Specifications

89
The MA remote controller has a Main/Sub setting. To connect two controllers to a system, one of
them should be set to Sub.
5Main/Sub setting on the MA remote controller "When the MA remote controller is used (Factory
setting: Main)"
The need for address settings and the address setting range depend on the system configuration.
See "4. An Example of a System to which an MA Remote Controller is connected" for details.
1Address Setting
2Connection of the power jumper on the outdoor unit (Factory setting: Power jumper is connected to
CN41.)
3Setting the central control switch for outdoor units
System configuration
Single refrigerant
circuit system
Connection to the
system controller
Power supply
device
Group operation of the indoor units connected to
different outdoor units
Connection of the power
jumper on the outdoor unit
Leave the power jumper
on CN41 as it is.
Without connection to the system controller
With connection to the system controller (Note 1)
System configuration
Leave it to off. (Factory setting)
ON
Central controller switch settings (SW2-1) (Note 2)
(Note.1) When only the LM adapter is connected, leave DIP SW2-1 to OFF as it is.
(Note.2) Set SW2-1 on all outdoor units in the same refrigerant circuit to the same setting.
Address set at
Unit or controller Mark Setting procedure time of shipment
Model
Indoor unit Main/Sub IC
01 to 50 For the indoor units of the same group, set the lowest address for the indoor unit
✻ 1
Note 1,4 to be used as the main, and set consecutive numbers for the addresses of indoor units.
MA remote controller MA
An address does not need to be set. (However, when operation is to be performed with two remote
controllers, the main/sub selector settings need to be set.)
Main
OC 51 to 100
Set an address equivalent to the lowest indoor unit address in the same refrigerant circuit
Outdoor unit system + 50. Set consecutive numbers for the addresses of outdoor units in the same 00
OS Note 2
refrigerant circuit system. OC and OS are differentiated automatically. (Note 3)
Centralized
controller
TR, SC 0, 201 to 250 Any address within the address range on the left. 000
System remote
controller
SR, SC 201 to 250 Any address within the address range on the left. 201
Schedule timer
System (M-NET compatible)
ST, SC 201 to 250 Any address within the address range on the left. 202
controller ON/OFF remote
controller
AN, SC 201 to 250 Set an address that is the smallest group number you want to control + “200”.
201
Group remote
controller
GR, SC 201 to 250 Set an address that is the smallest group number you want to control + “200”.
LM adapter
P250, P500
P300-F, P600-F
P750
P900-F
No.1=00 No.1=01
No.2=02
SC 201 to 250 Any address within the address range on the left. 247
Note 1: If an address is a duplicate of an indoor unit or outdoor unit of another refrigerant circuit system, set it to another address, which is within the setting range and is
not in use.
Note 2: To set the address of an outdoor unit to
Note 4: Two control boards are installed on P750-F and P900-F indoor units. Be sure to assign an address to the No.1 and No. 2 control boards so that the No. 2
control board address equals the No.1 control board address plus 1.
“100,” set it as 50.
Note 3: The outdoor units OC and OS of the same refrigerant circuit system are differentiated automatically.
The order of OC and OS becomes from the one with the highest capacity. (If the capacity is the same, the order is from the one with the lowest address.)
Address setting
range
✻ 1
4Selecting the sensor for indoor temperature detection (Factory setting: SW1-1 is set to OFF.)
To use the built-in sensor on the remote controller, set the DIP SW1-1 to ON.
✻ Some models of remote controllers do not have a built-in temperature sensor.
Use the built-in temperature sensor on the indoor unit instead.
✻ When using the built-in sensor on the remote controller, install the remote controller where the room
temperature can be detected.
6For the models which has more than one control board in an indoor unit, make SW1-1/SW3-8
settings of all control boards to be exactly the same.