Table of Contents
Advertisement
Air-Conditioners Indispensable Optional Parts
BRANCH BOX
PAC-MK53BC
PAC-MK33BC
INSTALLATION MANUAL
For safe and correct use, please read this installation manual thoroughly before installing the air-conditioner
unit.
ONLY FOR R410A OUTDOOR UNIT
ONLY FOR INDOOR USE
R410A
FOR INSTALLER
HFC
utilized
English
Advertisement
Table of Contents
Related Manuals for Mitsubishi Electric PAC-MK53BC
Summary of Contents for Mitsubishi Electric PAC-MK53BC
- Page 1 Air-Conditioners Indispensable Optional Parts BRANCH BOX utilized PAC-MK53BC R410A ONLY FOR R410A OUTDOOR UNIT PAC-MK33BC 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.
-
Page 2: Table Of Contents
• The terminal block cover panel of the unit must be firmly attached. • Place thermal insulation on the pipes to prevent condensation. If the drain- • Use only accessories authorized by Mitsubishi Electric and ask a dealer or pipe is installed incorrectly, water leakage and damage to the ceiling, floor, an authorized technician to install them. -
Page 3: Confirming Supplied Accessories
ø15.88 ø.* H Terminal block (to outdoor unit) J Terminal block (for communication cable) *Brazing K Cable clamp PAC-MK53BC (Fig.4-2) PAC-MK53BC (5-branches type) (mm) Suspension bolt: W3/8 (M10) Refrigerant pipe flared connection To indoor unit To outdoor unit Liquid pipe ø6.35... - Page 4 4. Dimensions and required servicing space of Branch Box PAC-MK33BC (3-branches type) PAC-MK33BC (Fig.4-3) (mm) Suspension bolt: W3/8 (M10) Refrigerant pipe flared connection To indoor unit To outdoor unit Liquid pipe ø6.35 ø6.35 ø6.35 ø9.5 Gas pipe ø9.5 ø9.5 ø9.5 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.
-
Page 6: Refrigerant Piping
4. Dimensions and required servicing space of Branch Box (mm) (mm) 4.3. Space required for installation and servicing 1. The space when installing with the suspension bolts. (1) Front View (Fig. 4-6) Branch box On the side of piping () 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-, 4-3). () Fit the washers (1, 2) and nuts (procure locally) to the suspension bolts. (Fig. 6-1) D ( E ) (3) Hang the unit on the suspension bolts. - Page 8 7. Installing refrigerant piping (5) Press the pipe covers 3 and 5 on the liquid piping against the unit and wrap to hold in place. (Fig. 7-4) (6) Press the pipe covers 4 and 6 on the gas piping against the unit and wrap to hold in place.
-
Page 9: Electrical Work
8. Electrical work ► Cautions for 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: •... - 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) M-NET Branch BOX #1 Outdoor unit...
- 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 * 0A current sensitivity *3 F0 = 5A or less * 30A current sensitivity *3 F0 = 3A or less * 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...
-
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 Travellers Lane, Hatfield, Herts., AL10 8XB, England, U.K. Polish Branch Krakowska 50, PL-3-083 Balice, Poland MITSUBISHI ELECTRIC TURKEY ELEKTRİK ÜRÜNLERI A.Ş. Şerifali Mah. Kale Sok. No: 41 34775 Ümraniye, İstanbul / Turkey MITSUBISHI ELECTRIC (RUSSIA) LLC 115114, Russia, Moscow, Letnikovskaya street , bld.1, 5th Please be sure to put the contact address/telephone number on this manual before handing it to the customer.