TECHNICAL & SERVICE MANUAL. Floor Standing Type. Series PFFY. For use with the R407C & R22. Air-Conditioners For Building Application

Transcription

1 Air-Conditioners For Building Application 00 TECHNICAL & SERVICE MANUAL Series PFFY Floor Standing Type Models <Indoor unit> PFFY-P0VLEM-A,PFFY-P0VLRM-A PFFY-PVLEM-A,PFFY-PVLRM-A PFFY-PVLEM-A,PFFY-PVLRM-A PFFY-P0VLEM-A,PFFY-P0VLRM-A PFFY-P0VLEM-A,PFFY-P0VLRM-A PFFY-PVLEM-A,PFFY-PVLRM-A CTENTS SAFETY PRECAUTIS. FEATURES. PART NAMES AND FUNCTIS. SPECIFICATI. OUTLINES AND DIMENSIS. WIRING DIAGRAM 0. REFRIGERANT SYSTEM DIAGRAM. TROUBLE SHOOTING. DISASSEMBLY PROCEDURE Exposed type Concealed type For use with the R0C & R

2 SAFETY PRECAUTIS. Before installation and electric work s Before installing the unit, make sure you read all the Safety precautions. s The Safety precautions provide very important points regarding safety. Make sure you follow them. s This equipment may not be applicable to EN000-- : 99 and EN000--: 99. s This equipment may have an adverse effect equipment on the same electrical supply system. s Please report to or take consent by the supply authority before connection to the system. Symbols used in the text Warning: Describes precautions that should be observed to prevent danger of injury or death to the user. Caution: Describes precautions that should be observed to prevent damage to the unit. Symbols used in the illustrations : Indicates an action that must be avoided. : Indicates that important instructions must be followed. : Indicates a part which must be grounded. : Indicates that caution should be taken with rotating parts. (This symbol is displayed on the main unit label.) <Color: Yellow> : Beware of electric shock (This symbol is displayed on the main unit label.) <Color: Yellow> Warning: Carefully read the labels affixed to the main unit. Warning: Ask the dealer or an authorized technician to install the air conditioner. - Improper installation by the user may result in water leakage, electric shock, or fire. Install the air unit at a place that can withstand its weight. - Inadequate strength may cause the unit to fall down, resulting in injuries. Use the specified cables for wiring. Make the connections securely so that the outside force of the cable is not applied to the terminals. - Inadequate connection and fastening may generate heat and cause a fire. Prepare for typhoons and other strong winds and earthquakes and install the unit at the specified place. - Improper installation may cause the unit to topple and result in injury. Always use an air cleaner, humidifier, electric heater, and other accessories specified by Mitsubishi Electric. - Ask an authorized technician to install the accessories. Improper installation by the user may result in water leakage, electric shock, or fire. Never repair the unit. If the air conditioner must be repaired, consult the dealer. - If the unit is repaired improperly, water leakage, electric shock, or fire may result. Do not touch the heat exchanger fins. - Improper handling may result in injury. If refrigerant gas leaks during installation work, ventilate the room. - If the refrigerant gas comes into contact with a flame, poisonous gases will be released. Install the air conditioner according to this Installation Manual. - If the unit is installed improperly, water leakage, electric shock, or fire may result. Have all electric work done by a licensed electrician according to Electric Facility Engineering Standard and Interior Wire Regulations and the instructions given in this manual and always use a special circuit. - If the power source capacity is inadequate or electric work is performed improperly, electric shock and fire may result. Securely install the cover of control box and the panel. - If the cover and panel are not installed properly, dust or water may enter the outdoor unit and fire or electric shock may result. When installing and moving the air conditioner to another site, do not charge the it with a refrigerant different from the refrigerant (R0C or R) specified on the unit. - If a different refrigerant or air is mixed with the original refrigerant, the refrigerant cycle may malfunction and the unit may be damaged. If the air conditioner is installed in a small room, measures must be taken to prevent the refrigerant concentration from exceeding the safety limit even if the refrigerant should leak. - Consult the dealer regarding the appropriate measures to prevent the safety limit from being exceeded. Should the refrigerant leak and cause the safety limit to be exceeded, hazards due to lack of oxygen in the room could result. When moving and reinstalling the air conditioner, consult the dealer or an authorized technician. - If the air conditioner is installed improperly, water leakage, electric shock, or fire may result. After completing installation work, make sure that refrigerant gas is not leaking. - If the refrigerant gas leaks and is exposed to a fan heater, stove, oven, or other heat source, it may generate noxious gases. Do not reconstruct or change the settings of the protection devices. - If the pressure switch, thermal switch, or other protection device is shorted and operated forcibly, or parts other than those specified by Mitsubishi Electric are used, fire or explosion may result.

