Hitachi RPIL-1.0PNN1DH Service Manual
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Hitachi RPIL-1.0PNN1DH Service Manual

Primairy large single split dc-inverter indoor units
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–
SERVICE MANUAL
PRIMAIRY
LARGE SINGLE SPLIT
DC-INVERTER
SERIES
INDOOR UNITS
MODELS
DUCTED
RPIL-1.0PNN1DH
RPIL-1.5PNN1DH
RPIL-2.0PNN1DH
RPIM-3.0PNN1DH
RPIM-4.0PNN1DH
OUTDOOR UNITS
MODELS
RAS-1.0PNNBDH1
RAS-1.5PNNBDH1
RAS-2.0PNNBDH1
RAS-3.0PNNBDH1
RAS-4.0PNNBDH1
HS2021393HA
SM)-210131
CASSETTE
RCIM-1.0PNN1DH
RCIM-1.5PNN1DH
RCI-2.0PNN1DH
RCI-3.0PNN1DH
RCI-4.0PNN1DH

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Summary of Contents for Hitachi RPIL-1.0PNN1DH

  • Page 1 – SERVICE MANUAL PRIMAIRY LARGE SINGLE SPLIT DC-INVERTER SERIES INDOOR UNITS MODELS DUCTED CASSETTE RPIL-1.0PNN1DH RCIM-1.0PNN1DH RPIL-1.5PNN1DH RCIM-1.5PNN1DH RPIL-2.0PNN1DH RCI-2.0PNN1DH RPIM-3.0PNN1DH RCI-3.0PNN1DH RPIM-4.0PNN1DH RCI-4.0PNN1DH OUTDOOR UNITS MODELS RAS-1.0PNNBDH1 RAS-1.5PNNBDH1 RAS-2.0PNNBDH1 RAS-3.0PNNBDH1 RAS-4.0PNNBDH1 HS2021393HA SM)-210131...

  • Page 2: Table Of Contents

    Table of Contents 1. Option list ...............................1 1.1 Wired controller..........................1 1.2 Wireless remote controller ......................11 1.3 IR Receiver ..........................18 2. Troubleshooting ............................19 2.1 Trouble guide..........................19 2.2 Fault codes ..........................23 3. Checking components .........................33 3.1 Check refrigerant system......................33 3.2 Check parts unit .........................34 4.

  • Page 3: Option List

    1. OPTION LIST 1. Option list 1.1 Wired Rmote Controller (Model: HCWA21NEHH) Wired controller installation Manual Quality certification Screw Controlling cable Connecting terminal 2 pcs 2 pcs 1 pc Insert the slotted screwdriver from here, and press on it for removal. 3.Determining the direction of the controller wiring outlet (back outlet, bottom outlet).
  • Page 4 1. OPTION LIST Steps: ① Leading out wire Pull one of the attached controlling cable out of the lower cover from the rear round hole. Back outlet hole Bottom outlet hole * Lead out the wire toward the arrow direction! Wiring ②...
  • Page 5 1. OPTION LIST 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 Custom parameters...
  • Page 6 1. OPTION LIST Parameter setting (Only when there is no TIMER function, can this function be set.) 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 The temperature set point range is (16-30)℃...
  • Page 7 1. OPTION LIST Wired Controller Introduction Wired controller COOL HEAT AUTO Defrost RT. SET GROUP AUTO Purifier LCD Screen Mute Sleep Set back ALARM FILTER Power Lamp Air conditioner ON: Lit brightly Air conditioner OFF: Not lit Built-in Infrared Signal Receiver Area Button Introduction Button Instruction...
  • Page 8 1. OPTION LIST Fan speed area Timer area Other icons Ultrahigh fan speed Timer ON Group control Auto fan speed AUTO Timer OFF High fan speed Address Group select Medium fan speed Clock Button lock Low fan speed Day select during timer set.
  • Page 9 1. OPTION LIST AUTO AUTO MEDIUM HIGH AUTO fan speed is invalid for “FAN” mode. AUTO fan speed is the default setting under DRY mode, and it can’t be adjusted. 5. Airflow swing setting Under the ON conditions or under the OFF conditions when TIMER ON function is enabled, press the “ ”...
  • Page 10 1. OPTION LIST Sleep mode With the sleep function, the air conditioner will run in the mode of comfortable sleep to improve comfort. How to active: Press the “ ” b ” button when the appliance is on to set the sleep function. The icon “ ”...
  • Page 11 1. OPTION LIST Back light setting Default back light is on. If you need the screen to be dark, press “ ” button for 3s, the buzzer beeping for 4 times indicates setting has been successfully changed. If you need it returns to previous state, repeat the steps above. Clock setting In case of any clock loss due to first startup and long-time shutdown, it is required to set the clock.
  • Page 12 1. OPTION LIST 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 on/off automatically before you wake up in the morning, back home from work or during sleep at night. Weekly timer on/off time can be set for four groups at most, the four groups can be assigned to any day regularly.

