Hitachi RAK-18RPD Manual
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TECHNICAL CATALOGUE
MONO SPLIT
RAK-18RPD
RAK-25RPD
RAK-35RPD
RAK-42RPD
RAK-50RPD
RAC-18WPD
RAC-25WPD
RAC-35WPD
RAC-42WPD
RAC-50WPD

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Table of Contents
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Summary of Contents for Hitachi RAK-18RPD

  • Page 1 TECHNICAL CATALOGUE MONO SPLIT RAK-18RPD RAC-18WPD RAK-25RPD RAC-25WPD RAK-35RPD RAC-35WPD RAK-42RPD RAK-50RPD RAC-42WPD RAC-50WPD...
  • Page 2 Specifications in this catalogue are subject to change without prior notice in order for HITACHI to bring in the latest innovations to their customers Whilst every effort is made to ensure that all dimensions and specifications are correct, any printers’...
  • Page 3: Table Of Contents

    CONTENTS CONTENTS CONTENTS __________________________________________________________________________________ SPECIFICATIONS ______________________________________________________________________ 1.1. WALL TYPE (RAK-18RPD/25RPD/35RPD) __________________________________________________ 1.2. WALL TYPE (RAK-42RPD/50RPD)_________________________________________________________ 1.3. WALL TYPE (RAC-18WPD/25WPD/35WPD) _________________________________________________ 1.4. WALL TYPE (RAC-42WPD/50WPD) ________________________________________________________ DIMENSIONAL DATA ___________________________________________________________________ 2.1. WALL TYPE: RAK-18RPD/25RPD/35RPD/42RPD/50RPD 2.2. WALL TYPE: RAC-18WPD/25WPD/35WPD __________________________________________________ 2.3. WALL TYPE: RAC-42WPD/50WPD_________________________________________________________ CAPACITIES TABLE ____________________________________________________________________ 3.1.
  • Page 4: Specifications

    NOTE: 1. The nominal cooling and heating capacity is the 2. The Sound Pressure Level is based on the following combined capacity of the HITACHI standard split conditions: system, and are based on the ISO 5151. 0.8 meter beneath indoor height center...
  • Page 5: Wall Type (Rak-42Rpd/50Rpd)

    NOTE: 1. The nominal cooling and heating capacity is the 2. The Sound Pressure Level is based on the following combined capacity of the HITACHI standard split conditions: system, and are based on the ISO 5151. 0.8 meter beneath indoor height center...
  • Page 6: Wall Type (Rac-18Wpd/25Wpd/35Wpd)

    SPECIFICATIONS 1.3. WALL TYPE (RAC-18WPD/25WPD/35WPD) OUTDOOR RAC-18WPD RAC-25WPD RAC-35WPD Nominal Cooling capacity (min - max) 2.00 (0.90 - 2.50) 2.50 (0.90 - 3.10) 3.50 (0.90- 4.00) Nominal Heating capacity (min - max) 2.50 (0.90 - 3.20) 3.40 (0.90- 4.40) 4.20 (0.90- 5.00) Nominal cooling power input (min - max) 0.419(0.25 - 1.01) 0.549(0.25 - 1.29)
  • Page 7: Wall Type (Rac-42Wpd/50Wpd)

    SPECIFICATIONS 1.4. WALL TYPE (RAC-42WPD/50WPD) OUTDOOR RAC-42WPD RAC-50WPD Nominal Cooling capacity (min - max) 4.20 (1.70- 5.00) 5.00 (1.90- 5.20) Nominal Heating capacity (min - max) 5.40 (1.7- 6.00) 6.00 (2.2- 7.30) Nominal cooling power input (min - max) 1.120(0.30 - 1.70) 1.471(0.30 - 2.10) Nominal heating power input (min - max) 1.317(0.50 - 2.10)
  • Page 8: Dimensional Data

    DIMENSIONAL DATA 2 DIMENSIONAL DATA 2.1. WALL TYPE :RAK-18RPD/25RPD/35RPD/42RPD/50RPD Narrow pipe(ø6.35) Wide pipe(ø9.52)RAK-18RPD/25RPD/35RPD Wide pipe(ø12.7)RAK-42RPD/50RPD...
  • Page 9: Wall Type: Rac-18Wpd/25Wpd/35Wpd

    DIMENSIONAL DATA 2.2. WALL TYPE :RAC-18WPD/25WPD/35WPD Handle Handle Air outlet Air Suction grill Rear side Holes for anchor bolt (2 – ø12 x 6 slots for ø8.0 bolt) Notch for anchor bolt (for 2 – ø8.0 bolt) Drain hole Fixing hole Drain hole...
  • Page 10: Wall Type:rac-42Wpd/50Wpd

