Mitsubishi Electric Mr. Slim PUHZ-RP8YHA, Technical & Service Manual

Page 1: ...AGRAM 12 8 WIRING SPECIFICATIONS 13 9 SPECIFICATIONS FOR ELECTRICAL WORK 14 10 REFRIGERANT SYSTEM DIAGRAM 17 11 CAPACITY CURVES 18 12 APPLICABLE EXTENSION PIPE FOR EACH MODEL 19 13 TROUBLESHOOTING 25 14 DISASSEMBLY PROCEDURE 71 15 PARTS LIST 79 16 OPTIONAL PARTS BackCover No OC317 R410A Outdoor unit model names PUHZ RP8YHA PUHZ RP10YHA Service Ref PUHZ RP8YHA PUHZ RP10YHA Model name indication PUH...

Page 2: ...ne in refrige rant can cause deterioration of refrigerant oil etc Use a vacuum pump with a reverse flow check valve Vacuum pump oil may flow back into refrigerant cycle and that can cause deterioration of refrigerant oil etc Use the following tools specifically designed for use with R410A refrigerant The following tools are necessary to use R410A refrigerant Keep the tools with care If dirt dust o...

Page 3: ... 7 Refrigerant cylinder Only for R410A Top of cylinder Pink Cylinder with syphon 8 Refrigerant recovery equipment 1 Cautions for service 1 Perform service after collecting the refrigerant left in unit completely 2 Do not release refrigerant in the air 3 After completing service charge the cycle with specified amount of refrigerant 4 When performing service install a filter drier simultaneously Be ...

Page 4: ...operate After operating the cooling system for about 30 minutes do a pump down work Use a refrigerant collecting device to collect the refrigerant Check the oil condition when collecting the refrigerant Oil is clean Clear to brownish color Oil is dirty Black color When the compressor bearings are glazed rotation scratches are present or the compressor breaks down iron particles or oil deterioratio...

Page 5: ...2 0 24 0 27 0 36 0 Nominal dimensions Flare nut dimensions Outside diameter Dimension B mm R410A w w36 0mm for indoor unit of RP4 5 and 6 R22 Gauge manifold Charge hose Gas leak detector Refrigerant recovery equipment Refrigerant cylinder Applied oil Safety charger Charge valve Vacuum pump Flare tool Bender Pipe cutter Welder and nitrogen gas cylinder Refrigerant charging scale Vacuum gauge or the...

Page 6: ...KA RP2 5FAL 3 PKA RP3FAL 3 PCA RP2 5GA 3 PCA RP3GA 3 Indoor unit Outdoor unit PUHZ RP YHA 8 10 PLA RP2AA 4 PLA RP2 5AA 4 PEAD RP2EA 4 PEAD RP2 5EA 4 PEAD RP2 5GA 4 PKA RP2GAL 4 PKA RP2 5FAL 4 PCA RP2GA 4 PCA RP2 5GA 4 Ratio of distributing Part No Synchronized twin 50 50 MSDD 50WR E Synchronized triple 33 33 33 MSDT 111R E Synchronized quadruple 25 25 25 25 MSDF 1111R E 2 1 1 1 SYSTEM 2 2 SYNCHRON...

Page 7: ...lator always control the optimal refrigerant level regardless of the length 30m max and 5m min of piping The additional refrigerant charging work during installation often causes problems Heretofore it is completely eliminated This unique system improves the quality and reliability of the work done It also helps to speed up the installation time PUHZ RP8YHA PUHZ RP10YHA ...

Page 8: ...Height difference Piping length Notes1 Rating Conditions ISO T1 Cooling Indoor D B 27 C 80 F W B 19 C 66 F Outdoor D B 35 C 95 F W B 24 C 75 F Heating Indoor D B 20 C 68 F Outdoor D B 7 C 45 F W B 6 C 43 F Refrigerant piping length one way 5m 16ft 3 Guaranteed voltage 342 457V 50Hz 4 Above data based on indicated voltage Indoor Unit 1 phase 230V 50Hz Outdoor Unit 3 phase 400V 50Hz 5 Refer to the s...

Page 9: ...0V 15A FUSE FUSE1 2 Solenoid Valve Coil Four way Valve 21S4 Linear Expansion Valve LEV A Reactor DCL Motor Compressor MC High Pressure Switch 63H Low Pressure Switch 63L Fan Motor MF Thermistor Discharge TH4 Thermistor Outdoor TH7 Terminal Block Power Supply TB1 3P S1 S2 S3 Terminal Block Indoor Outdoor TB2 2200 400V 16 30W Main Smoothing Capacitor CB1 CB2 Rush Current Protect Resister RS Thermist...

