INSTALLATION MANUAL Floor Type Air
Contents
1. The front panel can be removed without opening the damper of the lower air outlet Rear horizontal Af vane WX SS d SS Front panel Front horizontal Indoor unit vane Do not open the damper of the lower air outlet 2 4 INDOOR UNIT INSTALLATION e Hook the top of the indoor unit on the indoor unit mounting bracket 7 e Use the included wood screws 9 and washer 10 and fasten the indoor unit at 2 locations each at the top and the middle of the unit 2 5 EMBEDDING THE INDOOR UNITINA WALL e When installing a grating use a grating with narrow upper and lower horizontal bars so that the airflow from the upper and lower air out lets does not contact the bars If the horizontal bars will block the lower air outlet use a stand etc to adjust the height of the indoor unit If the upper or lower air outlet is blocked the air conditioner will not be able to cool or warm the room well Do not block the receiver with the grating Otherwise the grating will interfere with the remote controller signal and significantly reduce the distance and area angle from which the signals can be received e Use a grating with vertical bars etc that has at least 75 open area If the grating has horizontal bars or if the open area is less than 75 performance could be reduced e When the indoor unit is embedded in a wall built in the time it takes for the room temperature to r2. For tightening use a torque wrench or spanner and use the same tightening torque applied for indoor unit A WARNING 3 3 INSULATION AND TAPING When installing the unit securely 1 Cover piping joints with pipe cover connect the refrigerant pipes before 2 For outdoor unit side surely insulate every piping including valves starting the compressor 3 Using piping tape G apply taping starting from the entry of outdoor unit e 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 condensation 4 TEST RUN 4 1 TEST RUN Make sure the following is done e The area around the damper is free of any objects and the movement of the damper is not blocked e Panel is installed correctly Indoor and outdoor units are installed correctly and power is supplied 1 Press the E O SW once for COOL and twice for HEAT operation Test run will be performed for 30 minutes If the left 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 Emergency start a operation switch 2 To stop operation press the E O SW several times until all LED lamps turn off Refer to operating in E O SW structions for de
3. MITSUBISHI ELECTRIC Floor Type Air Conditioner MFZ KA25VA MFZ KA35VA MFZ KA50VA INSTALLATION MANUAL e This manual only describes the installation of indoor unit When installing the outdoor unit refer to the installation manual of outdoor unit 1 BEFORE INSTALLATION chacie 2 2 INDOOR UNIT INSTALLATION 00 ee snusen eaaa 4 3 FLARING WORK AND PIPE CONNECTION 0 cc cceceeeeeeeeeeeeeeeseeeneenaes 7 Ay TIE SATU cerea tosses cctcatacteadelatdn elites anti E meas lass 8 5 PUMPING DOWN varistenecdit eeceinn canned nendiea tities 8 FOR INSTALLER 1 BEFORE INSTALLATION 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 e After reading this manual be sure to keep it together with the OPERATING INSTRUCTIONS for future reference A WARNING Could lead to death serious injury etc 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 E Perform the installation securely referring to the installation manual Incomplete installation could cause fire or electric
4. be 100 mm or more interrupt all phases 7 Insulation material Heat resisting foam plastic 0 045 specific gravity 2 Use wires in conformity with design 60245 IEC 57 8 Be sure to use the insulation of specified thickness Excessive thickness may 3 Never use pipes with thickness less than specified The pressure resistance cause incorrect installation of the indoor unit and insufficient thickness may will be insufficient cause dew drippage 4 Use a copper pipe or a copper alloy seamless pipe 1 5 INSTALLATION DIAGRAM 100 mm or more 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 2 wall is hollow N Wall hole sleeve C Wall hole cover D 13 Indoor unit Seal the wall hole gap with putty H WML peo Fix the pipe to wall with pipe fixing band E Cut off the pies Ay Pipe fixing band extra length a E o Sk Fixing screw F ha J After the leak test apply insulating mate rial tightly so that there is no gap When the piping is to be attached to a wall containing metals tin plated or metal netting use a chemically treated wooden piece 20 mm or thicker between the wall and the piping or wrap 7 to 8 turns of insulation vinyl tape around the piping To use existing piping perform COOL operation for 30 minut
