Hitachi RAS-14CH4 User Manual

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
MARCH 2004 H.A.P.M.
REFER TO THE FOUNDATION MANUAL
CONTENTS
SPECIFICATIONS ............................................................... 5
SAFETY PRECAUTION ...................................................... 6
HOW TO USE ..................................................................... 8
CONSTRUCTION AND DIMENSIONAL DIAGRAM ........ 27
MAIN PARTS COMPONENT ............................................ 28
WIRING DIAGRAM ........................................................... 30
BASIC MODE .................................................................... 35
AUTO SWING FUNCTION ............................................... 39
REFRIGERATING CYCLE DIAGRAM .............................. 40
SERVICE CALL Q & A ..................................................... 42
TROUBLESHOOTING ....................................................... 47
PARTS LIST AND DIAGRAM ........................................... 49
RAS-14CH4
RAC-14CH4
RAS-14CH4
RAC-14CH4
TYPE
WALL TYPE
INDOOR UNIT OUTDOOR UNIT
MODEL RAS-14CH4 RAC-14CH4
POWER SOURCE 1Ø, 220 V, 50 Hz
TOTAL INPUT (W) 1,290
COOLING
TOTAL AMPERES (A) 6.0
CAPACITY
(kW) 3.55
(B.T.U./h) 12,120
TOTAL INPUT (W) 1,370
HEATING
TOTAL AMPERES (A) 6.30
CAPACITY
(kW) 4.10
(B.T.U./h) 14,000
W 815 820
DIMENSIONS (mm) H 298 520
D 179 280
NET WEIGHT (kg) 8 39
SPECIFICATIONS
❈ After installation
SERVICE MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
PM
NO. 0204E
RAS-14CH4
RAC-14CH4

Hitachi RAS-14CH4 Specifications

General

Cooling Capacity	3.5 kW
Heating Capacity	4.0 kW
Power Supply	220-240V, 50Hz
Type	Split
Outdoor Unit Dimensions (W x H x D)	780 x 540 x 250 mm

Summary

Safety During Repair Work

Semiconductor Handling Standards

Detailed Component Specifications

General Safety Precautions

Component Identification

Indoor Unit Parts

Names and functions of components within the indoor unit.

Outdoor Unit Parts

Names and functions of components within the outdoor unit.

Remote Controller Functions

Remote Controller Operation

Details on buttons and their functions on the remote control.

Automatic Operation

Automatic Operation Conditions

Conditions and settings for automatic operation based on room temperature.

Heating Operation Guide

Dehumidifying Operation Guide

Cooling Operation Guide

Timer Setting Procedures

Setting Off-Timer

Instructions for setting the timer to turn the unit off.

Setting On-Timer

Instructions for setting the timer to turn the unit on.

Air Deflector Adjustment

Upward and Downward Adjustment

How to adjust the horizontal air deflector for airflow direction.

Maintenance Procedures

Air Filter Cleaning

Step-by-step guide for cleaning the air filter and its benefits.

Construction and Dimensions

Indoor Unit Diagram and Dimensions

Detailed diagram and measurements for the indoor unit.

Main Component Specifications

Thermostat Specifications

Operational modes and temperature settings for the thermostat.

Wiring Diagram

Basic Operation Modes

Operation Mode Details

Explanation of basic modes like Fan, Cooling, Heating, and Automatic.

Refrigerating Cycle Diagram

Service Call Q&A: Cooling and Dehumidifying

Service Call Q&A: Heating and Defrosting

Troubleshooting Guide

No Operation Troubleshooting

Flowchart for diagnosing and resolving 'no operation' issues.

Self-Diagnosis with Indicator Lamp

Parts List and Diagram (Indoor Unit)

Parts List and Diagram (Outdoor Unit)