Toshiba RAS-M10YDV-E, RAS-M13YDCV-E, RAS-M16YDCV-E, RAS-M16YDV-E, RAS-M13YDV-E INSTALLATION MANUAL

INSTALLATION MANUAL

MANUEL DINSTALLATION

INSTALLATIONS-HANDBUCH

MANUALE DI INSTALLAZIONE

MANUAL DE INSTALACIÓN

MANUAL DE INSTALAÇÃO

ЕГЧЕЙСЙДЙП ЕГКБФБУФБУЗУ

AIR CONDITIONER (MUL TI-SPLIT TYPE) CLIMATISEUR (TYPE MULTI-SPLIT) KLIMAGERÄT (MULTI-SPLIT SYSTEM) CONDIZIONATORE D'ARIA (TIPO MULTIAMBIENTI) APARATO DE AIRE ACONDICIONADO (TIPO MULTI-SPLIT) CONDICIONADOR DE AR (TIPO COM MÚLTIPLA DIVISÃO)

КЛЙМБФЙУФЙКП (TÕÐÏÓ MULTI-SPLIT)

<Фэрпт ухгкекблхммЭнпх бгщгпэ>

Indoor Unit Outdoor Unit Unité intérieure/Raumeinheit Unité extérieure/Außeneinheit Unità interna/Unidad interior Unità esterna/Unidad exterior Unidade Interna/ЕущфесйкЮ МпнЬдб Unidade Externa/ЕощфесйкЮ МпнЬдб

Cooling Only Model Modèle à froid seul/Geräte nur zur Kühlung Modello solo per raffreddamento/Modelo de refrigeración únicamente Modelo Apenas para Refrigeração/МпнфЭлп Шэозт брпклейуфйкЬ

RAS-M10YDCV-E RAS-M18YACV-E RAS-M13YDCV-E RAS-3M23YACV-E RAS-M16YDCV-E RAS-4M27YACV-E

Heat Pump Model Modèle à thermopompe/Geräte mit Heizung Modello con pompa di riscaldamento/Modelo con bomba de calor Modelo da Bomba de Calor/МпнфЭлп ме БнфлЯб Иесмьфзфбт

RAS-M10YDV-E RAS-M18YAV-E RAS-M13YDV-E RAS-3M26YAV-E RAS-M16YDV-E RAS-4M27YAV-E

Para el uso del público en general

For general public use

A l’usage du public

Zum allgemeinen Gebrauch

Per uso pubblico generico

Para uso público em geral

Гйб чсЮуз брь фп кпйнь

Please read this Installation Manual carefully before installing the Air Conditioner. Veuillez lire attentivement ce Manuel d’installation avant d’installer le climatiseur. Bitte lesen Sie dieses Handbuch sorgfältig, bevor Sie mit der Installation des

Klimagerätes beginnen. Prima di installare il condizionatore d'aria, leggere attentamente questo Manuale di

installazione. Lea atentamente este Manual de instalación antes de proceder a la instalación del

aparato de aire acondicionado. Por favor, leia este Manual de Instalação atentamente, antes da instalação do

Condicionador de Ar.

Рбсбкблю дйбвЬуфе рспуечфйкЬ фп ЕгчейсЯдйп ЕгкбфЬуфбузт рсйн брь фзн егкбфЬуфбуз фпх Клймбфйуфйкпэ.

• This Manual describes the installation method of the indoor unit.

• For installation of the outdoor unit, follow to the Installation Manual attached to the outdoor unit.

• The supply and return air panels are to be procured locally.

• Ce manuel décrit la procédure d’installation de l’unité intérieure.

• Pour installer l’unité extérieure, repor tez-vous au Manuel d’installation fourni avec l’unité extérieure.

• Les panneaux d’alimentation en air et de retour de l’air doivent être fournis sur place.

• In diesem Handbuch wird die Installation der Raumeinheit beschrieben.

• Um die Außeneinheit zu installieren, fo lg en Sie den Anweisungen in dem Handbuch, das der Außeneinheit beiliegt.

• Die Zu- und Abluftgitter müssen bauseits bereit gestellt werden.

• Questo manuale illustra il metodo di installazione per l'unità interna.

• Per l'installazione dell'unità esterna, seguire le istruzioni del Manuale di installazione in dotazione con l'unità esterna.

• I pannelli di alimentazione e per l'aria di ritorno devono essere procurati dal cliente .

• Este manual describe el método de instalación de la unidad interior.

