Mitsubishi Electric MSZ-HJ VA Installation Manual
Contents
1. Where children cannot touch it Select a position about 1 2 m above the floor and check that signals from the remote controller are surely received by the indoor unit from that position beep or beep beep receiving tone sounds After that attach remote controller bor to a pillar or wall and install wireless remote control er Note In rooms where inverter type fluorescent lamps are used the signal from the wireless remote controller may not be received OUTDOOR UNIT Where it is not exposed to strong wind Where airflow is good and dustless Where rain or direct sunlight can be avoided as much as possible Where neighbours are not annoyed by operation sound or hot air Where rigid wall or support is available to prevent the increase of operation sound or vibration Where there is no risk of combustible gas leakage When installing the unit at a high level be sure to secure the unit legs Where it is at least 3 m away from the antenna of TV set or radio Operation of the air conditioner may interfere with radio or TV reception in areas where reception is weak An amplifier may be required for the affected device Install the unit horizontally Please install it in an area not affected by snowfall or blowing snow In areas with heavy snow please install a canopy a pedestal and or some baffle boards Could lead to death serious injury etc Could lead to serious injury in particular environments wh2. Insert the piping and the drain hose into the wall ch off in case of lownward piping hole sleeve C and hook the upper part of the indoor unit on the installation plate 1 3 Check if the indoor unit is hooked securely on the installation plate 1 by moving the unit to left and right 4 Thrust the lower part of the indoor unit into the installation plate 1 Drain Piping Ifthe extension drain hose has to pass through a room be sure to wrap it with com mercially sold insulation The drain hose should point downward for easy drain flow Fig 1 If the drain hose provided with the indoor unit is too short connect it with drain hose 1 that should be provided at your site Fig 2 When connecting the drain hose to the hard vinyl chloride pipe be sure to insert it securely into the pipe Fig 3 O Drain T Drain hose hose 70 lt Hard vinyl chloride Downward or e pipe I D 30 mm slope Soft hose SAN iL LD 15mm Insert gt D fia securely A O o Different Fa Ht diameter joint Fig 1 Fig 2 Fig 3 Do not make drain piping as shown below Left or left rear piping Note Be sure to reattach the drain hose and the drain cap in case of left or left rear piping Otherwise it could cause drops of water to drip down from the drain hose Cut off i
3. restart function is unnecessary it can be deactivated Consult the service representative to deactivate the function Refer to the service manual for details 4 4 EXPLANATION TO THE USER Using the OPERATING INSTRUCTIONS explain to the user how to use the air condi tioner how to use the remote controller how to remove the air filters how to remove or put the remote controller in the remote controller holder how to clean precautions for operation etc Recommend the user to read the OPERATING INSTRUCTIONS carefully 5 RELOCATION AND MAINTENANCE 5 1 REMOVING AND INSTALLING THE PANEL ASSEMBLY r Removal procedure 1 Remove the 2 screws which fix the panel assembly 2 Remove the panel assembly Be sure to remove its bottom end first i Installation procedure 1 Install the panel assembly following the removal procedure in reverse 2 Be sure to press the positions as indicated by the arrows in order to attach the assembly completely to the unit 5 2 REMOVING THE INDOOR UNIT Remove the bottom of the indoor unit from the installation plate When releasing the corner part release both left and right bottom corner part of indoor unit and pull it downward and forward as shown in the figure on the right 5 3 PUMPING DOWN When relocating or disposing of the air conditioner pump down the system following the procedure below so that no refrigerant is released into the atmosphere 1
