hitachi split-unit air conditioner installation manual ti nurood ni safety
Contents
1. e The terminal cover and side cover must be installed after work is done A SAI HH Jj a ELG EELA e NNN ERRIN GAN AALL arg ug 7 Y SE a OA LISLE 2 Ly H 5 O Lf See SS Lie S Vite TNE WW WSs SS K S L f ne WN fa Mi l CONNECTION OF POWER CORD FINAL STAGE OF INSTALLATION Z Cord band A CAUTION IMPORTANT e Outdoor supply cords shall not be lighter than polychloroprene sheathed flexible cord with code designation 60245 IEC 57 16A time delay fuse lt E4340 A gt2. Tightening torque reference value 1 2 to 1 6 N m 12 to 16 kgf cm Excessive tightening may damage the interior of the cord requiring replacement CONNECTION OF POWER CORD Cap of valve hea D Connecting cord Le Connecting cord A d Cap of valve head NON QS x Sas Leea links eee Works to be done when transferring or removing air conditioner oid Please use gas leakage detector 60 it to check if leakage occurs at connection of Flare nut as shown rah on the right If gas leakage occurs further tighten the connection to stop leakage Be sure to use R410A detector N a OONC ii Ne When putting two connecting cords 18 From the viewpoint of global environment protection refrigerant EES ESF should be recovered pumped down when the air conditioner is WA HN 2 Insulating plate X through the band transferred or removed Cord band Screw Perform force cooling operation refer to Force cooling operation a 5 x gt O m o lt Q Z lt N Ti a A F Z lt l O O O LL O Z O lt l a U on page 12 for about 5 minutes as a preliminary operation Tighten the spindle of the service valve at small diameter side in clockwise direction Continue the force cooling operation for another 1 2 minutes and then tighten the spindle of the service valve at large diameter side in clockwise direction Stop the force cooling operation After
3. To install the bush put it on the drain hole as shown in the figure and press the both sides of the bush to fit into the hole After installation check whether the drain pipe and bush cling to the base firmly Cg RAIN HOLE DRAIN HOLE t TA Outer diameter 16 mm or more gt i 6 DRAIN PIPE Push Push block so that the unit is 100mm above the ground as shown figure Join the drain pipe to one hole e After installation check whether the drain pipe clings to the base firmly a Pipe Connection e Remove the flare nut from the pipe of the indoor unit by removing the flare nut female side with a spanner while holding down the half union male side with a spanner e Do not crush the pipe while bending it e Apply refrigerant oil on the connection part After carrying out the center alignment and manual tightening of the flare nut tighten the flare nut securely with a torque wrench spanner OUTDOOR UNIT Half union al y Flare nut S Wrench FP po Torque wrench Tightening torque must be as shown in the table below a a of p pe ia kgfecm Valve core cap See DRAIN HOLE as Outer diameter 16 mm or more 66 DRAIN PIPE e Install the outdoor unit horizontally and make sure that condensate drains away e In case of using in chilly area Especially in case that there are many snows by very cold in chilly area condensed water freezes on the base and may result not to drain In this case please remove the b
4. Plate INSTALLATION OF INDOOR UNIT Pi HORIZONTAL PIPING Preparation To Install Coolant Pipes CAUITON e Coolant pipes and power cord must be tied together e Please fix in the plastic a Change of Drain Hose and Installation Procedures e The front part of the coolant pipes are at locations core after flaring to avoid oll K e Exchange the location of drain hose and drain cap during horizontal piping as shown mbol plastic chips entering the esse se mor ie Mark bi fr in figure below Be sure to plug in the drain hose until the insulating material folds upon pipes than 4 screws itself e Please use pliers to pull out the drain cap Procedures of Installation and Precautions i This is an easier way to remove the drain cap e Procedures to fix the mounting plate 1 Drill holes on wall As shown below Please bend at a small radius to form an arc Installation Temporary stand Hang the indoor unit onto the mounting plate Use the temporary stand at the back of the indoor unit to push its lower part 15cm forwards Projection all INDOOR UNIT E a ee e Place the drain hose through the hole on the wall PA e Y e Insulate the connecting portion of coolant pipe with insulator Q Ve e Connect the power cord e After adjustment the power cord and coolant pipes are placed into the space available under the indoor unit e The projecti
5. fire or 1 stronger vibration may occur ee TE Ean Only RAC X13HAK allowed namely horizontally 2 e Be sure to use the specified piping set for R410A Otherwise this may result in broken copper pipes or faults perpendicujar bs ihe uni g e When installing or transferring an air conditioner to another location make sure that air other than the specified refrigerant R410A vertically down from right does not enter the refrigeration cycle If other air should enter the pressure level of the refrigeration cycle may increase abnormally 1 horizontally out from right and z which could result in a rupture and injury horizontally out to left E The refrigerating machine oil e Be sure to ventilate fully if a refrigerant gas leak while at work If the refrigerant gas comes into contact with fire a poisonous gas may occur Don t form the piping is easily affected by moisture e After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the Heat insulating materials downward at the left of the unit rie et Aaa water room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur lt 1 e Unauthorized modifications to the air conditioner may be dangerous If a breakdown occurs please call a qualified air conditioner The difference in height technician or electrician Improper repairs may result in water leakage electr
