Hitachi RAF-50RPA Service Manual
  1. Manuals
  2. Brands
  3. Hitachi Manuals
  4. Ventilation
  5. RAF-50RPA
  6. Service manual
Hitachi RAF-50RPA Service Manual

Hitachi RAF-50RPA Service Manual

Hide thumbs Also See for RAF-50RPA:
Table of Contents

Quick Links

See also: Instruction Manual
SERVICE MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
OUTDOOR UNIT
RAC-50FPA
SPECIFICATIONS
TYPE
MODEL
POWER SOURCE　　
TOTAL INPUT
TOTAL AMPERES
COOLING
CAPACITY
TOTAL INPUT
TOTAL AMPERES
HEATING
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
ROOM AIR CONDITIONER
JULY 2013
INDOOR UNIT
RAF-50RPA
(A)
(kW)
(B.T.U./h)
(W)
(A)
(kW)
(B.T.U./h)
W
H
D
(kg)
INDOOR UNIT + OUTDOOR UNIT
Hitachi Household Appliances(Wuhu) Co., Ltd.
HHAW NO. 00 70E-2
RAF-50RPA
RAC-50FPA
REFER TO THE FOUNDATION MANUAL
SPECIFICATIONS......................................
HOW TO USE ........................................
MAIN PARTS COMPONENT ............................
WIRING DIAGRAM ....................................
BLOCK DIAGRAM ....................................
BASIC MODE ........................................
REFRIGERATING CYCLE DIAGRAM ..................
TROUBLE SHOOTING ................................
PARTS LIST AND DIAGRAM ..........................
DC INVERTER
INDOOR UNIT
RAF-50RPA
1 PHASE, 50Hz, 220V - 230V
1,510 (500
6.64 - 6.94
5.0 (1.9
17,060 (6,480
1,660 (500
7.30 - 7.63
6.0 (2.2
20,4
72
(7,5
760
600
235
14
1
CONTENTS
　　
OUTDOOR UNIT
RAC-50FPA
～
2,100)
～
5.2)
～
17,740)
～
2,700)
～
7.3)
～
10
24,
910
)
792 (+95)※
600
299 (+46)※
40
※ After installation
6
8
27
29
31
32
35
36
46
47
52
69
72
97
Table of Contents
loading

Related Manuals for Hitachi RAF-50RPA

Summary of Contents for Hitachi RAF-50RPA

  • Page 1: Table Of Contents

    ～ (B.T.U./h) 20,4 (7,5 792 (+95)※ DIMENSIONS (mm) 299 (+46)※ NET WEIGHT (kg) ※ After installation SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT. ROOM AIR CONDITIONER INDOOR UNIT + OUTDOOR UNIT JULY 2013 Hitachi Household Appliances(Wuhu) Co., Ltd.
  • Page 2 DANGER...
  • Page 3 WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS 1. Scope The standards provide for items to be generally observed in carrying and handling semiconductors in relative manufactures during maintenance and handling thereof. (They apply the same to handling of abnormal goods such as rejected goods being returned.) 2.
  • Page 4 (6) Use a three wire type soldering iron including a grounding wire. Metal plate (of Al. stainless steel, etc.) Bare copper wire (for body earth) Working table Resistor 1MΩ(1/2W) Staple Earth wire Fig.3 Grounding of the working table soldering iron Grounding wire Screw stop at the screwed part using a rag plate...
  • Page 5 CAUTION 1. In quiet operation or stopping the running, its heard slight flowing noise of refrigerant in the refrigerating cycle occasionally, but this noise is not abnormal for the operation. 2. When it thunders near by, it is recommend to stop the operation and to disconnect the power cord plug from the power outlet for safety.

  • Page 6: Specifications

    SPECIFICATIONS RAF-50RPA RAC-50FPA MODEL 25W (DC35V) 47W (DC380V) FAN MOTOR FAN MOTOR CAPACITOR FAN MOTOR PROTECTOR ASG133CDMB7AT COMPRESSOR OVER HEAT PROTECTOR OVERLOAD RELAY FUSE (for MICRO COMPUTER) G4A-1A POWER RELAY, STICK RELAY POWER SWITCH TEMPORARY SWITCH SERVICE SWITCH TRANSFORMER 450NR...
  • Page 7 Figure showing the installation of lndoor and Outdoor unit [Indoor unit installation] Direction of Piping Above 150mm different directions: direct rear piping, Above 200mm right downward piping and right sideways piping. Above 100mm Be sure to completely seal any gap with putty. Plug Drain pipe Must be installed separately.

