Toshiba RAS-3M26GAV-E, RAS-4M23SACV-E, RAS-4M23SAV-E, RAS-4M27GAV-E, RAS-4M27GACV-E INSTALLATION MANUAL

OutdoorInstallation.book Page 0 Tuesday, February 13, 2007 5:58 PM

OUTDOOR UNIT INSTALLATION MANUAL

MANUEL D’INSTALLATION DE L’UNITE EXTERIEURE

EINBAUANLEITUNG FÜR DAS AUSSENGERÄT MANUALE DI INSTALLAZIONE DELL’UNITÀ

ESTERNA

MANUAL DE INSTALACIÓN DE LA UNIDAD EXTERIOR

ǼīȋǼǿȇǿǻǿȅ ǼīȀǹȉǹȈȉǹȈǾȈ ǼȄȍȉǼȇǿȀǾȈ ȂȅȃǹǻǹȈ

MANUAL DE INSTALAÇÃO DA UNIDADE EXTERIOR

INSTALLATIONSANVISNING FÖR

UTOMHUSENHETEN

ИНСТРУКЦИЯ ПО УСТАНОВКE НАРУЖНОГО БЛОКА

AIR CONDITIONER (MULTI-SPLIT TYPE)

	For general public use
CLIMATISEUR (TYPE BLOCS MULTIPLES)	Pour utilisation grand public
KLIMAGERÄT (MULTISYSTEM-SPLITGERÄT)	Für allgemeine Verwendung
CONDIZIONATORE D’ARIA (TIPO MULTI-SPLIT)	Per l’uso in generale
ACONDICIONADOR DE AIRE (TIPO MÚLTI-SEPARADO)	Para el uso público general
ȀȁǿȂǹȉǿȈȉǿȀǾ Ȃȅȃǹǻǹ (ȆȅȁȁǹȆȁȅȊ ȉȊȆȅȊ)	īȚĮ ȖİȞȚțȒ įȘμȩıȚĮ ȤȡȒıȘ
AR CONDICIONADO (TIPO MULTI-SPLIT)	Para utilização geral
LUFTKONDITIONERING (FLERSPLITTYP)	För allmän användning
КОНДИЦИОНЕР (МУЛЬТИ-РАЗДЕЛИТЕЛЬНОГО	Для общего бытового использования
ТИПА)
	Outdoor Unit
	Unité extérieure
	Außengerät
	Unità esterna
	Unidad exterior
	ǼȟȦIJİȡȚțȒ μȠȞȐįĮ
	Unidade exterior
	Utomhusenhet
	Наружный блок
	RAS-4M23SAV-E
	RAS-4M23SACV-E
	RAS-3M26GAV-E
	RAS-4M27GAV-E
	RAS-4M27GACV-E

Please read this installation manual carefully before installing the air conditioner.

Veuillez lire attentivement ce manuel avant d’installer le climatiseur.

Lesen Sie diese Einbauanleitung sorgfältig durch, bevor Sie das Klimagerät installieren.

Prima di installare il condizionatore d’aria, si consiglia di leggere con attenzione il presente manuale di installazione. Lea este manual de instalación atentamente antes de instalar el acondicionador de aire.

ȆĮȡĮțĮȜȠȪμİ įȚĮȕȐıIJİ ĮȣIJȑȢ IJȚȢ ȠįȘȖȓİȢ İȖțĮIJȐıIJĮıȘȢ ʌȡȠıİțIJȚțȐ ʌȡȚȞ İȖțĮIJĮıIJȒıİIJİ IJȘȞ țȜȚμĮIJȚıIJȚțȒ μȠȞȐįĮ.

Leia atentamente este manual de instalação antes de instalar o ar condicionado. Läs den här installationsanvisningen noga innan du installerar luftkonditioneringen.

Перед установкой кондиционера прочитайте, пожалуйста, внимательно эту инструкцию по установке.