3 . Precautions for devices that use R0C refrigerant Caution: Do not use the existing refrigerant piping. - The old refrigerant and refrigerator oil in the existing piping contains a large amount of chlorine which may cause the refrigerator oil of the new unit to deteriorate. Use refrigerant piping made of C0 (CU-DHP) phosphorus deoxidized copper as specified in the *JIS H00 Copper and copper alloy seamless pipes and tubes. In addition, be sure that the inner and outer surfaces of the pipes are clean and free of hazardous sulphur, oxides, dust/dirt, shaving particles, oils, moisture, or any other contaminant. - Contaminants on the inside of the refrigerant piping may cause the refrigerant residual oil to deteriorate. *JIS: Japanese Industrial Standard Store the piping to be used during installation indoors and keep both ends of the piping 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 ester oil, ether oil or alkylbenzene (small amount) as the refrigerator oil to coat flares and flange connections. - The refrigerator oil will degrade if it is mixed with a large amount of mineral oil. Use liquid refrigerant to fill 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 R0C. - If another refrigerant (R, etc.) is used, the chlorine in the refrigerant may cause the refrigerator oil to deteriorate. Use a vacuum pump with a reverse flow check valve.. - The vacuum pump oil may flow back into the refrigerant cycle and cause the refrigerator oil to deteriorate. Do not use the following tools that are used with conventional refrigerants. (Gauge manifold, charge hose, gas leak detector, reverse flow check valve, refrigerant charge base, vacuum gauge, refrigerant recovery equipment) - If the conventional refrigerant and refrigerator oil are mixed in the R0C, the refrigerant may deteriorated. - If water is mixed in the R0C, the refrigerator oil may deteriorate. - Since R0C does not contain any chlorine, gas leak detectors for conventional refrigerants will not react to it. Do not use a charging cylinder. - Using a charging cylinder may cause the refrigerant to deteriorate. Be especially careful when managing the tools. - If dust, dirt, or water gets in the refrigerant cycle, the refrigerant may deteriorate.

4 FEATURES Series PFFY Floor Standing Type Exposed type Concealed type Models PFFY-P0VLEM-A,PFFY-P0VLRM-A PFFY-PVLEM-A,PFFY-PVLRM-A PFFY-PVLEM-A,PFFY-PVLRM-A PFFY-P0VLEM-A,PFFY-P0VLRM-A PFFY-P0VLEM-A,PFFY-P0VLRM-A PFFY-PVLEM-A,PFFY-PVLRM-A Cooling capacity/heating capacity kw./../../.0./.0./../.0

