Fujitsu AIRSTAGE J-II Design & Technical Manual page 701

1-1-2. EXTERNAL OUTPUT
Connector
CN136 (Black)
CN137 (Blue)
ERROR STATUS (Master unit only)
„ „
This output indicates the outdoor unit and connected indoor unit's "Normal" or "Error" status.
OPERATION STATUS (Master unit only)
„ „
This output indicates the outdoor unit's "Operation" status.
P.C.B
+
CN136
(Black)
1
or CN137
(Blue)
2
-
*6
Operation
Stop
CN137
Output 12 - 24V
0V
Error
CN136
Normal
Output
12 - 24V
0V
*A twisted pair cable (22AWG) should be used. Maximum length of cable is 150m.
* Use an external input and output cable with appropriate external dimension, depending on the
number of cables to be installed.
BASE HEATER
„ „
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.
P.C.B
1
2
CN115
(Black)
3
*7
4
*7: Connect to pin 1 and pin 3. No connection pin2 and pin4.
*8: The allowable current is 1A or less.
Output voltage
0V
DC 12-24 V *4
0V
DC 12-24 V *4
DC power supply
(External) 12 - 24V
+ -
Connected
load (Operation
Indicator or Error
Indicator)
connected unit
Voltage: power supply
input voltage
2
AWG18 (0.82mm )
- (08 - 05) -
Status
Normal
Error
Stop
Operation
*4: Provide a DC12 to 24V power supply.
Select a power supply capacity with an ample
*4
surplus for the connected load.
*5: The allowable current is 30mA or less.
Provide a load resistance such that the current
becomes 30mA or less.
*6: Polarity is [+] for pin 1 and [-] for pin 2.
Connect correctly.
Do not impress a voltage exceeding 24V across
*5
pins 1-2.
Base heater
*8