HS2V1 Inverter Series (18000,24000) Btu Installation Manual
Contents
1. consideration Outdoor unit More than 30cm If an awning is built over the outdoor unit to prevent direct sunlight or rain exposure Morethan 30cm S make sure that heat radiation from the condenser is not restricted Ensure thatthe clearance around the back of the unit is more than 30cm and left side is more than 30cm The front ofthe unit should have more than 200cm of clearance and the connection side right side should have more More than 2000m than 60cm of clearance Fig 2 Do not place animals and plants in the path ofthe airinlet or outlet Take the air conditioner weight into account and select a place where noise and vibration will notbe anissue Select a place so that the warm air and noise from the air conditioner do not disturb neighbors More than 60cm Rooftop installation If the outdoor unitis installed on a roof structure be sure to level the unit Ensure the roof structure and anchoring method are adequate for the unit location Consult local codes regarding rooftop mounting If the outdoor unitis installed on roof structures or external walls this may result in excessive noise and vibration and may also be classed as a non serviceable installation 7 INSTALLATION INSTRUCTIONS Tools needed for installation Level gauge Screwdriver Electric drill Hole core drill 665mm Flaring toolset Vacuum pump Gauge manifold Users manual Specified torque wrenches 1 8kgf m 4 2kgf m Thermometer2. cords conductors with PVC tape Process them so they do not touch any electrical or metal parts AA cautions Make sure to connect the indoor unit A B C D to the Hi and Lo valve and terminals of signal wires A B C D of outdoor unit as identified with theirrespective matched connection Wrong wiring connections may cause some electrical parts to malfunction Minimum norminal cross sectional area of conductors Rated current ofappliance Nominal cross sectional A area mm gt 3 and lt 6 0 75 gt 6 and lt 10 1 gt 10 and lt 16 1 5 gt 16 and lt 25 2 5 Terminal block of outdoor unit OPERE Li L2 LI 2 S PERDIDIDIDID o Po pet LIL2 S LiL2 TOA TOB Aaa aaa WAAAY fries ts U AIR PURGING CAUTION a After the confirmation of the above conditions prepare the wiring as follows 1 Never fail to have an individual power circuit specifically for the air conditioner As for the method of wiring be guided by the circuit diagram posted on the inside of control cover 2 The screw which fasten the wiring in the casing of electrical fittings are liable to come loose from vibrations to which the unit is subjected during the course
3. explanation purposes only The actual shape of your air condtioner may be slightly different e Copper lines must be insulated independently Loopa connective cable CAUTION e Use astud finder to locate studs to prevent unnecessary damage to the wall e A minimum piperun of 3 metres is required to minimise vibration amp excessive noise e TwooftheA B andC directions should be free from obstructions 7 INSTALLATION INSTRUCTIONS Indoor unit installation wall mounted type 1 Fitthe Installation Plate 1 Fitthe installation plate horizontally on structural parts of the wall with spaces around the installation plate 2 Ifthe wallis made of brick concrete or the like drilleight 8 5mm diameter holes inthe wall Insert Clip anchor for appropriate mounting screws 3 Fitthe installation plate on the wall with eight 8 type A screws Note Fit the Installation Plate and drill holes inthe wall according to the wall structure and corresponding mounting points on the installation plate The Installation Plate may be slightly different according tothe different models of indoor unit Dimensions arein mm unless otherwise stated 2 Drill a hole in the wall 1 Determine hole positions according to the diagramdetailed in Fig 5 Drill one 1 hole 665mm slanting slightly to outdoor side 2 Always use wall hole conduit when drilling metal grid metal plate or th
4. grounding is not perfect 2 Do not install the unit at place where leakage of flammable gas may occur In case gas leaks and accumulates at surrounding of the unit it may cause fire 3 Carry out drainage piping as mentioned in installation instructions If drainage is not perfect water may enter the room and damage the furniture J INSTALLATION INSTRUCTIONS 1 Wall mounted type Selecting installation place Read completely then followstep by step More than 15cm Indoor unit e Do notexpose the indoor unitto heator steam More than 120m More than 426m e Select aplace where there are no obstacles em in frontor around the unit E e Make sure that condensation drainage can be conveniently routed away AON Do notinstall near a doorway Ensure thatthe space on the left and right Fig 1 of the unit is more than 12cm Use a stud finder to locate studs to prevent unnecessary damage to the wall The indoor unit should be installed on the wall ata height of 2 4 metres or more from the floor The indoor unit should be installed allowing a minimum clearance of 15cm from the ceiling Any variations in pipe length will may require adjustment to refrigerant charge There should not be any direct sunlight Otherwise the sun will fade the plastic cabinet and affect its appearance If unavoidable sunlight prevention should be taken into