Page 10: ...ING FOR CONTINUOUS NOISE OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz NC 60 NC 50 NC 40 NC 30 NC 20 NC 70 PUHZ RP8YHA COOLING MODE HEATING 55 0 SPL dB 56 0 LINE 90 80 70 60 50 40 30 20 10 63 125 250 500 1000 2000 4000 8000 APPROXIMATE THRESHOLD OF HEARING FOR CONTINUOUS NOISE OCTAVE BAND SOUND PRESSURE LEVEL dB 0 dB 0 0002 µbar BAND CENTER FREQUENCIES Hz NC 60 NC...

Page 11: ...OUT Wiring Hole 27 Knock OUT 200 94 42 48 Rear Side Service panel Wiring Hole 27 Knock OUT Wiring Hole 40 Knock OUT 110 Piping Hole 122 Knock OUT 2 70 150 1 Piping Hole 122 Knock OUT Wiring Hole 40 Knock OUT 200 435 0 364 780 22 12 28 60 180 65 140 70 120 317 80 123 105 63 161 90 R 1 5 R 1 5 900 700 796 560 750 736 900 750 1798 1519 1457 667 0 98 48 152 40 38 191 19 58 21 380 60 780 736 Wiring Hol...

Page 12: ...12 7 WIRING DIAGRAM PUHZ RP8YHA PUHZ RP10YHA ...

Page 13: ...C Cross section of cable Round 2 5 2 5 1 5 2 5 3 3 4 4 30 1 18 3 30 4 Not applicable 2 Flat Flat Round Wire size mm2 Number of wires Clockwise S1 S2 S3 Clockwise S1 S2 S3 Open Connect S1 and S3 to the opposite angle Not applicable Because center wire has no cover finish From left to right S1 Open S2 S3 Polarity L m 5 3C Flat cable 2 S1 S2 S3 Be sure to connect the indoor outdoor connecting cables ...

Page 14: ...ow it is installed as the initial electric current may cause it to malfunction 3 Power supply cords and indoor unit Outdoor unit connecting cords shall not be lighter than polychloroprene sheathed flex ible cord design 254 IEC 57 1 2 S1 S2 S3 S1 S2 S3 Indoor outdoor unit connection cable Indoor unit Unit power supply Outdoor unit Remote controller L1 L2 L3 N Grounding L1 L2 L3 N 1 2 1 2 S1 Indoor ...

Page 15: ... spots on the shield wire noise may enter into the shield wire because the ground wire and shield wire form one circuit and the electric potential difference occurs due to the impedance difference among grounding spots In case of single spot grounding noise does not enter into the shield wire because the ground wire and shield wire do not form one circuit To avoid communication errors caused by no...

Page 16: ...esses are 00 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 23 4 5 6 7 8 9 0 1 2 50 M NET Address No Setting example Switng setting SW11 ones digit SW12 tens digit OFF ON 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6...

Page 17: ... expansion valve Low pressure switch 63L Compressor Capillary tube1 Capillary tube2 Replace filter High pressure switch 63H Bypass valve Charge plug High pressure Thermistor TH4 Discharge Thermistor TH6 Outdoor 2 phase pipe Thermistor TH7 Outdoor Thermistor TH3 Outdoor pipe Thermistor TH32 Outdoor pipe Heat exchanger 4 way valve Refrigerant GAS pipe connection RP8 1 RP10 1 1 8 Refrigerant LIQUID p...

Page 18: ...ake air dry bulb temperature D B Cooling capacity Heating capacity Heating input Cooling input Outdoor intake air wet bulb temperature W B Outdoor intake air wet bulb temperature W B Indoor intake air wet bulb temperature W B Indoor intake air wet bulb temperature W B Indoor intake air dry bulb temperature D B Indoor intake air dry bulb temperature D B Note These diagrams show the case where the o...

Page 19: ...frigerant charge is required when the pipe length exceeds 20m Refer to Table7 2 Adjusting the amount of refrigerant Check additional refrigerant charging amount referring to table 7 when the liquid pipe diameter is larger than the standard size and table 2 when the pipe of the standard diameter is used Amount of additional refrigerant charge kg 30 m and less 31 40 m and less 41 50 m and less 51 60...

