TECHNICAL & SERVICE MANUAL. Wall Mounted. Series PKFY PKFY-P20VAM-A PKFY-P25VAM-A R407C R22 SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS. No.

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1 SPLIT-TYPE, HEAT PUMP AIR CDITIERS 00 No. OC TECHNICAL & SERVICE MANUAL Series PKFY Wall Mounted R07C R Indoor unit [Model names] PKFY-P0VAM-A [Service Ref.] PKFY-P0VAM-A CTENTS INDOOR UNIT. SAFETY PRECAUTI. PART NAMES AND FUNCTIS. SPECIFICATI 7. OUTLINES AND DIMENSIS 9. WIRING DIAGRAM 0. REFRIGERANT SYSTEM DIAGRAM 7. TROUBLESHOOTING 8. DISASSEMBLY PROCEDURE 7 9. PARTS LIST 0

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3 SAFETY PRECAUTI Cautions for using with the outdoor unit which adopts R07C refrigerant. Do not use the existing refrigerant piping. -The old refrigerant and lubricant in the existing piping contains a large amount of chlorine which may cause the lubricant deterioration of the new unit. Use low residual oil piping. -If there is a large amount of residual oil (hydraulic oil, etc.) inside the piping and joints, deterioration of the lubricant will result. Store the piping to be used during installation indoors with keep both ends sealed until just before brazing. (Store elbows and other joints in a plastic bag.) -If dust, dirt, or water enters the refrigerant cycle, deterioration of the oil and compressor trouble may result. Use ESTR, ETHER or HAB as the lubricant to coat flares and flange connection parts. Use liquid refrigerant to seal the system. -If gas refrigerant is used to seal the system, the composition of the refrigerant in the cylinder will change and performance may drop. Do not use a refrigerant other than R07C. -If another refrigerant (R, etc.) is used, the chlorine in the refrigerant may cause the lubricant deterioration. Use a vacuum pump with a reverse flow check valve. -The vacuum pump oil may flow back into the refrigerant cycle and cause the lubricant deterioration.

4 [] Service tools Use the below service tools as exclusive tools for R07C refrigerant. No. Tool name Specifications Gauge manifold Only for R07C. Use the existing fitting SPECIFICATIS. (UNF7/) Use high-tension side pressure of.mpa G or over. Charge hose Only for R07C. Use pressure performance of.0mpa G or over. Electronic scale Gas leak detector Use the detector for Ra or R07C. Adapter for reverse flow check. Attach on vacuum pump. Refrigerant charge base. 7 Refrigerant cylinder. For R07C Top of cylinder (Brown) Cylinder with syphon 8 Refrigerant recovery equipment. [] Notice on repair service After recovering the all refrigerant in the unit, proceed to working. Do not release refrigerant in the air. After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant. [] Refrigerant recharging () Refrigerant recharging process Direct charging from the cylinder. R07C cylinder are available on the market has a syphon pipe. Leave the syphon pipe cylinder standing and recharge it. (By liquid refrigerant) Unit Gravimeter () Recharge in refrigerant leakage case After recovering the all refrigerant in the unit, proceed to working. Do not release the refrigerant in the air. After completing the repair service, recharge the cycle with the specified amount of liquid refrigerant.

5 PART NAMES AND FUNCTIS Indoor Unit PKFY-P0VAM-A Filter Air intake grille Air intake Auto Vane Guide vane Air Outlet MA remote controller [PAR-0MAA] Once the operation of the unit is set, subsequent operations can only be performed by pressing the / button repeatedly. Operation buttons TEMP. ADJUSTMENT button This sets the room temperature. The temperature setting can be performed in : units Setting range Cooler 9: to 0: Heater 7: to 8: TIME SETTING button This sets the current time, start time and stop time. AIR SPEED button This sets the ventilation fan speed. / button TIMER button This switches between continuous operation and the timer operation. OPERATI SWITCH button Press this button to switch the cooler, electronic dry (dehumidify), automatic and heater modes. STAND BY DEFROST PAR-0MAA CHECK CENTRALLY CTROLLED C TEMP. TIMER SET CLOCK ERROR CODE Hr. C FILTER CHECK MODE TEST RUN NOT AVAILABLE FUNCTI / FILTER CHECK TEST This switches between the operation and stop modes each time it is pressed. The lamp on this button lights during operation. AIR DIRECTI button This adjusts the vertical angle of the ventilation. FILTER button This resets the filter service indication display LOUVER button This switch the horizontal fan motion and. (Not available for this model.) CHECK-TEST RUN button Only press this button to perform an inspection check or test operation. Do not use it for normal operation.

