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Please select a product model below to access air-conditioners brochures, manuals and technical specifications.

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Commercial Air Conditioners

• • Model
  • Description
  • Documentation

• Model

  Rooftop Packaged Air Conditioners

  Description

  From room air conditioners to large central plant air conditioning systems.

  Documentation

• Model

  RAS-H

  Description

  Reverse Cycle Ducted Heat Pump Air-Conditioners

  Documentation

Home Air Conditioners

• • Model
  • Description
  • Documentation

• Model

  DC Inverter Driven Split

  Description

  Hitachi DC inverter Driven Split Systems

  Documentation

• Model

  RAS25YHA

  Description

  2.5 / 3.4kW Inverter Reverse Cycle Split System

  Documentation

• Model

  RAS25YHA1

  Description

  Reverse Cycle Split System

  Documentation

• Model

  RAS260GA

  Description

  2.9kW Cooling Only Split

  Documentation

• Model

  RAS260GHA

  Description

  2.9 / 3.0kW Reverse Cycle

  Documentation

• Model

  RAS350GA

  Description

  3.5kW Cooling Only Split

  Documentation

• Model

  RAS350GHA

  Description

  3.5 / 3.85kW Reverse Cycle Split System

  Documentation

• Model

  RAS35YHA

  Description

  3.5 / 4.2kW Inverter Reverse Cycle Split System

  Documentation

• Model

  RAS35YHA1

  Description

  Reverse Cycle Split System

  Documentation

• Model

  RAS50YHA

  Description

  5.0 / 6.5kW Inverter Reverse Cycle Split System

  Documentation

• Model

  RAS50YHA1

  Description

  Reverse Cycle Split System

  Documentation

• Model

  RAS51CA3

  Description

  5.1kW Cooling Only Split

  Documentation

• Model

  RAS51CHA3

  Description

  5.1 / 5.6kW Reverse Cycle Split System

  Documentation

• Model

  RAS60YHA

  Description

  6.2 / 7.3kW Inverter Reverse Cycle Split System

  Documentation

• Model

  RAS60YHA1

  Description

  Reverse Cycle Split System

  Documentation

• Model

  RAS63CHA3F

  Description

  6.3 / 7.05kW Reverse Cycle Split System

  Documentation

• Model

  RAS70YHA

  Description

  7.1 / 8.3kW Inverter Reverse Cycle Split System

  Documentation

• Model

  RAS70YHA1

  Description

  Reverse Cycle Split System

  Documentation

• Model

  RAS72CHA3

  Description

  7.0 / 7.3kW Reverse Cycle Split System

  Documentation

• Model

  RAS80YHA

  Description

  8.0 / 9.3kW Inverter Reverse Cycle Split System

  Documentation

• Model

  RAS80YHA1

  Description

  Reverse Cycle Split System

  Documentation

• Model

  RAS81CHA3

  Description

  8.1 / 8.8kW Reverse Cycle Split System

  Documentation

• Model

  Utopia G7 series

  Description

  Utopia G7 series split system

  Documentation

Product Manuals & Resources

• Air Conditioners

Related Links

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• Sustainability Hitachi’s approach to addressing the social and environmental issues
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• Service Dealer Locator Search for your nearest recommended Authorised Service Centre

Hitachi Inverter-driven, Multi-split System, Heat Pump Air Conditioners;

Alarm Codes;

Code: 01

Content of Abnormality: Tripping of Protection Device

Leading Cause: Failure of Fan Motor, Drain Discharge, PCB, Relay

Code: 02

Content of Abnormality: Tripping of Protection Device

Leading Cause: Activation of PSH

Code: 03

Content of Abnormality: Abnormality between Indoor (or outdoor) and Outdoor (or Indoor)

Leading Cause: Incorrect Wiring. Failure of PCB. Tripping of Fuse. Power Supply OFF.