Page 20: ...h m actual pipe length m number of bends o 0 3 m 1 Capacity curves 1 Standard size 70 75 80 85 90 95 100 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 Corrected pipe length m Capacity ratio RP8 10 Heating RP8 10 2 Capacity curves 2 When the gas pipe s diameter is one size smaller than the standard 70 75 80 85 90 95 100 5 10 15 20 25 30 35 40 45 50 55 Corrected pipe length m Capacity ratio Heat...

Page 21: ...0m 20m sw 50m 20m 20m 20m 20m 20m 20m 20m 50m 30m 50m 30m 50m 30m Normal piping 70mw1 30m 20m 20m 20m 20m 20m 20m 50m 30m 50m 30m 50m 30m 70m 30m 70m 30m 70m 30m 70m 30m 70m 30m 70m 30m 70m 30m 70m 30m 70m 30m 70m 30m 70m 30m 50m 20m 50m 20m 50m 20m 50m 20m 50m 20m 50m 20m 50m 20m 50m 20m 50m 20m w2 50m 20m w2 50m 20m w2 50m 20m 20m 20m 20m 20m 20m 20m 50m 30m 50m 30m 50m 30m Normal piping 70mw1 3...

Page 22: ...00 91 91 81 Pipe length gas pipe 22 2 gas pipe 19 05 RP10 Cooling capacity ratio RP8 Cooling capacity ratio 100 100 98 98 94 94 91 91 88 88 86 100 100 95 95 88 gas pipe 25 4 gas pipe 22 2 Table 7 Additional refrigerant amount when the liquid pipe of the larger diameter is used Single Simultaneous Twin Simultaneous Triple Simultaneous Quadruple Table 8 Table 9 Additional refrigerant amount W g 180o...

Page 23: ...frigerant lines of the indoor and outdoor units Handling of the stop valve is shown on the outdoor unit Note Apply refrigerating machine oil over the flare seat surface Do not apply to the threaded portion It will cause the flare nut to loosen Use two wrenches to tighten piping connection Use leak detector or soapy water to check for gas leaks after connections are completed For the insulation of ...

Page 24: ...h SW8 2 on the control board of the outdoor unit to ON to start replacement operation The replacement operation is performed using the cooling system Cool air will flow from the indoor unit during the replacement operation During the replacement operation TESTRUN is displayed on the remote controller and LED1 and LED2 on the control board of the outdoor unit flash together The duration of the repl...

Page 25: ...3 5 TROUBLE SHOOTING BY INFERIOR PHENOMENA The inferior phenomenon is not reoccurring Logged Not logged 1Consider the temporary defects such as the work of protection devices in the refrigerant circuit including compressor poor connection of wiring noise and etc Re check the symptom and check the installation environment refrigerant amount weather when the inferior phenomenon occurred matters rela...

Page 26: ... and will be displayed alternately every second If one of the above operations doesn t function correctly the causes written below should be considered Find causes from the symptoms The below symptoms are under test run mode startup in the table means the display status of w1 written above Remote Controller Display Symptoms in test run mode OUTDOOR BOARD LED Display Cause Remote controller display...

Page 27: ...n indoor and outdoor unit are communicating See the table below for details of the LED display LED 1 2 3 on the indoor controller circuit board 13 2 2 Test run by outdoor unit SW4 The setting of test run ON OFF and its operation mode cooling heating can be set by SW4 on the controller circuit board of outdoor unit Check that SW5 1 is set to OFF before performing test run If SW5 1 is set to ON turn...

Page 28: ...of MELANS can cel the error code by the controller of the MELANS and in case of distant handy combined operation cancel the error code by cancelling distant operation Malfunction diagnosis method at maintenance service Digital control has memory function that memorizes latest error code even if it is cancelled by remote controller or power is shut off so error histories can be searched by followin...

Page 29: ... can be inspected by using this In case unit other than indoor unit such as outdoor unit and con troller of MELANS has an error all the indoor units of the same refrigerant system stop fan operation and outdoor units operate intermittently for 3 minutes 5 To delete error code When something is wrong with air conditioner error code P1 etc is memorized but error code can be deleted after termination...

Page 30: ...shes and the error code is output It takes 3 seconds at most for error code to appear The check mode is cancelled Inspected unit Error code P1 P2 P4 P5 P6 P8 P9 E4 E5 Beep output beep O 1 time beep O 2 times beep O 4 times beep O 5 times beep O 6 times beep O 8 times beep O 2 times Other than above Operation LED 1 sec O 1 time 1 sec O 2 times 1 sec O 4 times 1 sec O 5 times 1 sec O 6 times 1 sec O...

