Hitachi RAK-14PECI - User Manual

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT + OUTDOOR UNIT
SERVICE MANUAL
REFER TO THE FOUNDATION MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
SPECIFICATIONS
CONTENTS
SPECIFICATIONS ------------------------------------------------------------------- 6
HOW TO USE ----------------------------------------------------------------------- 9
CONSTRUCTION AND DIMENSIONAL DIAGRAM --------------------- 18
MAIN PARTS COMPONENT --------------------------------------------------- 21
WIRING DIAGRAM ---------------------------------------------------------------- 23
CIRCUIT DIAGRAM --------------------------------------------------------------- 25
After installation
BLOCK DIAGRAM ----------------------------------------------------------------- 28
BASIC MODE ----------------------------------------------------------------------- 29
REFRIGERATING CYCLE DIAGRAM --------------------------------------- 39
DESCRIPTION OF MAIN CIRCUIT OPERATION ----------------------- 45
SERVICE CALL Q & A ---------------------------------------------------------- 70
TROUBLE SHOOTING ----------------------------------------------------------- 73
PARTS LIST AND DIAGRAM --------------------------------------------------105
HHAW
INDOOR UNITOUTDOOR UNIT
INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT INDOOR UNIT OUTDOOR UNIT
RAK-18PEC RAC-18WEC
RAK-25PEC
RAK-25PECC
RAC-25WEC RAC-35WEC
RAC-10WECI RAC-14WECI
RAK-10PECI
RAK-35PEC
RAK-35PECC
RAK-14PECI
RAK-50PEC
RAK-50PECC
RAK-20PECI
RAC-50WEC
RAC-20WECI
(KW)
(B.T.U./h)
(KW)
(B.T.U./h)
W 780 660(+60) 780 660(+60) 780 660(+60) 780 792(+91)
H 280 530 280 530 280 530 280 600
D 218 278(+55) 218 278(+55) 218 278(+55) 218 299(+47)
MODEL
POWER SOURCE
TOTAL INPUT (W
TOTAL AMPERES (A)
CAPACITY
COOLING
HEATING
TOTAL INPUT (W
TOTAL AMPERES (A)
CAPACITY
1,090 (250
1,460)
DIMENSIONS
(mm)
1,560 (500 2,100)
3.19-3.05
2.00 (0.90
2.50)
6,820 (3,070
8,530)
620 (250
970)
2.50 (0.90
3.20)
3.62-3.46
7.5 24.5 7.5 24.5 7.5 27.5 40
8,530 (3,070
10,920)
880 (250
1,250)
NET WEIGHT (Kg)
TYPE
DC INVERTER
1 PHASE,50Hz ,220-230V 1 PHASE,50Hz ,220-230V 1 PHASE,50Hz ,220-230V 1 PHASE,50Hz , 220-230V
580 (
700 (250 1,290)1,010)
4.56-4.36
3.40 (0.90
4.40)
11,600 (3,070
15,010)
5.41-5.18
1,100 (250
1,700)
5.36-5.13
14,330 (3,070
17,060)
3.84-3.67
2.50 (0.90
3.10)
8,530 (3,070
10,580)
7.29-6.85
3.50 (0.90
4.00) 5.00 (1.90 5.20)
11,940 (3,070
13,650) 17,060 (6,480 17,740)
20,470 (7,510
24,910)
7.56-7.23
1,660 (500
2,750)
4.20 (0.90
5.00) 6.00 (2.20 7.30)
25
0
Hitachi Household Appliances(Wuhu) Co., Ltd.
NO. 0093E
8
PROCEDURE FOR DISASSEMBLY AND REASSEMBLY------------- 42
L.H
RAK-18PEC/RAC-18WEC
RAK-35PEC/RAC-35WEC
RAK-50PEC/RAC-50WEC
RAK-25PEC/RAC-25WEC
RAK-35PECC/RAC-35WEC
RAK-50PECC/RAC-50WEC
RAK-25PECC/RAC-25WEC
RAK-14PECI/RAC-14WECI
RAK-20PECI/RAC-20WECI
RAK-10PECI/RAC-10WECI
RAK-18PEC
RAK-25PEC
RAK-35PEC
RAK-50PEC
RAK-25PECC
RAK-35PECC
RAK-50PECC
RAK-10PECI
RAK-14PECI
RAK-20PECI
RAC-18WEC
RAC-25WEC
RAC-35WEC
RAC-10WECI
RAC-14WECI
RAC-50WEC
RAC-20WECI

Summary

SAFETY DURING REPAIR WORK

Safety Precautions for Service Personnel

Essential safety guidelines for technicians performing repairs.

WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS

Handling Semiconductors Safely

Guidelines for safely handling sensitive electronic components during maintenance.

NAMES AND FUNCTIONS OF REMOTE CONTROLLER

SAFETY PRECAUTION

Operation and Maintenance Safety

Critical safety warnings for both unit operation and maintenance procedures.

MAIN PARTS COMPONENT

COMPRESSOR MOTOR

WIRING DIAGRAM

Electrical Wiring Schematics

Electrical wiring schematics essential for understanding unit connections and troubleshooting.

CIRCUIT DIAGRAM

Electronic Circuit Diagrams

Detailed circuit diagrams illustrating the electronic components and their interconnections.

BLOCK DIAGRAM

System Overview

Cooling Operation Details

Dehumidifying Operation Details

Basic Heating Operation

REFRIGERATING CYCLE DIAGRAM

Refrigerant Flow Diagrams

Diagrams illustrating the refrigerant flow for cooling and heating cycles across different models.

Procedure for Disassembly and Reassembly

Unit Disassembly Procedures

DESCRIPTION OF MAIN CIRCUIT OPERATION

Main Circuit Operations

Detailed explanation of main circuits: power, reset, fan motor, buzzer, remote control, thermistors, dip-switch, communication.

SERVICE CALL Q&A

TROUBLE SHOOTING

Inspection and Power Safety

Instructions for inspecting electrical parts and safety procedures for the power circuit.

STRUCTURE OF AN INDOOR UNIT ELECTRIC PARTS

Troubleshooting support

Self-Diagnosis Procedures

How to interpret self-diagnosis displays, memory, and lighting modes for troubleshooting.

Forced cooling operation

Forced Cooling Procedure

Diagnosis and troubleshooting of indoor electric parts, outdoor electric parts and refrigerating cycle

Troubleshooting Flowcharts

Systematic flowcharts for diagnosing unit failures based on initial symptoms and self-diagnosis.

Checking the indoor unit electrical parts

Indoor Unit Failure Analysis

How to identify sources of jamming in the reception of remote control signals

Checking the electrical parts of the outdoor unit

Outdoor Unit Failure Diagnosis

HOW TO CHANGE THE SHIFT VALUE SETTING TEMPERATURE

CHECKING THE REFRIGERATING CYCLE

Refrigerant and Compressor Checks

Troubleshooting procedure for diagnosing gas leaks and compressor defects using self-diagnosis.

How to run the product with the outdoor unit test switch

Outdoor Unit Test Operation

HOW TO OPERATE THE OUTDOOR UNIT INDEPENDENTLY

Outdoor Unit Independent Operation

Hitachi RAK-14PECI Specifications

General

Refrigerant	R32
Heating Capacity	5.0 kW
Power Supply	220-240V, 50Hz
Energy Efficiency Ratio (EER)	3.21
Coefficient of Performance (COP)	3.61
Indoor Unit Dimensions (H x W x D)	280 x 780 x 230 mm
Indoor Unit Weight	9 kg
Type	Split