    DIMENSIONAL DATA 2.3. WALL TYPE:RAC-42WPD/50WPD Unit : mm Drain hole Drain hole Drain hole...
  • Page 11: Capacities Table

    Conditions: ①Pipe length / height difference : 5m / 0m ③Capacity loss due to white frost and defrost operation is not included. ②Indoor fan speed at High mode 3.1.1. RAK-18RPD/RAC-18WPD COOLING [50Hz, 230V] INDOOR OUTDOOR TEMPERATURE (°CDW) °C °C...
  • Page 12: Rak-25Rpd/Rac-25Wpd

    CAPACITIES TABLE 3.1.2. RAK-25RPD/RAC-25WPD COOLING [50Hz, 230V] INDOOR OUTDOOR TEMPERATURE (°CDW) °C °C 12.0 1976 1523 311 2238 2030 370 2071 1874 436 2050 1866 505 1975 1784 527 1850 1681 565 1775 1599 14.0 1976 1523 311 2405 2030 370 2238 1894 441 2200 1866...
  • Page 13: Rak-42Rpd/Rac-42Wpd

    CAPACITIES TABLE 3.1.4. RAK-42RPD/RAC-42WPD COOLING [50Hz, 230V] INDOOR OUTDOOR TEMPERATURE (°CDW) °C °C 12.0 3320 2414 635 3760 3219 754 3480 2971 889 3444 2958 1030 3318 2828 1075 3108 2665 1154 2982 2535 1198 14.0 3320 2414 635 4040 3219 754 3760 3002...
  • Page 14: Correction Factors According To Piping Length

    CAPACITIES TABLE 3.2. CORRECTION FACTORS ACCORDING TO PIPING LENGTH Correction Factor for Cooling Capacity according to Correction Factor for Heating Capacity according to Piping Length Piping Length The cooling capacity should be corrected according to the The heating capacity should be corrected according to the following formula: following formula: CCA = CC x F...
  • Page 15 CAPACITIES TABLE Models : RAK-18RPD、RAK-25RPD、RAK-35RPD RAC-18WPD、RAC-25WPD、RAC-35WPD Pipe length (m) Pipe length (m) Models : RAK-42RPD、RAK-50RPD RAC-42WPD、RAC-50WPD Pipe length (m) Pipe length (m)
  • Page 16: Correction Factors According To Defrosting Operation

    CAPACITIES TABLE 3.3. CORRECTION FACTORS ACCORDING TO DEFROSTING OPERATION The heating capacity in the preceding paragraph, excludes the condition of the frost or the defrosting operation period. In consideration of the frost or the defrosting operation, the heating capacity is corrected by the equation below. Corrected heating capacity = Defrost Correction factor x unit capacity OUTDOOR TEMPERATURE (°CDB)
  • Page 17: Sound Data

    SOUND DATA 4 SOUND DATA 4.1. RAC-18WPD COOLING 90.0 NC-70 80.0 NC-65 NC-60 NC-55 70.0 NC-50 NC-45 NC-40 60.0 NC-35 NC-30 NC-25 50.0 46.5 NC-20 45.1 44.6 43.0 NC-15 39.6 40.0 35.9 29.9 30.0 25.5 20.0 10.0 1000 2000 4000 8000 Octave band main wave length (Hz) HEATING...
  • Page 18: Rac-25Wpd

    SOUND DATA 4.2. RAC-25WPD COOLING 90.0 NC-70 80.0 NC-65 NC-60 NC-55 70.0 NC-50 NC-45 NC-40 60.0 NC-35 NC-30 NC-25 49.1 47.9 50.0 46.7 NC-20 45.8 NC-15 40.4 40.0 36.2 30.1 30.0 24.2 20.0 10.0 1000 2000 4000 8000 Octave band main wave length (Hz) HEATING 90.0 NC-70...
  • Page 19: Rac-35Wpd

    SOUND DATA 4.3. RAC-35WPD COOLING 90.0 NC-70 80.0 NC-65 NC-60 NC-55 70.0 NC-50 NC-45 NC-40 60.0 NC-35 NC-30 NC-25 49.6 50.0 NC-20 46.0 44.7 43.6 NC-15 40.0 40.0 35.8 28.9 30.0 21.7 20.0 10.0 1000 2000 4000 8000 Octave band main wave length (Hz) HEATING 90.0 NC-70...
  • Page 20: Rac-42Wpd

    SOUND DATA 4.4. RAC-42WPD COOLING 90.0 NC-70 80.0 NC-65 NC-60 NC-55 70.0 NC-50 NC-45 NC-40 60.0 NC-35 NC-30 51.9 NC-25 48.9 50.0 46.3 NC-20 45.0 NC-15 42.0 37.5 40.0 30.8 30.0 25.7 20.0 10.0 1000 2000 4000 8000 Octave band main wave length (Hz) HEATING 90.0 NC-70...
  • Page 21: Rac-50Wpd

