‘ ’ button after dip switch No.5 is turned on. DIP-SW01 7 - Segment Slave 2 SW04C ( : cancel) SW03C (ඖ: forward) SW02C (ඔ: backward) Slave 3 SW01C (̻: confirm) SW01D (reset) 25 Function Content Option Display2 Installation Cool & Heat Selector Content Value Action Display3 Content Display4 Implement Display5 Selected oFF op1~ op2 the option - Remarks - Change the set Blank Save in EEPROM value - Change the set Blank Save in EEPROM value Static pressure compensation Selected oFF op1~ op3 the option Night low noise Selected oFF op1~o p12 the option - - Change the set Blank Save in EEPROM value Overall defrost on Selected oFF the option - - Change the set Blank Save in EEPROM value ODU address - - - 0~255 Selected oFF op1~ op3 the option - - Change the set Blank Save in EEPROM value IDU capacity adjusting on Selected oFF the option - - Change the set Blank Save in EEPROM value Target pressure adjusting Selected oFF op1~ op3 the option - - Change the set Blank Save in EEPROM value Comfort Operation on selected oFF the option - - Change the set Blank Save in EEPROM value * Functions save in EEPROM will be kept continuously, though the system power was reset. Group Number setting CEN.B Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn1” Push the ‘ ’ button Select the Option using ‘▶’, ‘◀’ Button : “oFF”,“op1”,“op2” Push the ‘ ’ button Cool & Heat Selection mode is set Function setting Switch control Switch(Phase) Switch(Bottom) oFF Right Left Not operate Right Right Not operate Left Not operate Function op1(mode) Cooling Heating Fan mode op2(mode) Cooling Heating Off Right side Switch (Phase) Switch (Bottom) ! CAUTION • Ask an authorized technician to setting a function. • If do not use a function, set an off-mode. • If use a function, first install a Cool & Heat selector. Outdoor Units (External PCB) IDU.A Mode setting method Left side Group Number setting for Indoor Units - Confirm the power of whole system(Indoor Unit, Outdoor Unit) is OFF, otherwise turn off. - The communication cables connected to CEN.A and CEN.B terminal should be connected to central control of Outdoor Unit with care for their polarity (A-A, B-B ). - Turn the whole system on. - Set the group and Indoor Unit number with a wired remote control. - To control several sets of Indoor Units into a group, set the group ID from 0 to F for this purpose. IDU.B Cool & Heat selector set Change the the set Blank Save in EEPROM value value Snow removal & rapid defrost SODU.B SODU.A ENGLISH Mode Content Display1 CEN.A DRY1 DRY2 GND 12V Static pressure compensation mode This function secures the air flow rate of ODU, in case static pressure has been applied like using duct at fan discharge of ODU. B(D) A(C) Static pressure compensation mode setting method Example) Group number setting 1 F Group Indoor unit 1st number indicate the group number 2nd number point out indoor unit number Group recognizing the central controller No.0 group (00~0F) No.1 group (10~1F) No.2 group (20~2F) No.3 group (30~3F) No.4 group (40~4F) No.5 group (50~5F) No.6 group (60~6F) No.7 group (70~7F) No.8 group (80~8F) No.9 group (90~9F) No. A group (A0~AF) No. B group (B0~BF) No. C group (C0~CF) No. D group (D0~DF) No. E group (E0~EF) No. F group (F0~FF) Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn2” Push the ‘ ’ button Select the Option using ‘▶’, ‘◀’ Button : “op1~op3” Push the ‘ ’ button Start the Static pressure compensation mode : Save the selected option value in EEPROM FAN Maximum RPM of each step Capacity Max. RPM Standard op1 op2 op3 8~12 HP 730 760 780 800 14~20 HP 950 1020 1050 1130 26 ENGLISH Night Low Noise Function In cooling mode, this function makes the ODU fan operate at low RPM to reduce the fan noise of ODU at night which has low cooling load. Mode setting - on: Operate overall defrost - off: Operate partial defrost Night low noise function setting method ! CAUTION Master unit PCB DIP switch on : No.5 • Ask an authorized technician to setting a function. * ARUN***LTS4 models operate only overall defrost function. Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Setting the ODU address Select the Function using ‘▶’, ‘◀’ Button : “Fn3” Push the ‘ ’ button Mode setting method Master unit PCB DIP switch on : No.5 Select the Option using ‘▶’, ‘◀’ Button : “op1~op12” Push the ‘ ’ button Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Start the Night low noise function : Save the selected option value in EEPROM Select the Function using ‘▶’, ‘◀’ Button : “Fn5” Push the ‘ ’ button Time Settings Step op1 op2 op3 op4 op5 op6 op7 op8 op9 op10 op11 op12 Judgment Time(Hr) Operation Time(Hr) 8 9 6.5 10.5 5 12 8 9 6.5 10.5 5 12 8 9 6.5 10 5 12 Continuous operation Continuous operation Continuous operation Select the Option using ‘▶’, ‘◀’ Button : “0” ~ “255” Push the ‘ ’ button ODU address is set ! CAUTION • Ask an authorized technician to setting a function. • If use a function, first install a Central controller. Noise Snow removal & rapid defrost Capacity Heat Pump Step op1~op3, op10 op4~op6, op11 op7~op9, op12 8~12HP 14~20HP Noise(dB) 55 52 49 ! CAUTION • Request installer to set the function during installation. • If ODU RPM changes, cooling capacity may go down. Overall defrost mode 59 56 53 Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn6” Push the ‘ ’ button Select the Option using ‘▶’, ‘◀’ Button : “oFF”,“op1” ~ “op3” Push the ‘ ’ button Mode setting method Mode is set Master unit PCB DIP switch on : No.5 Mode setting Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn4” Push the ‘ ’ button Select the Option using ‘▶’, ‘◀’ Button : “on” ~ “oFF” Push the ‘ ’ button Overall defrost mode is set setting Mode oFF Not setting op1 Snow removal mode op2 Rapid defrost mode op3 Snow removal mode. + Rapid defrost mode. ! CAUTION • Ask an authorized technician to setting a function. • If do not use a function, set an off-mode. 27 Comfort Operation Mode setting method Mode setting method Master unit PCB DIP switch on : No.5 Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn7” Push the ‘ ’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn9” Push the ‘ ’ button Select the Option using ‘▶’, ‘◀’ Button : “on” ~ “oFF” Push the ‘ ’ button Select the Option using ‘▶’, ‘◀’ Button : “on” ~ “oFF” Push the ‘ ’ button IDU capacity adjusting is set Comfort Operation mode is set ! CAUTION ! CAUTION • Ask an authorized technician to setting a function. * ARUN***LTS4 models operate only overall defrost function. Target pressure adjusting Mode setting method Master unit PCB DIP switch on : No.5 Select the mode using ‘▶’, ‘◀’ Button : “Func” Push the ‘ ’ button Select the Function using ‘▶’, ‘◀’ Button : “Fn8” Push the ‘ ’ button Select the Option using ‘▶’, ‘◀’ Button : “HEAT” , “COOL” Push the ‘ ’ button Select the Option using ‘▶’, ‘◀’ Button : “op1” ~ “op4” Push the ‘ ’ button Target pressure is set Setting Mode Purpose Heat op1 Increase capacity Cool Condensing Evaporating temperature temperature variation variation Increase capacity +2 °C -3 °C op2 Decrease power consumption Increase capacity -2 °C -1.5 °C op3 Decrease power consumption Decrease power consumption -4 °C +2.5 °C op4 Decrease power consumption Decrease power consumption -6 °C -4.5 °C ! CAUTION • Ask an authorized technician to setting a function. • If do not use a function, set an off-mode. • Change a power consumption or capacity. • Ask an authorized technician to setting a function. * If do not use a function, set an off-mode. ENGLISH IDU capacity adjusting 28 Error Indicator - This function indicates types of failure in self-diagnosis and occurrence of failure for air condition. - 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. Error Display 1st,2nd,3rd LED of 7-segment indicates error number, 4th LED indicates unit number.(* = 1: Master, 2: Slave 1, 3: Slave 2, 4: Slave 3) Ex) Repeat Error No. of Unit Error No. of Compressor Error No. * Refer to the DX-Venitilation manual for DX-Venitilation error code. Indoor unit related error Display Outdoor unit related error ENGLISH Self-Diagnosis Function Title Cause of Error 0 1 - Air temperature sensor of indoor unit Air temperature sensor of indoor unit is open or short 0 2 - Inlet pipe temperature sensor of indoor unit Inlet pipe temperature sensor of indoor unit is open or short 0 3 - Communication error : wired remote controller indoor unit Failing to receive wired remote controller signal in indoor unit PCB 0 4 - Drain pump Malfunction of drain pump 0 5 - Communication error : outdoor unit indoor unit Failing to receive outdoor unit signal in indoor unit PCB 0 6 - Outlet pipe temperature sensor of indoor unit Outlet pipe temperature sensor of indoor unit is open or short 