Code: 04

Content of Abnormality: Abnormality between Inverter and Control PCB

Leading Cause: Failure in Transmission between PCBs

Code: 05

Content of Abnormality: Abnormality of Power Source Wiring

Leading Cause: Reverse Phase Incorrect Wiring

Code: 06

Content of Abnormality: Voltage Drop by Excessively Low or High Voltage to Outdoor Unit

Leading Cause: Voltage Drop of Power Supply, Incorrect Wiring or Insufficient Capacity of Power Supply Wiring

Code: 07

Content of Abnormality: Decrease in Discharge Gas Superheat

Leading Cause: Excessive Refrigerant Charge, Expansion Valve Open Lock

Code: 08

Content of Abnormality: Increase in Discharge Gas Temperature

Leading Cause: Insufficient Refrigerant. Ref. Leakage, Clogging or Expansion Valve Close Lock

Code: 09

Content of Abnormality: Tripping of Protection Device

Leading Cause: Failure of Fan Motor

Code: 11

Content of Abnormality: Inlet Air Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 12

Content of Abnormality: Outlet Air Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 13

Content of Abnormality: Freeze Protection Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 14

Content of Abnormality: Gas Piping Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 19

Content of Abnormality: Failure of Fan Motor

Leading Cause: Failure of Fan Motor

Code: 21

Content of Abnormality: High Pressure Sensor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 22

Content of Abnormality: Outdoor Air Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 23

Content of Abnormality: Discharge Gas Thermistor on Comp

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 24

Content of Abnormality: Evaporating Thermistor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 29

Content of Abnormality: Low Pressure Sensor

Leading Cause: Failure of Thermistor, Sensor, Connection

Code: 30

Content of Abnormality: Incorrect Wiring Connection

Leading Cause: Incorrect Wiring Connection between Outdoor Unit, CH Unit and Indoor Unit

Code: 31

Content of Abnormality: Incorrect Setting of Outdoor and Indoor Unit

Leading Cause: Incorrect Setting of Capacity Code

Code: 32

Content of Abnormality: Abnormal Transmission of Other Indoor Unit

Leading Cause: Failure of Power Supply, PCB in Other Indoor Unit. Failure of Other Indoor Unit of the Same Refrigerant Cycle.

Code: 35

Content of Abnormality: Incorrect Setting in Indoor/Outdoor Unit No.

Leading Cause: Existence of the same Indoor Unit No. in the same refrigerant cycle

Code: 38

Content of Abnormality: Abnormality of Protective Circuit in Outdoor Unit

Leading Cause: Failure of Indoor Unit PCB. Incorrect Wiring Connection to PCB in Outdoor Unit

Code: 39

Content of Abnormality: Abnormality of Running Current at Constant Compressor

Leading Cause: Overcurrent, Melted Fuse of Failure of Current Sensor

Code: 43

Content of Abnormality: Pressure Ratio Decrease Protection Activating

Leading Cause: Failure of Compressor, Inverter

Code: 44

Content of Abnormality: Low Pressure Increase Protection Activating

Leading Cause: Overload to Indoor in Cooling, High Temperature of Outdoor Air in Heating Expansion Valve Open Lock

Code: 45

Content of Abnormality: High Pressure Increase Protection Activating

Leading Cause: Overload Operation. Excessive Refrigerant Clogging of Heat Exchanger

Code: 46

Content of Abnormality: High Pressure Decrease Protection Activating

Leading Cause: Insufficient Refrigerant

Code: 47

Content of Abnormality: Low Pressure Decrease Protection Activating

Leading Cause: Insufficient Refrigerant. Expansion Valve Close Lock. Refrigerant Leakage