ENGLISH

DEUTSCH FRANÇAIS

ITALIANO

РУССКИЙ ЯЗЫК SVENSKA PORTUGUÊS ǼȁȁǾȃǿȀǹ ESPAÑOL

OutdoorInstallation.book Page i Tuesday, February 13, 2007 5:58 PM

CONTENTS/SOMMAIRE/INHALT/INDICE/ÍNDICE/ȆǼȇǿǼȋȅȂǼȃǹ/ ÍNDICE/INNEHÅLL/СОДЕРЖАНИЕ

ENGLISH
1	SAFETY PRECAUTIONS ..............................................	1
2	OPTIONAL PARTS, ACCESORIES AND TOOLS ........	3
3	WHICH MODELS CAN BE COMBINED ........................	5
4	INSTALLATION OF OUTDOOR UNIT ...........................	6
5	GROUNDING ...............................................................	12
6	CHECK AND TEST OPERATION ...............................	12
7	USEFUL FUNCTIONS .................................................	14
FRANÇAIS
1	MESURES DE SECURITE ............................................	1
2	PIECES EN OPTION, ACCESSOIRES ET OUTILS .....	3
3	QUELS MODELES PEUVENT ETRE COMBINES .......	5
4	SYSTEME DE PRIORITES DE MODE DE
	FONCTIONNEMENT .....................................................	6
5	MISE A LA TERRE ......................................................	12
6	CONTROLE ET OPERATION D’ESSAI ......................	12
7	FONCTIONS UTILES ..................................................	14
DEUTSCH
1	SICHERHEITSVORKEHRUNGEN ................................	1
2	SONDERTEILE, SONDERZUBEHÖR UND
	WERKZEUGE ................................................................	3
3	WELCHE MODELLE KÖNNEN KOMBINIERT
	WERDEN .......................................................................	5
4	INSTALLATION DES AUSSENGERÄTS ......................	6
5	ERDUNG .....................................................................	12
6	PRÜFUNG UND TESTBETRIEB .................................	12
7	NÜTZLICHE FUNKTIONEN ........................................	14

ǼȁȁǾȃǿȀǾ
1	ȆȇȅĭȊȁǹȄǼǿȈ ǹȈĭǹȁǼǿǹȈ .......................................	1
2	ȆȇȅǹǿȇǼȉǿȀǹ ǹȃȉǹȁȁǹȀȉǿȀǹ, ǼȄǹȇȉǾȂǹȉǹ Ȁǹǿ
	ǼȇīǹȁǼǿǹ .....................................................................	3
3	Ȇȅǿǹ ȂȅȃȉǼȁǹ ȂȆȅȇȅȊȃ ȃǹ ȈȊȃǻȊǹȈȉȅȊȃ ......	5
4	ǼīȀǹȉǹȈȉǹȈǾ ǼȄȍȉǼȇǿȀǾȈ ȂȅȃǹǻǹȈ ...................	6
5	īǼǿȍȈǾ ........................................................................	12
6	ǼȁǼīȋȅȈ Ȁǹǿ ǻȅȀǿȂǾ ȁǼǿȉȅȊȇīǿǹȈ ......................	12
7	ȋȇǾȈǿȂǼȈ ȁǼǿȉȅȊȇīǿǼȈ ..........................................	14
PORTUGUÊS
1	PRECAUÇÕES DE SEGURANÇA ................................	1
2	PEÇAS OPCIONAIS, ACESSÓRIOS E
	FERRAMENTAS ...........................................................	3
3	MODELOS QUE PODEM SER COMBINADOS ............	5
4	INSTALAÇÃO DA UNIDADE EXTERIOR .....................	6
5	LIGAÇÃO À TERRÀ ....................................................	12
6	VERIFICAÇÃO E TESTE DA OPERAÇÃO .................	12
7	FUNÇÕES ÚTEIS .......................................................	14
SVENSKA
1	SÄKERHETSFÖRESKRIFTER .....................................	1
2	TILLVALSUTRUSTNING, TILLBEHÖR OCH
	VERKTYG .....................................................................	3
3	VILKA MODELLER SOM GÅR ATT KOMBINERA .......	5
4	INSTALLATION AV UTOMHUSENHETEN ...................	6
5	JORDNING ..................................................................	12
6	KONTROLL OCH TESTKÖRNING .............................	12
7	PRAKTISKA FUNKTIONER ........................................	14