6. remove the screw and terminal cover and put the connecting cords and fix the terminal cover with screw A WARNING After wiring the indoor unit make sure to reattach the terminal cover e Wiring for the horizontal piping from the right side Method to remove the low cover al Insulation And Maintenance Of Pipe Connection 3 Power Source And Operation Test e The connected terminals should be completed sealed with heat insulator and then tied up with rubber strap Power Source A WARNING e Please tie the pipe and power line together with plastic tape as shown in the figure of installation of both the indoor and e Do not alter the plug of power cord Do not make extension to the power cord outdoor units Then fix their position with holders A CAUTION e To enchance the heat insulation and to prevent water condensation please cover the outdoor part of the drain hose acion A e Please use a new socket Accident may occur due to the a oe use of old socket because of poor contact and pipe with insulation pipe A ira N Ra e Please plug in and then remove the plug for 2 3 times e Completely seal any gap with putty ee WU This is to ensure that the plug is completely plugged into the socket e Keep additional length for the power cord and do not render 2 Earth Line And Circuit Breaker A CAUITON the plug under external force as this may cause poor contact e Do not fix the power cord with U shape nai
7. THE CHOICE OF MOUNTING SITE Please note the following matters and obtain permission from customer before installation A WARNING HITACHI e Carefully read through the procedures of proper installation before starting installation work e The sales agent should inform customers regarding the correct operation of installation The unit should be mounted at stable non vibratory location which can provide e The outdoor unit must be mounted at a location which can support heavy weight full support to the unit Otherwise noise and vibration will increase A amp caution ey Actin e No nearby heat source and no obstruction near the air outlet is allowed e Do not expose the unit under direct sunshine or rain Besides ventilation must be good e The clearance distances from top right and left are specified as lt gt in figure below and clear of obstruction e The location musteb convenient for water drainage and pipe connection e The air blown out of the unit should not point directly to animals or plants wiihetha cuidoor unit e The clearances of the unit from top left right and front are specified as lt gt in figure lt p Finaiallat a local hers thereat bl t tand below At least two sides must be clear for ventilation Oe ee ee ee e Be sure that the hot air blown out of the unit and noise do not disturb the neighbourhood smoke There is a risk of fire explosion deterioration of resin and or damage ie f e Place not exposed t
8. ap for the service valve at large diameter side Fully tighten the Hi shuttle of the manifold valve and completely unscrew the Lo shuttle Run the vacuum pump Adapter is switched on e After pumping for about 10 15 minutes completely loosen the Lo shuttle and switch off the vacuum pump Adapter is switched off Cap of valve core Loosen the spindle of the service valve with small diameter by 1 4 turn and tighten the spindle immediately after 5 to 6 seconds Remove the charging hose from the service valve Meter showing pressure Make sure the meter reaches 0 1MPa 76cmHg during pumping LT UO When pumping starts slightly loosen the flare nut to check if air sucked in Then tighten the flare nut KT Vacuum pump adapter Please leave the ball valve fully open at all times AIR REMOVAL Body of service valve Unscrew the spindle of both the Capt service valves in anticlockwise valve core direction to allow the flow of refrigerant unscrew halfway Tighten the cap of valve head Check and make sure that there is no gas leakage Wiring Of The Indoor Unit e For wire connection of the Indoor unit you need to remove the front cover the low cover under the body of the unit and terminal cover e Remove the cover from the terminal base and screw the cable Hexagonal wrench key Securely screw in the power cord and connecting cord so that it will not get loose or disconnect