• Para la instalación de la unidad exterior, consulte el Manual de instalación que acompaña a la unidad exterior.

• Los paneles de aire de suministro y de retorno deberán adquirirse localmente.

• Este manual descreve o método de instalação da unidade interna.

• Para a instalação da unidade externa, siga o Manual de Instalação, entregue juntamente com a unidade externa.

• Os painéis do ar de alimentação e de retorno poderão ser obtidos no local.

 Фп рбсьн ЕгчейсЯдйп ресйгсЬцей фз мЭипдп егкбфЬуфбузт фзт еущфесйкЮт мпнЬдбт.  Гйб фзн егкбфЬуфбуз фзт еощфесйкЮт мпнЬдбт, бкплпхиЮуфе фп ЕгчейсЯдйп ЕгкбфЬуфбузт рпх рспмзиеэефбй ме фзн еощфесйкЮ

мпнЬдб.

 Фб кбрЬкйб рбспчЮт кбй ербнбцпсЬт фпх бЭсб рспмзиеэпнфбй брь фзн фпрйкЮ бгпсЬ.

PRECAUTIONS FOR SAFETY.................................... 2

SELECTION OF INSTALLATION PLACE ................... 4

INSTALLATION OF INDOOR UNIT............................. 5

AIR DUCTING WORK .................................................. 8

DRAIN PIPING WORK ............................................... 12

MESURES DE SECURITE ........................................ 19

SELECTION DU LIEU D’INSTALLATION ................. 21

INSTALLATION DE L’UNITE INTERIEURE .............. 22

INSTALLATION DES CONDUITS D’AIR................... 25

INSTALLATION DES TUYAUX D’EVACUATION ....... 29

SICHERHEITSVORKEHRUNGEN ............................ 36

AUSWAHL DES AUFSTELLUNGSORTES............... 38

INSTALLATION DER RAUMEINHEIT ....................... 39

VERLEGEN DER LüfTUNGSKANälE .................... 42

INSTALLATION DES KONDENSWASSER-ABLAUFS ..

