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INSTALLATION MANUAL

AIR CONDITIONER (SPLIT TYPE)

Indoor unit

RAS-18, 22SKV(R) Series
Cover 1110651154.indd 1
Cover 1110651154.indd 1

Outdoor unit

RAS-18, 22SAV Series
1110651154
1/22/10 11:14:26 AM
1/22/10 11:14:26 AM

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Table of Contents
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Summarization of Contents

Toshiba Air Conditioner Installation Safety Precautions
General Public Use Safety Guidelines
Safety guidelines for power supply cords and wiring regulations for general users.
New Refrigerant Air Conditioner Installation Safety
Precautions for HFC refrigerant R410A, risks of impurities, and required tools.
General Installation Cautions and Requirements
Warnings on water exposure, vibration, noise, power, drainage, sharp edges, and reporting to power supplier.
Installation Diagram and Components
Optional Installation Parts Overview
Details of optional parts like refrigerant piping, insulating material, and tapes for installation.
Outdoor Unit Fixing Bolt Arrangement
Instructions for securing the outdoor unit with bolts, anchor bolts, and drain nipple.
Indoor Unit Installation Procedures
Indoor Unit Installation Place Selection
Guidelines for choosing an appropriate location for the indoor unit, considering space and obstacles.
Remote Control Placement Recommendations
Advice on optimal placement of the remote control for effective signal reception.
Cutting Hole and Mounting Installation Plate
Steps for drilling holes and mounting the indoor unit's installation plate on the wall.
Wiring and Piping Connections
Connecting Cable Installation
Detailed steps for connecting the connecting cable to the indoor unit's terminal block.
Drain Hose and Cap Handling
Instructions on removing and fixing the drain hose and drain cap for proper drainage.
Piping and Drain Hose Installation
Guidance on arranging pipes, forming drain hoses, and ensuring proper slope for drainage.
Electrical Work Requirements
Specifications for power supply voltage and preparation of an exclusive power source.
Outdoor Unit Installation Considerations
Outdoor Unit Installation Place Guidelines
Criteria for selecting an outdoor unit location, considering space, noise, wind, and gas leaks.
Installation in Snowfall and Cold Regions
Recommendations for preventing snow accumulation and protecting the outdoor unit in cold climates.
Refrigerant Piping and Vacuuming
Refrigerant Piping Connection Procedure
Detailed steps for flaring, connecting, and tightening refrigerant pipes with specified torque.
Evacuating Refrigerant Lines
Procedure for evacuating air from connecting pipes and the indoor unit using a vacuum pump.
Packed Valve Handling Precautions
Important steps and precautions for handling packed valves during installation and operation.
Final Checks and Special Functions
Gas Leak Test Procedure
Method for checking refrigerant gas leaks at flare nut connections using a detector or soap water.
Test Operation Mode
Instructions on how to switch the unit to TEST RUN (COOL) mode for initial testing.
Remote Control A-B Selection
Procedure for setting remote control to A or B for multi-indoor unit installations.
Auto Restart Setting Configuration
How to enable or disable the auto restart function after a power failure.

Table of Contents