  • Page 27: Construction And Dimensional Diagram

    CONSTRUCTION AND DIMENSIONAL DIAGRAM MODEL RAF-50RPA Unit : mm INDOOR UNIT Wireless remote φ65 Standard underfloor piping position controller Cabinet Front panel Air outlet Infrared receiver Small dia. pipe (φ6.35) Large dia. pipe (φ9.52) Piping hole Piping hole Air inlet...
  • Page 28 CONSTRUCTION AND DIMENSIONAL DIAGRAM MODEL　 OUTDOOR UNIT Unit : mm 　 NOTE: 1.For outdoor unit installation , allow at least 2 sides of space around the unit ensure ventilation flue 2.The connecting pipe , should all the insulated with insulation pipe. 3.Piping length is within 20m.

  • Page 29: Main Parts Component

    MAIN PARTS COMPONENT THERMOSTAT (Room temperature Thermistor) Thermostat Specifications MODEL RAF-50RPA THERMOSTAT MODEL OPERATION MODE COOL HEAT 15.3 (62.1) 16.7 (62.1) INDICATION 15.0 (60.8) 17.3 (63.1) 23.3 (76.5) 24.7 (76.5) TEMPERATURE INDICATION ˚C (˚F) 23.0 (75.2) 25.3 (77.5) 31.3 (90.9) 32.7 (90.9)
  • Page 30 RAC-50FPA 2M= 1.65 5Ý& 2M= 1.97 75 Ý& YELLOW WHITE CAUTION When the refrigerating cycle has been operated for a long time with the capillary tubes clogged or crushed or with too little refrigerant, check the color of the refrigerating machine oil inside the compressor. If the color has been changed conspicuously, replace the compressor.
  • Page 31 　 　 Ｃ Ｏ Ｎ Ｔ Ｒ Ｏ Ｌ Ｐ． Ｗ． Ｂ． ※ NOTE 1.Connecting cable 1.5mm dia.x2 (C D line) is used for the connection.

  • Page 32: Wiring Diagram

    WIRING DIAGRAM OF THE PRINTED WIRING BOARD e l l...
  • Page 34 MODEL RAC-50FPA...

  • Page 35: Block Diagram

    BLOCK DIAGRAM INDOOR UNIT 230V L(A) N(B) Wireless receive Wireless remote Buzzer circuit circuit control Filter. Indicating lamp Operation. Timer. Heat exchanger thermistor Room temperature Auto sweep motor 1 thermistor Indoor / Outdoor Temporary switch interface circuit DC fan motor drive Initial setting circuit circuit Reset circuit...

  • Page 36: Basic Mode

    BASIC MODE MODEL RAF- 50RP Operation mode n i l y f i Auto Basic operation of Start Stop Start Stop Start / stop switch start / stop switch Operation lamp Start / stop switch Reserve switch Cancel switch Operation lamp Off-timer Timer lamp Timer memory...
  • Page 37 Mode data file REQUIRED VALUE OF UNIT SIDE REQUIRED VALUE OF UNIT SIDE LABEL NAME LABEL NAME RAF-50RPA RAF- 50RP WMAX 6000 FWAH_P 1000 WMAX2 6400 FWH_P 1100 WSTD 4700 FWAHH_P 1000 WJKMAX 4100 FWHH_P 1100 WBEMAX 3600 FCSOY_P FCS_P...
  • Page 38 3min. Notes: (1) Condition for entering into Cool Dashed mode. When fan set to “Hi” or “Auto and when the compressor speed (P section) due to temperature difference between setting temperature (including the correction shift only) and room temperature is CMAX or higher. (2) Cool Dashed will release when i) a maximum 25 minutes is lapsed and ii) room temperature is lower than set temperature –3°C (thermo off) and iii) when room temperature has achieved setting temperature –1°C then maximum Cool Dashed time will be revised to 20 minutes.
  • Page 40 Notes: (1) If the room temperature is (cooling preset temperature) - (1.33°C) or less after 30 seconds from starting the operation, the operation is done assuming as the preset temperature = (room temperature at the time) - (2°C). (2) The indoor fan is operated in the “Lo” mode. During thermo OFF indoor fan will be OFF for 5 minutes and ON for 1 minute. (3) When the operation is started by the themostat turning ON, the start of the indoor fan is delayed 32 seconds after the start of compressor operation.
  • Page 42 Notes: (1) Condition for entering into Hot Dashed mode. When fan set to “Hi” or “Auto mode” and i) Indoor temperature is lower than 18°C, and ii) outdoor temperature is lower than 10°C, and iii) compressor speed (P section) due to temperature difference between setting temperature (including the correction shift only) and room temperature is WMAX or higher.
  • Page 43 Setting Defrosting Inhibit Period DFTIM_OT P5 DFTIM_OTP 10 DFTIM_OT P0 Outdoor temperature – 1 0 – 5˚C ˚C Notes: The first inhibit time after operation start is set to DFTIM_FST. From the second time onwards, the inhibit time is set according to the time required for defrosting.
  • Page 45 ECO button Cooling:0.66 Dehumidifying:0.66 Set temperature Heating:0.66 Current restrict Compressor speed Notes: Can’t set POWERFUL and ECO at the same time. During FAN operation,can’t set ECO. SILENT Silent button Indoor WSZMAX/CSZMAX Compresson speed Outdoor Notes: Can’t set POWERFUL and SILENT at the same time.

