SERVICE MANUAL MSC-09RV - E1 MU-07RV - MSC-09RV - MU-09RV - MSC-12RV - MU-12RV - MSC-07RV - MUH-07RV - MSC-09RV - MUH-09RV - MSC-12RV - MUH-12RV -

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1 SPLITTYPE,AIR CONDITIONERS SPLITTYPE,HEAT PUMP AIR CONDITIONERS SERVICE MANUAL Wireless type Models E MSC07RV (WH) MU07RV E MSC09RV (WH) MU09RV E MSCRV (WH) MURV Revision: MUX0/8/4RV E has been added. MXZ8/RV E has been added. Noise criteria curves has been added. Performance data has been added. Specification has been partially modified. Refrigerant system diagram has been partially modified. Please void OB7 REVISED EDITIONA E E E No. OB7 REVISED EDITIONB E MSC07RV (WH) MUH07RV E MSC09RV (WH) MUH09RV E MSCRV (WH) MUHRV Multi system type E MSC07RV (WH) MUX0RV E MSC09RV (WH) MUX8RV E MSCRV (WH) MUX4RV E E E E E E Inverter controlled multi system type E MXZ8RV MXZRV E CONTENTS MSC07RV E MSC09RV E MSCRV E NOTE: (Only MXZRV E ) This manual describes technical data of MSC type indoor unit. For other indoor unit refer to the service manuals No. OB9 REVISED EDITIONA of corresponding models.. TECHNICAL CHANGES. PART NAMES AND FUNCTIONS 4. INDOOR/OUTDOOR CORRESPONDENCE TABLE 7 4. INDOOR UNITS COMBINATION 8 5. SPECIFICATION 6. NOISE CRITERIA CURVES 9 7. OUTLINES AND DIMENSIONS 8. WIRING DIAGRAM 8 9. REFRIGERANT SYSTEM DIAGRAM 5 0. PERFORMANCE CURVES 46. MICROPROCESSOR CONTROL 0. SERVICE FUNCTIONS 0. TROUBLESHOOTING 4. DISASSEMBLY INSTRUCTIONS PARTS LIST OPTIONAL PARTS 84

2 TECHNICAL CHANGES MS07NV E MSH07NV MSX05NV E MS09NV E MSH09NV MSX09NV E MSNV E MSHNV MSXNV E E E E } } } MSC07RV E MSC09RV E MSCRV E. Switch SW has added on the indoor electronic control P.C. board. Indoor unit model has changed. Indoor units for COOL only type (MU and MUX) and COOL and HEAT type (MUH and MXZ)are common specifications. Set switch SW according to the type of outdoor unit. Change switch SW for setting AUTO RESTART FUNCTION ON/OFF. Set of switch SW AUTO RESTART FUNCTION :OFF OUTDOOR UNIT MU & MUX type When the units are shipped from the factory, switch SW is as follows. SW: AUTO RESTART FUNCTION OFF SW: MUH type AUTO RESTART FUNCTION :ON SW OUTDOOR UNIT MUH & MXZ type SW. SLEEP MODE function has been removed.. ECONO COOL operation has been added. 4. SWING button is removed, but SWING MODE function is available by VANE CONTROL button. MU07NV E MU07RV E MUH07NV E MUH07RV MU09NV E MU09RV E MUH09NV E MUH09RV MUNV E MURV E MUHNV E MUHRV. Outdoor model has changed. E E E

3 MUX0NV E MUX0RV.Outdoor model name has changed. Refrigerant filling capacity has changed. (.5kg.0kg) MUX8NV E MUX8RV.Outdoor model name has changed. Capillary tube has changed. ([.0O[.4O000 [.0O[.4O00) ([.0O[.4O600 [.0O[.6O00) ([.0O[.4O50 [.0O[.6O00) MUX4NV E MUX4RV.Outdoor model name has changed. Refrigerant filling capacity has changed. (.5+.5kg.0+.0kg)) MXZ8NV E MXZ8RV.Outdoor model name has changed..possibly connected indoor units combination was changed. (MSH09NV() E O MSC09RV E O) (MSH07NV() E + MSHNV() E MSC07RV E + MSCRV E ) MXZNV E MXZRV.Outdoor model name has changed..possibly connected indoor units were changed. (MSH07NV() E MSC07RV E ) (MSH09NV() E MSC09RV E ) (MSHNV() E MSCRV E ) (MSH8NV E MSH8NV E4 ).Control P.C. board has changed. 4.Compressor frequency controll has partly changed. E E E E E

4 PART NAMES AND FUNCTIONS INDOOR UNIT MSC07RV E MSC09RV E MSCRV E Deodorizing filter (gray sponge type) Grille Air inlet Air cleaning filter (white bellows type) Front panel Air filter Remote control receiving section Horizontal vane Vertical vanes Remote controller Operation section Display section (when the front grille is open) Emergency operation switch Operation indicator lamp Receiving section OUTDOOR UNIT MU07RV E MUH07RV E MU09RV E MUH09RV E MURV E MUHRV E Air inlet (back and side) Piping Drain hose Air outlet Drain outlet 4

5 OUTDOOR UNIT MUX0RV E MUX8RV E MUX4RV E MXZ8RV E Air inlet (back and side) Piping Drainage hose Air outlet Drain outlet Air inlet (back and side) Piping Drainage hose Air outlet Drain outlet MXZRV E Air inlet (back and side) Model indication Air outlet 5

6 MU07RV E MU09RV E MURV E MUX0RV E MUX8RV E MUX4RV E WThe remote controller is packed with the outdoor unit (MU& MUH type). Signal transmitting section Operation display section OPERATE /STOP (ON /OFF)button OPERATION SELECT button FAN SPEED CONTROL button ECONO COOL button ONTIMER button CLOCK SET button HR. button MIN. button (TIME SET button) AM ON/OFF CLOCK TOO WARM MODE I FEEL COOL DRY FAN FAN ECONO COOL START PM VANE STOP HR. MIN. CLOCK RESET TOO COOL TEMPERATURE buttons VANE CONTROL button OFFTIMER button RESET button MUH07RV E MUH09RV E MUHRV E MXZ8RV E MXZRV E WThe remote controller is packed with the outdoor unit (MUH& MXZ type). Signal transmitting section Operation display section OPERATE /STOP (ON /OFF)button OPERATION SELECT button FAN SPEED CONTROL button ECONO COOL button ONTIMER button CLOCK SET button HR. button MIN. button (TIME SET button) AM ON/OFF CLOCK TOO WARM HR. MIN. CLOCK RESET TOO COOL MODE I FEEL COOL DRY HEAT FAN ECONO COOL START PM VANE STOP TEMPERATURE buttons VANE CONTROL button OFFTIMER button RESET button 6

7 Combination of the connectable indoor units INDOOR / OUTDOOR CORRESPONDENCE TABLE MXZ8RV MXZRV OUTDOOR UNIT MXZ8RV E OUTDOOR UNIT MXZRV E ( or ) ( or ) ( or )+( or ) 07+( or ) ( or ) ( or )+( or ) 09+( or ) ( or )+( or )+( or ) ( or )+( or ) ( or ) ( or ) ( or )+( or ) ( or ) ( or ) ( or )+( or ) ( or ) ( or )+( or ) There is no combination other than this table. 7

8 4 INDOOR UNITS COMBINATION MXZ8RV NOTE:Electrical data is for outdoor unit only. Indoor units combination Unit A Cooling capacity (kw) Unit B.5.5 Total. (.6.8).5 (.7.0).4 (.8.8) 4.5 (.0 4.5) 4.5 (.9 4.5) Outdoor unit power consumption (kw).0 (0.855.).05 ( ).45 ( ).00 (0.9.00).00 (0.9.00) Current (A) 0V 40V Power factor (%) Indoor units combination Unit A Heating capacity (kw) Unit B..9 Total. (.0 4.0).6 (.0 4.5) 4.0 (. 4.7) 5.8 (. 5.8) 5.8 (.0 5.8) Outdoor unit power consumption (kw).45 ( ).47 (0.69.6).6 ( ).785 ( ).785 ( ) Current (A) 0V 40V Power factor (%)

9 () () () 09+8 ()+() () () () ()+() 07+() (.8.7).8 (.8.) 4.0 (.4.5) 5.0 (.5.4) 4.4 (.05.4) 5.0 (.06.0) 6. (.07.) 7. (.07.6) 5.6 (.06.4) 6.8 (.07.6) 7.8 (.08.6) 8.0 (.08.8) 8.0 (.08.8) 8.0 (.08.8) 6.6 (.78.) 7. (.78.5) 8.0 (.79.0) 8.0 (.79.0) 7.8 (.78.8) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0).00 (0.96.4).77 (0.96.6).4 (.00.6).84 (.00.99).6 (.0.0).88 (.0.).8 (.0.60).74 (.0.60). (.0.60).6 (.0.60).9 (.0.60).8 (.0.60).8 (.0.60).8 (.0.60). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96) Indoor units combination Unit A Unit B Unit C Unit D Cooling capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) 0V 40V NOTE: Electrical data is for outdoor unit only. MXZRV

10 0 Indoor units combination Unit A Unit B Unit C Unit D Cooling capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) 0V 40V (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 7.9 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0) 8.0 (.79.0). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96). (.0.96) () ()+() 09+() ()+() +() ()+() () () () +() () () () +() () () +() NOTE: Electrical data is for outdoor unit only.

11 NOTE: Electrical data is for outdoor unit only () () () 09+8 ()+() () () () ()+() 07+() (..6) 4.0 (.4.) 6.0 (.6.) 7. (.7.5) 6.8 (4.7.) 7.4 (4.7.8) 9. (4.9.7) 9. (4.9.7) 8.0 (4.8.4) 9. (4.9.7) 9. (4.9.7) 9. (4.9.7) 9. (4.9.7) 9. (4.9.7) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6).0 (0.9.8).4 (0.9.5).79 ( ).0 (0.94.).98 (..8). (..).8 (..96).8 (..96).8 (..54).8 (..96).8 (..96).8 (..96).8 (..96).8 (..96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96) Indoor units combination Unit A Unit B Unit C Unit D Heating capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) 0V 40V

12 Indoor units combination Unit A Unit B Unit C Unit D Heating capacity (kw) Total Outdoor unit power consumption (kw) Current (A) Power factor (%) 0V 40V (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (5.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6) 9. (6.0.6).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96).78 (.9.96) () ()+() 09+() ()+() +() ()+() () () () +() () () () +() () () +() NOTE: Electrical data is for outdoor unit only.

13 5 SPECIFICATION Capacity Electrical data Fan motor Special remarks Capacity Electrical data Compressor Fan motor Special remarks Indoor model Function Indoor unit power supply Air flow (Hi) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance(at0:) Dimensions WOHOD Weight Air direction Sound level (Hi) Fan speed (Hi) Fan speed regulator Thermistor RT(at5:) Thermistor RT(at5:) Outdoor model Outdoor unit power supply Capacity Dehumidification Outdoor air flow Power outlet Running current Power input Auxiliary heater Power factor Starting current Compressor motor current Fan motor current Model Output Winding resistance(at0:) Model Winding resistance(at0:) Dimensions WOHOD Weight Sound level Fan speed Fan speed regulator Refrigerant filling capacity(r) Refrigerating oil (Model) K /h A A W % A A " mm kg db rpm k" k" kw R/h K /h A A W A(kW) % A A A Coefficient of performance(c.o.p) W " " mm kg db rpm kg cc MSC07RV E Cooling Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MU07RV E Single phase 040V,50Hz RH5VGCT 650 CR 4.8 CS 5.76 RA6VEB WHTBLK 58 BLKRED o540o (MS56 ) NOTE:Test conditions Cooling : Indoor DB7 C / WB9 C Outdoor DB5 C / WB4 C MSC09RV E Cooling Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MU09RV E Single phase 040V,50Hz RH45VGCT 700 CR 4.0 CS 5.7 RA6VEB WHTBLK 58 BLKRED o540o (MS56 ) MSCRV E Cooling Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MURV E Single phase 040V,50Hz RHVHAT 00 CR. CS.9 RA6VCB WHTBLK 76 BLKRED 4 780o540o (MS56)

14 Capacity Electrical data Fan motor Special remarks Capacity Electrical data Compressor Fan motor Special remarks Indoor model Function Indoor unit power supply Air flow(hi) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance(at0:) Dimensions WOHOD Weight Air direction Sound level (Hi) Fan speed (Hi) Fan speed regulator Thermistor RT(at5:) Thermistor RT(at5:) Outdoor model Outdoor unit power supply Capacity Dehumidification Outdoor air flow Power outlet Running current Power input Auxiliary heater Power factor Starting current Compressor motor current Fan motor current Model Output Winding resistance(at0:) Model Winding resistance(at0:) Dimensions WOHOD Weight Sound level Fan speed Fan speed regulator Refrigerant filling capacity(r) Refrigerating oil (Model) Thermistor RT6(at0:) K /h A A W % A A " mm kg db rpm k" k" kw R/h K /h A A W A(kW) % A A A Coefficient of performance(c.o.p) W " " mm kg db rpm kg cc k" MSC07RV E Cooling Heating Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MUH07RV E Single phase 040V,50Hz RH5VGHT 650 CR 4.8 CS 5.76 RA6VEA WHTBLK 58 BLKRED o540o (MS56).8 MSC09RV E Cooling Heating Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MUH09RV E Single phase 040V,50Hz RH74VGHT 800 CR.0 CS 5.80 RA6VEA WHTBLK 58 BLKRED o540o (MS56) MSCRV E Cooling Heating Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MUHRV E Single phase 040V,50Hz NOTE:Test conditions Cooling : Indoor DB7 C / WB9 C Heating : Indoor DB0 C Outdoor DB5 C / WB4 C Outdoor DB 7 C / WB 6 C RHVHAT 00 CR. CS.9 RA6VCA WHTBLK 76 BLKRED 4 780o540o (MS56)

15 Capacity Electrical data Fan motor Special remarks Capacity Electrical data Compressor Fan motor Special remarks Indoor model Function Indoor unit power supply Air flow(hi) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance(at0:) Dimensions WOHOD Weight Air direction Sound level (Hi) Fan speed (Hi) Fan speed regulator Thermistor RT(at5:) Thermistor RT(at5:) Outdoor model Outdoor unit power supply Indoor unit No. Capacity Dehumidification Outdoor air flow Power outlet Running current Power input Auxiliary heater Power factor Starting current Compressor motor current Fan motor current K /h A A W % A A " mm kg db rpm k" k" kw R/h K /h A A W A(kW) % A A A Coefficient of performance(c.o.p) Model Output W Winding " resistance(at0:) Model Winding " resistance(at0:) Dimensions WOHOD mm Weight kg Sound level db Fan speed rpm Fan speed regulator Refrigerant filling kg capacity(r) Refrigerating oil (Model) cc MSC07RV E Cooling Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MUX0RV E Single phase 040V,50Hz Single Double A or B A+B..o o KH4VLL 650 CR 4.66 CS 8.0 RA6V WHTBLK 5.0 BLKRED o540o (MS56) MC: 70 (MS56) MC: 70 (MS56) NOTE:Test conditions Cooling : Indoor DB7 C / WB9 C Outdoor DB5 C / WB4 C 5 Single A or B or C MSC09RV E Cooling Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MUX8RV E Single phase 040V,50Hz Double A+B or A+C.o 0.8o o KH4VLLo 650o CR 4.66 CS 8.0 RA6V50 WHTBLK 7. BLKYLW 65.0 YLWRED o605o 54 5 (Hi) (Hi) Double B+C.o 0.o Triple A+B+C.+.o o o

16 Capacity Electrical data Fan motor Special remarks Capacity Electrical data Compressor Fan motor Special remarks Indoor model Function Indoor unit power supply Air flow(hi) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance(at0:) Dimensions WOHOD Weight Air direction Sound level (Hi) Fan speed (Hi) Fan speed regulator Thermistor RT(at5:) Thermistor RT(at5:) Outdoor model Outdoor unit power supply Indoor unit No. Capacity Dehumidification Outdoor air flow Power outlet Running current Power input Auxiliary heater Power factor Starting current Compressor motor current Fan motor current K /h A A W % A A Coefficient of performance(c.o.p) Model Output W Winding " resistance(at0:) Model Winding " resistance(at0:) Dimensions WOHOD mm Weight kg Sound level db Fan speed rpm Fan speed regulator Refrigerant filling kg capacity(r) Refrigerating oil (Model) cc " mm kg db rpm k" k" kw R/h K /h A A kw A(kW) % A A A MSC09RV E (Unit C,D) MSCRV E (Unit A,B) Cooling Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O Cooling Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O MUX4RV E Single phase 040V,50Hz Single Double Double C or D A+B C+D Single A or B o 0.5o o 0.o Double A+C or A+D B+C or B+D Triple A+B+C or A+B+D.95o+. 0.5o Triple A+C+D or B+C+D.9+.55o.+0.o Four A+B+C+D.95o+.55o 0.5o+0.o MC: RHVHA MC: RH74VGH RHVHA: 00 RH74VGH: 800 RHVHA: CR. CS.9 RH74VGH: CR.0 CS 5.80 RA6V5 WHTBLK 4.0 BLKRED 5.0 0o750o MC: 50 (MS56) MC: 00 (MS56) NOTE:Test conditions Cooling : Indoor DB7 C / WB9 C Outdoor DB5 C / WB4 C

17 For inverter multi system Capacity Electrical data Fan motor Special remarks Indoor model Function Indoor unit power supply Air flow(hi) Power outlet Running current Power input Power factor Starting current Fan motor current Model Winding resistance(at0:) Dimensions WOHOD Weight Air direction Sound level (Hi) Fan speed (Hi) Fan speed regulator Thermistor RT(at5:) Thermistor RT(at5:) W MSC07RV E Cooling Heating Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O W MSC09RV E Cooling Heating Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O W MSCRV E Cooling Heating Single phase 040V,50Hz RC4V9BA WHTBLK 9 BLKRED 5 850O78O NOTE:Test conditions Cooling : Indoor DB7 C / WB9 C Heating : Indoor DB0 C Outdoor DB5 C / WB4 C Outdoor DB 7 C / WB 6 C W Refer to the above specification when MSC07RV E,MSC09RV E and MSCRV E is connected with MXZ8RV E and MXZRV E as inverter controlled multi system units. 7

18 Capacity Electrical data Compressor Fan motor Special remarks Outdoor model Outdoor unit power supply Indoor unit number Function Capacity Dehumidification Outdoor air flow Power outlet Running current Power input Auxiliary heater Crankcase heater Power factor Starting current Compressor motor current Fan motor current Coefficient of performance(c.o.p) Model Output Winding resistance(at0:) Model Winding resistance(at0:) Dimensions WOHOD Weight Sound level (Hi) Fan speed (Hi) Fan speed regulator Refrigerant filling capacity(r) Refrigerating oil (Model) Thermistor RT6 Thermistor RT6 Thermistor RT6 Thermistor RT64 Thermistor RT65 Thermistor RT66,67 Thermistor RT68,69 kw R/h K /h A A W A(kW) W % A A A W " " mm kg db rpm kg cc k" k" k" k" k" k" k" Electrical data is for only outdoor unit. Cooling 4.5 (.6~4.5) (855~000) MXZ8RV E Single phase 040V,50Hz RHV07FEM (ROTARY) 00 UV.95 VW.95 WU.95 RA6V50 WHTBLK 54.0 BLKYLW 68.0 YLWRED o650o95 (+0) (MS56) 0.0 (at 5:).4 (at 00:) 7.9 (at 70:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) Heating 5.8 (.0~5.8) (6~785) Cooling 8.0 (.8~9.0) (960~960) MXZRV E Single phase 040V,50Hz or CHV5FAA (SCROLL) 000 UV 0.54 VW 0.54 WU 0.54 RA6V60 WHTBLK 78.7 BLKYLW 6.9 YLWBLU.7 BLURED 8.6 0o0o0 (+5) (MS56).4 (at 00:) 0.0 (at 5:) 7.0 (at 50:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) 0.0 (at 5:) Heating 9. (.~0.6) (~960) TEST CONDITIONS COOLING INDOOR DB7.0 C WB9.0 C OUTDOOR DB5.0 C WB4.0 C HEATING INDOOR DB0.0 C OUTDOOR DB 7.0 C WB 6.0 C 8

19 6 NOISE CRITERIA CURVES MSC07/09RV NOTCH Hi (0/40V) SPL(dB(A)) 6 LINE MSCRV NOTCH Hi (0/40V) SPL(dB(A)) 9 LINE Test conditions. Cooling : DB7: WB9: Heating : DB0: WB : Test conditions. Cooling : DB7: WB9: Heating : DB0: WB : OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC70 NC60 NC50 NC40 NC0 NC0 OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC70 NC60 NC50 NC40 NC0 NC0 BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz MU07/09RV NOTCH SPL(dB(A)) HI (0V) 44 HI (40V) 45 LINE MURV NOTCH Hi (0/40V) SPL(dB(A)) 49 LINE Test conditions. Cooling : DB7: WB9: Test conditions. Cooling : DB7: WB9: OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR NC70 NC60 NC50 NC40 NC0 OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR NC70 NC60 NC50 NC40 NC0 0 0 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC0 0 0 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC0 BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz 9

20 MUH07/09RV NOTCH Hi (0/40V) SPL(dB(A)) 47 LINE MUHRV NOTCH Hi (0/40V) SPL(dB(A)) 49 LINE Test conditions. Cooling :DB5: WB4: Heating :DB 7: WB 6: Test conditions. Cooling :DB5: WB4: Heating :DB 7: WB 6: OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC70 NC60 NC50 NC40 NC0 NC0 OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC70 NC60 NC50 NC40 NC0 NC0 BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz MUX0RV NOTCH SPL(dB(A)) Hi (0V) 46 Hi (40V) 47 LINE MUX8RV NOTCH Hi (0/40V) SPL(dB(A)) 5 LINE Test conditions. Cooling :DB5: WB4: Test conditions. Cooling :DB5: WB4: OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR NC70 NC60 NC50 NC40 NC0 OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR NC70 NC60 NC50 NC40 NC0 0 0 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC0 0 0 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC0 BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz 0

21 MUX4RV NOTCH Hi (0/40V) SPL(dB(A)) 49 LINE Test conditions. Cooling :DB5: WB4: OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE BAND CENTER FREQUENCIES, Hz NC70 NC60 NC50 NC40 NC0 NC0 MXZ8RV NOTCH COOL SPL(dB(A)) 45 LINE MXZRV NOTCH COOL(0V) SPL(dB(A)) 45 LINE HEAT 46 COOL(40V) 47 HEAT(0V) 46 HEAT(40V) 48 Test conditions. Cooling :DB5: WB4: Heating :DB 7: WB 6: Test conditions. Cooling :DB5: WB4: Heating :DB 7: WB 6: OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR NC70 NC60 NC50 NC40 NC0 OCTAVE BAND SOUND PRESSURE LEVEL, db re 0.00 MICRO BAR NC70 NC60 NC50 NC40 NC0 0 0 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC0 0 0 APPROXIMATE TERESHOLD OF HEARING FOR CONTINUOUS NOISE NC0 BAND CENTER FREQUENCIES, Hz BAND CENTER FREQUENCIES, Hz

22 7 MSC07RV E MSC09RV E OUTLINES AND DIMENSIONS INDOOR UNIT 88 Installation plate Indoor unit Unit: mm Air in 7 or more 89 5 Installation plate { Wall hole [65 Liquid line [6.50.5m Gas line [9.50.4m Insulation [7 O.D [ I.D Drain hose [6 (Connected part O.D) Air out 78 Insulation [8 Power supply cord Lead to right.0m Lead to left 0.m Wireless remote controller MSCRV E INDOOR UNIT 88 Installation plate Indoor unit Air in or more 89 5 Installation plate { Wall hole [65 Liquid line [6.50.5m Gas line [9.50.4m Insulation [7 O.D [ I.D Drain hose [6 (Connected part O.D) Air out 78 Insulation [8 Power supply cord Lead to right.0m Lead to left 0.m Wireless remote controller

23 MU07RV E MUH07RV E MU09RV E MUH09RV E MURV E MUHRV E OUTDOOR UNIT REQUIRED SPACE A Outdoor unit 0cm or more 0cm or more Unit: mm 09 Air in cm or more If clearance behind the outdoor units only 40B or 50B side A must be fully open. 40cm or more 5cm or more Air in Drainage holes [ 47 0 Air out 5 Service panel Liquid refrigerant pipe joint Refrigerant pipe (flared) [6.5 Gas refrigerant pipe joint Refrigerant pipe (flared) [9.5 (MU07/09RV) (MUH07/09RV) [.7 (MURV) (MUHRV)

24 OUTDOOR UNIT MUX0RV E 0 Drainage 4 hole [6. Air in Air out Air in Wiring hole Rear side REQUIRED SPACE Unless any obstacle exists in front,right and left sides. 0cm or more 0cm or more 50cm or more Unless any obstacle exists in right, left and rear sides. Unit: mm 0cm or more Unit A 5cm or more Service panel Bolt pitch holes 0 ø Bolt pitch for installation Stop valve /4F Stop valve /8F MUX8RV E 57 Air in 5 5 REQUIRED SPACE Unless any obstacle exists in front, right 4 holes0 and left sides. 4 0cm or more 0cm or more 0cm or more A 9 Air in B 4 Drain holes [ 6. Air out Electrical wiring entrance (Rear) cm or more Unless any obstacle exists in right,left, and rear sides. 0 5cm or more C 86 5 Stop valve /4F 605 Liquid side union /4F Bolt pitch for installation Service port Stop valve A /8F 54.6 Gas side union /8F Service portbc 4

25 OUTDOOR UNIT MUX4RV E Unit: mm UShape noched hols (Base bolt M0) Air in Air in Air out Oval hols(å~6) (Base bolt M0) Handle for moving Handle for moving Wiring hole Liquid pipe (flared É 6.5) Gus pipe (flared É.7) Gus pipe (flared É 9.5) 5