0 9 - Indoor EEPROM Error In case when the serial number marked on EEPROM of Indoor unit is 0 or FFFFFF 1 0 - Poor fan motor operation Disconnecting the fan motor connector / Failure of indoor fan motor lock 1 7 - Inlet Air temperature sensor of FAU Air temperature sensor of indoor unit is open or short 2 1 * Master Outdoor Unit Inverter Compressor IPM Fault Master Outdoor Unit Inverter Compressor Drive IPM Fault 2 2 * Inverter Board Input Over Current(RMS) of Master Outdoor Unit Master Outdoor Unit Inverter Board Input Current excess (RMS) 2 3 * Master Outdoor Unit Inverter Compressor DC link Low Voltage DC charging is not performed at Master Outdoor Unit after starting relay turn on. 2 4 * Master Outdoor Unit High Pressure Switch System is turned off by Master Outdoor Unit high pressure switch. 2 5 * Master Outdoor Unit Input Voltage High/ Low Voltage Master Outdoor Unit input voltage is over 487V or below 270V 2 6 * Master Outdoor Unit Inverter Compressor Start Failure The First Start Failure by Master Outdoor Unit Inverter Compressor Abnormality 2 9 * Master Outdoor Unit Inverter Compressor Over Current Master Outdoor Unit Inverter Compressor Fault OR Drive Fault 3 2 * Master Outdoor Unit Inverter Compressor1 High Discharge Temperature Master Outdoor Unit Inverter Compressor1 High Discharge Temperature 3 3 * Master Outdoor Unit Inverter Compressor2 High Discharge Temperature Master Outdoor Unit Inverter Compressor2 High Discharge Temperature 3 4 * High Pressure of Master Outdoor Unit High Pressure of Master Outdoor Unit 29 Outdoor unit related error Title Cause of Error 3 5 * Low Pressure of Master Outdoor Unit Low Pressure of Master Outdoor Unit 3 6 * Master Outdoor Unit Low Compression Ratio Limited Master Outdoor Unit Low Compression Ratio Limited 4 0 * Master Outdoor Unit Inverter Compressor CT Sensor Fault Master Outdoor Unit Inverter Compressor CT Sensor open or short 4 1 * Master Outdoor Unit Inverter Compressor1 Discharge Temperature Sensor Fault Master Outdoor Unit Inverter Compressor Discharge Temperature Sensor open or short 4 2 * Master Outdoor Unit Low Pressure Sensor Fault Master Outdoor Unit Low Pressure Sensor open or short 4 3 * Master Outdoor Unit High Pressure Sensor Fault Master Outdoor Unit High Pressure Sensor open or short 4 4 * Master Outdoor Unit Air Temperature Sensor Fault Master Outdoor Unit Air Temperature Sensor open or short 4 5 * Master Outdoor Unit Heat Exchanger Temperature Sensor (Front side) Fault Master Outdoor Unit Heat Exchanger Temperature Sensor(Front side) open or short 4 6 * Master Outdoor Unit Suction Temperature Sensor Fault Master Outdoor Unit Suction Temperature Sensor open or short 4 7 * Master Outdoor Unit Inverter Compressor2 Discharge Temperature Sensor Fault Master Outdoor Unit Inverter Compressor2 Discharge Temperature Sensor open or short 4 9 * Master Outdoor Unit Faulty IPM Temperature Sensor Master Outdoor Unit IPM Temperature Sensor short/open 5 0 * Omitting connection of R, S, T power of Master Outdoor Unit Omitting connection of Master outdoor unit 5 1 * Excessive capacity of indoor units Excessive connection of indoor units compared to capacity of Outdoor Unit 5 2 * Communication error : inverter PCB Main PCB Failing to receive inverter signal at main PCB of Master Outdoor Unit 5 3 * Communication error : indoor unit Main PCB of Outdoor Unit Failing to receive indoor unit signal at main PCB of Outdoor Unit . 5 7 * Communication error : Main PCB inverter PCB Failing to receive signal main PCB at inverter PCB of Master Outdoor Unit 5 9 * Mixing Installation of Sub Outdoor Unit Wrong combination of Outdoor units Mixing Installation of Old Sub Outdoor Unit and New Slave Outdoor Unit Installed combination mixed with old series model(Multi V III, II.) 6 0 * Inverter PCB EEPROM Error of Master Outdoor Unit Access Error of Inverter PCB of Master Outdoor Unit 6 2 * Master Outdoor Unit Inverter Heatsink High Temperature System is turned off by Master Outdoor Unit Inverter Heatsink High Temperature 6 5 * Master Outdoor Unit Inverter Heatsink Temperature Sensor Fault Master Outdoor Unit Inverter Heatsink Temperature Sensor open or short 6 7 * Master Outdoor Unit Fan Lock Restriction of Master Outdoor Unit 7 1 * Converter CT Sensor Error of Master Outdoor Unit Converter CT Sensor open or short of Master Outdoor Unit 7 5 * Master Outdoor Unit Fan CT Sensor Error Master Outdoor Unit Fan CT Sensor open or short 7 6 * Master Outdoor Unit Fan DC Link High Voltage Error Master Outdoor Unit Fan DC Link High Voltage Error 7 7 * Master Outdoor Unit Fan Over Current Error Master Outdoor Unit Fan Current is over 5A 7 9 * Master Outdoor Unit Fan Start Failure Error Master Outdoor Unit Fan First Position Sensing Failure 8 6 * Master Outdoor Unit Main PCB EEPROM Error Communication Fail Between Master Outdoor Unit Main MICOM and EEPROM or omitting EEPROM 8 7 * Master Outdoor Unit Fan PCB EEPROM Error Communication Fail Between Master Outdoor Unit Fan MICOM and EEPROM or omitting EEPROM ENGLISH Display 30 Outdoor unit related error ENGLISH 1 0 4 * Communication Error Between Master Outdoor Unit and Other Outdoor Unit Failing to receive Slave Unit signal at main PCB of Master Outdoor Unit 1 0 5 * Master Outdoor Unit Fan PCB Communication Error Failing to receive fan signal at main PCB of Master unit. 1 0 6 * Master Outdoor Unit FAN IPM Fault Error Instant Over Current at Master Outdoor Unit Fan IPM 1 0 7 * Master Outdoor Unit Fan DC Link Low Voltage Error Master Outdoor Unit Fan DC Link Input Voltage is under 380V 1 1 3 * Master Outdoor Unit Liquid pipe Temperature Sensor Error Liquid pipe temperature sensor of Master Outdoor Unit is open or short 1 1 4 * Master Outdoor Unit Subcooling Inlet Temperature Sensor Error Master Outdoor Unit Subcooling Inlet Temperature Sensor Error 1 1 5 * Master Outdoor Unit Subcooling Outlet Temperature Sensor Error Master Outdoor Unit Subcooling Outlet Temperature Sensor Error 1 1 6 * Master Outdoor Unit Oil Level Sensor Error Oil Level Sensor of Master Outdoor Unit is open or short 1 4 5 * Master outdoor unit Main Board - External Board communication Error Master outdoor unit Main Board - External Board communication Error 1 5 1 * Failure of operation mode conversion at Master Outdoor Unit Failure of operation mode conversion at Master Outdoor Unit 1 5 3 * Master Outdoor Unit Heat Exchanger Temperature Sensor (upper part) Fault Master Outdoor Unit Heat Exchanger Temperature Sensor (upper part) Fault 1 5 4 * Master Outdoor Unit Heat Exchanger Temperature Sensor (lower part) Fault Master Outdoor Unit Heat Exchanger Temperature Sensor(lower part) open or short 1 8 2 * Master outdoor unit External Board Main-Sub Micom communication Error Master Outdoor Unit Main Board Main-Sub Micom communication failed 1 9 3 * Master Outdoor Unit Fan Heatsink High Temperature System is turned off by Master Outdoor Unit Fan Heatsink High Temperature 1 9 4 * Master Outdoor Unit Fan Heatsink Temperature Sensor Fault Master Outdoor Unit Fan Heatsink Temperature Sensor open or short CAUTION FOR REFRIGERANT LEAK The installer and system specialist shall secure safety against leakage according to local regulations or standards. The following standards may be applicable if local regulations are not available. Introduction Though the R410A refrigerant is harmless and incombustible itself , the room to equip the air conditioner should be large to such an extent that the refrigerant gas will not exceed the limiting concentration even if the refrigerant gas leaks in the room. Checking procedure of limiting concentration Check limiting concentration along following steps and take appropriate measure depending on the situation. Calculate amount of all the replenished refrigerant (kg) per each refrigerant system. Amount of replenished refrigerant per one outdoor + unit system Amount of additional = Total amount of replenished replenished refrigerant refrigerant in refrigerant facility (kg) Amount of replenished refrigerant at factory shipment Amount of additionally replenished refrigerant depending on piping length or piping diameter at customer Note : In case one refrigerant facility is divided into 2 or more refrigerant systems and each system is independent, amount of replenished refrigerant of each system shall be adopted. Limiting concentration Limiting concentration is the limit of Freon gas concentration where immediate measures can be taken without hurting human body when refrigerant leaks in the air. The limiting concentration shall be described in the unit of kg/m3 (Freon gas weight per unit air volume) for facilitating calculation. Calculate minimum room capacity Calculate room capacity by