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General| Brand | Hitachi |
|---|---|
| Model | RAS-4-HNCE |
| Category | Air Conditioner |
| Language | English |
Provides general notes regarding reproduction, modification, and potential hazards related to the product documentation.
Introduces the Hitachi UTOPIA series, including IVX Premium and IVX Standard series, and their features.
Highlights the use of R410A refrigerant and adherence to RoHS and Green Dot regulations for environmental commitment.
Explains the use of DANGER, CAUTION, and NOTE symbols for safety instructions and warnings.
References EC Regulation Nº 842/2006 on Fluorinated Greenhouse gases and the handling of R410A/R407C.
Details the classification system for IVX series outdoor units based on model codes.
Explains the classification system for indoor units, including types like RCI, RCIM, RCD, RPC, RPI, RPIM, RPK, RPF, RPFI.
Provides a product guide for IVX Premium and IVX Standard outdoor units, listing models and codes.
Lists accessories for outdoor units, including snow protection hoods, air flow guides, and wind guards with codes.
Details indoor units like RCI and RCIM, their models, codes, and optional panels.
Lists complementary systems like KPI energy/heat recovery units and DX-Interface components.
Provides critical safety precautions for unit installation, including DANGER and CAUTION warnings.
Details the hanging method and gross weight for transporting outdoor units safely.
Illustrates the center of gravity for various outdoor unit models for safe hanging and movement.
Lists the factory-supplied accessories, specifically the pipe with flare nut for refrigerant piping.
Provides basic installation space requirements and diagrams for different unit models.
Details the place provision requirements for RAS-(2-2.5)HVNP/RAS-3HVNC and RAS-3HVNPE/RAS-(4-6)H(V)N(P/C)E units.
Covers optional parts and their installation for various RAS models, including air flow guides and snow protection hoods.
Provides general notes on piping materials, principles, suspension, and brazing work.
Details piping connection procedures for various RAS models, including stop valve operation.
Covers refrigerant piping length, header branch, line branch, and combinations of piping size and length.
Explains precautions for pressure check joints and refrigerant charge quantity calculation.
Discusses maximum permissible HFC concentration, calculation, and countermeasures for refrigerant leakage.
Details procedures for piping compatibility with R22 or R407C installations, including cleaning and renewal kits.
Explains the drain discharging boss and its connection procedure for outdoor units.
Provides general notes and safety precautions for electrical wiring work.
Illustrates the correct electrical wiring connections for outdoor units.
Explains the quantity, position, and function of DIP switches and RSW switches for outdoor units.
Covers common wiring between outdoor and indoor units, including wire size and power source.
Details the H-LINK II system, its features, specifications, and connection examples.
Explains system control functions, including individual and simultaneous operation modes.
Provides detailed electrical wiring diagrams for various RAS models and power supplies.
Details the control system for inverter compressor, expansion valves, fan, and other components.
Illustrates the PCB layout and components for various outdoor unit models.
Describes safety devices and control settings for protecting the compressor and system.
Provides flowcharts for standard operation sequences like Cooling, Dry, Heating, and Defrost.
Explains standard control functions such as freezing protection and high-pressure prevention.
Details available ports, optional signals, settings, and descriptions for input/output signals.
Explains how to set and describe optional functions selectable via the 7-segment display.
Lists available optional functions that can be set using the HITACHI remote control switch (PC-ART).
Outlines the essential checks to perform before initiating the test run of the system.
Provides a step-by-step guide for performing a test run using the PC-ART remote control.
Details the procedure for conducting a test run using the PC-ARF remote control switch.
Explains how to perform a test run using the wireless remote control switch (PC-LH3A/B).
Describes how to perform a test run directly from the outdoor unit using DIP switches.
Provides a comprehensive checklist for test run and compressor checks.
Covers initial troubleshooting steps, including checking the 7-segment display and power supply.
Details troubleshooting procedures based on alarm displays and alarm codes for indoor and outdoor units.
Explains troubleshooting steps using remote controllers (PC-ART, PC-ARF) and the 7-segment display.
Provides procedures for checking main parts like DIP-IPM inverter, capacitors, fan motors, and expansion valves.
Lists cycle and structural parts, and provides a parts table for RAS-(2-2.5)HVNP units.
Lists cycle and structural parts, and provides a parts table for RAS-3HVNC units.
Lists cycle and structural parts, electrical parts, and parts name for RAS-3HVNPE units.
Lists cycle and structural parts, electrical parts, and parts name for RAS-(4-6)H(V)NPE units.
Lists cycle and structural parts, electrical parts, and parts name for RAS-(4-6)H(V)NCE units.
Lists cycle and structural parts, electrical parts, and parts name for RAS-(8-10)HN(P/C)E units.
Lists cycle and structural parts, electrical parts, and parts name for RAS-12HN(P/C) units.
Provides an introduction to servicing operations, including DANGER and NOTE warnings.
Details the procedure for removing specific parts of outdoor units for RAS-(2-2.5)HVNP and RAS-3HVNC models.
Provides servicing procedures for premium series outdoor units, covering various models and components.
Covers servicing procedures for standard series outdoor units, including RAS-(4-6)H(V)NCE and RAS-(8-10)HNCE.
Details inverter specifications, time charts, protective functions, and overload control.
Explains thermistors used in outdoor units and provides resistance characteristics for discharge gas overheating protection.
Describes the electronic expansion valve, its specifications, and drive circuit.
Details the high pressure protection device, including its function and diagrams for various models.
Explains noise filters for 3-phase (400V/50Hz) and 1-phase (230V/50Hz) systems.
Describes the function and specifications of capacitors used for DC current conversion.
Provides specifications for reactors used for changing AC to DC current for the inverter.
Explains the reliable mechanism for low vibration and sound, and the principle of compression.
Covers general notes for maintenance, including power source checks, compressor issues, and installation space.
Details maintenance procedures for indoor units (fan, heat exchanger, piping) and outdoor units (compressor, reverse valve, etc.).
Provides a template for recording service and maintenance activities.
Explains how to use the 7-segment display for recording service and maintenance data.
Provides a data sheet for checking and recording service and maintenance using the remote control switch.
Details the pump-down method for replacing the compressor, including procedures and precautions.
