Toshiba RBC-TWP30E2 User manual

INSTALLATION MANUAL
MANUEL D’INSTALLATION
INSTALLATIONS-HANDBUCH
MANUALE DI INSTALLAZIONE
MANUAL DE INSTALACIÓN
MANUAL DE INSTALAÇÃO
INSTALLATIEHANDLEIDING
ΕΓΧΕΙΡΙ∆ΙΟ ΕΓΚΑΤΑΣΤΑΣΗΣ
BRANCH PIPE KIT
KIT DE TUYAU DE BRANCHEMENT
AUSRÜSTUNG FÜR DIE ZWEIGLEITUNG
KIT DEI TUBI DI RACCORDO
JUEGO DE TUBOS DE BIFURCACIÓN
KIT DE TUBOS DE RAMAL
AFTAKPIJPSET
ΚΙΤ ΣΩΛΗΝΑ ∆ΙΑΚΛΑ∆ΩΣΗΣ
Model/Modèle/Geräte/Modello/Modelo/Modelo/Model/Moντέλο
RBC-TWP30E2
RBC-TWP50E2
Please read this Installation Manual carefully before installing the Air Conditioner.
• This Manual describes the installation method of the indoor unit.
• For installation of the outdoor unit, follow the Installation Manual attached to the outdoor unit.
Veuillez lire attentivement ce Manuel d’installation avant d’installer le climatiseur.
• Ce manuel décrit la procédure d’installation de l’unité intérieure.
• Pour installer l’unité extérieure, reportez-vous au Manuel d’installation fourni avec l’unité extérieure.
Bitte lesen Sie dieses Handbuch sorgfältig, bevor Sie mit der Installation des Klimagerätes beginnen.
• In diesem Handbuch wird die Installation der Raumeinheit beschrieben.
• Um die Außeneinheit zu installieren, folgen Sie den Anweisungen in dem Handbuch, das der Außeneinheit beiliegt.
Prima di installare il condizionatore d’aria, leggere con attenzione questo manuale d’installazione.
• Questo manuale descrive il metodo d’installazione dell’unità interna.
• Per l’installazione dell’unità esterna, fare riferimento al manuale d’installazione fornito insieme all’unità esterna.
Lea atentamente este Manual de instalación antes de proceder a la instalación del aparato de aire acondicionado.
• 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.
Leia atentamente o presente Manual de Instalação antes de instalar o sistema de ar condicionado.
• O presente manual descreve o método de instalar a unidade interior.
• Para a instalação de uma unidade exterior, siga o Manual de Instalação que acompanha a unidade exterior.
Lees deze installatiehandleiding zorgvuldig door voordat u de airconditioner gaat installeren.
• Deze handleiding beschrijft de installatiemethode van de binnenunit.
• Zie voor de installatie van de buitenunit, de installatiehandleiding bij de buitenunit.
Παρακαλώ διαβάστε προσεχτικά το Εγχειρίδιο Εγκατάστασης πριν απ' την εγκατάσταση του Κλιµατιστικού.
• Το παρ'ν Εγχειρίδιο περιγράψει τη µέθοδο εγκατάσταης της εσωτερικής µονάδας.
• Για την εγκατάσταση της εξωτερικής µονάδας, ακολουθήστε το Εγχειρίδιο Εγκατάστασης που συνοδεύει την
εξωτερική µονάδα.