4. specified refrigerant R410A enters the refrigerant circuit Any presence of foreign substance such as air can cause abnormal pressure rise and may result in explosion or injury The use of any refrigerant other than that specified for the system will cause mechanical failure system malfunction or unit breakdown In the worst case this could lead to a serious impediment to securing product safety 7 CAUTION If there is defect in the drainage piping work water could drop W Do not install the outdoor unit where small animals may from the unit soaking and damaging household goods Do not touch the air inlet or the aluminum fins of the outdoor unit This could cause injury 1 2 SELECTING THE INSTALLATION LOCATION Where airflow is not blocked Where cool air spreads over the entire room Rigid wall without vibration Where it is not exposed to direct sunshine Do not expose to direct sunshine also during the period following unpacking to before use Where easily drained At a distance 1 m or more away from your TV and radio Operation of the air conditioner may interfere with radio or TV reception An amplifier may be required for the affected device In a place as far away as possible from fluorescent and incandescent lights so the infrared remote control can operate the air conditioner normally Where the air filter can be removed and replaced easily REMOTE CONTROLLER Where it is easy to operate and easily visible
5. the right for R410A for R22 for R22 15 Terminal block 6 35 1 4 17 13 7 to 17 7 140 to 180 an mm erminal bloc 4 5 to 2 0 9 52 3 8 22 34 3 to 41 2 350 to 420 Indoor outdoor unit 0 to 0 5 1 0 to 1 5 connecting wire A 12 7 1 2 26 201025 49 0 to 56 4 500 to 575 215 88 5 8 29 i 73 5 to 78 4 750 to 800 Lead wire E Cord clamp a Make earth wire a little longer than others More than 100 mm For future servicing give extra length to the connecting wires Be sure to attach each screw to its correspondent terminal when securing the cord and or the wire to the terminal block 3 2 FLARING WORK 1 Cut the copper pipe correctly with pipe cutter Ke Copper Fig 1 2 gt pip 2 Completely remove all burrs from the cut cross section Fig 1 of pipe Fig 3 Put the end of the copper pipe to downward direction as you remove burrs in order to avoid to let burrs drop Good No good in the piping al 3 Remove flare nuts attached to indoor and outdoor units then put them on pipe having completed burr removal B E E A Not possible to put them on after flaring work 4 Flaring work Fig 4 5 Firmly hold copper pipe in the Tilted Uneven Burred dimension shown in the table Select A mm from the Fig 2 table according to the tool you use 5 Check Compare the flared work with Fig 6 If flare is noted to be defective cut off the flared sec tion and do flaring work
6. 1 BEFORE INSTALLATION ENGLISH MITSUBISHI ELECTRIC SPLIT TYPE AIR CONDITIONERS INSTALLATION MANUAL D o 2 c 2 D wW JG79R548H01 Level o 7 Scale Model names are indicated in 1 3 Phillips screwdriver Utility knife or scissors 65 mm hole saw Torque wrench Wrench or spanner Required Tools for Installation 4 mm hexagonal wrench Flare tool for R410A Gauge manifold for R410A Vacuum pump for R410A Charge hose for R410A Pipe cutter with reamer 1 1 THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY Be sure to read THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY before installing the air conditioner Be sure to observe the warnings and cautions specified here as they include important items related to safety After reading this manual be sure to keep it together with the OPERATING INSTRUCTIONS for future reference a eS Do not install the unit by yourself user Incomplete installation could cause fire electric shock injury due to the unit falling or leakage of water Consult the dealer from whom you purchased the unit or a qualified installer Perform the installation securely referring to the installa tion manual Incomplete installation could cause fire electric shock injury due to the unit falling or leakage of water When installing the unit use appropriate protective equip ment and tools for safety Failure to do so could cause injury
7. 7 m additional refrigerant R410A charge is required No additional charge is required for pipe length less than 7 m Additional refrigerant A x pipe length m 7 specific gravity 9 Be sure to use the insulation of specified thickness Excessive thickness may cause incorrect installation of the indoor unit and insufficient thickness may cause dew drippage 1 4 INSTALLATION DIAGRAM ACCESSORIES Check the following parts before installation 5 E 2 lt Indoor unit gt EES 1 Ses 90 mm 1 Installation plate 1 ee OF More 2 Installation plate fixing screw 5 28 4x 25mm ESS 3 Battery AAA for 4 2 4 Wireless remote controller 1 5 Felt tape 1 For left or left rear piping lt Outdoor unit gt ES 6 Drain socket 1 25 PARTS TO BE PROVIDED AT YOUR SITE A Indoor outdoor unit connecting wire 1 B Extension pipe 1 C Wall hole sleeve 1 D Wall hole cover 1 E Pipe fixing band 2to5 F Fixing screw for E 4 x 20 mm 2to5 G Piping tape 1 H Putty 1 Drain hose 1 or soft PVC hose 15 mm inner 1or2 diameter or hard PVC pipe VP16 J Refrigeration oil 1 K Power supply cord 1 ji il i Note l o ko i i ih i Place indoor outdoor unit connecting wire A and Vora My power supply cord K at least 1 m away from the My TV antenna wire ul it Units should be installed b
