1. BEFORE INSTALLATION - Mitsubishi Electric Australia
Contents
1. GE25 33 35 42VA 3 IMPORTANT NOTES To comply with the requirements of Australian standard AS NZS 3000 electri cal installations wiring rules the electrical wiring required between the indoor and outdoor units must be installed by a licenced electrical contractor 50 rm om Check the following parts before installation ps lt Indoor unit gt 3 2 100 mm 1 Installation plate 1 E be S OF Morg 2 Installation plate fixing screw 5 35 ze 4 x 25mm 3 3 Remote controller holder 1 Fixing screw for 3 3 5 x 16 mm 4 Black 2 5 Battery AAA for 6 2 6 Wireless remote controller 1 7 Felt tape 1 For left or left rear piping 8 Air cleaning filter 2 lt Outdoor unit gt 9 Drain socket VA type only 1 10 Drain cap 33 GE50VA only 2 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 2105 GE25 33 35 42 GE50 F Fixing screw for E 4 x 20 mm 2to5 100 500 mm or more G Piping tape 1 H Putty 1 Drain hose I or soft PVC hose 15 mm inner 1or2 diameter or hard PVC pipe VP16 J Refrigeration oil 1 K Power supply cord 1 Note Place indoor outdoor unit connecting wire A and power supply cord K at least 1 m away rom the TV antenna wire CF23 3 35 42 GE50 mm or more Units should be installed by licensed contractor App2. ENGLISH 2 MITSUBISHI A ELECTRIC SPLIT TYPE AIR CONDITIONERS INSTALLATION MANUAL Model names are indicated in 1 3 When installing multi units refer to the installation manual of the multi unit for outdoor unit installation JG79A152H03 Level Scale 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 1l BEFORE INSTALLATION 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 E Do not install the unit by yourself user Incomplete installation could cause fire or 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 installation manual Incomplete installation could cause fire or electric shock injury due to the unit falling or leakage of water Install the unit securely in a place which c
3. 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 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 right of the indoor unit Fig 4 Check if the hose is hooked securely to the projec tion 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 move the indoor unit completely to the left in order to make placing the piping in the back space of the unit easier 7 Cut out a piece of cardboard from the shipping box roll it up hook it onto the back rib and use it as a spacer to lift the indoor unit Fig 5 XN 8 Connect the refrigerant piping with the extension pipe B 9 Thrust the lower part of the indoor unit into the installation plate 1 piping Drain cap Cut off in case of left Drain cap Fig 3 Drain hose 3 OUTDOOR UNIT INSTALLATION 3 1 CONNECTING WIRES FOR OUTDOOR UNIT 1 Open the service panel 2 Loosen terminal screw and connect indoor outdoor unit connecting wire A from the indoor unit correctly on 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 externa
4. 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 Check that all LED lamps are not lit If they are blinking check that the horizontal vane is in stalled correctly Refer to operating instructions for details 2 Press the E O SW once for COOL and twice for HEAT operation Test run will be performed for 30 minutes If the upper lamp of the operation indicator blinks every 0 5 seconds inspect the indoor outdoor unit connecting wire 2 A for mis wiring After the test run emergency mode set temperature 24 C will start Emergency 3 To stop operation press the E O SW several times until operation switch all LED lamps turn off Refer to operating instructions for E O SW details Checking the remote infrared signal reception Press the ON OFF button on the remote controller 6 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 Thi
5. le Ne Indoor unit Seal the wall ho SP Wall hole sleeve C Fix the pipe to wall with pipe fixing band E Pipe fixing band E Cut off the extra length so that there is no gap te screw When the piping is to be at tached to a wall containing Outdoor unit installation GE25 33 35 42 GE50 metals tin plated or metal 800 840 mm netting use a chemically 750 169 treated wooden piece 20 mm S00 mm mm or thicker between the T O Air inlet wall and the piping or wrap 7 to 8 turns of insulation vi nyl tape around the piping To use existing piping per form COOL operation for 30 minutes and pump down Z UAir outlet Mais before removing the old air 2 4 10 mm x 21mm slot 40 mm conditioner Remake flare G J according to the dimension Drain piping for outdoor unit for new refrigerant lt VA type only gt e Provide drain piping before indoor and outdoor piping connection Connect drain hose I 1 D 15 mm as shown in the illustration Choose one hole for draining and install drain socket 9 Close the re maining two holes with drain cap 10 GESOVA only e Make sure to provide drain piping with a downhill grade for easy drain flow Note Install the unit horizontally Do not use drain socket 9 in cold regions Drain may freeze and make the fan stop 344 5 392 mm 285 330 mm 304 325 360 mm
