Address Setting - Mitsubishi Electric City Multi R2 Series Installation Manual

⑤ Connect terminals M1 and M2 of the transmission terminal block on the indoor unit that has the lowest address
in the group to the terminal block on the remote controller.
⑥ When a system controller is connected, set SW5-1 on all outdoor units to ON.
⑦ Fix the cables securely in place with the cable strap below the terminal block.

10-6. Address setting

・Set the address setting switch as follows.
Indoor unit (Main, Sub)
Outdoor unit (OC, OS)
Main
BC controller
HBC controller
Sub
Main
ME remote controller
Sub
MA remote controller
* The outdoor units in the same refrigerant circuit are automatically designated as OC and OS. The outdoor units are designated as OC and OS
in the order of capacity from large to small (if two units have the same capacity, in the order of address from small to large).
* Make indoor unit group settings from remote controllers after turning on the power to all units.
WT08432X01
Assign the lowest address to the main indoor unit in the group, and assign sequential
addresses to the rest of the indoor units in the same group.
* In an R2 system with a sub BC controller or in a Hybrid City Multi system with a
Sub-HBC, make the settings for the indoor units in the following order. (Set the
addresses so that the addresses of ① are smaller than those of ②, and the addresses
of ② are smaller than those of ③.)
①
Indoor units that are connected to the main BC controller or main HBC
controller
②
Indoor units that are connected to sub BC controller 1 or Sub-HBC
③
Indoor units that are connected to sub BC controller 2 or Sub-HBC
Assign sequential addresses to the outdoor units in the same refrigerant system.
* To set the address to 100, the address setting switch must be set to 50.
Assign an address that equals the address of the outdoor unit plus 1. If the address that
is assigned to the main BC controller or the main HBC controller overlaps any of the
addresses that are assigned to the outdoor units or to the sub BC controller or the
Sub-HBC, use a different, unused address within the setting range.
* To set the address to 100, the address setting switch must be set to 50.
Assign an address that equals the lowest address of the indoor units that are connected
to the sub BC controller or the Sub-HBC plus 50.
* To set the address to 100, the address setting switch must be set to 50.
Assign an address that equals the address of the main indoor unit in the group plus 100.
Assign an address that equals the address of the main indoor unit in the group plus 150.
Address setting is not required. (The Main/Sub setting is required.)
GB-53
Address setting method Address
01 to 50
51 to 100
51 to 100
51 to 100
101 to 150
151 to 200
–
Address setting switch (Outdoor units)