This 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.
ADOPTION OF NEW REFRIGERANT
Ce climatiseur est d’un type inédit qui utilise le nouveau réfrigérant HFC (R410A) au lieu du réfrigérant
traditionnel R22, afin d’éviter la destruction de la couche d’ozone.
UTILISATION DU NOUVEAU REFRIGERANT
Dies ist ein neuartiges Klimagerät. Anstatt des herkömmlichen Kühlmittels R22 verwendet es das
neue ozonschichtschonende HFC Kühlmittel R410A.
EINFÜHRUNG EINES NEUEN KÜHLMITTELS
Questo condizionatore d’aria è di un tipo nuovo che adotta un nuovo refrigerante HFC (R410A) al
posto del refrigerante convenzionale R22, per prevenire la distruzione dello strato di ozono
dell’atmosfera terrestre.
ADOZIONE DI UN NUOVO REFRIGERANTE
Este aparato de aire acondicionado es un modelo reciente que incorpora el nuevo refrigerante HFC
(R410A) en lugar del refrigerante convencional R22 para así evitar daños en la capa de ozono.
ADOPCIÓN DE NUEVO REFRIGERANTE
Este sistema de ar condicionado é um modelo novo que adopta um novo refrigerante HFC (R410A)
em vez do refrigerante convencional R22 para evitar a destruição da camada de ozono.
ADOPÇÃO DO NOVO REFRIGERANTE
Deze airconditioner is een nieuwe type dat werkt met een nieuw koelmiddel HFC (R410A) in plaats
van met het conventionele koelmiddel R22, om de aantasting van de ozonlaag te reduceren.
TOEPASSING VAN EEN NIEUW KOELMIDDEL
Το παρν Κλιµατιστικ είναι νέος τύπος που υιοθετεί νέο ψυκτικ ΗFC (R410A) στη θέση του
συµβατικού ψυκτικού R22 προκειµένου να βοηθήσει στην προστασία του ζοντος.
ΥΙΟΘΕΤΗΣΗ ΝΕΟΥ ΨΥΚΤΙΚΟΥ

ENGLISHFRANÇAISDEUTSCHITALIANOESPAÑOLPORTUGUÊSNEDERLANDSΕΛΛΗΝΙΚΑ
CONTENTS
1PRECAUTIONS FOR SAFETY .................................. 1
2COMPONENT............................................................. 2
3REFRIGERANT PIPING ............................................. 3
4WIRING....................................................................... 5
5PIPING THERMAL INSULATION ............................ 10
6TEST RUN................................................................ 10
7DELIVERY TO CUSTOMER .................................... 10
SOMMAIRE
1PRECAUTIONS DE SECURITE............................... 11
2COMPOSANTS ........................................................ 12
3TUYAUTERIE DE FLUIDE FRIGORIGENE .............13
4CABLAGE ................................................................ 15
5ISOLATION THERMIQUE DE TUYAUTERIE.......... 20
6ESSAI DE FONCTIONNEMENT .............................. 20
7LIVRAISON AU CLIENT .......................................... 20
INHALT
1SICHERHEITSMASSNAHMEN................................ 21
2KOMPONENTEN...................................................... 22
3KÜHLMITTELROHRSYSTEM.................................. 23
4VERKABELUNG ...................................................... 25
5ANWEISUNGEN ZUR WÄRMEDÄMMUNG IM RO-
HRSYSTEM.............................................................. 30
6TESTLAUF............................................................... 30
7LIEFERUNG AN DEN KUNDEN.............................. 30
INDICE
1PRECAUZIONI PER LA SICUREZZA......................31
2COMPONENTE ........................................................ 32
3TUBAZIONE PER IL REFRIGERANTE ...................33
4CABLAGGI ............................................................... 35
5ISOLAMENTO TERMICO DELLE TUBAZIONI....... 40
6ACCENSIONE DI PROVA ....................................... 40
7CONSEGNA AL CLIENTE....................................... 40
CONTENIDO
1PRECAUCIONES PARA SEGURIDAD.................... 41
2COMPONENTE ........................................................ 42
3TUBERÍAS DE REFRIGERANTE............................. 43
4CABLEADO.............................................................. 45
5AISLAMIENTO TÉRMICO DE LAS TUBERÍAS...... 50
6PRUEBA DE FUNCIONAMIENTO........................... 50
7ENTREGA AL CLIENTE .......................................... 50
ÍNDICE
1PRECAUÇÕES DE SEGURANÇA...........................51
2COMPONENTE ........................................................ 52
3TUBAGEM DO REFRIGERANTE ............................ 53
4INSTALAÇÃO ELÉCTRICA ..................................... 55
5ISOLAMENTO TÉRMICO DOS TUBOS.................. 60
6TESTE ...................................................................... 60
7ENTREGA AO CLIENTE ......................................... 60
INHOUD
1VEILIGHEIDSVOORSCHRIFTEN ............................ 61
2COMPONENTEN...................................................... 62
3KOELLEIDING..........................................................63
4BEDRADING ............................................................ 65
5THERMISCHE ISOLATIE VAN DE LEIDINGEN ..... 70
6WERKINGSTEST..................................................... 70
7AFLEVERING AAN DE KLANT............................... 70
ΠΕΡΙΕΧΟΜΕΝΑ
1ΠΡΟΦΥΛΑΞΕΙΣ ΓΙΑ ΤΗΝ ΑΣΦΑΛΕΙΑ...................... 71
2ΕΞΑΡΤΗΜΑΤΑ ......................................................... 72
3ΣΩΛΗΝΩΣΕΙΣ ΨΥΚΤΙΚΟΥ....................................... 73
4ΚΑΛΩ∆ΙΩΣΕΙΣ.......................................................... 75
5ΘΕΡΜΙΚΗ ΜΟΝΩΣΗ ΣΩΛΗΝΩΣΕΩΝ..................... 80
6∆ΟΚΙΜΑΣΤΙΚΗ ΛΕΙΤΟΥΡΓΙΑ.................................. 80
7ΠΑΡΑ∆ΟΣΗ ΣΤΟΝ ΠΕΛΑΤΗ................................... 80

