Mitsubishi Electric BRANCH BOX PAC-MKA52BC Installation Manual page 12

8. Electrical work
8.3. Switch setting
Dip switch setting (Effective only before turning on the power)
SW1
ON
OFF
1 2 3 4 5 6
SW4
ON
Address switch SW11, SW12 (Effective only before turning on the power)
Actual indoor unit address setting varies in different systems. Refer to the installation manual for the outdoor unit for details on how to make the address setting.
OFF
Each address is set with a combination of the settings for the tens digit and ones digit.
1 2 3 4 5 6
(Example)
• When setting the address to "3", set the ones digit to 3, and the tens digit to 0.
• When setting the address to "25", set the ones digit to 5, and the tens digit to 2.
(Example)
• When setting the address of the branch BOX to "3", an address is assigned to each indoor unit starting with Unit A as shown below no matter if each indoor unit is con-
nected. (SW1-1~5 ON)
Indoor Unit A Address 3
Indoor Unit B Address 4
Indoor Unit C Address 5
Indoor Unit D Address 6
Indoor Unit E Address 7
• When the address is set to "25" and also 3 indoor units (Unit A, Unit C, and Unit E) are connected. (SW1-1, 1-3, 1-5 ON)
Indoor Unit A Address 25
en
Indoor Unit C Address 26
Indoor Unit E Address 27
11
(Example)
• When the indoor units are
connected to Indoor unit
A and C, turn SW1-1 and
SW1-3 to on.
7 8 9 10
SW12 SW11
Address setting Address setting
TENS DIGIT ONES DIGIT
1
2
3
SW1
4
5
6
SW1
Indoor unit
connections
OFF
Indoor unit A Not connected
Indoor unit B Not connected
Indoor unit C Not connected
Indoor unit D Not connected
Indoor unit E Not connected
Not used
ON
Connected
Connected
Connected
Connected
Connected