6 Display CENTRALLY CTROLLED display This indicates when the unit is controlled by optional features such as central control type remote controller. TIMER display This indicates when the continuous operation and time operation modes are set. It also display the time for the timer operation at the same time as when it is set. CLOCK display The current time, start time and stop time can be displayed in ten second intervals by pressing the time switch button. The start time or stop time is always displayed during the timer operation. AIR DIRECTI display This displays the air direction. In this display example on the bottom left, a condition where all display lamps light is shown for explanation purposes although this differs from actual operation. AIR SPEED display The selected fan speed is displayed. ROOM TEMPERATURE display OPERATI MODE display This indicates the operation mode. STAND BY DEFROST CHECK CENTRALLY CTROLLED C TEMP. CLOCK ERROR CODE Hr. C FILTER CHECK MODE TEST RUN NOT AVAILABLE FUNCTI / The temperature of the suction air is displayed during operation. The display range is 8 C to 9 C. The display flashes 8 C when the actual temperature is less than 8 C and flashes 9 C when the actual temperature is greater than 9 C. STANDBY display FILTER CHECK TEST Operation lamp The [STANDBY] symbol is only displayed from the time the heating operation starts unit the heated air begins to blow. PAR-0MAA TIMER SET This lamp lights during operation, goes off when the unit stops and flashes when a malfunction occurs. DEFROST display This indicates when the defrost operation is performed. CHECK MODE TEST RUN display This display lights in the check mode or when a test operation is performed. FILTER display CHECK display This indicates when a malfunction has occurred in the unit which should be checked. SET TEMPERATURE display This displays the selected setting temperature. POWER display This lamp lights when electricity is supplied to the unit. This lamp lights when the filter need to be cleaned. Caution Only the Power display lights when the unit is stopped and power supplied to the unit. When the central control remote control unit, which is sold separately, is used the - button, operation switch button and TEMP. adjustment button do not operate. NOT AVAILABLE is displayed when the Air speed button are pressed.this indicates that this room unit is not equipped with the fan direction adjustment function and the louver function. When power is turned for the first time, it is normal that H0 is displayed on the room temperature indication (For max. minutes). Please wait until this H0 indication disappear then start the operation.

7 SPECIFICATI -. Specification Item Power Unit [,V,Hz PKFY-P0VAM-A Single phase, 0-0-0V, 0Hz Single phase, 0V, 0Hz Cooling capacity kw..8 Heating capacity kw.. Electric characteristic Power Supply Starting Current Cooling Heating Cooling Heating kw kw A A Exterior <munsell symbol> Plastic munsell : <.0Y 8./0.9> Out dimensions Height mm 9 Width mm 8 Depth mm 8 Heat exchanger Cross fin Fan No. Lineflow fan Fan Air flow w External static pressure K/min Pa Fan motor output kw 0.07 Insulator Polyethylene sheet Air filter PP honey comb Pipe dimensions Gas side Liquid side [mm(in.) [mm(in.).7 (/"). (/") Unit drain pipe size [mm PVC pipe VP- connectable (I.D. ) Noise level w db --- Product weight kg 8. Note. Rating conditions Cooling : Indoor D.B. 7 C W.B. 9.0 C Outdoor D.B. C W.B. C Heating : Indoor D.B. 0 C Outdoor D.B. 7 C W.B. C w. Air flow and the noise level are indicated as High-Middium -Middium-Low. 7

8 -. Electrical parts specifications Model Parts name Room temperature thermistor Liquid pipe thermistor Symbol TH TH PKFY-P0VAM-A Resistance 0:/k", 0:/9.k", 0:/.k", :/.k", 0:/.k", 0:/.0k" Resistance 0:/k", 0:/9.k", 0:/.k", :/.k", 0:/.k", 0:/.0k" Gas pipe thermistor Fuse (Indoor controller board) Fan motor (with thermal fuse) Fan motor capacitor Vane motor (with limit switch) Linear expansion valve Power supply terminal block Transmission terminal block TH FUSE MF C MV LEV TB TB Resistance 0:/k", 0:/9.k", 0:/.k", :/.k", 0:/.k", 0:/.0k" 0V.A -Pole Output 7W / RCV7.µF 0V MSFBC0A7 DCV DCV Stepping motor drive Port [. (0~000pulse) EDM-0ME (L, N, ;) 0V 0A (M, M) 0V 0A 8