    SOUND DATA 4.5. RAC-50WPD COOLING 90.0 NC-70 80.0 NC-65 NC-60 NC-55 70.0 NC-50 NC-45 NC-40 60.0 NC-35 NC-30 50.4 NC-25 48.8 47.2 50.0 NC-20 45.4 NC-15 41.2 38.0 40.0 31.3 30.0 24.4 20.0 10.0 1000 2000 4000 8000 Octave band main wave length (Hz) HEATING 90.0 NC-70...
  • Page 22: Working Range

    WORKING RANGE WORKING RANGE 5.1. POWER SUPPLY Working Voltage 207V ~ 253V Within a 3% Deviation from Each Voltage at the Main Terminal of Voltage Imbalance Outdoor Unit Starting Voltage Higher than 85% of the Rated Voltage 5.2. WORKING RANGE Applicable models: RAC-18WPD RAC-25WPD...
  • Page 23: Electrical Data

    ELECTRICAL DATA ELECTRICAL DATA 6.1. INDOOR UNIT Unit Main Power Applicable Current Indoor Fan Motor Model VOL, PH, Hz Fuse Rating (A) RAK-18RPD 230,1,50 3.15 (C)2.46(H)2.93 (C)4.39(H)4.22 0.67 RAK-25RPD 230,1,50 3.15 (C)3.08(H)3.87 (C)5.61(H)6.52 0.67 RAK-35RPD 230,1,50 3.15 (C) 4.81 (H)4.20 (C)...
  • Page 24: Wiring Diagram

    WIRING DIAGRAM 7 WIRING DIAGRAM 7.1. RAK-18RPD/25RPD/35RPD/42RPD/50RPD...
  • Page 25: Rac-18Wpd/25Wpd/35Wpd

    WIRING DIAGRAM 7.2. RAC-18WPD/25WPD/35WPD...
  • Page 26: Rac-42Wpd/50Wpd

    WIRING DIAGRAM 7.3. RAC-42WPD/50WPD...
  • Page 27: Refrigerant Cycle

    REFRIGERANT CYCLE REFRIGERANT CYCLE 8.1. WALL TYPE:RAK-18RPD/RAC-18WPD、RAK-25RPD/RAC-25WPD、RAK-35RPD/RAC-35WPD Silencer Silencer 8.2. WALL TYPE:RAK-42RPD/RAC-42WPD、RAK-50RPD/RAC-50WPD Silencer Silencer Silencer...
  • Page 28: Control And Function

    CONTROL AND FUNCTION 9 CONTROL AND FUNCTION 9.1. WIRELESS REMOTE CONTROL FUNCTION REMOTE CONTROLLER TYPE RAR-6N1 RAK-18RPD RAK-25RPD RAK-35RPD RAK-42RPD RAK-50RPD...
  • Page 29 CONTROL AND FUNCTION BUTTONS FUNCTION MODE Selector Use this button to select the operations mode. Every time you press this button, the mode will change from cyclically. FAN SPEED Selector Button This determines the fan speed. Every time you press this button, the airflow rate will change from (This button allows selection of optimal or preferred fan speed for each operation mode).
  • Page 30: Auto Changeover

    CONTROL AND FUNCTION 9.2. AUTO CHANGEOVER COOLING/HEATING mode is decided by the room temperature. COOLING/HEATING mode is decided during the COOLING/HEATING mode is decided in initial startup of Automatic Operation intervals after the initial startup of Automatic Initial startup of Automatic Operation means the Operation (also known as Auto Changeover following either condition: function)
  • Page 31: Operation Lock

    CONTROL AND FUNCTION NOTE: There are total of 7 shift values ranging from -3 to 3. The displayed shift value, symbol on the remote controller display will be disappear after 10 seconds The changed shift value will remain unchanged after turned off the power. If “0”...
  • Page 32: Intermittent Fan Speed Setting

    CONTROL AND FUNCTION 9.6. INTERMITTENT FAN SPEED SETTING The intermittent fan control during thermo off in Heating Mode can be changed by the remote controller. (This procedure should be done only by service personnel.) It is possible to select from 3 patterns. PROCEDURE Press [START/STOP] button,...
  • Page 33: Fan Speed Setting In Thermo Off In Cooling

    CONTROL AND FUNCTION 9.7. FAN SPEED SETTING IN THERMO OFF IN COOLING The fan speed in Cooling Mode during thermo off can be changed by the remote controller. (This procedure shall be implemented strictly by service personnel only.) It is possible to return it to the default setting. PROCEDURE Press [POWERFUL] button and...
  • Page 34: Error Code Information

