Table of Contents
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SERVICE MANUAL
PRIMAIRY
LARGE SINGLE SPLIT
DC-INVERTER
SERIES
INDOOR UNITS
MODELS
DUCTED
CASSETTE
RPIL-3.0UFE1NH
RCI-3.0UFE1NH
RPIH-3.5UFE1NH
RCI-3.5UFE1NH
RPIH-4.0UFE1NH
RCI-4.0UFE1NH
RPIH-5.0UFE1NH
RCI-5.0UFE1NH
RPIH-6.0UFE1NH
RCI-6.0UFE1NH
RPIH-6.5UFE1NH
RCI-6.5UFE1NH
OUTDOOR UNITS
MODELS
RAS-3.0UFESNH1
RAS-3.5UFESNH1
RAS-4.0UFESNH1
RAS-5.0UFESMH1
RAS-6.0UFESMH1
RAS-6.5UFESMH1
RAS-5.0UFESNH1
RAS-6.0UFESNH1
HS2019324HB
SM)-200313
FLOOR CEILING
RPFC-3.0UFE1NH
RPFC-3.5UFE1NH
RPFC-4.0UFE1NH
RPFC-5.0UFE1NH
RPFC-6.0UFE1NH
RPFC-6.5UFE1NH
Table of Contents
Related Manuals for Hitachi RPIL-3.0UFE1NH
Summary of Contents for Hitachi RPIL-3.0UFE1NH
- Page 1 – SERVICE MANUAL PRIMAIRY LARGE SINGLE SPLIT DC-INVERTER SERIES INDOOR UNITS MODELS DUCTED CASSETTE FLOOR CEILING RPIL-3.0UFE1NH RCI-3.0UFE1NH RPFC-3.0UFE1NH RPIH-3.5UFE1NH RCI-3.5UFE1NH RPFC-3.5UFE1NH RPIH-4.0UFE1NH RCI-4.0UFE1NH RPFC-4.0UFE1NH RPIH-5.0UFE1NH RCI-5.0UFE1NH RPFC-5.0UFE1NH RPIH-6.0UFE1NH RCI-6.0UFE1NH RPFC-6.0UFE1NH RPIH-6.5UFE1NH RCI-6.5UFE1NH RPFC-6.5UFE1NH OUTDOOR UNITS MODELS RAS-3.0UFESNH1 RAS-3.5UFESNH1 RAS-4.0UFESNH1 RAS-5.0UFESMH1...
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Page 2: Table Of Contents
Table of Contents 1. Option list ...............................1 1.1 Wired remote controller .......................1 1.2 Wireless remote controller ......................10 1.3 IR Receiver ..........................15 2. Troubleshooting ............................16 2.1 Trouble guide..........................16 2.2 Fault codes ..........................21 3. Checking components .........................30 3.1 Check refrigerant system......................30 3.2 Check parts unit .........................32 4. -
Page 3: Option List
1. Option list Wired remote controller (Model：HCWA21NEWH) Wired remote controller installation Checking accessories Check that the following accessories are included with the unit before installation： Quality certification Controlling cable Connecting terminal Manual Screw 2 pcs 2 pcs How to install 1.Selecting the Installation Location. - Page 4 A.Connect the controlling cable with upper cover terminal as the figure above. B.Connect the other attached controlling cable with indoor unit control board. C.Connect the 2 controlling cables with attached connecting terminal as the figure below: Controlling cable Controlling cable Firmly fasten the connection cord after connection.
- Page 5 Parameter setting The wired controller room temperature display and limit set temperature can be revised if needed. Before setting, please check if these parameters are enabled to be revised, for details, see Custom parameters. 1.Temperature limit setting Default temperature set point range is (16-30)℃. You can change the range when needed. For example, in cooling mode, temperature adjustment range could be changed to (23-30)℃;...
- Page 6 Upper cover assembly Align the upper cover with the hasp of lower cover of the wired controller, and then press the upper cover onto the lower cover. After installation, tear off protective sticker attached on the display of wired controller. Hasp Hasp Wired controller introduction...
- Page 7 LCD screen Mode indication area,which indicate the current operation mode Timer setting Clock Up/Down airflow swing Left/Right airflow swing Display room temperature /set temperature Fan speed display Parameter revision indicator Filter cleaning indicator Electric heater indicator Error Indicator Button lock indicator Defrost indicator Sleep indicator Fan speed setting...
- Page 8 3.Temperature setting Press the " " or " " button to enter the temperature setting state. Each time “ ” button is pressed , temperature setting increases by 1℃； Each time “ ” button is pressed , temperature setting decreases by 1℃. Temperature setting range COOLING, HEATING, DRY, AUTO 16℃~30℃...
