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Hitachi RAC-50NPD, Service Manual

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Hitachi RAC-50NPD Service Manual Download Page 14

Summary of Contents for RAC-50NPD

Page 1: ...60NPD After installation WIRELESS REMOTE CONTROLLER SPX RCKA1 WIRED REMOTE CONTROLLER SPX RCDA WIRED REMOTE CONTROLLER SPX WKT3 For SPX WKT3 Please refer to it s own manual OPTIONAL RAC 50NPD RAC 60NPD W A kW B T U h W A kW B T U h W H D kg DUCT TYPE TYPE MODEL POWER SOURCE TOTAL INPUT TOTAL AMPERES CAPACITY TOTAL INPUT TOTAL AMPERES CAPACITY DIMENSIONS mm NET WEIGHT SPECIFICATIONS COOLING INDOOR ...

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Page 8: ...se for the indoor piping commercial product The indoor piping should be insulated with the enclosed insulation pipe If the insulator is insufficient please use commercial products Be sure to completely seal any gap with putty above 100mm above 300mm about 400mm must not bend Maximum pipe length 30m Minimum pipe length 3m above 200mm above 100mm give clearance as wide as possible above 100mm above ...

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Page 18: ...RAR 6N1 RAR 6N2 RAR 6N3 RAR 6N4 RAR 6N5 ECO ECO ECO ECO ECO ...

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Page 28: ...emote controller display begins to fade and degradation of reception performance occurs within a year replace both batteries with new size AAA LR03 alkaline The usable period of the batteries may be short depending on the manufactured date of the air conditioner Notes on the remote controller Never expose the remote controller to direct sunlight Dust on the signal transmitter or receiver will redu...

Page 29: ... 2 Direct remote controller towards indoor unit and press INFO button 3 The calendar and clock from indoor unit will be transmitted Calendar and clock will not be transmitted from indoor unit when the following occurs When there is a power failure When breaker is OFF by user unit is not in STANDBY MODE NOTE Note on setting the calendar and clock If the calendar and clock are not set the ON timer O...

Page 30: ... button the LCD will turn on The LCD will not turn off during TIMER setting Signal Transmitting Receiving Window Point this window towards the indoor unit when controlling it Sensor A temperature sensor inside the remote controller senses ambient temperature around the remote controller Display This indicates the room temperature selected current time timer status function and airflow rate selecte...

Page 31: ...e this button to set the POWERFUL mode p 11 INFORMATION Button p 25 ONE TOUCH CLEAN Button p 15 ON OFF TIMER setting Buttons p 16 MODE selector Button Use this button to select the operating mode Every time you press this button the mode will change from AUTO HEAT DEHUMIDIFY COOL and FAN cyclically SILENT Button Use this button to set the SILENT mode p 12 WEEKLY TIMER setting Buttons p 19 LEAVE HO...

Page 32: ... is set As the settings are stored in the memory of the remote controller you only have to press the START STOP button next time Press the MODE selector button so that the display indicates the AUTO mode of operation When AUTO has been selected the device will automatically determine the mode of operation HEAT or COOL depending on the current room temperature However the mode of operation will not...

Page 33: ...n to stop operation As the settings are stored in the memory of the remote controller you only have to press the START STOP button next time During AUTO fan the fan speed automatically changes as below When the difference between room temperature and setting temperature is large fan starts to run at HI speed After room temperature reaches the preset temperature fan speed will be changed to lower s...

Page 34: ...with the ROOM TEMPERATURE setting buttons the display indicates the setting The range of 20 26 C is recommended as the room temperature for dehumidifying Temperature range can be set between 16 C and 32 C Press the START STOP button Dehumidifying operation starts with a beep Press the button again to stop operation As the settings are stored in the memory of the remote controller you only have to ...

Page 35: ...ower speed to obtain optimum room tempera ture condition for natural healthy cooling START STOP 1 2 3 Set the desired FAN SPEED with the FAN SPEED button the display indicates the setting AUTO HIGH MED SILENT LOW Set the desired room temperature with the TEMPERATURE buttons the display indicates the setting The temperature setting and the actual room temperature may vary depending on conditions Te...

Page 36: ...ss the MODE selector so that the display indicates FAN Set the desired FAN SPEED with the FAN SPEED button the display indicates the setting HIGH MED LOW SILENT Press the START STOP button Fan operation starts with a beep Press the button again to stop operation 3 262 pdf 8 3 12 15 9 50 AM ...