CONTENTS

6 7 8 9

INHALT

6 7 8 9

INDICE

6 7 8 9

REFRIGERANT PIPING ............................................ 13

EVACUATING............................................................. 14

ELECTRICAL WORK ................................................ 15

INST ALLA TION/SERVICING TOOLS ........................ 17

TUYAUX DE REFRIGERANT .................................... 30

EVACUATION DE L’AIR ............................................. 31

INSTALLATION ELECTRIQUE.................................. 32

OUTILS D’INSTALLATION/D’ENTRETIEN............... 34

KühLMITTEL-LEITUNGEN....................................... 47

ENTLÜFTEN DER ROHRLEITUNGEN ..................... 48

ELEKTROINSTALLATION......................................... 49

INSTALLATIONS/WARTUNGSWERKZEUGE .......... 51

ENGLISH

PRECAUZIONI PER LA SICUREZZA....................... 53

SELEZIONE DEL LUOGO DI INSTALLAZIONE....... 55

INSTALLAZIONE DELL'UNITÀ INTERNA ................ 56

LAVORO PER IL CONDOTTO DELL'ARIA ............... 59

LAVORO PER LA TUBAZIONE DI SCARICO........... 63

PRECAUCIONES DE SEGURIDAD .......................... 70

SELECCIÓN DEL LUGAR DE INSTALACIÓN ......... 72

INSTALACIÓN DE LA UNIDAD INTERIOR .............. 73

TRABAJOS DE CANALIZACIÓN DEL AIRE ............ 76

TRABAJOS DE CANALIZACIÓN DE DESAGÜE ..... 80

PRECAUÇÕES DE SEGURANÇA............................ 87

SELEÇÃO DO LOCAL DE INSTALAÇÃO ................ 89

INSTALAÇÃO DA UNIDADE INTERNA.................... 90

TRABALHO DE CANALIZAÇÃO DO AR ................. 93

TRABALHO DE CANALIZAÇÃO DOESCOAMENTO97

INDICE

6 7 8 9

CONTENIDO

6 7 8 9

ÍNDICE

6 7 8 9

TUBAZIONE DEL REFRIGERANTE......................... 64

SPURGO.................................................................... 65

LAVORO ELETTRICO ............................................... 66

ATTREZZI PER L'INSTALLAZIONE/PER LA

MANUTENZIONE ...................................................... 68

TUBO DE REFRIGERANTE...................................... 81

EVACUACIÓN ............................................................ 82

TRABAJOS EN EL SISTEMA ELÉCTRICO ............. 83

HERRAMIENTAS DE INSTALACIÓN/REPARACIÓN85

TUBULAÇÃO DO REFRIGERANTE......................... 98

EXPURGO ................................................................. 99

SERVIÇO ELÉTRICO .............................................. 100

FERRAMENTAS DE INSTALAÇÃO/REPARO ........ 102

ITALIANSPANISHPORTUGUESEGREEK FRENCHGERMAN

РЕСЙЕЧПМЕНБ

 РСПЦХЛБОЕЙУ БУЦБЛЕЙБУ ................................. 104

ЕРЙЛПГЗ ФПХ ЧЩСПХ ЕГКБФБУФБУЗУ .............. 106

! ЕГКБФБУФБУЗ ФЗУ ЕУЩФЕСЙКЗУ МПНБДБУ .... 107

" ЕГКБФБУФБУЗ БЕСБГЩГЩН ............................... 110

# ЕГКБФБУФБУЗ УЩЛЗНЩУЕЩН БРПУФСБГГЙУЗУ114

$ УЩЛЗНЩУЕЙУ ШХКФЙКПХ ...................................... 115

% ЕККЕНЩУЗ ............................................................. 116

& ЗЛЕКФСПЛПГЙКБ .................................................. 117

' ЕСГБЛЕЙБ ЕГКБФБУФБУЗУ/ ЕРЙУКЕХЗУ ............ 119

Accessory parts and Parts to be procured locally

r Accessory parts

Part name

Wireless remote controller

Remote controller holder

Mounting screws for remote controller holder

3.5mm (diam.) x 16mm

Drain hose

Installation Manual

Q’ty

Part name

Elbow thermal-insulating cover

Batteries (Manganese)

Black screws for switch panel 4mm (diam.) x 10mm

Tapping screws for flange (2nd type) 4mm (diam.) x 8mm

Owner’s Manual

Q’ty

ShapeShape

r Parts to be procured locally

Connecting pipe (Liquid side) (6.35mm (diam.), Nominal (diam.) 1/4” thick 0.8mm)

Connecting pipe (Gas side) (12.7mm (diam.), Nominal (diam.) 1/2” thick 0.8mm)

RAS-M16YDCV-E, RAS-M16YDV-E

(9.52mm (diam.), Nominal (diam.) 3/8” thick 0.8mm)

RAS-M10YDCV-E, RAS-M10YDV-E RAS-M13YDCV-E, RAS-M13YDV-E

Power supply cord

2.5mm² (H07RN-F or 245IEC66) or 3.5mm² (AWG-12)

Connecting cable H07RN-F or 245IEC66 (1.0mm² or more)

Thermal insulation for refrigerant pipe (10mm or more, thermal insulating foam polyethylene)

Thermal insulation for drain pipe (10mm or more, foam polyethylene)

Drain pipe (Outer 26mm (diam.))

Tapes

Grounding cable (1.6mm (diam.) or more)

PRECAUTIONS FOR SAFETY

For general public use

Power supply cord of Outdoor unit shall be more than 2.5mm² (H07RN-F or 245 IEC66) polychloroprene sheathed flexible cord.

• 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 to the customer how to use and maintain the unit.

• 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 is easy to absorb water, oxidizing membrane or oil, and its pressure is approx. 1.6 times of refrigerant R22. Accompanied with adoption of the new refrigerant, refrigerating oil has been also changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigerating oil does not enter into the refrigerating cycle of new refrigerant air conditioner.

To prevent from mixing of refrigerant and refrigerating oil, the sizes of connecting sections of charging port of the main unit or installation tools are different 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 materials with high pressure-tight force, which were made for

R410A only, so that water or dust does not enter. Moreover, do not use the existing piping because there are problems about pressure-tight force and impurity it.

ENGLISH

CAUTION To Disconnect the Appliance from the Main Power Supply.

This appliance must be connected to the main power supply by means of a circuit breaker or a switch with a contact separation of at least 3 mm.

If this is not possible, a power supply plug with grounding must be used. This plug must be easily accessible after installation. The plug must be disconnected from the power supply socket in order to disconnect the appliance completely from the mains.

The installation fuse (25A D type ) must be used for the power supply line of this conditioner.

WARNINGS

• Ask an authorized dealer or qualified installation professional to install/maintain the air

conditioner.

Inappropriate installation may result in water leakage, electric shock or fire.