- Page 9 Sleep mode With the sleep function, the air conditioner will run in the mode of comfortable sleep to improve comfort. How to activate: Press and hold “ ” button for 5s when the appliance is on to set the sleep function. The icon will be displayed on the LCD, indicating that sleep mode is activated.
- Page 10 Single TIMER ON/OFF How to activate: During OFF condition, repetitively press " " button until icon ONCE appears, “ON” and clock set are flickering, press “ ” button to enter Timer ON setting. Press “ ” button to adjust the timer hour. Enter “Single TIMER ON/OFF ”...
- Page 11 Weekly Timer Weekly timer can be used to set on/off time respectively for seven days a week. Air conditioner can be on/off in preset time every day, without manual control. The air conditioner can be set on/off automatically before you wake up in the morning, back home from work or during sleep at night.
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Page 12: Wireless Remote Controller
1.2 Wireless remote controller (Model：HCRA31NEWH) Wireless remote controller The remote controller transmits signal to the system. TEMP. MODE Used to adjust the room Press this button to select the temperature and the timer. operation mode. POWERFUL ON/OFF Used to start or stop the fast The appliance will be started cooling/heating. - Page 13 How to Insert the Batteries Remove the battery cover according to the arrow direction. Insert new batteries making sure that the (+) and (-) of battery is matched correctly. Reattach the cover by sliding it back into position. NOTE: Use 2 LR03 AAA (1.5volt) batteries. Do not use rechargeable batteries.
- Page 14 FAN mode � button repetitively. Press Press Result: The fan speed is changed in sequence: Auto Quiet Low Medium High PRESS At "FAN" mode, only "Auto" is not available. At "DRY" mode, Fan speed is set at "AUTO” automatically, "FAN" button is ineffective in this case.
- Page 15 How to cancel the AUTO mode? Press the button. PRESS Result: The AUTO mode will be cancelled. POWERFUL mode POWERFUL mode is used to start or stop fast cooling or heating only when the unit is on. In POWERFUL mode, you can set temperature, airflow direction or timer. How to set POWERFUL mode? Press POWERFUL button at the cool, dry and fan mode.
- Page 16 Press the button. Result: Once to increase or decrease the time setting by 1 hour. PRESS When your desired time displayed on LCD, press the TIMER button and confirm it. Result: stop flashing. PRESS How to cancel TIMER ON? Press the TIMER button. Result: The indicator disappears, the timer on mode has been cancelled.
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Page 17: Ir Receiver
1.3 IR Receiver (Model: HRBA31NEGH) Please read the Installation Manual supplied with the IR receiver carefully, and perform installation properly in accordance with these instructions. Along the arrow direction into the ceiling with a hole punched Installation completed. Operation Sending commands from controller The operation commands are sent by pressing the required operation switch by aiming the transmitter of the remote controller at the receiver of the indoor unit. -
Page 18: Troubleshooting
2.TROUBLESHOOTING 2. Troubleshooting 2.1 Trouble guide Troubleshooting for normal malfunction Troubleshooting Possible Reason of Abnormality How to Deal With 1. Check power supply circuit; 2. Measure insulation resistance to 1. Power supply failure; ground to see if there is any 2. - Page 19 2.TROUBLESHOOTING (2) Fault codes indicated by LED lamps on display panel Lamp RUN (LED2, Red) and Lamp DEFROST (LED5, Green) flash. Lamp RUN display fault code is represented by 2- digit number, and lamp DEFROST display fault code is represented by single digit number (as shown fig.
- Page 20 2.TROUBLESHOOTING Outdoor unit 3.0/3.5HP DC-Inverter unitary (Main control board upside-down) Fault code displayed by LED lamps on outdoor main control board. There are 3 LED lamps on control board, LED1, LED2 and LED3. LED1 indicates fault code represented by 2-digit number, LED2 indicates fault code represented by single digit number and LED3 indicates outdoor drive control fault.
- Page 21 2.TROUBLESHOOTING 4.0/5.0/6.0/6.5HP Main control fault display Fault code will be displayed on digital tube board. Outdoor Control Board Digital Tube Drive fault code display The lamp of drive board flashing shows failure occurs.
- Page 22 2.TROUBLESHOOTING Drive fault code display The lamp of drive board flashing shows failure occurs. How many times the drive failure lamp flick will show the failure code. Single phase models: LED1:Drive failure indicator 3-phase models: LED1,LED3: Power lamp LED2: Drive failure indicator How many times the drive failure lamp flick will show the failure code.