8. Connect the gauge manifold valve to the service port of the stop valve on the gas pipe side of the outdoor unit 2 Fully close the stop valve on the liquid pipe side of the outdoor unit 3 Close the stop valve on the gas pipe side of the outdoor unit almost completely so that it can be easily closed fully when the pressure gauge shows 0 MPa Gauge 0 kgf cm 4 Start the emergency COOL operation To start the emergency operation in COOL mode disconnect the power supply plug and or turn off the breaker After 15 seconds connect the power supply plug and or turn on the breaker and then press the E O SW once The emergency COOL operation can be performed continuously for up to 30 minutes 5 Fully close the stop valve on the gas pipe side of the outdoor unit when the pressure gauge shows 0 05 to 0 MPa Gauge approx 0 5 to 0 kgf cm 6 Stop the emergency COOL operation Press the E O SW several times until all LED lamps turn off Refer to operating instruc tions for details A WARNING When pumping down the refrigerant stop the compressor before disconnecting the refrigerant pipes The compressor may burst if air etc get into it This product is designed and intended for use in the residential commercial and light industrial environment 2006 95 EC Low Voltage Directive 2006 42 EC Machinery Directive 2004 108 EC Electromagnetic Compatibility Directive 2009 125 EC Energy related Products Directive MITSUBISHI ELECTR
9. IC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN AUTHORIZED REPRESENTATIVE IN EU MITSUBISHI ELECTRIC EUROPE B V HARMAN HOUSE 1 GEORGE STREET UXBRIDGE MIDDLESEX UB8 1QQ U K The product at hand is based on the following EU regulations
10. ING Incomplete connecting and securing could cause fire Do not install the unit in a place where inflammable gas may leak If gas leaks and accumulates in the area around the unit it could cause an explosion Do not use intermediate connection of the power cord or the extension cord and do not connect many devices to one AC outlet It could cause a fire or an electric shock due to defective con tact defective insulation exceeding the permissible current etc Be sure to use the parts provided or specified parts for the installation work The use of defective parts could cause an injury or leakage of water due to a fire an electric shock the unit falling etc When plugging the power supply plug into the outlet make sure that there is no dust clogging or loose parts in both the outlet and the plug Make sure that the power supply plug is pushed completely into the outlet If there is dust clogging or loose parts on the power supply plug or the outlet it could cause electric shock or fire If loose parts are found on the power supply plug replace it Attach the electrical cover to the indoor unit and the service panel to the outdoor unit securely If the electrical cover of the indoor unit and or the service panel of the outdoor unit are not attached securely it could result in a fire or an electric shock due to dust water etc When installing relocating or servicing the unit make sure that no substance other than the
11. Install the unit securely in a place which can bear the weight of the unit If the installation location cannot bear the weight of the unit the unit could fall causing injury Electrical work should be performed by a qualified expe rienced electrician according to the installation manual Be sure to use an exclusive circuit Do not connect other electrical appliances to the circuit If the capacity of the power circuit is insufficient or there is incomplete electrical work it could result in a fire or an electric shock Earth the unit correctly Do not connect the earth to a gas pipe water pipe lightning rod or telephone earth Defective earthing could cause electric shock Do not damage the wires by applying excessive pressure with parts or screws Damaged wires could cause fire or electric shock Be sure to cut off the main power in case of setting up the indoor P C board or wiring works Failure to do so could cause electric shock Use the specified wires to connect the indoor and outdoor units securely and attach the wires firmly to the terminal block connecting sections so the stress of the wires is not applied to the sections Do not extend the wires or use intermediate connection Install an earth leakage breaker depending on the instal lation place If an earth leakage breaker is not installed it could cause electric shock Perform the drainage piping work securely according to the installation manual A WARN