1
CONTENTS
1PRECAUTIONS FOR SAFETY
The two indoor units of TOSHIBA simultaneous twin packaged air conditioning system are the same units. Set and
install the main and sub units taking the installation site into consideration. (Be certain to use the new refrigerant
R410A in the indoor units.) The indoor unit connected to the remote controller switch will be the main unit.
• Ensure that all Local, National and International regulations are satisfied.
• Read indoor, outdoor installation manual and this manual 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.
• 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 refrigerating 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 changed 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.
• The two indoor units of TOSHIBA simultaneous twin packaged air conditioning system are the same units.
• Set and install the main and sub units taking the installation site into consideration.
(Be certain to use the new refrigerant R410A in the indoor units.)
The indoor unit connected to the remote controller switch will be the main unit.
• TO DISCONNECT THE APPLIANCE FROM MAIN POWER SUPPLY
• This appliance must be connected to the main supply by means of a switch with a contact separation of at least 3mm.
• The remote controller switch cannot be connected to both of the two indoor units (main and sub units).
Connect it only to the indoor unit that will become the main indoor unit (Unit A). Connecting the remote controller switch to the
sub indoor unit will cause malfunction.
• Compared with R22, pressure of R410A is about 1.6 times. Unless the piping is installed correctly, gas leak may be caused
during operation such as pressure boosting. Conduct a leak test of the pipe connecting parts correctly.
• In case the actual length of the piping exceeds the standard piping length, accurately add the refrigerant referring to
Additional Refrigerant Amount.
• Thermal insulation materials for the branch pipes are not supplied as accessories. Provide thermal insulation correctly using
fitting covers or other materials sold on the market. For further information, read Refrigerant Piping and Piping Thermal
Instruction on this manual.
Improper thermal insulation work will result in a failure and a claim.
CAUTION New Refrigerant Air conditioner Installation
CAUTION Wiring
CAUTION Refrigerant Piping (Branch piping system is used for refrigerant piping)

2
2COMPONENT
The following parts are supplied as accessories of the branch pipes. Check them when opening the carton box.
WARNING
• 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 in a wrong way, electric parts may be damaged.
• When moving the air conditioner for the installation into another place, be very careful not to enter any gaseous
matter other than the specified refrigerant 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 resultantly causes pipe burst and injuries on persons.
• Do not 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 of electrical parts.
Do not store it in a wet basement or expose to rain or water.
• After unpacking the units, examine them carefully if there are possible damage.
• Do not install in a place that might increase the vibration of the unit.
• To avoid personal injury (with sharp edges), be careful when handling parts.
• Perform installation work properly according to the Installation Manual.
Inappropriate installation may result in water leakage, electric shock or fire.
• When the air conditioner is installed in a small room, provide appropriate measures to ensure that the
concentration of refrigerant leakage occur in the room does not exceed the critical level.
• Install the air conditioner securely in a location where the base can sustain the weight 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 might generate.
• Electrical work must be performed by a qualified electrician in accordance with the Installation Manual. Make sure
the air conditioner uses an exclusive power supply.
An insufficient power supply capacity or inappropriate installation may cause fire.
• Use the specified cables for wiring connect the terminals securely fix. To prevent external forces applied to the
terminals from affecting the terminals.
• 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 a combustible gas.
If a combustible gas leaks, and stays around the unit, a fire may occur.
Part Quantity Shape Use
Installation Instructions 1 This booklet For installation works
Branch pipe
Gas side 1 For refrigerant pipe branching and
collection
Liquid side 1
Noise filter 2 For connection on the P.C. board
ENGLISH

