INS RAK-25-35-50QXA (EN).indd - Hitachi Air Conditioning Products
Contents
1. pressure in the refrigeration cycle may become abnormally high so that a rupture may be caused 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 e After completion of installation work check to make sure that there is no refrigeration gas leakage If the refrigerant gas leaks into the room coming into contact with fire in the fan driven heater space heater etc a poisonous gas may occur e Unauthorized modifications to the air conditioner may be dangerous If a breakdown occurs please call a qualified air conditioner technician or electrician Improper repairs may result in water leakage electric shock and fire etc Maximum pipe length Refer to outdoor Installation Manual A CAUTION A circuit breaker or fuse 16A time delay must be installed Without a circuit breaker or fuse the danger of electric shock exists A main switch with a contact gap of more than 3mm has to be installed in the power supply line to the outdoor unit The connection of insulated drain hose The indoor piping should inner diameter 16mm be insulated with the R enclosed insulation pipe If the insulator is insufficient Please use insulated drain hose for please use commersial the indoor piping commercial product The connecting pipe no matter big or small should all be insulated with insul2. is required e To install the wiring the electrical box cover must be opened e Connect the connector of RAC adapter to CN7 m as Oo Oo xX Ww O oO LL e Z O S mr Z Oo Oo IMPORTANT Cable length Wire cross section Paonia cid Arne WIRED REMOTE CONTROLLER up to 6m 1 5mm connecting Cords aha fix For all optional part please refer catalog for part number 2 Connection to the electrical box up to 15m 2 5mm e Remove the cover of electrical box up to 25m 4 0mm e Connect the connector of wired remote controller to CN9 e Assemble back the cover of electrical box e Please refer to the respective user manual of wired remote controller for further details e Please be careful not to damage lead wires by edge of plate when connecting the optional parts 1 Insulation And Maintenance Of Pipe Connection How to Remove The Front Cover How to Attach the Front Cover e The connected terminals should be completely sealed with heat insulator and then tied up with rubber 1 Remove the front panel Check that the drain pan is securely attached strap e Please tie the pipe and power line together with vinyl tape as shown in the figure showing the installation After installing the front cover onto the unit hook three of Indoor and Outdoor units Then fix their position with holders A L claws at upper side of the cover securely Then push e To enchance the
3. of poor contact Mir if main body until you e Please plug in and then remove the plug for 2 3 times This is to ensure that the plug is completely l Sa yy ie hear a clicking sound plugged into the socket f e Keep additional length for the power cord and do not render the plug under external force as this may cause poor contact 2 e Do not fix the power cord with U shape nail tr ae Terminal cover FINAL STAGE OF INSTALLATION lt 1A1008 gt
4. temporary stand at the back of the Indoor unit to push its lower part 15cm forwards e Place the drain hose through the hole on the wall e Wrap the refrigerating pipes with insulation pipe after connecting refrigerating pipe e Connect the connecting cord after removing electrical cover Refer to Connection of Power Cord e After adjustment the connecting cord and refrigerating pipes are placed into the space available under the Indoor unit e The projection of Indoor unit must hook to the mounting plate Plug Projection E Z 5 oc e Oo Q zZ e Please use pliers to pull out the drain cap This is an easier way to remove the drain cap gt Vy KA about 15cm Wall Remote Control Holder Drain cap Drain hose Wall Penetration and Installation of Protection Pipe e Drill a 65mm hole on S ESk f wall which is slightly tilted Indoor Qutdoot A WARNING A CAUTION Condensed water may leak out i inserted properly towards the outdoor side NS Be sure that the wire is not S Drill the wall at a small a z rar in contact with any metal Horizontal amp Downward Piping Making Openings the Il Please use in wal a u e During horizontal or downward piping use a knife to cut Heat insulation pipe Pull this to the front during the connection of refrigerating pipes to ease task Screw Plug Protec
5. A RAK 50QXA Indoor Unit HFC N8405 SAFETY PRECAUTION e Read the safety precautions carefully before operating the unit e The contents of this section are vital to ensure safety Please pay special attention to the following sign A WARNING A CAUTION Names of Indoor Components Direction of Piping The Length of Indoor Unit Connecting Cord Item There are 6 directions allowed namely horizontally perpendicular to the unit vertically down from right horizontally out from right and horizontally out to left Don t form the piping downward at the left of the unit Horizontally perpendicular Mounting plate Incorrect methods of installation may cause death or serious injury ae X c onnection Improper installation may result in serious consequence Screw for Mounting plate gm Be sure that the unit operates in proper condition after installation Explain to customer the proper way of operating the unit as described in the user s guide A CAUTION 4 1x32 The installation height of indoor unit must be 2 3m or more Remote Controller holder A WARNING e Please request your sales agent or qualified technician to install your unit Water leakage short circuit or fire may occur if you do the installation work yourself e Please observe the instructions stated in the installation manual during the process of installation Im