ITALIANO
1	PRECAUZIONI PER LA SICUREZZA ...........................	1
2	COMPONENTI OPZIONALI, ACCESSORI E
	STRUMENTI ..................................................................	3
3	QUALI MODELLI É POSSIBILE COMBINARE .............	5
4	INSTALLAZIONE DELL’UNIT À ESTERNA ..................	6
5	MESSA A TERRA ........................................................	12
6	CONTROLLI E FUNZIONAMENTO DI PROVA ..........	12
7	FUNZIONI UTILI ..........................................................	14
ESPAÑOL
1	PRECAUCIONES SOBRE SEGURIDAD ......................	1
2	PARTES OPCIONALES, ACCESORIOS Y
	HERRAMIENTAS ..........................................................	3
3	QUÉ MODELOS PUEDEN COMBINARSE ...................	5
4	INSTALLATION DE LA UNIDAD EXTERIOR ................	6
5	CONEXIÓN A TIERRA ................................................	12
6	COMPROBACIÓN Y OPERACIÓN DE PRUEBA .......	12
7	FUNCIÓN PRÁCTICA .................................................	14

РУССКИЙ ЯЗЫК
1	МЕРЫ ПРЕДОСТОРОЖНОСТИ .................................	1
2	ДОПОЛНИТЕЛЬНЫЕ ЧАСТИ,
	ПРИНАДЛЕЖНОСТИ И ИНСТРУМЕНТЫ ..................	3
3	КОМБИНАЦИЯ КАКИХ МОДЕЛЕЙ ВОЗМОЖНА ......	5
4	УСТАНОВКА НАРУЖНОГО БЛОКА ...........................	6
5	ЗАЗЕМЛЕНИЕ ............................................................	12
6	ПРОВЕРКА И ТЕСТОВАЯ ЭКСПЛУАТАЦИЯ ..........	12
7	УДОБНАЯ ФУНКЦИЯ ................................................	14

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IMPORTANT NOTICE

• For details on how to install the indoor units, refer to the installation manual accompanying the indoor units.

1 SAFETY PRECAUTIONS

For general public use

•RAS-4M23SAV-E, RAS-4M23SACV-E

Power supply cord of outdoor unit shall be 1.5 mm2 (H07RN–F or 60245IEC66) polychloroprene sheathed flexible cord.

•RAS-3M26GAV-E, RAS-4M27GAV-E, RAS-4M27GACV-E

Power supply cord of outdoor unit shall be 2.5 mm2 (H07RN–F or 60245IEC66) polychloroprene sheathed flexible cord.

CAUTION

New Refrigerant Air Conditioner Installation

• THIS AIR CONDITIONER ADOPTS THE NEW HFC REFRIGERANT (R410A) WHICH DOES NOT DESTROY OZONE LAYER.

R410A refrigerant is apt to be affected by impurities such as water, oxidizing membrane, and oils because the working pressure of R410A refrigerant is approx. 1.6 times as that of refrigerant R22. Accompanied with the adoption of the new refrigerant, the refrigeration machine oil has also been changed. Therefore, during installation work, be sure that water, dust, former refrigerant, or refrigeration machine oil does not enter the new type refrigerant R410A air conditioner circuit.

To prevent mixing of refrigerant or refrigerating machine oil, the sizes of connecting sections of charging port on main unit and installation tools are different from those of the conventional refrigerant units. Accordingly, special tools are required for the new refrigerant (R410A) units as shown on page 4. For connecting pipes, use new and clean piping materials with high pressure fittings made for R410A only, so that water and/or dust does not enter. Moreover, do not use the existing piping because there are some problems with pressure fittings and possible impurities in existing piping.

ENGLISH

CAUTION

TO DISCONNECT THE APPLIANCE FROM THE MAIN POWER SUPPLY

Disconnection from the supply mains:

The means for disconnection must be incorporated in the fixed wiring in accordance with the wiring rules.

1

EN

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DANGER

•FOR USE BY QUALIFIED PERSONS ONLY.

•TURN OFF MAIN POWER SUPPLY BEFORE ATTEMPTING ANY ELECTRICAL WORK. MAKE SURE ALL POWER SWITCHES ARE OFF. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

•CORRECTLY CONNECT THE CONNECTING CABLE. IF THE CONNECTING CABLE IS INCORRECTLY CONNECTED, ELECTRIC PARTS MAY BE DAMAGED.

