Mitsubishi Electric MAC-821SC-E User manual

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Centralized On-Off Remote Controller
MAC-821SC-E
[FOR INSTALLER]
INSTALLATION MANUAL
[FÜR INSTALLATEURE]
INSTALLATIONSHANDBUCH
[POUR L’INSTALLATEUR]
MANUEL D’INSTALLATION
[FÖR INSTALLATÖREN]
INSTALLATIONSMANUAL
[VOOR DE INSTALLATEUR]
INSTALLATIEHANDLEIDING
[PER L’INSTALLATORE]
MANUALE DI INSTALLAZIONE
[PARA EL INSTALADOR]
MANUAL DE INSTALACIÓN
[PARA O INSTALADOR]
MANUAL DE INSTALAÇÃO
[TIL INSTALLATØREN]
INSTALLATIONSMANUAL
[°π∞ ∞À∆√¡ ¶√À ∫∞¡∂π ∆∏¡ ∂°∫∞∆∞™∆∞™∏]
E°XEIPI¢IO O¢H°IøN E°KATA™TA™H™
[MONTÖR ‹Ç‹N]
MONTAJ ELK‹TABI
[ДЛЯ УСТАНОВИТЕЛЯ]
РУКОВОДСТВО ПО УСТАНОВКЕ
[ ]
[ ]

2. Accessory
Items to Prepare at the Installation Site
AMA & Contact terminal interface
(MAC-397IF-E)
BPower supply wire (2-core + ground) 1.5 mm2, in
conformity with Design 245 IEC 57.
Connection wire
Wire specification
CCVV (3-core) 0.5 mm2or equivalent
* CVV is a control cable which is sheathed in poly-
vinyl chloride with polyvinyl insulated wires inside.
DRing tongue terminal for M4
One per air
conditioner
1
One per air
conditioner
1
EPG connection 1
C
B
A
DE
2-1. Selecting Compatible Models
*
Connect to the supply terminals and leave a contact separation of at least 3 mm at each pole to
disconnect the source power pole. (When the power switch is shut off, it must disconnect all poles.)
Breaker capacity
10 A
3-1. Mounting Preparations
B, connection wire C
The note (indicated with *) has been revised as follows.
The list of items to prepare at the installation site and the illustrations have been revised.
MAC-821SC-E
ERRATA
The following corrections have been made to the MAC-821SC-E INSTALLATION MANUAL.
Wall opening dimensions 108 ✕3 mm
Rubber seal (large) 5
Switch box 3
PG connection E
The text for step 3 and the lower right portion of the illustration to the right of the text have been revised.
JG79C557H01
3 Feed the power supply wire
inside of the wall, and pull them through the switch box 3into the room
about 150 mm.
In addition, when not using a conduit for a connection wire C, be sure to
install a rubber seal (large) 5or rubber seal (small) 6into the hole in the
switch box 3before feeding the connection wire Cthrough the hole.
Use the PG connection Eprepared at the installation site to secure the
power supply wire Bin the hole in the switch box 3.
, and ground wire from
P3
P4
P6
■

2
1. Safety Instructions
• Read all Safety Instructions before using this device.
• This manual contains important safety information. Be sure to comply with all instructions.
• After installing the controller, provide this Installation Manual to the user.
Instruct users to store their room air conditioner Instruction Manual and Warranty in a safe location.
Warning
(Improper handling may have serious consequences, including injury or death.)
■Users should not install the centralized controller themselves.
Improper installation may result in fire, electric shock, or damage/water leaks if the centralized controller falls. Consult the
retailer or specialty store where you purchased the unit for referral to an installer.
■The centralized controller should be securely installed in accordance with the enclosed Installation Instructions.
Improper installation may result in fire, electric shock, or damage/water leaks if the centralized controller falls.
■The unit should be mounted in a location that can support its weight.
If installed in an area that cannot support the unit, the centralized controller could fall and cause damage.
■Securely attach the electrical component cover to the centralized controller.
If the electrical component cover of the centralized controller is not securely attached, dust or water penetration could occur,
resulting in a fire or electric shock.
■Mitsubishi components or other designated components should be used for installation.
Improper installation may result in fire, electric shock, or damage/water leaks if the centralized controller falls.
■When performing electrical work, adhere to the Technical Standards Regarding Electrical Equipment and the Inte-
rior Wiring Standards, follow the instructions provided in the Instruction Manual, and be sure to use a dedicated
circuit.
Inadequate circuit capacity or improper installation could result in a fire or electric shock.
Contents
1. Safety Instructions .......................................................................................................................... 2
2. Accessory ....................................................................................................................................... 3
3. Mounting the Centralized Controller/Direct Wiring .......................................................................... 6
4. Mounting the Centralized Controller ............................................................................................... 8
5. Test Run.......................................................................................................................................... 9
6. Room Name Display ....................................................................................................................... 9
7. Specifications.................................................................................................................................. 9
Caution
To use this centralized controller, you must have a MA &
Contact Terminal Interface (MAC-397IF-E, sold separately)
for each air conditioner unit.