Page 31: ...en remote controller transmits the result of diagnosis to indoor or outdoor unit and receives no response When there might be other problems than diagnosed remote controller 3 There might be noise on transmission path or damage of other remote controllers or indoor units Check the trans mission path and other controllers If the transmission is not possible E3 blinks E3 will be displayed when remot...

Page 32: ...is working due to refriger ant leakage or defective parts 4 Defective outdoor controller circuit board 1 Check connection of 63L connector on outdoor controller circuit board Refer to 13 9 2 Check the 63L side of connecting wire 3 Check refrigerant pressure Charge additional refrigerant Check continuity by tester Replace the parts if the parts are defective 4 Replace outdoor controller circuit boa...

Page 33: ...connected indoor units Abnormal if the number cannot be checked automatically due to mis wiring of indoor outdoor unit connecting wire and etc after power is turned on for 4 minutes 2 Abnormal if outdoor controller circuit board recognizes the number of connected indoor units as 5 units or more 1 Check disconnection or looseness or polarity of indoor outdoor unit connecting wire of indoor and outd...

Page 34: ...r to Judgment and action for F5 7 Check linear expansion valve Refer to 13 6 8 Replace outdoor controller circuit board or FAN controller circuit board Case U2 1102 Abnormal high discharging temperature 1 Abnormal if discharge temperature thermistor TH4 exceeds 125 or 110 continuously for 5 minutes Abnormal if condenser evaporator temperature thermistor TH5 exceeds 40 during defrosting and dischar...

Page 35: ...and during defrosting 1 Disconnection or contact failure of connector TH4 on the outdoor controller circuit board 2 Defective thermistor 3 Defective outdoor controller circuit board 1 Check connection of connector TH4 on the outdoor controller circuit board Check breaking of the lead wire for thermistor TH4 Refer to 13 9 2 Check resistance value of thermistor TH4 or temperature by microcomputer Th...

Page 36: ...econds 1 Stop valve of outdoor unit is closed 2 Decrease of power supply volt age 3 Looseness disconnection or converse of compressor wiring connection 4 Defective fan of indoor outdoor units 5 Short cycle of indoor outdoor units 6 Defective input circuit of out door controller circuit board 7 Defective compressor 8 Defective outdoor power circuit board 1 Open stop valve 2 Check facility of power ...

Page 37: ...ircuit board and M NET board is not available 1 Check disconnection looseness or breaking of connection wire between outdoor controller cir cuit board CNMNT and M NET board CN5 2 Check disconnection looseness or breaking of connection wire between outdoor controller cir cuit board CNMNT and M NET board CND 3 Refer to 4 in 2 2 M NET Wiring method on Service Technical Guide for OCT04 E0 No display R...

Page 38: ...remote con troller is not connected to terminal block for central control TB7 of outdoor unit 2 Check if transmission wore of indoor unit FRESH MASTER or LOSSNAY is not con nected to terminal block for transmission wire of outdoor unit 3 Check if terminal block for transmission wire TB3 and terminal block for central control TB7 is not connected 4 Check transmission wave form or noise on transmiss...

Page 39: ...of transmission connector CN2M of outdoor unit 3 Defective transmitting receiv ing circuit of outdoor unit or indoor unit Always try the followings when the error A7 occurs 1 Shut off the power supply of outdoor unit and indoor unit and FRESH MASTER or LOSS NAY at the same time for two minutes or more and put the power on again If mal function was accidental the unit returns to normal 2 Check addr...

Page 40: ...y of same refrigerant sys tem with LOSSNAY is put off or within two minutes of restart abnormality is detect ed 3 Contact failure of transmission wire of indoor unit of LOSS NAY 4 Disconnection of transmission connector CN2M of indoor unit 5 Defective transmitting receiv ing circuit of indoor unit or LOSSNAY 7 If displayed address or attribute is nonexistent 1 The unit of former address does not e...

Page 41: ...ndoor outdoor connecting wire is nor mal 4Check LED display on outdoor controller circuit board Refer to page 55 and 56 Check protection device connector 63L and 63H for contact failure Refer to 13 9 Error Code Meaning of error code and detection method Case Judgment and action A8 6608 M NET NO RESPONSE Abnormal if a massage was transmitted and there were reply ACK that massage was received but re...

Page 42: ...n operating by the wireless remote controller beep sound is heard however unit does not start operating 1No operation for 2 minutes at most after the power supply ON 2Hand held remote controller operation is prohibited Remote controlling adaptor is connected to CN32 on the indoor controller circuit board Hand held remote controller operation is prohibited by centralised controller etc since it is ...