• Turn off the main power supply switch or breaker before attempting any electrical work.

Make sure all power switches are off. Failure to do so may cause electric shock.

• Connect the connecting cable correctly.

If the connecting cable is connected by wrong way, electric parts may be damaged.

• When moving the air-conditioner for installing it in another place again, be very careful not

to get the specified refrigerant with any other gaseous body into the refrigeration cycle.

If air or any other gas is mixed in the refrigerant, the gas pressure in the refrigeration cycle becomes abnormally high and it resultingly causes burst of the pipe and injuries on persons.

PRECAUTIONS FOR SAFETY

• Never modify this unit by removing any of the safety guards or by by-passing any of the

safety interlock switches.

• Exposure of unit to water or other moisture before installation may cause a short circuit.

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.

• To avoid personal injury, be careful when handling parts with sharp edges.

• Perform installation work properly according to the Installation Manual.

Inappropriate installation may result in water leakage, electric shock or fire.

• When installing the air conditioner in a small room, provide appropriate measures to ensure

that the concentration of refrigerant in the room does not exceed the critical level should leakage occur.

It is not dangerous refrigerant; it has not toxicity or combustibility. However, a concentration above 0.3kg/m³ as criterion still causes suffocation. The volume of refrigerant charged to the Multi System air conditioner is more than the volume charged to a conventional individual system.

• Install the air conditioner securely in a location where the weight of the unit can be

sustained adequately.

• Perform the specified installation work to guard against an earthquake.

If the air conditioner is not installed appropriately, accidents may occur due to the falling unit.

• If refrigerant gas has leaked during the installation work, ventilate the room immediately.

If the leaked refrigerant gas comes in contact with fire, noxious gas may generate.

• After the installation work, confirm that refrigerant gas does not leak.

If refrigerant gas leaks into the room and flows near a fire source, such as a cooking range, noxious gas may generate.

• The electrical work must be performed by a qualified electrician in accordance with the

Installation Manual. Make sure the air conditioner uses an exclusive circuit.

An insufficient circuit capacity or inappropriate installation may cause fire.

• When wiring, use the specified cables and connect the terminals securely to prevent

external forces applied to the cable from affecting the terminals.

• Be sure to provide grounding.

Do not connect ground wires to gas pipes, water pipes, lightning rods or ground wires for telephone cables.

• Conform to the regulations of the local electric company when wiring the power supply.

Inappropriate grounding may cause electric shock.

• Do not install the air conditioner in a location subject to a risk of exposure to combustible

gas.

Otherwise, the combustible gas leaks, stays around the unit and a fire may occur.

SELECTION OF INSTALLATION PLACE

WARNING

• Install the air conditioner where there is sufficient strength to withstand the weight of the unit.

If the strength is not sufficient, the unit may fall down resulting in injury.

• Install the air conditioner at a position keeping the height by 2.5m or more from the floor.

If you insert your hands or others directly into the unit during running of the air conditioner, it is dangerous because you may contact with revolving fan or active electricity.

CAUTION

• Do not install the air conditioner in a location subject to a risk of exposure to combustible gas.

Otherwise, the combustible gas leaks, stays around the unit and a fire may occur.

Upon approval of the customer, install the air conditioner in a place that satisfies the following conditions.

• Place where the unit can be installed horizontally.

• Place where a sufficient servicing space can be ensured for safe maintenance and check.

• Place where drained water will not cause any problem.

Avoid installing in the following places.

• Place exposed to air with high salt content (seaside area), or place exposed to large quantities of sulfide gas

(hot spring). (Should the unit be used in these places, special protective measures are needed.)

• Place exposed to oil, vapor, oil smoke or corrosive gas.

• Place where organic solvent is used nearby.

• Place close to a machine generating high frequency.

• Place where the discharged air blows directly into the window of the neighboring house. (For outdoor unit)

• Place where noise of the outdoor unit is easy to transmit.

(When installing the air conditioner on the boundary with the neighbor, pay due attention to the level of noise.)

• Place with poor ventilation. (Before air ducting work, check whether value of air volume, static pressure and

duct resistance are correct.)

Installation space

Secure the space required to installation and servicing.

100 or more

240 or more

300 or more

for service space

Selection of installation place

In case of continues the operation of the indoor unit under high-humidity conditions as described below, dew may condense and water may drop.

Especially, high-humidity atmosphere (dew point temperature : 23°C or more) may generate inside of the ceiling.