5. into water Fig 7 5 7mm Q 2 When connecting extension drain hose insulate the connecting part of extension drain hose with a shield pipe do not let the drain hose slack Connective pipe installation 1 For the left hand and right hand piping remove the pipe cover from the side panel 2 For the rear right hand and rear left hand piping install the piping as shown in Fig 9 and Fig 10 3 Fix the end of the connective pipe Refer to Tightening Connection in REFRIGERANT PIPING CONNECTION 4 Piping and wrapping Bundle the tubing connecting cable and drain hose with tape securely evenly as shown in Fig 11 e Because the condensed water from rear of the indoor unit is gathered in ponding box and is piped out of room Do not put anything else in the box CAUTION e Connect the indoor unit first then the outdoor unit e Do not allow the pipi to let out from the back of the indoor untt e Be careful not to let the drain hoe slack e Heat insulated both of the auxiliary piping e Be sure that the drain hos is located at the lowest side of the burdle Locating at the upper side can cawe drain pan to overflow inside the unit Never intercross nor intertwist the power wire with any other wiring e Run the drain hose sloped downward to drain out the condensed water smoothly INSTALLATION INSTRUCTIONS Shield
6. l Bo a 760x590x285 530 290 so Lge 845x700x320 560 335 J Air outlet 900x860x315 590 333 Fig 45 990x965x345 624 366 REFRIGERANT PIPE CONNECTION Drain joint installation Fit the seal into the drain elbow then insert the drain joint into the base pan hole of outdoor unit rotate 90 to securely assemble them Connecting the drain joint with an extension drain hose Locally purchased in case of the water draining off the outdoor unit during the heating mode Refrigerant pipe connection 1 Flaring work Main cause for refrigerant leakage is due to defect in the flaring work Carry out correct flaring work using the following procedure A Cut the pipes and the cable 1 Use the piping kit accessory or pipes purchased locally 2 Measure the distance between the indoor and the outdoor unit 3 Cut the pipes a little longer than the measured distance 4 Cut the cable 1 5m longer than the pipe length B Burr removal Completely remove allburrs fromthe cut cross section of pipe tube 2 Putthe end of the copper tube pipeina downward direction as you remove burrsin order to avoid dropping burrs into the tubing C Putting nut on Remove flare nuts attached to indoor and outdoor unit then put them on pipe tube having completed burr removal not possible to put them on after flaring work Base pan hole of outdoor unit ae Drain pipe Seal Drain joint ab Fig 46 lt
7. pipe Wall HW Sea A Extension drainhose Drain hose Fig 8 Rear right pipin Right hand piping Rear left piping Left hand piping Fig 9 Fig 10 Indoor unit Ponding box Pipe room k Connective pipe Wrapping belt Drain hose INSTALLATION INSTRUCTIONS 4 Indoor unit installation 1 Pass the piping through the hole in the wall 2 Put the upper claw at the back of the indoor unit on the upper hook of the installation plate move the indoor unit from side to side to see that it is securely hooked see Fig 12 3 Piping can easily be made by lifting the indoor unit with a cushioning material between the indoor unit and the wall Get it out after finish piping 4 Push the lower part of the indoor unit up on the wall then move the indoor unit from side to side up and down to check if it is hooked securely Number of connected Indoor units that can units 1 4units be used in combina tion Total of indoor units class KW Max 60m Max 40m Total length for all rooms j Max 15m Max 10m Length for one indoor unit R410A Difference in height Wnenabove outdoor Max 10m between indoor and Wren ba q utdoor units en below outdoor i unit A Max 10m Difference in height between indoor units Maxsm e 6 min or more 1 cycle time from stop to stop or from start to start within 10 of rated voltage Power source i within 15 voltage of rated voltage within 3 of rated voltage st
8. 0451 BPV4 T3 202000192433