•CHECK THAT THE EARTH WIRE IS NOT BROKEN OR DISCONNECTED BEFORE INSTALLATION. FAILURE TO DO SO MAY CAUSE ELECTRIC SHOCK.

•DO NOT INSTALL THE UNIT IN A PLACE WHERE INFLAMMABLE GAS CAN LEAK. A FIRE CAN RESULT IF INFLAMMABLE GAS ACCUMULATES AROUND THE UNIT.

•TO PREVENT THE INDOOR UNIT FROM OVERHEATING AND CAUSING A FIRE HAZARD, PLACE THE UNIT WELL AWAY (MORE THAN 2 M) FROM HEAT SOURCES SUCH AS RADIATORS, HEAT REGISTORS, FURNACE, STOVES, ETC.

•WHEN MOVING THE AIR-CONDITIONER FOR INSTALLATION TO ANOTHER PLACE, BE VERY CAREFUL NOT TO ALLOW THE SPECIFIED REFRIGERANT (R410A) TO BECOME MIXED WITH ANY OTHER GASEOUS BODY INTO THE REFRIGERATION CIRCUIT. IF AIR OR ANY OTHER GAS MIXES WITH THE REFRIGERANT, THE GAS PRESSURE IN THE REFRIGERATION CIRCUIT WILL BECOME ABNORMALLY HIGH AND IT MAY RESULT IN THE PIPE BURSTING OR PERSONNEL INJURIES.

•IN THE EVENT THAT THE REFRIGERANT GAS LEAKS OUT OF THE PIPE DURING THE INSTALLATION WORK, IMMEDIATELY LET FRESH AIR INTO THE ROOM. IF THE REFRIGERANT GAS IS HEATED, POISONOUS GAS MAY RESULT.

•WHEN INSTALLING THE AIR CONDITIONER UNIT, MAKE SURE THAT THE REFRIGERANT PIPE IS CONNECTED SECURELY BEFORE THE COMPRESSOR IS OPERATED. IF THE COMPRESSOR IS OPERATED WITH THE REFRIGERANT PIPE UNCONNECTED, WHICH MEANS THAT THE SERVICE VALVE WILL BE LEFT OPEN, AIR, ETC. WILL BE SUCKED IN, CAUSING THE PRESSURE INSIDE THE REFRIGERATION CYCLE TO RISE TO AN ABNORMALLY HIGH LEVEL, AND POSSIBLY RESULTING IN RUPTURE, INJURY, ETC.

•WHEN CARRYING OUT THE PUMP-DOWN WORK, SHUT DOWN THE COMPRESSOR BEFORE DISCONNECTING THE REFRIGERANT PIPE. DISCONNECTING THE REFRIGERANT PIPE WITH THE SERVICE VALVE LEFT OPEN AND WITH THE COMPRESSOR STILL OPERATING WILL CAUSE AIR, ETC. TO BE SUCKED IN, RAISING THE PRESSURE INSIDE THE REFRIGERATION CYCLE TO AN ABNORMALLY HIGH LEVEL, AND POSSIBLY RESULTING IN RUPTURING, INJURY, ETC.

WARNING

•Never modify this unit by removing any of the safety guards.

•The installation of the air conditioner must be positioned in a location that can sufficiently support its weight. Failure to do so may result in unit damage and human injury.

•Appliance shall be installed in accordance with national wiring regulations.

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

CAUTION

•Exposure of unit to water or other moisture before installation may result in an electrical short. Do not store in a wet basement or expose to rain or water.

•After unpacking the unit, examine it carefully for any 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 or discharged air might disturb neighbors.

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

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

•Wear work gloves when carrying out the installation work or repairs. Contact with parts, etc. may cause injury if the work or repairs are conducted without wearing gloves.

EN

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2 OPTIONAL PARTS, ACCESORIES AND TOOLS

Optional Installation Parts

	Part name		Specifications		Q’ty
		Indoor unit name	Liquid side	Gas side
	Refrigerant piping*1	(Abbreviation)	(Outer diameter)	(Outer diameter)	1 ea.
		10, 13	6.35 mm	9.52 mm
		16	6.35 mm	12.7 mm
	Putty, PVC tapes				1 ea.

*1 Refrigerant piping covered with insulating material (polyethylene form, 6 mm thick).

