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Hitachi RAS-30FS5 User Manual

Hitachi RAS-30FS5
384 pages
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Models
<Indoor Units>
In-the-Ceiling Type
RPI-0.8FSG1 RPI-2.5FSG1 RPI-8FSG1
RPI-1.0FSG1 RPI-3.0FSG1 RPI-10FSG1
RPI-1.5FSG1 RPI-4.0FSG1
RPI-2.0FSG1 RPI-5.0FSG1
4-Way Cassette Type
RCI-1.0FSG2 RCI-2.5FSG2 RCI-5.0FSG2
RCI-1.5FSG2 RCI-3.0FSG2
RCI-2.0FSG2 RCI-4.0FSG2
2-Way Cassette Type
RCD-1.0FSG1 RCD-2.5FSG1 RCD-5.0FSG1
RCD-1.5FSG1 RCD-3.0FSG1
RCD-2.0FSG1 RCD-4.0FSG1
•Wall Type
RPK-1.0FSGM6 RPK-2.0FSGM6
RPK-1.5FSGM6 RPK-2.3FSGM6
Floor Type
RPF-1.0FSG(E) RPF-1.5FSG(E)
Floor Concealed Type
RPFI-1.0FSG(E) RPFI-1.5FSG(E)
Ceiling Type
RPC-2.0FSG1 RPC-3.0FSG1 RPC-5.0FSG1
RPC-2.5FSG1 RPC-4.0FSG1
<Outdoor Units>
FSG(1) Series
RAS-5FSG RAS-16FSG RAS-24FSG1
RAS-8FSG RAS-20FSG RAS-30FSG1
RAS-10FSG
•FS3, FS5 Series
RAS-5FS3 RAS-16FS3 RAS-24FS5
RAS-8FS3 RAS-20FS3 RAS-30FS5
RAS-10FS3
FXG Series
RAS-8FXG RAS-10FXG
FX3 Series
RAS-8FX3 RAS-10FX3
<System Equipment>
•Total Heat Exchangers
KPI-2521 KPI-5021 KPI-8021 KPI-10021
This service mamual provides the technical
information for the HITACHI Inverter-Driven
Multi-Split System Heat Pump Air
Conditioners, “SET FREE, FSG(1)/FS3, FS5
and FXG/FX3 Series”.
Read this manual carefully before starting
service activities.
HITACHI INVERTER-DRIVEN
MULTI-SPLIT SYSTEM
HEAT PUMP AIR CONDITIONERS
SET FREE FSG(1)/FS3, FS5 SERIES
AND
SET FREE FXG/FX3 SERIES
P5413553

Table of Contents

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Hitachi RAS-30FS5 Specifications

General IconGeneral
TypeSplit System
Power Supply220-240V, 50Hz
RefrigerantR410A
Indoor Unit Weight9 kg
Outdoor Unit Dimensions (W x H x D)780 x 540 x 269 mm
Outdoor Unit Noise Level50 dB(A)

Summary

TROUBLESHOOTING

Initial Troubleshooting

Basic checks and settings for unit operation and troubleshooting.

Troubleshooting Procedures

Detailed steps and methods for diagnosing and resolving operational issues.

Procedure of Checking Each Main Parts

Procedures for inspecting and testing key components of the system.

SERVICING

Outdoor Unit

Procedures for disassembling and maintaining components of the outdoor unit.

In-the-Ceiling Type

Procedures for servicing In-the-Ceiling indoor units, covering various components.

4-Way Cassette Type

Procedures for servicing 4-Way Cassette indoor units, including component removal.

Wall Type

Procedures for servicing Wall Type indoor units, covering component removal.

Total Heat Exchanger

Procedures for maintenance and component removal for the total heat exchanger.

Cleaning Indoor Unit Heat Exchanger

Procedures and tools required for cleaning the indoor unit heat exchanger.

MAIN PARTS

Inverter Specifications and Protection

Detailed specifications and protective functions of the inverter unit.

Scroll Compressor Principles and Structure

Explanation of the reliable mechanism, compression principle, and structure.

Thermistor Specifications and Locations

Details on indoor and outdoor unit thermistors, including resistance characteristics.

OPTIONAL FUNCTION

Indoor Unit Optional Functions

Configuration options for indoor units via remote control or external signals.

Indoor Unit Optional Functions (RPI, RCI, RCD, RPC, KPI)

Configuration options for various indoor unit series via PCB connectors and remote switches.

Outdoor Unit Optional Functions

Settings and functions applicable to the outdoor unit for enhanced operation.

Remote Control Switch Overview

Details on the PC-P1H and PC-2H2 remote control switches, including parts and operation.

Wireless Remote Control Switch, PC-LH3

Information on the PC-LH3 wireless remote control switch, including part names and installation.

FIELD WORK INSTRUCTION

Troubleshooting: Burnt-out Compressor from Low Refrigerant

Diagnosing and resolving compressor burnout caused by insufficient refrigerant charge.

Troubleshooting: Poor Cooling with Long Piping

Addressing reduced cooling performance due to extended piping length and incorrect settings.

Troubleshooting: High Operating Sound in In-the-Ceiling Units

Identifying and resolving causes of abnormal operating noise in ceiling-mounted units.

Installation and Design Considerations for SET-FREE FXG/FX3 Series

Important points for system design, installation site, and piping work for FXG/FX3 series.

Routine Maintenance Procedures

Guidelines for regular maintenance of indoor and outdoor units, including checks and cleaning.

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