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Page 23: Fault Codes
2.TROUBLESHOOTING 2.2 Fault codes The following is the fault code table of outdoor units. Table 1 Outdoor fault code Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1.Reconnect the outdoor 1.The outdoor ambient temperature ambient temperature sensor; Outdoor ambient sensor is connected loosely;... - Page 24 2.TROUBLESHOOTING Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1. Normal protection; Three-phase power is abnormal; Application of 2. Check the wiring connection The outdoor wiring is connected three-phase Voltage absent phase referring to the wiring diagram; improperly;...
- Page 25 2.TROUBLESHOOTING Fault Fault description How to deal with Remarks Possible reasons for abnormality code 1.The cable between the control 1.Reconnect the cable between board and the driver board is the control board and the connected loosely; driver board; IPM and control board 2.The cable between the control 2.Replace the communication communication fault...
- Page 26 2.TROUBLESHOOTING The following is the fault code table of indoor unit. Table 2 Indoor fault code Fault How to deal with Remarks Fault description Possible reasons for abnormality code 1. Check whether there is something blocking the drain hose or the drain hose is too high;...
- Page 27 2.TROUBLESHOOTING Fault Fault description Remarks Possible reasons f or abnormality How to deal with code EE in MCU is fails, the unit Indoor EEPROM can run, but the function user Replace EE data in MCU. Data 2 fault has set is ineffective. 1.
- Page 28 2.TROUBLESHOOTING NOTE 1: If the indoor unit can not start or the indoor unit stops itself after 30s, at the same time the unit does not display the fault code, please check the fire and the socket of the control board. NOTE 2: If the indoor unit displays the 75,76,77,78 fault code after you turn on the unit, please check the TEST seat of the indoor control board or the TEST detection circuit to see whether short circuit...
- Page 29 2.TROUBLESHOOTING Table 3 Drive fault code (3.0/3.5HP) Fault Fault description Possible reasons for abnormality How to deal with code Inverter DC voltage overload fault 1. Power supply input is too high 1. Check power supply; Inverter DC low voltage fault or too low;...
- Page 30 2. TROUBLESHOOTING Table 4 Drive Fault Code (4.0/5.0/6.0/6.5HP) Fault Fault description How to deal with Possible reasons for abnormality code 1. Check compressor wire; 1. Compressor wire is not connected properly; 2. Change driver board; 2. Bad driver board components; Q axis current 3.
- Page 31 2.TROUBLESHOOTING Fault Fault description How to deal with Possible reasons for abnormality code 1. Voltage input is too low; 1. Check the power supply; Low DC voltage 200V 2. Drive board fault. 2. Change the driver board; Driver board read EE 1.
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Page 32: Checking Components
3. CHECKING COMPONENTS 3. Checking components 3.1 Check refrigerant system TEST SYSTEM FLOW Conditions: ① Compressor is running. ② The air condition should be installed in good ventilation. Tool: Pressure Gauge Technique: ① see ② feel ③ test See ----- Tube defrost. Feel ----- The difference between tube’s temperature. - Page 33 3. CHECKING COMPONENTS Test system flow Cooling mode Test system pressure. The pressure on the Is the low pressure high side. normal at service part ? Recharge refrigerant after air purging with If the pressure is The pressure on the the vacuum close to static low side.
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Page 34: Check Parts Unit
3. CHECKING COMPONENTS 3.2 Check parts unit 1. Indoor unit fan motor Ducted motor model (DC motor) 3.0HP: SIC-68CVL-F160-2 3.5/4.0HP: SIC-101CW-F1210-1 5.0/6.0/6.5HP: SIC-101CW-F1250-4 Cassette motor model(DC motor) 3.0/3.5/4.0HP: EHDS50AQH 5.0/6.0/6.5HP:SIC-72FW-D8124-2B Floor Ceiling model (DC motor) 3.0HP: SIC-70CW-F1100-6 3.5/4.0HP: SIC-70CW-F1140-3 5.0/6.0/6.5HP: SIC-101CW-F1181-2 Test in resistance. - Page 35 3. CHECKING COMPONENTS 2. Outdoor unit fan motor DC motor 3.0/3.5HP: SIC-61FW-F161-1 4.0HP:SIC-71FW-D8121-1 5.0HP SIC-81FW-F1138-1 6.0/6.5HP: SIC-71FW-D8121-1+ SIC-71FW-D8121-2 3. Compressor COMPRESSOR EXAMINE AND REPAIR 3.0/3.5HP: KTM240D57UMT 6.0HP: KTF400D64UMT DC Inverter & Power Controller Compressor 4.0/5.0HP: KTF310D43UMT 6.5HP: KTQ420D1UMU Thermal Sensor DC Inverter Power &...