Page 37: ...evious settings used before POWERFUL operation Press the START STOP button Or Press POWERFUL button again POWERFUL operation stops disappears from the LCD 1 NOTE When SLEEP mode ECO mode SILENT mode or LEAVE HOME mode is selected POWERFUL operation is cancelled During POWERFUL operation capacity of the air conditioner will not increase if the air conditioner is already running at maximum capacity ...

Page 38: ...utton again or FAN SPEED button Fan speed will return to previous fan speed before SILENT operation starts SILENT operation stops disappears from the LCD 1 NOTE When POWERFUL operation is selected SILENT operation is cancelled Fan speed will return to previous fan speed before SILENT operation After auto restart SILENT operation is cancelled Fan speed will return to previous fan speed before SILEN...

Page 39: ...t temperature higher or lower automatically and reducing operation power consumption This function may vary based on the connected outdoor unit Press START STOP button Or Press ECO button again disappears from the LCD A beep sound is emitted from indoor unit NOTE ECO function will not be effective when power consumption is low By pressing POWERFUL button ECO operation is cancelled After auto resta...

Page 40: ... 39 3 262 pdf 12 3 12 15 9 50 AM ...

Page 41: ...eration HEATING or FAN operation shall operate During one touch clean operation lamp is blinking is displayed on the LCD Press START STOP button Or Press CLEAN button again 1 NOTE When CLEAN operation finish unit will switch OFF automatically If Weekly Timer or Once Timer is set there is a need to cancel those timer before operating CLEAN function For multi model connections when pressing CLEAN bu...

Page 42: ...ing operations 1 Press OFF TIMER button so that and blink on the dis play 2 Set the turn off time with TIME button After setting direct the remote controller towards the indoor and press SEND button 3 Press ON TIMER button so that and set turn off time light up The and blink 4 Set the turn on time with TIME button 5 After setting direct the remote controller towards the indoor and press SEND butto...

Page 43: ...t and the TIMER lamp on the indoor unit lights up Pressing SLEEP button repeatedly the number of hours will change as below During ECO SLEEP TIMER operation air conditioner will continue to operate for the designated number of hours and then turn off When the ECO SLEEP TIMER has been set the display on the remote controller indicates the turn off time Press START STOP button Room air conditioner w...

Page 44: ...ing ECO SLEEP TIMER set temperature will be slightly shifted Amount of temperature shifted depends on type of air conditioner These automatic operation changes contribute to energy saving without losing comfort The level of energy consumption depends on outside temperature room temperature set temperature or air conditioner type Cooling operation diagram representation for illustrative purpose onl...

Page 45: ... program no 1 ON OFF setting time and setting temperature blink on the display 3 Select the desired day of the week Press DAY button The day changes from Mon Tue Wed Thu Fri Sat Sun Mon Tue Wed Thu Fri Sat Sun Full days Mon Tue Wed Thu Fri weekday Sat Sun weekend Mon Tue Select Full days for daily reservation Select weekday for Monday to Friday reservation Select weekend for Saturday and Sunday re...

Page 46: ...e reservation contents will appear on the remote controller display If TIMER lamp on the indoor unit does not light up press SEND button while directing the remote controller towards the indoor unit for about 3 seconds CAUTION Do not press CANCEL button during reservation setting because this will result in all reservation contents to be lost The reservation contents will not stored in the indoor ...

Page 47: ...unit and press CANCEL button Beep sound will be emitted from indoor unit and TIMER lamp will be OFF Reservation indication on remote display will also disappear This indicates that non active WEEKLY TIMER has been confirmed To activate back the setting of WEEKLY TIMER repeat the steps for How to select Mode A or Mode B of WEEKLY TIMER setting NOTE When setting ONCE TIMER operation of WEEKLY TIMER ...

Page 48: ...e to paste only blinks on the display 7 To continue copying to other days press or or or Then start from step 3 8 After copy and paste completed press SEND button while directing the remote controller towards the indoor unit for about 3 seconds Timer lamp on the indoor unit will blink rapidly After beep sound emitted from indoor unit TIMER lamp will light up Please ensure that the TIMER lamp light...

Page 49: ...t program number Selected program number will blink 5 Press DELETE button Reservation of selected program num ber is deleted 6 After deleting press SEND button while directing the remote controller towards the indoor unit for about 3 seconds Timer lamp on the indoor unit will blink rapidly After beep sound emitted from indoor unit TIMER lamp will light up Please ensure that the TIMER lamp lights u...

Page 50: ...l blink rapidly After beep sound emitted from indoor unit TIMER lamp will light up Please ensure that the TIMER lamp lights up Reservation will not change if SEND button is not pressed 1 1 2 NOTE If all reservations in the remote controller were deleted and pressed SEND button no signal will be transmitted to indoor unit TIMER lamp will remain off and no changes will be done to the reservations st...

