Hitachi RAS-25WX8 User Manual

HHAW
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
NO. 0015EF
RAS-25WX8 / RAC-25WX8
RAS-35WX8 / RAC-35WX8
RAC-25WX8
RAC-35WX8
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
MARCH 2008 Hitachi Appliances, Inc.
9
10
34
38
40
42
47
50
63
65
69
127
135
183
OUTDOOR UNIT
UNITÉ EXTÉRIEURE
INDOOR UNIT
UNITÉ INTÉRIEURE
ĆAfter installation Après installation

RAS-25WX8
RAS-35WX8
RAS-25WX8 RAC-25WX8
EPYTEPYT
MODEL MODÈLE
POWER SOURCE
SOURCE D'ALIMENTATION (PHASE/TENSION/FREQUENCE)
TOTAL INPUT PUISSANCE ABSORBEE TOTALE (W)
TOTAL AMPERES )A(XUATOTSEREPMA
CAPACITY CAPACITE
(kW)
(B.T.U./h)
TOTAL INPUT PUISSANCE ABSORBEE TOTALE (W)
TOTAL AMPERES )A(XUATOTSEREPMA
CAPACITY CAPACITE
(kW)
(B.T.U./h)
W, L
DIMENSIONS DIMENSIONS (mm) H, H
D, P
)gk(TENSDIOPTHGIEWTEN
DC INVERTER INVERSEUR C.C.
INDOOR UNIT
UNITÉ INTÉRIEURE
OUTDOOR UNIT
UNITÉ EXTÉRIEURE
COOLING
RÉFRIGÉRATION
HEATING
CHAUFFAGE
RAS-35WX8 RAC-35WX8
INDOOR UNIT
UNITÉ INTÉRIEURE
OUTDOOR UNIT
UNITÉ EXTÉRIEURE
1ø, 220V - 230V, 50Hz
580(155-1,290)
3.11-2.97
2.5(0.9-3.1)
8,530(3,070-10,580)
790(115-1,250)
3.99-3.82
3.4(0.9-4.4)
11,600(3,070-15,010)
795 750(+91)
Ć
295 548
198 288(+47)
Ć
9.5 35
4.2˄0.9-5.0˅
14,330˄3,070-17,060˅
980(155-1,460)
4.69-4.49
3.5(0.9-4.0)
11,940(3,070-13,650)
1,010(115-1,440)
4.84-4.63
795
750(+91)
Ć
295
548
198
288(+47)
Ć
9.5
35

Hitachi RAS-25WX8 Specifications

General

Brand	Hitachi
Model	RAS-25WX8
Category	Air Conditioner
Language	English

Summary

Product Specifications

Safety Precautions

Installation, Operation, and Maintenance Safety

Comprehensive safety guidelines for all unit handling phases.

Electrical System Diagrams

Wiring Diagrams

Shows wiring connections for units and printed boards.

Block and Circuit Diagrams

Depicts system blocks and main circuit operations.

Interface Circuits

Describes communication circuits between indoor and outdoor units.

Refrigeration Cycle Diagrams

Cooling Cycle Diagram

Heating Cycle Diagram

Disassembly and Reassembly Procedures

Main Circuit Operation

Power and Reset Circuits

Explains the power supply and reset circuit operations.

Temperature Sensing Circuits

Explains room and heat exchanger thermistor circuits.

Fan Motor, Buzzer, and Receive Circuits

Describes circuits for fan motor drive, buzzer, and signal reception.