6. THE CHOICE OF MOUNTING SITE Please note the following matters and obtain permission from customer before installation A WARNING e The unit should be mounted at stable non vibratory location which can provide full support to the unit FOR SERVICE PERSONNEL ONLY HITACHI SPLIT UNIT AIR CONDITIONER INSTALLATION MANUAL 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 A CAUTION e No nearby heat source and no obstruction near the air outlet is allowed e The clearance distances from top right and left are specified in figure below e The location must be convenient for water drainage and pipe connection with the Outdoor unit e To avoid interference from noise please place the unit and its remote controller at least 1m from the radio television and inverter type fluorescent lamp e To avoid any error in signal transmission from the remote controller please put the controller far away from high frequency machines and high power wireless systems e The installation height of indoor unit must be 2 3m Tools Needed For Installation Work e Screwdriver e Measuring Tape e Knife e Saw 65mm Power Drill e Hexagonal Wrench Key IO 4mm e Wrench 14 17 22 26 27mm e Gas Leakage Detector Pipe Cutter e Putty e Vinyl Tape e Pliers e Flare Tool INDOOR UNIT RAK 25QXA RAK 35QX
7. Then the claws are released from the stationary plate The PUSH sections are indicated by 2 arrows in the right figure A CAUTION __ e Please fix in the plastic core after flaring to avoid plastic chips entering the pipes Screw for Mounting Plate e The refrigerating pipes and connecting cord transform and are attached e The end of the refrigerating pipes are at locations marked with V symbol Please use more than 4 screws Hole for pipe Push mark positions Procedures of Installation and Precautions e Procedures to fix the mounting plate 1 Drill holes on wall 2 Push plug into the holes As shown below As shown below 3 Fix the mounting plate on wall with 4 1 x 32 screw As shown in figure below HORIZONTAL PIPING Change of Drain Hose and Installation Procedures e Exchange the location of drain hose and drain cap during horizontal piping as shown in figure below Be sure to plug in the drain hose until the insulating material folds upon itself Please bend at a small radius to form an arc Ceiling Mounting plate Screw p ag Wall YY a 4 1 x 32 Screw e Procedures to fix the holder of remote control ii 1 Drill holes on wall 2 Push plug into the holes As shown below As shown below above 50mm Installation Hang the Indoor unit onto the mounting plate Use the
8. are securely After opening the front panel by both hands inserted close the panel Undo the right arm while pushing it inside in the direction Slide the front panel to right as shown in figure Then remove while transmission is weaken by the fluorescent light z ulling it to front A x as shown in the pulling Therefore during the installation of the remote figure until it Open the electrical cover Disconnect the wire connector control holder please switch on the light even 3 Remote A i K A hooks at the lower Controll during day time to determine the mounting location end of the remote Ontroller Remove the filters of the holder Holder controller holder i After removing two screws pull the center of the front cover towards 7 Screw 2 pieces Operation Test Ss A you and release the claws e Please ensure that the air conditioner is in normal operating condition during the operation test Pull the side faces lower sections of the front cover towards you e Explain to your customer the proper operation procedures as described in the user s manual as shown in the figure and remove the cover 3 Power Source And Operation Test Disconnect the wire connector i g A Slide the front panel Power Source x Firmly insert the front locking mechanisms panel arms by sliding left and right into the A A CAUTION ia poe uae slots located at the e Please use a new socket Accident may occur due to the use of old socket because
9. ation pipe and then wrapped with vinyl tape The insulator will deteriorate if it is not wrapped with tape Do not install the unit near a location where there is flammable gas The outdoor unit may catch fire if flammable gas leaks around it e Please ensure smooth flow of water when installing the drain hose Piping shall be suitable supported with a maximum spacing of 1m between the supports 2 Installation of Mounting Plate Wall Penetration and Installation of Protection A CAUTION e draining of the water container inside the indoor unit can be done from the Therefore the mounting plate must be fixed horizontally or slightly tilted towards the side of drain hose Otherwise condensed water may overflow the water container products INSTALLATION OF REFRIGERATING PIPES AFTER CONNECTION e The refrigerating pipes should be adjusted to fit into the hole on the wall and then ready for further connection e The terminals of 2 connected pipes must be covered with insulator used for terminal connection Then the pipes are wrapped with insulation pipe e Connect the connecting cord after removing electrical cover Refer to CONNECTION OF POWER CORD e After adjustment fit the connecting cord and pipes into the space available under the indoor unit Use holder to hold them tight VERTICALLY DOWNWARD PIPING e Connect connecting cord e Pull out the pipe connecting cord and drain hose I