  • Page 46: Refrigerating Cycle Diagram

    RAF-50RP A/RAC-50FPA COOLING CYCLE OUTDOOR UNIT INDOOR UNIT HEATING CYCLE INDOOR UNIT OUTDOOR UNIT...

  • Page 47: Disassembly & Assembly Procedure

    ',6$66(0%/< $66(0%/< 352&('85( $,5 ),/7(5 &OHDQ WKH DLU ILOWHU DV LW UHPRYHV GXVW LQVLGH WKH URRP %H VXUH WR FOHDQ WKH ILOWHU RQFH HYHU\ WZR ZHHNV VR DV QRW WR FRQVXPH HOHFWULFLW\ XQQHFHVVDULO\ 352&('85( 2SHQ WKH IURQW SDQHO ‡ 7R RSHQ WKH IURQW SDQHO XVH WKH UHPRWH FRQWUROOHU WR VWRS XQLW RSHUDWLRQ 7KHQ SUHVV DW WKH WRS OHIW DQG ULJKW FRUQHUV RI WKH IURQW SDQHO ‡...
  • Page 48 )5217 &29(5 5HPRYH WKH IURQW SDQHO 5HPRYH WKH IURQW FRYHU 5HPRYH WKH ERWWRP VFUHZV DQG WRS VFUHZV 3XOO WKH IURQW FRYHU DSSUR[LPDWHO\ PP WRZDUG \RX 6FUHZ 6FUHZ &DELQHW )URQW &RYHU $77$&+,1* :KHQ DWWDFKLQJ WKH IURQW FRYHU IROORZ WKH DERYH SURFHGXUH LQ UHYHUVH RUGHU 0DNH VXUH WKH KRRNV DW WKH IURQW FRYHU WRS VXUIDFH DUH VHFXUHO\ LQVHUWHG LQWR WKH FDELQHW...
  • Page 49 ,1',&$7,1* 3:% 5HPRYH WKH IURQW SDQHO DQG WKH IURQW FRYHU 5HPRYH WKH LQGLFDWLQJ 3:% FDVH 386+ &ODZ 386+ 386+ &ODZ ',6&+$5*( )5$0( 5HPRYH WKH IURQW SDQHO DQG WKH IURQW FRYHU 5HPRYH WKH IL[LQJ VFUHZV RI WKH GLVFKDUJH IUDPH DQG WKHQ SXOO RXW WKH GLVFKDUJH IUDPH WRZDUG \RX 6FUHZ...
  • Page 50 (/(&75,&$/ 3$576 &$6( 5HPRYH WKH IURQW SDQHO DQG WKH IURQW FRYHU 5HPRYH WKH IL[LQJ VFUHZV RI WKH HOHFWULFDO SDUWV FDVH 6FUHZ (OHFWULFDO SDUWV FDVH 6FUHZ...
  • Page 51 )$1 02725 $1' 7$1*(17,$/ $,5 )/2: )$1 VFUHZV WKDW DUH WKH IL[DWLRQ RI HYDSRUDWRU DUH UHPRYHG 7KH WDE ZKHUH WKH OHIW VLGH RI HYDSRUDWRU LV IL[HG LV UHPRYHG (YDSRUDWRU LV OLIWHG XS DQG UHPRYHG (YDSRUDWRU 6FUHZ 6FUHZ 7ZR VFUHZV WKDW LV WKH IL[DWLRQ RI IDQPRWRU VXSSRUW LV UHPRYHG...