*In case the piping is installed above the ceiling, it shall be covered with thicker insulating material (polyethylene form, 10 mm thick).

Attachment bolt arrangement of outdoor unit

•	Secure the outdoor unit with the attachment bolts and nuts if the unit	259	Suction side
	is likely to be exposed to a strong wind.	50		50
				280
•	Use I8 mm or I10 mm anchor bolts and nuts.
•	If it is necessary to drain the defrost water, attach drain nipple to the
	base plate of the outdoor unit before installing it.	365	42.5	40
			Diffuser
		Elongated drain	600	Drain hole
		hole
		(d)		(c)

Accessory and Installation Parts

Part No.

Part name (Q’ty)

Part No.

Part name (Q’ty)

a		c
		Drain nipple x 1
	Outdoor unit installation manual x 1	(Heat pump models only)
b		d
		Water-proof rubber cap x 1
	Specifications x 1	(Heat pump models only)
Others	Name

Important information and warning

B/W strips (Energy efficiency labels)

ENGLISH

3

EN

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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 control valve (3 way 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)

New tools for R410A

New tools for R410A

Applicable to R22 model

Changes

Gauge manifold

As the working pressure is high, it is impossible to measure

the working pressure using conventional gauges. In order to

prevent any other refrigerant from being charged, the port

diameters have been changed.

Charge hose

In order to increase pressure resisting strength, hose

materials and port sizes have been changed (to 1/2 UNF 20

threads per inch).

When purchasing a charge hose, be sure to confirm the

port size.

Electronic balance for refrigerant

As working pressure is high and gasification speed is fast, it

charging

is difficult to read the indicated value by means of charging

cylinder, as air bubbles occur.

Torque wrench

The size of opposing flare nuts have been increased.

(nominal dia. 1/2, 5/8)

Incidentally, a common wrench is used for nominal

diameters 1/4 and 3/8.

Flare tool (clutch type)

By increasing the clamp bar’s receiving hole size, strength

of spring in the tool has been improved.

Gauge for projection adjustment

—

Used when flare is made by using conventional flare tool.

Vacuum pump adapter

Connected to conventional vacuum pump. It is necessary to

use an adapter to prevent vacuum pump oil from flowing

back into the charge hose. The charge hose connecting

part has two ports — one is for conventional refrigerant (7/

16 UNF 20 threads per inch) and the other is for R410A. If

the vacuum pump oil (mineral) mixes with R410A a sludge

may occur and damage the equipment.

Gas leakage detector

Exclusive for HFC refrigerant.

•Incidentally, the “refrigerant cylinder” comes with the refrigerant designation (R410A) and protector coating in the U.S’s ARI specified rose color (ARI color code: PMS 507).

•Also, the “charge port and packing for refrigerant cylinder” requires 1/2 UNF 20 threads per inch corresponding to the charge hose’s port size.

EN

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3 WHICH MODELS CAN BE COMBINED

Table of models that can be connected

: Can be connected. : Cannot be connected.

								4-way Air
				High Wall Type			Slim Duct	Discharge
							Type	Cassette
								Type
			With air purifying unit			Without air purifying unit
	Indoor unit		DAISEIKAI 2	DAISEIKAI 3
	specification	16-class	RAS-	RAS-	RAS-	RAS-	RAS-	RAS-
			B16GKVP-E B16SKVP-E M16GKV-E			M16SKV-E	M16GDV-E	M16SMUV-E
	Heat	13-class	RAS-	RAS-	RAS-	RAS-	RAS-	RAS-
	pump		B13GKVP-E	B13SKVP-E M13GKV-E		M13SKV-E	M13GDV-E	M13SMUV-E
		10-class	RAS-	RAS-	RAS-	RAS-	RAS-	RAS-
			B10GKVP-E B10SKVP-E M10GKV-E			M10SKV-E	M10GDV-E	M10SMUV-E
		RAS-
	Outdoor unit	4M23SAV-E
		RAS-
	for
		3M26GAV-E
	combination
		RAS-
		4M27GAV-E