9 OUTLINES AND DIMENSIS PKFY-P0VAM-A Unit : mm C 78. Air intake dimension Air intake dimension 0 Terminal block for power supply Terminal block for transmission Address board D 0 0 Air intake dimension 9 Air outlet dimension Drain pipe length 0 Gas pipe 0 Liquid pipe B C B A Knock out hole for left - hand side piping Knock out hole for under piping Knock out hole for right - hand side piping Detail of Terminal block D Terminal block for power supply R R Terminal block for transmission 0 0. R 0 R8 R8 R R Installation plate Position detail of the tapping screw and bats at pipe intake Center of gravity hole for installation Air intake Installation plate 00 or more pipe hole Knock out hole Installation space Unit transplant parts 0 or more 0 or more Air intake dimension 0 or more or more for left or left back piping 7 Air outlet angle Air outlet direction Detail of address board 70. Air outlet dimension A Dip switch Address board Terminal block Lotary switch(part No.) Lotary switch(self address) Note. For the installation, be sure to leave some space in case there is fringe at edge of the ceiling. Note. Use the M0 or W/8 bolt for the installation plate. Note. Refer for the specification table it below. Knock out hole for the remote controller wiring Detail of knock out hole (A B C) Knock out hole for the remote controller wiring Secondary Primary : There is no terminal board for MA remote controller. : In case of connecting MA remote controller, use the cable with the connector attached to the indoor unit. Please connect the cable with the connector with the lead wire and connector (Relay connector) for the MA remote controller of indoor controller board. Address board is protected by the plastic cover. For the setting, remark -screw using the screw driver. Refrigerant pipe Liquid pipe Flare connection /F Gas pipe Drain pipe Flare connection /F Connection inner dimension [ 9

10 WIRING DIAGRAM PKFY-P0VAM-A Legend Symbol M.B CN CN CN CN SW SW TH TH A.B SW 0V 0V SW 7890 RD ND DIGIT DIGIT Note. At servicing for outdoor unit, always follow the wiring diagram of outdoor unit..in case of connecting MA-remote controller, please connect MA remote controller cable in an accessorie to the connector. (Remote controller wire is non-polar.).in case of using M-NET, please connect to TB.(Transmission line is non-polar.). Symbols used in wiring diagram above are, : terminal block, : connecter.. The setting of the SW dip switches differs in the capacity. For the detail,refer to the fig: w.. Please set the switch SW according to the power supply voltage. Set SW to 0V side when the power supply is 0 and 0 volts. When the power supply is 0 volts, set SW to 0V side. LED on indoor board for service Mark LED LED Name Indoor controller board Connector Switch ST DIGIT (RED) ADDRESS CN (RED) ADDRESS 8 CN8 7 SW CNECTI NO. See fig: w Meaning Main power supply Power supply for MA-Remote controller Remote switch HA terminal-a Centrally control Remote indication Capacity code Mode selection Thermistor Room temperature,detection (0:/T,:/.T) Pipe temperature,detection/liquid (0:/T,:/.T) SW SW LEV BRN RED BLU ORN YLW WHT 8 MV CN CN 78 CENTRALLY REMOTE CN CN8 CTROL INDICATI CNA CN0 ADDRESS ADDRESS (WHT) (GRN) (BLU) INTAKE (RED) (RED) (RED) Function Symbol Name Symbol Name TH Thermistor Pipe temperature,detection/gas (0:/T,:/.T) TB TB Terminal block Power supply Transmission P.B ZNR FUSE Indoor power board Varistor Fuse (.A) A.B SW<A.B> SW<A.B> Circuit board Switch Address board Mode selection Voltage selection F.C MF Fan phase control Fan motor SW<A.B> SW<A.B> Address setting st digit Address setting nd digit C Capacitor(fan motor) SW<A.B> Connection No. LEV Vane motor Linear expansion valve RED PNK BLU ORN YLW CN0 CNV CN CN CN9 CN HA LEV (BLU) REMOTE (GRN) GAS LIQUID (WHT) CN SWITCH (BLK) (WHT) (WHT) (WHT) N 0FF M.B SW SW LED Main power supply(indoor unit:0-0-0v) power on lamp is lit Power supply for MA-Remote controller on lamp is lit MV TH ORN ORN TH CNM POWER BOARD (BLU) Models PKFY-P0VAM TH CNM POWER BOARD (RED) SW TO MA-REMOTE CTROLLER DC8.7-V MF { BLU FAN CNM (GRN) M-NET (BLU) CNP MIC BOARD (BLU) CNP F.C MIC BOARD (RED) LED P.B Models TO OUTDOOR UNIT BC CTROLLER M-NET REMOTE CTROLLER DC-0V { MM BLU WHT TB RED BLK CND (RED) C ZNR <w> SW PKFY-PVAM RED BLU FUSE 0V.A GRN/YLW TB L N BREAKER (A) TO NEXT INDOOR UNIT PULL BOX FUSE (A) POWER SUPPLY ~/N 0-0-0V 0Hz ~/N 0V 0Hz 0

