Toshiba RAS-5M34UAV-E1 Installation Manual Download Page 3

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Toshiba XXXXXXX(<SanSerif1>X/X)

Outdoor Unit

Installation Manual

INSTALLATION/SERVICE TOOLS

Changes in the product and components

In air conditioners using R410A, in order to prevent any other refrigerant from being accidentally charged, the service port diameter size of the outdoor unit service
valve has been changed. (1/2 UNF 20 threads per inch)
• In order to increase the pressure resisting strength of the refrigerant piping, flare processing diameter and opposing flare nuts sizes have been changed. (for

copper pipes with nominal dimensions 1/2 and 5/8)

WARNING

• Installation work must be requested from the supplying retail dealership or professional vendors. Self-installation may cause water leakage, electrical shock,

or fire as a result of improper installation.

• Specified tools and pipe parts for model R410A are required, and installation work must be done in accordance with the manual. HFC type refrigerant R410A

has 1.6 times more pressure than that of conventional refrigerant (R22). Use the specified pipe parts, and ensure correct installation, otherwise damage and/

or injury may be caused. At the same time, water leakage, electrical shock, and fire may occur.

• Be sure to install the unit in a place which can sufficiently bear its weight. If the load bearing of the unit is not enough, or installation of the unit is improper,

the unit may fall and result in injury.

• Electrical work must be performed by a qualified electrical engineer in accordance with the code governing such installation work, internal wiring regulations,

and the manual. A dedicated circuit and the rated voltage must be used. Insufficient power supply or improper installation may cause electrical shock or fire.

• Use a cabtyre cable to connect wires in the indoor/outdoor units. Midway connection, stranded wire, and single-wire connections are not allowed. Improper

connection or fixing may cause a fire.

• Wiring between the indoor unit and outdoor units must be well shaped so that the cover can be firmly placed. Improper cover installation may cause increased

heat, fire, or electrical shock at the terminal area.

• Be sure to use only approved accessories or the specified parts. Failure to do so may cause the unit to fall, water leakage, fire or electrical shock.

• After the installation work, ensure that there is no leakage of refrigerant gas. If the refrigerant gas leaks out of the pipe into the room and is heated by fire or

something else from a fan heater, stove or gas range, it causes generation of poisonous gas.

• Make sure the equipment is properly earthed. Do not connect the earth wire to a gas pipe, water pipe, lightning conductor, or telephone earth wire. Improper

earth work may be the cause of electrical shock.

• Do not install the unit where flammable gas may leak. If there is any gas leakage or accumulation around the unit, it can cause a fire.

• Do not select a location for installation where there may be excessive water or humidity, such as a bathroom. Deterioration of insulation may cause electrical

shock or fire.

• Installation work must be performed following the instructions in this installation manual. Improper installation may cause water leakage, electrical shock or

fire. Check the following items before operating the unit.

- Be sure that the pipe connection is well placed and there are no leaks.

- Check that the service valve is open. If the service valve is closed, it may cause overpressure and result in compressor damage. At the same time, if there

is a leak in the connection part, it may cause air suction and overpressure, resulting in burst or injury.

• The following must be certainly done during pump down.

•Do not incorporate air into the refrigeration cycle.

•Close the 2 service valves. Stop the compressor and remove the refrigerant pipe.

If the refrigerant pipe is removed when the compressor is operating and service valves are opened, the refrigerant cycle will inhale unwanted matter such as

air and the pressure in the cycle becomes abnormally elevated. It may cause a burst or injury.

• Do not modify the power cable, connect the cable midway, or use a multiple outlet extension cable. Doing so may cause contact failure, insulation failure, or

excess current, resulting in fire or electrical shock.

• If you detect any damage, do not install the unit. Contact your supplying dealer immediately.

• Never modify this unit by removing any of the safety guards or bypassing any of the safety interlock switches.

CAUTION

• Please read this installation manual carefully before installing the unit. It contains further important instructions for proper installation.

• Exposure of unit to water or other moisture before installation could result in electric shock. Do not store it in a wet basement or expose to rain or water.

• After unpacking the unit, examine it carefully for possible damage.

• Do not install in a place that can increase the vibration of the unit. Do not install in a place that can amplify the noise level of the unit or where noise and

discharged air might disturb neighbours.

• This appliance must be connected to the main power supply by means of a circuit breaker depending on the place where the unit is installed. Failure to do so

may cause electrical shock.

• Follow the instructions in this installation manual to arrange the drain pipe for proper drainage from the unit. Ensure that drained water is discharged. Improper

drainage can result in water leakage, causing water damage to furniture.

• Tighten the flare nut with a torque wrench using the prescribed method. Do not apply excess torque. Otherwise, the nut may crack after a long period of usage

and it may cause the leakage of refrigerant.

• Wear gloves (heavy gloves such as cotton gloves) for installation work. Failure to do so may cause personal injury when handling parts with sharp edges.

• Do not touch the air intake section or the aluminium fins of the outdoor unit. It may cause injury.

• Do not install the outdoor unit in a place which can be a nest for small animals. Small animals could enter and contact internal electrical parts, causing a failure

or fire.

• Request the user to keep the place around the unit tidy and clean.

• Make sure to conduct a trial operation after the installation work, and explain how to use and maintain the unit to the customer in accordance with the manual.

Ask the customer to keep the operation manual along with the installation manual.

REQUIREMENT OF REPORT TO THE LOCAL POWER SUPPLIER

Please make absolutely sure that the installation of this appliance is reported to the local power supplier before installation. If you experience any problems or
if the installation is not accepted by the supplier, the service agency will take adequate countermeasures.

Gauge manifold for R410A

Phillips screwdriver

Pipe cutter

Flare tool for R410A

Charge hose for R410A

Level

Torque wrench

4mm hexagonal wrench

Vacuum pump for R410A

Scale

Wrench (or spanner)

Gas leakage detector for R410A