Specifications

153
(11) External control (remote display)/control of input signal
(a) External control (remote display) output
Following output connectors (CNT) are provided on the control circuit board of indoor unit.
(i) Operation output: Power to engage DC 12V relay (provided by the customer) is outputted during operation.
(ii) Heating output: Power to engage DC 12V relay (provided by the customer) is outputted during the heating operation.
(iii) Compressor ON output: Power to engage DC 12V relay (provided by the customer) is outputted while the compressor is
operating.
(iv) Error output: When any error occurs, the power to engage DC 12V relay (provided by the customer) is outputted.
(b) Control of input signal
(Make sure to connect the standard remote control unit. Control of input signal is not available without the standard remote control
unit.) Control of input signal (switch input, timer input) connectors (CNT) are provided on the control circuit board of the
indoor unit. However, when the operation of air conditioner is under the Center Mode, the remote control by CnT is invalid.
(i) At shipping from factory (SW5-1 on PCB OFF)
1) Input signal to CnT OFF → ON [Edge input] Air conditioner ON
2) Input signal to CnT ON → OFF [Edge input] Air conditioner OFF
Notes (1) The overall length of the signal wire shall be less than 1000m.
(2) The length of remote control signal wire and crossover for remote controller between room shall be less than 600m.
Outdoor
unit
Indoor
unit
No.1
Indoor
unit
No.2
Indoor
unit
No.3
Indoor
unit
No.16
Outdoor
unit
Signal
wire
(1)
(1)
Signal wire
Remote control
signal wire
(2)
(2)
Remote control
signal wire
CnT Input
A Unit
B Unit
OFF
OFF
ON
ON
ON
ON
OFF
OFF
OFF
ON
ON
ON
OFF
OFF
OFF
(ii)Arrange the terminal block (X, Y, Z) of the remote controller as shown below for the simultaneous control, and lay cross
over in each indoor unit.
(ii) When SW5-1 on the PCB of indoor unit is turned on at the field.
Input signal to CnT becomes valid at OFF → ON only and the motion of air conditioner [ON/OFF] is inverted.
CnT Input
A Unit
B Unit
OFF
OFF
OFF
ON
OFF
ON
OFF
ON
ON
OFF
OFF
Remote coneroller