26 Necessary surrounding clearance 00 MXZ8RV E OUTDOOR UNIT Necessary surrounding clearance for concentrated installation. Leave overhead clearance fully Air in Air in Leave overhead clearance fully 0 0 Leave front clearance fully 00 Air out Max. 0 units Space for servicing Handle for monving Rear piping hole Side Rear airintake airintake Handle for moving 505 Outlet guide mounting hole B A Handle for moving Liquid pipe (flared 6.5) Oval hols ( ) (Base bolt M0) Ground terminal Gas pipe (flared 9.5) Drain hole Drain hole UShape noched hols (Base bolt M0) R6 7 Max. 5 Base bolt length To drain water in a mass, use optional drain pan and drain socket. Drain pan : PAC98DP,PACSA44DP Drain socket : PACSA46DS Unit: mm

27 .Installation space More than 500 More than 00 More than 0 More than 00 More than 50 More than 500 Veranda Base bollt length Less than 5 Base Rubber cushion OUTDOOR UNIT MXZRV E Note : Leave front and both sides clearance fully. Note : Leave front and overhead clearance fully. Note : Leave front, overhead and both clearance fully..service space More than Ushape notched holes (Base bolt M0) 7 More than 0 More than 500 More than 50 More than 500 Service space Air in Air out Air in 7 40 (6) 55 (6) Oval hole (Base bolt M0) [ 9.5 (flared) /8 (C, D unit) [.7 (flared) / (A, B unit) Handle for moving Air in Air in Indoor and outdoor connect wiring 45 hole 88 0 D unit connection C unit connection B unit connection A unit connection 7 Liquid pipe [ 6.5 (flared) /4 Unit: mm

28 8 WIRING DIAGRAM MSC07RV E MSC09RV E MSCRV E INDOOR UNIT TO OUTDOOR UNIT CONNECTING FOR MUH OR MXZ TYPE V FOR MU OR MUX TYPE V PE TB L N POWER SUPPLY CORD ~/N 040V 50Hz BRN BLU CIRCUIT BREAKER MODELS WIRING DIAGRAM GRN/YLW BRN RED BLU WHT BLK CN 5 MV 5 TAB CN0 CN0 LD0T 5 HIC TRANS F NR SR4 ELECTRONIC CONTROL P.C. BOARD POWER MONITOR, RECEIVER P.C.BOARD REMOTE CONTROLLER CN CN CN C CN RT RT BLK GRY YLW BRN WHT RED MF SYMBOL C F HIC MF NAME SYMBOL NAME SYMBOL NAME INDOOR FAN CAPACITOR FUSE(.5A) MV NR VANE MOTOR VARISTOR SR4 TB DC/DC CONVERTER RT ROOM TEMPERATURE THERMISTOR INDOOR FAN MOTOR RT INDOOR COIL THERMISTOR SOLID STATE RELAY TERMINAL BLOCK NOTE:. About the outdoor side electric wiring refer to the outdoor unit electric wiring diagram for servicing.. Use copper conductors only. (For field wiring). Symbols below indicate. /: Terminal block, : Connector 8

29 MU07RV E MU09RV E MURV E OUTDOOR UNIT MODELS WIRING DIAGRAM FROM INDOOR UNIT CONNECTING V POWER SUPPLY ~/N 040V 50Hz TB N WHT BLK CIRCUIT BREAKER TB L BRN PE BLU GRN/YLW 5C 5C NO COM BRN WHT WHT F C DSAR WHT C WHT BLU RED RED S BLK WHT BLK RED C MC MF R SYMBOL NAME SYMBOL NAME SYMBOL NAME C COMPRESSOR CAPACITOR F FUSE(A) TB,TB TERMINAL BLOCK C OUTDOOR FAN CAPACITOR MC COMPRESSOR(INNER THERMOSTAT) 5C CONTACTOR DSAR SURGE ABSORBER MF OUTDOOR FAN MOTOR(INNER THERMOSTAT) NOTE:. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only. (For field wiring). Symbols below indicate. /: Terminal block, : Connector MUH07RV E MUH09RV E MUHRV E OUTDOOR UNIT FROM INDOOR UNIT CONNECTING V POWER SUPPLY ~/N 040V 50Hz MODELS WIRING DIAGRAM CIRCUIT BREAKER GRN/YLW TB RED N BLK BRN TB L BRN SYMBOL NAME SYMBOL NAME SYMBOL NAME C C65 DSAR F6 IC88 COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR SURGE ABSORBER FUSE(A) DC/DC CONVERTER MC MF NR6 RT6 SR6 COMPRESSOR(INNER THERMOSTAT) OUTDOOR FAN MOTOR(INNER THERMOSTAT) VARISTOR DEFROST THERMISTOR SOLID STATE RELAY TB,TB X6 S4 5C TERMINAL BLOCK REVERSING VALVE COIL RELAY REVERSING VALVE COIL CONTACTOR NOTE:. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only. (For field wiring). Symbols below indicate. /: Terminal block, : Connector 9 N PE BLU DSAR BLU RT6 CN70 F6 TAB0 CN66 IC88 5C 4 TRANS C X6 S4 BLK BLK NR6 CN7 SR6 X6 C65 4 CN7 DEICER P.C. BOARD C WHT RED S MC BLK RED WHT BLK R MF

30 OUTDOOR UNIT MODEL MUX0RV E POWER SUPPLY ~ / N 040V 50Hz TB L N PE BRN BRN BLU BRN NO NO 5C COM 5C WHT COM WHT F WHT WHT TB 5C WHT C C RED S MC R FROM INDOOR UNIT No.A CONNECTING V FROM INDOOR UNIT No.B CONNECTING V CIRCUIT BREAKER GRN/YLW TB WHT X BLK GRY X ORN BRN F BRN BLU BLU X YLW TB YLW 5C 4 X RED TB RED 5C 4 BLU R BLU BLU R BLU BLU TB C WHT BLU R BLU WHT BLU RED BLK WHT BLK RED MF SYMBOL C C F F MC MF NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CAPACITOR TB,TB,TB TERMINAL BLOCK OUTDOOR FAN CAPACITOR X RELAY(A) 5C FUSE(A) FUSE(A) X R RELAY(B) BYPASS VALVE SOLENOID COIL 5C 5C COMPRESSOR R SOLENOID COIL(A) OUTDOOR FAN MOTOR R SOLENOID COIL(B) OVERCURRENT RELAY (INNER THERMOSTAT) COMPRESSOR CONTACTOR(A) COMPRESSOR CONTACTOR(B) NOTE:. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only. (For field wiring) 0

31 OUTDOOR UNIT MODEL MUX8RV E POWER SUPPLY ~ / N 040V 50Hz FROM INDOOR UNIT No.A CONNECTING V FROM INDOOR UNIT No.B CONNECTING V FROM INDOOR UNIT No.C CONNECTING V TB L N PE CIRCUIT BREAKER GRN/YLW YLW 5CA RED GRY X ORN WHT X BLK BRN BRN BLU F BRN BRN BRN BRN BRN 4 NO X 4 BLU X 4 5C BLU TB RED YLW 5C WHT 4 5CA BLU BLU GRY F BLU BLU RED 5C R COM YLW 5C R WHT BLU 8 7 X F4 BLU BLU TB WHT GRY BLU WHT TB YLW BRN BLU X X 5 BLU BLU WHT WHT 5 R 8 7 GRY X X 4 X 4 RED 6 6 TB BLU C BLU RED C S BLK BLK R RED C S R MC 5C MC 5C RED RED ORN ORN WHT WHT BLK BLK 4 YLW YLW 5 C WHT C WHT MF SYMBOL C C C F F F4 MC MC MF NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CAPACITOR(A) COMPRESSOR CAPACITOR(B,C) OUTDOOR FAN CAPACITOR FUSE(A) FUSE(A) FUSE(A) COMPRESSOR(A) COMPRESSOR(B,C) OUTDOOR FAN MOTOR(INNER THERMOSTAT) TB TERMINAL BLOCK TB,TB TERMINAL BLOCK X RELAY(B) X FAN MOTOR RELAY(A) X FAN MOTOR RELAY(B,C) X RELAY(C) R SOLENOID COIL R SOLENOID COIL(B) R SOLENOID COIL(C) OVER CURRENT RELAY(A) 5C (INNER THERMOSTAT) OVER CURRENT RELAY(B,C) 5C (INNER THERMOSTAT) 5CA COMPRESSOR CONTACTOR(A) 5C COMPRESSOR CONTACTOR(B) 5C COMPRESSOR CONTACTOR(C) NOTE:. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only. (For field wiring)

32 OUTDOOR UNIT MODEL MUX4RV E POWER SUPPLY ~/N 040V 50Hz CIRCUIT BREAKER FROM INDOOR UNIT No.A CONNECTING V FROM INDOOR UNIT No.B CONNECTING V FROM INDOOR UNIT No.C CONNECTING V FROM INDOOR UNIT No.D CONNECTING V TB L N PE GRN/YLW YLW TB X YLW BRN BRN 4 5C BRN TB0 4 5C BRN BRN ORN TB X ORN WHT TB X WHT GRY TB4 X4 GRY BRN F BRN BRN BRN BRN BRN X X X X4 BLU R BLU BRN BLU BLU R BLU BLU BLU R BLU BLU BLU 4 5C4 4 5C BLU WHT WHT ORN 5C BLU ORN 5C BLU TB8 BLU BLU ORN BLU 5C BLU BLU BLU WHT WHT TB9 BLU 7 X 8 TB5 WHT WHT RA BLU BLU BLU BLU BLU ORN X 8 BLU 7BLU BLU BLU BLU R4 BLU BLU BLU BLU ORN BLU 5C4 RB TB6 BLU WHT TB7 BLU WHT RED C BLK WHT RED C C BLK X 5 BRN S S WHT C MC R C MC R X 5 GRY RED ORN ORN WHT WHT YLW BLK MF SYMBOL C C C F MC MC MF NAME SYMBOL NAME SYMBOL NAME COMPRESSOR CAPACITOR(A,B) TB TERMINAL BLOCK 5C COMPRESSOR RELAY(C) OUTDOOR FAN CAPACITOR(C,D) TB~TB0 TERMINAL BLOCK 5C4 COMPRESSOR RELAY(D) OUTDOOR FAN CAPACITOR FUSE(.5A) COMPRESSOR(A,B) (INNER THERMOSTAT) COMPRESSOR(C,D) (INNER THERMOSTAT) X X X X4 X X RELAY(A) RELAY(B) RELAY(C) RELAY(D) FAN MORTOR RELAY(A,B) FAN MORTOR RELAY(B,C) R R R R4 RA RB SOLENOID COIL(A) SOLENOID COIL(B) SOLENOID COIL(C) SOLENOID COIL(D) SOLENOID COIL SOLENOID COIL OUTDOOR FAN MOTOR 5C COMPRESSOR RELAY(A) (INNER THERMOSTAT) 5C COMPRESSOR RELAY(B) NOTE:. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only. (For field wiring)

33 POWER SUPPLY 040V ~ / N 50Hz FROM INDOOR UNIT CONNECTING V INDOOR UNIT (B) INDOOR UNIT (A) TB PE GRN/YLW N L CIRCUIT BREAKER TB RED N N BLU BRN BLU RED BLU GRN BRN LD6 LDE LD6 NF6 4 NF6 4 L WHT T80 WHT DS6 V U MC W BLK BLK ~ + WHT WHT + C67 RED RED RED ~ RED BLK BLK R65 BLU TR C6RED LD7 L6 LD7 RED BuPEuPBvPEvPBwPEwP + C6 P U LD74 V N W +~ LD7 C64 LD77 BLU BuNEuNBvNEvNBwNEwN S4 ~ BLU DS6 BRN 6 YLW CN80 CN6 CN6 4 TAB YLW FUSE CN7 CN6 C YLW 4 FUSE X67 6 RED 5 BLU ELECTRONIC CONTROL SSR6 X60 4 P.C.BOARD RED CT6 BLU 4 X64 5 CN76 CN77 CN68 CN66 CN68 CN68 CN64 CN67 NR AR6 4 R64 RELAY P.C.BOARD LEV A LEV B RT6 RT6 RT64 RT65 RT66 RT67 RT6 HPS BLU RED TB6 TB6 LD6 F6 BLU BRN BLK LD64 BLK WHT CN94 WHT BLK CN60 CN6 BLK WHT TBAC TBAC BLU ORN YLW WHT RED ORN RED BLU ORN YLW WHT RED BLK BLU BLK BLK RED BLK BLK RED BLU GRN YLW ORN RED BRN BLU GRN YLW GRY GRY GRY GRY RED GRY GRY GRY GRY RED ORN WHT BLK GRY GRY YLW RED RED MF CN70 BRN RED ORN YLW GRN BLU OUTDOOR UNIT MODELS MXZ8RV E SYMBOL AR6 CT6 C6 C6 C64 C65 C67 DS6,6 FUSE FUSE F6 HPS NAME SYMBOL NAME SYMBOL NAME SURGE ABSORBER L REACTOR RT6 CURRENT TRANSFORMER LEV A,B EXPANSION VALVE POWERFACTOR CAPACITOR L6 CMC COIL RT64 CERAMIC CAPACITOR MC COMPRESSOR CERAMIC CAPACITOR INDOOR FAN MOTOR MF RT65 INDOOR FAN CAPACITOR (INNER THERMOSTAT) SMOOTHING CAPACITOR NF6,6 NOISE FILTER RT66 DIODE MODULE NR6 VARISTOR FUSE(A) DEFROST TEMPERATURE RT6 RT67 FUSE(.5A) THERMISTOR FUSE(.5A) DISCHARGE TEMPERATURE RT6 R64 HIGH PRESSURE SWITCH THERMISTOR FIN TEMPERATURE THERMISTOR GAS PIPE TEMPERATURE B. THERMISTOR GAS PIPE TEMPERATURE A. THERMISTOR SUCTION TEMPERATURE THERMISTOR EVAPORATION TEMPERATURE THERMISTOR CURRENTLIMITING RESISTOR SYMBOL R65 SSR6 TB TR T80 X60,67 X64 S4 NAME CURRENTDETECTING RESISTOR SOLID STATE RELAY TERMINAL BLOCK POWER TRANSISTOR MODULE TRANSFORMER FAN MOTOR RELAY RELAY REVERSING VALVE SOLENOID COIL NOTE:. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only. (For field wiring)

34 4 POWER SUPPLY ~/N 040V 50Hz FROM INDOOR UNIT CONNECTING V CIRCUIT BRAKER INDOOR UNIT (A) INDOOR UNIT (B) INDOOR UNIT (C) INDOOR UNIT (D) TB PE L N GRN/YLW BLK BLU TB N N N N BLU RED X BLK BLU ORN BLU YLW BLU BRN REDR BLK X64 0 BRN CN70 CN60 CN60 CN60 CN604 GRY CN TB4 LD6 LD6 LDE GRN/YLW CN CN85 DS6 RED DS6 + C6 ORN + ORN A K L C6 C6 + RED + RED BLK WHT YLW WHT YLW L6 LD6 LD64 LDB CN 6 4 CN CT 6 CN85 LDB F9 CN SSR6 SSR6 CN9 CN9 4 RED RED S4 BLU BLU S SSR6 WHT CH NOISE FILTER P.C.BOARD X6 C65 WHT X6 RED ORN WHT BLK YLW BLU 456 MF6 CN794 CN7 CN X6 4 CN CN705 ELECTRONIC CONTROL P.C. BOARD CN704 CN CN50 CN CN55 TAB6 YLW F80 (A) T80 CN TAB6 CN7 TAB64 TAB65 CT6 TAB66 YLW YLW U BLK V W RED WHT BRN GRY CN55 RED BRN BLU ORN YLW WHT BLK BLK ORN ORN CN55 X66 X66 X65 X67 X67 X65 RELAY P.C. BOARD WHT WHT 6H RED BRN BLU ORN YLW WHT RED BRN BLU ORN YLW WHT RED BRN BLU ORN YLW WHT RED RED BLK BLK BLK BLK GRY GRY GRY GRY GRY GRY GRY GRY I.P.M P.C. BOARD MC CN554 CN55 OUTDOOR UNIT MODELS MXZRV E GRY GRY BLK BLK GRY GRY GRY GRY SYMBOL C6 C6,6 C65 CH CT6,6 DS6 DS6 F80 F9 L L6 LEV A~D LEV A LEV B NAME POWER FACTOR CAPACITOR SMOOTHING CAPACITOR OUTDOOR FAN CAPACITOR CRANKCASE HEATER CURRENT TRANSFORMER DIODE MODULE DIODE STACK FUSE (A) FUSE (A) REACTOR COMMON MODE CHOKE COIL EXPANSION VALVE LEV C SYMBOL MC MF6 R RT6 RT6 RT6 RT64 RT65 RT66,67 RT68,69 SSR6,6 SSR6 LEV D 6H 6L RT6 RT66 RT68 RT6 RT64 RT67 RT69 RT6 RT65 NAME COMPRESSOR OUTDOOR FAN MOTOR (INNER FUSE) RESISTOR DISCHARGE TEMPERATURE THERMISTOR DEFROST TEMPERATURE THERMISTOR FIN TEMPERATURE THERMISTOR EVAPORATION TEMPERATURE THERMISTOR SUCTION TEMPERATURE THERMISTOR GUS PIPE TEMPERATURE THERMISTOR GUS PIPE TEMPERATURE THERMISTOR SOLENOID COIL RELAY CRANKCASE HEATER RELAY NOTE:. About the indoor side electric wiring refer to the indoor unit electric wiring diagram for servicing..use copper conductors only. (For field wiring) SYMBOL T80 TB,,4 X6,6,6 X64,65 X66,67 S S4 6H 6H 6L NAME TRANSFORMER TERMINAL BLOCK FAN MOTOR RELAY RELAY RELAY SOLENOID COIL R.V. COIL HIGH PRESSURE SWITCH HIGH PRESSURE SWITCH LOW PRESSURE SWITCH

35 9 REFRIGERANT SYSTEM DIAGRAM MSC07RV E MU07RV E MSC09RV E MU09RV E INDOOR UNIT Refrigerant pipe [9.5 (Option) (with heat insulator) Stop valve (with service port) Unit:mm OUTDOOR UNIT Indoor heat exchanger Indoor coil thermistor RT Flared connection Outdoor heat exchanger Room temperature thermistor RT Compressor Flared connection Strainer Refrigerant pipe [6.5 (Option) (with heat insulator) Capillary tube [.0x[.4x600 Refrigerant flow in cooling Unit:mm MSCRV E INDOOR UNIT Refrigerant pipe [.7 (Option) (with heat insulator) MURV E OUTDOOR UNIT Indoor heat exchanger Indoor coil thermistor RT Flared connection Stop valve (with service port) Outdoor heat exchanger Room temperature thermistor RT Compressor Flared connection Stop valve Strainer Refrigerant pipe [6.5 (Option) (with heat insulator) Capillary tube [.0x[.6x600 Refrigerant flow in cooling 5

36 MSC07RV E MUH07RV E MSC09RV E MUH09RV E INDOOR UNIT Refrigerant pipe [ 9.5 (Option) (with heat insulator) Muffler Reversing valve Unit:mm OUTDOOR UNIT Indoor heat exchanger Indoor coil thermistor RT Flared connection Stop valve (with service port) Strainer Defrost thermistor RT6 Outdoor heat exchanger Room temperature thermistor RT MSCRV E INDOOR UNIT Flared connection Refrigerant pipe [6.5 (Option) (with heat insulator) Refrigerant pipe [.7 (Option) (with heat insulator) Strainer Stop valve Muffler Accumulator Compressor Capillary tube [.0x[.6x600(MUH07RV) [.0x[.6x400(MUH09RV) Check valve Reversing valve Capillary tube [.0x[.4x800 ( pcs) Reversing valve coil heating ON cooling OFF Capillary tube [.0x[.4x600(MUH07RV) [.0x[.4x550(MUH09RV) Refrigerant flow in cooling Refrigerant flow in heating MUHRV E Unit:mm OUTDOOR UNIT Indoor heat exchanger Indoor coil thermistor RT Flared connection Stop valve (with service port) Strainer Defrost thermistor RT6 Outdoor heat exchanger Room temperature thermistor RT Accumulator Compressor Capillary tube [.0x[.4x500(pcs) Capillary tube [.0x[.8x00 Flared connection Strainer Capillary tube [.0x[.6x700 Reversing valve coil heating ON cooling OFF Refrigerant pipe [6.5 (Option) (with heat insulator) Stop valve Check valve Refrigerant flow in cooling Refrigerant flow in heating 6

37 MAX. REFRIGERANT PIPING LENGTH { { { Refrigerant piping Models Max. length : m A MSC07RV E MU07RV E MSC09RV E MU09RV E MSCRV E MURV E 0 5 Piping size O.D : mm Gas Liquid Length of connecting pipe : m Indoor unit Outdoor unit Gas 0.4 Gas 0 Liquid 0.5 Liquid 0 { { { Models MSC07RV E MUH07RV E MSC09RV E MUH09RV E MSCRV E MUHRV E Refrigerant piping Max. length : m A 0 5 Piping size O.D : mm Gas Liquid Length of connecting pipe : m Indoor unit Outdoor unit Gas 0.4 Gas 0 Liquid 0.5 Liquid 0 MAX. HEIGHT DIFFERENCE Indoor unit Height difference should be within 5m regardless of which unit, indoor or outdoor position is high. w Max. Height difference 5m Refrigerant Piping Max.length A Outdoor unit ADDITIONAL REFRIGERANT CHARGE(R : g) { { { { { { Models Outdoor unit precharged 7m MSC07RV E MU07RV E MSC09RV E MU09RV E MSCRV E MURV E Models Outdoor unit precharged 7m MSC07RV E MUH07RV E MSC09RV E MUH09RV E MSCRV E MUHRV E Refrigerant piping length (one way) 0m 5m 45 0 Calculation : Xg=5g/m x(a7)m Refrigerant piping length (one way) 0m 5m Calculation : Xg=50g/m 5 x(a7)m 7

38 MSC07RV E MUX0RV E Unit : mm INDOOR UNIT OUTDOOR UNIT Room temperature thermistor RT Refrigerant pipe 9.5 (/8) (option) (With insulation) Solenoid valve R UNIT A Indoor heat exchanger Stop valve with service port Capillary tube.6 x,000 Flared connection Indoor coil thermistor RT Refrigerant pipe 6.5 (/4) (option) (With insulation) Solenoid valve R Compressor Room temperature thermistor RT Refrigerant pipe 9.5 (/8) (option) (With insulation) Stop valve Capillary tube.4 x 400 Capillary tube.4 x 00 Outdoor heat exchanger UNIT B Indoor heat exchanger Indoor coil thermistor RT Flared connection Refrigerant pipe 6.5 (/4) (option) (With insulation) Stop valve with service port Stop valve Solenoid valve R Capillary tube.4 x 400 Refrigerant flow MAX. REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE Indoor unit A MSC07RV E Indoor unit B MSC07RV E Max. length difference 5m Outdoor unit MUX0RV E Additional piping max. length 0m ADDITIONAL REFRIGERANT CHARGE (R:g) Outdoor unit refrigerant piping length (one way,unit total) MSX0RV E precharged (g) 7m 8m 9m 0m m m m 4m 5m A unit+ B unit 000g PIPING PREPARATION Table below shows the specifications of pipes commercially available. A UNIT No. and B UNIT Pipe Outside diameter Insulation mm inch thickness Insulation material For liquid 6.5 /4 8 mm Heat resisting foam plastic For gas 9.5 /8 8 mm specific gravity Ensure that the refrigerant pipes are well insulated to prevent condensation. Refrigerant bending radius must be 0cm or more. 8

39 Unit : mm MSC09RV E INDOOR UNIT MUX8RV E OUTDOOR UNIT Room temperature thermistor RT Refrigerant pipe 9.5</8> (option) (With insulation) UNIT A MSC09RV E Indoor heat exchanger Flared connection Stop valve with service port Indoor coil thermistor RT Stop valve Compressor(A) Room temperature thermistor RT Refrigerant pipe 6.5</4> (option) (With insulation) Refrigerant pipe 9.5</8> (option) (With insulation) Capillary tube.4 00 Solenoid valve R Outdoor heat exchanger UNIT B MSC09RV E Indoor heat exchanger Indoor coil thermistor RT Room temperature thermistor RT Flared connection Refrigerant pipe 6.5</4> (option) (With insulation) Refrigerant pipe 9.5</8> Stop valve with service port Solenoid valve R Capillary tube.6 00 Capillary tube.6 00 Capillary tube.6,000 Compressor(B,C) Stop valve with service port UNIT C MSC09RV E Indoor heat exchanger Flared connection Solenoid valve R Refrigerant flow Indoor coil thermistor RT Refrigerant pipe 6.5</4> (option) (With insulation) Capillary tube

40 MSX8RV E MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE Indoor unit A MSC09RV E Indoor unit B MSC09RV E Indoor unit C MSC09RV E LA H LB H LC H Outdoor unit MUX8RV E UNIT No. Pipe length Height difference (H) No. of bends Max. limits A B C LA LB LC 0m 0m 0m LB + LC Total 5m 5m 5m 5m 0 0 Total 0 5 Note: The length of piping to individual units (A,B,C) should not exceed 0 meters. If units B and C are linked, the maximum combined length of piping should not exceed 5 meters. ADDITIONAL REFRIGERANT CHARGE (R:g) A unit Outdoor unit precharged Refrigerant piping length (one way) 7m 8m 9m 0m 750g B unit + C unit Outdoor unit precharged 7m 8m Refrigerant piping length (one way, unit total) 9m 0m m m m 4m 5m 750g PIPING PREPARATION Table below shows the specifications of pipes commercially available. UNIT No. Pipe Outside diameter mm inch Insulation thickness Insulation material A, B and C unit For liquid For gas 6.5 /4 9.5 /8 8mm 8mm Heat resisting foam plastic specific gravity Ensure that the refrigerant pipes are well insulated to prevent condensation. Refrigerant bending radius must be 0cm or more. 40