9. 5 5kgf m 6 6kgf m different depending on model No Multimeter Spanner half union Pipe cutter Hexagonal wrench 4mm Gas leak detector Measuring tape Accessories Number Name of Accessories Q ty one unit 1 Installation Plate 1 f 5 8 2 Plastic Expansion Sheath depending on models 5 8 3 Self tapping Screw AST3 9X25 depending on models Liquid side P 6 35 Parts you must purchase 4 Connecting l Consult the technician pipe 9 53 for the proper size Assembly Gas side P 12 7 5 Remote controller 1 6 Self tapping Screw B ST2 9X10 Optional 2 7 Remote controller holder parts 1 8 Seal for cooling amp heating models only 1 9 Drain Joint for cooling amp heating models only 1 10 Transfer connector Packed with the indoor unit 4 4 NOTE Pipe size differ from appliance to appliance on some models To meet different pipe size requirement sometimes the pipe connections need the transfer connector to install on the outdoor unit 11 Indoor outdoor unitsignal wire 1 Note Except the above parts provided the other parts needed during installation you must purchase O INSTALLATION INSTRUCTIONS controller More than 60cm ne One Two t One Three More i Ocm than One Four SS I Ag amp S SS l REN Ss a cautions TARS Pe X B A ik Hil e This illustration is for
10. Before using your air conditioner please read this manual carefully and keep it for future reference INVERTER ONE TWO ONE THREE ONE FOUR SPLIT TYPE ROOM AIR CONDITIONER Dee Tee Please read this installation manual completely before installing the product If the power cord is damaged replacement work shall be performed by authorised personnel only Installation work must be performed in accordance with the national wiring Standards by authorised personnel only Contact an authorised service technician for repair maintenance or installation of this unit CONTENTS SAFETY PRECAUTIONS Warning acisini a tac iasaaiandeeen a nacnwndedsaneamansadeduajes muna acads qaneencaadaadsaeaeecacaadbacnnendai as 2 CAO seer sciants cde enabl Seuesnccechel aaabbalandl senna sannanhusdeadasneanbeeen saiuehidauedactidehicndhwhlaaadd Mieeedabawhls deen stebateecabanes 2 INSTALLATION INSTRUCTIONS selecting installation PlaCe eeii tee cegehia dtd debe eeiateebe ede deed ade eaeeeeeteade 3 Wall mounted type sc cccctiecipeietenaiiieciennadieeeiienireceieieenee steed annie senna EEEE NA 3 ACCESSOS pari UF prene ENDERNE EErEE RERNE EREI ERRET EARE ERAEN Geeks sb vadet dane seecasaehassaadalne xe nano 4 Fourway Cassete DPE noreo E E 9 Duct amp CemninG pE ores aTi Ea ATASE E TEE ATN ATE 12 Ceiling and Floor type 0 nr nn KEEN nn nn ee nn inert NEANKE ENAN ANEAN E 16 Floor and Standing typ e Console 2 3 2sceccssctassece
11. age check Electrical safety check Perform the electric safe check after completing installation 1 Insulated resistance The insulated resistance must be more than 2MQ 2 Grounding work After finishing grounding work measure the grounding resistance by visual detection and grounding resistance tester Make sure the grounding resistance is less than 4 3 Electrical leakage check performing during test running During test operation after finishing installation the serviceman can use the electroprobe and multimeter to perform the electrical leakage check Turn off the unit immediately if leakage happens Check and find out the solution ways till the unit operate properly Gas leak check 1 Soap water method Apply a soap water ora liquid neutral detergent on the indoor unit connection or outdoor unit connections by asoft brush to check forleakage ofthe connecting points of th piping If bubbles come out the pipes have leakage 2 Leak detector Use the leak detector to check for leakage CAUTION A Lo packed valve B Hi packed valve C and D are ends of indoor unit connection NOTE The illustration is for explanation purpose only The actual orderof A B C and Don the machine may be slightly different from the unit you purchased The actual shape shall prevail Indoor unit check point Outdoor unit __ check point a b c d h i j kare points for one two type a b c d e f h i j k m n are points for o
12. attached Electrical Connection Diagram located on the panel of the outdoor unit to connect the wire 6 All wiring must comply with local and national electrical codes and be installed by qualified and skilled electricians 7 An individual branch circuit and single receptacle used only for this air conditioner must be available 1 ELECTRICAL WORK Wiring connection NOTE Before performing any electrical work turn off the main power to the system cautions e Do nottouch the capacitor even if you have disconnected the power for thereis still high voltage power on it or electric shock hazard may occur For your safety you should start repairing at least 5 minutes later after the poweris disconnected The poweris supplied from the Outdoor Unit The four Indoor Unit are connected with asignal wires or powercords are connected reliably and correctly or the air conditioner could notrun normally Connect the cable to the outdoor unit 1 Remove the electrical control board cover from the outdoor unit by loosening the screw as shown in Fig 51 2 Connect the connective cables to the terminals as identified with their respective matched numbers on the terminal block of indoor and outdoor units 3 Secure the cable onto the control board with the cord clamp 4 To prevent the ingress of water from a loop of the connective cable as illustrated in the installation diagram of indoor and outdoor units 5 Insulate unused
