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HITACHI 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’...
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...
DIMENSIONAL DATA 2 DIMENSIONAL DATA 2.1. WALL TYPE: RAK-18RPB/25RPB Top air suction grille Front panel Cabinet Mounting plate Horizontal air deflector Air outlet Drain When piping is drawn from the left side, exchange the drain hose and the drain cap. Drain cap connection port Drain hose About...
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-18RPB/RAC-18WPB COOLING [50Hz, 230V] INDOOR OUTDOOR TEMPERATURE (°CDB) EWB EDB °C °C...
Units in Meters Actual One-Way Piping Length Between Indoor Unit and Outdoor Unit in Meters Equivalent Total Distance Between Indoor Unit and Outdoor Unit in Meters (Equivalent One-Way Piping Length) Models : RAK-18RPB/RAC-18WPB, RAK-25RPB/RAC-25WPB Pipe length (m) Pipe length (m)
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)
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-18WPB RAC-25WPB RAC-35WPB RAC-50WPB The temperature range is indicated in the following table. Cooling Heating...
CONTROL AND FUNCTION 9 CONTROL AND FUNCTION 9.1. WIRELESS REMOTE CONTROL FUNCTION REMOTE CONTROLLER TYPE RAR-6N1 RAR-6N2 RAK-35RPB RAK-18RPB RAK-50RPB RAK-25RPB...
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CONTROL AND FUNCTION 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. 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).
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)
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”...
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,...
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 [TIME ∧(UP)] button sim ultaneously for about 5 seconds when the rem ote Press...
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.
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CONTROL AND FUNCTION LD301 Lit TIMER LAMP BLINKING CODE MEANING LD302 BLINKING 4 times 1 times Overheat thermostat 4 times 2 times Defrost thermostat 4 times 3 times Outdoor temperature thermostat 4 times 4 times Narrow pipe thermostat (indoor 1) 4 times 5 times Wide pipe thermostat (indoor 1)
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 Pin No.
OPTION LIST 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. 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).
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...
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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 8 times Accelaration defective 4 times 9 times Communication error 4 times 10 times Abnormal power source 4 times 11 times...
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OPTION LIST LD301 Lit TIMER LD302 LAMP CODE MEANING BLINKING BLINKING 4 times 3 times Outdoor temperature thermostat 4 times 4 times Narrow pipe thermostat (indoor 1) 4 times 5 times Wide pipe thermostat (indoor 1) 4 times 6 times Narrow pipe thermostat (indoor 2) 4 times 7 times...
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.
– 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 installation.
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.
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.
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: Optional Connecting cord Accessory SPX-WDC3 1) DRY CONTACT function is "Enable"...
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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 •...
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.