5. shock injury due to the unit falling or leakage of water E 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 E Perform electrical work according to the installation manual and 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 E Do not damage the wires by applying excessive pressure with parts or screws Damaged wires could cause fire E 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 E Use the specified wires to connect the indoor and outdoor units se curely and attach the wires firmly to the terminal block connecting sections so the stress of the wires is not applied to the sections Incomplete connecting and securing could cause fire E 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 E Do not use intermediate connection of the power cord or the ex tension cord and do not connect many devices to one AC outlet It could cause a fire or an electric shock due to defective contact de fective insulation exceeding the permissible c
6. 0 or more Upper air outlet 100 or more more Indoor r Receiver r Grating unit El 475 65 Lower air outlet Control board Cut the wires on both ends Cut the JRFBL wires Terminal block Electrical cover Cord clamp d Fixing screw Indoor outdoor unit connecting wire A Indoor terminal block S1 S2 s3 D Earth wire T _ green yellow 35 15 mm mm Indoor outdoor unit L lt connecting wire A Lead wire a Si s2 s3 Outdoor terminal block e Make earth wire a little longer than others More than 55 mm e For future servicing give extra length to the connecting wires 2 7 PIPE FORMING AND INSTALLATION Pipe Forming Route the drain hose diagonally below the connecting pipes beg Make sure that the drain hose is not routed upward and that there Piping bent out Push Piping h are no waves in the hose ward tape Do not pull the hose when applying the tape Route the piping so that it does not project past the rear of the indoor unit Refer to the figu
7. 3 REQUIRED TOOLS FOR INSTALLATION Phillips screwdriver Level Scale Utility knife or scissors 25 35 class 65 mm 50 Class 75 mm hole saw Torque wrench Wrench or spanner 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 received by the indoor unit from that position beep or beep beep receiving tone sounds After that attach remote controller holder 2 to a pillar or wall and install wireless remote controller 12 Note In rooms where inverter type fluorescent lamps are used the signal from the wireless remote controller may not be received 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 4 SPECIFICATIONS Pipe size Power supply 1 Wire specifications 2 thickness 3 4 Pipe length and height difference 5 6 Model Rated Indoor outdoor con i ait Max pipe Max height Insulation MFZ KA25 35VA vooy 59 ue 4 core 29 52 mm 0 8 mm 96 35 mm en MFZ KA50VA 1 5 mm 912 7mm 1 0mm 0 8 mm 1 Connect to the power switch which has a gap of 3 mm or more when open to 5 Be careful not to crush or bend the pipe during pipe bending interrupt the source power phase When the power switch is shut off it must 6 Refrigerant pipe bending radius must
8. connected securely leakage leakage Waving leakage So Ditch Projection co f AETS 2 This projection is located behind the Fig 5 hose fitting when viewing the fitting from the front of the unit 2 9 FRONT PANEL INSTALLATION 1 Open the horizontal vane for the upper air outlet 2 Fit the front panel onto the indoor unit from the front and then push the upper and lower areas that are marked with arrows 3 Push the areas below the upper air outlet and the areas above and below the lower air outlet that are marked with arrows 4 After installing the front panel install the 2 screws below the upper air outlet 3 FLARING WORK AND PIPE CONNECTION 3 1 FLARING WORK Copper Good No good 1 Cut the copper pipe correctly with pipe cutter Fig 1 2 ba pipe 2 Completely remove all burrs from the cut cross section of pipe Fig 3 L Put the end of the copper pipe to downward direction as you E E E 8 remove burrs in order to avoid to let burrs drop in the piping Fig 1 7 i 7 3 Remove flare nuts attached to indoor and outdoor units then put Tilted Uneven Burred them on pipe having completed burr removal Not possible to put Fig 2 them on after flaring work 4 Flaring work Fig 4 5 Firmly hold copper pipe in the dimension i Flaring tool shown in the table Select A mm from the table according to the tool Burr Copper pipe aring too th _ Spare ream
9. d when the stop valve is open air could be drawn in and the pres sure 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 The unit shall be installed in accordance with national wiring regu lations Earth the unit correctly Do not connect the earth to a gas pipe water pipe lightning rod or tel ephone earth Defective earthing could cause electric shock unit This could cause injury 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 in areas where re ception is weak An amplifier may be required for the affected device e In a place as far away as possible from fluorescent and incandescent lights so the infrared remote control can operate the air conditioner nor mally Where the air filter can be removed and replaced easily 1
