Hitachi RAK-18PEC 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

Hitachi RAK-18PEC Specifications

General

Brand	Hitachi
Model	RAK-18PEC
Category	Air Conditioner
Language	English

Summary

WORKING STANDARDS FOR PREVENTING BREAKAGE OF SEMICONDUCTORS

Scope

Defines the scope of semiconductor handling standards.

Object parts

Lists the specific semiconductor parts covered by the standards.

Items to be observed in handling

Outlines the procedures for safe handling of semiconductors.

SAFETY PRECAUTION

PRECAUTIONS DURING OPERATION

Safety measures to follow during the operation of the unit.

PRECAUTIONS DURING SHIPPING OR MAINTENANCE

Safety steps for handling during shipping and maintenance.

CONSTRUCTION AND DIMENSIONAL DIAGRAM

OUTDOOR UNIT (RAC-18/25/35WEC, RAC-10/14WECI)

Diagrams and dimensions for specific outdoor units.

OUTDOOR UNIT (RAC-50WEC, RAC-20WECI)

Diagrams and dimensions for specific outdoor units.

PROCEDURE FOR DISASSEMBLY AND REASSEMBLY

Front Panel

Steps for removing and reattaching the indoor unit's front panel.

Front cover

Procedure for disassembling and reassembling the front cover.

Control P.W.B. and Indicating P.W.B.

SERVICE CALL Q & A

Cooling operation

Dehumidification

Heating operation

Auto-fresh defrost

Common, etc.

Troubleshooting support

Self-diagnosis display [Display on the indoor unit side]

How to interpret self-diagnosis codes from the indoor unit lamp.

Self-diagnosis display [Display on the outdoor unit side]

How to interpret self-diagnosis codes from the outdoor unit LED.

Self-diagnosis memory

How to access and use the self-diagnosis memory function.

PARTS LIST AND DIAGRAM

INDOOR UNIT

List of parts and diagrams for the indoor unit.

OUTDOOR UNIT