								4-way Air
				High Wall Type			Slim Duct	Discharge
							Type	Cassette
								Type
			With air purifying unit			Without air purifying unit
	Indoor unit		DAISEIKAI 2	DAISEIKAI 3
	specification	16-class	RAS-	RAS-	RAS-	RAS-	RAS-	RAS-
	Cooling-		M16GKCVP-E	M16SKCVP-E M16GKCV-E		M16SKCV-E M16GDCV-E		M16SMUCV-E
	only	13-class	RAS-	RAS-	RAS-	RAS-	RAS-	RAS-
			M13GKCVP-E	M13SKCVP-E M13GKCV-E		M13SKCV-E M13GDCV-E		M13SMUCV-E
		10-class	RAS-	RAS-	RAS-	RAS-	RAS-	RAS-
			M10GKCVP-E	M10SKCVP-E	M10GKCV-E	M10SKCV-E	M10GDCV-E	M10SMUCV-E
	Outdoor unit	RAS-
		4M23SACV-E
	for
		RAS-
	combination
		4M27GACV-E
	NOTES

A 1-room connection is not an option for the indoor units (you cannot connect only one indoor unit). A 2-room or more connection must always be used for the indoor units (you must connect at least two indoor units).

ENGLISH

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4 INSTALLATION OF OUTDOOR UNIT

Installation Location

•A place which provides enough space around the outdoor unit as shown in the diagram.

•A place which can bear the weight of the outdoor unit and does not allow an increase in noise level and vibration.

•A place where the operation noise and discharged air do not disturb neighbors.

•A place which is not exposed to a strong wind.

•A place free of combustible gases.

•A place which does not block a passageway.

•When the outdoor unit is to be installed in an elevated position, be sure to secure its feet.

•Piping connections to the outdoor unit should be arranged in the sequence A, then B, C, D, starting from the bottom. (For each piping connection, the gas pipe is on the bottom and the liquid pipe on top.)

•When multiple indoor units are to be connected to the outdoor unit, make sure the ends of the pipes and wires from each indoor unit are connected to the outdoor unit correctly. (Problems caused by indoor units being connected to the outdoor unit incorrectly are very common in multiple-unit installations.)

•The length and height differences of the connecting pipes between the indoor and outdoor units must be within the ranges indicated below.

Allowable piping length and height difference

NOTE: For installation, at least 3 sides should be kept away from obstacles (walls).

600 mm or more

100 mm or more from wall

100 mm or more from wall

600 mm or more from wall

600 mm or more

As shown in the figure, hang power cord and connecting cable downward.

	Item		Piping length
Outdoor unit	Minimum for 1 unit	Maximum for 1 unit		Maximum for	Maximum for	Height difference
				total of 3 units	total of 4 units
RAS-4M23SAV-E				—	60 m*1
RAS-4M23SACV-E
RAS-3M26GAV-E	2 m	25 m		50 m	—	15 m
RAS-4M27GAV-E				—	70 m*2
RAS-4M27GACV-E

*The outdoor unit should not be installed with one indoor unit only. Be sure the (outdoor) unit is installed with at least two indoor units.

*1 If the total piping length for the 4M23 is 40 m or more, add an extra 20 g/m of refrigerant.

*2 If a 4-way air discharge cassette type is connected to the 4M27, the maximum piping length is 50 m.

•If the outdoor unit is to be mounted on a wall, make sure the platform supporting it is sturdy enough.

The platform should be designed and manufactured to maintain its strength over a long period of time, and sufficient consideration should be given to ensuring that the outdoor unit will not fall.

•When the outdoor unit is to be mounted high on a wall, take particular care to ensure that parts do not fall, and that the installer is protected.

•When doing installation work at ground level, it is usual to make wiring and pipe connections to the indoor units, first, and then to make connections to the outdoor unit.

However, if outdoor work is difficult it is possible, instead, to make changes to the procedure.

For example, by making adjustments to the wiring and piping lengths on the inside (rather than the outside).

•A place where the drain water does not cause any problems.

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CAUTION

1.Install the outdoor unit in a location where there are no obstructions near its air intake or air outlet.

2.When the outdoor unit is installed in a place that is always exposed to strong winds like on the coast or on a high story of a building, secure the normal fan operation using a duct or a wind shield.

3.Especially in windy areas, install the unit to prevent the admission of wind.

4.Installation in the following places may result in trouble. Do not install the unit in such places.

•A place full of machine oil.

•A saline-place such as the coast.