3
3REFRIGERANT PIPING
When planning a layout for Units A and B, comply with the following:
1. The lengths after branching (“a” and “b”) should be equal if feasible. Install Units A and B so that the difference of the
branching lengths becomes less than 10m if the lengths cannot be equal due to the branch pipe position.
2. Install Units A and B on the same level. If Units A and B cannot be installed on the same level, the difference in level should
be limited to 0.5 m or less.
3. Be certain to install Units A and B in the same room. Units A and B cannot be operated independently each other.
Use copper tube of Copper and copper alloy seamless pipes and tubes, with 40 mg/10 m or less in the amount of oil stuck on
inner walls of pipe and 0.8 mm in pipe wall thickness for diameters 6.4, 9.5 and 12.7 mm and 1.0 mm, for diameter 15.9 mm.
Never use pipes of thin wall thickness such as 0.7 mm.
In parentheses ( ) are wall thickness
Tolerance of pipe length and pipe head
CAUTION
Piping materials and sizes
Model (RAV -) 110 AT 140 AT, 160 AT
Pipe side
Gas side Main piping Ø15.9 (1.0)
Branch piping Ø12.7 (0.8) Ø15.9 (1.0)
Liquid side Main piping Ø9.5 (0.8)
Branch piping Ø6.4 (0.8) Ø9.5 (0.8)
a
b
LH
∆h
Ensure that the shortest pipe length complies with the following:
L+b≥5m
a≥b
Model
(RAV-)
Pipe Length (One Direction) Height Difference
Remarks
Full length
L + a or
L+b
Branch
piping
a, b
Difference
of branch
piping
length
b – a, or
a–b
Outdoor Unit -
Indoor Unit
HBetween
Indoor
Units
∆ h
Outdoor
Unit
Installed
Above
Indoor
Unit
Outdoor
Unit
Installed
Below
Indoor
Unit
110 AT
140 AT
160 AT
Below
50 m
(actual
length)
Below
15 m
(actual
length)
Below
10 m
Below
30 m
Below
30 m
Below
0.5 m
Less than
10 bends
CAUTION
Indoor unit B Indoor unit A
Branch pipe
Outdoor unit

4
Now the refrigerant pipe is installed using branch pipes supplied as accessories.
• Bend and adjust the refrigerant piping so that the branch pipes and pipe after branching become horizontal.
• Fix the branch pipes onto a wall in a ceiling or onto a column.
• Provide a straight pipe longer than 500 mm in length as the main piping of the branches.
For the complete information, read the installation instructions for outdoor units of air conditioner.
<Formula for Calculating Additional Refrigerant Amount>
Do not remove the refrigerant even if the additional refrigerant amount becomes
minus result as a result of calculations by the following formula and operate the
air conditioner as it is.
A: Additional refrigerant amount per meter of actual main piping length (kg)
B: Additional refrigerant amount per meter of actual branch piping length (kg)
L: Actual length of main piping (m)
a, b: Actual length of branch piping (m)
1. Be certain to write the additional refrigerant amount, pipe length (actual
length), head and other specification on the nameplate put on the outdoor unit for recording.
2. Seal the correct amount of additional refrigerant in the system.
• Use a leak detector manufactured specially for the HFC refrigerant (R410A, R134a, etc.) when testing R410A.
The sensitivity of leak detectors for previous HCFC refrigerants (such as R22) lowers to about 1/40 when used with
HFC refrigerants and these detectors cannot be used.
Branch pipe
Air Purging
Additional Refrigerant Amount
Additional refrigerant amount (kg) = Main piping additional refrigerant
amount (kg) + Branch piping additional
refrigerant amount (kg)
= A × (L – 18) + B × (a + b – 4)
Standard piping length Additional refrigerant
amount per Meter (kg/m)
Main piping Branch
piping AB
110 AT 18m 2m 0.040 0.020
140 AT
160 AT 18m 2m 0.040 0.040
CAUTION
Gas Leak Test
Horizontal
Inclination
Horizontal
Inclination
500 mm or
more
a
b
LH
∆h
Indoor unit B Indoor unit A
Branch pipe
Outdoor unit
Main
piping
Branch
piping
Branch
piping