3
2. Accessory
Before installing the unit, make sure that you have all the necessary parts.
Centralized controller
1ACover 1
Remove the cover with a flathead screwdriver.
BScrew
2Base plate 1
3Switch box 1
4Room name stickers 1
5Rubber seal (large) 2
6Rubber seal (small) 1
7Sealing material (adhesive) 4
8Mounting screw M4 ×30 2
■Mounting Wall
This centralized controller can be mounted on a wall with a thickness of 6–30 mm.
Since the maximum wall thickness for the centralized controller’s mounting screw M4 ×30 8is 17 mm, use screws of the
appropriate length for the wall thickness if the wall is between 17 mm and 30 mm thick.
(The best length for an M4 mounting screw is the wall thickness plus 13 mm.)
■Items to Prepare at the Installation Site
AMA & Contact terminal interface
(MAC-397IF-E)
BPower supply wire (2-core + ground) 1.5 mm2, in
conformity with Design 245 IEC 57.
Connection wire
Wire specification
CCVV (3-core) 0.5 mm2or equivalent
* CVV is a control cable which is sheathed in poly-
vinyl chloride with polyvinyl insulated wires inside.
DRing tongue terminal for M4
One per air
conditioner
1
One per air
conditioner
1
4
3
6
5
87
1 2
C
B
A

4
2-1. Selecting Compatible Models
The Installation Manual for the MA & Contact terminal interface (MAC-397IF-E) Acontains a list of room air conditioner models
(sold separately) that are compatible with this centralized controller.
■Connection Requirements
CN105
5
CN560
MAC-397IF-E
TM2
TM1
TC2
TC1
TB571
M
C
D
N
L
MAC-821SC-E
* Connect the power switch with gap of 3 mm or more when open to interrupt the source power phase. (When the
power switch is shut off, it must interrupt all phases.)
2-2. Selecting an Installation Site
•The centralized controller 1is an exposed, wall-mounted model.
Install the unit in a dry location.
•For information on selecting a mounting wall, see the “Mounting Wall”in section 2.
■Switch Box
The centralized controller power and connection wiring is generally direct wired.
The switch box 3supplied (with switch box covers for 2 units) should therefore be used for installing the centralized controller.
2-3. Electrical Work
•Use 1.5 mm2power supply wire (2-core + ground).
•For the connection wire C, use a control cable CVV (0.5 mm23-core) or equivalent product.
CVV is a control cable which is sheathed in polyvinyl chloride with polyvinyl insulated wires inside.
•Complete the power supply wire and connection wire work before mounting the centralized controller.
•The electrical work should be performed in accordance with the Technical Standards Regarding Electrical Equipment and the
Interior Wiring Standards.
2-4. Assigning Air Conditioner Device Numbers
•The numbers (1–8) displayed on the control panel of the centralized controller 1correspond to the numbers of each connected
air conditioner (device number).
•Assign air conditioner device numbers that correspond to the numbers shown on the control panel based on the structure of the
building or the layout of the rooms in which the air conditioners are installed.
Breaker *
Power supply wire B
Connection wire C
Air conditioner
Indoor unit
Ground
Power supply
~/N 220–240 V
50/60 Hz

5
2-6. Mounting Diagram
A
A
A
A
A/C Device No. 2
A/C Device No. 1
A/C Device No. 3
A/C Device No.4
Power supply
~/N 220–240 V 50/60 Hz
AMA & Contact terminal interface (MAC-397IF-E)
Power supply
wire B
Cover
Centralized controller 1
Base plate 2
Switch box 3
Connection wire C
(3-core) Rubber seal
(large) 5
Mounting screw 8
M4 ×30
Sealing material 7
(adhesive)
Mounting screw
(M4 ×10)
Wall
Rubber seal (small) 6
Switch box 3
2-5. Sample Configuration
This figure shows a sample 4-unit configuration.
Connection wire C(max. length of 100 m)
Centralized controller 1
Screw
Connection wire C
(3-core)

6
3. Mounting the Centralized Controller/Direct Wiring
3-1. Mounting Preparations
1 Remove 2 screws, and remove the base plate 2from the switch box 3.
Set the 2 screws aside, as they will be used in the section on “4-1. Mounting
the Base Plate”under “Mounting the Centralized Controller”.
2
Insert the switch box 3into the wall. Size the hole in the wall to ensure that
there is go gap between the switch box 3and the wall surface.
Use the switch box 3wall installation dimensions and opening dimensions
shown in the figure below.
3 Feed the power supply wire B, connection wire C, and ground wire from
inside of the wall, and pull them through the switch box 3into the room
about 150 mm.
If you are not using a wire conduit, pull the wires through after attaching the
rubber seal (large) 5and rubber seal (small) 6to the switch box 3open-
ing through which the wires are being fed (to protect the wires from scraping
against the edge of the steel plate).
4
After the screws have been removed from the cover of the centralized controller 1, remove the cover using a flathead
screwdriver.
Switch box 3
Screw M4
Base plate 2
Wall opening dimensions 108 ±3 mm
Wall Switch box 3
Connection
wire C
Power supply wire B
0–5 mm
150 mm 57 mm or more
* Do not make the hole any larger than
necessary.
Rubber seal (large) 5
Switch box 3
Rubber seal (small) 6
Wall opening dimensions
100 ±3 mm