10. each the set temperature will in crease EMBEDDED INDOOR UNIT SETTING MUST BE PERFORMED e When embedding the indoor unit in a wall restrict the movement of the horizontal vane for the upper air outlet so that it only operates horizontally e If this setting is not performed heat will build up in the wall and the room will not be cooled or warmed properly e Cut the wires on the left and right sides of JRFBL using a pair of nip pers etc as shown below 2 6 CONNECTING WIRES FOR INDOOR UNIT You can connect indoor outdoor lead wire without removing the front grille 1 Open the front grille 2 Remove panel 3 Remove electrical cover 4 Remove cord clamp 5 Pass indoor outdoor unit connecting wire A from the back of the indoor unit and process the end of the wire 6 Loosen terminal screw and connect first the earth wire then 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 7 Firmly tighten the terminal screws to prevent them from loosening After tightening pull the wires lightly to confirm that they do not move 8 Secure indoor outdoor unit connecting wire A and the earth wire with the cord clamp Never fail to hook the left claw of the cord clamp Attach the cord clamp securely 100 or 10
11. er you use 5 Check B pa cutter H Compare the flared work with Fig 6 If flare is noted to be defective cut off the flared section and do Fig 3 flaring work again Clutch type Wing nut type A mm Tightening torque Fig 4 Pipe diameter Nut Clutch Clutch type Wing nut mn es mm mm type tool tool type tool Nem kgfecm Inside is shin for R410A for R22 for R22 Smooth all ing without any around N scratches 6 35 1 4 17 151020 3210177 14010180 k Copper pipe o gt 9 52 3 8 22 010 0 5 1 01015 134 3 to 41 2 350 to 420 Die 012 7 1 2 26 l soto a5 49 010 56 4 500 to 575 Fiare nut Heat 015 88 5 8 29 173 5 to 78 4 750 to 800 i Fig 5 Fig 6 3 2 PIPE CONNECTION Fasten flare nut with a torque wrench as specified in the table When fastened too tight flare nut may brake 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 below as a guideline for indoor unit side union joint section and tighten using two wrench es 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
12. er in the remote controller holder how to clean precautions for operation etc e Recommend the user to read the OPERATING INSTRUCTIONS carefully 5 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 atmos phere 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 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 twice to stop the operation 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 a
13. es and pump down before removing the old air conditioner Remake flare according to the dimension for new refrigerant Units should be installed by licensed contractor according to local code requirements Outdoor units may be different in appearance ACCESSORIES Check the following parts before installation PARTS TO BE PROVIDED AT YOUR SITE 1 Drain hose 1 A Indoor outdoor unit connecting wire 1 2 Remote controller holder 1 B Extension pipe 1 3 Fixing screw for 2 3 5 x 16 mm 2 C Wall hole sleeve 1 Black D Wall hole cover 1 4 Pipe cover 1 E Pipe fixing band 2to5 5 Band 2 F Fixing screw for E 4 x 20 mm 2to5 6 Battery AAA for 12 2 G Piping tape 1 7 Indoor unit mounting bracket 1 H Putty 1 8 Fixing screw for 7 4 x 25 mm 5 Drain hose 9 Wood screw for indoor unit fixation 4 I or soft PVC hose 15 mm inner 1or2 10 Washer of 9 4 dia or hard PVC pipe VP16 11 Felt tape For left or left rear piping 1 J Refrigeration oil 1 12 Wireless remote controller 1 Note 13 Air cleaning filter 1 Place indoor outdoor unit connecting wire A and power supply cord at least 1 m away from the TV antenna wire 2 INDOOR UNIT INSTALLATION 2 1 FIXING OF INDOOR UNIT MOUNTING BRACKET e Find a structural material such as a stud in the wall and fix bracket 7 horizontally with fixing scr
14. ews 8 To prevent bracket 7 from vibrating be sure to install the fixing screws in the holes indicated by gt in the illustration For added support fixing screws may also be installed in other holes Wall 2 2 HOLE DRILLING 65mm KA25 35 TZ 1 Determine the wall hole position 975mm KA50 5 7mm 2 Drill a dia 65 mm hole dia 75 mm for KA50 The outdoor side 7 X should be 5 to 7 mm lower than the indoor side Gy Outdaor 3 Insert wall hole sleeve C side HOLE POSITIONS FOR REAR OR LEFT REAR PIPING FOR RIGHT DOWNWARD OR LEFT DOWN FOR LEFT PIPING FOR RIGHT PIPING The following figure is a front view WARD PIPING of the indoor unit installation location The following figure is a view of the bottom of the indoor unit from above 700 131 131 61 31 4 Bj 600 When the unit is installed on the wall When the unit is installed on the floor 78 K 2 3 INDOOR UNIT PREPARATION Remove the front panel of the indoor unit 1 Push the 2 locations marked PUSH on the upper part of the front grille until a click is heard 2 Open the front grille toward you 3 Remove the 2 screws 4 Grasp the rear horizontal vane at the upper air outlet and open it 5 Push the 3 locations on the top of the front panel and then pull the upper part of the front panel toward you 6 Remove the front panel while lifting it up slightly
