Branch Box Installation Manual

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Air-Conditioners Indispensable Optional Parts

BRANCH BOX

PAC-MK51BC

PAC-MK31BC

ONLY FOR R410A OUTDOOR UNIT

ONLY FOR INDOOR USE

HFC

utilized

R410A

INSTALLATION MANUAL

For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner

unit.

INSTALLATIONSHANDBUCH

Zum sicheren und ordnungsgemäßen Gebrauch der Klimaanlage das Installationshandbuch gründlich

durchlesen.

MANUEL D’INSTALLATION

Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous

assurer d’une utilisation correcte.

INSTALLATIEHANDLEIDING

Voor een veilig en juist gebruik moet u deze installatiehandleiding grondig doorlezen voordat u de aircondi-

tioner installeert.

MANUAL DE INSTALACIÓN

Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de

aire acondicionado.

MANUALE DI INSTALLAZIONE

Per un uso sicuro e corretto, leggere attentamente questo manuale di installazione prima di installare il con-

dizionatore d’aria.

MANUAL DE INSTALAÇÃO

Para segurança e utilização correctas, leia atentamente este manual de instalação antes de instalar a uni-

dade de ar condicionado.

INSTALLATIONSMANUAL

Læs venligst denne installationsmanual grundigt, før De installerer airconditionanlægget, af hensyn til sikker

og korrekt anvendelse.

INSTALLATIONSMANUAL

Läs denna installationsmanual noga för säkert och korrekt bruk innan luftkonditioneringen installeras.

MONTAJ ELKİTABI

Emniyetli ve doğru biçimde nasıl kullanılacağını öğrenmek için lütfen klima cihazını monte etmeden önce bu

elkitabını dikkatle okuyunuz.

РУКОВОДСТВО ПО УСТАНОВКЕ

Для осторожного и правильного использования прибора необходимо тщательно ознакомиться с данным руководс-

твом по установке до выполнения установки кондиционера.

ΕΓΧΕΙΡΙΔΙΟ ΟΔΗΓΙΩΝ ΕΓKATAΣTAΣHΣ

Για ασφάλεια και σωστή χρήση, παρακαλείστε διαβάσετε προσεχτικά αυτό το εγχειρίδιο εγκατάστασης πριν

αρχίσετε τηv εγκατάσταση της μονάδας κλιματισμού.

Deutsch

Français

English

VOOR DE INSTALLATEUR

Nederlands

PARA EL INSTALADOR

Español

PER L’INSTALLATORE

Italiano

PARA O INSTALADOR

Português

TIL INSTALLATØREN

Dansk

FÖR INSTALLATÖREN

Svenska

MONTÖR İÇİN

Türkçe

ДЛЯ УСТАНОВИТЕЛЯ

Русский

FÜR INSTALLATEURE

POUR L’INSTALLATEUR

Ελληνικά

ΓΙA AYΤΟΝ ΠΟΥ ΚΑΝΕΙ ΤΗΝ ΕΓΚΑTAΣΤAΣΗ

FOR INSTALLER

Summary of content (14 pages)