5 PART NAMES AND FUNCTIS Indoor (Main) Unit Air outlet Air outlet Air inlet Air inlet Exposed type Concealed type Remote controller Operation buttons [PAR-0MAA] Once the controls are set, the same operation mode can be repeated by simply pressing the / button. STAND BY DEFROST PAR-0MAA CHECK CENTRALLY CTROLLED ßC TEMP. TIMER SET CLOCK ERROR CODE Hr. ßC FILTER CHECK MODE TEST RUN NOT AVAILABLE FUNCTI / FILTER CHECK TEST B A 0 C [Room temperature adjustment] Button [Timer/continuous] Button [Selecting operation] Button [Time selection] Button [Time-setting] Button [Louver] Button [Fan speed adjustment] Button 9 [Up/down airflow direction] Button [Ventilation] Button 9 [Checking/built-in] Button 0 [Test run] Button A [Filter] Button B [/] Button C Position of built-in room temperature Never expose the remote controller to direct sunlight. Doing so can result in the erroneous measurement of room temperature. Never place any obstacle around the lower right-hand section of the remote controller. Doing so can result in the erroneous measurement of room temperature.

6 Display D C B A U T Q S E F STAND BY DEFROST CENTRALLY CTROLLED CHECK C TEMP. CLOCK ERROR CODE Hr. NOT AVAILABLE C FILTER CHECK MODE TEST RUN FUNCTI / R P O N M G H IKLJ (A) Current time/timer (B) Centralized control (C) Timer (D) Abnormality occurs (E) Operation mode: COOL, DRY, AUTO, FAN, HEAT (F) Preparing for Heating mode (G) Defrost mode (H) Set temperature (I) Power (J) Louver (K) Not available function (L) Ventilation (M) Function setting mode (N) Test run mode (O) Error check mode (P) Filter sign (Q) Set effective for hr. (R) Sensor position (S) Room temperature (T) Airflow (U) Fan speed

7 SPECIFICATI -. Specification Item Power source Power consumption Cooling capacity Heating capacity Cooling Current Heating External finish (Munsel No.) Dimension Fan Net weight Heat exchanger Type Motor Output Air filter Refrigerant Gas(Flare) pipe dimension Liquid(Flare) Drain pipe dimension Noise level Voltage Frequency Cooling Heating Height Width Depth Type (Low-High) Model Airflow rate (Low-High) External static pressure ~V Hz kw kw kw kw A A mm mm mm kg m /min Pa kw mm mm PFFY-P0 VLEM-A PFFY-P VLEM-A PFFY-P VLEM-A PFFY-P0 VLEM-A PFFY-P0 VLEM-A PFFY-P VLEM-A Note: Note: Galvanized steel plate (Y /) Cross fin( Alminium plate fin and copper tube) Sirocco fanx Sirocco fanx Note: 0 Single phase induction motor PP Honeycomb fabric ø. ø. ø. ø 9. Accessory hose (top end:0) Note: Model Item Power source Voltage Frequency Cooling capacity Heating capacity Cooling Power consumption Heating Cooling Current Heating External finish (Munsel No.) Height Dimension Width Depth Net weight Heat exchanger Type Fan Airflow rate (Low-High) External static pressure Type Motor Output Air filter Refrigerant Gas(Flare) pipe dimension Liquid(Flare) Drain pipe dimension Noise level (Low-High) ~V Hz kw kw kw kw A A mm mm mm kg m /min Pa kw mm mm PFFY-P0 VLRM-A PFFY-P VLRM-A PFFY-P VLRM-A PFFY-P0 VLRM-A PFFY-P VLRM-A Galvanized steel plate Cross fin( Alminium plate fin and copper tube) Sirocco fanx Sirocco fanx Single phase induction motor PP Honeycomb fabric ø. ø. ø. ø 9. Accessory hose (top end:0) PFFY-P0 VLRM-A Note: Note: Note: Note: Note:.Cooling / Heating capacity indicates the maximum value at operation under the following condition. Cooling :Indoor CDB/9 CWB Heating :Indoor 0 C :Outdoor CDB :Outdoor CDB/ CWB.The figures represent a 0V/0Hz or 0V/0Hz unit measured at a point which is m away from the front of the unit and at a height of m from the floor. The noise is approximately db(a) less for a 0V/0Hz or 0V/0Hz unit and approximately db(a) less for a 0V/0Hz or 0V/0Hz unit. The noise is approximately db(a) less when the measurement point is.m away from the front of the unit and at a height of.m from the floor.