•A place full of sulfide gas.

• A place where high-frequency waves are likely to be generated, such	Strong
as from audio equipment, welders, and medical equipment.	wind

Draining the water (heat pump models only)

A hole is provided on the base plate of the outdoor unit to ensure that the defrost water produced during heating operations is drained

off efficiently.

When the outdoor unit is to be installed in an area with a moderate climate

•Allow the water in the outdoor unit to drip onto the ground.

•If a centralized drain is required, which is the case when the unit is installed on a balcony or against a wall, follow the steps below.

•When a drain pipe is to be used to drain the water

•Use a drain pan to catch the defrost water, and drain the pan.

•Use a pipe made of hard PVC with a nominal diameter of 25A (25 mm inside diameter) for the drain pipe.

Direction of air

blown out

Drain port

Outline of	Outline of outdoor
drain pan	unit

Tips when using a drain pan and elbow
•	When using a drain pan, check its dimensions before deciding where the	Outdoor unit		Drain pan
	outdoor unit is to be installed.
•	When the elbow supplied is to be used, be advised that its dimensions are as					Elbow (with a 40 mm
	shown in the figure. Ensure that the foundation does not protrude beyond					outside diameter)
	where the elbow and the part of the hose connected to it are to be installed.			30
									80
			Foundation		58

•When draining off the water using a drain nipple

When a drain hose is to be used to drain the water, install the drain nipple and water-proofing rubber cap shown in the figure, and use a commercially available drain hose (16 mm inside diameter). Tightly seal the knock-out holes and screw/ thread areas using a silicon adhesive, etc. to ensure that there is no water drippage. Under some conditions, condensation may form on the base plate and drip down. When all the defrost water is to be drained off using a centralized drain, use the drain pan.

When the outdoor unit is to be installed in an area with a snowy or cold climate

•Allow the water in the outdoor unit to drip onto the ground. (Do not use a hose to drain off the water.)

•The drain water may freeze inside the base plate at below freezing outside air temperatures so use a screwdriver or other tool to open the knock-out holes in the base plate.

The water will drain more efficiently when the knock-out holes are opened. (Use a screwdriver or other tool to pull out the knock-out pieces.)

d Water-proofing rubber cap

c Drain nipple

Knock-out holes

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EN

OutdoorInstallation.book Page 8 Tuesday, February 13, 2007 5:58 PM

Refrigerant Piping Connection

Flaring

1.Cut the pipe with a pipe cutter.

	Obliquity	Roughness	Warp

2.Insert a flare nut into the pipe, and flare the pipe.

• Projection margin in flaring: A (Unit: mm)

Rigid (Clutch type)

Outer diameter of copper pipe	R410A tool used	Conventional tool used
6.35	0 to 0.5	1.0 to 1.5
9.52	0 to 0.5	1.0 to 1.5
12.7	0 to 0.5	1.0 to 1.5

Die	Pipe

3.Flaring size: B (Unit: mm)

Imperial (Wing nut type)

Outer diameter of copper pipe		R410A
6.35		1.5 to 2.0
9.52		1.5 to 2.0
12.7		2.0 to 2.5
Outer diameter of copper pipe		B –0.4+0
	R410A		R22
6.35	9.1		9.0
9.52	13.2		13.0
12.7	16.6		16.2

•In case of flaring for R410A with the conventional flare tool, pull it out approx. 0.5 mm more than that of R22 to adjust the specified flare size. The copper pipe gauge is useful for adjusting projection margin size.

Tighten the connection

Align the centers of the connecting pipes and tighten the flare nut as much as possible with your fingers. Then tighten the nut with a wrench and torque wrench as shown in the figure.

Half union	Flare nut
Externally threaded side	Internally threaded side
Use a wrench to secure.	Use a torque wrench to tighten.

CAUTION

• Do not apply excessive force. Otherwise, the nut may break.

	(Unit: N·m)	Flare at indoor
Outer diameter of copper pipe	Tightening torque	unit side
I6.35 mm	14 to 18 (1.4 to 1.8 kgf·m)
I9.52 mm	33 to 42 (3.3 to 4.2 kgf·m)
I12.7 mm	50 to 62 (5.0 to 6.2 kgf·m)

Flare at outdoor unit side

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