10. e nut as shown on the right N 9 52 3 8 0 8 0 0 0 5 1 0 1 5 1 5 2 0 If gas leakage occurs further tighten the connection to stop 12 70 1 2 0 8 0 0 0 5 1 0 1 5 1 5 2 5 leakage Use the detector provided for R410A 15 88 5 8 1 0 0 0 0 5 1 0 1 5 1 5 2 5 Cap of valve head INSTALLATION OF REFRIGERATING PIPES AND AIR REMOVAL A WARNING THIS APPLIANCE MUST BE Wiring Of The Indoor Unit As How To Connect The Optional Parts EARTHED e For wire connection oO e indoor unit you nee Oo RAC Adapter Wired Remote Control C remove front panel and electrical cover Power supply shall be connected at the rated voltage otherwise the Method to SINONG front panel unit will be broken or could not reach the specified capacity e Refer to FINAL STAGE OF INSTALLATION How to Remove The Front Cover Procedures of Wiring A In case that power is supplied from Indoor Unit Method to remove the low cover RAC Adapter Indoor Unit e Pull the cover at 1 and 2 in the directions as Wired remote controller shown by arrows to remove the cover 30mm 10mm _L RAC Adapter cord Wired remote controller cord GRN YEL T Strip wires a A WARNING z c e The naked part of the wire core s
11. heat insulation and to prevent water condensation please cover the outdoor part of Locking mechanism JE the center of the front cover to lock the claws the drain hose and pipe with insulation pipe f g e Completely seal any gap with putty Sleeve of Front Panel L y SK Tighten the two screws protection pipe A ie e Please remove and attach the front panel by both hands Insulation material for pipe connection N Putty a a A To remove the front panel slide the front panel locking x 7 i mechanisms leit anol Aghi Connect the wire connector Close the electrical cover 2 Installation Of Remote Controller toward the directions aS Remove the front e The remote controller can be placed in its holder N indicated by arrows in the panel by pulling it Install the filter i is fi illustration until you hear a towards you TRAE on WAT Or BEms its n ler please The remote clicking sound Slide the shafts of the right and left arms on the washable anel along the steps to insert the shafts into the hole ensure that the unit can receive signal transmitted controller muste Remote p Ona PS SEPS D S ETA from the controller at the place where the holder slide in Pentroller k e p f R the remote is to be fixed The unit will beep when signal is i 2 controller holder received from the remote controller The signal till they stop After checking that the shafts
12. hould be 10 mm and fix it cone re Fix the wired remote controller cord and RAC to the terminal tightly Then try to pull the individual wire to adapter cord by band check if the contact is tight Improper insertion may burn the terminal z H LINK e Be sure to use only power cables approved from the authorities Checking for the electric in your country For example in Germany Cable type NYM For all optional part please refer catalog for part number 3xi 5mm2 source and the voltage range e Please refer to the installation manual for wire connection to e Before installation the power source must be checked the terminals of the units The cabling must meet the standards and necessary wiring work must be completed To make of electrical installation the wiring capacity proper use the wire gauges list below e There is a AC voltage of 230V between the L and N terminals for the lead in from a pole transformer and for the wiring e Assemble back the cover of electrical box Therefore before servicing be sure to remove the plug from from a switch board of fuse box to the main switch and e Please refer to the respective user manual of RAC Adapter C the AC outlet or switch off the main switch outdoor unit in consideration of the locked rotor current for further details e Please be careful not to damage lead wires by edge of plate when connecting the optional parts As for connecting to H Link a separately purchased RAC Adapter
13. mall dia side 6 35 1 4 14 0 18 0 140 180 Large dia side 9 52 3 8 33 0 42 0 330 420 g 3 8 Completely unscrew the spindle of the service valve at 2 places in anti clockwise 12 70 1 2 50 0 62 0 500 620 15 88 a 63 0 77 0 630 oH direction to allow the flow of refrigerant using Hexagonal Wrench key J Valve Small dia side 6 35 1 4 19 6 24 5 200 250 R A S R commend to use head cap Large dia side 9 52 3 8 19 6 24 5 200 250 Re cap the service valve and tighten using wrench Check the cap s periphery if there The body of R410A flaring tool 12 7 1 2 29 4 34 3 300 350 is any gas leakage The task is then completed anica valve A Valve core cap 12 3 15 7 125 160 Remove the charge hose and tighten the cap of valve core Check the cap s periphery if there is any gas leakage When pumping starts Ss any gas ge P slightly loosen the flare nut to check of air sucked in Then tighten gt the flare nut AIR REMOVAL Copper pipe A mm Cap of valve Outer Thickness Gas Leakage Inspection core A Flare tool for R410A Conventional flare tool Hexagonal Diameter mm mm i Wrench Key Clutch type Clutch type Wing nut type Please use gas leakage detector to check if leakage occurs Cap of valve head 6 35 1 4 08 0 0 0 5 1 0 1 5 1 5 2 0 at the connection of Flar