    CONTROL AND FUNCTION 9.8. ERROR CODE INFORMATION In case failure occurs to the air conditioner, by pressing (INFO) button, an error code will be displayed. Direct the remote controller towards the receiver of indoor unit (within 2 meters in from of indoor unit) and press (INFO) button.
  • Page 35: Additional Function Via Dip-Switch Settings

    CONTROL AND FUNCTION 9.9. ADDITIONAL FUNCTION VIA DIP-SWITCH SETTINGS A new DIP Switch is available on the PWBs of the indoor unit that provide additional functions via the settings on the switches. Air conditioner Indoor PWB ↕ DIP SW Label 9.9.1.
  • Page 36: Option List

    CONTROL AND FUNCTION 10 OPTION LIST 10.1. WIRED REMOTE CONTROL – SPX-RCDB BUTTONS FUNCTION MODE Selector Use this button to select the operationg mode. Every time you press this button, the mode will change from cyclically. FAN SPEED Selector Button This determines the fan speed.
  • Page 37: Error Code Information

    OPTION LIST 10.1.2. ERROR CODE INFORMATION In case failure occurs to the air conditioner, the error code will constantly appear on the wired remote controller display. TIMER LD301 LAMP CODE MEANING BLINKING BLINKING Normal Refrigerant cycle fault 1 time 2 times Outdoor unit is under forced operation Communication error between indoor and outdoor 3 times...
  • Page 38 OPTION LIST TIMER LD301 LAMP CODE MEANING BLINKING BLINKING 4 times 6 times OH thermistor temperature rise 4 times 7 times Abnormal outdoor thermistor 4 times 9 times Communication error 4 times 10 times Abnormal power source 4 times 11 times Fan stop for strong wind 4 times 12 times...
  • Page 39: H-Link Adaptor - Psc 6Rad

    Install RAC adaptor in the vertical surface as shown connection by yourself. Contact your distributor or below. dealer of HITACHI and ask then for installation work and electrical wiring by service person. The specified Upper side cable should be used to connect (i) room air conditioner and adaptor, and (ii) controller and adaptor.
  • Page 40: Electrical Wiring

    DO NOT touch the adhesive part by fingers nor re- – attach it many times. The adhesiveness has decreased HITACHI and the RAC adaptor may fall off. PSC 6RAD DO NOT apply any force within 24 hours after –...
  • Page 41: Dip Switch Setting

    OPTION LIST iii) Install the electrical box cover paying attention not to clamp the cable. Read the installation CAUTION: manual of each room air-conditioner for DO NOT turn ON various pins of DSW1 and DSW2 – confirming how to connect and how to Set the refrigerant cycle# by RSW1 and DSW1 assemble the cable of the RAC adaptor.
  • Page 42: Test Run

    OPTION LIST Terminating resistance is set in whole H-LINK system. Indoor Unit# If H-LINK connecting devices like package air- conditioner are connected besides the RAC Adaptor, set the terminating resistance by those connecting devices. The terminating resistance should be set ON in only one position in whole H- LINK system.
  • Page 43: Dry Contact (Spx-Wdc3) Application (Using Dip Switch)

    OPTION LIST 10.3. DRY CONTACT (SPX-WDC3) APPLICATION (USING DIP SWITCH) The dry contact system enables the operation of the air conditioner indoor unit to be controlled by using external dry contacts (with non voltage) such as card-key controller or window for facilities such as hotels. Note: Op onal Connec ng cord Accessory SPX-WDC3 AUTO RESTART function set to "Enable"...
  • Page 44 OPTION LIST Example of wiring connection to Card Key Unit will be as below (reference only) CARD KEY UNIT (Prepared by INSTALLER) AIR CONDITIONER INDOOR PCB ② Contact with sleeve Dry contact Card sensor indicator DIP SW (DSW1) POWER ① Connecting Cord to PCB: SUPPLY SPX-WDC3 •...
  • Page 45: Distributor - Spx-Dst1

    OPTION LIST 10.4. DISTRIBUTOR – SPX-DST1 The optional distributor is to be used together with the wired remote controller when there is a need to centralize the control of multiple indoor units using only a single wired remote controller. A single distributor could be connected further to 3 separate distributors so that up to 13 units of indoor could be controlled by a single wired remote controller.
  • Page 46 TC-ERP-Model (2018.01) INDOOR OUTDOOR RAC-18WPD RAK-18RPD RAC-25WPD RAK-25RPD RAK-35RPD RAC-35WPD RAK-42RPD RAC-42WPD RAK-50RPD RAC-50WPD...

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