En-11
6.6. External input and external output
6.6.1 Terminal position
CN136 BLK
EXT. OUT. 1
CN137 BLU
EXT. OUT. 2
CN131
YEL
CN132 GRN
CN134 RED
CN133 WHT
CN135
ORG
EXT. IN. 1
PLUSE. IN
EXT. IN. 4
EXT. IN. 2
EXT. IN. 3
CN115 BLK
BASE HEATER
Base heater
(CN115: Black)
Outdoor unit PC board
Input 4
(CN134: Red)
Input 3
(CN133: White)
Input 2
(CN132: Green)
Input 1
(CN131: Yellow)
Input 5 (CN135: Orange)
Output 1 (CN136: Black)
Output 2
(CN137: Blue)
CAUTION
Do not bundle the cable for base heater with other cables.
When connecting
cable to Input 2
Cable (for external
input and output)
Push mount cable tie (accessory)
(tightened with transmission cable)
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 0.039 in (1 mm) thick or more insulation tubing.
6.6.2 External input terminal
Setting to low noise mode, cooling priority/heating priority selection, outdoor unit operation
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 dimension, 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.
Connected unit Connected unit Connected unit Connected unit Connected unit
Input 1
CN131
(Yellow)
Input 2
CN132
(Green)
Input 3
CN133
(White)
Input 4
CN134
(Red)
Input 5
CN135
(Orange)
P.C.B
Operation behavior
Each input terminal works as follows.
Connector
Input signal
Status
Input 1
CN131 (Yellow)
OFF
Normal operation
ON
Low noise mode operation
Input 2
CN132 (Green) *1
OFF
Cooling priority
ON
Heating priority
Input 3
CN133 (White)
OFF
Normal operation
ON
Outdoor unit operation peak control
Input 4
CN134 (Red)
OFF
Normal operation
ON
Batch stop or Emergency stop operation *2, *3
Input 5
CN135 (Orange) *4
No pulse
No information from electricity meter
Pulse
Power usage information from electricity meter
The operations of each input terminal and the selection of function are set with the push
button on the PC board of outdoor unit. About the setting, please 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 wiring 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.
Connector
Output
voltage
Status
Output 1
CN136
(Black)
0V
Normal
DC 12-24 V
*5
Error
Output 2
CN137
(Blue)
0V
Stop
DC 12-24 V
*5
Operation
P.C.B
CN136 (Black) or
CN137 (Blue)
DC power supply
(External) 12-24 V
Connected load (Operation Indica-
tor or Error Indicator)
Connected unit
*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 (22 AWG (0.33 mm²)) should be used.
Maximum length of cable is 492 ft (150 m).
* Use an external input and output cable with appropriate external dimension, depending
on the number of cables to be installed.
6.6.4 Base heater terminal
This is the output signal for base heater. Output signal ON, when the outdoor temperature
goes down below 36 °F (2 °C), and signal OFF at the outdoor temperature 39 °F (4 °C).
Voltage:
power supply input voltage
cable
(18AWG (0.82mm²))
P.C.B.
Base heater *9
CN115
(Black)
*8
*8: Connect to pin 1 and pin 3. No connection pin 2 and pin 4.
*9: The allowable current is 1 A or less.
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2018/12/27 8:39:05
2018/12/27 8:39:05