41 MSC09RV E MUX4RV E Unit : mm MSCRV E INDOOR UNIT OUTDOOR UNIT Room temperature thermistor RT Refrigerant pipe {.7 (/) (option) (With insulation) Solenoid valve RA UNIT A MSCRV E Indoor heat exchanger Flared connection Stop valve with service port Capillary tube {.6 x,000 Indoor coil thermistor RT Refrigerant pipe {6.5 (/4) (option) (With insulation) Solenoid valve R Compressor Room temperature thermistor RT Refrigerant pipe {.7 (/) (option) (With insulation) Stop valve Capillary tube {.6 x 40 Capillary tube {.8 x 60 UNIT B MSCRV E Indoor heat exchanger Flared connection Stop valve with service port Solenoid valve R Indoor coil thermistor RT Room temperature thermistor RT Refrigerant pipe {6.5 (/4) (option) (With insulation) Refrigerant pipe {9.5 (/8) (option) (With insulation) Stop valve Capillary tube {.6 x 40 Solenoid valve RB Outdoor heat exchanger UNIT C MSC09RV E Indoor heat exchanger Flared connection Stop valve with service port Capillary tube {.6 x,000 Indoor coil thermistor RT Refrigerant pipe {6.5 (/4) (option) (With insulation) Solenoid valve R Compressor Room temperature thermistor RT Refrigerant pipe {9.5 (/8) (option) (With insulation) Stop valve Capillary tube {.6 x 650 Capillary tube {.6 x 400 UNIT D MSC09RV E Indoor heat exchanger Flared connection Stop valve with service port Solenoid valve R4 Indoor coil thermistor RT Refrigerant pipe {6.5 (/4) (option) (With insulation) Stop valve Capillary tube {.6 x 650 Refrigerant flow 4

42 MSX4RV E MAX.REFRIGERANT PIPING LENGTH & MAX. HEIGHT DIFFERENCE Indoor unit A Indoor unit B Indoor unit C Indoor unit D MSCRV E MSCRV E MSC09RV E MSC09RV E LA H LB H LC H LD H Outdoor unit MUX4RV E UNIT No. Pipe length Height difference (H) No. of bends Max. limits A B C D LA LB LC LD 0m 0m 0m 0m LA + LB LC + LD Total 0m Total 0m 0m 0m 0m 0m Total 5 Total 5 Note: The length of individual units (A,B,C,D) should not exceed 0 meters. If units A and B or C and D are linked, the maximum combined length of piping should not exceed 0 meters. ADDITIONAL REFRIGERANT CHARGE (Rg) UNIT No. Outdoor unit Refrigerant piping length (one way, unit total) precharged (g) m m m m m m m m m m m m m m m m m m m m m A unit + B unit 000g C unit + D unit 000g PIPING PREPARATION UNIT No. Pipe Outside diameter mm inch Insulation thickness Insulation material A C and and B D unit unit For liquid For gas For liquid For gas 6.5 /4.7 / 6.5 /4 9.5 /8 8mm 8mm 8mm 8mm Heat resisting foam plastic specific gravity 4

43 MXZ8RV E Indoor unit A Indoor unit B Indoor unit A Indoor unit B 6.5 Strainer 6.5 Strainer Gas pipe thermistor Gas pipe thermistor Expansion valve(lev) Expansion valve(lev) Service port (high pressure) Capillary tube 4.0X.4X 00 Suction temperature thermistor RT66 Capillary tube 4.0X.4X 00 Discharge temperature thermistor RT6 High pressure switch Ball valve with service port Ball valve with service port Compressor Reversing valve 9.5 Muffler Evaporation temperature thermistor RT67.0X 0.6X500 Strainer Refrigerant flow in cooling Refrigerant flow in heating Accumlator Capillary tube Defrost thermistor RT6 Service port (Low pressure) Reversing valve coil heating ON cooling OFF Charge port Outdoor heat exchanger Capillary tube 4.0X.4X 400 Unit:mm MXZRV E Indoor unit D Indoor unit C Indoor unit B Indoor unit A Unit D gas pipe temperature thermistor [9.5 Unit C gas pipe temperature thermistor [9.5 Unit B gas pipe temperature thermistor [ Unit A gas pipe temperature thermistor [ High pressure switch High pressure switch Oil separator Ball valve with service port Crankcase heater Suction temperature thermistor Compressor [6 Low pressure switch Discharge temperature thermistor Capillary tube [.5 [ Capillary tube [.0 [ Reversing valve [6 Refrigerant flow in cooling Refrigerant flow in heating [6 Accumulator Capillary tube [.0 [ wayvalve Evaporation temperature thermistor (RT67) Reversing valve coil heating ON cooling OFF Outdoor heat exchanger Indoor unit A Indoor unit B Indoor unit C Indoor unit D Strainer Strainer Strainer Strainer LEV LEV LEV LEV Strainer Strainer Strainer Strainer [6 [6 [6 [6 Ball valve with service port Distributor [9.5 Capillary tube [.5 [ Defrost thermistor Strainer Capillary tube [4.0 [ Distributor 4

44 MAX REFRIGERANT PIPING LENGTH MXZ8RV E a Piping length for each indoor unit (a,b) 0m Outodoor unit H Total piping length (a+b) Height difference between units (H) 0m 7m H Bending point for each unit 5 Total bending point 0 b H It does not matter which unit is higher MXZRV E Indoor units a b Outdoor unit H Piping length each indoor unit (a, b, c, d) 5m Total piping length (a+b+c+d) 60m Height difference between units (H) 0m Bending point for each unit 5 Total bending point 60 It does not matter which unit is higher. c d H H 44

45 PIPE SIZE SELECTION MXZ8RV E Refrigerant pipe diameter is different according to indoor unit to be connected. When using extension pipes, refer to the table below. When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Ljoint. For further information on Ljoint, see page BACK COVER. Unit : mm (inch) class 07/09 Indoor unit Pipe diameter Extention pipe diameter Liquid 6.5(/4) Liquid 6.5(/4) Gas 9.5(/8) Gas 9.5(/8) Liquid 6.5(/4) Liquid 6.5(/4) Gas.7(/) Gas.7(/) Outdoor unit union diameter For Liquid 6.5(/4) Indoor unit A Gas 9.5(/8) Liquid 6.5(/4) Indoor unit B Gas 9.5(/8) MXZRV E Refrigerant pipe diameter is different according to indoor unit to be connected. When using extention pipes,refer to the tables below. When diameter of refrigerant pipe is different from that of outdoor unit union, use optional Differentdiameter pipe. For further information on Differentdiameter pipe,see page BACK COVER. Unit : mm (inch) class 07/09 () 8 Indoor unit Extention pipe diameter Pipe diameter Liquid 6.5(/4) Liquid 6.5(/4) Gas 9.5(/8) Gas 9.5(/8) Liquid 6.5(/4) Liquid 6.5(/4) Gas.7(/) Gas.7(/) Liquid 6.5(/4) Liquid 6.5(/4) Gas 5.88(5/8) Gas 5.88(5/8) Outdoor unit union diameter For Indoor unit A Liquid 6.5(/4) Gas.7(/) Indoor unit B Liquid 6.5(/4) Gas.7(/) Indoor unit C Liquid 6.5(/4) Gas 9.5(/8) Indoor unit D Liquid 6.5(/4) Gas 9.5(/8) 45

46 0 PERFORMANCE CURVES MSC07RV E MSC09RV E MSCRV E MU07RV E MU09RV E MURV E The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions, since operating conditions vary according to the areas where these units are installed. The following information has been provided to clarify the operating characteristics of the air conditioner under the conditions indicated by the performance curve. () GUARANTEED VOLTAGE Rated voltage : ±0% (98 ~ 64V),50Hz () AIR FLOW Air flow should be set at MAX. () MAIN READINGS () Indoor intake air wetbulb temperature : CWB () Indoor outlet air wetbulb temperature : CWB () Outdoor intake air drybulb temperature : CDB (4) Total input: W (5) Indoor intake air drybulb temperature : CDB (6) Outdoor intake air wetbulb temperature : CWB (7) Total input : W Indoor air wet/drybulb temperature difference on the left side of the chart on page 4 and 5 shows the difference between the indoor intake air wet/drybulb temperature and the indoor outlet air wet/drybulb temperature for your reference at service. How to measure the indoor air wetbulb/drybulb temperature difference. Attach at least sets of wetand drybulb thermometers to the indoor air intake as shown in the figure, and at least sets of wetand drybulb thermometers to the indoor air outlet. The thermometers must be attached to the position where air speed is high.. Attach at least sets of wetand drybulb thermometers to the outdoor air intake. Cover the thermometers to prevent direct rays of the sun.. Check that the air filter is cleaned. 4. Open windows and doors of room. 5. Press the EMERGENCY OPERATION switch once(twice) to start the EMERGENCY COOL(HEAT<MUH07/09/RV>) MODE. 6. When system stabilizes after more than 5 minutes, measure temperature and take an average temperature minutes later, measure temperature again and check that the temperature does not change. INDOOR UNIT MUH07RV E MUH09RV E MUHRV E } } Cooling Heating <MUH07/09/RV> OUTDOOR UNIT Wetand drybulb thermometers 0.CAPACITY AND THE INPUT CURVES Wetand drybulb thermometers MSC07RV E (MU07RV E ) MSC09RV E (MU09RV E ) MSCRV E (MURV E ) 46

47 MSC07RV E (MUH07RV E ) MSC09RV E (MUH09RV E ) MSCRV E (MUHRV E ) MSC07RV E (MUH07RV E ) MSC09RV E (MUH09RV E ) MSCRV E (MUHRV E ) NOTE:The above curves are for the heating operation without any frost. 0.OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT COOL operation Both indoor and outdoor unit are under the same temperature/humidity condition. Drybulb temperature Relative humidity(%) ➁ Air flow should be set at MAX. The unit of pressure has been changed to MPa on the international system of units(si unit system). The conversion factor is : (MPa G) =0.(kgf/f G) (kgf/f G)(MPa G) MU07RV E.5 MU07RV E Outdoor low pressure V/40V Outdoor unit current (A) V 40V (%) Ambient temperature( C) Ambient humidity(%) 5(:) (%) Ambient temperature( C) Ambient humidity(%) 5(:)

48 (kgf/f G)(MPa G) Outdoor low pressure MU09RV E 0V/40V Outdoor unit current (A) MU09RV E 0V 40V (kgf/f G)(MPa G) (%) Ambient temperature( C) Ambient humidity(%) MURV E 5(:) Ambient temperature( C) Ambient humidity(%) MURV E 0 5(:) 70(%) Outdoor low pressure V/40V Outdoor unit current (A) V 0V (%) Ambient temperature( C) Ambient humidity(%) 5(:) (%) Ambient temperature( C) Ambient humidity(%) 5(:) (kgf/f G)(MPa G) MUH07RV E.5 MUH07RV E Outdoor low pressure V/40V Outdoor unit current (A) V 40V (%) Ambient temperature( C) Ambient humidity(%) (kgf/f G)(MPa G) MUH09RV E 5(:) (%) Ambient temperature( C) Ambient humidity(%) 4.5 MUH09RV E 5(:) Outdoor low pressure V/40V Outdoor unit current (A) V 40V (%) Ambient temperature( C) Ambient humidity(%) 5(:) (%) Ambient temperature( C) Ambient humidity(%) 5(:)

49 (kgf/f G)(MPa G) MUHRV E 6.0 MUHRV E Outdoor low pressure V/40V Outdoor unit current (A) V/40V (%) 5(:) (%) 5 (:) Ambient temperature( C) Ambient humidity(%) Ambient temperature( C) Ambient humidity(%) HEAT operation Condition indoor:dry bulb temperature 0.0 C Wet bulb temperature 4.5 C Outdoor:Dry bulb temperature 7,5,0 C Wet bulb temperature 6,,4.5 C 4.0 MUH07RV E 5.0 MUH09RV E Outdoor unit current (A) Outdoor unit current (A) (;) V 40V Ambient temperature( C) MUHRV E 40V 0V Outdoor unit current (A) 4.5 0V V (;) Ambient temperature( C) (;) Ambient temperature( C) 49

50 MSC07RV E MUX0RV E MSC09RV E MUX8RV E MSCRV E MUX4RV E 0.CAPACITY AND THE INPUT CURVES (ONE INDOOR UNIT WITH ONE OUTDOOR UNIT) Indoor air WB temperature difference (deg.) MUX0RV E (MSC07RV E ) MUX8RV E (MSC09RV E ) MUX4RV E (MSC09RV E ) MUX4RV E (MSCRV E ) 0.OUTDOOR LOW PRESSURE AND OUTDOOR UNIT CURRENT COOL operation Both indoor and outdoor unit are under same temperature/humidity condition. Drybulb temperature Relative humidity (%) ➁ Air flow should be set at MAX MUX0RV E (kgf/f G)(MPa G) Outdoor low pressure (kgf/f G) Single operation (Unit A or B) 4 Outdoor unit current (A) 40V 0V (kgf/f G)(MPa G) Outdoor low pressure (kgf/f G) Multiple operation (Unit A+B) 4 Outdoor unit current (A) 40V 0V MUX8RV E (kgf/f G)(MPa G) Outdoor low pressure (kgf/f G) Single operation (Unit A or B) 5 Outdoor unit current (A) 4 40V 0V (kgf/f G)(MPa G) Outdoor low pressure (kgf/f G) Unit A+B Multiple operation Unit A+C 9 Outdoor unit current (A) V 0V

51 MUX4RV E (kgf/f G)(MPa G) Outdoor low pressure (kgf/f G) Single operation (Unit A or B) 8 Outdoor unit current (A) 7 40V 6 0V 5 4 (kgf/f G)(MPa G) Outdoor low pressure (kgf/f G) Single operation (Unit C or D) Outdoor unit current (A) 6 5 0V/40V 4 (kgf/f G)(MPa G) Outdoor low pressure (kgf/f G) Multiple operation (Unit A+B) 8 Outdoor unit current (A) V 5 4 0V (kgf/f G)(MPa G) Outdoor low pressure (kgf/f G) Multiple operation (Unit C+D) 8 7 Outdoor unit current (A) V/40V 5

52 MSC07RV E MXZ8RV E MSC09RV E MXZRV E MSCRV E 0.Capacity and input correction by inverter output frequency (OUTDOOR UNIT:MXZ8RV) NOTE : Inverter output frequency : COOL 58Hz,HEAT 58Hz NOTE : The dotted line on graphs connects the frequency range in normal operation shown by the full line and the frequency in test run shown by the point..07class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Hz Frequency Hz Frequency Hz Frequency Hz Frequency.09class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Hz Frequency Hz Frequency Hz Frequency Hz Frequency.class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Hz Frequency Hz Frequency Hz Frequency Hz Frequency 5

53 0..Capacity and input correction by inverter output frequency (OUTDOOR UNIT:MXZRV) NOTE : Inverter output frequency : COOL 58Hz,HEAT 40Hz NOTE : The dotted line on graphs connects the frequency range in normal operation shown by the full line and the frequency in test run shown by the point..07class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Hz Frequency Hz Frequency Hz Frequency Hz Frequency.09class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Hz Frequency Hz Frequency Hz Frequency Hz Frequency.class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Hz Frequency Hz Frequency Hz Frequency Hz Frequency 4.8class unit in single operation <COOL>Capacity <COOL>Total input <HEAT>Capacity <HEAT>Total input Hz Frequency Hz Frequency Hz Frequency Hz Frequency 5

54 0.Outdoor low pressure and outdoor unit current.07class unit in single operation(outdoor UNIT : MXZ8RV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The converted score against the traditional unit system can be gotten according to the formula below. (MPa G) =0.(kgf/f G) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Drybulb temperature( C) Relative humidity(%) Air flow speed : HI Inverter output frequency : 58Hz <How to work fixedfrequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency run ON/OFF button..compressor starts running at 58Hz (COOL / HEAT). 4.Indoor fan runs at HI speed and continues for 0 minutes. 5.To cancel this operation,press emergency run ON/OFF button or any button on remote controller. (kgf/f G)(MPa G) Outdoor low pressure ( o C) (%) Ambient temperature( o C) () HEAT operation / Ambient humidity(%) Indoor DB( C) 0.0 Outdoor DB( C) WB( C) 4.5 WB( C) ➁ Set air flow to Hi speed. ➂ Inverter output frequency is 58Hz. (kgf/f G)(MPa G) Outdoor low pressure Hz 58Hz Outdoor unit current (A) Outdoor unit current (A) Hz 0V 58Hz 40V ( o C) (%) Ambient temperature( o C) / Ambient humidity(%) 58Hz 0V 58Hz 40V Ambient temperature( o C) Ambient temperature( o C) 54

55 .09class unit in single operation (OUTDOOR UNIT : MXZ8RV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The converted score against the traditional unit system can be gotten according to the formula below. (MPa G) =0.(kgf/f G) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Drybulb temperature( C) Relative humidity(%) Air flow speed : HI Inverter output frequency : 58Hz (kgf/f G)(MPa G) Outdoor low pressure ( o C) (%) Ambient temperature( o C) () HEAT operation / Ambient humidity(%) Indoor DB( C) 0.0 Outdoor DB( C) WB( C) 4.5 WB( C) ➁ Set air flow to Hi speed. ➂ Inverter output frequency is 58Hz. (kgf/f G)(MPa G) Outdoor low pressure Hz <How to work fixedfrequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency run ON/OFF button..compressor starts running at 58Hz (COOL / HEAT). 4.Indoor fan runs at HI speed and continues for 0 minutes. 5.To cancel this operation,press emergency run ON/OFF button or any button on remote controller. 58Hz Outdoor unit current (A) Outdoor unit current (A) Hz 0V 58Hz 40V ( o C) (%) Ambient temperature( o C) / Ambient humidity(%) 58Hz0V 58Hz 40V Ambient temperature( o C) Ambient temperature( o C) 55

56 . class unit in single operation (OUTDOOR UNIT : MXZ8RV) NOTE:The unit of pressure has been changed to MPa on the international system of units(si unit system). The converted score against the traditional unit system can be gotten according to the formula below. (MPa G) =0.(kgf/f G) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Drybulb temperature( C) Relative humidity(%) Air flow speed : HI Inverter output frequency : 58Hz (kgf/f G)(MPa G) <How to work fixedfrequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency run ON/OFF button..compressor starts running at 58Hz (COOL/HEAT). 4.Indoor fan runs at HI speed and continues for 0 minutes. 5.To cancel this operation,press emergency run ON/OFF button or any button on remote controller. 8 Outdoor low pressure Hz ( o C) (%) Ambient temperature( o C) () HEAT operation / Ambient humidity(%) Indoor DB( C) 0.0 Outdoor DB( C) WB( C) 4.5 WB( C) ➁ Set air flow to Hi speed. ➂ Inverter output frequency is 58Hz. (kgf/f G)(MPa G) Outdoor low pressure Hz Outdoor unit current (A) Outdoor unit current (A) Hz 40V ( o C) (%) Ambient temperature( o C) / Ambient humidity(%) 58Hz 0V 58Hz 40V Ambient temperature( o C) Ambient temperature( o C) 56

57 04.Outdoor low pressure and outdoor unit current. 07class unit in single operation (OUTDOOR UNIT : MXZRV) NOTO:The unit of pressure has been changed to MPa on the international system of units(si unit system). The converted score against the traditional unit system can be gotten according to the formula below. (MPa G) =0.(kgf/f G) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Drybulb temperature( C) Relative humidity(%) Air flow speed : HI Inverter output frequency : 58Hz <How to work fixedfrequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency run ON/OFF button..compressor starts running at 58Hz (COOL) or 40Hz (HEAT). 4.Indoor fan runs at HI speed and continues for 0 minutes. 5.To cancel this operation,press emergency run ON/OFF button or any button on remote controller. (kgf/f G)(MPa G) Outdoor low pressure ( o C) (%) Ambient temperature( o C) () HEAT operation / Ambient humidity(%) Indoor DB( C) 0.0 Outdoor DB( C) WB( C) 4.5 WB( C) ➁ Set air flow to Hi speed. ➂ Inverter output frequency is 40Hz. 58Hz Outdoor unit current (A) Outdoor unit current (A) Hz ( o C) (%) Ambient temperature( o C) / Ambient humidity(%) 40Hz Ambient temperature( o C) 57

58 . 09class unit in single operation (OUTDOOR UNIT : MXZRV) NOTO:The unit of pressure has been changed to MPa on the international system of units(si unit system). The converted score against the traditional unit system can be gotten according to the formula below. (MPa G) =0.(kgf/f G) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Drybulb temperature( C) Relative humidity(%) Air flow speed : HI Inverter output frequency : 58Hz (kgf/f G)(MPa G) <How to work fixedfrequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency run ON/OFF button..compressor starts running at 58Hz (COOL) or 40Hz (HEAT). 4.Indoor fan runs at HI speed and continues for 0 minutes. 5.To cancel this operation,press emergency run ON/OFF button or any button on remote controller. Outdoor low pressure ( o C) (%) Ambient temperature( o C) / Ambient humidity(%) () HEAT operation Indoor DB( C) 0.0 WB( C) 4.5 Outdoor ➁ Set air flow to Hi speed. ➂ Inverter output frequency is 40Hz. 58Hz Outdoor unit current (A) Outdoor unit current (A) 0 DB( C) WB( C) Hz ( o C) (%) Ambient temperature( o C) / Ambient humidity(%) 40Hz Ambient temperature( o C) 58

59 . ()class unit in single operation (OUTDOOR UNIT : MXZRV) NOTO:The unit of pressure has been changed to MPa on the international system of units(si unit system). The converted score against the traditional unit system can be gotten according to the formula below. (MPa G) =0.(kgf/f G) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Drybulb temperature( C) Relative humidity(%) Air flow speed : HI Inverter output frequency : 58Hz (kgf/f G)(MPa G) <How to work fixedfrequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency run ON/OFF button..compressor starts running at 58Hz (COOL) or 40Hz (HEAT). 4.Indoor fan runs at HI speed and continues for 0 minutes. 5.To cancel this operation,press emergency run ON/OFF button or any button on remote controller. Outdoor low pressure ( o C) (%) Ambient temperature( o C) / Ambient humidily(%) () HEAT operation Indoor DB( C) 0.0 Outdoor DB( C) WB( C) 4.5 WB( C) ➁ Set air flow to Hi speed. ➂ Inverter output frequency is 40Hz. 58Hz Outdoor unit current (A) Outdoor unit current (A) Hz ( o C) (%) Ambient temperature( o C) / Ambient humidily(%) 40Hz Ambient temperature( o C)

60 4. 8class unit in single operation NOTO:The unit of pressure has been changed to MPa on the international system of units(si unit system). The converted score against the traditional unit system can be gotten according to the formula below. (MPa G) =0.(kgf/f G) () COOL operation Both indoor and outdoor units are under the same temperature/humidity condition. Drybulb temperature( C) Relative humidity(%) ➁ Air flow speed : HI ➂ Inverter output frequency : 58Hz <How to work fixedfrequency operation>.set emergency switch to COOL or HEAT.The switch is located on indoor unit..press emergency run ON/OFF button..compressor starts running at 58Hz (COOL) or 40Hz (HEAT). 4.Indoor fan runs at HI speed. 5.To cancel this operation,press emergency run ON/OFF button or any button on remote controller. (kgf/f G)(MPa G) Outdoor low pressure ( o C) ( o C) (%) (%) Ambient temperature( o C) Ambient temperature( o C) / Ambient humidily(%) () HEAT operation / Ambient humidily(%) Indoor DB( C) 0.0 Outdoor DB( C) WB( C) 4.5 WB( C) ➁ Set air flow to Hi speed. ➂ Inverter output frequency is 58Hz. 58Hz Outdoor unit current (A) Outdoor unit current (A) Hz 40Hz Ambient temperature( o C) 60

61 PERFORMANCE DATA COOL operation (0V) MSC07RV E : MU07RV E CAPACITY :. kw INPUT : 680 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 6

62 PERFORMANCE DATA COOL operation (0V) MSC07RV E : MU07RV E CAPACITY :. kw INPUT : 680 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 6

63 PERFORMANCE DATA COOL operation (40V) MSC07RV E : MU07RV E CAPACITY :. kw INPUT : 70 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 6

64 PERFORMANCE DATA COOL operation (40V) MSC07RV E : MU07RV E CAPACITY :. kw INPUT : 70 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 64

65 PERFORMANCE DATA COOL operation (0V) MSC09RV E : MU09RV E CAPACITY :.5 kw INPUT : 780 W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 65

66 PERFORMANCE DATA COOL operation (0V) MSC09RV E : MU09RV E CAPACITY :.5 kw INPUT : 780 W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 66

67 PERFORMANCE DATA COOL operation (40V) MSC09RV E : MU09RV E CAPACITY :.5 kw INPUT : 80 W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 67

68 PERFORMANCE DATA COOL operation (40V) MSC09RV E : MU09RV E CAPACITY :.5 kw INPUT : 80 W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 68

69 PERFORMANCE DATA COOL operation (0V) MSCRV E : MURV E CAPACITY :.5 kw INPUT : 0 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 69

70 PERFORMANCE DATA COOL operation (0V) MSCRV E : MURV E CAPACITY :.5 kw INPUT : 0 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 70

71 PERFORMANCE DATA COOL operation (40V) MSCRV E : MURV E CAPACITY :.5 kw INPUT : W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 7

72 PERFORMANCE DATA COOL operation (40V) MSCRV E : MURV E CAPACITY :.5 kw INPUT : W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 7

73 PERFORMANCE DATA COOL operation (0V) MSC07RV E : MUH07RV E CAPACITY :. kw INPUT : 70 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 7

74 PERFORMANCE DATA COOL operation (0V) MSC07RV E : MUH07RV E CAPACITY :. kw INPUT : 70 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 74

75 PERFORMANCE DATA COOL operation (40V) MSC07RV E : MUH07RV E CAPACITY :. kw INPUT : 750 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 75

76 PERFORMANCE DATA COOL operation (40V) MSC07RV E : MUH07RV E CAPACITY :. kw INPUT : 750 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 76

77 PERFORMANCE DATA COOL operation (0V) MSC09RV E : MUH09RV E CAPACITY :.5 kw INPUT : 880 W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 77

78 PERFORMANCE DATA COOL operation (0V) MSC09RV E : MUH09RV E CAPACITY :.5 kw INPUT : 880 W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 78

79 PERFORMANCE DATA COOL operation (40V) MSC09RV E : MUH09RV E CAPACITY :.5 kw INPUT : W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 79

80 PERFORMANCE DATA COOL operation (40V) MSC09RV E : MUH09RV E CAPACITY :.5 kw INPUT : W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 80

81 PERFORMANCE DATA COOL operation (0V) MSCRV E : MUHRV E CAPACITY :.4 kw INPUT : 0 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 8