11 REFRIGERANT SYSTEM DIAGRAM PKFY-P0VAM-A Gas pipe temperature thermistor TH Gas pipe Liquid pipe temperature thermistor TH Strainer (#0mesh) Flare Heat exchanger Room temperature thermistor TH Liquid pipe Linear expansion valve Strainer (#00mesh) Item Gas pipe Models PKFY-P0VAM-A, {.7 (/ ) Liquid pipe {. (/ )

12 7 TROUBLESHOOTING 7-. How to check PKFY-P0VAM-A, Part Name Room temperature thermistor(th) Liquid pipe temperature thermistor(th) Gas pipe temperature thermistor(th) Check points Disconnect the connector, then measure the resistance using a tester. (Surrounding temperature 0 C~0 C) Normal.k'~9.k' Abnormal Open or short (Refer to the next page for a detail.) Vane motor Blue Yellow Red Connect pin No. Fan motor M Orange Pink White Red Black FAN Brown Gray Yellow CN Measure the resistance between the terminals using a tester.(surrounding temperature :.) - Red-Pink Measure the resistance between the terminals using a tester.(surrounding temperature 0:.) Normal White-Black 9' Red-Black 00' Normal - Red-Blue Normal 00' ±7% - Red-Orange - Red-Yellow Abnormal Open or short Abnormal Open or short Without disassembling the parts, measure the electrical pressure of the gray wire(signal line) and brown wire (GND) while the power is on.!at first, check if the electrical pressure is V between the brown wire(gnd) and yellow start running the fan. It is normal if while the fan rotate once, the electrical pressure change from 0V tov then go back to 0V. Abnormal If the electrical pressure stay at around 0V or 0V, it means the fan motor has the defects. Linear expansion valve LEV CN0 White Yellow Orange Blue Red Brown Disconnect the connector then measure the resistance valve using a tester. (Coil temperature 0 C) ()-() White-Red Normal ()-() Yellow-Brown 0' ±0% ()-() Orange-Red ()-() Blue-Brown Abnormal Open or short

13 <Thermistor Characteristic graph> Thermistor for lower temperature Room temperature thermistor(th) Liquid pipe temperature thermistor(th) Gas pipe temperature thermistor(th) 0 0 < Thermistor for lower temperature > Thermistor R0=k' ± % Fixed number of B=80k' ± % Rt=exp { 80( 7+t 7 ) } 0: k' 0: 9.k' 0:.k' :.k' 0:.k' 0:.0k' Resistance (K") Temperature (:) Linear expansion valve Operation summary of the linear expansion valve. Linear expansion valve open/close through stepping motor after receiving the pulse signal from the indoor controller board. Valve position can be changed in proportion to the number of pulse signal. <Connection between the indoor controller board and the linear expansion valve> Controller board DCV Linear expansion valve Brown Blue Red Drive circuit White Red M Brown Yellow Orange [ [ [ [ Blue Orange Yellow White [ [ [ [ Connector(CN0) Note : Since the number of the connector at the controller board side and the relay connector are different, follow the color of the lead wire.