1. Unit is installed inside of the ceiling with slated roof.

2. Unit is installed at a location using inside of the ceiling as fresh air take-in path.

3. Kitchen

If installing a unit at such place, adhere insulating material (glass wool, etc.) additionally over all the positions of the indoor unit which come to contact with high-humidity atmosphere.

Advice

Set a check port at right side of the unit (size: 450 x 450mm) for piping, maintenance, and servicing.

INSTALLATION OF INDOOR UNIT

WARNING

Install the air conditioner certainly at a place to sufficiently withstand the weight. If the strength is insufficient, the unit may fall down resulting in human injury. Perform a specified installation work to guard against an earthquake. An incomplete installation can cause accidents by the units falling and dropping.

Return air methed is choiced from rear or under direction as shown in figure.

Return air from rear side Return air from below side

• If a system to suck in air directly from the bottom of the unit is adopted, the noise level increases. It is recommended to mount the return duct so that air is not directly sucked in.

Installation procedure

1. Lay drain pipes, refrigerant pipes, and connecting cables under wall or ceiling concurrently with supply/drain water work and piping work.

2. Install the mounting frames of supply/return air panels

3. Positioning of refrigerant and drain pipes

4. Install the indoor unit

• Preparation for installation

• Setting/fixing of indoor unit

6. Mount the switch panel and set switches

7. Install supply/return air panels

8. Mount thermal insulation

9. Mount check port

5. Connect cables and pipes

NOTE :

For installation of the outdoor unit, refer to the Installation manual (Packed in the outdoor unit).

External view

REQUIREMENT

The hanging bolt pitch on longitudinal direction is not divided at center with the ceiling opening size. Therefore, check the relational position in the following figure.

650 (Inside flange)

228

(Inside flange)

730 (Hanging bolt pich)

29.7

440

216.2 (Inside flange)

1. Hanging down of indoor unit

Refer to installation figures of hanging material and hanging bolt.

• Adjustment of hanging bolt length and nut position

Adjust hanging bolt length and nut position as shown in the figure below before hanging down the indoor unit.

750

640 (Inside flange)

350 (Hanging bolt pich)

19.7

15 to 20

20 to 30

Hanging bolt

Nut with flange (or washer and nut)

211118

Square washer

Hexagonal nut

NOTE :

Be sure to set the indoor unit horizontally so as not to cause malfunction of the float switch or leakage of water.

230

156.5

Considering pipe/wire connecting work inside the ceiling after the indoor unit has been hanged, select an installation place and determine piping direction.

• If the ceiling has been already set, lead refrigerant pipe, drain pipe, connecting wire, switch panel cord, etc. up to the place where pipe and wire are connected before hanging the main unit.

INSTALLATION OF INDOOR UNIT

Concealed duct type

Air filter

Ledge ceiling concealed duct type

Returning

Indoor unit

C channel

Return air panel

Supplying

200mm (diam.) round duct

Indoor unit

Supplying

Supply chamber

Supply grille

Supplying

Supply grille

Supplying

Air filter

Return air panel

Returning

NOTES:

• Opening area of the return grille should be larger than one of the return port of the indoor unit.

Restriction to installation

1. Installation space

• As shown in the figure, keep space around the indoor unit.

200mm (diam.) round duct

100mm or more

300mm or more

Inner ceiling 100mm or more

300mm or more

AIR DUCTING WORK

Static pressure characteristics of each model

Fig. 1 RAS-M10YDCV-E, RAS-M10YDV-E

Air volume limit

(Minimum) 380m³/hr.

External static pressure (Pa)

Low tap

200 300 400 500 600 700 800 900

Upper limit of external static pressure

Lower limit of external static pressure

Air volume limit (Minimum) 720m³/hr.

Air volume (m³/hr.)

High tap

Fig. 3 RAS-M16YDCV-E, RAS-M16YDV-E

External static pressure (mmAq)

External static pressure (Pa)

200 300 400 500 600 700 800 900

Air volume limit (Minimum) 430m³/hr.

Low tap

Upper limit of external static pressure

Lower limit of external static pressure

Air volume limit (Minimum) 780m³/hr.

Air volume (m³/hr.)

High tap

External static pressure (mmAq)

Fig. 2 RAS-M13YDCV-E, RAS-M13YDV-E

Air volume limit

(Minimum) 410m³/hr.

External static pressure (Pa)

Low tap

200 300 400 500 600 700 800 900

Upper limit of external static pressure

Lower limit of external static pressure

Air volume limit (Minimum) 780m³/hr.