6. 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 A 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 If the above method cannot be used Remove the panel Then insert hexagonal wrenches into the square holes on the left and right sides of the unit and push them up as shown in the following figure The bottom of the indoor unit lowers and releases the hooks Square hole 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 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 con
7. 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 Drain hose hose 70 om or a Har inyi evans Downward more pipe I D 30 mm Y Slope r gt Soft hose SLAN L LD 15 mm Insert a po securely ZY hd Different aa diameter joint Fig 1 Fig 2 Fig 3 Do not make drain piping as shown below Do not raise Accumulated drain water Tip of drain At least Ai hose dipped 50 mm ir A in water gap 4 N t al AR 7777777 Water Water Water GLD y leakage leakage Waving leakage XZ Ditch 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 7 1 Put the refrigerant piping and the drain hose together then firmly apply felt tape 7 from the end Felt tape 7 overlap width should be 1 3 the tape width Use a bandage stopper at the end of felt tape 7 2 Pull out the drain cap at the rear right of the indoor unit Fig 1 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 e Hold the claw marked by the arrows and pull out the drain hose forward 4
8. frigerant 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 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 E The unit shall be installed in accordance with na tional wiring regulations Could lead to serious injury in particular environments when operated incorrectly E Do not install the outdoor unit where small animals may 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 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 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 af fected 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 c
9. R410A Close Open a ls Hexagonal wrench ER Service port cap Torque 13 7 to 17 7 Nem 140 to 180 kgf cm Stop valve for LIQUID Adapter for pre 7 venting the back flow Vacuum pump or the vacuum pump with the function to prevent the back flow Precautions when using the control valve When attaching the control valve to the service port valve core may deform or loosen if excess pressure is applied This may cause gas leak iS f When attaching the control valve to Sf Service port the service port make sure that the Conirolivalve valve core is in closed position and Open S D then tighten part A Do not tighten pen part A or turn the body when valve Close Charge hose Rae en Body core is in open position 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 perform ance and this causes trouble 8 Refer to 1 3
10. an be removed and replaced easily REMOTE CONTROLLER Where it is easy to operate and easily visible 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 re ceived by the indoor unit from that position beep or beep beep receiving tone sounds After that attach re mote controller holder to a pillar or wall and install wire less remote controller 1 3 SPECIFICATIONS a Rated Breaker MSZ GE22VA MSZ GE25VA MSZ GE33VA 2 MSZ GE35VA 230 V 50 Hz 0 mm MSZ GE42VA MSZ GE50VA Indoor unit MUZ GE25VA MUZ GE33VA MUZ GE35VA MUZ GE42VA 1 Connect to the power switch which has a gap of 3 mm or more 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 pressure resistance will be insufficient Note In rooms where inverter type fluorescent lamps are used the signal from the wireless remote controller may not be received OUTDOOR UNIT Power supply 1 4 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 sou
11. an 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 experienced 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 light ning 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 Install an earth leakage breaker depending on the installation place If an earth leakage breaker is not installed it could cause electric shock Perform the drainage piping work securely accord ing to the installation manual A WARNING extend the wires or use intermediate connection Incomplete connecting and securing cou