14 <Output pulse signal and the valve operation> Output (Phase) { { { { Output ➁ Linear expansion valve operation D C Closing a valve : Opening a valve : The output pulse shift in above order.. When linear expansion valve operation stops, all output phase become.. At phase interruption or when phase does not shift in order, motor does not rotate smoothly and motor lock, and vibrates. When the switch is turned on, 00 pulse closing valve signal will be send till it goes to A point in order to define the valve position. Valve position (capacity) A E Close Open 000 pulse Opening a valve all the way When the valve move smoothly, there is no noise or vibration occurring from the linear expansion valve ; however, when the pulse number moves from E to A or when the valve is locked, more noise can be heard than normal situation. Noise can be detected by placing the ear against the screw driver handle while putting the screw driver to the linear expansion valve. B Pulse number Extra tightning (80~00pulse) ➂ Trouble shooting Symptom Check points Operation circuit failure of the micro nect LED for checking. Disconnect the connector on the controller board, then con- processor. k LED Linear expansion valve mechanism is locked. Short or breakage of the motor coil of the linear expansion valve. Valve doesn't close completely (thermistor leaking). Wrong connection of the connector or contact failure. Pulse signal will be sent out for 0 seconds as soon as the main switch is turn on. If there is LED with lights on or lights off, it means the operation circuit is abnormal. To check the linear expansion valve, operate the indoor unit in fan mode and at the same time operate other indoor units in cooling mode, then check the pipe temperature <liquid pipe temperature> of the indoor unit by the outdoor multi controller board operation monitor. During fan operation, linear Thermistor Linear expansion valve expansion valve is closed completely and if there are some leaking, detecting temperature of the thermistor will go lower. If the detected temperature is much lower than the temperature indicated in the remote controller, it means the valve is not closed all the way. It is not necessary to exchange the linear expansion valve, if the leakage is small and not making any trouble. Countermeasures Exchange the indoor controller board at drive circuit failure. Motor will idle and make ticking noise when motor is operated Exchange the linear while the linear expansion valve is locked. This ticking sound expansion valve. is the sign of the abnormality. Measure the resistance between the each coil (red-white, red-orange, brown-yellow, brown-blue) using a tester. It is normal if the resistance is in the range of 0'+0%. Check the color of lead wire and missing terminal of the connector. Exchange the linear expansion valve. If large amount of thermistor is leaked, exchange the linear expansion valve. Disconnect the connector at the controller board, then check the continuity.

15 7-. FUNCTI OF DIP SWITCH PKFY-P0VAM-A, Switch Pole Function SW Mode selection SW Capacity code switch ~ Thermistor<Intake temperature> position Filter clogging Provide Not provide Filter sign indication,00 hr 00 hr Air intake (Note ) Not effective Not effective Remote indication switching Thermostat signal indication Fan output indication Humidifier control Fan operation at Heating mode Heat thermostat is operating Air flow at heat thermostat Low (Note ) Extra low (Note ) Setting air flow (Note ) Reset to SW-7 Auto restart function Effective Not effective Power / Effective Not effective MODEL PKFY-P0VAM-A Built-in remote controller SW Operation by switch Indoor unit Remarks Address board <At delivery> (Note ) SW-7=, SW-8= Setting air flow. SW-7=, SW-8= Indoor fan stop. (Note ) It is impossible to intake the fresh air. Indoor controller board Set while the unit is off. <At delivery> Set for each capacity. Heat pump/cool only Cooling only Heat pump Capacity save Available Not available Indoor controller board Set while the unit is off. SW Function selection 7 8 Vane Available Not available Reading change of LEV opening on reversion of after defrosting Not available Available Vane horizontal angle Second setting First setting Vane cooling limit angle setting (Note ) Horizontal angle Down B,C Indoor linear expansion valve opening Effective Not effective Heater degreed up Not effective Effective <At delivery> (Note ) At cooling mode, each angle can be used only hour. 9 Target Superheat setting temperature 9 degreed degreed 0 Target Subcool setting temperature degreed 0 degreed

16 Switch Operation by switch Remarks SW st digit address setting SW nd digit address setting Rotary switch SW SW Address setting should be done when M-NET remote controller is being used Address board Address can be set while the unit is stopped. <At delivery> SW SW Address board SW Connection No. Setting Rotary switch E D C B SW A F This is the switch to be used when the indoor unit is operated with R series outdoor unit as a set. <At delivery> SW E D C B A F SW Voltage selection 0V 0V If the unit is used at the 0V or 0V area, set the voltage to 0V. If the unit is used at the 0V, set the voltage to 0V. Address board <At delivery> 0V 0V