Page 43: ... resistance between the terminals using a tester Surrounding temperature 20 Solenoid valve coil Four way valve 21S4 Pin number of relay connector is different from that motor connector Motor for compressor MC Linear expansion valve LEV A Normal Abnormal Open or short Open or short Measure the resistance between the terminals using a tester Surrounding temperature 20 Normal 1197 10 Abnormal Open or...

Page 44: ...80K 2 Rt 15exp 3480 273 t 273 0 15k 10 9 6k 20 6 3k 25 5 2k 30 4 3k 40 3 0k 1 1 Thermistor R120 7 465k 2 B constant 4057K 2 Rt 7 465exp 4057 273 t 393 1 1 20 250k 30 160k 40 104k 50 70k 60 48k 70 34k 80 24k 90 17 5k 100 13 0k 110 9 8k High temperature thermistor Thermistor Discharge TH4 0 10 20 30 40 50 20 10 0 10 20 30 40 50 Temperature Resistance K 500 400 300 200 100 0 25 50 75 100 120 Temperat...

Page 45: ...se can be heard than normal situation No noise is heard when the pulse number moves from B to A in case coil is burn out or motor is locked by open phase Noise can be detected by placing the ear against the screw dri ver handle while putting the screw driver to the linear expansion valve LEV M 1 6 4 4 3 2 1 2 1 Red Brown Blue Orange Yellow White 3 4 5 6 Connector LEV A LEV B DC12V Outdoor controll...

Page 46: ...mly Otherwise pipes can bend due to pressure How to attach the coil Hold the lower part of the main body shown as A firmly so that the main body does not move and attach the coil by inserting it downward into the main body Then securely attach the coil stop per to pipe B At this time be careful that stress is not added to lead wire and main body is not wound by lead wire If the stop per is not fir...

Page 47: ...ation the air conditioner will continuously be operated by supplying power and stopping it It can not be turned on or off by remote control and temperature control is not possible 4Do not perform emergency heating operation for an extended period of time If the outdoor unit starts defrosting during this period cold air will blow out from the indoor unit 5Do not perform emergency cooling operation ...

Page 48: ...smission to outdoor power circuit board CN4 LED1 LED2 Operating inspection indicators SW10 Model setup CN31 Emergency operation SW4 Test operation SW6 Model setup SW8 Model setup Replacement operation SW5 Function switch SWP Pump down SW1 Forced defrost detect history record reset refrigerant address CNMNT Connected to outdoor M NET board CNM A control service inspection kit CNVMNT Connected to ou...

Page 49: ...tdoor controller circuit board CN2 1 5 Power circuit board Transmitting signal to the controller board 0 5V DC 2 5 Zero cross signal 0 5V DC 3 4 Not used 6 5 15V DC 7 5 15V DC 5 1 2 6 7 TB U TB V TB W Connect to the compressor MC Voltage among phases 10V 400V AC TB L1 TB L2 TB L3 Connect to the outdoor noise filter circuit board LO1 LO2 LO3 380V 415V AC Note The marks L1 L2 L3 N1 N2 P1 P2 U V and ...

Page 50: ...ct to the terminal block TB1 GD1 Connect to the earth CNAC1 CNAC2 AC220 230 240V Connect to the out door controller circuit board CNAC CNDC Connect to the out door power circuit board CNDC LO1 LO2 LO3 POWER SUPPLY LO1 LO2 LO2 LO3 LO3 LO1 AC380 400 415V OUTPUT Connect to the outdoor power circuit board TB L1 L2 L3 CNCT Primary current Connect to the out door power circuit board CN5 ...

Page 51: ... of POWER MODULE Check of IGBT circuit P U P V P W N U N V N W Note The marks U V and W shown in the diagram above are not actually printed on the board 1 2 1 2 5 3 1 N U W TAB U TAB V TAB W Connect to the Fan motor MF Voltage among phases 20V 380V AC CN6 Control signal from outdoor controller circuit board CN331 CN2 Power supply from outdoor controller circuit board CN332 282V DC 282V DC 565V DC ...

Page 52: ... is changed from OFF to ON After DIP SW1 1 is changed from OFF to ON there is no problem if DIP SW1 1 is left ON or changed to OFF again This depends on the service conditions 13 10 FUNCTION OF SWITCHES CONNECTORS AND JUMPERS 1 Function of switches w1 Power failure automatic recovery can be set by either remote controller or this DIP SW If one of them is set to ON Auto recovery activates Please se...

