Toshiba RBM-Y1123FE Installation Manual Download Page 2

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Accessory parts and Parts to be procured locally

Accessory parts

Thank you very much for purchasing TOSHIBA Super Heat Recovery Multi (S-HRM) Air conditioner.
Please read this manual carefully before using your Flow Selector unit.
• When installing an indoor or outdoor unit, follow the installation manual supplied with the unit.
• To connect the Flow Selector unit to an outdoor unit with pipes, a branching joint or header is required.

Choose one according to the capacity of the units.

• Nitrogen gas is filled in the selection unit.

ADOPTION OF NEW REFRIGERANT

This SUPER HRM Air Conditioner is a new type which adopts a new refrigerant HFC (R410A) instead of the

conventional refrigerant R22 in order to prevent destruction of the ozone layer.
Be sure to use an indoor or outdoor unit in combination with the new refrigerant.

English-1

English-2

Part name

Installation Manual

Attached wire
(For power supply)

Attached wire
(For control wiring)

Heat insulating pipe

Attached pipe

Wire joint

Q’ty RBM-

Y1123FE

Y1803FE

Y2803FE

—

Shape

—

Usage

(Be sure to hand over to customers.)
(For other languages that do not appear in this
Installation Manual, please refer to the enclosed CD-R.)

CD-ROM

—

Installation Manual

For power supply from indoor unit (3-core, 6m)

For communication with indoor unit (5-core, 6m)

For heat insulating of suction gas, discharge gas,
and gas pipe connecting sections

For heat insulating of discharge gas

For heat insulating of liquid pipe connecting section

Ø9.5 - Ø6.4, connection pipe

Ø15.9 - Ø12.7, connection pipe

Ø15.9 - Ø9.5, connection pipe

For connection with certain indoor units

CONTENTS

Accessory parts and Parts to be procured locally ...........................................1

PRECAUTIONS FOR SAFETY ......................................................................1

INSTALLATION OF NEW REFRIGERANT AIR CONDITIONER ..................2

SELECTION OF INSTALLATION PLACE .....................................................3

INSTALLATION OF FLOW SELECTOR UNIT ...............................................4

REFRIGERANT PIPING ................................................................................5

ELECTRIC WORK .........................................................................................6

PRECAUTIONS FOR SAFETY

• Ensure that all Local, National and International regulations are satisfied.
• Read this “PRECAUTIONS FOR SAFETY” carefully before Installation.
• The precautions described below include the important items regarding safety. Observe them without fail.
• After the installation work, perform a trial operation to check for any problem.

Follow the Owner’s Manual to explain how to use and maintain the unit to the customer.

• Turn off the main power supply switch (or breaker) before the unit maintenance.
• Ask the customer to keep the Installation Manual together with the Owner’s Manual.

CAUTION

New Refrigerant Air Conditioner Installation
• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY

OZONE LAYER.

The characteristics of R410A refrigerant are ; easy to absorb water, oxidizing membrane or oil, and its pressure is

approx. 1.6 times higher than that of refrigerant R22. Accompanied with the new refrigerant, refrigerating oil has

also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerat-

ing oil does not enter the refrigerating cycle.
To prevent charging an incorrect refrigerant and refrigerating oil, the sizes of connecting sections of charging port

of the main unit and installation tools are charged from those for the conventional refrigerant.
Accordingly the exclusive tools are required for the new refrigerant (R410A).
For connecting pipes, use new and clean piping designed for R410A, and please care so that water or dust does

not enter. Moreover, do not use the existing piping because there are problems with pressure-resistance force

and impurity in it.