Mitsubishi Electric MAC-821SC-E User manual

English
OPERATING INSTRUCTIONS
• Thank you for purchasing the Mitsubishi Centralized On-Off Remote Controller.
• Please read these Operating Instructions carefully before use and then store them for future reference.
Centralized On-Off Remote Controller
MAC-821SC-E

2
1. Names and Functions of Parts
2. Using the Controller
■Turn on the air conditioner
Press the ON/OFF button for the room whose air conditioner you want to turn on.
The air conditioner will turn on and the operating indicator lamp will be illuminated.
■Turn off the individual air conditioner
Press the ON/OFF button for the room whose air conditioner you want to turn off.
The air conditioner and operating indicator lamp for that room will both turn off.
■Turn off all air conditioners
Press the All Rooms OFF button to turn off the air conditioners in all rooms.
Caution
• If the operating indicator lamp blinks repeatedly, there may be a wiring problem with the air conditioner unit. Please
contact the retailer where you purchased the product.
• After pressing a button, please wait about one second before pressing another to start another operation.
• To use the centralized controller, you must have a MA & Contact Terminal Interface (MAC-397IF-E, sold separately) for
each air conditioner unit.
When using the MA & Contact Terminal Interface, the previous air conditioner operating status is stored in memory.
Thus, if you turn on the air conditioner using the centralized controller, it will start up in the same operating mode it
was in the last time it was turned on.
Before using the centralized controller for the first time or for the first time in a long time, first set the air conditioner
to run under your preferred operating conditions (for 10 seconds or longer) using the remote control that originally
came with the unit.
• The ON/OFF button is used to turn the unit on or off.
If you want to turn on the air conditioner, make sure the operation indicator lamp is off before pressing the button.
If you want to turn off the air conditioner, make sure the operation indicator lamp is illuminated before pressing the
button.
• The air conditioners can also be operated using the remote control in each room.
If an air conditioner is turned on in a particular room, the operation indicator lamp for that room will be illuminated on
the centralized controller.
• You may not be able to control the operations of a unit from the centralized controller while the individual remote
controller for that unit is in use.
• When a unit’s individual remote controller and the centralized controller are both in use, the displays shown on the
centralized controller and the individual remote controller may differ.
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11
1Power lamp
This lamp is illuminated when the power is turned on.
22
22
2Operation indicator lamp
This lamp is illuminated when the air conditioner is run-
ning.
33
33
3ON/OFF button
Pressing this button while the air conditioner is running
(while the operating indicator lamp is on) will turn the unit
off. Pressing it while the air conditioner is off (while the op-
erating indicator lamp is off) will turn the unit on.
44
44
4All Rooms OFF button
Pressing this button turns off all operating air conditioners
and the operating indicator lamps for all rooms.
55
55
5Room name display
Select and apply one of the enclosed room name stickers
to each button.
1 2 3 4
5 6 7 8
1
2
3
4
5
POWER

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3. Maintenance
The centralized controller can be cleaned using a damp, soft cloth.
Caution
Do not use benzene or solvents on the controller, as they may damage the unit.
4. Notes
•Do not place the centralized controller in a location with a lot of humidity or dust.
•Do not place the centralized controller near heat generating equipment or in direct sunlight.
•Do not disassemble the controller yourself, as this may cause injury.
5. Specifications
Model MAC-821SC-E
No. of controlled air conditioners 8 units
Power ~/N, 220–240 V, 50/60 Hz
Power consumption 4 W
Current 0.02 A
Ambient temperature 0–40°C
Dimensions (H ×W ×D) 120 ×120 ×15
Weight 910 g
6. Products Sold Separately
Product Model
MA & Contact Terminal Interface MAC-397IF-E

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 JapanSG79N129H02