Hitachi RAF-35NX2 - User Manual

AW NO. 0035EF
RAF-35NX2
RAC-35NX2
SERVICE MANUAL
TECHNICAL INFORMATION
INFORMATIONS TECHNIQUES
REFER TO THE FOUNDATION MANUAL
REPORTEZ-VOUS AU MANUEL DE BASE
ROOM AIR CONDITIONER
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT.
LES SPECIFICATIONS ET PIECES DETACHEES PEUVENT CHANGER POUR ETRE AMELIOREES.
FOR SERVICE PERSONNEL ONLY
RESERVE AU PERSONNEL
SPECIFICATIONS
CARACTERISTIQUES GENERALES
SPECIFICATIONS‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥
CARACTERISTIQUES GENERALES
HOW TO USE ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥
UTILISATION
CONSTRUCTION AND DIMENSIONAL DIAGRAM ‥‥‥‥
DIMENSIONS DES UNITÉS
MAIN PARTS COMPONENT‥‥‥‥‥‥‥‥‥‥‥‥‥‥
PRINCIPAUX COMPOSANTS
WIRING DIAGRAM‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥
SCHÉMA ÉLECTRIQUE
WIRING DIAGRAM OF THE PRINTED WIRING BOARD ‥‥‥
SCHÉMA ÉLECTRIQUE DU CIRCUIT IMPRIMÉ
BLOCK DIAGRAM‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥
ORGANIGRAMME DE CONTRÔLE
BASIC MODE‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥
MODE DE BASE
REFRIGERATING CYCLE DIAGRAM ‥‥‥‥‥‥‥‥‥ 
SCHÉMA DU CYCLE DE RÉFRIGÉRATION
DISASSEMBLY & ASSEMBLY PROCEDURE‥‥‥‥‥‥
PROCÉDURE D'ASSEMBLAGE ET DESASSEMBLAGE
DESCRIPTION OF MAIN CIRCUIT OPERATION
‥‥‥‥
DESCRIPTION DES PRINCIPAUX CIRCUITS
SERVICE CALL Q&A ‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥
MODE OPERATOIRE DE DEPANNAGE
TROUBLE SHOOTING‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥‥
DETECTION DES PANNES
PARTS LIST AND DIAGRAM‥‥‥‥‥‥‥‥‥‥‥‥‥
LISTE DES PIÉCES DE RECHANGE
CONTENTS
TABLE DES MATIERES
INDOOR UNIT + OUTDOOR UNIT
JUNE 2010 Hitachi Household Appliances(Wuhu) Co., Ltd.
32
36
38
40
129
137
189
OUTDOOR UNIT
UNITÉ EXTÉRIEURE
RAF-35NX2
RAC-35NX2
INDOOR UNIT
UNITÉ INTÉRIEURE
※After installation Après installation
760
600
235
14
750 (+91)※
288 (+47)※
RAF-35NX2
TYPE TYPE
MODEL MODÈLE
POWER SOURCE 
SOURCE D'ALIMENTATION(PHASE/TENSION/FREQUENCE)
TOTAL INPUT PUISSANCE ABSORBEE TOTALE (W)
TOTAL AMPERES AMPERES TOTAUX (A)
CAPACITY CAPACITE
(kW)
(B.T.U./h)
TOTAL INPUT PUISSANCE ABSORBEE TOTALE (W)
TOTAL AMPERES AMPERES TOTAUX (A)
CAPACITY CAPACITE
(kW)
(B.T.U./h)
W, L
DIMENSIONS DIMENSIONS (mm) H, H
D, P
NET WEIGHT POIDS NET (kg)
DC INVERTER INVERSEUR C.C.
INDOOR UNIT
UNITÉ INTÉRIEURE
OUTDOOR UNIT
UNITÉ EXTÉRIEURE
1ø, 220V - 230V, 50Hz
11,940 (3,070 - 13,650)
1,100 (115 - 1,440)
COOLING
RÉFRIGÉRATION
HEATING
CHAUFFAGE
RAC-35NX2
1,090 (155 - 1,460)
5.22- 4.99
3.5 (0.9 - 4.0)
5.32 - 5.09
4.2 (0.9 - 5.0)
14,330 (3,070 - 17,060)
548
35
9
10
45
47
61
63
73

Summary

Safety Precautions

Safety During Repair Work

Essential safety guidelines for repair tasks.

General Safety Precautions

Critical safety measures for unit operation.

Part Identification and Basic Operation

Names and Functions of Each Part

Identifies and describes indoor/outdoor unit components.

Operating Modes and Basic Functions

Details on heating, cooling, fan, and timer operations.

Maintenance and Cleaning Procedures

Air Filter and Front Panel Maintenance

Instructions for cleaning the air filter and front panel.

Unit Cleaning and Long-Term Storage

Guidance on cleaning the unit and preparing for storage.

Technical Specifications and Diagrams

Specifications and Dimensions

Electrical, capacity, and physical size details.

Electrical Diagrams and Block Diagrams

Wiring, circuit, and system block diagrams.

Circuit Descriptions and Analysis

Power Circuit Operation

Explanation of the power supply circuit.

Peripheral and Control Circuits

Details on reset, fan motor, and interface circuits.

IPM and Overload Control

Diagnosis and control of the Intelligent Power Module.

Troubleshooting and Fault Finding

Timer Lamp Blinking Codes

Interpreting timer lamp blinking for fault diagnosis.

General Troubleshooting Flowcharts

Step-by-step guides for diagnosing unit issues.

Self-Diagnosis System

Explanation of the self-diagnosis function and indicators.

Hitachi RAF-35NX2 Specifications

General

Type	Split System
Cooling Capacity	3.5 kW
Heating Capacity	4.0 kW
Refrigerant	R410A
Power Supply	220-240V, 50Hz
Indoor Unit Weight	9.5 kg
Air Flow (Indoor)	580 m³/h