Code: 51

Content of Abnormality: Abnormality of Current Sensor for Inverter

Leading Cause: Failure of Sensor on Inverter PCB

Code: 52

Content of Abnormality: Overcurrent Protection Activating

Leading Cause: Overload, Overcurrent, Locked to Compressor

Code: 53

Content of Abnormality: IPM Protection Activating

Leading Cause: Automatic Stoppage of IPM

Code: 54

Content of Abnormality: Increase in Inverter Fin Temperature

Leading Cause: Abnormal Inverter Fin Thermistor, Abnormal Outdoor Fan

Code: 56

Content of Abnormality: Abnormality of Detection for Fan Motor Position

Leading Cause: Abnormal Detection Circuit of Transmission

Code: 57

Content of Abnormality: Fan Controller Protection Activating

Leading Cause: Abnormal Fan Speed

Code: 58

Content of Abnormality: Abnormality of Fan Controller

Leading Cause: Overcurrent, Abnormal Fan Controller Fin

Code: 59

Content of Abnormality: AC Chopper Circuit Protection

Leading Cause: Failure of FET, Power Supply, CT for Fan Motor

Code: EE

Content of Abnormality: Compressor Protection

Leading Cause: 3 Time Occurrence of Alarm Giving Damage to Compressor within 6 hours

Code: dd

Content of Abnormality: Incorrect Wiring between Indoor Units

Leading Cause: Incorrect Wiring between Indoor Units and Remote Control Switch

Remote Controller-Model: PC-2H2

Code: 01

Cause: Safety Device of the Indoor Unit is tripped (internal Thermostat, *Float Switch)

Code: 02

Cause: Safety Device of the Outdoor Unit is tripped

Code: 03

Cause: Transmission Abnormality between Indoor Unit and Outdoor Unit

Code: 05

Cause: Picking up phase Abnormality

Code: 08

Cause: Abnormality High Temperature on the Top of Compressor

Code: 11

Cause: Thermistor Abnormality for inlet Air Temperature

Code: 12

Cause: Thermistor Abnormality for outlet Air Temperature

Code: 13

Cause: Thermistor Abnormality for Freezing Temperature

Code: 20

Cause: Thermistor Abnormality for Compressor Top Temperature

Code: 22

Cause: Thermistor Abnormality for Outdoor Air Temperature

Code: 24

Cause: Thermistor Abnormality for Outdoor Evaporating Temperature (defrosting)

Code: 25

Cause: Thermistor Abnormality for Condensing Temperature

Code: 32

Cause: Transmision Abnormality between Master and Slave

Code: 38

Cause: Abnormality in the Picking up Circuit protection

Code: 41

Cause: Excessive Overload during Cooling Operation

Code: 42

Cause: Excessive Overload during Heating Operation

Regarding the retry control, the lastest retry code will be indicated unless the protection control related with the frequency control is indicated.

Troubleshooting

This Is Not Abnormal

• Smells from Indoor Unit; Smell adheres on indoor unit after a long period of time. Clean the air filter and panels or allow a good ventilation.
• Sound from Deforming Parts; During system starting or stopping, an abrading sound might be heard. However, this is due to thermal deformation of plastic parts. It is not abnormal.
• Steam from Outdoor Heat Exchanger; During defrosting operation, ice on the outdoor heat exchanger is melted, resulting in making steam.
• Dew on Air Panel; When the cooling operation continues for a long period of time under high humidity conditions (higher than 27°C DB/80% R.H), dew can form on the air panel.
• Refrigerant Flow Sound; While the system is being started or stopped, sound from the refrigerant flow may be heard.

Hitachi 1.5 Ton Ac Price

Not Cooling Or Heating Well

• Check for obstruction of air flow of the outside or inside units.
• Check if too much heat source exists in the room.
• Check if the air filter is clogged with dust.
• Check to see if the doors or windows are opened or not.
• Check if the temperature condition is not within the operation range.

Hitachi Dc Inverter Ac 1.5 Ton User Manual 2017

Not Operate

• Check for electrical wiring.
• Check for dip switch setting.
• Check whether the “SET TEMP” is set at the correct temperature.
• In the case that “RUN” lamp on remote control switch is flickering every 2 seconds, check for connection of remote control line.
• In the case that “RUN” lamp flashes 5 times (5 seconds) with unit number and alarm code displayed, refer to the next item “18.2 Troubleshooting by Alarm Code” and the “Service Manual”.
• In the case that no alarm code is indicated and normal operation is not available, refer to the “Service Manual” because abnormality of some device is suspected.

Hitachi Dc Inverter Ac 1.5 Ton User Manual Instructions