5
4WIRING
1. Using the specified cables, ensure to connect the wires, and fix wires securely so that the external tension to the
cables do not affect the connecting part of the terminals.
Incomplete connection or fixation may cause a fire, etc.
Be certain to install wires by connecting them to terminals of the same numbers according to the following wiring diagram.
2. Be sure to connect earth wire. (Grounding work)
Do not connect the earths wire to gas pipe, city water pipe, lightning rod, or the earth wire of telephone.
Incomplete grounding causes an electrical shock.
3. For electric work, strictly follow the Local Regulation in each country, Indoor, outdoor, and this Installation Manual,
and use an exclusive circuit.
Capacity shortage of power circuit or incomplete installation may cause an electrical shock or a fire.
This work is unnecessary for concealed duct type, under ceiling type and 4-way air discharge cassette type (0 to 3
series).
This work is necessary for each indoor unit.
1. Disconnect the read wire between remote controller terminal and CN41 (RC) connector on the P.C.board.
2. Connect the Noise Filter between remote controller terminal and CN41 (RC) connector on the P.C.board.
3. Bind this wire and main terminal wire by bind band.
1. Install wires from the outdoor unit to the main unit as in usual wiring.
(Wires (1), (2), (3) and ground wire.)
2. Install wires (1), (2) and ground wire only when installing connection wires from the master unit to the sub unit.
1. Installing connection wires from the master unit to the sub unit.
2. Install jumper wires between the main unit and sub unit. The jumper wires of the remote controller have no polarities.
The remote controller circuits are low voltage circuits. These circuits must not be made to directly contact internal and
external wires or contained in the same conduit tubes that house internal and external wires.
(Otherwise malfunction will be caused by noise)
Indoor Unit P.C electrical parts
Internal And External Connection Wiring
Remote Controller wiring
CN41 connecter
P.C board of Indoor Unit
Bind band (Local Producement)
Change this wire to Noise filter (Accessory part)
Remote controller terminal

6
Specification of Wires Between Units and Numbers of Wires.
Procure necessary parts and perform all connection work locally.
When using the equipment at the first time, it will take a lot of time that the remote controller accepts an operation after power
was on. However, it is not a trouble.
Automatic address
While automatic addressing, the operation can not be performed on the remote controller.
For automatic addressing, Max. 10 minutes (generally, approx. 5 minutes) are required.
When power will be turned on after finish of automatic addressing;
It will require Max. 10 minutes (generally, approx. 3 minutes) that outdoor unit starts operation after power was on.
Wiring Diagram
Wiring Specification
Outdoor unit - indoor unit
(main unit)
No. of wires 4 (Include ground wire)
Wire diameter H07RN-F or 245IEC66 1.5 mm2or more
Indoor unit
(main unit)
- indoor unit
(sub unit)
No. of wires 2
Wire diameter H07RN-F or 245IEC66 1.5 mm2or more
Remote controller wiring No. of wires 2
Wire diameter Between 0.5 mm2and 2 mm2(up to 200 m)
Grounding wire of indoor sub unit H07RN-F or 245IEC66 1.5 mm2or more
NOTES
123 123
AB AB
LN
123
Remote Controller
Main Indoor unit
Outdoor Unit
Sub Indoor
Unit
Power supply