17 8 DISASSEMBLY PROCEDURE OPERATI PROCEDURE. REMOVING THE LOWER SIDE OF THE INDOOR UNIT FROM THE INSTALLATI PLATE Be careful on removing heavy parts. PHOTOS & ILLUSTRATIS Figure Figure When there is removing plate () Remove the corner box at right lower side of the indoor unit. () Insert the removing plate at the back side of the corner box to remove the indoor unit. () Remove the hook by pulling the lower side of the indoor unit down as shown in the figure. When there is no removing plate or it can not be used for some reason. () Remove the front panel. () Insert the screw driver to the corner hole at both left and right side as shown in the figure. () Push it up then, pull down the lower side of indoor unit and remove the hook. Insert the edge Indoor unit removing plate Pull Push Be careful not to damage the airflow adjustment plate with the screw driver. Push Corner hole Down. REMOVING THE FRT PANEL Before removing the front panel, leave the open space at upper side of air flow adjustment plate approximately to cm. () Remove the screw caps then remove the set screws. (Refer to the photo ) () Remove the left side of the front panel, then right side. () After removing the lower side of the front panel a little, remove it as pulling the upper side toward you. Please pay attention to the nozzle assemble. INSTALLING THE FRT PANEL () Insert the lower side of the front panel under the air adjustment plate. () Set the upper side of the front panel. () Set the lower side of the front panel then fix it with the screws. () Press the area indicated as arrow sign and set it to the air conditioner unit. Photo Figure Front panel Set screws Push Airflow adjustment plate 7

18 OPERATI PROCEDURE PHOTOS & ILLUSTRATIS. REMOVING THE INDOOR MICRO CTROLLER BOARD AND INDOOR POWER BOARD () Remove the front panel. (Refer to ) () Remove the electrical box cover (screw 0). (Refer to the photo ) INDOOR MICRO CTROLLER BOARD () Disconnect the following connectors on the indoor micro controller board. (connector in front of) CN0, CNV, CN, CN9, CN CN, CN8, CNA, CN0 () Pull out the indoor micro controller board toward you, then disconnect the rest of connectors. CNM, CNM (See the photo ) INDOOR POWER BOARD () Disconnect the following connectors on the indoor power board. FAN, CNP, CNP, CNM, CND () Remove the screws of the indoor power board, then pull out the indoor power board toward you. (See the photo ) Photo Photo Electrical box cover Electrical box Indoor micro controller board Screw cap Indoor power board Indoor power board Electrical box. REMOVING THE ELECTRICAL BOX () Remove the front panel. (Refer to ) () Remove the electrical box cover. () Pull the nozzle assembly toward you as opening the catch of the nozzle assembly. () Disconnect the indoor/outdoor connector. () Disconnect the following connector on the indoor micro controller board. (See the photo ) CN0, CNV, CN, CN9, CN, CN0, CNA () Disconnect the following connector on the indoor power board. (See the photo ) FAN, CNM, CND (7) Disconnect the ground wire. (8) Pull the disconnected lead wire out from the electrical box. (9) Push up the upper fixture catch to remove the box, then pull the lower fixture and remove it from the box fixture. Photo Indoor micro controller board fixture (upper) Indoor power board fixture (lower) Ground wire set screw Electrical box 8

19 OPERATI PROCEDURE. REMOVING THE NOZZLE ASSEMBLY () Remove the front panel (Refer to ). () Remove the electrical box cover. () Disconnect the connector (CNV) on the indoor micro con troller board. () After unhook the right side of the corner box, press the upper left side and remove the corner box. () Remove the nozzle assemble from the fixture. (See the photo ) () Remove the drain hose. PHOTOS & ILLUSTRATIS Photo Heat exchanger Electrical box Drain hose Nozzle assembly fixture Drain hose fixture. REMOVING THE LINE FLOW FAN AND THE FAN MOTOR () Remove the front panel. (Refer to ) () Remove the nozzle assembly. (Refer to ) () Remove the electrical parts box. () Remove the fixture while pressing the right side of motor fixture catch. (See the photo ) () Remove the left side of the motor fixture. () Loosen the screw which fixes the line flow fan to the fan motor, then remove the fan motor by sliding it to the right side. (See the photo ) (7) Pull the left-hand side of the heat exchanger toward you. (See the photo 7) (8) Remove the line flow fan. Photo Line flow fan set screws Photo 7 Heat exchanger Heat exchanger Fan motor fixture (right) fixture (left) fixture set screws Drain hose Nozzle assembly Heat exchanger fixture (left) 7. REMOVING THE VANE MOTOR () Remove the front panel. () Remove the screw of the electrical parts box cover, and remove the cover. () Remove the screw of the vane motor, and remove the motor from the shaft. () Disconnect the vane motor connector (CNV) on the indoor controller board. Photo 8 Heat exchanger Vane motor Vane motor connect screws Nozzle assembly 8. REMOVING THE LIQUID PIPE THERMISTOR AND GAS PIPE THERMISTOR () Remove the front panel. (Refer to ) () Remove the electrical box cover. () Remove the pipe cover. () Cut the wiring fixed band. () Remove the liquid pipe thermistor and gas pipe thermistor. (See the photo 9) () Disconnect the connector (CN9) (CN) on the indoor micro controller board. Photo 9 Heat exchanger Liquid pipe thermistor Gas pipe thermistor Electrical box 9

