Hitachi RAC-35WPE User Manual

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
OUTDOOR UNIT
SERVICE MANUAL
REFER TO THE FOUNDATION MANUAL
TECHNICAL INFORMATION
SPECIFICATIONS
CONTENTS
SPECIFICATIONS ------------------------------------------------------------------- 6
CONSTRUCTION AND DIMENSIONAL DIAGRAM ---------------------- 9
MAIN PARTS COMPONENT --------------------------------------------------- 11
WIRING DIAGRAM ---------------------------------------------------------------- 13
After installation
BLOCK DIAGRAM ----------------------------------------------------------------- 16
REFRIGERATING CYCLE DIAGRAM --------------------------------------- 17
DESCRIPTION OF MAIN CIRCUIT OPERATION ----------------------- 20
SERVICE CALL Q & A ---------------------------------------------------------- 37
TROUBLE SHOOTING ------------------------------------------------------------41
OUTDOOR UNIT
PROCEDURE FOR DISASSEMBLY AND REASSEMBLY-------------19
PARTS LIST AND DIAGRAM
--------------------------------------------------56
NO.0120E
RAC-18WPE
RAC-42WPE
Johnson Controls-Hitachi Air Conditioning Wuhu Co., Ltd.
JCH-WH
OUTDOOR UNITOUTDOOR UNIT OUTDOOR UNIT
RAC-25W
RAC-42W
(KW)
(B.T.U./h)
(KW)
(B.T.U./h)
W
750(+65)
792(+85)
H
548
600
D
288(+27.5)
299(+47)
MODEL
POWER SOURCE
TOTAL INPUT (W
TOTAL AMPERES (A)
CAPACITY
COOLING
HEATING
TOTAL INPUT (W
TOTAL AMPERES (A)
CAPACITY
DIMENSIONS
(mm)
1,120 (300 1,700)
32.5
NET WEIGHT
TYPE
DC INVERTER
1 PHASE,50H z ,220-230V
5.10-4.88
4.20 (1.70 5.00)
14,330 (5,800 17,060)
18,430 (5,800 20,470)
5.99-5.73
1,317 (500 2,100)
5.40 (1.70 6.00)
PE RAC-18W
750(+65)
548
288(+27.5)
419 (250 1,010)
32.5
1 PHASE,50H z ,220-230V
2.46-2.35
519 (250 970)
2.93-2.81
8,530 (3,070 10,920)
2.00 (0.90 2.5)
6,820 (3,070 8,530)
2.50 (0.90
3.20)
733 (250 1500)
3.87-3.71
11,600 (3,070 15,010)
8,530 (3,070 10,580)
3.40 (0.90
4.40)
PE RAC-35W
750(+65)
548
288(+27.5)
941 (250
1,460)
32.5
1 PHASE,50H z ,220-230V
4.81-4.60
1,000 (250 1,700)
5.11-4.89
14,330 (3,070 17,060)
3.50 (0.90 4.00)
11,940 (3,070 13,650)
4.20 (0.90
5.00)
PE
PE
1 PHASE,50H z ,220-230V
549 (250 1,290)
3.08-2.95
2.50 (0.90
3.10)
39
OUTDOOR UNIT OUTDOOR UNIT
RAC-50W
792(+85)
600
299(+47)
1,471 (300
2,100)
6.69-6.40
5.00 (1.90 5.20)
17,060 (6,480 17,740)
20,470 (7,510 24,910)
7.09-6.78
1,558 (500 2,750)
6.00 (2.20 7.30)
PE
1 PHASE,50H z ,220-230V
39
FOR SERVICE PERSONNEL ONLY
RAC-25WPE
RAC-35WPE
RAC-50WPE
RA
C-18WPE
RAC-25WPE
RAC-35WPE
RAC-42WPE
RAC-50WPE
1

Hitachi RAC-35WPE Specifications

General

Brand	Hitachi
Model	RAC-35WPE
Category	Air Conditioner
Language	English

Summary

Specifications

Safety During Repair Work

Working Standards for Preventing Breakage of Semiconductors

Handling Precautions

Details essential precautions for handling sensitive electronic parts.

Cautions and Warnings

Power Circuit Safety

Details safety procedures for working with the power circuit.

Wiring Diagram

Block Diagram

Refrigerating Cycle Diagram

Cooling Cycle

Illustrates the refrigerating cycle during cooling operation.

Heating Cycle

Illustrates the refrigerating cycle during heating operation.

Procedure for Disassembly and Reassembly

Electrical Parts Disassembly

Step-by-step guide for disassembling electrical parts.

Description of Main Circuit Operation

Power Circuit

Explanation of the main power circuit operation.

Power Circuit (Low Voltage)

Control Circuits

Reversing Valve (4-Way Valve) Control

Temperature Detection Circuit

Electric Expansion Valve Circuit

Outdoor DC Fan Motor Control Circuit

Service Call Q&A

Troubleshooting

Inspection Instructions

Troubleshooting Support

Self-Diagnosis Lighting Modes

Details self-diagnosis modes and their meanings.

Checking the Refrigerating Cycle

Troubleshooting Procedure

Procedure to check the refrigerating cycle for gas leaks or defects.

Parts List and Diagram

Indoor Unit Parts List

Outdoor Unit Parts List