  • Page 52: Description Of Main Circuit Operation

    DESCRIPTION OF MAIN CIRCUIT OPERATION RAF-50RPA 02'(/ 1. Power circuit CN10 XA-6P-Top Indoor Fan Motor Q131 ICP2 R121 Q111 L111 ICP1 R114 Q113 Q115 D121 Q112 R115 IC121 IC111 Q114 Q751 Q116 IC712 12 V power supply Power supply voltage...
  • Page 53 2. Reset Circuit Reset R523 Microcomputer R522 IC521 Fig.2-1 Timing chart Voltage 5 . 0V ② pin of IC521 supply voltage RES detecting voltage RES canceling voltage 4 . 4V 4 . 2V Voltage ① pin of IC521 output voltage 5.0V or ⑪...
  • Page 54 3. Fan Motor Drive Circuit CN10 35V line Microcomputer 5V line No. of L751 R751 rotation output Fan Motor Q751 C751 R752 No. of rotation detect R631 C631 Fig. 3-1 The waveform of voltage at the T1 = Low No. of rotation point T2 = High No.
  • Page 55 • When the buzzer sounds, an approx. 3.9kHz square signal is output from buzzer output pin 83 of the micro computer. After the amplitude of this signal has been set to 12Vp-p by a transistor, it is applied to the buzzer. The piezoelectric element in the buzzer oscillates to generate the buzzer's sound.
  • Page 56 6. Initial Setting Circuit (IC401) When power is supplied, the microcomputer reads the data in IC401 (E PROM) and sets the preheating activation value and the rating and maximum speed of the compressor, etc. to their initial values. Data of self-diagnosis mode is stored in IC401; data will not be erased even when power is turned off. Microcomputer C401 External ROM...
  • Page 57 DSW1 R923 R541 R543 DSW1...
  • Page 58 02'(/ 50FP A 3RZHU &LUFXLW 5($&725 <(/ 7$% 7$% 3:% 0$,1 3:% ,30%2$5' & TERMINAL ',2'( %5,'*( 7$% BOARD / 1250$/ &2,/ 5/ 32:(5 5(/$< ) $ )86( / 1) &2,/ ' :+ 4 5 5 '% '% 5 :+ 4 ,1586+ &855(17 5(/$<...
  • Page 59 &RQWURO 3:% 0LFURFRPSXWHU $&9 '&9...
  • Page 60 && & & & & / / 6PRRWKLQJ +,& &DSDFLWRU /' 3:% &RQWURO 5HDFWRU FRQQHFWRU 3:% ,30...
  • Page 61 3. Latch-type reversing valve control circuit ※ Timing for voltage measurement ・This model comes equipped with a latch-type reversing valve. Forcible cooling ・The latch-type reversing valve is so designed switch (test switch) that its valve is "slid" in a specified direction Reversing valve according to a specific operation mode, thereby switching freezing channels and retaining the...
  • Page 63 5. Electric expansion valve circuit...
  • Page 64 3.15A Fuse Switching power source...
  • Page 65 3.15A 3.15A ( DC260-360V )
  • Page 67 Intelligent power module switches power supply current according to position of the compressor motor rotor. The switching order is as shown in Fig. 7-2. : U + is ON, V - is ON (circuit in Fig. 7-1) At point : U + is chopped (OFF), V - is ON (circuit in Fig. 7-4) At point Upper arm transistor...
  • Page 68 C032 R008 Fig. 7-4 Power module circuit (U is OFF, V is ON) – Since current flows at point B only when U transistor and V – transistor are ON, the current waveform at point B becomes intermittent waveform as shown in Fig. 3. Since current at point B is approximately proportional to the input current of the air conditioner, input current is controlled by using DC current (Id) detection resistor.

