Hitachi RAS-07GH4 User Manual

NO. 0193E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
DECEMBER 2003 Refrigeration & Air-Conditioning Division
SERVICE MANUAL
PM
REFER TO THE FOUNDATION MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
(W)
(A)
(kW)
(B.T.U./h)
(W)
(A)
(kW)
(B.T.U./h)
W
H
D
(kg)
(WALL TYPE)
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
CAPACITY
TOTAL INPUT
TOTAL AMPERES
CAPACITY
DIMENSIONS
(mm)
NET WEIGHT
SPECIFICATIONS
CONTENTS
SPECIFICATIONS ----------------------------------------------------- 5
HOW TO USE ---------------------------------------------------------- 6
CONSTRUCTION AND DIMENSIONAL DIAGRAM ------- 29
MAIN PARTS COMPONENT ------------------------------------- 31
WIRING DIAGRAM -------------------------------------------------- 33
CIRCUIT DIAGRAM ------------------------------------------------- 35
PRINTED WIRING BOARD LOCATION DIAGRAM ------- 37
BLOCK DIAGRAM --------------------------------------------------- 39
BASIC MODE --------------------------------------------------------- 41
REFRIGERATING CYCLE DIAGRAM ------------------------- 47
DESCRIPTION OF MAIN CIRCUIT OPERATION --------- 49
AUTO SWING FUNCTION ---------------------------------------- 53
SERVICE CALL Q & A -------------------------------------------- 54
PARTS LIST AND DIAGRAM ------------------------------------ 63
RAS-07GH4 / RAC-07GH4
RAS-09GH4 / RAC-09GH4
RAS-14GH4 / RAC-14GH4
COOLING
HEATING
INDOOR UNIT
RAS-07GH4
780
280
210
9.0
After installation
RAS-07GH4
RAS-09GH4
RAS-14GH4
RAC-14GH4
RAC-07GH4
RAC-09GH4
OUTDOOR UNIT
RAC-07GH4
INDOOR UNIT
RAS-09GH4
OUTDOOR UNIT
RAC-09GH4
INDOOR UNIT
RAS-14GH4
OUTDOOR UNIT
RAC-14GH4
700
570
210
32
750
570
280
38
780
280
210
9.0
700
570
210
32
780
280
210
9.0
1 PHASE, 50 Hz, 220-230-240V
590-610-630
2.80-2.80-2.80
2.10
7,160
490-510-530
2.30-2.30-2.30
2.20
7,500
1 PHASE, 50 Hz, 220-230-240V
890-900-950
4.20-4.10-4.10
2.90
9,900
740-770-810
3.50-3.50-3.50
3.00
10,230
1 PHASE, 50 Hz, 220-230-240V
1060-1090-1120
5.00-5.00-4.90
3.50
11,940
960-1000-1050
4.60-4.60-4.60
3.85
13,140

Hitachi RAS-07GH4 Specifications

General

Brand	Hitachi
Model	RAS-07GH4
Category	Air Conditioner
Language	English

Summary

SAFETY AND PRECAUTIONS

SAFETY DURING REPAIR WORK

Essential safety measures for service personnel.

SEMICONDUCTOR HANDLING STANDARDS

Guidelines to prevent semiconductor damage during handling.

GENERAL SAFETY PRECAUTIONS

Important warnings and cautions for unit operation and maintenance.

SPECIFICATIONS

SPECIFICATIONS TABLE

Detailed electrical and physical specs for all models.

CONSTRUCTION AND DIMENSIONAL DIAGRAMS

Visual representation of unit dimensions and installation.

REFRIGERANT CYCLE DIAGRAM

Diagram illustrating the refrigerant flow.

PART IDENTIFICATION AND MAINTENANCE

NAMES AND FUNCTIONS OF EACH PART

Identifies indoor and outdoor unit components and their functions.

MAINTENANCE PROCEDURES

Steps for cleaning filters and general upkeep.

MAIN PARTS COMPONENT DETAILS

Specifications for key internal components like thermostat, motors.

REMOTE CONTROL AND OPERATION MODES

REMOTE CONTROLLER FUNCTIONS

Explains the remote control interface and buttons.

OPERATING MODES (AUTOMATIC, HEATING, COOLING, FAN)

Guides for various operational modes.

TIMER AND SLEEP SETTINGS

How to set various timers including sleep.

DIAGRAMS AND TROUBLESHOOTING

WIRING AND CIRCUIT DIAGRAMS

Electrical diagrams for the unit and remote control.

BLOCK DIAGRAM

Functional block diagram of the system.

SERVICE CALL Q & A

Common issues and solutions for various operations.

TROUBLE-SHOOTING GUIDE

Flowcharts for diagnosing and fixing problems.

PARTS LIST

INDOOR UNIT PARTS LIST

List of parts for indoor units.

OUTDOOR UNIT PARTS LIST

List of parts for outdoor units.