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FILE NO. SVM-11016-2

SERVICE MANUAL

SPLIT TYPE
Indoor Unit
Outdoor Unit
<High Wall, Heat Pump Type>
<Heat Pump Type>
RAS-25SKVP2-ND / RAS-25SAVP2-ND
RAS-35SKVP2-ND / RAS-35SAVP2-ND
RAS-45SKVP2-ND / RAS-45SAVP2-ND
R410A
Revised Jul, 2011

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Summarization of Contents

SAFETY PRECAUTIONS
Installation and Servicing Safety
General safety guidelines, DANGER, WARNING, and CAUTION statements for installation and servicing.
SPECIFICATIONS
Unit Specifications and Performance Data
Comprehensive technical data including capacity, power, and operating characteristics.
REFRIGERANT R410A
Safety and Handling Precautions
Safety guidelines for R410A refrigerant, installation, and servicing.
Piping, Tools, and Procedures
Details on piping installation, required tools, recharging, and brazing.
CONSTRUCTION VIEWS
Indoor and Outdoor Unit Diagrams
Detailed diagrams and dimensions of indoor and outdoor units.
WIRING DIAGRAM
System Wiring Schematic
Electrical schematic showing component connections for the air conditioner.
SPECIFICATIONS OF ELECTRICAL PARTS
Electrical Component Specifications
Specifications for electrical parts in both indoor and outdoor units.
REFRIGERANT CYCLE DIAGRAM
Refrigerant Cycle and Operation Data
Schematic of refrigerant flow and tables detailing operational data.
CONTROL BLOCK DIAGRAM
Indoor and Outdoor Unit Control Logic
Block diagrams illustrating the control systems for indoor and outdoor units.
OPERATION DESCRIPTION
Control System Overview and Modes
Explains control structure, roles of units, and basic operation modes.
Component Operation Details
Describes fan motor, louver, and other component operations.
Special Operations and Remote Control
Covers special modes like ECO, Hi-POWER, and remote controller functions.
INSTALLATION PROCEDURE
Unit Placement and Diagram
Visual guides for unit placement, clearances, and diagrams.
Installation Tools and Parts
Lists optional installation parts and accessories provided with the unit.
Indoor Unit Installation Steps
Procedures for installing the indoor unit, including mounting and wiring.
Outdoor Unit and Piping Installation
Procedures for outdoor unit installation, piping, and refrigerant handling.
HOW TO DIAGNOSE THE TROUBLE
Initial Confirmation and Basic Checks
Basic confirmations, LED interpretation, and remote controller diagnostics.
Symptom-Based and Component Troubleshooting
Step-by-step guides for common issues and component checks.
Wiring and Communication Fault Diagnosis
Diagnosing errors related to wiring, signals, and communication failures.
HOW TO REPLACE THE MAIN PARTS
Indoor Unit Part Replacement
Step-by-step instructions for replacing indoor unit components.
Microcomputer and P.C. Board Replacement
Procedures for replacing the microcomputer and P.C. boards.
Outdoor Unit Part Replacement
Step-by-step instructions for replacing outdoor unit components.
EXPLODED VIEWS AND PARTS LIST
Indoor Unit Parts Breakdown
Illustrated exploded view and parts list for the indoor unit.
Outdoor Unit Parts Breakdown
Illustrated exploded view and parts list for the outdoor unit.
P.C. Board Layout Diagrams
Diagrams showing the physical layout of P.C. boards for various models.

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