Page 53: ... SW6 SW8 SW10 SW6 1 SW6 2 SW6 3 SW6 4 SW6 5 SW6 6 SW8 1 SW10 1 SW10 2 Start Short Open Action by the switch operation Model select Emergency operation When power supply ON Normal W 1 W 1 W 1 As for SW8 see also 13 10 1 Function of switches as SW8 sets the replacement operation as well ...

Page 54: ...tioned air of the room How to wiring 1 Make the circuit as shown above with Adaptor for external signal input PAC SC36NA 2 Turn SW1 to on for Low level sound priority mode Turn SW1 to off to release Low level sound priority mode and normal operation b On demand control Local wiring Demand control is available by external input In this mode the outdoor unit stops and indoor unit operates with fan m...

Page 55: ...ting error is detected by remote controller Remote controller signal receiving error is detected by indoor unit Remote controller transmitting error is detected by indoor unit Serial communication error Communication between outdoor controller board and outdoor power board Communication between outdoor controller board and M NET p c board Communication error of high prior signal M NET W1 Remote co...

Page 56: ...Abnormality of current sensor P B Abnormality of power module Open short of discharge thermistor TH4 Open short of outdoor ther mistor TH8 Open short of outdoor thermistors TH3 TH32 TH6 TH7 and TH8 1Check if connectors TH3 TH32 TH4 TH6 and TH7 on outdoor controller circuit board and connector CN3 on outdoor power circuit board are not disconnected 2Measure resistance value of outdoor thermistors A...

Page 57: ...y blinks Inspection code is displayed when compressor stops due to the work of protection devices Display Contents to be inspected When power is turned on F3 F5 F9 E8 E9 EA Eb Ec E0 E7 63L connector red is open 63H connector yellow is open 2 connectors 63H 63L are open Indoor outdoor communication error Signal receiving error Outdoor unit Indoor outdoor communication error Transmitting error Outdo...

Page 58: ... hours or more hundreds digit tens digit and ones digit are displayed by turns Example When 2450 hours 245 10 hours 0 5 secs 0 5 secs 2 secs 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Compressor operating current 0 50 LEV A opening pulse 0 480 0 50 wOmit the figures after the decimal fractions 0 480 When it is 100 pulse or more hundreds digit tens digit and ones digit are displayed by turns Exam...

Page 59: ...y 2 Alternate display of error unit number and code 3 217 When the temperature is 100 or more the hundreds digit tens digit and ones digit are displayed by turns Example When 130 0 5 secs 0 5 secs 2 secs A Code display Code display 0 20 When no error history 0 and are displayed by turns When no error history 0 and are displayed by turns 1 ON 2 3 4 5 6 Thermostat ON time 0 999 Test run elapsed time...

Page 60: ... Display details 0 H P 1 Cooling only 0 Single phase 2 Three phase Setting details Defrosting switch Display details 0 Normal 1 For high humidity Example When heat pump three phase and defrosting normal are set up 20 is displayed 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Indoor pipe temperature Cond Eva TH5 1 Indoor 1 39 88 39 88 When the temperature is 0 or less and temperature are displayed by turns 39 88 W...

Page 61: ...s DC bus voltage 360 760 360 760 When it is 100V or more hundreds digit tens digit and ones digit are displayed by turns V 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 SW2 setting 1 ON 2 3 4 5 6 Display detail Explanation for display Unit 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Indoor setting temperature 17 30 Outdoor pipe temperature Cond Eva TH6 39 88 Outdoor internal heat si...

Page 62: ...or unit Postponement code display Blinking During postponement Lighting Cancellation of postponement 00 is displayed in case of no postponement Code display Error code history 3 Oldest Alternate display of abnormal unit num ber and code When no error history 0 and are displayed by turns Error thermistor display When there is no error thermistor is displayed 3 Outdoor pipe temperature Liquid TH3 TH...

Page 63: ... or less and temperature are displayed by turns Example When 15 C 0 5 secs 0 5 secs 2 secs Outdoor pipe temperature Cond Eva TH6 on error occurring 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns Example When 15 C 0 5 secs 0 5 secs 2 secs Outdoor outside temperature TH7 on error occurring 39 88 39 88 When the temperature is 0 C or less and temperature are dis...

Page 64: ...s Indoor pipe temperature Cond Eva TH5 3 Indoor 3 39 88 39 88 When the temperature is 0 C or less and temperature are displayed by turns When there is no indoor unit 00 is displayed 50 1 1 ON 2 3 4 5 6 Discharge super heat on error occurring SHd 0 255 Cooling TH4 TH6 Heating TH4 Th5 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 1 ON 2 3 4 5 6 Minute 15 1 15 4 Suspensive U9 error detail 1 Display ti...