8 -. Electrical parts specification Parts name Model Symbol PFFY-P0 VLEM-A VLRM-A PFFY-P VLEM-A VLRM-A PFFY-P VLEM-A VLRM-A PFFY-P0 VLEM-A VLRM-A PFFY-P0 VLEM-A VLRM-A PFFY-P VLEM-A VLRM-A Tranrsformer T (Primary) 0/0Hz 0-0V (Secondary) (.V.A) Room temperature thermistor Liquid pipe thermistor TH TH Resistance 0 C/kΩ,0 C/9.kΩ,0 C/.kΩ, C/.kΩ,0 C/.kΩ,0 C/.0kΩ Resistance 0 C/kΩ,0 C/9.kΩ,0 C/.kΩ, C/.kΩ,0 C/.kΩ,0 C/.0kΩ Gas pipe thermistor TH Resistance 0 C/kΩ,0 C/9.kΩ,0 C/.kΩ, C/.kΩ,0 C/.kΩ,0 C/.0kΩ Fuse (Indoor controller board) Fan motor (with Innerthermostat) Innerthermostat/ thermofuse (Fan motor) Fan motor capacitor Linear expansion valve FUSE 0V.A MF, C LEV -pole OUTPUT W CU-00B-A -pole OUTPUT W CU-00B-A 0 C± C 90 C±0 C.µF X 0V -pole OUTPUT W CU-00B-A -pole OUTPUT 0W CU-00B-A DCV Stepping motor drive port dimension.ω (0~000pulse) EDM-0MD -pole OUTPUT W CRCAB.0µF X 0V -pole OUTPUT 0W CU-00B-A FUSE + C 0 C CUT.µF X 0V Power supply terminal bed TB (L,N, ) 0V 0A Transmission terminal bed TB TB (,),(M,M,S) 00V 0A

9 OUTLINES AND DIMENSIS Indoor Unit PFFY-P0 0 0 VLEM-A Unit:mm Dimensions Model A B C D E(Gas) F(Liquid) PFFY -P0VLEM-A ø. ø. PFFY -PVLEM-A ø. ø. PFFY -PVLEM-A ø. ø. PFFY -P0VLEM-A ø. ø. PFFY -P0VLEM-A ø. ø9. PFFY -PVLEM-A ø. ø9. C A B Remote controller (PAR-FMA)can be built-in. (Program timer can not be built-in together) Refrigeant piping flare connection(liquid) F : HP Hose(accessory) OD ø (TOP ø 0) Level adjusting screw pcs.(attached) Piping space 0 Air supply grille 0 - Wall mounting hole - Floor mounting hole 0 0 ( ) B (0) Air outlet Refrigerant piping flare connection(gas) E : LP Drain pan Strainer 90 Air filter D 0 00 Air inlet

10 F - ø. Duct mounting hole 0 9 Indoor Unit PFFY-P0 0 0 VLRM-A Unit:mm Dimensions Model A B C D E F G(Gas) H(Liquid) PFFY -P0VLRM-A ø. ø. PFFY -PVLRM-A ø. ø. PFFY -PVLRM-A ø. ø. PFFY -P0VLRM-A ø. ø. PFFY -P0VLRM-A ø. ø9. PFFY -PVLRM-A ø. ø9. Refrigerant piping flare connection(gas) G : LP Refrigeant piping flare connection(liquid) H : HP Drain pan Strainer Hose(accessory) OD ø (TOP ø 0) Level adjusting screw pcs.(attached) Air filter A - Wall mounting hole 0 00 B - Floor mounting hole ( ) Air outlet - ø. Duct mounting hole D B Air inlet C 0 E 9

