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3. Connecting to the Remote Controller

1. Connect to the connector CN2 on the Remote controller board.

2.  Press the connector for the Timer Adapter into the CN2 connector. 

The connector can only be connected in one direction only. Do not force the connection.           

CN2

4. Locally Procured Wiring

With the Timer Adapter, variations of connection method with the locally installed circuit will 

provide different types of operating configurations.

Example: External timer operation, remote control operation

1. Basic Connection Method

SW1 -  Operating switch 

Performs operation/stopping of indoor unit.

SW2 -  Selecting switch 

For selecting whether the operation/stopping is to be performed by external circuit or 

remote control.* 

* Also includes system controller (central controller).

Remote controller 
board

CN2

Orange

Red 

Brown

Local wiring

SW1

SW2

2. Switch Settings (Refer to table at right for details.)

SW2

ON

OFF

Remote 

controller

Cannot perform 

operation/stopping

Can perform 

operation/stopping

SW1

ON

Operation

Cannot perform 

operation/stopping

OFF

Stopping

SW2 - If on.

•  Operation/stopping cannot be controlled from 

remote controller. 

Other operations (such as temperature settings 

and changing fan speed) can be performed.

• Operation/stopping can be performed by SW1.

SW2 - If off.

•  Operations can be performed from 

remote controller.

•  Operation/stopping cannot be 

performed by SW1.

5. Examples of Usage

In either case, there is a 5 to 6 second delay from the time when the operating command is sent until the unit operates.

1.  To perform operation/stopping by only remote operation or external timer and to prohibit operation/stopping by the remote controller, use the 

following circuits.

For remote operation

CN2

Orange

Red 

Brown

Local wiring

SW1

Remote controller board

For remote timer operation

CN2

Orange

T

Red 

Brown

Local wiring

Power supply for
external timer

Remote controller board

T

2.  To perform operation/stopping by remote operation or external timer and allow operation/stopping by the remote controller, use the following 

circuits.

Remote controller board

For remote operation

CN2

Orange

Red 

Brown

Local wiring

SW1

SW2

For remote timer operation

CN2

Orange

Red 

Brown

Local wiring

Power supply for
external timer

SW2

Remote controller board

T

T

3. To start operation by remote operation and then freely use remote controller, use the following circuit.

Use a momentary switch (a switch that is turned on manually and 
turns off automatically) for SW2.
Press SW2 (for 1 second or more) and the operation starts.  After 
this, the remote controller can be used for operations.

CN2

Orange

Red 

Brown

Local wiring

SW2

Remote controller board

4. To permit/prohibit the use of the remote controller by an external circuit.

CN2

Orange

Red 

Brown

Local wiring

SW2

Since this is not used, 
be sure to completely 
wrap with insulation tape

If SW2 is on, operation cannot be performed 
by the remote controller.
If SW2 is off, operation is permited.

Remote controller board

6. Wiring Restrictions

Keep the length of wire from the circuit board of the indoor unit within 10 meters (32ft). Excessive length could cause improper operation.

Use a transit relay when extending wiring such as remote wiring.

CN2

Orange

Red 

Brown

Local wiring

Power supply

X2

X1

SW2

SW1

Remote controller board

X1

X2

WT02540X03

HEAD OFFICE:

 TOKYO BLDG. , 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

Authorized representative in EU:

  MITSUBISHI ELECTRIC EUROPE B.V.

 

HARMAN HOUSE, 1 GEORGE STREET, UXBRIDGE, MIDDLESEX UB8 1QQ, U.K.

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