Hitachi RAS-25JX4 User Manual

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Hitachi RAS-25JX4 Specifications

General

Type	Split System
Cooling Capacity	2.5 kW
Heating Capacity	3.2 kW
Refrigerant	R410A
Weight (Indoor Unit)	9 kg
Power Supply	220-240V, 50Hz
Outdoor Unit Dimensions (W x H x D)	780 x 540 x 290 mm
Noise Level (Indoor)	42 dB(A)
Noise Level (Outdoor)	50 dB(A)

Summary

SAFETY DURING REPAIR WORK

SAFETY PRECAUTIONS

General safety guidelines for handling and operating the unit.

TECHNICAL SPECIFICATIONS

MAIN PARTS COMPONENT

Identification and description of key internal components.

PARTS LIST AND DIAGRAM

Detailed breakdown of all parts with visual identification.

OPERATING MODES AND FUNCTIONS

BASIC MODE

Explanation of fundamental operating modes (Cooling, Heating, Auto).

Cooling Operation

Detailed explanation of the cooling cycle and its parameters.

Heating Operation

Detailed explanation of the heating cycle and its parameters.

CONSTRUCTION AND DIMENSIONAL DIAGRAM

INDOOR UNIT

Visual layout and dimensional details of the indoor unit.

OUTDOOR UNIT

Visual layout and dimensional details of the outdoor unit.

WIRING DIAGRAM

PRINTED WIRING BOARD LOCATION DIAGRAM

Visual guide to component placement on printed circuit boards.

DESCRIPTION OF MAIN CIRCUIT OPERATION

Detailed explanation of the function of main electrical circuits.

TROUBLE SHOOTING

SELF-DIAGNOSIS LIGHTING MODE

Indicators and their meanings for diagnosing operational faults.

CHECKING THE INDOOR/OUTDOOR UNIT ELECTRICAL PARTS

Procedures for inspecting electrical components to identify issues.

PROCEDURE FOR DISASSEMBLY AND REASSEMBLY

INDOOR UNIT DISASSEMBLY

Step-by-step instructions for dismantling the indoor unit.

OUTDOOR UNIT DISASSEMBLY

Step-by-step instructions for dismantling the outdoor unit.