11 0 WIRING DIAGRAM I.B SW SW SW CNA TB(TRANSMISSI TERMINAL BED) TO MA REMOTE CTROLLER A.B SW TB(TRANSMISSI TERMINAL BED) S(SHIELD) TB TO OUTDOOR UNIT BC CTROLLER REMOTE CTROLLER 0 SW CN 0 (Red) (White) (Black) 9 9 CN TO NEXT INDOOR UNIT 9 ABCDEF SW (Connection No.) SW (nd digit) CN SW (st digit) (White) (Black) (White) T AC0V (.A F ) F ZNR (White) X0 X0 X0 CN CN0 CN CN9 CN CN0 CNT CNT CND FAN MF CNM ZNR DSA S.B CN M M L N PE PULL BOX FUSE(A) BREAKER(A) SYMBOL EXPLANATI SYMBOL MF C I.B A.B TB TB TB F T LEV S.B TH NAME Fan motor Capacitor (for MF) Indoor controller board Address board Power source terminal bed Transmission terminal bed Transmission terminal bed Fuse AC0V.A F Transformer Electronic linear expan. valve TH Surge absorber board Thermistor (inlet temp.detection) TH TH SYMBOL TH TH SW(A.B) SW(A.B) SW(A.B) SW(A.B) SW(I.B) SW(I.B) SW(I.B) SW(A.B) X0~0 LEV NAME Thermistor (piping temp.detection/liquid) Thermistor (piping temp.detection/gas) Switch (st digit address set) Switch (nd digit address set) Switch (connection No.set) Switch(for mode selection) Switch(for capacity code) Switch(for mode selection) Switch(for model selection) Switch(for voltage selection) Aux.relay C Capacitor MODELS 0///0. F MODEL 0.0 F MODEL. F POWER SUPPLY ~ 0-0V 0Hz ~ 0-0V 0Hz 0

12 REFRIGERANT SYSTEM DIAGRAM Gas pipe thermistor TH Gas pipe Liquid pipe thermistor TH Flare connection Heat exchanger Linear expansion valve Strainer (#00mesh) Room temparature thermistor TH Strainer (#00mesh) Item Gas pipe Capacity PFFY-P0,,,0VLEM-A PFFY-P0,,,0VLRM-A ø.</f> PFFY-P0,VLEM-A PFFY-P0,VLRM-A ø.</f> Liquid pipe ø.</f> ø9.</f>

13 TROUBLE SHOOTING -. How to check the parts Parts name Room temparature thermistor (TH) Liquid pipe thermistor (TH) Gas pipe thermistor (TH) Disconnect the connector, then measure the resistance using a tester. (Surrounding temperature 0 C~0 C) Normal.kΩ ~9.kΩ Abnormal Open or short Check points (Refer to the thermistor characteristic graph on next page.) Transformer Disconnect the connector and measure the resistance using a tester. CNT T CNT Red Blue White Blue Linear expansion valve White Yellow LEV Orange Blue Red Brown CN0 Fan motor PFFY-P0~0 VLEM-A/VLRM-A Red C White Red C White Protector PFFY-P VLEM-A/VLRM-A CNT()-() CNT()-() Normal App.Ω App.Ω Abnormal Open or short Disconnect the connector then measure the resistance valve using a tester. Refer to the next page for a detail. Normal Abnormal ()-() White-Red Relay connector Black Blue Yellow White Relay connector Black Blue Yellow White ()-() Yellow-Blown 0Ω ±0% ()-() Orange-Red ()-() Blue-Brown Open or short Measure the resistance between the terminals using a tester. Motor terminal or Normal Relay connector Black - White Red - Yellow Yellow - Blue Blue - Black Measure the resistance between the terminals using a tester. Motor terminal or Relay connector Normal P Abnormal Black - White.0 Red - Yellow Yellow - Blue Blue - Black P0,P P P P Open or short (at 0 C) Abnormal Open or short (at 0 C)

