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6.6. External input and external output
6.6.1 Terminal position
Base pan heater
(CN115: Black)
Outdoor unit PC board
Input 3
(CN133: White)
Do not bundle the cable for base pan heater with other cables.
Cable (for external
input and output)
Push mount cable tie (accessory)
(tightened with transmission cable)
Cable (for external input and output)
* If the outdoor unit is not installed in the wall, cover the exposed
part of cable with a 1 mm thick or more insulation tube.
6.6.2 External input terminal
Settings to low noise mode, cooling priority/heating priority selection, outdoor unit opera-
tion peak control setting, emergency/batch stop and electricity meter pulse are possible
from the outside.
Wiring method and specifications
* A twisted pair cable (22 AWG (0.33 mm²)) should be used. Maximum length of cable is
150 m.
* Use an external input and output cable with appropriate external dimensions, depending
on the number of cables to be installed.
* For each input, pin No. 1 is of positive polarity and pin No. 2 is of ground level.
Input 2
Input 1
CN132
CN131
(Green)
(Yellow)
P.C.B
Connected unit Connected unit Connected unit Connected unit Connected unit
En-11
Output 1 (CN136: Black)
EXT. OUT. 1
CN136 BLK
Output 2
(CN137: Blue)
Input 1
(CN131: Yellow)
Input 4
(CN134: Red)
Input 2
(CN132: Green)
CN135
ORG
PLUSE. IN
Input 5 (CN135: Orange)
CAUTION
Connection
example
(Power supply
terminal of 162
model is different
from drawing.)
When connecting
cable to Input 2
Push mount cable tie
(accessory) (tightened
with transmission
cable)
Input 4
Input 5
Input 3
CN133
CN134
CN135
(White)
(Red)
(Orange)
Operation behavior
Each input terminal works as follows.
Connector
Input signal
OFF
Input 1
CN131 (Yellow)
ON
OFF
Input 2
CN132 (Green) (*1)
ON
OFF
Input 3
CN133 (White)
ON
OFF
Input 4
CN134 (Red)
ON
Input 5
No pulse
CN135 (Orange)
Pulse
(*4)
The operations of each input terminal and the selection of function are set with the push but-
ton on the PC board of outdoor unit. About the setting, refer to "7.4. Push button setting".
NOTES:
*1: The "external input priority mode" must be set by pressing push button on PC board
of outdoor unit. (Refer to "7. FIELD SETTING".)
*2: Batch stop or Emergency stop pattern can be selected by outdoor unit PC board
push button. (Refer to "7. FIELD SETTING".)
*3: The emergency stop function mounted in this model does not guarantee the regula-
tions of each country. For this reason, sufficient checking is necessary regarding
use.
Especially, since the fact that the equipment may not be emergency-stopped in the
case of breaking of the cables to the external input terminals and communication
line, communication error due to noise, VRF external input circuit trouble, etc. must
be considered, the provision of double measures that add direct interruption of the
power supply by switch, etc. is recommended as a precaution.
*4: Pulse input to CN135 must be width 50 ms or more, and must be interval 50 ms or
more.
6.6.3 External output terminal
You can detect the operation condition of outdoor unit and the abnormal situation of both
indoor and outdoor unit.
Wiring method and specifications
Error status
This output indicates the outdoor unit
and connected indoor unit's "Normal" or
"Error" status.
Operation status
This output indicates the outdoor unit's
"Operation" status.
P.C.B
CN136 (Black) or
CN137 (Blue)
(*7)
*5: Provide a DC 12 to 24 V power supply.
Select a power supply capacity with an ample surplus for the connected load.
*6: The allowable current is 30 mA or less.
Provide a load resistance such that the current becomes 30 mA or less.
*7: Polarity is [+] for pin 1 and [-] for pin 2. Connect correctly.
Do not impress a voltage exceeding 24 V across pins 1-2.
* A twisted pair cable (0.33 mm² (22AWG)) should be used.
Maximum length of cable is 150 m.
* Use an external input and output cable with appropriate external dimensions, depending
on the number of cables to be installed.
6.6.4 Base pan heater terminal
This is the output signal for base pan heater. Output signal on, when the outdoor tempera-
ture goes down below 2°C, and signal off at the outdoor temperature 4°C.
P.C.B.
Voltage:
CN115
power supply input voltage
(Black)
(*8)
Cable
(0.82 mm² (18AWG))
*8: Connect to pin 1 and pin 3. No connection pin 2 and pin 4.
*9: The allowable current is 1 A or less.
Status
Normal operation
Low noise mode operation
Cooling priority
Heating priority
Normal operation
Outdoor unit operation peak control
Normal operation
Batch stop or Emergency stop operation (*2)(*3)
No information from electricity meter
Power usage information from electricity meter
Output
Connector
voltage
Output1
0V
Normal
CN136
DC 12-24 V
Error
(Black)
(*5)
Output2
0V
Stop
CN137
DC 12-24 V
Operation
(Blue)
(*5)
DC power supply
(External) 12-24 V
Connected load (Operation Indica-
tor or Error Indicator)
Connected unit
Base pan heater (*9)
Status
(*5)
(*6)
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