Hitachi RAS-3.0UFESNH1 User Manual

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SERVICE MANUAL
PRIMAIRY
LARGE SINGLE SPLIT
DC-INVERTER SERIES
MODELS
MODELS
HS2019324HB
SM)-200313
INDOOR UNITS
OUTDOOR UNITS
DUCTED
RPIL-3.0UFE1NH
RPIH-3.5UFE1NH
RPIH-4.0UFE1NH
RPIH-5.0UFE1NH
RPIH-6.0UFE1NH
RPIH-6.5UFE1NH
CASSETTE
RCI-3.0UFE1NH
RCI-3.5UFE1NH
RCI-4.0UFE1NH
RCI-5.0UFE1NH
RCI-6.0UFE1NH
RCI-6.5UFE1NH
FLOOR CEILING
RPFC-3.0UFE1NH
RPFC-3.5UFE1NH
RPFC-4.0UFE1NH
RPFC-5.0UFE1NH
RPFC-6.0UFE1NH
RPFC-6.5UFE1NH
RAS-3.0UFESNH1
RAS-3.5UFESNH1
RAS-4.0UFESNH1
RAS-5.0UFESMH1
RAS-6.0UFESMH1
RAS-6.5UFESMH1
RAS-5.0UFESNH1
RAS-6.0UFESNH1

Hitachi RAS-3.0UFESNH1 Specifications

General

Brand	Hitachi
Model	RAS-3.0UFESNH1
Category	Air Conditioner
Language	English

Summary

Option List

Wired Remote Controller Installation

Wireless Remote Controller Features

Troubleshooting

General Malfunction Troubleshooting Guide

Common issues and their solutions for normal malfunctions.

Fault Code Diagnosis and Indicators

How to interpret fault codes and indicators on the wired controller.

LED Display Panel Fault Codes

Explanation of fault codes indicated by LED lamps on the display panel.

Outdoor Unit Control Board Faults

Details on fault codes shown by LEDs on the outdoor unit's main control board.

Outdoor Unit Fault Code Reference

Comprehensive table of outdoor unit fault codes, causes, and remedies.

Indoor Unit Fault Code Reference

Comprehensive table of indoor unit fault codes, causes, and remedies.

Drive Fault Codes (3.0/3.5HP)

Reference for drive fault codes, reasons, and solutions for 3.0/3.5HP models.

Drive Fault Codes (4.0/5.0/6.0/6.5HP)

Reference for drive fault codes, reasons, and solutions for 4.0-6.5HP models.

Checking Components

Refrigerant System Check Procedure

Step-by-step guide to checking the refrigerant system using a pressure gauge.

Indoor Unit Component Checks

Outdoor Fan Motor and Compressor Checks

Disassembly and Assembly Procedures

Outdoor Unit Motor & Compressor Disassembly (3.0/3.5HP)

Detailed steps for disassembling outdoor unit motors and compressors.

Outdoor Unit Motor & Compressor Disassembly (4.0/5.0HP)

Detailed steps for disassembling outdoor unit motors and compressors.

Outdoor Unit Motor & Compressor Disassembly (6.0/6.5HP)

Detailed steps for disassembling outdoor unit motors and compressors.

Ducted Fan Motor Removal (3.0HP)

Ducted Fan Motor Removal (3.5/4.0HP)

Ducted Fan Motor Removal (5.0/6.0/6.5HP)

Cassette Fan Motor Removal

Floor Ceiling Fan Motor Removal

Control Logic Description

Cooling Mode Operation Logic

Details the running rules for indoor and outdoor fans during cooling mode.

Heating Mode Operation Logic

Auto Mode Logic and Evaporator Protection

Condenser High-Temperature Protection