82 PERFORMANCE DATA COOL operation (0V) MSCRV E : MUHRV E CAPACITY :.4 kw INPUT : 0 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 8

83 PERFORMANCE DATA COOL operation (40V) MSCRV E : MUHRV E CAPACITY :.4 kw INPUT : 00 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 8

84 PERFORMANCE DATA COOL operation (40V) MSCRV E : MUHRV E CAPACITY :.4 kw INPUT : 00 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 84

85 PERFORMANCE DATA HEAT operation (0V) MSC07RV E : MUH07RV E CAPACITY :.5 kw INPUT : 680 W OUTDOOR DB(;) INDOOR DB(;) Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT MSC09RV E : MUH09RV E CAPACITY :. kw INPUT : W OUTDOOR DB(;) INDOOR DB(;) Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT MSCRV E : MUHRV E CAPACITY : 4.0 kw INPUT : 60 W OUTDOOR DB(;) INDOOR DB(;) Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT HEAT operation (40V) MSC07RV E : MUH07RV E CAPACITY :.5 kw INPUT : 70 W OUTDOOR DB(;) INDOOR DB(;) Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT MSC09RV E : MUH09RV E CAPACITY :. kw INPUT : 940 W OUTDOOR DB(;) INDOOR DB(;) Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT MSCRV E : MUHRV E CAPACITY : 4.0 kw INPUT : 50 W OUTDOOR DB(;) INDOOR DB(;) Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT NOTE Q :Total capacity (kw) INPUT :Total power input (W) 85

86 PERFORMANCE DATA COOL operation (0V) MSC07RV (Single) : MUX0RV E CAPACITY :. kw INPUT(Total=Indoor+Outdoor) : 740 W SHF : 0.74 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 86

87 PERFORMANCE DATA COOL operation (0V) MSC07RV (Single) : MUX0RV E CAPACITY :. kw INPUT(Total=Indoor+Outdoor) : 740 W SHF : 0.74 OUTDOOR DB(;) INDOO INDOO DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 87

88 PERFORMANCE DATA COOL operation (40V) MSC07RV (Single) : MUX0RV E CAPACITY :. kw INPUT(Total=Indoor+Outdoor) : 7 W SHF : 0.74 OUTDOOR DB(;) INDOO INDOO DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 88

89 PERFORMANCE DATA COOL operation (40V) MSC07RV E (Single) :MUX0RV E CAPACITY :. kw INPUT(Total=Indoor+Outdoor) : 7 W SHF : 0.74 OUTDOOR DB(;) INDOO INDOO DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 89

90 PERFORMANCE DATA COOL operation (0V) MSC09RV (Single) : MUX8RV E CAPACITY :. kw INPUT(Total=Indoor+Outdoor) : 7 W SHF : 0.7 OUTDOOR DB(;) INDOO INDOO DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W)

91 PERFORMANCE DATA COOL operation (0V) MSC09RV (Single) : MUX8RV E CAPACITY :. kw INPUT(Total=Indoor+Outdoor) : 7 W SHF : 0.7 OUTDOOR DB(;) INDOO INDOO DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 9

92 PERFORMANCE DATA COOL operation (40V) MSC09RV (Single) : MUX8RV E CAPACITY :. kw INPUT(Total=Indoor+Outdoor) : 80 W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 9

93 PERFORMANCE DATA COOL operation (40V) MSC09RV (Single) : MUX8RV E CAPACITY :. kw INPUT(Total=Indoor+Outdoor) : 80 W SHF : 0.7 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 9

94 PERFORMANCE DATA COOL operation (0V) MSC09RV (Single) : MUX4RV E CAPACITY :.6 kw INPUT(Total=Indoor+Outdoor) : 975 W SHF : 0.69 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 94

95 PERFORMANCE DATA COOL operation (0V) MSC09RV (Single) : MUX4RV E CAPACITY :.6 kw INPUT(Total=Indoor+Outdoor) : 975 W SHF : 0.69 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 95

96 PERFORMANCE DATA COOL operation (40V) MSC09RV (Single) : MUX4RV E CAPACITY :.6 kw INPUT(Total=Indoor+Outdoor) : 05 W SHF : 0.69 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 96

97 PERFORMANCE DATA COOL operation (40V) MSC09RV (Single) : MUX4RV E CAPACITY :.6 kw INPUT(Total=Indoor+Outdoor) : 05 W SHF : 0.69 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 97

98 PERFORMANCE DATA COOL operation (0V) MSCRV (Single) : MUX4RV E CAPACITY :.4 kw INPUT(Total=Indoor+Outdoor) : 55 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 98

99 PERFORMANCE DATA COOL operation (0V) MSCRV (Single) : MUX4RV E CAPACITY :.4 kw INPUT(Total=Indoor+Outdoor) : 55 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 99

100 PERFORMANCE DATA COOL operation (40V) MSCRV (Single) : MUX4RV E CAPACITY :.4 kw INPUT(Total=Indoor+Outdoor) : 45 W SHF : 0.67 OUTDOOR DB(;) INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 00

101 PERFORMANCE DATA COOL operation (40V) MSCRV (Single) : MUX4RV E CAPACITY :.4 kw INPUT(Total=Indoor+Outdoor) : 45 W SHF : 0.67 OUT INDOOR INDOOR DB(;) WB(;) Q SHC SHF INPUT Q SHC SHF INPUT Q SHC SHF INPUT NOTE Q :Total capacity (kw) SHF :Sensible heat factor SHC :Sensible heat capacity (kw) INPUT :Total power input (W) 0

102 MICROPROCESSOR CONTROL MSC07RV E MSC09RV E MSCRV E MU07RV E MU09RV E MURV E MUH07RV E MUH09RV E MUHRV E MUX0RV E W MXZ8RV E MUX8RV E W MXZRV E MUX4RV E W Refer to page ~9 for the inverter multi system control of of this outdoor unit. Once the operation mode are set, the same operation mode can be repeated by simply turning the OPERATE/STOP button ON. Indoor unit receives the signal with a beep tone. When the system turns off, minute time delay will operate to protect system from overload and compressor will not restart for minutes. WIRELESS REMOTE CONTROLLER MU07RV MUX0RV E MUH07RV E MXZ8RV MU09RV E MUX8RV E MUH09RV E MXZRV MURV MUX4RV E MUHRV E E E Signal transmitting section Signal transmitting section Operation display section Operation display section OPERATE /STOP (ON /OFF)button AM ON/OFF CLOCK TOO WARM PM TOO COOL OPERATE /STOP (ON /OFF)button AM ON/OFF CLOCK TOO WARM PM TOO COOL OPERATION SELECT button MODE I FEELCOOLDRYFAN TEMPERATURE buttons OPERATION SELECT button MODE I FEELCOOLDRYHEAT TEMPERATURE buttons FAN SPEED CONTROL button ECONO COOL button ONTIMER button CLOCK SET button HR. button MIN. button (TIME SET button) FAN ECONO COOL START VANE STOP HR. MIN. CLOCK RESET VANE CONTROL button OFFTIMER button RESET button FAN SPEED CONTROL button ECONO COOL button ONTIMER button CLOCK SET button HR. button MIN. button (TIME SET button) FAN ECONO COOL START VANE STOP HR. MIN. CLOCK RESET VANE CONTROL button OFFTIMER button RESET button INDOOR UNIT DISPLAY SECTION Operation indicator lamp The operation indicator at the right side of the indoor unit indicates the operation state. Operation Indicator lighting not lighting Indication Operation state This shows that the air conditioner is operating to reach the target temperature. Please wait unitil the target temperature is obtained. This shows that the room temperature is approaching the target temperature. Difference betweeen set temperature and room temperature Approx. : or more Approx. : or less 0

103 . COOL ( ) OPERATION () Press OPERATE/STOP(ON/OFF) button.operation indicator lamp of the indoor unit turns on with a beep tone. () Select COOL mode with the OPERATION SELECT button. () Press TEMPERATURE buttons (TOO WARM or TOO COOL button)to select the desired temperature. The setting range is 6 ~ C. Indoor fan speed control Indoor fan operates continuously at the set speed by FAN SPEED CONTROL button regardless of thermostat s OFFON. In Auto the fan speed is as follows. Initial temperature difference Fan speed Room temperature minus set temperature : degrees or more Hi Room temperature minus set temperature : Between and degrees Me Room temperature minus set temperature : less than degree Lo Difference between room temperature and set temperature during operation deg. 4 deg. deg..7 deg.. Coil frost prevention Temperature control When the indoor coil thermistor RT reads 4 C or below(msc07/09rv) / 0 C or below(mscrv) for 5 minutes, the coil frost prevention mode starts. The indoor fan operates at the set speed and the compressor stops for 5 minutes. After that, if RT still reads below 4 C (MSC07/09RV) / 0 C (MSCRV), this mode is prolonged until the RT reads over 4 C (MSC07/09RV) / 0 C (MSCRV). Time control When the three conditions as follows have been satisfied for hour and 45 minutes, the compressor stops for minutes. The indoor fan operates at the set speed. a. Compressor has been continuously operating. b. Indoor fan speed is Lo or Me. c. Room temperature is below 6 C. When compressor stops, the accumulated time is cancelled. When compressor restarts, time counting starts from the beginning. Time counting also stops temporarily when the indoor fan speed becomes Hi or the room temperature exceeds 6 C. However, when two of the above conditions (b.and c.) are satisfied again, time accumulation is resumed. Operation chart Example ON ON Compressor Outdoor fan OFF OFF Indoor fan ON ( continuously at set speed). DRY ( ) OPERATION () Press OPERATE/STOP(ON/OFF) button. Operation indicator lamp of the indoor unit turns on with a beep tone. () Select DRY mode with the OPERATION SELECT button. () The microprocessor reads the room temperature and determines the set temperature. Set temperature is as shown on the right chart. DRY operation will not function when the room temperature is C or below. (4) When DRY operation functions the fan speed is lower than cool operation expect at (fan speed) Lo notch. Set temperature : Set temperature and initial room temperature in dry mode : Initial room temperature

104 The system for dry operation uses the same refrigerant circuit as the cooling circuit. The compressor and the indoor fan are controlled by the room temperature.. Indoor fan speed control Indoor fan operates at the set speed by FAN SPEED CONTROL button. In Auto fan speed becomes Lo.. The operation of the compressor and indoor / outdoor fan <MU07/09/RV,MUH07/09/RV,MUX0/8/4RV> (Refer to page 4 for MXZ8/RV) Compressor operates by room temperature control and time control. Indoor fan and outdoor fan operate in the same cycle as the compressor. When the room temperature is C or over: When the thermostat is ON, the compressor repeats 8 minutes ON and minutes OFF. When the thermostat is OFF, the compressor repeats 4 minutes OFF and minute ON. When the room temperature is under C. When the thermostat is ON, the compressor repeats minutes ON and minutes OFF. When the thermostat is OFF, the compressor repeats 4 minutes OFF and minute ON. Operation time chart Example Thermostat OFF ON OFF ON ON ON ON Indoor fan OFF OFF OFF ON ON ON Outdoor fan Compressor OFF OFF OFF 8 min. min. 4 min. min.. Coil frost prevention The operation is as same as coil frost prevention during COOL operation.(refer to..) However when coil frost prevention works while the indoor fan is OFF, it s speed becomes set speed... FAN ( ) OPERATION <MU07/09/RV,MUX0/8/4RV> () Press OPERATE/STOP(ON/OFF) button.operation indicator lamp of the indoor unit turns on with a beep tone. () Select FAN mode with the OPERATION SELECT button. () Select the desired fan speed.when AUTO,it becomes Lo. Only indoor fan operates. Outdoor unit does not operate. 4. HEAT ( ) OPERATION <MUH07/09/RV,MXZ8/RV> () Press OPERATE/STOP(ON/OFF) button. Operation indicator lamp of the indoor unit turns on with a beep tone. () Select HEAT mode with the OPERATION SELECT button. () Press TEMPERATURE buttons (TOO WARM or TOO COOL button) to select the desired temperature. The setting range is 6 ~ C.. Indoor fan speed control () Indoor fan operates at the set speed by FAN SPEED CONTROL button. In Auto the fan speed is as follows. Fan speed Initial temperature difference Set temperature minus room temperature: degrees or more Hi Set temperature minus room temperature: Between and degrees Me Set temperature minus room temperature: less than degree Lo Difference between room temperature and set temperature during operation deg..7 deg. deg. 4 deg. 04

105 () Cold air prevention control When the compressor is not operating, () if the temperature of indoor coil thermistor RT is 8 C or less, the fan stops. () if the temperature of indoor coil thermistor RT is more than 8 C, the fan operates at VLo. When the compressor is operating, () if the temperature of RT is C or more, the fan operates at set speed. () if the temperature of RT is less than C and () if the temperature of room temperature thermistor RT is 5 C or less, the fan stops. () if the temperature of room temperature thermistor RT is more than 5 C, the fan operates at VLo. Released Cold Air Prevention NOTE : If the temperature of RT reads from 8 C to C at the air conditioner stating and also after defrosting, this control works. () Warm air control. When the following any condition of (a. ~ d.) and the condition of are satisfied at the same time, warm air control works. a.) when the operation mode has been changed to HEAT mode b.) when cold air prevention has been released c.) when defrosting has been finished d.) when the compressor starts in HEAT mode When the temperature of indoor coil thermistor RT is less than 7 C. When warm air control works, the fan speed changes as follows to blow out warm air gradually. Gradation of fan speed in initial The upper limit of the fan speed in MANUAL is the set speed. The upper limit of the fan speed in AUTO is the speed decided by indoor fan speed control.(refer to 4..().) When the temperature of RT has been 7 C or more, or when the set speed has been changed, this control is released and the fan speed is the set speed. (4) Flow soft control When the thermostat (compressor) is off, the indoor fan operates as follows. RT fan less than 8 C off 8 C or more VLo 5 C 8: : Fan speed Set speed VLo or stop <Time condition> <Indoor fan speed> less than minutes Lo minutes to 4 minutes Me more than 4 minutes Hi NOTE : When the thermostat(compressor) turns on, the fan will operate at set speed. But until cold air prevention and warm air control is released, the fan speed follow them.. High pressure protection <MUH07/09/RV> (Refer to page 8 for MXZ8/RV) During heating operation, the outdoor fan motor is controlled by the temperature of indoor coil thermistor RT for excess rise protection of compressor discharge pressure. Outdoor fan OFF: 5: Outdoor fan Outdoor fan ON: 48: Operation chart Example Indoor coil thermistor RT temperature High pressure protection Released 48: 5: OFF ON Outdoor fan motor turn OFF 48 C Outdoor fan motor turn ON Outdoor fan motor ON OFF ON OFF NOTE : During high pressure protection and for 4 min. and 5 sec. after high pressure protection, defrosting of outdoor heat exchanger is not detected by the defrost thermistor RT6.(Refer to 4.. Defrosting.) 05

106 . Defrosting <MUH07/09/RV> (Refer to page 8 for MXZ8/RV) Defrosting of outdoor heat exchanger is controlled by DEICER P.C. board, with detection by the defrost thermistor RT6. () Starting conditions of defrost When all conditions of a) ~ c) are satisfied, the defrosting operation starts. a) The compressor cumulative operation time exceeds 40 minutes without the defrosting operation working. b) RT6 reads C or less. c) After releasing the high pressure protection 4 minutes and 5 seconds have elapsed. () Releasing conditions of defrost When the condition d) or e) is satisfied, the defrosting operation stops. d) RT6 reads. C or more. e) The defrosting time exceeds 0 minutes. Operation time chart Example Defrost thermistor RT6.: or more : or less Outdoor 5C contactor (Compressor) ON OFF X6 (Reversing valve coil) ON OFF 0 sec. 5 sec. 0 sec. 5 sec. SR6 Outdoor fan ON OFF Defrost counter ON OFF Max 0 min. Indoor fan ON VLo OFF NOTE Indoor Horizontal vane Horizontal Set position NOTE When the indoor coil thermistor RT reads above 8 C, indoor fan operates at VLo for 0 seconds. When the indoor coil thermistor RT reads 8 C or less, the indoor fan stops. 06

107 4. Reversing valve control <MUH07/09/RV> Heating ON Cooling OFF Dry OFF When operation starts, the reversing valve reverses for 5 seconds right before startup of the compressor. Operation time chart (COOL / DRY) (HEAT) 5 sec. 5 sec. Compressor Reversing valve Outdoor fan ON OFF ON OFF ON OFF ON OFF ON OFF ON OFF 5. I FEEL CONTROL ( ) OPERATION () Press OPERATE/STOP(ON/OFF) butt. Operation indicator lamp of the indoor unit turns on with a beep tone. () Select I FEEL CONTROL ( ) mode with the OPERA TION SELECT button. () The operation mode is determined by the initial room temperature at startup of the operation, as shown on the right table. Initial room temperature MU&MUX type MUH&MXZ type 5: or more 5: or more more than:, less than 5: :or more, less than 5: less than : Mode COOL mode of "I FEEL CONTROL" DRY mode of "I FEEL CONTROL" HEAT mode of "I FEEL CONTROL" Once the mode is fixed, the mode does not change by room temperature afterwards. Under the ONTIMER ( ) operation, mode is determined according to the room temperature at set time the operation starts. When the system is stopped on the remote controller and restarted within hours in I FEEL CONTROL ( ) mode, the system operates in previous mode automatically regardless of the room temperature. Operation time chart Example Previous operation COOL mode of I FEEL CONTROL or COOL mode Restart COOL mode of I FEEL CONTROL When the system is restarted after hours and more, the operation mode is determined by the room temperature at startup of the operation. Operation time chart Example Previous operation COOL mode of I FEEL CONTROL or COOL mode Restart COOL or DRY or HEAT mode of I FEEL CONTROL that determined by room temperature at startup of the operation. 07

108 (4) The initial set temperature is decided by the initial room temperature. Mode MU & MUX type Initial room temperature MUH & MXZ type Initial set temperature COOL mode of "I FEEL CONTROL" 6: or more 5: or more, less than 6: 6: or more 5: or more, less than 6: 4: Initial room temperature minus : Initial room temperature minus : DRY mode of "I FEEL CONTROL" HEAT mode of "I FEEL CONTROL" more than :, less than 5: : or more, less than5: less than : 6: When the system is restarted with the remote controller, the system operates with the previous set temperature regardless of the room temperature at restart. (5) TEMPERATURES buttons In I FEEL CONTROL ( ) mode, set temperature is decided by the microprocessor based on the room temperature. In addition, set temperature can be controlled by TOO WARM or TOO COOL buttons when you feel too cool or too warm.each time the TOO WARM or TOO COOL button is pressed, the indoor unit receives the signal and emits a beep tone. Fuzzy control When the TOO COOL or TOO WARM button is pressed, the microprocessor changes the set temperature, considering the room temperature, the frequency of pressing TOO COOL or TOO WARM button and the user s preference to heat or cool. So this is called Fuzzy control, and works only in I FEEL CONTROL mode. In DRY mode of I FEEL CONTROL, the set temperature doesn t change. TOO COOL To raise the set temperature ~ degrees( C) TOO WARM To lower the set temperature ~ degrees( C) COOL mode of I FEEL CONTROL. Indoor fan speed control Indoor fan speed control is as same as COOL OPERATION.(..). Coil frost prevention Coil frost prevention is as same as COOL OPERATION.(..) DRY mode of I FEEL CONTROL. Indoor fan speed control Indoor fan speed control is as same as DRY OPERATION.(..). The operation of the compressor and indoor / outdoor fan The operation of the compressor and indoor / outdoor fan is as same as DRY OPERATION.(8..). Coil frost prevention Coil frost prevention is as same as DRY OPERATION.(..) HEAT mode of I FEEL CONTROL <MUH07/09/RV,MXZ8/RV>. Indoor fan speed control Indoor fan speed control is as same as HEAT OPERATION.(4..). High pressure protection W High pressure protection is as same as HEAT OPERATION.(4..). Defrosting W Defrosting is as same as HEAT OPERATION.(4..) 4. Reversing valve control W Reversing valve control is as same as HEAT OPERATION.(4.4.) W Only MUH07/09/RV 08

109 6. FAN MOTOR CONTROL () Rotational frequency feedback control The indoor fan motor is equipped with a rotational frequency sensor, and outputs signal to the microprocessor to feedback the rotational frequency. Comparing the current rotational frequency with the target rotational frequency (Hi,Me,Lo), the microprocessor controls SR4and adjusts fan motor electric current to make the current rotational frequency close to the target rotational frequency. With this control, when the fan speed is switched, the rotational frequency changes smoothly. () Fan motor lockup protection When the rotational frequency feedback signal is not output for seconds, (or when the microprocessor cannot detect the signal for seconds) the fan motor is regarded lockedup. Then the electric current to the fan motor is shut off. minutes later, the electric current is applied to the fan motor again. During the fan motor lockup, the Operation Indicator lamp flashes on and off to show the fan motor abnormality. (See page.) 7. AUTO VANE OPERATION () Vane motor drive These models are equipped with a stepping motor for the horizontal vane. The rotating direction, speed, and angle of the motor are controlled by pulse signals (approx. V) transmitted from indoor microprocessor. () The horizontal vane angle and mode changes as follows by pressing the VANE CONTROL ( ) button. () Positioning The vane is once pressed to the vane stopper below to confirm the standard position and then set to the desired angle. Confirming of standard position is performed in case of follows. (a) When the OPERATE / STOP(ON / OFF) button is pressed. (b) When the vane control is changed from AUTO to MANUAL. (c) When the SWING is finished. (d) When the test run starts. (e) When the power supply turns ON. (4) VANE AUTO ( ) mode In VANE AUTO mode, the microprocessor automatically determines the vane angle to make the optimum roomtemperature distribution. In COOL and DRY operation Vane angle is fixed to Angle. In FAN operation <MU07/09/RV> In HEAT operation <MUH07/09/RV> Vane angle is fixed to Angle 4. (5) Dew prevention During COOL or DRY operation at Vane Angle 4 or 5 when the cumulative operation time of compressor exceeds hour, the vane angle automatically changes to Angle for dew prevention. (6) SWING MODE ( ) By selecting SWING mode with the VANE CONTROL button, the horizontal vane swings vertically.the remote controller displays.swing mode is cancelled when the VANE CONTROL button is pressed once again or in cool mode ECONO COOL button is pressed. 09

110 (7) Cold air prevention in HEAT operation<muh07/09/rv,mxz8/rv> When any of the following conditions occurs in HEAT operation, the horizontal vane angle changes to Angle automatically to prevent cold air blowing on users. Compressor is not operating. ➁ Defrosting is performed. ➂ Indoor coil thermistor RT reads 4: or below. ➃ Indoor coil thermistor RT temperature is raising from 4 C or below, but it does not exceed 8:. Indoor coil thermistor RT temperature Released Cold air prevention 4: 8: Horizontal vane Set position Angle NOTE : If the temperature of RT reads from 4 C to 8 C at the air conditioner stating, this control works. (8) ECONO COOL ( ) operation (ECONOmical operation) When the ECONO COOL button is pressed in COOL mode, set temperature is automatically set C higher than that in COOL mode. Also the horizontal vane swings in various cycle according to the temperature of indoor heat exchanger(rt). SWING operation makes you feel cooler than set temperature. So, even though the set temperature is higher than that in COOL mode, the air conditioner can keep comfort. As a result, energy can be saved. NOTE : ECONO COOL operation not work in COOL mode of I FEEL CONTROL. SWING operation In swing operation of ECONO COOL operation air flow is initially blew out upward(levelly). According to the temperature of indoor coil thermistor RT at starting of this operation, next downward blow time is decided. Then when the downward blow has been finished, next upward blow time is decided. For initial 0 min. the swing operation is performed in table G~H for quick cooling(but G : RT is 4: or less). Also, after 0 min. when the difference of set temperature and room temperature is more than degrees, the swing operation is performed in table D~H for more cooling(but D: RT is 0: or less). The air conditioner repeats the swing operation in various cycle as follows. Temperature of indoor coil thermistor RT Downward blow time (sec.) Upward(level) blow time (sec.) A B C D E F G H 5 C or less 5 C to 7 C 7 C to 8 C 8 C to 0 C 0 C to C C to C C to 4 C more than 4 C ECONOmical operation (SET TEMPERATURE) When this operation is selected in MANUAL COOL mode, SET TEMPERATURE is automatically set C higher than that in MANUAL COOL mode. By above SWING operation temperature that you feel can decrease by C. So keeping comfort, energy can be saved. 8. TIMER OPERATION. How to set the timer () Press OPERATE/STOP(ON/OFF) button to start the air conditioner. () Check that the current time is set correctly. NOTE : Timer operation will not work without setting the current time. Initially AM0:00 blinks at the current time display of TIME MONITOR, so set the current time correctly with CLOCK SET button. () Press ON or OFF TIMER buttons to select the operation. button... AUTO START operation (ON timer) button... AUTO STOP operation (OFF timer) 0

111 (4) Press HR. and MIN. button to set the timer. Time setting is 0minute units. HR. and MIN. button will work when or mark is flashing. These marks disappear in minute. After setting the ON timer, check that Operation indicator lamp of the indoor unit lights. NOTE : Be sure to place the remote controller at the position where its signal can reach the air conditioner even during TIMER operation, or the set time may deviate within the range of about 0 minutes. NOTE : Reset the timer in the following cases, or the set time may deviate and other malfunctions may occur. A power failure occurs. The circuit breaker functions.. Cancel TIMER setting can be cancelled with the ON or OFF TIMER buttons. ( or ) To cancel the ON timer, press the button. To cancel the OFF timer, press the button. TIMER is cancelled and the display of set time disappears. PROGRAM TIMER The OFF timer and ON timer can be used in combination. and display shows the order of the OFF timer and ON timer operation. (Example ) The current time is 8:00 PM. The unit turns off at :00 PM, and on at 6:00 AM. (Example ) The current time is :00 AM. The unit turns on at 5:00 PM, and off at 9:00 PM. NOTE : TIMER setting will be cancelled by power failure or breaker functioning. 9. EMERGENCYTEST OPERATION When the remote controller is missing, has failed or the batteries run down, use the EMERGENCY OPERATION switch on the front of the indoor unit for operation. The unit will start and the Operation Indicator lamp will light. The first 0 minutes of operation is the test run operation. This operation is for servicing. The indoor fan speed runs at Hi notch and the system is in continuous operation.(the thermostat is ON.) After 0 minutes of test run operation the system shifts to EMERGENCY COOL / HEAT<MUH07/09/RV,MXZ8/RV> MODE with a set temperature of 4 C. The fan speed shifts to Me notch. This operation continues until the EMERGENCY OPERATION switch is pressed once again(mu07/09/rv,.mux 0/8/4RV)/ once or twice(muh07/09/rv, MXZ8/RV) or the unit receives any signal from the remote controller. In case of latter normal operation will start. The coil frost prevention works even in this operation, and defrosting <MUH07/09/RV,MXZ8/RV> too. In the test run or emergency operation, the horizontal vane operates in VANE AUTO mode. NOTE : Do not press the EMERGENCY OPERATION switch during normal operation. Press once <Cool> OPERATION INDICATOR lamp EMERGENCY OPERATION switch Press again <Heat> Press once again <Stop> wheat is available only in MUH07/09/RV,MXZ 8/RV.