9. ic shock and fire etc sec ch ae a e Be sure to connect the earth line from the power supply wire to the outdoor unit and between e A the outdoor and indoor unit Do not connect the earth line to the gas tube water pipe lighting rod or the earth line of the The connecting pipe no telephone unit Improper earthing may cause electric shocks Lia ie or Ta e When finishing the refrigerant collection pumping down stop the compressor and then remove the coolant pipe gst ep i i 3 ai M P i i with insulation pipe and If you remove the refrigerant pipe while the compressor is operating and the service valve is released air is sucked and a XK Items amp are included in the package of the outdoor unit then wrapped with plastic pressure in the freezing cycle system will build up steeply causing an explosion or injury aove Dum tape The insulator will e When installing the unit be sure to install the refrigerant pipe before starting the compressor Dimension of Mounting Stand Sorel re aes an i Pa of the outdoor unit wrapped with tape If the refrigerant pipe is not installed and the compressor is operated with the service valve released air is sucked and the a above 100mm pressure level of the refrigeration cycle may increase abnormally which could result in a rupture and injury Sol sK give clearance The connection of insulated otf F E gas wide as possible drain hose a D inner diameter 16mm HITACHI f Ag A CAUTION above 300
10. iping while holding down the lower portion completely sealed with putty pipe 2 Bethe part of the wall so as to of pipe support by hand You are free to choose the side left or right for the installation of drain to avoid dripping of rain prevent the possibility of S Pull up the pipe after hose Please ensure the smooth flow of condensed water of the indoor water into the room damaged by mouse EEE AEN CAUTION unit during installation Carelessness may result in water leakage lt E4340 A gt e Please mount the Outdoor unit of stable ground to prevent vibration and increase of noise level e Decide the location for piping after sorting out the different types of pipe available e When removing side cover please pull the handle after undoing the hook by pulling it downward Reinstall the side cover in the reverse order of the removal Please face this side suction side of the unit to the wall Please remove terminal cover when connecting the piping and connecting cord A CAUTION e Do not touch the suction port bottom surface or aluminum fin of the outdoor unit Failure to do so may cause an injury CONDENSED WATER DISPOSAL OF OUTDOOR UNIT e There is holes on the base of Outdoor unit for condensed water to exhaust e In order to flow condensed water to the drain the unit is installed on a stand or a e Please mount the Outdoor unit of stable ground to prevent vibration and increase of
11. l e The earth line terminal of the outdoor unit is below the service valve e To avoid short circuit it is necessary to install circuit breaker Operation Test depending on the mounting location of the unit e Please ensure that the air conditioner is in normal operating condition during the operation test e Do not place earth line near the following objects 1 Water pipe e Explain to your customer the proper operation procedures 2 Gas pipe There is danger of catching fire as described in the user s manual 3 The earth line of lightning conductor and telephone short circuit may occur during lightning Not to interfere with the drain hose fold the cable at the drain hose side of the electric box as shown in the left figure and pass the cable just over the electric box and pull it out e Pull at the mand Blin the directionsas shown by arrows to remove the cover Piping and drain hose layout Power Cable cord Pipe Form the cable properly so that the low cover won t touch the cable in installation Wiring of the Outdoor Unit Please remove the side cover and terminal cover for wiring connection Drain Power cord WY NN WI J A WARNING e The connecting cord must be fix with cord band Otherwise rain water may enter and cause short circuit Besides an external forcemay apply to the connection part of the connecting cord and could result in heat and fire
12. mm 4 Cae gt g above 200mm PATIS Please use insulated drain e A circuit breaker must be installed in the house distribution box for the direct connected power supply cables to the outdoor unit In case of other installations a main switch with a contact gap or more than 3mm has to be installed Without a circuit breaker the danger of electric shock exists BA above 700mm e Do not install the unit near a location where there is flammable gas The outdoor unit may catch fire ae ha hose for the indoor piping commercial product EIEL if flammable gas leaks around it e Please ensure smooth flow of water when installing the drain hose Improper installing may wet your funiture e An IEC approved power cord should be used 1 Installation of Mounting Plate Wall Penetration and Installation of Protection Pipe B Installation of the Indoor Unit INSTALLATION OF COOLANT PIPES AFTER CONNECTION A CAUITON VERTICALLY DOWNWARD PIPING e The coolant pipes should be adjusted to fit into the hole on the wall and then ready for further connection e The draining of the water container inside the indoor unit can be done from the left Preparation e The terminals of 2 connected pipes must be covered Drain hose with insulator used for terminal connection e Connect the power cord e After adjustment fit the power cord and pipes into Therefore the mounting plate must be fixed horizontally or slightly tilted toward