20 9 PARTS LIST PANEL PARTS PKFY-P0VAM-A Part number that is circled is not shown in the figure. No. Parts No. Parts Name Specifications PKFY-P0VAM-A R0 A R0 A R0 A 00 R0 A 9 R0 A 09 7 R0 A 0 8 T7W A R0 A BOX FRT PANEL AIR FILTER INTAKE GRILLE SCREW CAP RECEVING COVER GRILLE CATCH CORNER BOX BACK PLATE BRAND LABEL Q'ty / set Remarks (Drawing No.) PCS/SET (DTC7H0) (BC79R798H0) Wiring Recommended Diagram Symbol Q'ty Unit Price Amount 0

21 STAND BY DEFROST CHECK CENTRALLY CTROLLED CLOCK ERROR CODE Hr. NOT AVAILABLE C FILTER CHECK MODE TEST RUN FUNCTI ELECTRICAL PARTS PKFY-P0VAM-A, C TEMP. / FILTER CHECK TEST PAR-0MAA TIMER SET Q'ty / set No. Parts No. Parts Name Specifications PKFY- PKFY- P0VAM-A PVAM-A T7W B00 7 R0 A 0 R0 A R0 A 00 R0 A 7 R0 A R0 07Y 09 T7W 0 9 T7W E 0 FAN GUARD NOZZLE VANE MOTOR AUTO VANE DRAIN HOSE MOTOR BAND VANE SLEEVE FUSE ROOM TEMPERATURE THERMISTOR SET (LEFT, RIGHT) 0V.A 0 T7W B0 9 T7W E00 0 T7W 7 T7W E0 7 ADDRESS BOARD ADDRESS CABLE TERMINAL BLOCK TERMINAL BLOCK P (L, N, ;) P (M, M) ELECTRICAL BOX T7W E0 R0 E7 0 7 R0 A 0 8 R0 E8 0 9 T7W E0 0 0 T7W E 7 R0 A R R0 A 0 POWER BOARD INDOOR CTROLLER BOARD RUBBER MOUNT PIPE TEMPERATURE THERMISTOR PIPE TEMPERATURE THERMISTOR FAN MOTOR LINE FLOW FAN SLEEVE BEARING BEARING MOUNT GAS LIQUID RCV7-AA REMOTE CTROLLER PAR-0MAA Remarks (Drawing No.) (BG00J8G) Wiring Recommended Diagram Symbol Q'ty MV FUSE TH A.B TB TB P.B M.B TH TH MF R.B Unit Price Amount

22 HEAT EXCHANGER PARTS PKFY-P0VAM-A Q'ty / set Wiring Recommended No. Parts No. Parts Name Specifications Remarks PKFY- PKFY- Diagram (Drawing No.) P0VAM-A PVAM-A Symbol Q'ty T7W E8 80 HEAT EXCHANGER With connection pipe T7W E8 80 HEAT EXCHANGER With connection pipe R0 E7 0 LINEAR EXPANSI VALVE LEV Unit Price Amount

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24 HEAD ICE : MITSUBISHI DENKI BLDG., --, MARUNOUCHI, CHIYODA-KU TOKYO 00-80, JAPAN ccopyright 00 MITSUBISHI ELECTRIC ENGINEERING CO., LTD. Distributed in Feb. 00. No. OC 78 Made in Japan New publication, effective Feb. 00 Specifications subject to change without notice

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