7
JWhen installing the RAV-SM1603AT-E
Specification of Wires Between Units and Numbers of Wires.
Procure necessary parts and perform all connection work locally.
When using the equipment at the first time, it will take a lot of time that the remote controller accepts an operation after power
was on. However, it is not a trouble.
Automatic address
While automatic addressing, the operation can not be performed on the remote controller.
For automatic addressing, Max. 10 minutes (generally, approx. 5 minutes) are required.
When power will be turned on after finish of automatic addressing;
It will require Max. 10 minutes (generally, approx. 3 minutes) that outdoor unit starts operation after power was on.
Wiring Diagram
Wiring Specification
Outdoor unit - indoor unit
(main unit)
No. of wires 4 (Include ground wire)
Wire diameter H07RN-F or 245IEC66 1.5 mm2or more
Indoor unit
(main unit)
- indoor unit
(sub unit)
No. of wires 2
Wire diameter H07RN-F or 245IEC66 1.5 mm2or more
Remote controller wiring No. of wires 2 (Shield wire)
Wire diameter Between 0.5 mm2and 2 mm2(up to 200 m)
Grounding wire of indoor sub unit H07RN-F or 245IEC66 1.5 mm2or more
NOTES
123 123
AB AB
LN
123
Remote Controller
Main Indoor unit
Outdoor Unit
Sub Indoor
Unit
Power supply

8
• For how to install the indoor unit, refer to the Installation Manual supplied with the indoor unit.
* Clamp the indoor/outdoor connecting wire cand the earth wire together with the ferrite core with the supplied banding band.
Stripping length power cord and connecting wire
WARNING
For simultaneous twin systems, perform the following to conform to EMC standards.
1. Be sure to use shield wire for remote controller wiring.
2. Connect earth wire independently to each indoor unit.
3. Attach the ferrite core (white) supplied with the outdoor unit to indoor/outdoor connecting wires.
• Pass indoor/outdoor connecting wires aand bthrough the supplied ferrite core and wind them making a single turn,
and then connect them to the terminals of the outdoor unit. Connect the indoor/outdoor connecting wire cand the earth
wire directly to the outdoor unit terminals.
4. Attach the clamp filter (gray) supplied with the outdoor unit to the outdoor fan motor lead wire.
• Attach the supplied clamp filter securely to the fan motor lead wire (lower) in the electric parts box of the outdoor unit.
1. Attaching the ferrite core
LN
123
123
To indoor unit
terminal block
Earth screw
Banding band
Earth screw
Power supply
terminal block
Connecting wire Pipe valve fixing plate Power supply wire
(mm)
10
170
10
110
LN
123
LN
10
50
10
40
160 10
Earth wire
Connecting wire Power supply wire
Earth wire

9
Attach the clamp filter supplied with the outdoor unit to the lower outdoor fan motor lead wire.
• Make sure that the claw of the clamp filter is securely locked.
• Pass the banding band supplied with the outdoor unit through the upper hole of the clamp filter to clamp it together with the
fan motor lead wire.
• The fan motor lead wires are connected to the connectors CN301 and CN300 on the P.C. board of the outdoor unit.
2. Attaching the clamp filter
CN301 CN300
Fan motor lead wire
(Lower side)
Clamp filter
Banding band

10
5PIPING THERMAL INSULATION
Thermal insulation was produced locally.
Be certain to thermally insulate the piping both on the liquid and gas sides.
• Use thermal insulating materials for piping higher than 120 degree in heat resistance.
Example: EPT - Ethylene, propylene, terpolymer
• Thermally insulate the branch pipe sections using fitting covers (for tees) more than 10mm in thickness or processing thermal
insulation materials as follows.
(Thermal insulation materials for the branch pipes are not supplied as accessories.)
• Seal the branch pipe sections tightly without producing gaps
6TEST RUN
Be certain to conduct a test run in accordance with the procedures contained in the operating and installation instructions
supplied with the indoor units.
7DELIVERY TO CUSTOMER
• Make certain to hand over the instruction manual supplied with the indoor units to the customer.
• Deliver the system after thoroughly explaining the contents of the instruction manual.
It is important to explain to the customer in details about simultaneously starting and stopping the two indoor units by
operating one remote controller switch.
Thermally insulated pipe of main piping
Seal seams using foamed urethane or
a similar material
Thermally insulated pipe of piping
Thermally insulated material
Outside diameter of thermally insulated pipe of branch piping
90° notch
100mm or more
Seal with vinyl tape
Cut 90°

EH99847201–d