Hitachi RAM-40QH5 User Manual

RAM-40QH5
NO. 0270E
SPECIFICATIONS AND PARTS ARE SUBJECT TO CHANGE FOR IMPROVEMENT
ROOM AIR CONDITIONER
OUTDOOR UNIT
AUGUST 2005 Refrigeration & Air-Conditioning Division
SERVICE MANUAL
PM
REFER TO THE FOUNDATION MANUAL
TECHNICAL INFORMATION
FOR SERVICE PERSONNEL ONLY
CONTENTS
SPECIFICATIONS ------------------------------------------------------------------- 5
INSTALLATION ----------------------------------------------------------------------- 8
CONSTRUCTION AND DIMENSIONAL DIAGRAM --------------------- 12
MAIN PARTS COMPONENT --------------------------------------------------- 13
CAPACITY DIAGRAM ------------------------------------------------------------ 15
WIRING DIAGRAM ---------------------------------------------------------------- 20
CIRCUIT DIAGRAM --------------------------------------------------------------- 21
BLOCK DIAGRAM ----------------------------------------------------------------- 25
BASIC MODE ----------------------------------------------------------------------- 27
REFRIGERATING CYCLE DIAGRAM --------------------------------------- 40
DESCRIPTION OF MAIN CIRCUIT OPERATION ----------------------- 42
TROUBLE SHOOTING ----------------------------------------------------------- 66
PARTS LIST AND DIAGRAM -------------------------------------------------- 82
RAM-40QH5
After installation
750
570
280
40
(W)
(A)
COOLING CAPACITY
DC INVERTER DUAL SYSTEM MULTI
TYPE
MODEL
POWER SOURCE
TOTAL INPUT
TOTAL AMPERES
SPECIFICATIONS
OUTDOOR UNIT
RAM-40QH5
HEATING CAPACITY
DIMENSIONS (mm)
NET WEIGHT
1ø, 220 - 240V, 50Hz
W
H
D
(kg)
(kW)
(B.T.U.)
REFER TO THE SPECIFICATIONS PAGE

Hitachi RAM-40QH5 Specifications

General

Brand	Hitachi
Model	RAM-40QH5
Category	Air Conditioner
Language	English

Summary

Unit Specifications

General Specifications

Technical details and operating parameters of the outdoor unit.

Indoor Unit Combination Capacity Specs

Unit Construction and Diagrams

Construction and Dimensional Diagrams

Diagrams showing the physical dimensions and construction of the outdoor unit.

Main Parts and Component Details

Performance Data and Diagrams

Capacity vs. Temperature Diagrams

Graphs showing cooling and heating capacity relative to ambient temperature.

Capacity vs. Piping Length Diagrams

System Circuits and Operation

Wiring and Circuit Diagrams

Electrical wiring schematic and circuit diagrams for the outdoor unit.

Block Diagram and Operating Modes

Detailed Circuit Operations

Troubleshooting and Maintenance

Electrical Parts Troubleshooting

Step-by-step guide for diagnosing outdoor unit electrical issues.

Self-Diagnosis and Safety Procedures

Refrigerating Cycle and Power Module Troubleshooting

Parts Information

Parts List and Diagram

Illustrated list of all replaceable parts for the outdoor unit.