  • Page 13: Wireless Remote Controller

    1. OPTION LIST 1.2 Wireless remote controller (Model：HCRB31NEGH) Remote controller The remote controller transmits signals to the system. TEMP MODE Used to adjust the room temperature and Press this button to select the operation mode. the timer, also real time. SUPER POWER Used to start or stop the fast cooling/heating.
  • Page 14 1. OPTION LIST How to Insert the Batteries Remove the battery cover. Insert new batteries making sure that the (+) and (-) of battery are matched correctly. Reattach the cover back into proper position. Note: Use 2 LR03 AAA(1.5volt) batteries. Do not use rechargeable batteries. Replace batteries with new ones of the same type when the display becomes dim.
  • Page 15 1. OPTION LIST Operation modes Selecting mode Press button once by once The operation modes changed in sequence: Result : COOLING FAN ONLY HEATING PRESS Heating mode is NOT available for cooling only air conditioner. FAN mode Press button once by once Result : The fan speed is changed in sequence: Auto...
  • Page 16 1. OPTION LIST SMART mode(invalid for multi system) How to set SMART mode? Press the button. Result : Enters SMART mode(fuzzy logic operation). PRESS Mode and fan speed are automatically set based on the actual room temperature. Press MODE button cancel SMART mode. Note: Temperature, airflow and direction are controlled automatically in SMART mode.
  • Page 17 1. OPTION LIST How to set SUPER mode? Press buttonat the cooling, dry and fan only mode. Result : At high fan speed, the set temperature automatically goes to 16℃ (61°F). PRESS Press butto at the heating mode. Result : At auto fan speed, the set temperature automatically goes to 30 ℃(86°F).
  • Page 18 1. OPTION LIST When your desired time displays on LCD, press the TIMER button and confirm it. Result : "ON" stops flashing. PRESS After the set timer displays for 5 seconds, the clock will be displayed on the LCD of the remote controller instead of set timer.
  • Page 19 1. OPTION LIST CLOCK button How to adjust the real time? Press button. Result : The time flashes on the LCD. PRESS Press s buttons. Result : Once to increase or decrease the time setting by 1 minute. PRESS One and a half seconds to increase or decrease the time setting by 10 minutes.

  • Page 20: Ir Receiver

    1. OPTION LIST 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...

  • Page 21: Troubleshooting

    2. TROUBLESHOOTING 2. Troubleshooting 2.1 Trouble guide Troubleshooting for normal malfunction Troubleshooting Possible Reasons 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 22 2. TROUBLESHOOTING (2) Fault codes indicated by LED lamps on display panel Lamp RUN (LED2, Red) and Lamp DEFROST (LED5, Green) flash. Lamp RUN displays the ten's place of the fault code , lamp DEFROST displays the unit's place of the fault code (as shown fig. below).
  • Page 23 2. TROUBLESHOOTING LED1: Ten’s place LED2: Unit’s place LED3: Drive failure indicator For example, outdoor main control fault 32: For example, outdoor drive fault 32: 3.0HP/4.0HP(24K/36K) Main control fault display Fault code will be displayed on digital tube board. Outdoor Control Board 7-Segment Display...
  • Page 24 2. TROUBLESHOOTING Display ERROR code. Show failure occur. Drive fault code display The lamp of drive board flashing shows failure occurs. How many times the drive failure lamp flickers will show the failure code. Single phase models: LED1:Drive failure indicator...

  • Page 25: 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;...
  • Page 26 2. TROUBLESHOOTING Fault Fault description Possible reasons for abnormality How to deal with Remarks code 1. Reconnect the wiring of the 1. The wiring of the overload overload protector; protector is connected loosely. 2. Replace the overload 2. The overload protector fails . protector;...
  • Page 27 2. TROUBLESHOOTING Fault Fault description Possible reasons for abnormality How to deal with Remarks 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 28 2. TROUBLESHOOTING The following is the fault code table of indoor unit. Table 2 Indoor fault code Fault Remarks Fault description Possible reasons for abnormality How to deal with code 1.1 Check whether there is something blocking the drain hose or the height of the drain hose is too high;...
  • Page 29 2. TROUBLESHOOTING Fault Fault description Possible reasons f or abnormality How to deal with Remarks code EE in MCU fails, the unit Indoor EEPROM can run, but the function Replace EE data in MCU. Data 2 fault user has set is ineffective. 1.
  • Page 30 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 do 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 31 2. TROUBLESHOOTING Table 3 Analysis of the driving board fault [1.0/1.5/2.0HP(9K/12K/18K)] Fault Fault description How to deal with Possible reasons for abnormality 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 32 2. TROUBLESHOOTING Table 4 Analysis of the driving board fault [3.0HP/4.0HP(24K/36K)] Fault Fault description How to deal with Possible reasons for abnormality code 1. Check the compressor wire; 1. Compressor wire is not connected properly; 2. Change the driver board ; 2.
  • Page 33 2. TROUBLESHOOTING Fault Fault description Possible reasons for abnormality How to deal with 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.
  • Page 34 2. TROUBLESHOOTING Table 5 Limitation Code Descriptions Definitions Code When overcurrent occurs, stop the frequency from Current control increasing. When overcurrent occurs, reduce the frequency. Current control When the temperature of IPM module is too high, Frequency control to keep appropriate temperature stop the frequency from increasing.