13. ble to withstand the set s weight If the strength is not enough or installation is not properly done the set will drop and cause injury 5 For electrical work follow the local national wiring standard regulation and this installation instructions An independent circuit and single outlet must be used If electrical circuit capacity is not enough or defect found in electrical work it will cause electrical shock fire 6 Use the specified cable and connect tightly and clamp the cable so that no external force will be acted on the terminal If connection or fixing is not perfect it will cause heat up or fire at the connection 7 Wiring routing must be properly arranged so that control board cover is fixed properly If control board cover is not fixed perfectly it will cause heat up at connection point of terminal fire or electrical shock 8 When carrying out piping connection take care not to let air substances other than the specified refrigerant go into refrigeration cycle Otherwise it will cause lower capacity abnormal high pressure in the refrigeration cycle explosion and injury 9 Do not modify the length of the power supply cord or use of extension cord and do not share the S single outlet with other electrical appliances Otherwise it will cause fire or electrical shock CAUTION 1 This equipment must be earthed and installed with earth leakage current breaker It may cause electrical shock if
14. connection to the vacuum pump 3 Fully open the handle Lo of the manifold valve 4 Operate the vacuum pump to evacuate After starting evacuation slightly loose theflare nut of the Lo valve on the gas pipe side and check that the air is entering Operation noise of the vacuum pump changes and a compound meter indicates 0 instead of minus 5 After the evacuation is complete fully close the handle Lo of the manifold valve and stop the operation of the vacuum pump Make evacuation for 15 minutes or more and check that the compound meter indicates 76cmHg 1x10 Pa 6 Turn the stem of the packed valve B about 45 counterclockwise for 6 7 seconds after the gas coming out then tighten the flare nut again Make sure the pressure display in the pressure indicator is a little higher than the atmosphere pressure 7 Remove the charge hose from the Low pressure charge hose 8 Fully open the packed valve stems B and A 9 Securely tighten the cap of the packed valve Refrigerant Outdoor Indoor unit unit Gas side e o gt Liquid side_ D DI B Packed valve Half union Fig 58 Flare nut Stopper Cap TO Valve body QD Valve stem Fig 59 Manifold valve Compound meter Pressure gauge Q 76cmHg lt 0 Handle Lo Handle Hi Charge hose gt 7 Charge hose Pa Vacuum pump Low pressure valve Fig 60 7 AIR PURGING Safety and leak
15. csacuisinenceseccusastevececcadaweeceveaciauaeneneaccaaaseeccaeneeaaieeees 19 Outdoor unit WiStallatlOn aa vavasnccetondaduangeasss E bagelncnandaangeeendvanabaceatodinagended 23 REFRIGERANT PIPE CONNECTION Refrigerant pipe CONNECTION simieca nnna cee eee eee eee eee eee eee cae oia inr Ea a E EETAS EAEE aa TAA 24 ELECTRICAL WORK Electrical WORK aarus catciatedtt a A scene uadosavegenadutseaaneant alice Veageiad dees T E ntanerctdeaevadeats 25 AIR PURGING Air purging with VACUUM PUMP dfscncetsavecestdveshevcstiesauescsscarheeiaryedendeaganaeedanveeaenteeddaadleaaeeeisdemeaencey es 27 Safety and leakage check eee teeter eee eee e ert e een eee eee eeeaaaneeeeeeeeeaaaeeeeeseeeaaaeneeees 29 TEST RUNNING TeS UNNNG aictsssets tctectecme eadeadeoannnenaze A cee asaeee says beaens denady daceteetiadieecd 30 Read This Manual Inside you will find many helpful hints on how to install and test the air conditioner properly All the illustrations and specifications in the manual are subject to change without prior notice for product improvement The actual shape should prevail CAUTION Contact an authorised service technician for repair or maintenance of this unit Contact an authorised installer for installation of this unit The air conditioner is not intended for use by young children or infirmed persons without supervision Young children should be supervised to ensure that they do not play with the air conditioner If the