12. again Burr Copper pipe x Spare reamer 1 s Pipe cutter 1 Clutch type Wing nut type Fig 3 Fig 4 3 3 PIPE CONNECTION e Fasten flare nut with a torque wrench as specified in the table When fastened too tight flare nut may break after a long period and cause refrigerant leak age Be sure to wrap insulation around the piping Direct contact with the bare piping may result in burns or frostbite Indoor unit connection Connect both liquid and gas pipings to indoor unit Apply a thin coat of refrigeration oil J on the flared ends of the pipes Do not apply refrigera tion oil on screw threads Excessive tightening torque will result in damage on the screw e For connection first align the center then tighten the first 3 to 4 turns of flare nut e Use tightening torque table above as a guideline for indoor unit side union joint section and tighten using two wrenches Excessive tightening damages the flare section Outdoor unit connection Connect pipes to stop valve pipe joint of the outdoor unit in the same manner applied for indoor unit e For tightening use a torque wrench or spanner and use the same tightening torque applied for indoor unit A WARNING When installing the unit securely connect the refrigerant pipes before starting the compressor 3 4 INSULATION AND TAPING 1 Cover piping joints with pipe cover 2 For outdoor unit side surely insulate every p
13. d for 30 minutes If the upper lamp of the operation indicator blinks every 0 5 seconds inspect the indoor outdoor unit connecting wire A for mis wiring After the test run emergency mode set temperature 24 C will start 3 To stop operation press the E O SW several times until all LED lamps turn off Refer to operating instructions for details Emergency operation switch E O SW Checking the remote infrared signal reception Press the ON OFF button on the remote controller 4 and check that an electronic sound is heard from the indoor unit Press the ON OFF button again to turn the air conditioner off Once the compressor stops the restart preventive device operates so the compressor will not operate for 3 minutes to protect the air conditioner 4 3 AUTO RESTART FUNCTION This product is equipped with an auto restart function When the power supply is stopped during operation such as during blackouts the function automatically starts operation in the previous setting once the power supply is resumed Refer to the operating instructions for details Caution e After test run or remote signal reception check turn off the unit with the E O SW or the remote controller before turning off the power supply Not doing so will cause the unit to start operation automatically when power supply is resumed To the user e After installing the unit make sure to explain the user about auto restart function e If auto
14. en operated incorrectly Do not discharge the refrigerant into the atmosphere If refrigerant leaks during installation ventilate the room If refrigerant comes in contact with a fire harmful gas could be generated Refrigerant leakage may cause suffocation Provide ventilation in accordance with EN378 1 Check that the refrigerant gas does not leak after instal lation has been completed If refrigerant gas leaks indoors and comes into contact with the flame of a fan heater space heater stove etc harmful substances will be generated Use appropriate tools and piping materials for installa tion The pressure of R410A is 1 6 times more than R22 Not using appropriate tools or materials and incomplete installation could cause the pipes to burst or injury When pumping down the refrigerant stop the compressor before disconnecting the refrigerant pipes If the refrigerant pipes are disconnected while the compressor is running and the stop valve is open air could be drawn in and the pressure in the refrigeration cycle could become ab normally high This could cause the pipes to burst or injury When installing the unit securely connect the refrigerant pipes before starting the compressor If the compressor is started before the refrigerant pipes are connected and when the stop valve is open air could be drawn in and the pressure in the refrigeration cycle could become abnormally high This could cause the pipes to burst or
