Fujitsu Airstage J-II Series Design & Technical Manual page 823

1-1-1. EXTERNAL INPUT
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
electricity meter connections that are can be used by the System Controller are shown below.
„ WIRING METHOD AND SPECIFICATIONS
„
*A twisted pair cable (22AWG) 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 the ground.
CN131
(Yellow)
1 2
P.C.B
Input1
connected unit
„ OPERATION BEHAVIOR
„
Connector Input signal
OFF
CN131 (Yellow)
ON
CN132 (Green) OFF
*1 ON
OFF
CN133 (White)
ON
OFF
CN134 (Red)
ON
CN135 (Orange) No pulse
*4 Pulse
Slave unit can connect only input5 (CN135).
NOTES :
*1: The "external input priority mode" must be set by pressing push button on PCB of outdoor unit.
*2: Batch stop or Emergency stop pattern can be selected by outdoor unit PCB push button.
*3: The emergency stop function is not guaranteed to meet the regulations of each country.
Consult local codes regarding use. Especially, since the emergency-stop may not function in the
case of broken wiring to the external input terminals and communication line, communication
errors due to noise, VRF external input circuit troubles, etc. In such cases, backup measures
that add direct interruption of the power supply is recommended.
*4: Pulse input to CN135 must be width 50 ms or more, and must be interval 50 ms or more.
CN132 CN133
(Green) (White)
1 2 1 2
Input2
Input3
connected unit connected unit connected unit connected unit
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
- (08 - 03) -
CN134 CN135
(Red) (Orange)
1 2 1 2
Input5
Input4
Status
Outdoor unit
Master Slave
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