112 0.INVERTER MULTI SYSTEM CONTROL 0..System organization MXZ8RV E <Electronic controls> Indoor unit A Compressor secondary current Compressor primary current Indoor unit B Outdoor unit microprocessor Drive circuit Transistor Fin module temperature thermistor RT6 X64 SSR X60 X67 Compressor <Refrigerant circuit> Room A Gas pipe temperature thermistor High pressure switch Discharge temperature thermistor RT6 Accumulator Indoor unit A Indoor unit B Room B Gas pipe temperature thermistor Suction temperature thermistor RT66 Evaporation temperature thermistor RT67 Reversing valve Capillary tube Outdoor fan motor Indoor unit B LEV B Defrost thermistor RT6 Indoor unit A LEV A

113 MXZRV E Indoor unit microprocessor Power factor Compressor primary current Compressor secondary current Outdoor unit control microprocessor SSR SSR Drive circuit SSR Transistor module Fin temperature thermistor RT6 Crankcase heater Comp. L.P.S Accumulator Indoor Unit D Indoor Unit C Indoor Unit B Indoor Unit A Inner thermostat H.P.S Discharge temperature thermistor RT6 Reversing valve Gas pipe temperature thermistor RT66, 67, 68, 69 Suction temperature thermistor RT65 way valve Evaporation temperature thermistor RT64 x 6 x 6 x 6 Outdoor fan motor Indoor Unit A Indoor Unit B Indoor Unit C Indoor Unit D LEV LEV LEV LEV4 Defrost thermistor RT6

114 0..LEV control Linear expansion valve (LEV) is controlled by "Thermostat ON" commands given from each unit. Indoor unit status All indoor units OFF Nonopening indoor unit Thermostat OFF in COOL or DRY mode MXZ8RV Before shutdown 50 pulse COOL : 5 pulse HEAT : 49 pulse Outdoor unit ON (Indoor unit ON) : 5 pulse Outdoor unit OFF (Indoor unit OFF or Thermostat OFF) : Before shutdown LEV opening MXZRV pulse COOL : 5 pulse HEAT : 59 pulse Outdoor unit ON (Indoor unit ON) : 5 pulse Outdoor unit OFF (Indoor unit OFF or Thermostat OFF) : pulse Thermostat ON in COOL mode Thermostat ON in DRY mode Thermostat OFF in HEAT mode Thermostat ON in HEAT mode Refer to the standard LEV opening as shown below. From the initial valve, the LEV opening is controlled according to suction superheat and the discharge temperature. Refer to the standard LEV opening as shown below. Outdoor unit ON (Indoor unit ON) : 49 pulse Outdoor unit OFF (Indoor unit OFF or Thermostat OFF) : Before shutdown Outdoor unit ON (Indoor unit ON) : 5 pulse Outdoor unit OFF (Indoor unit OFF or Thermostat OFF) : pulse Refer to the standard LEV opening as shown below. From the initial valve, the LEV opening is controlled according to the suction superheat and the discharge temperature. For the differential startup, the LEV is controlled at 5 pulse for the first 5 minutes after compressor stop. Standard LEV opening There are 0 levels specified for standard LEV opening depending on the compressor operational frequency. Based on these standard valves, the LEV opening is modified according to the suction super heat, discharge temperature, and gas pipe temperature. <LEV opening> Level 0 Level 09 Level 08 Level 07 Level 06 Level 05 Level 04 Level 0 Level 0 Level 0 Hysteresis width =5Hz < COMP Hz > <Standard LEV opening by capacity code> Capacity class Level 0 Level 0 Level 0 Level 04 Level 05 Level 06 Level 07 Level 08 Level 09 Level 0 MXZ8RVE 07,09 55/70 55/70 55/70 55/70 55/70 55/80 55/ 55/00 55/0 55/0 55/ 55/ 55/ 55/ 55/ 55/00 55/0 55/0 55/0 55/40 07,09 00/70 00/70 00/ 00/0 00/0 0/50 0/70 0/ 40/0 50/0 MXZRVE, 40/ 40/ 40/0 40/0 40/50 50/70 60/ 70/0 80/0 / /00 60/00 60/0 60/40 60/60 70/80 80/00 /0 00/40 0/60 4

115 LEV opening correction by suction super heat (Suction super heat) = (Suction temperature) (Evaporation temperature) The LEV opening is corrected as shown in the following table. Suction superheat (S.H.) more than 0 8 to0 7 to 8 5 to 7 4 to 5 4 or less LEV opening correction (pulse) MXZ8RV E MXZRV E Cooling Heating Cooling Heating LEV opening correction by discharge temperature The LEV opening is corrected to 55 pulse when it has been corrected consecutively 0 times due to the discharge temperature (Td) of 60; or below, or when the discharge temperature falls below 5 C. When such a status has continued for 0 minutes, the compressor stops and enters the minute time delay. If the compressor stops five times during a continuous operation, the unit stops due to abnormality. LEV opening correction (pulse) Discharge temperature (:) MXZ8RV E Cooling Heating Discharge temperature (:) Two units or more Cooling Heating MXZRV E For capacity class 07 or 09 in single unit operation Discharge temperature (:) Cooling Discharge temperature (:) Heating more than 85 to 80 to to to to to or less more than to 00 to to 80 to to to or less more than to 00 9 to to 9 80 to to to or less more than to 00 to to 80 to 85 7 to to 7 65 or less For capacity class () or 8 in singleunit operation, the stabilized range shifts to the next higher level. I. e. Cooling : 85 to 9 ( Heating : 80 to 9 ).LEV opening correction by gas pipe temperature (effective in cooling operation only.) () Maximum correction width : +4 pulse () Single correction width :,, or pulse () Control details ) S.H. HEX of each operating unit is calculated by using the following formula. S.H. HEX (i) = (Gas pipe temperature (i)) (Evaporation temperature) ) The minimum valve is selected from each S. H. HEX. ) From S. H. HEX (i) calculated in step ) and the minimum value obtained in step ), the difference of each S. H. HEX ( S. H. HEX (i)) is calculated as follows. S. H. HEX (i) = (S. H. HEX (i) S. H. HEX (min)) 4) Each LEV opening is controlled based on S. H. HEX (i) obtained in step 4). S. H. HEX (i) and LEV control width Range of S. H. HEX (i) LEV variation for corresponding unit S. H. HEX (i) to deg 0 to S. H. HEX (i) to 6 deg + 6 to S. H. HEX (i) to 9 deg + 9 to S. H. HEX (i) + 5

116 0..Control by the number of operating indoor unit The compressor operational frequency and the LEV opening are controlled depending on the number of operating indoor units..compressor operational frequency The variable range of compressor operational frequency changes according to the operation signal (capacity code and temperature difference) given from the operating indoor unit (s). When the number of operating indoor units is reduced during heating operation, the operational frequency will decrease by 0 Hz in one minute. After that, the operational frequency will return to the variable status..lev opening The LEV opening varies according to the operation signal given from the operating indoor unit (s). When the number of operating indoor units is reduced during heating operation, the LEV opening will be fixed to the current valve for one minute. After that, the LEV opening will return to the variable status. 0.4.Selection of operation mode () When a single indoor unit is operating, the system operates in the mode as selected by that indoor unit. () When two indoor units are operating in the same mode, the system operates in that mode. () Simultaneous COOL and HEAR operation is unavailable within a system. The indoor unit activated earlier has the priority to decide the operation mode of the system. The other unit enters the standby status when it receives the order to operate in a different mode. To operate these units in the same mode from such a status, reset both units to the same operation mode, turned them off, and then turn them back on. (4) Simultaneous COOL and DRY operation is available within a system. In this case, the outdoor unit operates in the COOL mode. (The outdoor unit operates in the DRY mode only when all the indoor units are operating in the DRY mode.) 0.5.Outdoor fan control The outdoor fan turns ON according to "Compressor ON" commands given from each indoor unit. Total Number of operating indoor unit Cooling Heating capacity code Number 05 operating indoor unit One unit Low One unit Hi Hi MXZ8RV E MXZRV E Two unit Low Me Three unit Me Two unit Hi Hi Four unit Me Indoor unit capacity class Capacity code 07/09 () 8 4 The outdoor fan is controlled at High speed for the first 0 seconds after startup. In addition, the outdoor fan speed temporarily changes to High during the compressor and inverter protection..compressor shell overheat protection When a single unit is operating in a system with the LEV fully open and the discharge temperature at 95; or above, the outdoor fan speed changes to High. It is released when the number of operating indoor units has changed, the operation mode has changed, or the power has turned OFF..Inverter overheat protection When the fin temperature thermistor detects 88; or above, the indoor fan speed changed to High. It is released when the compressor has turned OFF..After defrosting during heating operation, the outdoor fan speed shifts to the next higher level. I. e. Low to Me ( Me to High ) 6

117 0.6.Operational frequency range Compressor operational frequency range () COOLING MXZ8RV E Number of Indoor unit operating unit capacity class 07 or or Minimum 4 4 Maximum DRY mode Rating MXZRV E Number of operating unit 4 Total capacity code Minimum Maximum DRY mode Rating () HEATING MXZ8RV E Number of Indoor unit operating unit capacity class Minimum Maximum DEFROST mode Rating 07 or MXZRV E Number of operating unit 4 Total capacity code Minimum Maximum DEFROST mode 05 Rating

118 0.7.Defrosting in heating <Conditions to start defrosting> The system starts defrosting when it satisfies both of the following conditions : The defrost thermistor detects C or below. ➁ Defrost interval (I. e. the accumulated compressor operation time) counted by the controller board has reached the prescribed value. <Details of defrosting> The compressor stops for.5 seconds and the indoor fan turns OFF. ➁ The reversing value reverses and the compressor runs at the defrosting frequency. After the defrosting termination conditions are satisfied, the compressor stops for.5 seconds and the reversing valve reverses. This is the end of defrosting. <Conditions to terminate defrosting> The system terminates defrosting when it satisfies, either of the following conditions : The defrost thermistor detects +0 C or above. ➁ Defrosting time has reached 0 minutes. 0.8.High and low pressure protection () High pressure protection in heating The operational frequency, way valve (only MXZRV), and outdoor fan motor are controlled according to the indoor coil temperature. When it rises to nearly 50 C, the operational frequency will be fixed to the value at the moment and the outdoor fan speed will change to low. When it rises to nearly 5 C, the operational frequency will be reduced by 4 Hz from the current value and the way valve will open. () High pressure protection by high pressure switch (H.P.S : MXZ8RV, 6H : MXZRV) The operational frequency, way valve (only MXZRV), and outdoor fan motor are controlled by the high pressure switch to protect excessive high pressure. <Condition to active the protection> The high pressure protection starts when the high pressure switch turns ON, that is the discharge pipe pressure rises to MPa (8 kg/cm 0..0 ) or above. <Protection details> a) In COOL or DRY mode The way valve opens. The compressor operational frequency decreases at a rate of 0 Hz/minute. b) In HEAT mode The way valve opens. The compressor operational frequency decreases at a rate of 0 Hz/minute. The outdoor fan runs at the Low speed. <Condition to release the protection> The protection is released when the high pressure switch turns OFF, that is, the discharge pipe pressure falls to.4±0.5mpa (4.5 ±.5 kg/cm ) or below. () Low pressure protection by low pressure switch (only MXZRV) The compressor ON/OFF, operational frequency, way valve, and LEV opening are controlled by the low pressure switch to protect excessive low pressure. <Condition to active the protection> The protection starts when the low pressure switch turns ON, that is, the suction pipe pressure falls to 0.05 ± 0.04MPa (0.5 ± 0.4 kg/cm ) or below. <Protect details> The way valve opens. The compressor operational frequency decreases at a rate of 0 Hz/minute. The LEV opens at a rate of 0 pulse/minute. When such a status has continued for five minutes, the compressor will turn OFF and the error content will be displayed. <Condition to release the protection> The protection is released when the low pressure switch turns OFF, that is, the suction pipe pressure falls to 0.5±0.04MPa (.5 ± 0.4 kg/cm ). (4) High pressure protection by high pressure switch (6H : MXZRV ) The compressor is turned OFF by the high pressure switch to prevent excessive high pressure. <Condition details> The compressor stops operation. <Condition to release the protection> The compressor is turned OFF once and turned ON again. 8

119 0.9.Discharge temperature protection The compressor ON/OFF and operational frequency are controlled according to the discharge temperature. () Compressor ON/OFF The compressor turns OFF when the discharge temperature thermistor rises above 0 C. The compressor turns ON when the discharge temperature thermistor falls below 80 C. () Compressor operational frequency When the estimated discharge temperature is high than 0 C, the compressor operational frequency will decrease by 8 Hz from the current operational frequency. When the estimated discharge temperature is over 5 C to 0 C inclusive, the compressor operational frequency will decrease by 4 Hz from the current operational frequency. When the estimated discharge temperature is over 07 C to 5 C inclusive, the compressor operational frequency will be fixed to the current operational frequency. 0.0.Refrigerant recovery in heating <Conditions to active refrigerant recovery> The system activates refrigerant recovery when it satisfies all the following conditions : One or more indoor unit are standstill during heating operation. (It does not include the "Thermostat OFF" starts.) The discharge temperature rises to 07 C or above. Sixty minutes or more have passed since the operation startup or the last refrigerant recovery. <Control details> The LEV opening is controlled at 80 pulse for the nonoperating indoor unit(s). <Conditions to discontinue refrigerant recovery> The system discontinues refrigerant recovery when it satisfies either of the following conditions. Then the LEV opening is controlled to 59(MXZRV) / 49(MXZ8RV) pulse. Sixty seconds have passed since the startup of refrigerant recovery. The discharge temperature falls to ;(MXZRV) / 00;(MXZ8RV) or below. 0..Sensors and actuators Relation between major sensors and actuators. Sensor Discharge temperature thermistor Purpose Compressor Protection LEV Actuator Outdoor fan motor Reversing valve way valve (MXZRV) Defrost thermistor Defrosting Suction temperature thermistor Control Evaporation temperature thermistor Control Gas pipe temperature thermistor Control High pressure switch Protection Low pressure switch (MXZRV) Protection Fin temperature thermistor Protection Capacity code Control 9

120 SERVICE FUNCTIONS MSC07RV E MU07RV E MUH07RV E MUX0RV E MXZ8RV E MSC09RV E MU09RV E MUH09RV E MUX8RV E MXZRV E MSCRV E MURV E MUHRV E MUX4RV E. COMPULSORY DEFROSTING MODE FOR SERVICE<MUH07/09/RV> By short circuit of the connector JP607 and R85 on the outdoor deicer P.C. board, defrosting mode can be accomplished regardless of the defrost interval restriction. (See page 4.) Defrost thermistor RT6 must read below C.. CHANGE IN DEFROST SETTING<MUH07/09/RV>W MXZ8/RV is not equipped with this function. <JPC> when the JPC wire of the deicer P.C. board is cut, the defrost interval time will be changed. (See page 4.) <JPE> when the JPE wire of the deicer P.C. board is cut, the defrost temperature will be changed. (See page 4.) MODEL Jumper wire Change point MUH07RV MUH09RV MUHRV E E E JPC JPE Defrost interval time changes from 40 minutes to 5 minutes Deforst start temperature changes from : to 0: Deforst finish temperature changes from.: to 0.:.. TIMER SHORT MODE For service, set time can be shortened by short circuit of JPG and JPS the electronic control P.C. board. The time will be shortened as follows. minutes delay : minutes seconds. AUTO START : hour minute Short the connector during the timer mode. AUTO STOP : hour minute } 4. P.C. BOARD MODIFICATION FOR INDIVIDUAL OPERATION A maximum of 4 indoor units with wireless remote controllers can be used in a room. In this case, to operate each indoor unit individually by each remote controller, P.C. boards of remote controller must be modified according to the number of the indoor unit. How to modify the remote controller P.C. board Remove batteries before modification. The board has a print as shown below : NOTE : For remodelling, take out the batteries at first. After finish remodelling, put back the batteries then push the RESET button. The P.C.board has the print J and J.Jumper wires are mounted to each J and J.Cut J and J according to the number of indoor unit as shown in Table. After modification,push the reset button. Table. No. unit No. unit No. unit unit operation No modification units operation Same as at left Cut J units operation Same as at left Same as at left Cut J 4 units operation Same as at left Same as at left Same as at left No. 4 unit Cut both J and J NOTE : At power supply failure or installation, indoor unit deletes the memory about remote controller. When the power supply is turned on and indoor unit receives the first signals from the remote controller, the remote controller number is designated as the indoor unit number. Therefore at and after the second time indoor unit accepts the remote controller of the initial setting number. At setting error, turn the power supply off to cancel the individual operation and then turn the power supply on to restart the setting. 0

121 5. MU TYPE / MUH TYPE SWITCH OVER AND AUTO RESTART FUNCTION. MU TYPE / MUH TYPE SWITCH OVER The indoor units for MU type and MUH type are common specifications. Set switch according to the type of outdoor unit.the units are set for MUH type when they are shipped from the factory. How to switch over MU TYPE / MUH TYPE! Turn off the main power for the Pull out the electronic control P.C. board, and change switch(sw) on the indoor electronic control P.C. board according to the type of outdoor unit as following figures. Outdoor unit MU & MUX type Set switch upside. Outdoor unit MUH& MXZ type Set switch downside. SW sets the AUTO RESTART FUNCTION ON / OFF. SW switches over the MU type/ MUH type. When the units are shipped from the factory, SW is as follows. SW: AUTO RESTART FUNCTION OFF SW: MUH type } How to set AUTO RESTART FUNCTION! Turn off the main power for the Pull out the electronic control P.C. board, and change switch(sw) on the indoor electronic control P.C. board as follow figures. C CN0 TAB CN0 C IC0 CN IC5 CN CN CN SW CN5 SW SW INDOOR ELECTRIC CONTROL P.C. BOARD SW SW NOTE: If the indooroutdoor connecting wire is incorrectly connected on the terminal block, the unit does not operate normally. If a ground is incorrect, it may cause an electric shock.. AUTO RESTART FUNCTION When the indoor unit is controlled with the remote controller, the operation mode, set temperature, and the fan speed are memorized by the indoor electronic control P.C.board. The AUTO RESTART FUNCTION sets to work the moment power has restored after power failure.then, the unit will restart automatically. However if the unit is operated in I FEEL CONTROL mode before power failure, the operation is not memorized. In I FEEL CONTROL mode, the operation is decided by the initial room temperature. AUTO RESTART FUNCTION is OFF when the units are shipped from the factory. SW AUTO RESTART FUNCTION OFF Set switch upside. AUTO RESTART FUNCTION ON Set switch downside. SW SW Operation! If the main power (0/40V AC) has been cut, the operation settings After the power is restored, the unit restarts automatically according to the memory.(however, it takes at least minutes for the compressor to start running.) NOTE The operation settings are memorized when 0 seconds have passed after the remote controller was operated. If main power is cut while AUTO START/STOP timer is active,the timer setting is cancelled. If the unit has been off with the remote controller before power failure, the auto restart function does not works as the power button of the remote controller is off. To prevent breaker off due to the rush of starting current, systematize other home appliance not to turn on at the same time. When some air conditioners are connected to the same supply system, if they are operated before power failure, the starting current of all the compressors may flow simultaneously at restart. Therefore, the special countermeasures are required to prevent the main voltagedrop or the rush of the starting current by adding to the system that allows the units to start one by one.

122 TROUBLESHOOTING MSC07RV E MU07RV E MSC09RV E MU09RV E MSCRV E MURV E MUH07RV E MUH09RV E MUHRV E MXZ8RV E MXZRV E. Cautions on troubleshooting. Before troubleshooting, check the following: ) Check the power supply voltage. ) Check the indoor/outdoor connecting wire for miswiring.. Take care the following during servicing. ) Before servicing the air conditioner, be sure to first turn off the remote controller to stop the unit, and then after confirming the horizontal vane is closed, turn off the breaker and / or disconnect the power plug. ) Be sure to unplug the power cord before removing the front panel, the cabinet, the top panel, and the electronic control P.C. board. ) When removing the electronic control P.C. board, hold the edge of the board with care NOT to apply stress on the components. 4) When connecting or disconnecting the connectors, hold the housing of the connector. DO NOT pull the lead wires. Lead wiring Housing point. Troubleshooting procedure ) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on and off to indicate an abnormality. To make sure, check how many times the abnormality indication is flashing on and off before starting service work. ) If the electronic control P.C. board is supposed to be defective, check the copper foil pattern for disconnection and the components for bursting and discoloration. ) When troubleshooting, refer to the flow chart on page, 4 and the check table on page 5~7. 4. How to replace batteries Weak batteries may cause the remote controller malfunction. In this case, the remote controller can not be repaired only by the battery replacement. To operate the remote controller normally, discharge the remote controller in the following order. This remote controller has the RESET button. After refilling new batteries, press the RESET button with tip end of ball point pen or the like, and then use the remote controller. RESET button

123 . Instruction of troubleshooting <MU07/09/RV,MUH07/09/RV,MUX0/8/4RV> (Refer to page 4 for MXZ8/RV) Start Indoor unit operates. Outdoor unit doesn t operate. Outdoor unit operates in only Test Run operation. Outdoor unit doesn t operate even in Test Run operation. Indoor unit doesn t receive the signal from remote controller. Refer to B Check of remote controller and receiver P.C. board on page. time flash OPERATION INDICATOR lamp on the indoor unit is flashing on and off. time flash.5second OFF time flash.5second OFF Indoor unit doesn t receive the signal from remote controller. Also, OPERATION INDI CATOR lamp doesn t light, when the EMER GENCY OPERATION switch is pressed. Refer to C Check of indoor electronic control P.C. board on page. Check room temperature thermistor. Refer to D Check of outdoor unit on page and 4. Refer to E How to check miswiring and signal error (when outdoor unit doesn t work) on page 5. Cause:indoor/outdoor unit connecting Trouble of miswiring ( Trouble of the serial signal Cause:Indoor unit timeroom temperature/indoor coil thermistor trouble timeindoor fan motor trouble Check indoor coil thermistor. Refer to Test point diagram and voltage on page 4. Refer to A Check of indoor fan motor on page. 6time flash.5second OFF Cause:outdoor unit 6timeCheck the defrost thermistor Check room temperature thermistor. Refer to Test point diagram and voltage on page 4. <The case of the trouble of the serial signal> When the power is turned off and then turned on again, the indication shows the trouble of miswiring.