15. ier Air hose dipped _ 50 mm 7 Cut out a piece of cardboard from the shipping box roll it L L zD D gap up hook it onto the back rib and use it as a spacer to lift gt LA i D wi the indoor unit Fig 5 Water Water Water a4 7 8 Connect the refrigerant piping with the extension pipe leakage leakage Waving leakage XZ Ditch B 9 Thrust the lower part of the indoor unit into the installation plate 1 z gt 3 OUTDOOR UNIT INSTALLATION J 3 1 CONNECTING WIRES FOR OUTDOOR UNIT A TENE 1 Open the service panel ne ie ee 2 Loosen terminal screw and connect indoor outdoor unit connecting wire A from Z Soom all e the indoor unit correctly on the terminal block Be careful not to make mis wiring Fix Fi Copper pipe the wire to the terminal block securely so that no part of its core is appeared and no Die external force is conveyed to the connecting section of the terminal block Even length 3 Firmly tighten the terminal screws to prevent them from loosening After tightening Flare nut Fig 5 all around a Fig 6 pull the wires lightly to confirm that they do not move 4 Fix indoor outdoor unit connecting wire A and power supply cord K with the cord clamp A mm Tightening torque 5 Close the service panel securely i i 7 Do not connect the power supply cord and the ei an Clutch type Clutch type Wing nut indoor outdoor unit connecting wire to the 2 tool tool type tool Nem kgf cm lt HJ25 35 gt terminals from
16. injury Fasten a flare nut with a torque wrench as specified in this manual If fastened too tight a flare nut may break after a long period and cause refrigerant leakage The unit shall be installed in accordance with national wiring regulations live If small animals enter and touch the electric parts inside the unit it could cause a malfunction smoke emission or fire Also advise user to keep the area around the unit clean Note It is advisable to make a piping loop near outdoor unit so as to reduce vibration transmitted from there Note When operating the air conditioner in low outside tempera ture be sure to follow the instructions described below Never install the outdoor unit in a place where its air inlet outlet side may be exposed directly to wind To prevent exposure to wind install the outdoor unit with its air inlet side facing the wall To prevent exposure to wind it is recommended to install a baffle board on the air outlet side of the outdoor unit Avoid the following places for installation where air condi tioner trouble is liable to occur Where flammable gas could leak Where there is much machine oil Where oil is splashed or where the area is filled with oily smoke such as cooking areas and factories in which the properties of plastic could be changed and damaged Salty places such as the seaside Where sulfide gas is generated such as a hot spring Where there is high frequency
17. iping including valves 3 Using piping tape G apply taping starting from the entry of outdoor unit Stop the end of piping tape G with tape with adhesive agent attached When piping have to be arranged through above ceiling closet or where the temperature and humidity are high wind additional commercially sold insulation to prevent condensa tion 4 PURGING PROCEDURES LEAK TEST AND TEST RUN 4 1 PURGING PROCEDURES AND LEAK TEST 1 Remove service port cap of stop valve on the side of the outdoor unit gas pipe The stop valves are fully closed and covered in caps in initial state 2 Connect gauge manifold valve and vacuum pump to service port of stop valve on the gas pipe side of the outdoor unit Compound pressure gauge for R410A Pressure gauge for R410A Gauge manifold valve for R410A Handle High Charge hose for R410A 0 101 MPa 4 to 5 turns 760 mmHg Stop valve cap Torque 19 6 to 29 4 Nem 200 to 300 kgf cm Close Open a Hexagonal wrench Stop valve for LIQUID Service port cap Torque 13 7 to 17 7 Nem 140 to 180 kgf cm Adapter for preventing the back flow Vacuum pump or the vacuum pump with the function to prevent the back flow 7 When attaching the control valve to the service port valve core may de form or loosen if excess pressure is applied This may cause gas leak Precautions when using the control
