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Air-Conditioners Indispensable Optional Parts
BRANCH BOX
PAC-MK53BCB
PAC-MK33BCB
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 ELK TABI
INSTALLASJONSHÅNDBOK
For å sikre trygg og riktig bruk, vennligst les denne installasjonshåndboken grundig før du installerer klimaan-
legget.
ONLY FOR R410A OUTDOOR UNIT
ONLY FOR INDOOR USE
FOR INSTALLER
FÜR INSTALLATEURE
POUR L'INSTALLATEUR
VOOR DE INSTALLATEUR
PARA EL INSTALADOR
PER L'INSTALLATORE
PARA O INSTALADOR
TIL INSTALLATØREN
FÖR INSTALLATÖREN
MONTÖR
-
FOR MONTØR
DLA INSTALATORA
HFC
utilized
R410A
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Table of Contents
Related Manuals for Mitsubishi Electric PAC-MK53BCB
Summary of Contents for Mitsubishi Electric PAC-MK53BCB
- Page 1 Air-Conditioners Indispensable Optional Parts BRANCH BOX PAC-MK53BCB utilized R410A ONLY FOR R410A OUTDOOR UNIT PAC-MK33BCB ONLY FOR INDOOR USE INSTALLATION MANUAL FOR INSTALLER English For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner unit.
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Page 2: Table Of Contents
• The terminal block cover panel of the unit must be firmly attached. pipe is installed incorrectly, water leakage and damage to the ceiling, floor, • Use only accessories authorized by Mitsubishi Electric and ask a dealer or furniture, or other possessions may result. -
Page 3: Confirming Supplied Accessories
Terminal block (to indoor unit on control board) PAC-SJ72RJB-E ø15.88 ø19.05 Terminal block (to outdoor unit) Terminal block (for communication cable) PAC-MK53BCB (5-branches type) Cable clamp (mm) PAC-MK53BCB (Fig.4-2) Suspension bolt: W3/8 (M10) Refrigerant pipe brazed connection To indoor unit... - Page 4 4. Dimensions and required servicing space of Branch Box PAC-MK33BCB (3-branches type) PAC-MK33BCB (Fig.4-3) (mm) Suspension bolt: W3/8 (M10) Refrigerant pipe brazed connection To indoor unit To outdoor unit Liquid pipe ø6.35 ø6.35 ø6.35 ø9.52 Gas pipe ø9.52 ø9.52 ø9.52 ø15.88 Fig.
- Page 5 4. Dimensions and required servicing space of Branch Box Remove the electric cover, service panel, and top panel. Install the top panel on the opposite surface. Electric cover Top panel Service panel Top panel Fasten the screws in each part. Install the service panel on the opposite surface.
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Page 6: Refrigerant Piping
4. Dimensions and required servicing space of Branch Box 4.3. Space required for installation and servicing (mm) (mm) . The space when installing with the suspension bolts. (1) Front View (Fig. 4-6) Branch box On the side of piping (2) Side View (Fig. 4-7, Fig. 4-8, Fig. 4-9) For indoor installations Ceiling board 180-200... -
Page 7: Mounting The Branch Box
6. Mounting the Branch Box (mm) (1) Install the suspension bolts (procure locally) at the specified pitch (Fig. 4-2, 4-3). (2) Fit the washers ( , ) and nuts (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). - Page 8 7. Installing refrigerant piping (1) Remove the rubber caps from the outdoor unit side connection pipe (2) After brazing to the liquid pipe side and to the gas pipe of the refrigerant pipe connected to the outdoor unit side, braze the branch box to connect. (Fig. 7-3, 7-4) When installing the unit on a wall, do not braze the joint pipe to the unit first.
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Page 9: Electrical Work
8. Electrical work Warning: • Always use dedicated circuits with breakers, and at the rated voltage. Power supply circuits with insufficient capacity, and bad workmanship during installation, may result in electric shock or fire. Caution: • Be sure to establish an earth. Do not earth the unit to a utility pipe, arrester, or telephone earth. - Page 10 8. Electrical work 8.2. External wiring procedure (Fig. 8-8) Supply power (1-phase) separately to branch box and outdoor Power supply (1-phase) from Outdoor unit unit * Refer to installation manual of the outdoor unit Circuit breaker M-NET Branch BOX #1 (5-branches type) Outdoor unit Circuit breaker...
- Page 11 8. Electrical work Note: Connect wiring in accordance with the terminal block names to ensure correct polarity. 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.
- Page 12 8. Electrical work Minimum wire thickness (mm²) Breaker for wiring Total operating current of the indoor unit Capacity (A) Fuse (A) Ground-fault interrupter *1 (NFB) Main cable Branch Ground F0 = 16A or less *2 20A current sensitivity *3 F0 = 25A or less *2 30A current sensitivity *3 F0 = 32A or less *2 40A current sensitivity *3...
- Page 13 8. Electrical work 8.3. Switch setting SW12 SW11 Address setting Indoor unit Indoor unit Model selection Address setting setting connections ONES DIGIT TENS DIGIT Dip switch setting (Effective only before turning on the power) Indoor unit A Not connected Connected (Example) Indoor unit B Not connected...
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Page 14: Test Run
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. •... - Page 15 This product is designed and intended for use in the residential, commercial and light-industrial environment. Importer: Mitsubishi Electric Europe B.V. Capronilaan 46, 1119 NS, Schiphol Rijk, The Netherlands French Branch 25, Boulevard des Bouvets, 92741 Nanterre Cedex, France German Branch...
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