13. noise level e Decide the location for piping after sorting out the different types of pipe available e When removing side cover please pull the handle after undoing the hook by pulling it downward Reinstall the side cover in the reverse order of the removal Please face this side suction side of the unit to the wall Please remove side cover when connecting the piping and connecting cord STS ze L S33 SZ LZ A CAUTION e Do not touch the suction port bottom surface or aluminum fin of the outdoor RAC X13HAK unit Failure to do so may cause an injury CONDENSED WATER DISPOSAL OF OUTDOOR UNIT e There is holes on the base of Outdoor unit for condensed water to exhaust e in order to flow condensed water to the drain the unit is installed on a stand or a 1 Preparation of Pipe e Use a pipe cutter to cut the pipe and remove burr Trimming tool Copper ta A CAUTION e Remove burr If burr is not removed it may cause leakage e Point the side to be trimmed downwards during trimming to prevent copper chips from entering the pipe e Before flaring please put on the flare nut Copper pipe X Please use exclusive tool for refrigerant R410 Outer Diameter A mm Rigid Flaring Tool For R410A tool For R22 tool E 252 88 block so that the unit is 100mm above the ground as shown figure Join the drain pipe to one hole e Cover the drain hole with a bush
14. o strong wind Particularly on the rooftop of a building strong wind e To avoid interference from noise please place the unit and its remote pas blows and the outdoor unit may be damaged controller at least 1m from the radio and television e Do not install at a location where there is flammable gas steam oil and smoke e To avoid any error in signal transmission from the remote controller please put the e The location must be convenient for water drainage controller far away from high frequency machines and high power wireless systems e Place the outdoor unit and its connecting cord at least 1m away from the antenna or signal S AFETY z R EC AUTI O N e Lighting fixtures with electronic starters may shorten the reception distance and may line of television radio or telephone This is to avoid noise interference even interfere with the signal being received e Do not install the indoor unit in a place where small animals may build their nests e Read the safety precautions carefully before operating the unit e The installation height should be at least 2 3m or more from the floor If small animal goes inside the unit and touches the electrical parts failure of the unit e The contents of this section are vital to ensure safety Please pay special attention to the following sign HITACHI SPLIT UNIT AIR CONDITIONER INSTALLATION MANUAL Tools Needed For Installation Work mark is tool exclusive use for R410A Screwdriver Indoor Uni
15. on of indoor unit must hook to the mounting plate about 15cm 2 Fix the mounting plate on wall with 4 1 x 32 screw As shown in figure below Drain cap 7 D I Remove the cap for drain hose installation Heat insulation pipe Ceiling Pull this to the front during the connection of coolant pipes to ease task terminals of coolant pipes Mounting above 50mm j So Coolant pipes Screw _ Drain cap Drain hose Power cord Plug Please insert until here Please insert until here Wall WV Daa Nps 4 1 x 32 Screw Wall Penetration and Installation of Protection Pipe e Drill a 65mm hole on wall which is slightly tilted 7 HORIZONTAL amp DOWNWARD PIPING MAKING OPENINGS towards the outdoor side o A CAUITON Drill the wall at a small angle e Cut the protection pipe Be sure that the wire is not A CAUITON Be sure that the drain hose is not loosely connected e During horizontal or downward piping use a knife to cut openings as shown in figure Then smoothen the edges of openings with a file a H j St t are according to the wall in contact with any metal a or bent thickness in the wall Please use the l Openings Da tecti Pipe ie Bending Stagment e Empty gap in the sleeve of protection pipe as wire suppor upwards water passing through the hollow protection pipe should be bo Sleeve of e Transform the p
16. s Green Yellow 1 50Hz 1 6 or 92 0 Removal Of Air From The Pipe And Gas Leakage Inspection Green Yellow Strip wires Valve head cap for the service valve at small diameter side From the viewpoint of global environment protection air purge type should be vacuum pump method Remove the valve head cap of the service valve Remove the cap of valve core and connect the charge hose Connect the vacuum pump adapter to the vacuum pump and connect the charge hose to the adapter A WARNING e lf the supply cord is damaged it must be replaced by a special cord Maker s service parts available from the manufacturer or its service agent The naked part of the wire core should be 10mm fix it to the terminal tightly Then try to pull the individual wire to check if the contact is tight Improper insertion may burn the terminal Be sure to use only wire specified for the use of air conditioner Please refer to the manual for wire connection the wiring technique should meet the standard of the electrical installation Leave some space in the connecting cord for maintenance purpose and be sure to secure it with the cord band Secure the connecting cord along the coated part of the wire using the cord band Do not exert pressure on the wire as this may cause overheating or fire There is a AC voltege of 220V between the A and B terminals Therefore before servicing be sure to remove the plug from the AC outlet Valve head c