16. e like 3 Connective Pipe and Drainage Installation Drainage 1 Run the drain hose sloping downward Do not install the drain hose as illustrated in Fig 7 Correct orientation of Installation Plate OES VA x x Fig 4 t 150mm or more to ceiling Indoor unit outline c _ Installation plate D 120mm or JE 120mm or more to wall more to wall Left id y SrL EAr SIQE y Right rear side refrigerant es i Te bes No telat ao A Model A A 710 B 250 C 100 D 110 Model B A 790 B 265 C 100 D 150 T 150mm or more to ceiling Indoor unit outline c Installation plate D 120mm or 120mm or more to wall more to wall ___ a amp Left rear side g Right rear side refrigerant oT refrigerant pipe hole 65 7 pipe hole 65 i Model A A 710 B 250 C 100 D 110 Model B A 790 B 275 C 100 D 85 Model C A 850 B 290 C 100 D 115 T 150mm or more to ceiling Indoor unit outline 150 Installation plate 190 I 120mm or more to wall ea wall i gt SD V Right rear side Fe refrigerant pipe hole 65 Left rear side refrigerant SAR Xe ipe hole 65 a ea 918 Model A A 920 B 293 C 150 D 185 Model B A 995 B 293 C 150 D 200 Model C A 850 B 305 C 150 D 145 Fig 5 Wall Indoor L Outdoor Do not put the end of Do not block water flow by a rise drain hose
17. iquid and gas side tubes between the indoor and outdoor units have been properly connected and all wiring forthe test run has been completed Remove the service valve caps from both the gas and the liquid side on the outdoor unit Note that both the liquid and the gas side service valves onthe outdoor unit are kept closed at this stage Pipe lengthand refrigerant amount Connective Air purging pipe length method Additional amount of refrigerant to be charged Use vacuum Less than 5m pump Use vacuum R22 Pipe length 5m x30g m More than 5m pump R410A Pipe length 5m x15g m R407c Pipe length 5m x30g m 7 AIR PURGING When relocate the unit to another place perform evacuation using vacuum pump Make sure the refrigerant added into the air conditioner is liquid form in any case Not applicable to the units adopt freon R22 Caution in handling the packed valve Open the valve stem until it hits against the stopper Do not try to open it further e Securely tighten the valve stem cap with a spanner or the like Valve stem cap tightening torque See Tightening torque table in previous page When Using the Vacuum Pump For method of using a manifold valve refer to its operation manual 1 Completely tighten the flare nuts A B C D connect the manifold valve charge hose to a charge port of the low pressure valve on the gas pipe side 2 Connect the charge hose
18. ne three type Fig 61 Indoor unit check point Outdoor unit check point One four type Fig 62 TEST RUNNING Test running Perform testoperation after completing gas leak check at the flare nut connections and electrical safety check e Check that all tubing and wiring have been properly connected Check that the gas and liquid side service valves are fully open 1 2 3 Connect the power press the ON OFF button on the remote controller to turn the unit on Use the MODE button to select COOL HEAT AUTO and FAN to check if all the functions works well When the amient temperature is too low lower than 17 C the unit cannot be controlled by the remote controller torun at cooling mode manual operation can be taken Manual operation is used only when the remote controlleris disable or maintenance necessary Hold the panel sides and liftthe panel up to an angle until it remains fixed with aclicking sound Press the Manual control button to select the AUTO or COOL the unit will operate under Forced AUTO or COOL mode see User Manual for details Thetest operation should last about 30 minutes t 4 TIN i Manual control a O AUTO COOL Manual control Button Fig 63 The design and specifications are subject to change without prior notice for product improvement Consult with the sales agency or manufacturer for details CS
19. of transportation Check them and make sure that they are all tightly fastened If they are loose it could cause burn out of the wires 3 Specification of power source 4 Confirm that electrical capacity is sufficient 5 See to that the starting voltage is maintained at more than 90 percent of the rated voltage marked on the name plate 6 Confirm that the cable thickness is as specified in the power source specification 7 Always install an earth leakage circuit breaker in a wet or moist area 8 The following would be caused by voltage drop Vibration of a magnetic switch which will damage the contact point fuse breaking disturbance of the normal function of the overload 9 The means for disconnection from a power supply shall be incorporated in the fixed wiring and have an air gap contact separation of at least 3mm in each active phase conductors Air purging Air and moisture in the refrigerant system have undesirable effects as indicated below Pressure inthe system rises Operating currentrises Cooling or heating efficiency drops Moisture in the refrigerant circuit may freeze and block capillary tubing Water maylead to corrosion of parts inthe refrigeration system Therefore the indoor unit and tubing between the indoor and outdoor unit must be leak tested and evacuated to remove any noncondensables and moisture from the system Air purging with vacuum pump Preparation Check that each tube both l