7
3-2. Connecting the Connection Wire
1 Connect the power supply wire (2-core + ground) Bto the power terminal.
After they are connected, check that the wires cannot be easily pulled off.
2 Mount the ground wire using the ground wire mounting screws.
3 Connect the connection wire (3-core) Cto the MA & Contact terminal interface (MAC-397IF-E) AA
AA
A, (sold separately) corre-
sponding to the air conditioner device number of each unit on the signal terminal.
Connection wire C
(3-core)
Connection wire C
(3-core)
Power terminal
Signal terminal
Power supply wire B
(2-core + ground)
8 mm
10 mm
100 mm
•One signal terminal can be used for connecting 4 rooms.
Signal terminal
* Connect the devices corresponding to
their display number on the control panel.
Work on Connection Wire End
Note: Centralized controller side
6 mm
D
C
M
TC1
TC2
TM1
TM2
Work on Power Supply wire End
•Be sure to use 1.5 mm2power supply
wire B(2-core + ground).
•The work on power supply wire end
should be performed as shown in the fig-
ure below.
Connection wire (3-core)
MA & Contact
terminal interface A
Centralized
controller
•Connect the centralized controller to the adapters as shown below.
Washer
80 mm Ring tongue
terminal for
M4 D
Ground

8
4. Mounting the Centralized Controller
4-1. Mounting the Base Plate
Insert the base plate 2into the switch box 3, and remount it
using the screws removed in the “3-1 Mounting Preparations”.
Be sure to mount the base plate 2so the up arrow is facing
upward.
Also, be careful not to damage the wires by getting them caught
between plate and the switch box 3.
4-2. Mounting the Centralized controller
1 Before mounting the unit, apply the supplied sealing materials 7
to the base plate 2, and fill in the space between the switch box
3and the hole in the wall (a gap here could result in dew conden-
sation).
Cut the sealing material 7to a length such that it can be wrapped
around the hole in the wall based on the fixed position.
2 Connect the connection cord from the base plate 2through the
slot in the centralized controller.
3 Mount the centralized controller to the base plate 2using the supplied mounting screw 8.
Be careful not to damage the connection wires by getting them caught in the walling materials.
4 Using the supplied screw, attach the cover to the centralized controller.
5 To attach the cover to the centralized controller, fit the tabs along the top of the cover into the holes in the centralized controller
and then push the lower portion of the cover into place.
Caution
Be sure not to tighten the mounting screw 8too tight.
Doing so may disfigure the centralized controller and prevent the cover from closing securely.
Up arrow
Screw M4
Switch box 3
Base plate 2
Cover
Mounting screw 8
M4 ×30
* Pass through
the slotted hole
Base plate 2
Screw
Centralized
controller
* Pass through the
slotted hole Sealing
material 7
Connection wire C
Extra connection wire can be stored in the area
between the centralized controller and the cover.
Screw
Centralized
controller 1
Base plate 2
Wall
Switch box 3
Mounting screw 8
M4 ×30
Sealing material 7

9
6. Room Name Display
Select the appropriate stickers from the room name stickers 4supplied, and affix them to the display section of the panel.
5. Test Run
A test run should be performed after the centralized controller and the MA & Contact terminal interface (MAC-397IF-E) have all
been installed.
1
Turn the power switch on each air conditioner to ON.
2 Press the ON/OFF button on the wireless remote control for each air conditioner to make sure the air conditioner turns on,
and then press the button again to turn each unit off.
3 Supply power (AC 220–240 V) to the centralized controller.
4 Press the ON/OFF button on the upper part of the control panel of the centralized controller, and confirm that the (green)
operation indicator lamp for that device number comes on.
Also confirm that the corresponding air conditioner has turned on (the operation indicator lamp will not come on if the air
conditioner is not connected).
5
Press the ON/OFF button again, and confirm that the operation indicator lamp goes out and that the air conditioner unit turns
off.
6 Repeat steps 4 and 5 again for each device number.
7
Press the All OFF button, and confirm that all the (green) operation indicator lamps go out and that all the air conditioners turn
off.
Room name stickers 4
7. Specifications
Model MAC-821SC-E
No. of controlled air conditioners 8 units
Power ~/N, 220–240 V, 50/60 Hz
Power consumption 4 W
Ambient temperature 0–40°C
Dimensions (H ×W ×D) 120 ×120 ×51
Weight 320 g

This product is designed and intended for use in the residential,
commercial and light-industrial environment.
The product at hand is based on
the following EU regulations:
•Low Voltage Directive 73/23/EEC
•Electromagnetic Compatibility Directive 89/
336/EEC
HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN
Printed in JapanSG79Y547H01