Page 51: ...t for 2 seconds for signal transmission While temperature around remote controller is displayed press INFO button repeatedly The display will show as below thismonthpowerconsumptionamountforheating lastmonthpowerconsumption amount for heating this month power consumption amount for cooling last month power consumption amount for cooling temperature around remote controller this month power consump...

Page 52: ...ILENT buttons simultaneously for about 5 seconds when the remote controller is OFF and will be displayed for about 10 seconds Later and will remain This indicates that COOLING and DEHUMIDIFYING mode operation is locked When pressing MODE button or will be displayed Method to unlock COOLING and DEHUMIDIFYING modes including FAN operations Press ECO and SILENT buttons simultaneously for about 5 seco...

Page 53: ...hould be used for both the narrow and wide dia pipes 3 Piping length is within 30m 4 Height different of the piping between the indoor unit and the outdoor unit should be within 10m 5 Connecting cable 2 5mm dia x 3 LN Line 1 5mm dia x 4 is used for the connection CONSTRUCTION AND DIMENSIONAL DIAGRAM MODEL RAD 50PPD RAD 60PPD Indoor Unit Outdoor Unit Connecting cord Power cord ...

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Page 55: ...NPD RAC 60NPD 956 750 850 25 81 738 Air Outlet 20 298 351 34 221 95 167 Handle 53 169 Handle Air suction grille 57 340 12 37 198 507 10 10 320 Notch for anchor bolt 2 Ø12 Notchs Holes for anchor bolt 2 Ø12 Fixing hole ...

Page 56: ...0PPD THERMOSTAT MODEL IC OPERATION MODE COOL HEAT ON 15 6 60 1 20 0 68 0 OFF 15 3 59 5 20 7 69 3 ON 23 6 74 5 28 0 82 4 OFF 23 3 73 9 28 7 83 7 ON 31 6 88 9 36 0 96 8 OFF 31 3 88 3 36 7 98 1 MODEL RAD 50PPD RAD 60PPD POWER SOURCE DC 310V DC120 380V OUTPUT 180W Control circuit built in BLU BLUE YEL YELLOW BRN BROWN WHT WHITE GRY GRAY ORN ORANGE GRN GREEN RED RED BLK BLACK PNK PINK VIO VIOLET RAC 50...

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Page 58: ...RN1 GRN2 GRN3 GRN YEL CONNECTION TO INDOOR UNIT GRN YEL POWER SOURCE DRIVE CIRCUIT 1 2 3 P N 6 CN27 WHT SELF CHECK MAIN P W B 11 1 2 3 4 3 15A FUSE C112 Ｍ M HEX THERMISTOR CN3 CN2 BLU DRAIN PUMP MOTOR JOINT CONNECTOR TERMINAL BOARD CONNECTING CORD ３ １ 1 3 BLK WHT RED VA02 VA01 u u u VA03 C108 C109 L101 1 2 DRAIN PUMP RELAY NF1 C116 C113 L102 GRN1 1 RECEIVER INDICATION P W B CN16 1 2 CN1 1 4 MOTION...

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Page 61: ... GRN R A B M 146 LD200 SIR 34ST3F H B H 10 PHOTO COUPLER SYM MODEL FORM GROUP PCBA ASS NO REMARK PC102 LTV 817S TA1 S A B M 107 RREG5797 PC103 LTV 817S TA1 S A B M 107 RREG5797 PC104 LTV 817S TA1 S A B M 107 RREG5797 PC105 LTV 817S TA1 S A B M 107 RREG5797 PC1101 LTV 817S TA1 S A B M 107 RREG5797 PC1102 LTV 817S TA1 S A B M 107 RREG5797 SWITCH SYM MODEL FORM GROUP PCBA ASSY NO REMARK SW501 KSD62 H...

Page 62: ... C HIC C HIC C HIC C HIC C HIC A A A A A A A A A A A A C HIC B C HIC C HIC A A C HIC C HIC C HIC C HIC C HIC C HIC C HIC C HIC C HIC C HIC A A A A A A A A A A C HIC A C HIC A C HIC A C HIC A C HIC A C C HIC B 55 C C HIC B C C HIC B C C HIC B C C HIC C C HIC B A 55 55 C C HIC A C C HIC C C HIC C C HIC C C HIC C C HIC C C HIC C C HIC 55 55 B B B B A A A C C C C C C C C HIC HIC HIC HIC B B A 55 55 55...