14 <Thermistor Characteristic graph> Thermistor for lower temperature Room temparature thermistor(th) Liquid pipe thermistor(th) Gas pipe temparature thermistor(th) Drain sensor(ds) 0 0 < Thermistor for lower temperature > Thermistor R0=kΩ ± % Fixed number of B=0kΩ ± % Rt=exp { 0( ) } +t 0 C kω 0 C 9.kΩ 0 C.kΩ C.kΩ 0 C.kΩ 0.0kΩ Resistance (k Ω ) 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 expasion valve> Controller board DCV Linear expansion valve Brown Blue Red Drive circuit White Red M Brown Yellow Orange ø ø ø ø Blue Orange Yellow White ø ø ø ø Connector(CN0)

15 <Output pulse signal and the valve operation> Output (Phase) ø ø ø ø Output ➁ Linear expansion valve operation D C Closing a valve : Opening a valve : The output pulse shifts 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 will locks 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 (0~00pulse) ➂ Trouble shooting Symptom Operation circuit failure of the micro processor. 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. Check points Disconnect the connector on the controller board, then connect LED for checking. kω LED 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. Motor will idle and make ticking noise when motor is operated while the linear expansion valve is locked. This ticking sound 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 0Ω 0%. 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 expansion valve is closed completely and if there are Thermistor (TH) Linear expansion valve 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. Check the color of lead wire and missing terminal of the connector. Countermeasures Exchange the indoor controller board at drive circuit failure. Exchange the linear expansion vale. Exchange the linear expansion valve. If large amount of refrigeration is leaked, exchange the linear expansion valve. Disconnect the connector at the controller board, then check the continuity.

16 -. Function of Dip-switch Switch Pole Function SW Mode Selection SW Capacity code setting 9 0 ~ Thermistor<Intake temperature detection>position Filter crogging detection Provided Not provided Filter life,00hr 00hr Air intake Effective Not effective Remote indication switching Thermostat signal indication Fan output indication Humidifier control Always operated while the heat is Operated depends on the condition Air flow st Low Extra low Heat thermostat Setting air flow Reset to SW- Auto reset function Effective Not effective Power / Effective Not effective MODELS SW MODELS SW MODELS SW PFFY- P0VLEM-A PFFY- P0VLEM-A PFFY- P0VLRM-A Built-in remote controller PFFY- PVLEM-A PFFY- P0VLEM-A PFFY- PVLRM-A Operation by switch Indoor unit PFFY- PVLEM-A PFFY- PVLEM-A PFFY PVLRM-A Remarks Address board <At delivery> 9 0 Indoor controller board Set while the unit is off. <At delivery> Set for each capacity. PFFY- P0VLRM-A PFFY- PVLRM-A PFFY PVLRM-A SW Function Selection SW Unit ~ Selection Heat pump/cool only Cooling only Heat pump Louver Available Not available Vane Available Not available Vane swing function Available Not available Vane holizontal angle Second setting First setting Vane cooling limit angle setting Horizontal angle Down blow Heating deg up Not effective Effective <At delivery> Indoor controller board Set while the unit is off. <At delivery> (Note) At cooling mode, each angle can be used only hour. Indoor controller board Set while the unit is off. Note :The DipSW setting is effective during unit stopping ( remote controller ) for SW,, and commonly and the power source is not required to reset.

17 Switch Pole Operation by switch Remarks Address board SWA Option Note: ~ As this switch is used by interlocking with SWC,refer to the item of SWC for detail <At delivery> Address board SWC Option Note: (SWA) (Option) (Standard) SWC When attach the optional high performance filter elements (filter casement) to the unit, be sure to attach it to the option side in order to prevent the airflow reducing. <At delivery> (Option) (Standard) SW st digit address setting SW nd degit address setting Note: Rotary switch SW SW 0 9 Address setting should be done when network remote controller (PAR-FMA) is being used. Address can be set while the unit is stopped. <At delivery> SW SW 9 Address board Address board SW Connect ion No. setting Rotary switch E D C B SW A F 9 0 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 9 0 Note: Address board 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. <At delivery> 0V 0V Note: Note :The DipSW setting is effective always after powering ( remote controller ) for SWA and SWC. :The DipSW setting is effective during unit stopping ( remote controller ) for SW,, and