14. nstallation e The upper part of the Indoor unit is hanged on the mounting plate e The projection at the lower part of the Indoor unit is hooked onto the mounting plate Connecting cords pipe and drain hose must be laid together with Vinyl tape Direct Mounting On The Wall e Please use hidden beams in the wall to hold the mounting plate A CAUTION e The rubber strap used for fixing the insulator should not be tied with great force Otherwise this will damage heat insulation and causes water condensation Pipe Mounting plate Mounting plate Lift the body N A CAUTION Refrigerating of the unit Please pull the lower part of Pipe j upwards and the Indoor unit outwards to thensforce tit check if the unit is hooked x downwards onto the mounting plate Improper installation may Drain Hose Connecting tt cause vibration and noise J Cord Insulation pipe must be wrapped with vinyl tape at every 120mm Protection Pipe e Holder can be attached at the either of 2 places Please select the easier position k THE CONNECTION OF REFRIGERATING PIPE DURING THE INSTALLATION OF INDOOR UNIT Preparation To Install Refrigerating Pipes Rubber strap tied with great force P Mounting piate e Push up the PUSH sections at the bottom of the indoor unit and pull the bottom plate towards you
15. proper installation may cause water leakage electric shock and fire AAA Size Battery Screw for Remote Controller holder gt Remote Controller SF Air Purifying Filter Be sure to completely seal any gap with putty 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 collapse and impose danger Observe the rules and regulations of the electrical installation and the methods described in the installation manual when dealing with the electrical work Use power cables approved by the authorities of your country Be sure to use the specified wire for connecting the indoor and outdoor units Please ensure that the connections are tight 3 1x16 after the conductors of the wire are inserted into the terminals Improper insertion and loose contact may cause over heating and fire above 100mm Please use the specified components for installation work Otherwise the units may collapse or water leakage electric shock and fire may occur 2 300mm or more Be sure to use the specified piping set for R 410A Otherwise this may result in broken copper pipes or faults must not bend 9 45m above 300mm ees WOO E When installing or removing an air conditioner only specified refrigerant R410A shall be allowed do not allow air or moisture to remain in the refrigeration cycle Otherwise
16. tion Carelessness may result in water leakage 1 Preparation of Pipe 2 Pipe Connection 3 Removal Of Air From The Pipe And Gas Leakage Inspection e Use a pipe cutter to cut Trimming tool In case of removing flare nut of an Indoor Procedures of using Vacuum Pump for Air Removal the copper pipe unit first remove a nut of small diameter X ay A side or a seal cap of big diameter side will Copper pipe QA CAUTION fly out Prevent water from entering into the piping when working A CAUTION Flare nut e Jagged edge will cause leakage e Point the side to be trimmed downwards during trimming to prevent copper chips from entering the pipe Torque wrench As shown in right figure remove the cap of valve core Then connect the charge hose When the meter reaches 101KPa Remove the cap of valve head Connect the vacuum pump adapter to the vacuum pump e7emt ig during pumping fully tighter and connect the charge hose to the adapter i Meter showing pressure A Q Closed QO O R410A Manifold Fully tighten the Hi knob of the manifold valve and completely unscrew the Lo knob ese yale AN Run the vacuum pump for about 10 15 minutes then completely tighten the Lo knob Stop Stop and switch off the vacuum pump vake valve Vacuum pump Z Vacuum pump adapter e Before flaring please put on the flare nut Outer Torque N m dia of pipe kgf cm S
17. tion pipe GY Drain hose 4 Connecting Drain cap cord Drain hose Please insert until here Please insert until here Refrigerating pipe Connected section Installation of Drain Hose 2 5mm Seal with putty Seal with putty A CAUTION Be sure that the e Cut the protection pipe according to the wall thickness e Empty gap in the sleeve of protection pipe should be completely sealed with putty to avoid dripping of rain water into the room lt IA1008 gt Protection pipe Sleeve of protection pipe the protection pipe as wire passing through the hollow part of the wall so as to prevent the possibility of damaged by mouse Unless it seals completely any air with high humidity flows from outdoor and any dew may drop openings as shown in figure Then smoothen the edges of openings with a file Pipe Openings support S e Turn the piping while holding down the lower Pull up the pipe H i portion of pipe support by hand after bending downward Condensed Condensed water pond Bending upwards water pond drain hose is not loosely connected or bend A CAUTION You are free to choose the side left or right for the installation of drain hose Please ensure the smooth flow of condensed water of the Indoor unit during installa
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