Mitsubishi Electric PAC-MKA50BC Installation Manual page 12

8. Electrical work
8.3. Switch setting
Dip switch setting (Effective only before turning on the power)
SW1
(Example)
• When the indoor units are
ON
connected to Indoor unit
OFF
A and C, turn SW1-1 and
1 2 3 4 5 6
SW1-3 to on.
Address switch (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.
Each address is set with a combination of the settings for the tens digit and ones digit.
(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
Indoor Unit C Address 26
Indoor Unit E Address 27
12
SW12 SW11
Address setting
Address setting
ONES DIGIT
TENS DIGIT
Switch
Indoor Unit A SW1-1
Indoor Unit B SW1-2
Indoor Unit C SW1-3
Indoor Unit D SW1-4
Indoor Unit E SW1-5
Not used SW1-6
SW1
Indoor unit
connections
OFF ON
Not connected Connected
Not connected Connected
Not connected Connected
Not connected Connected
Not connected Connected