17. s the side of drain hose Otherwise condensed water may overflow the water container e Connect power cord e Pull out the pipe power cord and drain hose Power line pipe and i i la er a the space available under the indoor unit ees Direct Mounting On The Wall Installation ted together wh e Please use hidden beams in the wall to hold the mounting plate A GAUITON Eviernal diniensionot e The upper part of the indoor unit is hanged indoor unit on the mounting plate e The rubber strap used for a e The projection at the lower part of the indoor fixing the insulator should 125mm 816mm l gt 20mm 125mm unit is hooked onto the mounting plate not be tied with great force f 41mm 44mm onare Otherwise this will damage ol f 4 X Please pull the lower part heat insulation and causes SS 2 i wall nole Lift the body Mounting Of the indoor unit Bie X water condensation ri Mt af F 42mm Coolant pipe of the unit tae outwards to check if the TAF g Ea i a 45mm upwards and Projection unit is hooked onto the ip 265mm es 390mm hom 65mm SA then force mounting plate Improper Pipe Rubber strap tied with great force Diane lt 730mm py Drain Moge Pipe Drain Hose it downwards installation may cause POVERE vibration and noise THE CONNECTION OF COOLANT PIPE DURING THE Mounti
18. t Outdoor Unit e Measuring Tape Knife Saw Pipe Cutter e Hexagonal Wrench Key LO 4mm Power Drill 965 980mm RAC X10HAK e Vacuum Pump Pliers or Wrench Torque Wrench RAS X10HAK C O Vacuum Pump Adaptor Flare Tool Gas Leakage RAS X13HAK RAC X13HAK Detector Manifold Valve Charge Hose INDOOR UNIT OUTDOOR UNIT smoke or fire may be caused Request your customer to keep the surrounding of Names of Indoor Components the unit clean A WARNING Incorrect methods of installation may cause death or serious injury O This sign indicates prohibition The Length of indoor Unit TCS er A CAUTION Improper installation may result in serious consequence Power Cord JUTE SHOWANY Mig iiorananon Be sure that the unit operates in proper condition after installation Explain to customer the proper operation and maintenance of the unit of Indoor and Outdoor Unit as described in the user s guide Ask customers to keep this installation manual together with the instruction manual Mounting Plate about o_O 0 9m about 1 6m i above 50mm A of D K Do not alter the power cord Be sure to above 250 A WARNING Screw for Mounting Plate aE Sula aeaoe 100mm FT 7 f seal any Please request your sales agent or qualified technician to install your unit Water leakage short circuit or fire may occur if yo
19. u do the e 4 1x32 gap with ENY installation work yourself putty 5 S N a a a a L a RT a a L a a a Cut away shaded ge e Please observe the installation stated in the installation manual during the process of installation Improper installation may cause portion and finish 3 S water leakage electric shock and fire D seed oo e_s e Make sure that the units are mounted at locations which are able to provide full support to the weight of the units If not the units may ara neti 2 3 collapse and impose danger v c e Observe the rules and regulations of the electrical installation and the methods described in the installation manual when dealing Direction of Piping S Y EE with the electrical work Use cables which are approved official in your country Be sure to use the specified circuit A short circuit and fire may occur due to the use of low quality wire or improper work 1 R e Be sure to use the specified cables for connecting the indoor and outdoor units Please ensure that the connections are tight after the 7 Horizontally N p im perpendicular conductors of the wire are inserted into the terminals to prevent the external force is being applied to the connection section of the idaga to the uni SS terminal base Improper insertion and loose contact may cause over heating and fire We Connection a e Please use the specified components for installation work Otherwise the unit may collapse or water leakage electric shock
20. ush and the drain pipe at the bottom of unit Left and center near discharge portion of air each 1 place It becomes smooth drain Ensure that the distance from the drain hole to the ground is 250 mm or more e Install the outdoor unit horizontally and make sure that condensate drains away e In case of using in chilly area Especially in case that there are many snows by very cold in chilly area condensed water freezes on the base and may result not to drain In this case please remove the bush and the drain pipe at the bottom of unit Left and center near discharge portion of air each 1 place It becomes smooth drain Ensure that the distance from the drain hole to the ground is 250 mm or more INSTALLATION OF COOLANT PIPES AND AIR REMOVAL Procedures of Wiring Indoor Unit Detail of Cutting the Connecting Cord Indoor Unit A CAUTION e When removing flare nut of the indoor unit first remove the nut of small diameter side Otherwise the nut of big diameter side will fly out e Prevent water from entering into the piping when connecting e Be sure to tighten the flare nut to the specified torque with a torque wrench If the flare nut is overtightened it may split after sometime and may cause refrigerant leak e When using a control valve make sure that the packing is not deteriorated and avoid excessive tightening of the handle Otherwise gas may leak from the service valve Outdoor Unit 30mm 30mm Eo Strip wire
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