  • Page 69: Service Call Q&A

    6(59,&( &$// 4 $ 02'(/ RAF-50RP A / RAC-50FP A &22/,1* 02'( 7KH FRPSUHVVRU KDV VWRSSHG &KHFN LI LQGRRU KHDW ,I WKH DLU FRQGLWLRQHU RSHUDWHV LQ VXGGHQO\ GXULQJ FRROLQJ H[FKDQJHU LV IURVWHG FRROLQJ PRGH ZKHQ LW LV FROG RSHUDWLRQ :DLW IRU PLQXWHV XQWLO LW LV WKH HYDSRUDWRU PD\ JHW IURVWHG GHIURVWHG DEHUMIDIFYING MODE...
  • Page 70 $872 )5(6+ '()5267,1* $IWHU WKH 212)) EXWWRQ LV SUHVVHG WR $XWR )UHVK 'HIURVWLQJ LV FDUULHG RXW WKH V\VWHP VWRS KHDWLQJ WKH RXWGRRU XQLW LV VWLOO FKHFNV WKH RXWGRRU KHDW H[FKDQJHU DQG GHIURVWV LW ZRUNLQJ ZLWK WKH 23(5$7,21 ODPS DV QHFHVVDU\ EHIRUH VWRSSLQJ RSHUDWLRQ OLJKWLQJ $872 23(5$7,21 )DQ VSHHG GRHV QRW FKDQJH ZKHQ IDQ...
  • Page 71 27+(56 7KLV LV EHFDXVH WKH FRRO 7KH KHDW H[FKDQJHU WHPSHUDWXUH LV 7KH LQGRRU IDQ YDULHV ZLQG SUHYHQWLRQ IXQFWLRQ VHQVHG LQ WKH DXWR IDQ VSHHG PRGH DPRQJ KLJK DLU IORZ ORZ LV RSHUDWLQJ DQG GRHV QRW :KHQ WKH WHPSHUDWXUH LV ORZ WKH IDQ DLU IORZ DQG EUHH]H LQ WKH LQGLFDWH D IDXOW VSHHG YDULHV DPRQJ KLJK DLU IORZ ORZ DLU...