  • Page 35: 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 36: Check Parts Unit

    3. CHECKING COMPONENTS Heating mode Test system pressure. Is the high The pressure on the pressure normal at high side. service part ? Recharge refrigerant Remove the back after air purging with The pressure on the panel."see"the the vacuum low side. capillary tube1 and pump.
  • Page 37 3. CHECKING COMPONENTS Test in resistance. TOOL: Multimeter. Test the resistance of the main winding. The indoor fan motor fails if the resistance of main winding is 0(short circuit)or∞ （open circuit). Test in voltage TOOL: Multimeter. Insert screwdriver to rotate indoor fan motor slowly for 1 revolution or over, and measure voltage “YELLOW”...
  • Page 38 3. CHECKING COMPONENTS 3. Compressor Compressor examine and repair 1.0/1.5HP(9K/12K): ASN108D43UFZA 2.0HP(18K): ATM150D23UFZ 3.0HP(24K): EATF250D22UMT 4.0HP(36K): ATF310D43UMT Thermal Sensor DC Inverter Power & Controller Compressor 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).
  • Page 39 3. CHECKING COMPONENTS 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. Fuse Check for continuity of fuse on PCB ASS’Y. Remove the PCB ASS’Y from the electrical component box.

  • Page 40: Disassembly Precedure

    4. DISASSEMBLY PROCEDURE 4. Disassembly prodedure Outdoor unit Disassembly and assembly for compressor and motor The special tools for compressor & motor disassembly and assembly： Tool Hexagon Screwdriver Hexagon Socket 1.0/1.5/2.0HP(9K/12K/18K) Important: Before disassembly and assembly, make sure that the power to the system has been disconnected and verified as voltage free.
  • Page 41 4. DISASSEMBLY PROCEDURE Disassembly and assembly for compressor，motor and tube type electric heater 3.0HP(24K) 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 42 4. DISASSEMBLY PROCEDURE 4.0HP(36K) 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; 1. Remove external casing 2.
  • Page 43 4. DISASSEMBLY PROCEDURE Disassemblyandassemblyfor motor Ducted type 1.0/1.5HP(9K/12K) Removal and Assembly of Fan Motor Important: Before removing the fan, make sure power to the system is disconnected. Step Illustration Handling Instruction Use screwdriver to remove the 1. Unplug the motor electric box cover and unplug the cables.
  • Page 44 4. DISASSEMBLY PROCEDURE Ducted type 2.0HP(18K) Removal and Assembly of Fan Motor Important: Before removing the fan, make sure power to the system is disconnected. Step Illustration Handling Instruction Use screwdriver to remove the 1. Unplug the electric box cover and unplug the motor cables motor cables in electric box.
  • Page 45 4. DISASSEMBLY PROCEDURE Ducted type 3.0HP(24K) Removal and Assembly of Fan Motor Important: Before removing the fan, make sure power to the system is disconnected. 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 46 4. DISASSEMBLY PROCEDURE Ducted type 4.0HP(36K) Removal and Assembly of Fan Motor Important: Before removing the fan, make sure power to the system is disconnected. 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 47 4. DISASSEMBLY PROCEDURE Cassette type 1.0/1.5/2.0HP(9K/12K/18K) Replacement of Fan Motor Illustration Step Handling Instruction Use screwdriver to loosen 1. Loosen the screws the screws holding the holding condensate pan. drain pan in place. 2. Remove the condensate Carefully remove the condensate pan.
  • Page 48 4. DISASSEMBLY PROCEDURE Replacement of Fan Motor Illustration Step Handling Instruction 6. Remove the motor Remove the motor and replace it. and replace it 7. Tighten the bolts Use a wrench or holding the motor socket to carefully tighten the motor bolts. Mount the fan blade and 8.
  • Page 49 4. DISASSEMBLY PROCEDURE Removal and Installation of Condensate Pump Illustration Step Handling Instruction Use screwdriver to loosen 1. Loosen the screws the screws holding the holding condensate pan. drain pan in place. 2. Remove the Carefully remove the condensate pan. condensate pan.
  • Page 50 4. DISASSEMBLY PROCEDURE Cassette type 3.0/4.0HP(24K/36K) Step Illustration Handling Instruction 1.Loosen the screws Use screwdriver to loosen the Electric box. holding the electric box cover and electric box. 2. Loosen the screws Use screwdriver to loosen the screws holding the drain holding condensate pan pan in place.

  • Page 51: Control Logic Description

    5. CONTROL 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 setting 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,(medium),...

  • Page 52: Heating Mode

    5. CONTROL 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 53: Auto Mode

    5. CONTROL LOGIC DESCRIPTION 5.4 Auto Mode This mode can be chosen with remote controller and the setting temperature can be changed between 61°F~86°F(16°C~30℃). In auto mode, the unit will choose cooling, heating or fan-only mode according to ΔT (ΔT =T1-Ts).

  • Page 54: Condenser High-Temperature Protection

    5. CONTROL 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 55 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. Hitachi-Johnson Controls Air Conditioning, Inc. © 2021 Hitachi- Johnson Controls Air Conditioning, Inc.

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