regarding a portion as one room or the smaller room. - Without partition - With partition and with opening which serve as passage of air to adjoining room 3 Limiting concentration: 0.44kg/m (R410A) Outdoor unit Outdoor unit Outdoor unit (No.1 system) Flow of refrigerant Indoor unit Indoor unit Indoor unit Opening Room where refrigerant leaks (Refrigerant of the whole No.1 system flows out.) Partition In the case of opening without door , or 0.15 % or more openings (to floor space) both above and below door) 31 Outdoor unit INSTALLATION GUIDE AT THE SEASIDE ! CAUTION Indoor unit Smallest room Calculate refrigerant concentration Total amount of replenishedrefrigerant in refrigerant facility (kg) = Refrigerant concentration(kg/m3) Capacity of smallest room whereindoor unit is installed (m3) (R410A) - In case the result of calculation exceeds the limiting concentration, perform the same calculations by shifting to the second smallest, and the third smallest rooms until at last the result is below the limiting concentration. In case the concentration exceeds the limit When the concentration exceeds the limit, change original plan or take one of the countermeasures shown below: • Countermeasure 1 Provide opening for ventilation. Provide 0.15% or more opening to floor space both above and below door, or provide opening without door. • Countermeasure 2 Provide gas leak alarm linked with mechanical ventilator. Reducing the outdoor refrigerant qty. Countermeasure 2 • Air conditioners should not be installed in areas where corrosive gases, such as acid or alkaline gas, are produced. • Do not install the product where it could be exposed to sea wind (salty wind) directly. It can result corrosion on the product. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance. • If outdoor unit is installed close to the seaside, it should avoid direct exposure to the sea wind. Otherwise it needs additional anticorrosion treatment on the heat exchanger. Selecting the location(Outdoor Unit) If the outdoor unit is to be installed close to the seaside, direct exposure to the sea wind should be avoided. Install the outdoor unit on the opposite side of the sea wind direction. Sea wind Gas leak alarm Mechanical ventilator Sea wind Indoor unit In case, to install the outdoor unit on the seaside, set up a windbreak not to be exposed to the sea wind. Windbreak Countermeasure 1 Opening effective to ventilation Sea wind Pay a special attention to the place, such as a basement, etc. where refrigerant can stay, since refrigerant is heavier than air. - It should be strong enough like concrete to prevent the sea wind from the sea. - The height and width should be more than 150% of the outdoor unit. - It should be keep more than 70 cm of space between outdoor unit and the windbreak for easy air flow. Select a well-drained place. • Periodic ( more than once/year ) cleaning of the dust or salt particles stuck on the heat exchanger by using water ENGLISH - With partition and without opening which serve as passage of air to adjoining room 32 ENGLISH Model Designation Product information • Product Name : Air conditioner • Model Name : Product Sales Name Model Factory Name ARUx***LTy4 series x = N, B (Heat pump), V (Cooling only) y = S (Basic function), E (Additional function related to performance) *** = Numeric; (Cooling capacity) • Additional information : Serial number is refer to the bar code on the product. Airborne Noise Emission The A-weighted sound pressure emitted by this product is below 70 dB. ** The noise level can vary depending on the site. The figures quoted are emission level and are not necessarily safe working levels. Whilst there is a correlation between the emission and exposure levels, this cannot be used reliably to determine whether or not further precautions are required. Factor that influence the actual level of exposure of the workforce include the characteristics of the work room and the other sources of noise, i.e. the number of equipment and other adjacent processes and the length of time for which an operator exposed to the noise. Also, the permissible exposure level can vary from country to country. This information, however, will enable the user of the equipment to make a better evaluation of the hazard and risk. 33 ENGLISH 34 ENGLISH
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