  • Page 72: Trouble Shooting

    7528%/( 6+227,1* 02'(/ RA 50FP A 35(&$87,216 )25 &+(&.,1* 9 +]...
  • Page 73 3URFHGXUHV IRU (OHFWULFDO 'LVFKDUJH DQG +RZ WR 6WRS (QHUJL]LQJ WKH 3RZHU &LUFXLW '& YROWDJH PHDVXULQJ SRLQW 6PRRWKLQJ '& YROWDJH +,& &DSDFLWRU PHDVXULQJ SRLQW /' 3:% &RQWURO 5HDFWRU FRQQHFWRU 3:% ,30...
  • Page 75 7528%/( 6+227,1* :+(1 7+( 7,0(5 /$03 %/,1.6 02'(/ RAF-50RP A :KHQ WKH WLPHU ODPS RQ WKH GLVSOD\ VHFWLRQ RI WKH LQGRRU XQLW EOLQNV UHIHU WR WKH IROORZLQJ WDEOH /DPS EOLQNLQJ PRGH 0DLQ GHIHFWLYH VHF 2QFH 5HYHUVLQJ YDOYH GHIHFWLYH VHF 7LPHV )RUFHG RSHUDWLRQ RI RXWGRRU XQLW VHF...
  • Page 76 LIGHTING MODE OF THE SELF-DIAGNOSIS LAMP MODEL RAC-50F P A DANGER (DC350V) SELF-DIAGNOSIS USED-JW002 OUTDOOR FAN MOTOR TEST/SERVICE SELF-DIAGNOSIS USED-JW001 CONNECTOR(CN24) SWITCH CN17 DC INPUT(-) LED LD303 LED LD302 DC INPUT(+) LED LD301 P.W.B.IPM FUSE F3 P.W.B.MAIN FUSE F4 COMPRESSOR CONNECTOR...
  • Page 79 &+(&.,1* 7+( ,1'225287'225 81,7 (/(&75,&$/ 3$576 $1' 5()5,*(5$7,1* &<&/( MODEL RAF-50RPA/ RAC-50FPA
  • Page 80 &+(&.,1* 7+( ,1'225 81,7 (/(&75,&$/ 3$576 3RZHU GRHV QRW FRPH RQ QR RSHUDWLRQ &KHFN WKH LQGRRURXWGRRU XQLW ,V 9 '& EHLQJ JHQHUDWHG ,V 9 $& EHLQJ JHQHUDWHG FRQQHFWLQJ FRUG DQG FRUUHFW DQ\ EHWZHHQ WHUPLQDOV & DQG ' RQ EHWZHHQ WHUPLQDOV / DQG 1 RQ GHIHFWLYH VHFWLRQ ZURQJ FRQQHF WKH WHUPLQDO ERDUG"...
  • Page 81 2XWGRRU XQLW GRHV QRW RSHUDWH EXW UHFHLYHV UHPRWH LQIUDUHG VLJQDO 6HW URRP WHPSHUDWXUH ℃ LQ WKH FRROLQJ PRGH RU WR ℃ LQ WKH KHDWLQJ PRGH DQG SUHVV WKH VWDUWVWRS EXWWRQ 5HPRYH WKH RXWGRRU XQLW FRYHU DQG &KHFN WKH URRP WHPSHUDWXUH HOHFWULFDO SDUWV FRYHU DQG FKHFN WKHUPLVWRU LI LW LV GHIHFWLYH VHOIGLDJQRVLV ODPS /'...
  • Page 82 ,QGRRU IDQ VSHHG GRHV QRW FKDQJH RWKHUV DUH QRUPDO
  • Page 83 &KHFNLQJ WKH PDLQ 3:% SRZHU FLUFXLW &KHFN ZKHWKHU WKH FRQQHFWLRQ FDEOH LV ,V 9 EHLQJ RXWSXW DW SLQ GLVFRQQHFWHG RU FRQQHFWHG UHYHUVHO\ ① UHODWLYH WR 9 DW SLQ ③ &KHFN WKH RXWGRRU XQLW PDLQ 3:% LI LW LV RI &1"
  • Page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
  • Page 85 &+(&.,1* 7+( 287'225 81,7 (/(&75,&$/ 3$576 MODEL RAC-50FPA...
  • Page 89 6ZLWFK 2)) PDLQ SRZHU VXSSO\ 6KRUW FLUFXLW EHWZHHQ -: DQG -: 6ZLWFK 21 PDLQ SRZHU VXSSO\ ² /' ZLOO EOLQN WLPH :LWKLQ PLQXWHV 3UHVV 7HVW 6ZLWFK IRU VHFRQG RU PRUH 6HOIGLDJQRVLV UHVXOW ZLOO EH VKRZQ ² /' ZLOO 21 /,7 DQG /' ZLOO EH EOLQNLQJ 7KHQ UHIHU WR GLDJQRVLV WDEOH 6ZLWFK 2)) PDLQ SRZHU VXSSO\ 7KHQ UHOHDVH EDFN -: DQG -: WR RULJLQDO FRQGLWLRQ QR VKRUW FLUFXLW FRQGLWLRQ...
  • Page 90 &+(&.,1* 7+( 5(027( &21752//(5...
  • Page 92 Please set the DIP switch No.6 to ON accordingly (Refe to page 57).
  • Page 95 CHECKING THE REFRIGERATING CYCLE (JUDGING BETWEEN GAS LEAKAGE AND COMPRESSOR DEFECTIVE) Lighting mode Blinks Blinks Blinks Blinks Blinks Blinks Connect U,V,W phase leads to the 2 times 3 times 4 times 5 times 6 times 8 times Self･ power module again and operate the diagnosis Lamp air conditioner.
  • Page 96 +2: 72 23(5$7( 86,1* 7+( 6(59,&( 6:,7&+ 7+( 287'225 81,7 MODEL RAC-50FPA 7XUQ WKH SRZHU VZLWFK RII DQG WKHQ WXUQ RQ DJDLQ 5HPRYH WKH HOHFWULFDO SDUWV FRYHU /' UHG ZLOO OLJKW DQG WKH XQLW ZLOO RSHUDWH LQ WKH IRUFHG FRROLQJ PRGH DW WKLV WLPH 1HYHU RSHUDWH WKH XQLW 6HUYLFH VZLWFK LQ WKLV VWDWH IRU PRUH...

  • Page 97: Parts List And Diagram

    PARTS LIST AND DIAGRAM INDOOR UNIT MODEL: RAF -50RPA...
  • Page 98 MODEL RAF-50RPA HWRAF- - 50NX2 A14 #HBOARD-AS...
  • Page 99 OUTDOOR UNIT MODEL: RAC-50 F P A...
  • Page 100 MODEL RAC-50FPA...
  • Page 101 RAF-50RPA / RAC-50FPA HHAW NO. 0070E...

This manual is also suitable for:

Rac-50fpa

Table of Contents