Page 63: ... H C 500 D H M 15 F H I 0 1 AFP C R M AC Murata C R M AC Murata C R M AC Murata F H M AC LE MX 70 C R M 0 01 AC Murata C R M 0 01 AC Murata C R M 0 01 AC Murata C R M 0 01 AC Murata C A M 100p CH Spec 50 C A M 100p CH Spec 50 D R M 100 NICHICON VR R Spec C R M DC C R M DC E Spec C R M DC 0 01 C A M 50 C A M 50 C C M 50 B CH Spec 100p D H M 55 C C M 50 B CH Spec CH Spec CH Spec CH Spec CH Spec CH S...

Page 64: ... 47 RAD 50PPD RAD 60PPD ...

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Page 68: ... 71 RAD 50PPD RAD 60PPD RAC 50NPD RAC 60NPD ...

Page 69: ...RAD 50PPD RAD 60PPD 73 ...

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Page 72: ... 2 The indoor fan is operated in the Lo or Silent mode During thermo OFF indoor fan will be OFF 5 minutes and ON for 1 minute Lo Silent 77 ...

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Page 77: ...NOFTM MANOF2 MNONTM MANON1 Human detection mode start Base setting Temp Base setting Temp MANSFTC1 Base setting Temp MANSFTC2 MNSFTM Absent flag MANOF1 Absent Time 2 In the room period No signal Notes 1 ECO and POWERFUL cannot operate at the same time 2 ECO is not available during FAN operation Base setting Temp MANSFTW1 Base setting Temp MANSFTW2 Heating Count down Count down Cooling No signal 82...

Page 78: ...VALVE 12 7mm 2 4 2S VALVE 6 35mm 1 4 ELECTRIC EXPANSION VALVE STRAINER HEX THERMISTOR RAD 50PPD RAC 50NPD RAD 60PPD RAC 60NPD COOLING DEHUMIDIFYING DEFROSTING OUTDOOR UNIT INDOOR UNIT COMP SUCTION TANK REVERSING VALVE 4S VALVE 12 7mm 2 4 2S VALVE 6 35mm 1 4 ELECTRIC EXPANSION VALVE STRAINER HEX THERMISTOR REFRIGERATING CYCLE DIAGRAM 83 ...

Page 79: ... 84 RAD 50PPD RAD 60PPD DB1 ...

Page 80: ... 85 3 6 IC733 69 69 3 6 3 5 69 ...

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Page 82: ... 87 Outdoor microcomputer Outdoor reception input Outdoor transmission output 1 26 Q203 Outdoor transmitting circuit Outdoor reception circuit R004 C802 C803 C804 R804 L801 R801 R803 R802 R806 F5 ...

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Page 84: ... 89 89 9 R621 ...

Page 85: ... 90 62 IC733 7 10 62 8 ...

Page 86: ... 91 NORMAL MEDIUM HIGH 64 52 52 64 ...

Page 87: ... 92 5V 0V R282 R297 R281 74 82 84 73 ...

Page 88: ... 93 12 12 1 12 1 12 2 ...

Page 89: ...RAC 50NPD RAC 60NPD 94 ...

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Page 92: ...n in the different operation mode You can see each operation mode as follows If the reversing valve not connected or all the condition not the same as follow it may be something wrong with the reversing valve circuit ooerat1on mode micon pin OV HIC pin OV CN2G CN2 Cooling Usual cooling Hi OV ov Heating Usual heating Lo 12V AC240V Defrost Hi ov ov r P W BMAIN SK1 0 RL3 AC240V CD 12V P W BHIC RL3 co...

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Page 106: ... OUTDOOR NOT FUNCTIONAL CHECK WIRING CONNECTION BETWEEN INDOOR AND OUTDOOR HOW TO REPAIR THIS SHOW AN OVERLOAD NOT MALFUCTION COMPRESSOR OPERATION BLINKING DURING OVERLOAD 0 3SEC LIGHTS FOR 2 SEC AT INTERVAL OF 0 3 SEC LD301 RED FAN MODE OPERATION RESET STOP 1 NO NEED TO CHECK 1 NOT ANY MALFUNCTION 1 WAITING FOR COMPRESSOR START 2 OTHER THAN ABOVE 1 NORMAL 2 CHANGE THE P W B s 1 P W B s DEFECTIVE ...

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Page 126: ...an 7 No nNormal Abnormal Check the fan motor for loose Insert the connector connectors Normal Af t er restarting the product will The LD301 blinks 11 times Yes 1 s t h_e_w _ i_ n _ d t o_o_s t r o ng run continuously 1 It is a pause due to a strong wind As the wind q Check if the product can restart all c F t d d t t d weakens the product will start again right It takes several minutes for an s op...