PAGE 1
Air-Conditioners Indispensable Optional Parts BRANCH BOX PAC-MK51BC HFC PAC-MK31BC utilized ONLY FOR R410A OUTDOOR UNIT R410A ONLY FOR INDOOR USE INSTALLATION MANUAL FOR INSTALLER For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit. INSTALLATIONSHANDBUCH FÜR INSTALLATEURE Zum sicheren und ordnungsgemäßen Gebrauch der Klimaanlage das Installationshandbuch gründlich durchlesen.
PAGE 2
Contents 1. 2. 3. 4. 5. Safety precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Selecting a location for installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Confirming supplied accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dimensions and required servicing space of Branch Box . . . . . . . . . . . . . . . . Refrigerant piping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PAGE 3
. Confirming supplied accessories 3.1. Check the Branch Box accessories and parts 8 Accessory name 1 5 4 3 7 1 2 2 3 4 5 6 7 8 9 6 9 Q’ty PACPACMK31BC MK51BC Washer (with insulation) Washer Pipe cover (Liquid) Pipe cover (Gas) Pipe cover (Liquid) Pipe cover (Gas) Joint cover (Liquid) Joint cover (Gas) Band 4 4 4 1 1 3 3 1 1 16 4 1 1 5 5 3 3 24 TO OUTDOOR UNIT TO OUTDOOR UNIT TO INDOOR UNITS TO INDOOR UNITS Fig. 3-1 4.
PAGE 4
. Dimensions and required servicing space of Branch Box PAC-MK31BC (3-branches type) PAC-MK31BC (Fig.4-3) Suspension bolt: W3/8 (M10) Refrigerant pipe flared connection (mm) A 320 mm B ø6.35 ø9.52 C ø6.35 ø9.52 To outdoor unit ø9.52 ø15.88 A 402 Liquid pipe Gas pipe A ø6.35 ø9.52 24 B 12 C 450 233 96 102 81 90 278 87 40 70 G 47 J 170 65 C B C 25 A B A K 25 D F E H 25 70 70 Fig. 4-3 4.1. The direction of the piping can be changed. (Fig. 4-4). [Work Procedures] (Fig.
PAGE 5
4. Dimensions and required servicing space of Branch Box 4 Fasten the screws in each part. 5 Install the service panel on the opposite surface. B Service panel B 6 Fasten the screws. 7 Install the electric cover on the opposite surface. A Electric cover A 8 Fasten the screws. Fig.
PAGE 6
4. Dimensions and required servicing space of Branch Box (mm) (mm) (2) C 30 (1) NO YES NO 170 A NO *2 B 50 *1 450 278 250 250 D 180-200 Fig. 4-6 250 E *3 Fig. 4-7 (mm) E D Fig. 4-13 450 4.2. Space required for installation and servicing Fig. 4-8 (mm) 450 Fig. 4-9 *2: (3) (mm) G 50 600 mm” . (mm) Min. 50 2 Min. is “ In the case of “ 450 mm”, prepare a maintenance hole at a PCB side (as it is shown in Fig. 4-8, Fig. 4-9), and “Min.
PAGE 7
6. Mounting the Branch Box A Min. 50 Min. 30 C D(E) B F G Min. 50 (mm) B H Fig. 6-1 (1) Install the suspension bolts (procure locally) at the specified pitch (Fig. 4-2, 4-3). (2) Fit the washers and nuts (1, 2, procure locally) to the suspension bolts. (Fig. 6-1) (3) Hang the unit on the suspension bolts. (4) Fully tighten the nuts (check ceiling height). (5) Use a level to adjust the branch box to the horizontal.
PAGE 8
7. Installing refrigerant piping Note: A special flare nut (optional or attached to the indoor unit) is needed to some indoor units. Please refer to the installation manual of outdoor unit and indoor unit for details. F Band 9 G Pipe covers 3456 H Tighten J Refrigerant piping L Thermal insulation for refrigerant piping C D 4 5 3 ► Use the following procedures for indoor connection part which indoor unit is not connected. (Fig.
PAGE 9
8. Electrical work C A B B Fig. 8-1 F E Fig. 8-2 G D P Q R H~O Fig. 8-3 Fig.
PAGE 10
8. Electrical work 8.2. External wiring procedure (Fig.
PAGE 11
8. Electrical work Note: 1 Connect the lines (B), (C) in accordance with the terminal block names to ensure correct polarity. 2 As for lines (C), S1 and S2 are for connecting the power source. And S2 and S3 are for signals. S2 is common cable for the power source and signal. M-NET Branch BOX (5-branches type) Indoor unit TB3A TB2B L S1 S1 N S2 S2 S3 S3 A ROOM (A) Main power line/ Earth line 3-core 2.
PAGE 12
8. Electrical work Total operating current of the indoor unit F0 = 16A or less *2 F0 = 25A or less *2 F0 = 32A or less *2 Minimum wire thickness (mm²) Main cable Branch Ground 1.5 1.5 1.5 2.5 2.5 2.5 4.0 4.0 4.0 Capacity (A) Fuse (A) Breaker for wiring (NFB) Ground-fault interrupter *1 16 25 32 16 25 32 20 30 40 20A current sensitivity *3 30A current sensitivity *3 40A current sensitivity *3 Apply to IEC61000-3-3 about max. permissive system impedance.
PAGE 13
8. Electrical work 8.3. Switch setting SW4 Model selection SW12 Address setting TENS DIGIT SW11 Dip switch setting (Effective only before turning on the power) Indoor Unit A SW1 ON OFF 1 2 3 4 5 6 (Example) • When the indoor units are connected to Indoor unit A and C, turn SW1-1 and SW1-3 to on. SW4 ON OFF 1 2 3 4 5 6 7 8 9 10 (Example) • When the indoor unit is cooling only system, turn SW4-5 to on.
PAGE 14
9. Test run • Refer to the “Test run” section of the installation manual of the indoor units and outdoor unit. • When the branch box and outdoor power source are separate, turn on the power of the branch box first, and then turn on the outdoor unit power. • After power is supplied or after an operation stop for a while, a small clicking noise may be heard from the inside of the branch box. The electronic expansion valve is opening and closing. The unit is not faulty.