18 DISASSEMBLY PROCEDURE - CTROL BOX (Exposed type PFFY-P VLEM) Be careful removing heavy parts. OPERATING PROCEDURE PHOTOS.Removing the front panel (A) ()Remove the fixing screws(two) of the front panel(a).(fig.) ()Hold the bottom of the front panel with your hands,and gently lift it. The front panel should fall down forward.(fig.).removing the control box cover (B) ()Remove the fixing screws(two) of the cover(b) and remove the cover.(fig.) (A) Fig. (A) Fig. (B) Fig.

19 - THERMISTOR (Gus and liquid piping temperature detection) OPERATING PROCEDURE PHOTOS.Removing the side casing ()Open the control panel cover(a), remove the fixing screws(two) of the securing cover. (Fig. ) ()Pull up the side casing(b). (Fig. ) (B) (A) Fig. (B) Fig..Removing the thermistor ()Remove the fixing screws (three), remove the cover (C) and (D). (Fig. ) ()Remove the thermistor (gas)(e) and the thermistor (liquid)(f). (Fig. ) Fig. (C) (D) (E) Fig. (F)

20 - THERMISTOR (Intake air temperature detection) Be careful OPERATING PROCEDURE PHOTOS.Removing the thermistor ()Remove the thermistor under the control box. Thermistor Fig. - DRAINPAN OPERATING PROCEDURE PHOTOS.Removing the drainpan ()Remove the fixing screw of the side frame by the control box. (Fig. ) ()Slide the drainpan in the direction of the arrow ➀. Fig. ➀ Fig. 9

21 - FAN and FAN MOTOR OPERATING PROCEDURE PHOTOS.Sliding the fan section (Fig.) ()Remove the fixing screws(two) (a). ()Slide the fan section in direction of the arrow ➀..Removing the fan motor (Fig.) ()Remove the fixing screws (two)(b) of the fan casing(a). ()Remove the fan motor shaft fixing screw and remove the fan casing(a) and sirroco fan. ()Remove the fixing screws(two) (c) of the motor fixtures (two) and remove the motor. Notice:In case of the Model(PFFY-P~) stick out the motor shafts on both side of the motor. (a) ➀ (a) Fig. (A) fan motor shaft fixing screw (c) (c) (b) (b) Fig. 0

22 - HEAT EXCHANGER OPERATING PROCEDURE PHOTOS.Removing the casing ()Remove the fixing screws(six) and remove the casing. (Fig. ).Removing the cover, with procedure - (Fig. ).Removing the Heat exchanger ()Remove the fixing screws(four) and remove the heat exchanger support. (Fig. ) ()Remove the heat exchanger, moving from side to side. Fig. Cover Cover Fig. Fig.

23 - CASING (Concealed type PFFY-P VLRM) OPERATING PROCEDURE PHOTOS.Removing the casing ass y ()Remove the fixing screws (nine) of the plate(a) and remove the plate. (Fig. ).Removing the air diffuser ass y ()Remove the fixing screws (eight) of the air diffuser ass y(b) and remove it. (Fig. ) Note: Without this section, almost the disassembly procedures are same as Exposed type (PFFY- P VLEM) and Concealed type (PFFY- P VLRM). (A) Fig. (B) Fig. Fig.

24 HEAD ICE: MITSUBISHI DENKI BLDG., --, MARUNOUCHI, CHIYODA-KU, TOKYO 00-0, JAPAN Issued in May. 00 MEE0K0 Printed in Japan New publication, effective May. 00 Specifications subject to change without notice