18. n case of left piping Drain cap 1 Put the refrigerant piping and the drain hose together then firmly apply felt tape 5 from the end Felt tape 5 overlap width should be 1 3 the tape width Use a bandage stopper at the end of felt tape 5 2 Pull out the drain cap at the rear right of the indoor unit Fig 1 e Hold the convex section at the end and pull the drain cap 3 Pull out the drain hose at the rear left of the indoor unit Fig 2 2 e Hold the claw marked by the arrows and pull out the Drain hose drain hose forward Fig 2 4 Put the drain cap into the section to which the drain hose is to be attached at the rear of the indoor unit Fig 3 e Insert not sharp edged tools such as screwdrivers into the hole at the end of the cap and insert the cap fully into the drain pan 5 Insert the drain hose fully into the drain pan at the rear Fig 3 right of the indoor unit Fig 4 e Check if the hose is hooked securely to the projection of its inserting part at the drain pan 6 Insert the drain hose into wall hole sleeve C and hook the upper part of indoor unit on installation plate 1 Then Drain cap Drain hose Do not raise Accumulated move the indoor unit completely to the left in order to make drain water Tip of drain At least placing the piping in the back space of the unit eas
19. or wireless equipment Where there is emission of high levels of VOCs including phthalate compounds formaldehyde etc which may cause chemical cracking 1 3 SPECIFICATIONS oT n Pipe size Model Power supply 1 Wire specifications 2 thickness 3 4 Pipe length and height difference Indoor unit Outdoor unit Rated Voltage Frequency eee Power supply indoor outdoor connect Gas Liquid Max pipe length eom capacity ing wire Max height difference 12m MSZ HJ25VA MUZ HJ25VA 3 core 4 core 9 52 6 35 mm wE w MSZ HJ35VA MUZ HJ35VA 10A 10mm 1 0 mm 0 8 mm Ma number ot bends s9 10 230 V 50 Hz 3r Z core 2 Omm 212 7 16 35 mm Refrigerant adjustment A 7 20 g m MS HJ UVA MUZEISOVA 12A 1 5mm 1 5 mm 16 m or less 0 8 mm Insulation thickness 8 9 8 mm 1 Connect to the power switch which has a gap of 3mm or more 5 Be careful not to crush or bend the pipe during pipe bend 8 Insulation material Heat resisting foam plastic 0 045 when open to interrupt the source power phase When the power switch is shut off it must interrupt all phases 2 Use wires in conformity with design 60245 IEC 57 3 Never use pipes with thickness less than specified The pres sure resistance will be insufficient 4 Use a copper pipe or a copper alloy seamless pipe ing 6 Refrigerant pipe bending radius must be 100 mm or more 7 pipe length exceeds
20. r piping connection Connect drain hose I 1 D 145 mm as shown in the illustration e Make sure to provide drain piping with a J downhill grade for easy drain flow Note Install the unit horizontally Do not use drain socket 6 in cold regions Drain may freeze and make the fan stop The outdoor unit produces condensate during the heating operation Select the installation place to ensure to prevent the outdoor unit and or the grounds from being wet by drain water or damaged by frozen drain water 2 INDOOR UNIT INSTALLATION d 2 1 FIXING OF INSTALLATION PLATE e Find a structural material such as a stud in the wall and fix installation plate 1 hori zontally by tightening the fixing screws 2 firmly To prevent installation plate 1 from vibrating be sure to install the fixing screws in the holes indicated in the illustration For added support fixing screws may also be installed in other holes When the knockout is removed apply vinyl tape to the knockout edges to prevent damag ing the wires When bolts recessed in the concrete wall are to be utilized secure installation plate 1 using 11 x 20 11 x 26 oval hole 450 mm pitch e Ifthe recessed bolt is too long change it for a shorter one available in the market 2 2 WALL HOLE DRILLING 1 Determine the wall hole position 2 Drill a 65 mm hole The outdoor side should be 5 to 7 mm lower than the indoor
21. rew 15 mm 35 mm Hili P Lead wire on Power supply cord K Indoor outdoor unit connecting wire A Earth wire green yellow Indoor terminal block S1 S2 S3 N L For future servicing give extra length to the connecting wires Make earth wire a little longer than others More than 60 mm Do not fold the excess wire or cram it into small space Take caution not to damage the wires Power supply _ cord K Be sure to attach each screw to its corre spondent terminal when securing the cord and or the wire to the terminal block Note Do not place the wires between the indoor unit and the installation plate 1 Damaged wire could cause heat genera tion or fire S 1 S2 S3 Outdoor terminal block Indoor outdoor unit connecting wire A 2 4 PIPE FORMING AND DRAIN PIPING Pipe Forming sie a Place the drain hose below the refrigerant piping a Make sure that the drain hose is not heaved or snaked Indoor outdoor unit Do not pull the hose when applying the tape connecting wire A e When the drain hose passes the room be sure to wrap Felt tape 5 insulation material obtainable at a store around it Piping tape G Rear right or downward piping Cut off in case of 1 Put the refrigerant piping and the drain hose right piping together then firmly apply piping tape G from the end 2