12. as could leak Where there is much machine oil Salty places such as the seaside Where sulfide gas is generated such as a hot spring Where there is high frequency or wireless equipment GE25 33 35 42 GE50 Pipe length and height difference Max pipe length 20 30 m Max height difference 12 15 m Max number of bends 5 6 Refrigerant adjustment A 7 30 20 g m Insulation thickness 8 9 012 7 6 35 mm 0 8 mm Additional refrigerant A x pipe length m 7 5 Be careful not to crush or bend the pipe during pipe bending 8 Insulation material Heat resisting foam plastic 0 045 6 Refrigerant pipe bending radius must be 100 mm or more specific gravity 7 If pipe length exceeds 7 m additional refrigerant R410A 9 Be sure to use the insulation of specified thickness Exces charge is required No additional charge is required for pipe length less than 7 m sive thickness may cause incorrect installation of the indoor unit and insufficient thickness may cause dew drippage 1 4 INSTALLATION DIAGRAM ACCESSORIES Be sure to use wall hole sleeve C to prevent indoor outdoor connecting wire A from contacting metal parts in the wall and to prevent damage by rodents in case the wall is hollow After the leak test apply insulating material tightly a Wall hole cover D
13. circuit Any presence of foreign substance such as air can cause abnormal pressure rise and may result in explo sion or injury A CAUTION If there is defect in the drainage piping work water could drop from the unit soaking and damaging house hold goods E Do not touch the air inlet or the aluminum fins of the outdoor unit This could cause injury Could lead to death serious injury etc E 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 Check that the refrigerant gas does not leak after installation 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 installation 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 com pressor before disconnecting the refrigerant pipes If the refrigerant pipes are disconnected while the compres sor is running and 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 injury When installing the unit securely connect the re
14. earance of the outdoor unit may differ from according to local code requirements some models 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 with fixing screws 2 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 e When the knockout is removed apply vinyl tape to the knockout edges to prevent damaging the wires e 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 Wall 1 Determine the wall hole position l 2 Drill a 65 mm hole The outdoor side should be 965mm 5 7mm 5 to 7 mm lower than the indoor side i 3 Insert wall hole sleeve C Outdoor side ILILILILIL Ceiling LZ 54 mm or more 130 mm or more for left and left back piping using spacer Samm ormore A Align the scale with Center of Align the plumb 65 mm hole line with the mark V Fixing screw 2 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 c
15. ing 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 section and do flaring work a B E B E Tilted Uneven Burred Fig 2 again Burr Copper pipe A Spare reamer n x Pipe cutter A Fig 3 Clutch type Wing nut type Fig 4 f Inside is shin 7A iz a nae Copper pipe Die Even length Flare nut Fig 5 all around Fig 6 A mm Tightening torque Pipe diameter Nut Clutch type Clutch type Wing nut mm mm tool tool type tool Nem kgf cm for R410A for R22 for R22 6 35 1 4 17 1 51020 13 7 to 17 7 140 to 180 9 52 3 8 22 0to05 1 0t015 34 3 to 41 2 350 to 420 12 7 1 2 26 201025 49 0 to 56 4 500 to 575 215 88 5 8 29 73 5 to 78 4 750 to 800 3 3 PIPE CONNECTION 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 leakage Indoor unit connection Connect both liquid and gas pipings to indoor unit Apply a thin coat of refrigeration oil J on the seat surface of pipe For connection first align the center then tighten the first 3 to 4 turns of flare nut 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 co
16. l force is conveyed to the connecting section of the terminal block 3 Firmly tighten the terminal screws to prevent them from loosening After tightening pull the wires lightly to confirm that they do not move 4 Connect power supply cord K 5 Fix indoor outdoor unit connecting wire A and power supply cord K with the cord clamp 6 Close the service panel securely Make earth wire a little longer than others More than 60 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 Terminal block 15 mm the wire to the terminal block 35 mm Indoor outdoor unit connecting wire A Power supply cord K Power supply Cord clamp cord K vw lt GE25 33 35 42 gt LIN Ss Lead wire Cord clamp lt GE50 gt 3 2 FLARING WORK 1 Cut the copper pipe correctly with pipe cutter Fig 1 2 we Copper 2 Completely remove all burrs from the cut cross sec pipe tion of pipe Fig 3 Fig 1 Put the end of the copper pipe to downward direc tion as you remove burrs in order to avoid to let burrs drop in the piping Good No good 3 Remove flare nuts attached to indoor and outdoor units then put them on pipe having completed burr removal Not possible to put them on after flaring work 4 Flaring work Fig 4 5 Firmly hold copper pipe in the dimension shown in the table Select A mm from the table accord