124 <MXZ8RV,MXZRV> The other cases Indoor unit dose not operate.(different modes ) When you try to operate two or more indoor units with one outdoor unit simultaneously, one for the cooling and the other for heating, the operation mode of the indoor unit that operates earlier is selected. The other indoor units that will start the operation later cannot operate, indicating as shown in the figure below. In this case, please set all the indoor units to the same operation mode. OPERATION INDICATOR Lighting Frashing When indoor units starts the operation while the defrosting of outdoor unit is being done, it takes a few minutes (max.0 minutes) to blow out the warm air. In the heating operation, though indoor unit that dose not operate may get warm or the sound of refrigerant flowing may be heard, they are not malfunction. The reason is that the refrigerant continuously flows into it. Operation start Indoor unit operates. Outdoor unit dosen't operate. Outdoor unit operates in only Test Run operation. Check room temperature themistor. Outdoor unit doesn't operates even in Test Run operation. Refer to "F Simple check methods for inverter/ compressor" on page 6. Refer to T "Miswiring or mispiping" on page 40,4. Indoor unit doesn't receive the signal from remote controller. Outdoor unit operates in only Test Run operation time flash Cause:indoor/outdoor unit connecting Trouble of miswiring Trouble of the serial signal OPERATION INDICATOR lamp on the indoor unit is flashing on and off. time flash time flash.5 second OFF.5 second OFF Cause:indoor unit timeroom temperture/ indoor coil thermistor trouble timeindoor fan motor trouble Indoor unit dosen't receive the signal from remote controller. Also, OPERATION INDICATOR lamp doesn't light, when the EMERGENCY OPERATION switch is pressed. Refer to c "Check of indoor electronic controll P.C. board" on page. 5time flash 6time flash 7time flash.5 second OFF.5 second OFF.5 second OFF Cause:Outdoor unit 5timePower system abnormality 6timeThermistor abnormality 7timeControl system error Check indoor coil thermistor. Refer to "Test point diagram and voltage on page 4. Refer to A "Check of indoor fan motor" on page. Check room temperature thermistor. Refer to "Test point diagram and voltage on page 4. L Outdoor thermistor See page 8. NOTE:In case of serial signal error, the miswiring indication will apper by turning the power off and turning it back on. Inverter Compressor NOTE:Enclosed by the broken line are the indoor unit related parts. G to K Compressor See page 6,7. G to K Transistor module See page 6,7. P Power supply See page 9. Outdoor controll P. C. board M Reversing valve coil. See page 8. High pressure switch Only MXZRV Low pressure switch Compressor thermostat Linear expansion valve N Outdoor fan motor. See page 9. 4

125 . troubleshooting check table <INDOOR UNIT> lighting Operation Indicator not lighting Before taking measures, make sure that the symptom reappears, for accurate troubleshooting. Self check table NO. Abnormal point Indication Symptom Detect method Check point Miswiring Serial signal 0.5second ON 0.5second OFF time flash Outdoor unit does not run. When serial signal stops for 4 to 5 seconds after st on of 5C relay by POWER turning on. When serial signal from outdoor unit stops for 4 to 5 seconds. Check switch SW.(MU type or MUH type) Check wiring (visual check and conductivity check). Check indoor electronic control P.C.board. Check outdoor DEICER P.C. board. Check electrical parts..5second OFF Indoor coil thermistor Room temperature thermistor time flash.5second OFF Outdoor unit does not run. Detect Indoor coil/room temperature thermistor short or open circuit every 8 seconds during operation. Check resistance of thermistor. Reconnect connector. Check indoor electronic control P.C.board. Indoor fan motor time flash.5second OFF Indoor fan motor repeats seconds ON and minutes OFF. When the indoor fan motor breaks, the fan keeps stopping. When rotational frequency feedback pulse signal is not emit during second indoor fan operation. Disconnect connector CN and then check connector CN to make sure rotational frequency feedback signal of.5v or over exists. Check indoor electronic control P.C. board. Check indoor fan motor. Reconnect connector. 4 Outdoor power system 5time flash.5second OFF Outdoor unit does not run When compressor has stopped due to over current protection or startup failure protection times in a row within min. after startup. Check inverter and compressor. 5 Defrost thermistor 6time flash.5second OFF Outdoor unit does not run When the defrost thermistor shorts or opens after the compressor startup. Check outdoor DEICER P.C. board.(muh) Check outdoor control P.C. board. (MXZ) Check resistance of thermistor. Reconnect connector. 6 Out door control system error 7time flash.5second OFF Outdoor unit does not run Check outdoor control P.C. board. 7 Out door refrigerant system error 0time flash.5second OFF Outdoor unit does not run When the compressor operation has been interrupted by Outdoor control P. C. board. Amount of gas. LEV protection continuously 5 Contact of LEV board connectors. times, the compressor stops operation. 5

126 <OUTDOOR UNIT> (Only MXZ8/RV) () Troubleshooting table Note. LED indicates "00" in the normal status. 7segment LED display 00 Error mode Normal <MXZRV> If there is defect in the following parts(electronic control P.C. board, relay P.C. board, high pressure switches(6h,6h),indoor /outdoor fan motor, or indoor coil thermistor), the compressor may stop even with the display remained at 00.In any case, reset the breaker and check the abovestated parts. Symptom Display Detecting method Detecting method Check points a4 (A4) Outdoor power system abnormality Outdoor unit does not operate. When the compressor operation has been interrupted by overcurrent protection continuously three times within minute after startup, the compressor stops operation. Inverter output Compressor a (A) a (A) p (P) p (P) Outdoor refrigerant system abnormality (LEV abnormality) Outdoor controller board abnormality <Only MXZRV> Compressor temperature abnormality Indoor unit and LEV abnormality When the compressor operation has been interrupted by LEV protection continuously five times, the compressor stops operation. When the nonvolatile memory data cannot be read properly on the outdoor controller board When the compressor has remained OFF for continuous thirty minutes by inner thermostat function When the drain abnormality is detected in the indoor unit and the indoor main coil temperature is too low, or when any abnormality is detected in the components of indoor unit Amount of gas Outdoor control P.C. board Contact of LEV board connectors Outdoor control P.C. board Outdoor air cycle Amount of gas Outdoor fan motor Outdoor heat exchanger (dust adherence) Check the abnormality indication on the indoor unit. LEV Symptom Outdoor unit stops and restarts every minutes. Display Detecting method Detecting method Check points e8 (E8) Suction temperature thermistor abnormality The compressor stops when a short or open circuit occurs in the suction temperature thermistor during compressor running. Check the characteristic of the suction temperature thermistor. Refer to L on page 8. Check the contact of P. C. board connectors. e9 (E9) e6 (E6) f8 (F8) a8 (A8) d6 (d6) d4 (d4) Evaporation temperature thermistor abnormality Discharge temperature thermistor abnormality Fin temperature thermistor abnormality Overcurrent protection Discharge temperature overheat protection Fin temperature overheat protection The compressor stops when a short or open circuit occurs in the evaporation temperature thermistor during compressor running. The compressor stops when a short or open circuit occurs in the discharge temperature thermistor during compressor running. The compressor stops when a short or open circuit occurs in the fin temperature thermistor during compressor running. When over current is applied to the power module, the compressor stops and restarts in minutes. When the discharge temperature thermistor detects 0 C or above, the compressor stops and restarts operation in minutes. ((Protection will be released at 80; or below.) When the fin temperature thermistor detects 88 C or above, the compressor stops and restarts operation in minutes. Check the characteristic of the evaporation temperature thermistor. Refer to L on page 8. Check the contact of P. C. board connectors. Check the characteristic of the discharge temperature thermistor. Refer to L on page 8. Check the contact of P. C. board connectors. Check the characteristic of the fin temperature thermistor. Refer to L on page 8. Check the contact of P.C. board connectors. Check the inverter and compressor. Refer to G to K on page 6,7. Check the amount of gas. Check the indoor/outdoor air flow for short cycle. Check the indoor unit air filter for clogging Check the amount of gas and the refrigerant cycle. Check the outdoor unit air passage. Check the outdoor unit air passage. Check the power module. Check the outdoor fan motor. Refer to N on page 9. 6

127 d (d) d (d) p4 (P4) <Only MXZRV> Low pressure switch protection Low discharge temperature protection <Only MXZRV> Compressor stop by thermostat function When the low pressure has been 0.05Mpa(0.5 kgf/cm G) for 5 minutes or more, the compressor stops and restarts in minutes. When the discharge temperature has been 5 C or below for 50 minutes or more, the compressor stops and restarts operation in minutes. When the compressor inner thermostat detects 0 C or above, the compressor stops and restarts operation in minutes. Check the ball valve. Check the pipes for bending or clogging Check the LEV operation. Replace the outdoor controller board. Check the amount of gas. Replace the outdoor controller board. Check the contact of LEV board connectors. Check the inverter output. Refer to G to K. Check the compressor. Check the amount of gas. Check the indoor unit air filter for clogging. Check the indoor/outdoor air flow for short cycle. Symptom Display Detecting method Detecting method Check points d8 (d8) d9 (d9) d7 (d7) d6 (d6) d (d) d (d) Frequency drop by current protection Frequency drop by overload protection Frequency drop by high pressure protection Frequency drop by defrosting in cooling Frequency drop by discharge temperature protection Frequency drop by high pressure switch protection <Only MXZRV> Frequency drop by low pressure switch protection Outdoor unit operates. (The compressor operates at reduced frequency.) When the outdoor unit input current exceeds 6A(MXZ8RV).5 A (MXZRV), the compressor operates at reduced frequency. When the compressor load exceeds the specified value, the compressor operates at reduced frequency. When indoor pipe temperature exceeds 55 C during heating, the compressor operates at reduced frequency. When the indoor pipe temperature falls to 6 C or below during cooling, the compressor operates at reduced frequency. When the discharge temperature exceeds 5 C, the compressor operates at reduced frequency. When the high pressure exceeds.75mpa (8 kgf/cm G), the compressor operates at reduced frequency. In addition, the twoway valve reverses and the fan speed changes. When the low pressure falls to 0.05Mpa or below, the compressor operates at reduced frequency. In addition, the twoway valve opens. These symptoms do not mean any abno mality of the product, but check the follingpoints. Air filter clogging Amount of gas Short cycle of indoor/outdoor air flow Amount of gas Outdoor unit air passage Ball valve LEV operation Pipe bending or clogging Outdoor control P.C. board Symptom Display Detecting method Detecting method Check points e7 (E7) Defrost thermistor abnormality Outdoor unit operates. When a short or open circuit occurs in the defrost thermistor during heating * In this case, the compressor continues to operate. Defrost thermistor characteristic Contact of P. C. board connectors f5 (F5) f6 (F6) f7 (F7) p9 (P9) RoomA pipe temperature thermistor abnormality RoomB pipe temperature thermistor abnormality <Only MXZRV> RoomC pipe temperature thermistor abnormality <Only MXZRV> RoomD pipe temperature thermistor abnormality When a shot or open circuit occurs in the RoomA pipe temperature thermistor * In this case, the compressor keeps running. When a short or open circuit occurs in the RoomB pipe temperature thermistor * In this case, the compressor keeps running. When a short or open circuit occurs in the RoomC pipe temperature thermistor * In this case, the compressor keeps running. When a short or open circuit occurs in the RoomD pipe temperature thermistor * In this case, the compressor keeps running. Room A pipe temperature thermistor characteristic Contact of P.C. board connectors Room B pipe temperature thermistor characteristic Contact of P.C. board connectors Room C pipe temperature thermistor characteristic Contact of P.C. board connectors Room D pipe temperature thermistor characteristic Contact of P.C. board connectors h4 (h4) Power factor detection abnormality When the compressor power factor cannot be detected * In this case, the compressor keeps running. Compressor wiring p (P) Shell temperature overheat protection When the discharge temperature rises to 95 C or above in singleunit cooling operation, the outdoor fan speed changes. Outdoor unit air passage Pipe length h6 (h6) Dry protection When five degrees or more of temperature difference have been detected between the indoor main temperature and the auxiliary pipe temperature for 0 minutes, the target discharge temperature is reduced. This symptom does not mean any abnormality in the product, but check the followings. Amount of gas Pipe length 7

128 04.. Trouble criterion of main parts MSC07RV E MSC09RV E MSCRV E Part name Room temperature thermistor Indoor coil thermistor Check method and criterion Measure the resistance with a tester. (Part temperature 0 C ~ 0 C) Normal Abnormal MSC07/09/RV Opened or 8kΩ ~ 0kΩ shortcircuited Figure Measure the resistance between the terminals with a tester. (Coil wiring temperature0 C ~ 0 C) Indoor fan motor Motor part Sensor part WHTBLK BLKRED Measure the voltage Power ON. BRNYLW YLWGRY Normal MSC07/09/RV 80 ~ 04Ω ~ 8Ω Normal MSC07/09/RV 4.5 ~ 5.5V (When fan revolved one time) 0V 5V 0V (Approx.) Abnormal Abnormal Opened or shortcircuited Remain 0V or 5V WHT RED BLK YLW GRY BRN Measure the resistance between the terminals with a tester. (Part temperature0 C ~ 0 C) RED ROTOR Vane motor Normal MSC07/09/RV 8 ~ 06Ω Abnormal Opened or shortcircuited YLW BRN ORN GRN 8

129 MU07RV E MU09RV E MURV E Part name Defrost thermistor <MUH07/09/RV> Compressor MUH07RV E MUH09RV E MUHRV E Check method and criterion Measure the resistance with a tester. (Part temperature 0 C ~ 40 C) Normal Abnormal MUH07/09/RV Opened or shortcircuited 5kΩ ~ 60kΩ Measure the resistance between the terminals with a tester. (Coil wiring temperature 0 C ~ 40 C) CR CS MU07RV.68~4.5Ω 5.08~6.Ω Normal MU09RV.55~4.5Ω 5.0~6.6Ω MURV.87~.0Ω.44~4.Ω Normal MUH07RV MUH09RV MUHRV CR CS.68~4.5Ω 5.08~6.Ω.9~.56Ω 5.~6.6Ω.87~.0Ω.44~4.Ω Abnormal Opened or shortcircuited Abnormal Opened or shortcircuited Figure WHT C P AUX. MAIN S R BLK RED Measure the resistance between the terminals with a tester. (Coil wiring temperature 0 C ~ 40 C) Outdoor fan motor WHTBLK BLKRED Normal MU07/09RV MURV 7~79Ω 55 ~ 9Ω 9~46Ω 6 ~ 445Ω Abnormal Opened or shortcircuited P MAIN AUX. WHTBLK BLKRED Normal MUH07/09RV MUHRV 7~79Ω 55 ~ 9Ω 9~46Ω 6 ~ 445Ω Abnormal Opened or shortcircuited BLK REDWHT P INNER PROTECTOR 9

130 MUX0RV E MUX8RV E MUX4RV E Part name Check method and criterion Figure Measure the resistance between the terminals with a tester. (Coil wiring temperature0 C ~ 40 C) Compressor CR CS MUX0RV E MUX8RV E KH4VLL 4. ~ 5.0Ω 7. ~ 8.8Ω Normal MUX4RV E RH74VGH.9 ~.6Ω 5. ~ 6.Ω RHVHA.9 ~.Ω.4 ~ 4.Ω Abnormal Opened or shortcircuited MUX0NV P Measure the resistance between the terminals with a tester. (Coil wiring temperature 0 C ~ 40 C) BLK MUX8RV RED WHT Outdoor fan motor WHTBLK BLKRED BLKYLW YLWRED MUX0RV E 87 ~ 5Ω 47 ~ 44Ω Normal MUX8RV E 0 ~ 7Ω 57 ~ 7Ω 4 ~ 54Ω MUX4NV E 5 ~ 5Ω 9 ~ 46Ω Abnormal Opened or shortcircuited MUX4RV P BLK YLW RED ORN WHT P Solenoid coil R, RA, ( ) RB Measure the resistance with a tester. (Part temperature 0 C ~ 40 C) Normal Abnormal 60 ~ 749Ω Opened or shortcircuited BLK RED ORN WHT Solenoid coil R, R, ( R, R4 ) Measure the resistance with a tester. (Part temperature 0 C ~ 40 C) Normal Abnormal 498 ~ 84Ω Opened or shortcircuited 0

131 MXZ8RV E MXZRV E Part name Check method and criterion Defrost thermistor Suction / Evaporation / Gas pipe temperature thermistor Measure the resistance using a tester. (Part temperature 0 C ~ 40 C) Normal 5kΩ ~ 55kΩ abnormal Opened or shortcircuited Discharge temperature thermistor Compressor V WHT W RED Outdoor fan motor U BLK Measure the resistance using a tester, after warming up the thermistor by holding by hand. (Part temperature : 0 C ~40 C) Normal 00kΩ ~ 50kΩ Measure the resistance between terminals using a tester. (Winding temperature : 0 C ~ 40 C) Normal MXZ8RV MXZRV Each phase.05ω ~.9Ω Each phase 0.47Ω ~ 0.58Ω Measure the resistance between lead wires using a tester. (Part temperature : 0 C ~ 40 C) abnormal Opened or shortcircuited abnormal Opened or shortcircuited WHT P ORN RED YLW BLK MXZ8NV WHT P ORN RED BLU YLW BLK MXZNV Normal WHT BLK MXZ8RV MXZRV WHT BLK 4.0Ω ~ 76.0Ω 69.0Ω ~ 86.0Ω BLK YLW 6.0Ω ~ 78.0Ω.0Ω ~ 0.0Ω YLW BLU 0.0Ω ~.0Ω RED BLK 7.0Ω ~ 9.0Ω YLW RED.0Ω ~ 9.0Ω abnormal Opened or shortcircuited (Not including WHT ORN) Measure the resistance using a tester. (Part temperature 0 C ~ 40 C) Reversing valve coil MXZ8RV 0Ω ~ 60Ω Normal MXZRV Ω ~ 75Ω abnormal Opened or shortcircuited <Only MXZRV> Solenoid coil Linear expansion valve Measure the resistance using a tester. (Part temperature 0 C ~ 40 C) Normal 87Ω ~ 068Ω abnormal Opened or shortcircuited Measure the resistance using a tester.(part temperature 0 C ~ 40 C) YLW WHT BLU ORN RED Lead wire color WHT RED RED ORN YLW RED RED BLU Normal MXZ8RV MXZRV ~ 9Ω ~ 6Ω Abnormal Opened or shortcircuited Measure the resistance using a tester. (Part temperature 0 C ~ 40 C) High pressure switch (HPS) Low pressure switch (LPS) Compressor thermistor Only MXZRV Pressure (HPS, LPS) Inner thermistor Normal abnormal Operation OFF Operation OFF HPS.5 ± 0.5MPa (4 ±.5kg / cm ) HPS.55 ± 0.MPa (6 ± kg / cm ) LPS 0.5 ± 0.05MPa (.5 ± 0.5kg / cm ) HPS MPa ( kg / cm 0..0 ) HPS MPa (5 + 0 kg / cm ) LPS 0.05 ± 0.04MPa (0.5 ± 0.4kg / cm ) 08 ± C Short 0 ± 5 C Open Other than those listed at left

132 A Check of indoor fan motor Indoor fan does not operate. Turn OFF the power supply. Check connector CN visually. No Are lead wires connected? Yes Is soldered point normal? No Reconnect the lead wires. Yes Resolder it. Disconnect lead wires from connector CN on indoor electronic control P.C. board. Measure resistance between lead wires No. and No. and then No. and No.. Is resistance 0 (short circuit) or (open circuit)? Yes ( 0 or ) Repair the indoor fan motor. No (others) Replace the indoor electronic control P.C. board. B Check of remote controller and receiver P.C. board Indoor unit operates by pressing the EMERGENCY OPERATION switch, but does not operate with the remote controller. wcheck the remote controller is exclusive for this air conditioner. wreplace the receiver P.C. board together with the indoor control P.C. board. Switch on the remote controller. Is LCD display on the remote controller visible? Yes Remove batteries and then set them back. Check if the unit operates with the remote controller. No (not clear) Replace the batteries.(see page.) Does the unit operate with the remote controller? No Turn on a radio to AM and press switch on the remote controller. Yes OK Is noise heard from radio? No Replace the remote controller. Yes Are there any fluorescent lights of inverter or rapidstart type within the range of m? Yes Reinstall the unit away from lights. Attach a filter on receiving part. No Replace the indoor electronic control P.C. board with receiver.

133 C Check of indoor electronic control P.C. board The unit doesn t operate with the remote controller. Also, the POWER MONITOR lamp doesn t light up by pressing the EMERGENCY OPERATION switch. Check both parts side and pattern side of indoor electronic control P.C. board visually. Turn OFF the power supply. Remove indoor fan motor connector CN and vane motor connector CN5 from the ELECTRONIC CONTROL P.C. board and turn on the power supply. The unit doesn t operate with the remote controller. Also, the Operation Indicator lamp doesn t light up by pressing the EMERGENCY OPERATION switch. Yes No Replace the vane motor.. Replace the fuse. Yes Is winding resistance of vane motor 0 "? Be sure to check both resistance. Is winding resistance of fan motor 0 "? Yes No No Yes Is fuse(f) blown? Be sure to check both fuse and varistor in any case. Is varistor(nr) burnt? Yes No No Trouble of the indoor electronic control P.C. board. Replace the fan motor. Replace the varistor. D Check of outdoor unit <MU07/09/RV> Compressor and / or outdoor fan does not operate. Start Check the voltage to terminal block of outdoor unit. Is there AC0~40V to terminal block between LN. Yes No Check the outdoor power supply, power supply cord and connection. Turn on the indoor power supply. Press the EMERGENCY OPERATION switch. minute time delay works. Test run operation operates for 0 minutes. Check the voltage to terminal block of outdoor unit. Is there V DC to terminal block between. Yes No Check the voltage to terminal block of indoor unit. Is there V DC to terminal block between? No Yes Check the continuity of indoor and outdoor unit connection. Check the indoor electronic control P.C. board. Outdoor unit does not operate. Yes Is the connection of wiring in outdoor unit correct? No Make the connection of wiring in outdoor unit correct. Yes Check the 5C contactor, outdoor fan motor and compressor. No Does outdoor unit operate? Yes Ok Compressor does not operate. Is the connection of wiring from terminal block to compressor correct? No Make the connection of wiring from terminal block to compressor correct. Yes Check the compressor. See page 4. No Does outdoor unit operate? Yes Ok Replace the fuse "F"(A). Outdoor fan motor does not operate. Is the connection of wiring from terminal block to outdoor fan motor correct? No Yes Yes Is fuse "F"(A) blown? No Check the outdoor fan motor. See page and. Make the connection of wiring from terminal block to outdoor fan motor correct. No Does outdoor unit operate? Yes Ok

134 D Check of outdoor unit <MUH07/09/RV> Compressor and / or outdoor fan does not operate. Start Check the voltage to terminal block of outdoor unit. Is there AC0~40V to terminal block between LN? Yes No Check the outdoor power supply, power supply cord and connection. Check the compressor and outdoor fan motor. See page. No. Outdoor unit does not operate. Is the switch(sw) on the indoor electronic control P.C. board set to MUH type? No Change the switch (SW) on the indoor electronic control P.C. board to MUH type. See page 9. Yes Check the DEICER P.C. board. See page 45. Is it normal? No. Does outdoor unit operate? Replace the compressor. Yes Yes Ok Ok No Compressor does not operate. Is the connection of wiring from terminal block to compressor correct? No Yes Check the compressor. See page. Is it normal? Yes Check the DEICER P.C. board. See page 45. Make the connection of wiring from terminal block to compressor correct. No. Does outdoor unit operate? Replace the outdoor fan motor. Yes Ok Outdoor fan motor does not operate. D Check of outdoor unit Is the connection of wiring from terminal block to outdoor fan motor correct? No Make the connection of wiring from terminal block to outdoor fan motor correct. Compressor and outdoor fan do not operate.(only indoor fan operates.) Start <MUX0/8/4RV> Yes No Check the outdoor fan motor. See page. Is it normal? No. Does outdoor unit operate? Yes Yes Check the DEICER P.C. board. See page 45. Ok Press EMERGENCY ON/OFF button. minute time delay works. Test mode operates for 0 minutes. Check voltage to terminal block of outdoor unit. Is there 040V AC to terminal block between L N? No Yes Check the connection of indoor and outdoor and the power supply. Check voltage to terminal block of indoor unit. Is there DCV to terminal block between? No Yes Check the fuse. Is it cut? Yes Check continuity of indoor and outdoor unit connection. No Check the outdoor fan motor, compressor, relay, and wiring. Replace the fuse. 4

135 E How to check miswiring and serial signal error (when outdoor unit does not work) Make them sure. Yes Start Turn OFF the power supply(indoor/outdoor unit). Is the outdoor unit "MUH or MXZ" type? Yes Turn ON the power supply(indoor/outdoorunit). Press once EMERGENCY OPERATION switch. min. later, what selfcheck result is displayed on Operation Indicator lamp on indoor unit? w Is this miswiring, poor contact, or wire disconnection? No Miswiring is indicated. (0.5sec. ON, 0.5sec. OFF) w Set the switch(sw) on indoor electronic control P.C. board to MU type, when the outdoor unit is MU type. If the setting is MUH type, the unit does not work. w Short circuit of JPG and JPS on the indoor electronic control P.C. board enables self check to be displayed in seconds. Serial signal error is indicated. (0.5sec. ON,.5sec. OFF) Set the switch(sw) on the indoor electronic control P.C. board to MU& MUX type. (See page.) w Yes Does the unit operate? No Follow the chart on page. Ok No. Turn OFF the power supply(indoor/outdoor unit) and disconnect inout connecting wire on indoor side.. Shortcircuit between indoor terminal block N and.. Turn ON the power supply(indoor unit) and press once EMERGENCY OPERATION switch. Is there 0V DC between both ends of R on indoor electronic control P.C. board? ( By tester, the stylus is between 0 ~ 0V. ) Yes Turn OFF the power supply(indoor unit). Connect ON inout connecting wire. No Replace the indoor electronic control P.C. board. Turn ON the power supply(outdoor unit). Is the outdoor unit "MUH" type? Yes Is there 040V AC between outdoor terminal block LN? Yes No No Refer to T Check of miswiring or mispiping.(see page 4) Check the outdoor power supply, power supply cord and connection. Is there 5V DC between J8 J9 +? (See page 4.) Yes Turn ON the power supply(indoor unit). No Replace the DEICER P.C. board. During EMERGENCY OPERATION, is there 0V DC between both ends of R60? (See page 4.) (By tester, the stylus is between 5 ~0V) Yes No Make the wiring between CN70 on the DEICER P.C. board and outdoor terminal block correct. (See page 4.) Replace the DEICER P.C. board. 5

136 F Simple check methods for inverter/ compressor <MXZ8/RV> Start Disconnect the compressor lead wire. F Check of open phase Balanced H Check of compressor Unbalanced GCheck the resistance of the transistor module. 0 ' Replace the transistor module and outdoor controll P.C. board in a set. Infinite Replace the outdoor controll P.C. board. G Check of open phase <MXZ8/RV> Be sure to use the analog tester for measurement. With the lead wire disconnected, activate the inverter and check the balance of voltage between terminals. MXZ8RV Operation mode Operational frequency (Hz) Output voltage (V) COOL 58 0 HEAT MXZRV Operation mode Operational frequency (Hz) Output voltage (V) COOL 58 0 HEAT Tester indication BLKWHT ACV 00 BLKRED ACV 00 WHTRED ACV 00 Normal (balanced) <Operation method> Perform the test run in the heating mode by using the emergency run switch on the indoor unit. <Measure point> Measure the AC voltages at the following three points on the transistor module BLK WHT BLK RED WHT RED <Judgment> Balanced : Normal Unbalanced : Faulty (Open phase) Shut off by overcurrent : Faulty (Short) BLKWHT ACV 00 BLKRED ACV 00 WHTRED ACV 00 Faulty (unbalanced) NOTE : After the outdoor fan starts running, wait for one minute or more before measuring the voltages. NOTE : The output voltage values in the above table have the tolerance of ± 0%. H Check of resistance (transistor module) <MXZ8/RV> Disconnect the lead wires and check the resistance of terminals at the transistor module. <Measure points> Measure the AC voltage at the following six points on the transistor module. BLK WHT, WHT BLK BLK RED, RED BLK WHT RED, RED WHT X <Judgment> Infinite (Ω) : Normal Zero to dozens (Ω) : Faulty (Short) Tester indication X Normal (Infinite) Faulty (Zero to dozens of ohms) 6