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Page 129: ...RAR 5E1 RAR 5E2 RAR 5E3 RAR 5E4 RAR 5E5 RAR 6N1 RAR 6N2 RAR 6N3 RAR 6N4 and RAR 6N5 134 ...

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Page 135: ...HT BLK wire of fan motor side of multimeter probe to Terminal N R741 leg side of multimeter probe shall be around 160V Checking all the fuse continuity There are 5 fuses inside the MAIN P W B 1 Power off the unit 2 Check the continuity of below fuse a F1 25A b F5 3 15A c F6 3 15A d F3 3A e F4 2A Checking the power source 1 Power ON the unit 2 Check the AC voltage from power source between terminal...

Page 136: ...PARTS LIST AND DIAGRAM INDOOR UNIT MODEL RAD 50PPD RAD 60PPD 2 10 1 3 4 15 4 3 5 6 9 8 9 9 12 11 9 7 14 2 16 13 141 ...

Page 137: ... 008 1 BAND L 6 PMRAD 50DH7 009 1 BAND R 7 PMRAD 50DH7 010 1 DRAIN PUMP 8 PMRAD 50DH7 011 1 FILTER 9 PMRAD 50DH7 012 2 FILTER PLATE 10 PMRAD 50DH7 013 1 THERMISTOR SUPPORT 11 PMRAD 50DH7 014 1 ROOM THERMISTOR 12 PMRAD 50DH7 015 1 THERMISTOR 13 PMRAD 50PPD R01 1 P W B MAIN 14 PMRAD 50PPD R02 1 CYCLE ASSY 15 PMRAD 50PPD R03 1 FAN MOTOR 16 PMRAD 50PPD R04 1 3P TERMINAL PART NUMBER 142 ...

Page 138: ... 008 1 BAND L 6 PMRAD 50DH7 009 1 BAND R 7 PMRAD 50DH7 010 1 DRAIN PUMP 8 PMRAD 50DH7 011 1 FILTER 9 PMRAD 50DH7 012 2 FILTER PLATE 10 PMRAD 50DH7 013 1 THERMISTOR SUPPORT 11 PMRAD 50DH7 014 1 ROOM THERMISTOR 12 PMRAD 50DH7 015 1 THERMISTOR 13 PMRAD 60PPD R01 1 P W B MAIN 14 PMRAD 50PPD R02 1 CYCLE ASSY 15 PMRAD 50PPD R03 1 FAN MOTOR 16 PMRAD 50PPD R04 1 3P TERMINAL PART NUMBER 143 ...

Page 139: ...11 20 13 23 2 1 24 30 10 27 29 6 8 9 5 22 21 16 15 18 17 19 26 3 4 28 12 25 7 31 14 PART LIST AND DIAGRAM OUTDOOR UNIT MODEL RAC 50NPD RAC 60NPD 144 ...

Page 140: ...HERMISTOR SUPPORT STRAINER COND REVERSING VALVE D GRILL TERMINAL BOARD 5P SIDE PLATE R SV COVER ASSY CABINET THERMISTOR OUTSIDE TEMPERATURE IPM BOARD EXPANSION VALVE P W B MAIN RAC 50NPD VALVE 4S PMRAC 50NPD S01 PMRAC 50NPD S02 PMRAC X13CX 906 PMRAM 53NP2B S10 PMRAM 65QHA4 S12 PMRAM 72Q9 S05 PMRAM 72Q9 S08 PMRAM 90NP5B S09 PMRAC S18CPA S02 PMRAC 80YHA S14 PMRAC 70YHA S07 PMRAC 60YHA4 S04 PMRAC 60Y...

Page 141: ...HERMISTOR SUPPORT STRAINER COND REVERSING VALVE D GRILL TERMINAL BOARD 5P SIDE PLATE R SV COVER ASSY CABINET THERMISTOR OUTSIDE TEMPERATURE IPM BOARD EXPANSION VALVE P W B MAIN RAC 60NPD VALVE 4S PMRAC 50NPD S01 PMRAC 60NPD S01 PMRAC X13CX 906 PMRAM 53NP2B S10 PMRAM 65QHA4 S12 PMRAM 72Q9 S05 PMRAM 72Q9 S08 PMRAM 90NP5B S09 PMRAC S18CPA S02 PMRAC 80YHA S14 PMRAC 70YHA S07 PMRAC 60YHA4 S04 PMRAC 60Y...

Page 142: ...HITACHI RAD 50PPD RAC 50NPD RAD 60PPD RAC 60NPD PM NO O629E Printed in Malaysia ...

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