Page 65: ...1a LED 40 90 When the temperature is 0 C or less and temperature are displayed by turns Example When 10 C 0 5 secs 0 5 secs 2 secs 10 1 ON 2 3 4 5 6 Liquid pipe temperature TH32 40 90 39 88 When the temperature is 0 C or less and temperature are displayed by turns 1 ON 2 3 4 5 6 Indoor pipe temperature Liquid TH2 4 Indoor 4 39 88 39 88 When the temperature is 0 C or less and temperature are displa...

Page 66: ...oor unit with remote controller Remote controller s internal sensor Not supported Supported indoor unit not equipped with outdoor air intake Supported indoor unit equipped with outdoor air intake 240V 220V 230V Auto energy saving operation ON Auto energy saving operation OFF 2 Normal 3 When the compressor operates the humidifier also operates When the fan operates the humidifier also operates Stan...

Page 67: ... by pressing 0 then return to step 2 13 11 1 Selecting functions using the wired remote controller Flow of function selection procedure The flow of function selection procedure is shown below The flow is described in case of setting indoor temperature detecting shown in table 1 on the preceding page Refer to procedure 1 to 0 when actually setting functions PAR 20MAA ON OFF CENTRALLY CONTROLLED ERR...

Page 68: ... exist Enter the correct refrig erant address and unit number at steps 2 and 3 Designated indoor unit starts fan draft operation by pressingE MODE button Check which indoor unit is designated for func tion setting by doing this In addition all the units of the selected refrigerant address start fan draft operation if the unit number is set to 00 or AL Example When the refrigerant address is set to...

Page 69: ...ave occurred Check to see if there are some sources of transmission interference noise nearby 9 9 Registering other settings simultaneously Repeat steps 3 to 8 to make other function settings 0 0 Completing the function settings Press A FILTER and B TEST RUN buttons simultaneously for at least two seconds For modes 15 and higher press J and B simultaneously for at least 2 seconds After a while the...

Page 70: ...twice 3 2 beeps 0 4 seconds each repeated three times If a setting number that cannot be recognized by the unit is entered the setting will turn back to the original setting If the signal was not received by the sensor you will not hear a beep or a double beep may be heard Reenter the setting number 6 Repeat steps 4 and 5 to make an additional setting without changing unit number 7 Repeat steps 3 ...

Page 71: ...l fixing screws 5o10 see photo 2 2 Remove the rear panel by sliding it towards you w It is the panel to remove when you maintain the machine room from the rear side 3 Removing the front panel 1 Remove 7 front panel fixing screws 5o10 see photo 1 2 Remove the front panel by sliding it towards you then upward w It is the panel to remove when you maintain the thermistor and the fan motor w When servi...

Page 72: ...e front panel 3 Disconnect the relay connector of the fan motor lead wire in the electrical parts box 4 Loosen all the clamps for the fan motor lead wire and pull out the wire from the penetration part 5 Remove 4 motor support fixing screws 5o15 Motor support together with the fan motor see photo 4 Note 2 The motor support and the fan motor should be held by two people 6 Remove 4 fan motor fixing ...

Page 73: ... Screw tightening torque 1 7 2 1N m 6 Removing the thermistor Outdoor 2 phase pipe TH6 and thermistor Outdoor TH7 w TH6 and TH7 are replaced together since they are combined together at the connector to the controller circuit board 1 Remove the service panel and the front panel 2 Disconnect the connector TH6 7 4P red from the controller circuit board 3 Loosen all the clamps for the lead wire and c...

Page 74: ... Disconnect the connector SV2 3P blue from the controller circuit board 3 Loosen all the clamps for the lead wire and cut 2 fasteners see photo 7 4 Remove the bypass solenoid valve coil fixing screw M4o6 see photo 9 5 Remove the bypass solenoid valve coil by sliding it upward Linear expansion valve coil 2 Disconnect the connector LEV A 6P white from the controller circuit board 3 Loosen all the cl...

Page 75: ... prevent it from heating 120 or more then braze the pipe non oxidizing braze 11 Removing the linear expansion valve 1 Remove Service panel 3 cover panel fixing screws 5o10 Cover panel see photo 6 Linear expansion valve coil see photo 11 2 valve bed support fixing screws 5o10 then valve bed support see photo 9 4 valve bed fixing screws 5o10 4 stop valve fixing screws 5o16 then valve bed see photo 1...