137 I Check of compressor <MXZ8/RV> Start ICheck the compressor winding on page 8. Short or open Replace the compressor Normal J Check of compressor operation on page 8. Stop J Check of compressor operation on page 8. 0 sec. or less Replace compressor Nomal Continuous more than 0 sec. Check of refrigerant circuit. J Check of compressor winding <MXZ8/RV> Disconnect the lead wires and check the resistance between the compressor terminals. <Measuring points> Measure the AC voltages at the following three points on the transistor module. Tester indication BLK WHT BLK RED X WHT RED <Judgment>.05 ~.9Ω (MXZ8RV), 0.47 ~ 0.58Ω (MXZRV) at 0 C ~ 40 C of winding temperature. X Zero (Ω) : Faulty (Short) Infinite (Ω) : Faulty (Open) NOTE : Be sure to zero the tester before measurement. NOTE : The winding resistance is.ω(mxz8rv),0.54ω(mxzrv) X at 0 C for each phase. Normal (One to dozens of ohms) Faulty (Zero ohms or short) Faulty (Infinite or open) K Check of compressor operation <MXZ8/RV> Connect the compressor, activate the inverter, and count time until the inverter stops due to overcurrent. <Operating method> Perform the test run in the cooling or heating mode by using the emergency operation switch on the indoor unit. <Measuring point> Count time from when the outdoor fan starts up until the inverter stops due to overcurrent. <Judgment> Inverter stops in 0 to 0 seconds : Faulty (Short) Inverter stops in 0 to 60 seconds : Faulty (Compressor lock) Inverter stops in 60 seconds to 5 minutes : Faulty (Refrigerant circuit defective) Inverter operates for 5 minutes or more : Normal 0 sec. 0sec. Outdoor fan startup Faulty (Compressor lock. etc.) Faulty (Compressor sfort or luyershort) 60sec. Faulty (Refrigerant circuit defective,etc.) 5 min. Normal 7

138 L Check of outdoor thermistor <MXZ8/RV> (Simple check method for main components) Outdoor thermistor abnormality MXZ8RV:Disconnect the connectors CN64, CN66 and CN68,CN68,CN68 from the outdoor controller. MXZRV:Disconnect the connectors CN66, CN66 and CN66 from the outdoor controller. (Check the characteristic of thermistors.) Defrost thermistor Discharge temperature thermistor Measure the resistance between pin and pin4 at CN64(MXZ8RV) pin and pin at CN66(MXZRV) Measure the resistance between pin and pin4 at CN66(MXZ8RV) pin and pin at CN66(MXZRV). Measure the resistance between pin and pin, Gas pipe and 4, 5 and 6, and temperature at CN66 respectively (MXZ8RV) thermistor pin and pin at CN66 (MXZRV). Suction Evaporation temperature thermistors Measure the resistance between pins 5 and 6 at CN66, and pins 7 and 8 at CN66 respectively (MXZ8RV) pin and pin at CN66 (MXZRV). Fin Measure the temperature resistance thermistor between pin and pin at CN66 (MXZ8RV) pin and pin at CN66 (MXZRV). As per the Characteristic Chart? (See page 44, 46.) No Thermistor damaged No As per the Characteristic Chart? (See page 44, 46.) As per the Characteristic Chart? Yes (See page 44, 46.) No Thermistor damaged No As per the Characteristic Chart? (See page 44, 46.) Yes Yes Yes Connect the connections CN66, CN68, CN68, CN68 CN64 (MXZ8RV),CN66, CN66, and CN66 (MXZRV). Disconnect the compressor lead wire. Turn on POWER to the indoor and outdoor unit Measure the voltage between terminals on the outdoor controller board. Discharge thermistor Defrost Thermistor Is there voltage of.5 to 4.0V DC across R64(MXZ8RV), R64(MXZRV)? Yes Yes Is there voltage of 0. to 0.6VDC across R685(MXZ8RV), R65(MXZRV) at ; to 6; of outside temperature? No Outdoor controller board defective No Evaporator/ suction temperature thermistor. No Is there voltage of.5 to 4.0V DC between terminals of R68 and R68? Fin temperature thermistor. Is there voltage of 0.8 to.5v DC between terminals of R66? Gas pipe temperature thermistor No Is there voltage of Yes.5 to 4.0V DC between terminals of R68 and R684? Disconnect the connector (Poor connection.) Yes M Check of reversing valve coil <MXZ8/RV> Cooling operation works when heating is expected. First, measure the resistance of the reversing valve coil to check the integrity. If connector CN6(MXZ8RV), CN9(MXZRV) is not connected or the reversing valve coil is open, voltage occurs between terminals even when the control is OFF. Disconnect the lead wire between compressor and IPM board. Turn on power to the indoor unit and the outdoor unit, and press the emergency switch for heating operation. MXZ8RV Three minutes after poweron. Check the voltage between pin and pin at CN6 on the electronic control P.C. board. Is there voltage of 0 to 40V AC? MXZRV Three minutes after poweron. Check the voltage between pin and pin at CN9 on the noise filter board. Is there voltage of 0 to 40V AC? No Yes Yes No Outdoor controller board or noise electronic control P.C. board detective. Reversing valve coil lead wire defective. Poor contact of connector. Reversing valve coil damaged. Outdoor controller board or noise filter board detective. 8

139 N Check of outdoor fan motor The outdoor fan motor remains stopped. <MXZ8RV> Disconnect CN6 TAB9 and outdoor electronic control P.C.board. Disconnect the connector between the compressor and the transistor module. <MXZRV> Disconnect the relay connector. Disconnect t he connector (lead wire) between the compressor and the IPM board. <MXZ8/RV> Turn on power to the indoor unit and the outdoor unit, the press the emergency switch for cooling or heating operation. Three minutes after poweron, check the voltage between terminals at the relay connector. First, measure the resistance of the 4way valve coil to check the integrity. No <MXZ8RV> Is there voltage of 0 40V AC between CN6 and or and 5? <MXZRV> Is there voltage of 0 40V AC between pin and any of pin, 4, 5, and 6? Yes Outdoor control board or outdoor relay board defective. Outdoor fan motor lead wire defective. Poor contact for connector Outdoor fan motor damaged. O Check of solenoid coil <Only MXZRV> Poor heating/cooling. The compressor stops frequently. First measure the resistance of the reversing valve coil to check the integrity. If connector CN9 is not connected or the sorenoid coil is open, voltage occurs between terminals even when the control is OFF. Disconnect the lead wire between compressor and IPM board. Turn on power to the indoor unit and the outdoor unit, and press the emergency switch for heating operation. Three minutes after poweron, check the v oltage between pin and pin4 or CN9 on the noise filter board. Is there voltage of 0 to 40V AC? No Yes Outdoor control board or outdoor relay board defective. Sorenoid coil lead wire defective. Poor contact of connector Sorenoid coil damaged. P Check of power supply <MXZ8/RV> The inverter does not operate. Turn on power to the outdoor unit. Is there voltage of 0 to 40V AC the power terminal Yes block? No Check the powerline Is there voltage of 0 to 40V AC across the the smoothing capacitor? Yes Activate the indoor unit emergency operation. No Main electric parts defective in the circuit. Three minutes later does the serial signal error occur? No Refer to the serial signal check method. Yes Outdoor or indoor controller board defective. Q Check of rush current control circuit <MXZ8/RV> The outdoor unit does not operate at all or stops in short time due to over current. Is the current limiting resistor disconnected? (It has 0 ', if normal.) Yes Replace the current limiting resistor. No Turn on power to the outdoor unit. Does LED light up? Yes No No Is the rush current liming relay functioning properly? (It should close one second after the outdoor unit poweron, if normal.) Outdoor controller board or rush current liming resistor defective. Main components in the circuit or outdoor controller board defective. Yes Other main components in the circuit or compressor defective. Check other main circuit parts at the same time when you replace the current limiting resistor. 9

140 R Check of hi/ low pressure switch and compressor thermostat circuits No heating/cooling Three minutes after the unit stops, check that the high and low pressure switch open and close properly. After the unit stops, remove the soundproof material around the compressor. 60 minutes after that, check that the compressor thermostat opens and closed properly. Open status No Yes High/low pressure switch, compressor or refrigerant circuit defective. Turn on power to the outdoor unit and press the emergency switch for cooling or heating operation. Right after compressor startup, does the LED indication appear to show the lowspeedoperation due to high/low switch protection? Yes Outdoor controller board defective No Causes Gas undercharged Gas overcharged Liner expansion valve Ball valve Indoor air filter clogged Pipe length too long Short cycle of outdoor air flow Outdoor heat exchanger (dust adherence) <MXZ8/RV> HPS LPS (MXZ) Compressor thermistor S Check of liner expansion valve (LEV) The outdoor control system stops due to abnormality. <MXZ8RV> Turn OFF the power supply and make sure that LEDs on outdoor electronic control P.C. board turn OFF. Then turn ON power supply. <MXZRV> Turn off the breaker and shortcircuit pin and pin at CN605 on the outdoor control board. CN605 Shortcircuit Operation status Indoor unit:normal Outdoor unit:compressor and outdoor fan stop running and LEV closes repeatedly. Turn on the breaker and operate the air conditioner with the remote controller. <MXZ8/RV> LEV operates for the first 0 seconds after power supply is turned ON. While LEV is operating, check that there is V DC pulse amplitude between both ends oh LEV diode. Repeat this for 4 diodes each in unit A and B. When no pulse amplitude, the outdoor electronic control P.C. board is defective. When checking, LEV connectors must be connected. About 0 seconds after startup, does LEV click? No Yes Normal Disconnect the LEV relay connector and check the voltage at the following points between terminals on the controller board side. Does the voltage fluctuate between 7.5 and 8.5V DC at any points? No Outdoor controller board defective Yes LEV defective Measuring point (+) ( ) REDWHT REDBLU REDORN REDYLW T Check of miswiring or mispiping <Only MXZ8RV> Incorrect connection of indoor units results in no cooling/heating. In the all unit operation, however, the system seems to operate normally even if wires or pipes are connected incorrectly. Therefore, use the singleunit operation, not the allunit operation, to check miswiring or mispiping. <Check of miswiring or mispiping> The following symptoms appears if wires or pipes are wrongly connected. In the singleunit operation in HEAT mode, the compressor stops due to high pressure protection or it operates at the lowest frequency at the normal working temperature, causing no heating. In the singleunit operation in COOL mode, the indoor unit blows out air but it is not cooling, causing no cooling. The heat exchanger freezes in nonoperating unit(s). <EFFECT> In the heating operation, the compressor stops and restarts operation too frequency due to high pressure protection, and finally gets damaged. In the cooling operation, the compressor operates with liquid back, and finally gets damaged. 40

141 T Check of miswiring or mispiping <Only MXZRV> Checking the miswiring and serial signal error (Only MXZRV) <The outdoor unit does not operate.> Single or repeated blinks appears on the operation indicator (on the lefthand side). Using the light emitting diode LED on the indoor controller board (See the indoor unit service manual), locate the defect in the following procedure. After checking the indoor unit, check the outdoor unit as follows. For the indoor unit inspection, refer to the appropriate service manual. Measure the voltage between the appropriate connector terminals on the outdoor controller board depending on the indoor unit indicating the serial signal error. When the indoor unit for Room A is indicating the serial signal error : Is there voltage of 5 to 0 V DC between pin (+) and pin () at connector CN60? When the indoor unit for Room B is indicating the serial signal error : Is there voltage of 5 to 0 DC between pin (+) and pin () at connector CN60? When the indoor unit for Room C is indicating the serial signal error : Is there voltage of 5 to 0 DC between pin (+) and pin () at connector CN60? When the indoor unit for Room D is indicating the serial signal error : Is there voltage of 5 to 0 DC between pin (+) and pin () at connector CN604? Yes Disconnect the short circuit between tab terminals as before. Is the LED lighting on the outdoor controller board? Yes No No lighting Outdoor controller board Check the indoor/outdoor connecting wire, the unit signal wire, and the outdoor terminal block. Yes Is there V DC between pin and pin at connector CN80 on the outdoor controller board? No Reactor Diode stack Power factor capacitor Smoothing capacitor Rush current control circuit IPM board }faulty U The other cases <MXZ8/RV> In the case that the indoor fan and outdoor fan operate but the compressor does not operate,it causes that the high pressure switch can be operated once. First of all,check the high pressure switch can be shorted, turn OFF the power and turn ON again minute later. 4

142 TEST POINT DIAGRAM AND VOLTAGE MSC07RV E MSC09RV E MSCRV E Indoor electronic control P.C. board Varistor (NR) Fuse 50V AC.5A } Indoor fan motor 0~40V AC R } Power supply input 040V AC V DC { + Room temperature thermistor (RT) Timer short mode point Indoor coil thermistor (RT) Emergency operation switch + } 5V DC Indoor coil thermistor (RT) Room temperature thermistor (RT) 40 SW (See page.) sets the Auto restart function ON/ OFF. switches over MU&MUX type/ MUH&MXZ type. Resistance (k') Temperature (;)

143 MUH07RV E MUH09RV E MUHRV E Outdoor deicer P.C. board Outdoor fan motor 040V AC Reversing valve coil 040V AC R60 5~0V DC + Power supply input 040V AC Defrost thermistor(rt6) } } } } CN70 } Fuse A/50V Defrost interval time short pin + J9 J8} 5V DC + } V DC + } 5C V DC Jumper wire for change in defrost setting (JPC, JPE) (See page 8.) 4

144 MXZ8RV E Outdoor unit electronic control P.C. board ~V DC ~V DC V DC Power supply Electron expansion valve V DC pulse shape Highpressure switch short (Normal) Evaporation temperature thermistor.5~4v DC Suction temperature thermistor.5~4v DC Room A coil thermistor.5~4v DC Room B coil thermistor.5~4v DC Discharge temperature thermistor 0.~0.6V DC Power supply 5V DC 0 / 40V Jumper wire Short : 0V Open : 40V LED Room B serial signal 0~4V DC Room A serial signal 0~4V DC Power supply input 0V DC Fuse A Fin temperature thermistor (RT 6) Relay (X64) Outdoor fan Hi 040V AC Reversing valve 040V AC Measure the voltage under the condition of the connector pluging. Fuse.5A Outdoor fan, Reversing valve power supply input 040V AC 700 Discharge temperature thermistor Fin temperature thermistor Gas pipe temperature thermistor Evaporation temperature thermistor Suction temperature thermistor Defrost temperature thermistor Resistance (') Temperature (;) Resistance (') Temperature (;) Resistance (') Temperature (;)

145 MXZ8RV E Relay P.C. board Short : Normal Open : Abnormal { 040V AC { Fuse.5A 45

146 TEST POINT DIAGRAM AND VOLTAGE MXZRV E Electronic control P.C.board Fin temperature thermistor Gas pipe temperature thermistor Evaporation temperature thermistor Suction temperature thermistor Defrost temperature thermistor Defrost temperature thermistor.5~4.0v DC Suction temperature thermistor 0.~0.6V DC Evaporation temperature thermistor.5~4.0v DC Discharge temperature thermistor.5~4.0v DC Fin temperature thermistor.0~4.0v DC Resistance (') Reversing valve V DC Solenoid valve V DC Temperature(;) Crank case heater V DC Outdoor fan ON V DC Temperature(;) Outdoor fan Lo V DC Resistance (') Outdoor fan Me V DC Serial signal Room D 5~0V DC { { Serial signal Room C 5~0V DC { Serial signal Room B 5~0V DC { Serial signal Room A 5~0V DC V DC { { Relay V DC 5V DC { 0~5V DC + LED monitor indication Room D Room C Room B Room A Gas pipe temperature thermistor.5~4.0v DC { { Compressor inner thermo Low pressure switch High pressure switch { Liner expansion valve(lev) V DC pulse wave Discharge temperature thermistor Resistance (') Temperature(;) 46

147 Noise filter P.C.board OUTDOOR FAN 0V40V AC { { 0V40V AC OUTPUT CRANK CASE HEATER 0V40V AC REVERSING VALVE 0V40V AC WAY VALVE 0V40V AC { { { { 0V40V AC INPUT I.P.M. P.C.board V DC { V DC { { 0V DC Relay P.C.board V DC { High pressure switch { V DC { { Short 47

148 4 DISASSEMBLY INSTRUCTIONS <"Terminal with lock mechanism" Detaching points> In case of terminal with lock mechanism detach the terminal as shown below. () () Slide the sleeve. Pull the terminal while pushing the locking lever. Hold the sleeve, and pull out the terminal slowly. 4. MSC07RV E MSC09RV E MSCRV INDOOR UNIT OPERATING PROCEDURE. Removing the front panel () Remove the screws caps of the front panel. Remove the screws. () Pull the panel down to your side slightly and unhook the catches at the top. E Photo PHOTOS Front panel Screws. Removing the electronic control P.C. board and the display P.C. board. () Remove the front panel. (Refer to ) () Remove the screw of the electrical cover. Remove the electrical cover. () Remove the V.A. clamp. Remove the screw of the terminal block. (4) Remove the cord clamp. (5) Remove the screw of the ground wire. (6) Disconnect all the connectors and all the lead wires on the electronic control P.C. board. (7) Remove the electronic control P.C. board and the display P.C. board. Photo Ground Fan motor connector V.A.clamp Room temperature thermistor connector Indoor electronic control P.C.board Vane motor connector Terminal block cover screw Cord clamp 48

149 OPERATING PROCEDURE. Removing the electrical box () Remove the front panel. (Refer to ) () Remove the electrical cover. () Disconnect the connector of the indoor coil thermistor. (4) Disconnect the motor connector (CN) and the vane motor connector (CN5) on the electronic control P.C. board. (5) Remove the screw fixing the electrical box, remove the electrical box. Photo PHOTOS Electrical box screw 4. Removing the vane motor () Remove the front panel. () Remove the screws (both upper and lower) of the vane motor, disconnect the connector. () Remove the vane motor. Photo 4 Vane motor screws Drain hose Vane motor 5. Removing the line flow fan and the indoor fan motor () Remove the front panel. (Refer to ) () Remove the electrical box. () Pull out the drain hose from the nozzle assembly, remove the nozzle assembly. (4) Remove the screws fixing the fan motor. (5) Remove the screws fixing the left side of the heat exchanger. (6) Lifting the left side of the heat exchanger. (7) Remove the hexagon socket set screws. (8) Remove the fan motor, and remove the line flow fan. Photo 5 The screws fixing the left side of the heat exchanger Indoor coil thermistor 49 Fan motor screws

150 4. MU07RV E MU09RV E MURV OUTDOOR UNIT OPERATING PROCEDURE E PHOTOS. Removing the cabinet () Remove the screws for the top panel. () Remove the screw for the service panel. () Remove the screws for the cabinet. (4) Remove the screws for the front panel and motor support. (5) Remove the service panel, and remove the screw from the insides. (6) Remove the top panel. (7) Remove the cabinet. Photo Screws for front panel and motor support Photo Screws for cabinet Screws for cabinet Screw for service panel Screw for top panel Photo Service panel Screw for top panel Screws for cabinet. Removing the electrical parts () Remove the service panel and the cabinet.(refer to ) () Remove the following parts. Compressor capacitor (C) Outdoor fan capacitor (C) Terminal block Photo 4 Relay panel Compressor capacitor Screws Contractor Terminal block Screw Outdoor fan capacitor 50

151 OPERATING PROCEDURE. Removing the propeller fan and the outdoor fan motor () Remove the cabinet. (Refer to.) () Remove the propeller fan nut. () Remove the propeller fan. NOTE : Loose the propeller fan in the rotating direction for removal. When attaching the propeller fan, align the mark on the propeller fan and the motor shaft cut section. Set the propeller fan in position by using the cut on the shaft and the mark on the propeller fan. (4) Remove lead clamps and disconnect the outdoor fan motor connector. (5) Remove screws fixing the fan motor. (6) Remove the outdoor fan motor. Photo 5 Propeller fan PHOTOS Set screws for outdoor fan motor Hook Lead clamps Outdoor fan motor connector Propeller fan nut Outdoor fan motor 4. Removing the compressor () Remove the cabinet. (Refer to ) () Remove the relay panel. () Remove the soundproof felt. (4) Remove the terminal cover on the compressor. (5) Disconnect lead wires from the glass terminal of the compressor. (6) Release gas from the refrigerant circuit. (7) Disconnect the welded part of the discharge pipe. (8) Disconnect the welded part of the suction pipe. (9) Remove nuts fixing the compressor. (0) Remove the compressor. NOTE Before using a burner, purge gas from the pipes until the pressure gauge shows 0 kg/cm. Use the burner under the condition that gas can be released even when the inner pressure rises by heat. Photo 6 Glass terminal Compressor Discharge pipe Suction pipe Compressor set nuts Terminal cover 5

152 4. MUH07RV E MUH09RV E MUHRV OUTDOOR UNIT E OPERATING PROCEDURE. Removing the cabinet () Remove the screws for the top panel. () Remove the screw for the service panel. () Remove the screws for the cabinet. (4) Remove the screws for the front panel and motor support. (5) Remove the service panel, and remove the screw from the insides. (6) Remove the top panel. (7) Remove the cabinet. Photo PHOTOS Screws for front panel and motor support Photo Screw for service panel Screw for top panel Screws for cabinet Photo Screws for cabinet Service panel Screw for top panel Screws for cabinet. Removing the deicer P.C. board () Remove the service panel and the cabinet. () Disconnect all the connectors and the terminals on the deicer P.C. board. () Remove the deicer P.C. board. Photo 4 Deicer P.C. board Screws Screw Relay panel Terminal block 5

153 OPERATING PROCEDURE. Removing the propeller fan and the outdoor fan motor () Remove the cabinet. (Refer to.) () Remove the propeller fan nut. () Remove the propeller fan. NOTE : Loose the propeller fan in the rotating direction for removal. When attaching the propeller fan, align the mark on the propeller fan and the motor shaft cut section. Set the propeller fan in position by using the cut on the shaft and the mark on the propeller fan. (4) Remove lead clamps and disconnect the outdoor fan motor connector. (5) Remove screws fixing the fan motor. (6) Remove the outdoor fan motor. Photo 5 Propeller fan Set screws for outdoor fan motor PHOTOS Hook Lead clamps Outdoor fan motor connector Propeller fan nut Outdoor fan motor 4. Removing the compressor () Remove the cabinet. (Refer to ) () Remove the relay panel. () Remove the soundproof felt. (4) Remove the terminal cover on the compressor. (5) Disconnect lead wires from the glass terminal of the compressor. (6) Release gas from the refrigerant circuit. (7) Disconnect the welded part of the discharge pipe. (8) Disconnect the welded part of the suction pipe. (9) Remove nuts fixing the compressor. (0) Remove the compressor. NOTE Before using a burner, purge gas from the pipes until the pressure gauge shows 0 kg/cm. Use the burner under the condition that gas can be released even when the inner pressure rises by heat. Photo 6 Glass terminal Compressor Discharge pipe Suction pipe Compressor set nuts Terminal cover 5

154 44 MUX0RV E OUTDOOR UNIT OPERATING PROCEDURE. Removing the cabinet. () Remove the screws fixing the service panel. () Remove the screw fixing the side panel. () Remove the service panel. (4) Remove the side panel. (5) Remove the cabinet. Photo Screws PHOTOS Photo Cabinet Service panel Screws. Removing the propeller. () Remove the cabinet. () Remove the propeller nut. () Remove the propeller. Note : Loosen the propeller in the rotating direction for removal. When setting the propeller, align the motorshaft cut section. Photo Propeller Propeller. Removing the outdoor fan motor. () Remove the cabinet. (Refer to.) () Remove the propeller.(refer to.) () Remove the lead clamps and disconnect the outdoor fan motor connector. (4) Remove outdoor fan motor set screws. (5) Remove the outdoor fan motor. Photo 4 Outdoor fan motor Outdoor fan motor set screws 54

155 OPERATING PROCEDURE 4. Removing the compressor. () Remove the cabinet. (Refer to.) () Remove the terminal cover. () Pull out lead from the compressor terminal, then remove the thermal protector. (4) Remove the suction pipe welded section and discharge pipe welded section using a burner. Pull out when the welding melts. (5) Remove the sound proof felt. (6) Remove the compressor set nuts. (7) Remove the compressor. Note : Before using the welder, confirm that the pressure gauge is 0 kg/cm. When using the welder, leave the service port open and release the pressure to avoid expansion by heat. Photo 5 Discharge pipe PHOTOS Suction pipe Sound proof felt 55

156 45 MUX8RV E OUTDOOR UNIT OPERATING PROCEDURE PHOTOS.Removing the cabinet. () Remove the screws fixing the service panel. () Remove the screw fixing the side panel. () Remove the service panel. (4) Remove the side panel. (5) Remove the cabinet. Photo Side panel Cabinet Service panel Side panel set screw Service panel set screw. Removing the propeller. () Remove the cabinet. () Remove the propeller nut. () Remove the propeller. Note: Loosen the propeller in the rotating direction for removal. When setting the propeller, align the motorshaft cut section. Photo Propeller Propeller nut.removing the outdoor fan motor. () Remove the cabinet.(refer to.) () Remove the propeller.(refer to.) () Remove the lead clamps and disconnect the outdoor fan motor connector. (4) Remove outdoor fan motor set screws. (5) Remove the outdoor fan motor. Photo Fan motor Outdoor fan motor set screws 56

157 OPERATING PROCEDURE 4. Removing the compressor. () Remove the cabinet.(refer to.) () Remove the terminal cover. () Pull out lead from the compressor terminal,then remove the terminal overcurrent relay. (4) Remove the suction pipe welded section and discharge pipe welded section using a burner. Pull out when the welding melts. (5) Remove the sound proof felt. (6) Remove the compressor set nuts. (7) Remove the compressor. NOTE: Before using the welder, confirm that the pressure gauge is 0 Kg/cm. When using the welder, leave the service port open and release the pressure to avoid expansion by heat. Photo 4 PHOTOS Suction pipe Discharge pipe Sound proof felt 5. Removing the compressor. () Remove the cabinet.(refer to.) () Remove the terminal cover. () Pull out lead from the compressor terminal,then remove the terminal overcurrent relay. (4) Remove the screws fixing the back panel. (5) Remove the suction pipe welded section and discharge pipe welded section using a burner. Pull out when the welding melts. (6) Remove the sound proof felt. (7) Remove the compressor set nuts. (8) Remove the compressor. 57

158 46 MUX4RV E OUTDOOR UNIT OPERATING PROCEDURE.Removing the cabinet. () Remove the screws fixing the service panel. () Remove the screw fixing the top panel. () Remove the service panel. (4) Remove the top panel. (5) Remove the screws fixing the front panel. (6) Remove the front panel. (7) Remove the screws fixing the outer nozzle. (8) Remove the outer nozzle. Photo Screws PHOTOS Top panel Service panel set screws Front panel Photo Top panel set screws Rear panel Rear panel set screws Photo Screws Screws 58