22. side 3 Insert wall hole sleeve C Wall 265 mm Tz _ 5 7 mm Outdoor side Bem ormore FY SLLLLITSS Ceiling 55 mm or more 130 mm or more for left and left back piping using spacer Installation plate 1 screw 2 Align the scale with Center of 265 mm hole Position of the union joints 110 mm longer for EN Same for left hole 2 3 CONNECTING WIRES FOR INDOOR UNIT You can connect indoor outdoor lead wire without removing the front panel 1 Open the front panel 2 Remove VA clamp 3 Pass indoor outdoor unit connecting wire A and power supply cord K from the back of the indoor unit and process the end of the wire 4 Loosen terminal screw and connect first the earth wire then power supply cord K and indoor outdoor unit connecting wire A to the terminal block Be careful not to make mis wiring Fix the wire to the terminal block securely so that no part of its core is appeared and no external force is conveyed to the connecting section of the terminal block 5 Firmly tighten the terminal screws to prevent them from loosening After tightening pull the wires lightly to confirm that they do not move 6 Secure indoor outdoor unit connecting wire A power supply cord K and the earth wire with the VA clamp Never fail to hook the left claw of the VA clamp Attach the VA clamp securely PEH VA clamp Terminal block i l Fixing sc
23. valve 6 f When attaching the control valve to f Service port the service port make sure that the ebatrolvane valve core is in closed position and Open O then tighten part A Do not tighten pen part A or turn the body when valve Close Charge hose NAF aa Body core is in open position we 3 Run the vacuum pump Vacuumize for more than 15 minutes 4 Check the vacuum with gauge manifold valve then close gauge manifold valve and stop the vacuum pump 5 Leave as it is for one or two minutes Make sure pointer gauge manifold valve remains in the same position Confirm that pressure gauge shows 0 101 MPa Gauge 760 mmHg 6 Remove gauge manifold valve quickly from service port of stop valve 7 After refrigerant pipes are connected and evacuated fully open all stop valves on both sides of gas pipe and liquid pipe Operating without fully opening lowers the performance and this causes trouble 8 Refer to 1 3 and charge the prescribed amount of refrigerant if needed Be sure to charge slowly with liquid refrigerant Otherwise composition of the refrigerant in the system may be changed and affect performance of the air conditioner 9 Tighten cap of service port to obtain the initial status 10 Leak test 4 2 TEST RUN 1 Insert power supply plug into the power outlet and or turn on the breaker 2 Press the E O SW once for COOL and twice for HEAT opera tion Test run will be performe
24. y licensed contrac tor according to local code requirements S Fe Appearance of the outdoor unit may differ from or drainage some models Provide adequate clearance S a Wall hole cover D S Seal the wall hole gap with putty H Be sure to use wall hole sleeve C to prevent in door outdoor connecting wire A from contacting Indoor unit j Wall hole metal parts in the wall sleeve C Fix the pipe to wall and to prevent damage by D with pipe fixing band rodents in case the wall X E is hollow Cut off the Pipe fixing band extra length E Fixing screw F X After the leak test apply Outdoor unit installation HJ25 35 HJ50 N insulating material tightly so 699 800 mm that there is no gap 1217 50 imn When the piping is to be air inlet E attached to a wall containing Ele 9 metals tin plated or metal E E GA netting use a chemically treated wooden piece 20mm S S or thicker between the wall 9 y and the piping or wrap 7 to 8 Z UAir outlet ia turns of insulation vinyl tape around the piping X To use existing piping per form COOL operation for 30 minutes and pump down before removing the old air conditioner Remake flare according to the dimension for new refrigerant 2 4 10 mm x 21 mm slot 40 mm Drain piping for outdoor unit e Provide drain piping before indoor and outdoo
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