Wiring Specifications; External Input - Fujitsu Airstage J-IVS AJ 040LCLDH Series Design & Technical Manual

2-2. Wiring specifications

Use an external input and output cable with appropriate external dimension, depending on the num-
ber of cables to be installed.
Cable type
Twisted pair cable
PCB
Connected
units
For each input, pin no.1 is of positive polarity and pin no.2 is of ground level.

2-3. External input

Setting to Low noise mode, Cooling priority/Heating priority selection, Outdoor unit operation peak
control, Batch/Emergency stop, and Electricity meter pulse are possible from the outside.
Connector
CN131 (Yellow)
1
CN132 (Green) *
CN133 (White)
CN134 (Red)
4
CN135 (Orange) *
1 The external input priority mode must be set by pressing push button on outdoor unit PCB.
* :
2 Batch stop or Emergency stop pattern can be selected by pressing push button on outdoor
* :
unit PCB.
3 The emergency stop function mounted in the equipment does not guarantee the regula-
* :
tions of each country. For this reason, sufficient checking is necessary regarding use. Es-
pecially, 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, communica-
tion error due to noise, VRF external input circuit trouble, etc. must be considered, the pro-
vision of double measures that add direct interruption of the power supply by switch, etc. is
recommended as a precaution.
4 The width of Pulse input signal to CN135 must be 50 ms or more, and the interval of the
* :
signal must be 50 ms or more.
2-2. Wiring specifications
0.33 mm
CN131 CN132
(Yellow) (Green)
1 2 1 2
Input1 Input2
Input signal
Off Normal operation
On Low noise mode operation
Off Cooling priority
On Heating priority
Off Normal operation
On Outdoor unit operation peak control
Off Normal operation
On
Batch stop or Emergency stop operation *
No pulse No information from electricity meter
Pulse Power usage information from electricity meter
Cable size
2
(22 AWG)
CN133 CN134
(White) (Red)
1 2 1
Input3 Input4
Status
- (08-3) -
Max. cable length
150 m
CN135
(Orange)
2 1 2
Input5
Outdoor
2, 3
*
unit
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○
○
○
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2. Outdoor unit