- Page 36 3. CHECKING COMPONENTS Test in resistance. TOOL: Multi-meter. Test the resistance of the winding. The compressor fails if the resistance of winding is 0 (short circuit)or∞(open circuit). Familiar error: 1) Compressor motor lock. 2) Discharge pressure value approaches static pressure value. 3) Compressor motor winding abnormality.
- Page 37 3. CHECKING COMPONENTS 4. INDUCTANCE Familiar error: 1）Sound abnormality 2）Insulation resistance disqualification. 5. STEP MOTOR Test in resistance. TOOL: Multimeter. Test the resistance of winding. The stepper motor fails if the resistance of winding is 0 (short circuit) or ∞ （open circuit）. 6.
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Page 38: Disassembly And Assembly For Compressor And Motor
4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR 4. Disassembly and assembly for compressor and motor The special tools for compressor & motor disassembly and assembly： Tool Hexagon Screwdriver Hexagon Socket Outdoor unit 3.0HP/3.5HP Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. - Page 39 4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR 4.0HP/5.0HP Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction 1. Remove the top cover, handle 1.
- Page 40 4 . DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR 6.0HP/6.5HP Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free. Step Illustration Handling Instruction 1. Remove the top cover, handle and valve cover;...
- Page 41 4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR Ducted type 3.0HP Removal and Assembly of Fan Motor Important: Before removing the fan, make sure the power is off. Step Illustration Handling instruction Use screwdriver to remove the electric 1. Unplug the motor box cover and unplug the motor cables cables in electric box.
- Page 42 4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR 3.5HP/4.0HP Removal and Assembly of Fan Motor Important: Before removing the fan, make sure the power is off. Step Illustration Handling instruction Use screwdriver to remove the electric 1. Unplug the motor box cover and unplug the motor cables.
- Page 43 4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR 5.0HP/6.0HP/6.5HP Removal and Assembly of Fan Motor Important: Before removing the fan, make sure the power is off. Step Illustration Handling instruction Use screwdriver to remove the 1. Unplug the motor electric box cover and unplug the cables.
- Page 44 4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR Cassette type Removal and Assembly of Fan Motor Important: Before removing the fan, make sure the power is off. Step Illustration Handling instruction 1. Loosen the screws holding the Use screwdriver to loosen the electric box cover and electric Electric box.
- Page 45 4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR Floor ceiling type Removal of the motor Step Illustration Handling instruction Slide open the 4 decorative covers, loosen and take out the 4 screws, then open the down front panel assembly. 1. Disassembly of the down front panel assembly...
- Page 46 4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR Removal of the motor Step Illustration Handling instruction 4. Disassembly Remove the 2 screws fixing the motor of the motor shaft and fan blade by allen screwdriver. shaft Remove the fasteners between the up shell and the below shell;...
- Page 47 4. DISASSEMBLY AND ASSEMBLY FOR COMPRESSOR AND MOTOR Removal of the motor Step Illustration Handling instruction Take out of the motor and centrifugal 5. Disassembly fan blade; of the motor Remove the 2 screws fixing the (3.5/4.0HP) centrifugal fan blade and get the motor. Remove the fasteners between the up shell and the below shell on both sides of the motor;...
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Page 48: Control Logic Description
5. CONTORL LOGIC DESCRIPTION 5. Control logic description 5.1 Fan only mode (1) Outdoor fan and compressor stop. (2) Temperature setting function is disabled, and no set temperature is displayed. (3) Indoor fan can be set to high/medium/low, but can not be set to auto. 5.2 Cooling mode Indoor fan running rules: In cooling mode, indoor fan runs all the time and the speed can be selected as high,... -
Page 49: Heating Mode
5. CONTORL LOGIC DESCRIPTION 5.3 Heating mode Indoor fan running rules: In several minutes after the heating mode is started, the fan of the indoor unit will not run until the heat exchanger of the indoor unit reaches a high enough temperature. That is because cold air prevention system is operating. -
Page 50: Auto Mode
5. CONTORL LOGIC DESCRIPTION 5.4 Auto mode This mode can be chosen with remote controller and the set temperature can be changed between 16~30℃. In auto mode, the machine will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts). -
Page 51: Condenser High-Temperature Protection
5. CONTORL LOGIC DESCRIPTION 5.6 Condenser high-temperature protection DC-Inverter outdoor unit AC will enter T3 protection if any of the following conditions is satisfied. TE10 TE11 Condition1: Cooling mode: When the outdoor coil temp. T3 keeps higher than T2 for 10 seconds, the compressor and outdoor fan will shut off. - Page 52 They can take this product for environmental safe recycling. Specifications in this document are subject to change without notice, in order that Hitachi-Johnson Controls Air Conditioning, Inc. may bring the latest innovations to their customers.