15. n electric shock due to dust water etc When installing or relocating the unit make sure that no sub stance other than the specified refrigerant R410A enters the refrigerant circuit Any presence of foreign substance such as air can cause abnormal pressure rise or an explosion 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 gener ated 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 appropri ate 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 run ning 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 refrigerant pipes before starting the compressor If the compressor is started before the refrigerant pipes are connected an
16. nd intended for use in the residential commercial and light industrial environment The product at hand is based on _ Low Voltage Directive 2006 95 EC the following EU regulations e Electromagnetic Compatibility Directive 2004 108 EC afa MITSUBISHI ELECTRIC 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 JG79A128H03
17. re to the right Drain hose Connecting Pipe Installation Install the connecting pipes so that the piping can move slightly to RIGHT DOWNWARD PIPING OTHER PIPING the front back left and right Be sure to insulate the connecting pipes and place them near the rear of the indoor unit so that they do not contact the front panel e Be careful not to crush the connecting pipes when bending them Remove the cover FOR LEFT OR LEFT REAR PIPING Bundle the connecting pipes and drain hose together and then wrap them in felt tape 11 Cut and use the lower side panels on the left and right sides of the in door unit as shown below Smooth the cut edges of the side panels so that they will not damage the insulation coating For left or right piping Installing flush against a wall with molding C Molding Cut the lower side panels to match the height of the molding Start wrapping the piping tape G around the pipes and hose 10 mm inside the indoor unit Fasten the end of the felt tape 11 with a bandage stopper Wrap the felt tape 11 tightly around the pipes and hose starting near where the pipes and hose are routed from the indoor unit The overlap width of the felt tape 11 should not be more than 1 2 of the tape width Make sure that the drain hose is not routed upward Felt tape 11 2 8 DRAIN PIPING If the extension drain hose has to pass through a room be sure to wrap i
18. t with commercially 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 I 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 e When routing the drain piping make sure that the drain hose 1 is routed as shown Fig 4 Insert the drain hose all the way to the base of the drain pan end connection Fig 5 Make sure that the catch of the drain hose is securely hooked onto the projection on the hose fitting of the drain pan After connecting the drain hose be sure to pull the hose to confirm that it is connected securely C Drain Drain hose y hose 70 cm or Hard vinyl chloride Downward more pipe I D 30 mm slope S D i Soft hose ll Insert es I D 15 mm P securely Different Ki N D diameter join Fig 1 Fig 2 Fig 3 ch should face up Do not make drain piping as shown below Drain hose Accumulated gt k Do not raise drain water n i Tip of drain At least Jong hose dipped 50 mm Air Pp F Fa in water al p 7 IN gap s Yd h so WY 2777777 k Pull the hose to confirm Water Water 7 Water i l LU LZ itis
19. tails Checking the remote infrared signal reception Press the ON OFF button on the remote controller 12 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 2 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 automati cally 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 do ing 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 lf 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 3 EXPLANATION TO THE USER Using the OPERATING INSTRUCTIONS explain to the user how to use the air conditioner how to use the remote controller how to remove the air fil ters how to remove or put the remote controll
20. urrent etc E Be sure to use the parts provided or specified parts for the instal lation 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 E 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 E Install an earth leakage breaker depending on the installation place If an earth leakage breaker is not installed it could cause electric shock E Perform the drainage piping work securely according to the instal lation manual If there is defect in the drainage piping work water could drop from the unit soaking and damaging household goods Ns A CAUTION Could lead to serious injury in particular environments when operated incorrectly E Do not touch the air inlet or the aluminum fins of the outdoor E Do not install the outdoor unit where small animals may live 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 a
Download Pdf Manuals
Related Search