Air volume (m³/hr.)

High tap

External static pressure (mmAq)

Model RAS-

Max. capacity point

Max. air volume

Min. capacity point

Min. air volume

Air volume

Static pressure

Air volume

Static pressure

Air volume

Static pressure

Air volume

Static pressure

M10YDCV-E M13YDCV-E M16YDCV-E

M10YDV-E M13YDV-E M16YDV-E

650 700 700

54.9 63.7 63.7

(5.6) (6.5) (6.5)

720 780 780

35.3 41.2 41.2

(3.6) (4.2) (4.2)

400 430 450

10.8 12.7 13.7

(1.1) (1.3) (1.4)

380 410 430

18.6 21.6 23.5

(1.9) (2.2) (2.4)

Unit for static pressure : Pa (mmAq)

Unit for air volume : m³/hr.

25mm or more

Ø150mm or more

Duct board

Weight of thermal insulator (glass wool) is 64 kg/m³ or equivalent.

Weight of thermal insulator (glass wool) is 24 kg/m³ or equivalent.

AIR DUCTING WORK

Installation Reference

The air supply ducting work is classified into two ways, one is branched by the square ducts, and the other is branched by the round ducts. (Be sure to divide the air supply duct into three or more branches.)

In case of using the square duct, apply the thermal insulator of thickness by 25mm or more to the duct board. For the thermal insulator, use high-density glass wool of weight by 64kg/m3.

In case of using the round duct, use the thermal insulator of thickness by 25mm or more and inner diameter by 150mm or more to the duct board. (If the inner diameter is not enough, resistance generates, as the result, air does not flow smoothly and loss of the static pressure increases.) For the thermal insulator, use high-density glass wool of weight by 24kg/m3 or equivalent.

Connecting method of the duct

1. Supply air side

Using 6 screws, mount the flange to the supply air port of the indoor unit. (Fig. 1)



Make the square duct according to inner dimension of the flange. A x B .



Use a glass wool board with inside/outside finishing by 25mm-thickness and 64kg/m³-density. Connect the flange and each type of duct. (Fig. 2)



Aluminum tape (50mm-width)

Thermal insulator (50mm (w), 6mm (t))

Seal Thermal insulator :

( )

25mm (w), 6mm (t)

25mm

End

Square duct board (25mm)

Indoor unit

Fig. 2Fig. 1

Incomplete thermal insulation of the supply air flange and sealing may occur dewing resulted in falling of water drop.

CAUTION

Fit to the arrow w direction b

y pushing.

Fit to the arrow w direction b

y pushing.

Thermal insulator with sticking material (50mm-width, 6mm (t))

Aluminum tape (Seal : 50mm-width)

Fit to the arro

Fit to the arrow

direction b

direction by pushing.

Square duct board 25mm-thickness,

( )

64kg/m³ or equivalent

y pushing.

Attach by pushing to the arrow direction. (Outside corner direction)

2. Return air side

Caution for Safety

Fig. 2 (a)

Thermal insulator at indoor unit side Stuck already at

( )

shipment from the factory

Screws (6 pieces)

Indoor unit side

Flange (procured locally)

Seal/thermal insulator with sticking material (25mm-width, 6mm (t))

Thermal insulator with sticking material (50mm-width, 6mm-thickness)

Aluminum tape (Seal : 50mm-width)

Fit to the arro

Fit to the arrow

direction b

direction by pushing.

Thermal insulator 25mm-thickness,

( )

24kg/m³ or equivalent

y pushing.

Round duct

Fit the seal/thermal insulator (25mm-width, 6mm-thickness) by pushing to the arrow direction so that no clearance can be found between the flange and the round duct.

Flange

Fig. 2 (b)

Thermal insulator at indoor unit side Stuck already at

( )

shipment from the factory

Screws (6 pieces)

Seal/thermal insulator with sticking material (25mm-width, 6mm (t))

When you do not connect the duct to the return air side (using steel and others), apply a protective measures so that your hands or fingers do not directly touch with the motor or other electric parts.

2-1. Return air from rear side

Follow the procedure same as that for the supply air side.



Flange mounting → Square duct making → Connecting work

2-2. Return air from lower side

Remove the cover for return air at the lower side of the indoor unit, and attach the cover to the opening port at



the rear side of the indoor unit.

Cover for return air

Mount the flange to the place from where the cover for return air was removed.



Mount the square duct.



Arrange the flange and the square duct.



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