17. lamp 3 Pass indoor outdoor unit connecting wire A from the back of the indoor unit and proc ess the end of the wire 4 Loosen terminal screw and connect first the earth wire then indoor outdoor unit con necting 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 and the earth wire with the VA clamp Never fail to hook the left claw of the VA clamp Attach the VA clamp securely Terminal block VA clamp Fixing screw 15mm 35 mm Lead wire Indoor outdoor unit connecting wire A For future servicing give extra length to the Indoor terminal block connecting wires Earth wire D S1 S2 S3 Make earth wire a little longer than others More green yellow than 60 mm ic Do not fold the excess wire or cram it into small space Take caution not to damage the wires indoor outdoor Be sure to attach each screw to its unit correspondent terminal when securing the cord connecting wire and or the wire to the terminal block A Note Do not place the wires between the indoor unit a
18. ld 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 defec tive contact defective insulation exceeding the permis sible 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 sup ply 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 or relocating the unit make sure that no substance other than the specified refriger ant R410A enters the refrigerant
19. nd 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 Wire specifications 2 Indoor outdoor connecting wire 3 core 10 1 0 mm Use a copper pipe or a copper alloy seamless pipe Pipe size thickness 3 4 Gas Liquid 09 52 6 35 mm 0 8 mm 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 e 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 g
20. nd the installation plate 1 Dam aged wire could cause heat generation or fire ARR Outdoor terminal block 2 4 PIPE FORMING AND DRAIN PIPING Pipe Forming e Place the drain hose below the refrigerant piping Make sure that the drain hose is not heaved or snaked Do not pull the hose when applying the tape e When the drain hose passes the room be sure to wrap insulation material obtainable at a store around it Liquid pipe Gas pipe Indoor outdoor unit connecting wire A Felt tape 7 Piping tape G Rear right or downward piping 1 Put the refrigerant piping and the drain hose together then firmly apply piping tape G from the end 2 Insert the piping and the drain hose into the wall 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 Cut off in case of right piping Cut off in case of downward piping Drain Piping e If the 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 e Ifthe drain hose provided with the indoor unit is too short connect it with drain hose I that should be provided
21. nect 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 in structions 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 2 MITSUBISHI ELECTRIC CORPORATION HEAD OFFICE TOKYO BLDG 2 7 3 MARUNOUCHI CHIYODA KU TOKYO 100 8310 JAPAN
22. nnection Connect pipes to stop valve pipe joint of the outdoor unit in the same manner applied for indoor unit When installing the unit securely connect the refrigerant pipes before starting the compressor For tightening use a torque wrench or spanner and use the same tightening torque applied for indoor unit A WARNING 3 4 INSULATION AND TAPING 1 Cover piping joints with pipe cover 2 3 For outdoor unit side surely insulate every piping including valves 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 tempera ture and humidity are high wind additional commercially sold insulation to prevent condensation 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 0 101 MPa for R410A 760 mmHg 4 to 5 turns Stop valve cap Torque 19 6 to 29 4 Nem 200 to 300 kgf cm Pressure gauge for R410A Gauge manifold valve for R410A Handle High Charge hose for
23. s 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 instruc tions for details Caution 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 After installing the unit make sure to explain the user about auto restart function If auto 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 e Recommend the user to read the OPERATING INSTRUCTIONS carefully 5 RELOCATION AND MAINTENANCE 5 1 REMOVING AND INSTALLING THE PANEL ASSEMBLY Removal procedure N 1 Remove the 2 screws which fix the panel assem bly 2 Remove the panel assembly Be sure to remove its bottom end first p Installation procedure
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