En-12
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.
When connecting cable to Input 2
Cable (for external
input and output)
Cable tie (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
tubing.
About 2
1-5/8 in (550 mm)
Wiring method and speci
fi
cations
* 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
* 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
Input1
CN131
(Yellow)
Input2
CN132
(Green)
Input3
CN133
(White)
Input4
CN134
(Red)
Input5
CN135
(Orange)
P.C.B
Operation behavior
Each input terminal works as follows.
Connector
Input signal
Status
Input1
CN131 (Yellow)
OFF
Normal operation
ON
Low noise mode operation
Input2
CN132 (Green) *1
OFF
Cooling priority
ON
Heating priority
Input3
CN133 (White)
OFF
Normal operation
ON
Outdoor unit operation peak control
Input4
CN134 (Red)
OFF
Normal operation
ON
Batch stop or Emergency stop operation *2, *3
Input5
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”.
NOTE:
*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 the J-II does not guarantee the regulations of
each country. For this reason, suf
fi
cient 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 speci
fi
cations
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
Output1
CN136 (Black)
0V
Normal
DC 12-24 V *5
Error
Output2
CN137 (Blue)
0V
Stop
DC 12-24 V *5
Operation
+
+
-
P.C.B
*7
*5
*6
1
2
CN136
(Black)
or CN137
(Blue)
DC power supply
(External) 12 - 24V
Connected load
(Operation Indicator
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 2°C, and signal OFF at the outdoor temperature 4°C.
1
2
3
4
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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9380545095_IM.indb 12
11/17/2015 4:14:27 PM
11/17/2015 4:14:27 PM