159 OPERATING PROCEDURE PHOTOS. Removing the relay panel. () Remove the cabinet. (Refer to ) () Disconnect the following connectors.. Compressor (MC,MC). Outdoor fan motor. Solenoid coil (R,R,R,R4,RA,RB) Photo 4 Solenoid coil connector (RA,RB) Solenoid coil connector (R,R,R,R4) Compressor connector (MC,MC) Screws. Removing the propeller. () Remove the cabinet. () Remove the propeller nut. () Remove the propeller. Note : Loosen the propeller in the rotating direction for removal. When setting the propeller, align the motorshaft cut section. Photo 5 Propeller Propeller nut 4. Removing the outdoor fan motor. () Remove the cabinet. (Refer to ) () Remove the propeller. (Refer to ) () Disconnect the connector remove the clamp of outdoor fan motor lead wire. (4) Remove the screws fixing the outdoor fan motor. Photo 6 Clamp Outdoor fan motor Outdoor fan motor set screws 59

160 OPERATING PROCEDURE 5. Removing the compressor. (A,B) () Remove the cabinet. (Refer to ) () Remove the relay panel. (Refer to ) () Remove the terminal cover. (4) Pull out lead from the compressor. (5) Remove the suction pipe welded section and discharge pipe welded section using a burner. Pull out when the welding melts. (6) Remove the sound proof felt. (7) Remove the compressor set nuts. (8) Remove the compressor. Photo 7 PHOTOS Terminal cover Sound proof felt Suction pipe Discharge pipe 6. Removing the compressor. (C,D) () Remove the cabinet. (Refer to ) () Remove the relay panel. (Refer to ) () Remove the screws fixing rear panel. (Refer to photo ) (4) Remove the rear panel. (5) Remove the terminal cover. (6) Pull out lead from the compressor. (7) Remove the suction pipe welded section and discharge pipe welded section using a burner. Pull out when the welding melts. (8) Remove the sound proof felt. (9) Remove the compressor set nuts. (0) Remove the compressor. 60

161 47 MXZ8RV E OUTDOOR UNIT OPERATING PROCEDURE Removing the compressor () Remove the top panel. () Remove the service panel and release the gas. () Remove the rear panel, and front panel. (4) Disconnect the compressor linking connector. (See Photo.) (5) Disconnect the following connectors from the outdoor electronic control P.C. board. CN6, CN6, TAB9,CN64, CN67, CN68, CN68, CN76, CN77,CN66,CN68. (6) Disconnect the reactor lead wires from the terminal +++ of the diode stack (DS6) and from the terminal +++ of the capacitor (C67). (See Photo.) Note: When pulling the wire, push the locking lever of the terminal. (7) Remove the inverter assembly. (8) Remove the band that fixes the discharge pipe muffler. (See Photo 4.) (9) Remove the propeller fan. (0) Remove the separator and support. () Remove the reactor. () Remove the terminal cover to disconnect the lead wires from the compressor terminals. () Detach the welded section of the compressor suction pipe and discharge pipe. (See Photo 4.) (4) Remove the compressor nuts to remove the compressor. Photo Front panel Photo PHOTOS Separator support Top panel Separator Rear panel Service panel Connect cover Outdoor electronic control P.C. board Propeller Reactor (in housing) Compressor linking connector Photo Outdoor electric control P.C board Photo 4 Dischargepipe muffler fixing band Discharge pipe welded section Terminal for diode stack (DS 67) Terminal for capacity(c 67) Suction pipe welded section 6

162 OPERATING PROCEDURE Removing the outdoor fan motor () Remove the top panel, service panel, and front panel. () Disconnect the connector CN6,TAB9 from the outdoor electronic control P.C. board. () Remove the propeller. (4) Remove the outdoor fan motor. Photo 4 PHOTOS Fan motor Propeller 6

163 47 MXZRV E OUTDOOR UNIT OPERATING PROCEDURE PHOTOS.Removing the compressor ()Remove the screws fo the service panel, and remove it. Release refrigerant gas. ()Remove the screws of the top panel, and remove it. ()Remove the screws of the front panel, and remove it. (4)Disconnect the compressor lead wire.(tab64,tab65,tab66) (5)Disconnect the ourdoor controller board connectors CN79, CN79, CN7, CN7,CN66, and CN66.Disconnect the noise filter board connectors CN9, CN9, and CN9. (6)Remove the four screws of the electrical parts, and remove them. (7)Remove the propeller. (8)Remove the screws of the separator, and remove it. (9)Detach the brazed joints of the compressor suction and discharge pipes.(see Photo.) (0)Remove the three compressor nuts and remove the compressor. Photo Front panel Photo Top panel Service panel Control P.C.board Electrical parts Sepatator Terminal Photo Suction pipe braxed part Discharge pipe brazed part 6

164 OPERATING PROCEDURE.Removing the fan motor ()Remove the top panel(five screws),the service panel(four screws),and the front panel (two screws).(see Photo.) ()Disconnect the connector CN9 on the outdoor controller board. ()Remove the propeller. (4)Remove the fan motor. PHOTOS.Removing the 4way valve ()Remove the screws of the top panel, and remove it.(see Photo.) ()Remove the service panel,rear panel,and connect cover panel.release refrigerant gas. ()Remove the electrical parts.(see Photo.) (4)Detach the brazed joint of 4way valve and pipe.(see Photo 4.) Photo 4 4 way valve 4 way valve coil Brazing area 4.Removing the linear expansion valve ()Remove the service panel.(see Photo.) (Gas release is not required if the unit is pumped down.) ()Remove the coil of linear expansion valve. ()Detach the brazed joint of linear expansion valve and pipe. Photo 5 Linear expansion valve coil Linear expansion valve 64

165 OPERATING PROCEDURE 5.Removing the reactor ()Remove the five screws of the top panel, and remove it.(see Photo.) ()Disconnect the reactor lead wire. ()Remove the two screws of the reactor, and take it out. Photo 6 PHOTOS Reactor 65

166 5 PARTS LIST MSC07RV MSC09RV MSCRV E E E (WH) (WH) (WH) 5. INDOOR UNIT STRUCTURAL PARTS 5. ACCESSORY PART 4 (W) (See page 84.) (See page 84.) 0 9 (W) (W)These figures show about MSCRV. 5.INDOOR UNIT STRUCTURAL PARTS Symbol No. Part No. Part Name in Wiring MSC07RV Diagram E (WH) E E E E E E0 4 4 E E E E E E FRONT PANEL(WH) GRILLE(WH) AIR FILTER AIR FILTER BOX(WH) BOX(WH) CORNER BOX (LEFT) CORNER BOX (RIGHT) INSTALLATION PLATE SCREW CAP(WH) CATCH DECORATION COVER AIR CLEANING FILTER DEODORIZING FILTER Q'ty/unit MSC09RV E (WH) MSCRV E (WH) Remarks PCS/SET PCS/SET MAC00FT MAC800DF 5. ACCESSORY PART E REMOTE CONTROLLER HOLDER 66

167 MSC07RV E (WH) MSC09RV E (WH) MSCRV E (WH) 5. INDOOR UNIT ELECTRICAL PARTS 54. INDOOR UNIT HEAT EXCHANGER (W) 5 SLEEVE BEARING ROOM TEMPERATURE THERMISTOR FUSE 7 VARISTOR 5. INDOOR UNIT ELECTRICAL PARTS 8 No. Part No. Part Name Symbol in Wiring MSC07RV Diagram E (WH) E NOZZLE (WH) E VANE UPPER (WH) E VANE LOWER (WH) 4 E DRAIN HOSE 5 E SLEEVE BEARING 6 E VANE MOTOR MV 7 E INDOOR FAN MOTOR MF 8 E FAN MOTOR RUBBER MOUNT 9 E LINE FLOW FAN 0 E BEARING MOUNT E ROOM TEMPERATURE THERMISTOR RT E INDOOR COIL THERMISTOR RT E TERMINAL BLOCK TB E ELECTRONIC CONTROL P.C.BOARD 4 E ELECTRONIC CONTROL P.C.BOARD E ELECTRONIC CONTROL P.C.BOARD 5 E POWER SUPPLY CORD 6 E VANE MOTOR SUPPORT SET 7 E0 7 8 FUSE F 8 E VARISTOR NR (W)These figures show about MSCRV. Q'ty/unit MSC09RV E (WH) MSCRV E (WH) Remarks RC4V9 PCS/SET AUTO RESTART AUTO RESTART AUTO RESTART.5A 54. INDOOR UNIT HEAT EXCHANGER 9 0 E E E E E INDOOR HEAT EXCHANGER INDOOR HEAT EXCHANGER UNION(GAS) UNION(GAS) UNION(LIQUID) {9.5 {.7 {6.5 67

168 55. OUTDOOR UNIT STRUCTURAL PARTS MU07RV E MU09RV E MURV E Part number that is circled is not shown in the illustration. Symbol Q'ty/unit No. Part No. Part name in Wiring Remarks Diagram MU07RV E MU09RV E MURV E E0 6 E E0 6 5 E E E E0 4 0 E E E E E E E0 9 E0 40 E E E E0 9 CABINET TOP PANEL GRILLE(OUT) SERVICE PANEL COMPRESSOR COMPRESSOR COMPRESSOR OUTDOOR HEAT EXCHANGER CAPILLARY TUBE CAPILLARY TUBE STOP VALVE(LIQUID) STOP VALVE(GAS) STOP VALVE(GAS) BASE BASE MOTOR SUPPORT COMPRESSOR RUBBER SET COMPRESSOR RUBBER SET BACK PANEL MC MC MC RH5VGCT RH45VGCT RHVHAT {.0x{.4x600 {.0x{.6x600 {6.5 {9.5 {.7 RUBBERS/SET RUBBERS/SET 68

169 MU07RV E MU09RV E MURV E 56. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS REMOTE CONTROLLER OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS Part number that are circled are not shown in the illustration. Symbol Q'ty/unit No. Part No. Part name in Wiring Diagram MU07RV E MU09RV E MURV E Remarks E E E E E E E E E E E0 8 8 PROPELLER FAN OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR COMPRESSOR CAPACITOR COMPRESSOR CAPACITOR TERMINAL BLOCK TERMINAL BLOCK OUTDOOR FAN CAPACITOR CONTACTOR FUSE SURGE ABSORBER MF MF C C TB TB C 5C F DSAR RA6V RA6V 5+ /440V 0+ /440V.5+ /440V 50VA 57. REMOTE CONTROLLER 0 E REMOTE CONTROLLER 69

170 58. OUTDOOR UNIT STRUCTURAL PARTS MUH07RV E MUH09RV E 4 MUHRV E 6 Part number that are circled are not shown in the illustration. Symbol Q'ty/unit No. Part No. Part name in Wiring Remarks Diagram MUH07RV E MUH09RV E MUHRV E E0 6 E E0 6 5 E E E0 8 0 E0 4 0 E E E E E E E E E E E E E E0 9 E0 40 E E E E E0 440 E E CABINET TOP PANEL GRILLE(OUT) SERVICE PANEL COMPRESSOR COMPRESSOR COMPRESSOR OUTDOOR HEAT EXCHANGER OUTDOOR HEAT EXCHANGER CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE CAPILLARY TUBE STOP VALVE(LIQUID) STOP VALVE(GAS) STOP VALVE(GAS) BASE BASE MOTOR SUPPORT MOTOR SUPPORT COMPRESSOR RUBBER SET COMPRESSOR RUBBER SET BACK PANEL REVERSING VALVE CHECK VALVE MC MC MC 8 4 RH5VGHT RH74VGHT RHVHAT {.0x{.4x800 {.0x{.4x500 {.0x{.4x600 {.0x{.4x550 {.0x{.6x600 {.0x{.6x400 {.0x{.6x700 {.0x{.8x00 {6.5 {9.5 {.7 RUBBERS/SET RUBBERS/SET

171 MUH07RV E MUH09RV E MUHRV E 59. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS REMOTE CONTROLLER ACCESSORY PARTS OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS Part number that are circled are not shown in the illustration. Symbol Q'ty/unit No. Part No. Part name in Wiring Diagram MUH07RV E MUH09RV E MUHRV E Remarks E E E E E E E E E E E0 8 8 E E E PROPELLER FAN OUTDOOR FAN MOTOR OUTDOOR FAN MOTOR COMPRESSOR CAPACITOR COMPRESSOR CAPACITOR TERMINAL BLOCK TERMINAL BLOCK DEFROST THERMISTOR DEFROST THERMISTOR DEICER P.C. BOARD SURGE ABSORBER REVERSING VALVE COIL FUSE VARISTOR 50. REMOTE CONTROLLER 7 MF MF C C TB TB RT6 RT6 DSAR S4 F6 NR6 E REMOTE CONTROLLER 5. ACCESSORY PARTS 4 E E DRAIN SOCKET DRAIN CAP RA6V RA6V 5+ /440V 0+ /440V 50V A

172 MUX0RV E 5. OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS REMOTE CONTROLLER OUTDOOR UNIT FUNCTIONAL PARTS AND ELECTRICAL PARTS Part number that is circled are not shown in the illustration. Symbol Q'ty / unit No. Parts No. Parts Name in Wiring Remarks MUX0RV E Diagram M PROPELLER FAN TW E4 0 OUTDOOR FAN MOTOR MF RA6V TW E4 88 BYPASS VALVE SOLENOID COIL A R 4 TW E9 89 BYPASS VALVE SOLENOID COIL B R 5 TW E4 89 BYPASS VALVE SOLENOID COIL R 6 TW E60 75 TERMINAL BLOCK TB 7 M TERMINAL BLOCK TB L N 8 TW COMPRESSOR CONTACTOR 5C,5C 9 M N7 50 FAN MOTOR CAPACITOR C.5+440V 0 TW 04 5 COMPRESSOR CAPACITOR C 7+440V TW E0 0 OVERCURRENT RELAY 5C M B00 40 RELAY G4FT TW E60 76 TERMINAL BLOCK TB,,, 4 TW A79 8 FUSE F,F A 50V 5. REMOTE CONTROLLER 5 E REMOTE CONTROLLER 7

173 54. OUTDOOR UNIT STRUCTURAL PARTS MUX0RV E Symbol Q'ty / unit No. Parts No. Parts Name in Wiring Remarks MUX0RV E Diagram TW 48 5 OUTER NOZZLE TW E0 CABINET M TOP PANEL 4 TW OUTDOOR HEAT EXCHANGER 5 TW MOTOR SUPPORT 6 TW E0 9 SEPARATOR M M M SOLENOID VALVE CAPILLARY TUBE ([.0x[.4x0) SOLENOID VALVE [.0x[.4x400 [.0x[.4x400 0 M K08 96 TW E4 66 CAPILLARY TUBE ([.0x[.6x00) STOP VALVE(LIQUID) [.0x[.6x000 TW E4 66 STOP VALVE TW E0 BASE ASSEMBLY 4 5 T TW E0 45 COMPRESSOR SERVICE PANEL MC KH4VLL When servicing, cut the tube to the propper length as shown in the REFRIGERANT SYSTEM DIAGRAM. See page 8. 7

174 55. OUTDOOR UNIT FUNCTIONAL PARTS AND AND ELECTRICAL PARTS AND STRUCTURAL PARTS MUX8RV E REMOTE CONTROLLER 7 74

175 MUX8RV E 55. OUTDOOR UNIT FUNCTIONAL PARTS AND AND ELECTRICAL PARTS AND STRUCTURAL PARTS Part number that is circled are not shown in the illustration. Symbol Q'ty / set No. Parts No. Parts Name in Wiring Remarks MUX8RV E Diagram TW 50 M B57 49 TW M K59 45 TW E4 9 TW E60 75 TW E60 76 TW 04 5 M W6 50 TW 8 4 TW M B9 55 TW A 4 TW E4 489 TW E4 488 TW A7 0 R M M M K59 66 M K59 66 TW TW M L0 666 M SJ4 667 T TW A74 60 CABINET SIDE PANEL OUTER NOZZLE SERVICE PANEL BACK PANEL TERMINAL BLOCK TERMINAL BLOCK COMPRESSOR CAPACITOR OUTDOOR FAN CAPACITOR OUTDOOR FAN RELAY CONTACTOR MOTOR SUPPORT SOLENOID COIL SOLENOID COIL(B) SOLENOID COIL(C) OUTDOOR FAN MOTOR PROPELLER FAN SOLENOID VALVE SOLENOID VALVE STOP VALVE(LIQUID) STOP VALVE(GAS) STOP VALVE(LIQUID) STOP VALVE(GAS) UNION(/4) UNION(/8) COMPRESSOR OUTDOOR HEAT EXCHANGER TB TB C, C X,X 5C,5C R R R MF MC,MC 7µF 440V µf 440V LYF RA6V50 KH4VLL [.0X[.6X,000 8 M S07 96 CAPILLARY TUBE ([.0X[.6X,400) [.0X[.6X, M G46 96 M B9 96 TW E0 0 TW E6 77 M M B00 40 TW E06 TW A79 8 CAPILLARY TUBE ([.0X[.6X800) CAPILLARY TUBE ([.0X[.4X,00) OVERCURRENT RELAY TERMINAL BLOCK TERMINAL BLOCK RELAY BASE FUSE 5C,5C TB X,X,5CA F,F,F4 [.0X[.6X00 [.0X[.4X,00 G4FT A 50V When servicing, cut the tube to the propper length as shown in the REFRIGERANT SYSTEM DIAGRAM. See page REMOTE CONTROLLER 7 E REMOTE CONTROLLER 75

176 57. OUTDOOR UNIT FUNCTIONAL PARTS AND AND ELECTRICAL PARTS MUX4RV E REMOTE CONTROLLER OUTDOOR UNIT FUNCTIONAL PARTS AND AND ELECTRICAL PARTS Part number that is circled is not shown in the illustration. Symbol Q'ty / unit No. Parts No. Parts Name in Wiring Remarks MUX4RV E Diagram TW E44 0 FAN MOTOR MF M 7A 50 PROPELLER FAN TW E44 88 SOLENOID COIL R 4 TW E44 89 SOLENOID COIL R 5 TW E8 88 SOLENOID COIL R 6 TW E8 89 SOLENOID COIL R4 7 TW E7 88 SOLENOID COIL RA 8 TW E7 89 SOLENOID COIL RB 9 TW 8 4 FAN MOTOR RELAY X,X LYF 0 M B00 40 RELAY X,X,X,X4 4 G4FTMT TW COMPRESSOR RELAY 5C,5C 5C,5C4 4 AC00/40V TW E06 5 FAN MOTOR CAPACITOR =/440V TW A6 5 COMPRESSOR CAPACITOR C 0=/40V 4 TW E6 75 TERMINAL BLOCK TB 5 TW E44 75 TERMINAL BLOCK TB,TB TB,TB4 4 6 M TERMINAL BLOCK TB5,6,7,8,9,0 6 7 TW E08 8 FUSE.5A 50V 8 TW COMPRESSOR CAPACITOR C 5=/40V 58. REMOTE CONTROLLER 9 E REMOTE CONTROLLER 76

177 59. OUTDOOR UNIT STRUCTURAL PARTS MUX4RV E Part number that are circled is not shown in the illustration. No. Parts No. Parts Name Symbol Q'ty / unit in Wiring MUX4RV E Diagram Remarks TW E44 TW E44 5 TW E44 45 TW E44 49 TW E44 97 TW E44 5 TW E44 48 TW E44 60 TW E44 M 5E 55 FRONT PANEL OUTER NOZZLE SERVICE PANEL SIDE PANEL TOP PANEL REAR GUARD REAR PANEL HEAT EXCHANGER BASE MOTOR SUPPORT T T M M J 66 M 00L 66 M 00A 66 TW E TW E44 64 TW E44 64 TW E44 64 TW E M K47 96 M AJ 96 COMPRESSOR(A,B) COMPRESSOR(C,D) SOLENOID VALVE(A,B) STOP VALVE(LIQUID) STOP VALVE STOP VALVE SOLENOID VALVE PIPE A S. V S. V HEADER A PIPE B S. V S. V HEADER B CAPILLARY TUBE ([.0O[.6O800) CAPILLARY TUBE ([.0O[.6O00) MC MC 4 4 RH74VGH RHVHA LIQUID [.0O[.6O40 [.0O[.6O650 [.0O[.6O000 When servicing, cut the tube to the propper length as shown in the REFRIGERANT SYSTEM DIAGRAM. See page 4. 77

178 50. OUTDOOR UNIT STRUCTURAL PARTS MXZ8RV E No. Parts No. Parts Name Symbol in Wiring Diagram Q'ty / unit MXZ8RV E Remarks M LL4 M LL4 5 M LL4 97 M LL4 45 R0 A00 66 M LL4 48 M LL4 5 M SJ4 60 M SJ4 TW A TW A TW A70 55 TW A70 T FRONT PANEL FAN GUARD TOP PANEL SERVICE PANEL SIDE PANEL REAR PANEL REAR GUARD OUTDOOR HEAT EXCHANGER BASE ASSEMBLY HANDLE HANDLE MOTOR SUPPORT LABEL COMPRESSOR MC RHV 07FEM 78

179 5. OUTDOOR UNIT FUNCTURAL PARTS MXZ8RV E Part number that are circed are not shown in the illustration. No. Parts No. Parts Name Symbol in Wiring Diagram Q'ty / unit MXZ8RV E Remarks M LL4 50 TW E4 0 M LL4 488 M LL4 487 M LL4 646 M SJ4 667 M SJ4 666 TW A T7W TW E4 646 M LL4 99 M LL4 98 M M L 96 PROPELLER FAN OUTDOOR FAN MOTOR EXPANSION VALVE (COIL) EXPANSION VALVE (COIL) EXPANSION VALVE UNION (/8F) UNION (/4F) BALL VALVE (/8) REVERSING VALVE HIGH PRESSURE SWITCH ACCUMULATOR MUFFLER CAPILLARY TUBE ([4.0 [.4 000) CAPILLARY TUBE ([.0 [ ) MF LEV. A LEV. B HPS RA6V50 [4.0 [.4 00 [4.0 [ [.0 [ When servicing, cut the tube to the propper length as shown in the REFRIGERANT SYSTEM DIAGRAM. See page 4. 79

180 5. OUTDOOR UNIT ELECTRICAL PARTS MXZ8RV E Part number that are circed are not shown in the illustration. No. Parts No. Parts Name Symbol in Wiring Diagram Q'ty / unit MXZ8RV E Remarks M A9 447 M U48 6 TW E 4 TW A70 56 TW A70 57 M LL4 44 TW E4 09 M V47 44 TW E58 75 TW E58 76 TW E58 45 TW E4 44 TW A70 7 TW E4 98 TW E4 07 TW E4 08 TW E55 09 TW E 45 TW E4 06 DIODE MODULE CURRENT DETECTING RESISTOR DIODE STACK SMOOTHING CAPACITOR POWER FACTOR CAPACITOR NOISE FILTER FIN TEMPERATURE THERMISTOR POWER TRANSISTOR MODULE TERMINAL BLOCK TERMINAL BLOCK ELECTRONIC CONTROL P.C. BOARD RELAY P.C. BOARD REACTOR R.V. COIL SUCTION TEMPERATURE THERMISTOR DEFROST TEMPERATURE THERMISTOR DISCHARGE TEMPERATURE THERMISTOR NOISE FILTER GAS PIPE TEMPERATURE THERMISTOR DS6 R65 DS6 C67 C6 NF6 RT6 TR TB TB L S4 RT66 RT6 RT6 NF6 RT64, V V SUCTION EVAPORATION 80

181 5. OUTDOOR UNIT STRUCTURAL PARTS MXZRV E Part number that is circled are not shown in the illustration. No. Parts No. Parts Name Symbol in Wiring Diagram Q'ty / unit MXZRV E Remarks M 7A 50 TW E40 0 TW E40 45 M 7A 447 M 7A 44 M 7E 7 TW E40 57 TW E40 56 TW E59 45 TW E40 44 TW E58 75 TW E58 76 M 4A 40 M 4E 07 M 4A 08 TW E M 7A 6 M 4V 08 TW E40 89 TW E40 44 PROPELLER FAN OUTDOOR FAN MOTOR IPM P.C. BOARD DIODE STACK DIODE MODULE REACTOR POWER FACTOR CAPACITOR SMOOTHING CAPACITOR CONTROL P.C. BOARD NOISE FILTER BOARD TERMINAL BLOCK TERMINAL BLOCK RELAY GAS PIPE TEMPERATUR THERMISTOR FIN TEMPERATURE THERMISTOR H.P. SWITCH RESISTOR THERMISTOR SOLENOID COIL RELAY P.C. BOARD MF6 DS6 DS6 L C6 C6,C6 TB TB X64 RT66,67,68,69 RT6 6H R RT6,6,64,65 S4,S V V A,B,C,D.4MPa(5kg/j) SUCTION,EVAPORATION DISCHARGE,DEFROST SOLENOID,R.V./SET 8

182 54. OUTDOOR UNIT FUNCTIONAL PARTS MXZRV E Part number that is circled are not shown in the illustration. Symbol Q'ty / unit No. Parts No. Parts Name in Wiring Remarks MXZRV E Diagram M 7A M 7A 45 M 7A 49 M 7A 97 TW E40 5 TW E40 48 TW E40 47 T7W M 7A 647 M B0 646 M 7A 640 FRONT PANLE SERVICE PANEL SIDE PANEL TOP PANEL REAR GUARD REAR PANEL C. COVER REVERSING VALVE L.P. SWICH H.P. SWICH WAY VALVE 6L 6H M 4E 644 M 4V 65 M 4V 65 M 4A 65 M 4E 65 TW E40 48 M 7A M 4E 60 T TW E59 96 M K89 96 M L 96 UNION EXPANSION VALVE EXPANSION VALVE EXPANSION VALVE EXPANSION VALVE CRANKCASE HEATER BASE ASSEMBLY HEAT EXCHANGER COMPRESSOR CAPILLARY TUBE([.5O[0.6O000) CAPILLARY TUBE([.0O[.0O0) CAPILLARY TUBE([.0O[0.6O000) MC /,/8,/4 SET A room B room C room D room CHV5FAA [.5O[0.6O750 [.0O[.0O500 [.0O[0.6O000 When servicing, cut the tube to the propper length as shown in the REFRIGERANT SYSTEM DIAGRAM. See page 4. 8