Hitachi RAC-50WPC User Manual

SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
INDOOR UNIT
SERVICE MANUAL
REFER TO THE FOUNDATION MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
SPECIFICATIONS
CONTENTS
After installation
INDOOR UNIT
RAK-50RPC
(KW)
(B.T.U./h)
(KW)
(B.T.U./h)
W
900 750(+65)
900 792(+85)
H
295 548
295 600
D
230
288(+27.5)
230 299(+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)
3310
10
NET WEIGHT (Kg)
TYPE
DC INVERTER
1 PHASE,50Hz ,220-230V
4.87-4.66
1,100 (250
1,700)
5.51-5.27
14,330 (3,070
17,060)
7.30-6.98
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)
7.93-7.59
1,660 (500
2,750)
4.20 (0.90
5.00)
6.00 (2.20
7.30)
Hitachi Household Appliances(Wuhu) Co., Ltd.
1 PHASE,50Hz ,220-230V
RAK-35RPC
RAK-50RPC
41
RAR-6N1
RAK-35RPC RAK-50RPC
RAC-35WPC RAC-50WPC
Single outdoor unit
Indoor unit
RAK-35RPC
RAK-50RPC
HHAW
NO.0096E
INDOOR UNIT
SPECIFICATIONS ------------------------------------------------------------------- 6
HOW TO USE ---------------------------------------------------------------------- 8
CONSTRUCTION AND DIMENSIONAL DIAGRAM --------------------- 28
MAIN PARTS COMPONENT --------------------------------------------------- 29
WIRING DIAGRAM ---------------------------------------------------------------- 30
CIRCUIT DIAGRAM --------------------------------------------------------------- 32
BLOCK DIAGRAM ----------------------------------------------------------------- 33
BASIC MODE ----------------------------------------------------------------------- 34
REFRIGERATING CYCLE DIAGRAM --------------------------------------- 46
DESCRIPTION OF MAIN CIRCUIT OPERATION ----------------------- 48
SERVICE CALL Q & A ----------------------------------------------------------
PROCEDURE FOR DISASSEMBLY AND REASSEMBLY-------------
VARIOUS SETTINGS -----------------------------------------------------------------
This manual describes only points that differ from
for items not described in this manual.
RAM-40NP2B（PM NO.0582E）
RAM-53NP2B,RAM-53NP3B（PM NO.0583E）
RAM-110NP6B
（PM NO.0584E）RAM-68NP3B
（PM NO.0585E）RAM-70NP4B
（PM NO.0586E）RAM-90NP5B
（PM NO.0587E）
PARTS LIST AND DIAGRAM -------------------------------------------------- 84
Multi
outdoor unit
RAM-40NP2B
o -
RAM-53NP2B
o o
RAM-53NP3B
o o
RAM-68NP3B
o o
RAM-70NP4B
o o
RAM-90NP5B
o o
RAM-110NP6B
o o
RAC-50WPC
OUTDOOR UNIT
INDOOR UNIT
RAK-35RPC
RAC-35WPC
OUTDOOR UNIT
47
56
66
RAC-35WPC，RAC-50WPC（HHAW NO.0097E）
1

Hitachi RAC-50WPC Specifications

General

Brand	Hitachi
Model	RAC-50WPC
Category	Air Conditioner
Language	English

Summary

Safety Precautions

Safety During Repair Work

Essential safety guidelines for personnel before starting repair work.

Semiconductor Handling Standards

Guidelines for safe handling of semiconductors to prevent damage.

General Safety Precautions

Comprehensive safety measures for operation, installation, and maintenance.

Specifications and Parts Information

Unit Specifications

Detailed technical specifications for the RAK-35RPC and RAK-50RPC models.

Indoor Unit Parts Identification

Identification and description of indoor unit components and their functions.

Main Parts Component Details

Specifications for key components like thermostats and fan motors.

Indoor Unit Parts List and Diagram

A visual breakdown and part number list for all indoor unit components.

Operation Guide

Preparation and Remote Controller Functions

Steps for setup, remote controller overview, and basic operation.

Operation Modes and Features

Guidance on Heating, Cooling, Dehumidifying, ECO, SLEEP, and Timer operations.

Advanced Remote Controller Settings

Procedures for changing shift values, mode locks, and display settings.

Technical Diagrams and Circuits

Construction and Dimensional Diagram

Physical dimensions and construction details of the indoor unit.

Wiring and Circuit Diagrams

Electrical wiring schematics and detailed circuit diagrams for the unit.

Block Diagram and Circuit Operations

Overview of functional blocks and descriptions of main circuit operations.

Refrigerating Cycle Diagram

Diagram illustrating the refrigerant flow for cooling and heating cycles.

Maintenance and Troubleshooting Guide

Maintenance Procedures

Steps for cleaning the front panel, air filter, and long-term storage.

Regular Inspection and Unit Information

Guidelines for periodic checks and overview of unit capabilities.

Service Call Q&A

Answers to common questions regarding operation and troubleshooting.

Troubleshooting and Self-Diagnosis

Information on self-diagnosis functions and interpreting error codes.

Failure Phenomenon Diagnosis

Systematic guides for diagnosing and resolving specific failure phenomena.