20. op start frequency Voltage fluctuation Interval unbalance Upper hook Floating prevention suppo Cushion material Low hook Fig 12 INSTALLATION INSTRUCTIONS Outdoor unit installation Outdoor installation precaution Install the outdoor unit on a rigid base to prevent increasing noise level and vibration e Determine the air outlet direction where the discharged air is not blocked In the case that the installation place is exposed to strong wind such as a seaside make sure the fan operating properly by putting the unit lengthwise along the wall or using a dust or shield plates e Specially in windy area install the unit to prev ent the admission of wind If need suspending installation the installation bracket should accord with technique requirement in the installation bracket diagram e The installation wall should be solid brick concrete or the same intensity construction or actions to reinforce damping supporting should be taken The connection between bracket and wall bracket and the air conditioner should be firm stable and reliable e Be sure there is no obstacle which block radiating air Settlement of outdoor unit Anchor the outdoor unit with a bolt and nut 610 or 08 tightly and horizontally on a concrete or rigid mount Outdoorunit dimension Mountingdimensions Fi V TVE Fe mm WxHxD A mm B mm E _
21. power cord is to be replaced replacement work shall be performed by authorised personnel only Installation work must be performed in accordance with the national wiring Standards by authorised personnel only SAFETY PRECAUTIONS Read the follow SAFETY PRECAUTIONS carefully before installation Electrical work must be installed by a licensed electrician Be sure to use the correct rating of the power plugand main circuit for the model to be installed e Incorrect installation due to ignoring of the instruction will cause harm or damage m The seriousness is classified by the following indications A WARNING This symbol indicates the possibility of death or serious injury LA CAUTION This symbol indicates the possibility of injury or damage to property J m The items to be followed are classified by the symbols Symbol with background white denotes item that is PROHIBITED from doing WARNING 1 Engage dealer or specialist for installation If installation done by the user is defective it will cause water leakage electrical shock fire 2 Install according to this installation instructions strictly If installation is defective it will cause water leakage electrical shock fire 3 Use the attached accessories parts and specified parts for installation otherwise it will cause the set to fall water leakage electrical shock fire 4 Install at a strong and firm location which is a
22. xX Q K A y gt Oblique Roughness Burr Fig 47 Reamer Point down Fig 48 Flare nut Copper tube Fig 49 ELECTRICAL WORK D Flaring work Firmly hold copper pipein adie inthe dimension shown in the table below Handle Outer diam A mm mm Max Min Cone b 6 35 1 3 0 7 Copper pipe b 9 53 1 6 1 0 Gene adc 127 18 10 Red arrow mark Fig 50 Tightening Connection KI AAA N E o e Align the center of the pipes Ind f it tubi Ja a Pi f e Sufficiently tighten the flare pen A E ee nut with fingers and then tighten it with a spanner and torque wrench Fig 51 as shown in Fig 51 amp 52 Sui e E 06 35 153eg cm ie3kgtcm Vaf 9 52 258kgt om 265kgt cm fi 612 7 357g cm 367kgh cm z Caution Fig 52 Excessive torque can break nut depending on installation conditions Electrical work Electric safety regulations for the initial Installation 1 If there is serious safety problem about the power supply the technicians should refuse to install the air conditioner and explain to the client until the problem is solved 2 Power voltage should be in the range of 90 110 of rated voltage 3 The creepage protector and main power switch with a 1 5 times capacity of Max Current of the unit should be installed in power circuit 4 Ensure the air conditioner is grounded well 5 According to the
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