Page 76: ...cessed easily by removing the right side panel 13 Removing the low pressure switch and the high pressure switch 1 Remove Service panel see photo 1 3 cover panel fixing screws 5o10 Cover panel see photo 6 2 valve bed support fixing screws 5o10 then valve bed support see photo 9 4 valve bed fixing screws 5o10 4 stop valve fixing screws 5o16 then valve bed see photo 15 3 Disconnect the lead wire for ...

Page 77: ... 3 cover panel fixing screws 5o10 Cover panel see photo 6 2 valve bed support fixing screws 5o10 then valve bed support see photo 9 4 valve bed fixing screws 5o10 4 stop valve fixing screws 5o16 then valve bed see photo 15 Terminal cover 3 lead wire fixing screws M5o10 then disconnect the lead wire see photo 15 2 Collect the refrigerant 3 Remove the sound insulation 4 Disengage the welded points o...

Page 78: ...the fan motor then remove the hear sink duct see photo 15 2 Collect the refrigerant 3 Disengage 2 welded points of the accumulator inlet and outlet see photo 17 4 Remove 4 accumulator fixing screws 5o10 then take out the accumulator Note 1 Collect the refrigerant without releasing in the air Note 2 The welded points can be accessed easily by remov ing the rear panel When servicing from the rear si...

Page 79: ... CAP NUT M16 SUPPORT MOTOR SUPPORT FAN MOTOR PROPELLER R01 E01 122 R01 E05 097 R01 E20 130 T7W E26 763 R01 E03 115 1 2 3 4 5 6 RP8 RP10 YHA Part No Specification No Wining Diagram Symbol Recom mended Q ty Price Unit Amount Part Name Q ty set Remarks Drawing No BG02U187H03 MF 1 2 3 4 5 6 ...

Page 80: ...80 STRUCTURAL PARTS PUHZ RP8YHA PUHZ RP10YHA 1 12 6 13 14 15 16 12 18 19 17 22 25 26 24 23 20 21 4 3 2 10 9 8 7 5 11 12 ...

Page 81: ... MITSUBISHI LABEL INVERTER ELECTRICAL PARTS BOX PEDESTAL SENSOR HOLDER SEPARATOR CAP R01 E01 675 R01 E05 662 R01 E06 668 R01 E05 667 R01 E06 658 R01 H75 202 R01 E00 808 R01 E74 202 R01 H76 202 R01 E10 661 R01 E07 667 R01 E03 698 R01 E66 408 R01 E39 409 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 RP8 RP10 YHA Part No Specification No Wining Diagram Symbol Rec...

Page 82: ...82 FUNCTIONAL PARTS PUHZ RP8YHA PUHZ RP10YHA 1 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 19 18 20 ...

Page 83: ...MULATOR THERMISTOR DISCHARGE SOUND INSULATION CAPILLARY TUBE CAPILLARY TUBE T97 410 741 R01 E20 242 R01 E59 401 R01 E06 413 R01 E05 413 R01 E09 410 R01 E08 410 R01 E00 450 R01 30L 450 R01 E07 410 R01 E00 570 R01 E00 417 T7W E01 417 R01 E01 450 R01 E02 450 T7W E07 242 R01 E11 403 R01 E02 490 T7W E06 242 R01 E03 428 T7W E03 208 R01 25T 209 T7W E13 440 R01 E00 201 R01 E19 425 R01 E20 425 1 2 3 4 5 6 ...

Page 84: ...84 ELECTRICAL PARTS PUHZ RP8YHA PUHZ RP10YHA 1 2 3 4 5 6 7 8 9 11 12 13 14 16 10 15 ...

Page 85: ...IN SMOOTHING CAPACITOR ELECTRICAL PARTS BOX WATERPROOFSHEETFORTHEELECTRICALPARTS T7W E23 315 R01 E02 239 R01 E03 239 R01 30L 241 T7W E06 346 T7W E06 716 T7W E22 716 T7W E05 259 R01 E08 233 T7W E11 313 T7W E38 310 T7W E03 254 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 RP8 RP10 YHA Part No Specification No Wining Diagram Symbol Recom mended Q ty Price Unit Amount Part Name Q ty set Remarks Drawing No...

Page 86: ...le Front Rear Left Right 9 52 12 7 Main Sub Distribution pipe Joint pipe Centralized drain kit Air guide Filter dryer A control interface board M NET adapter cCopyright 2004 MITSUBISHI ELECTRIC ENGINEERING CO LTD Distributed in Nov 2004 No OC317 PDF 9 Made in Japan New publication effective Nov 2004 Specifications subject to change without notice HEAD OFFICE MITSUBISHI DENKI BLDG 2 2 3 MARUNOUCHI ...