Fujitsu Airstage J-II Series Design & Technical Manual page 825

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
-
*3
Operation
Stop
CN137
Output 12 - 24 V
0V
Error
CN136
Normal
Output
12 - 24 V
0V
*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.
„ BASE HEATER
„
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).
P.C.B
1
2
CN115
(Black)
3
*4
4
*4: Connect to pin 1 and pin 3. No connection pin 2 and pin 4.
*5: The allowable current is 1 A or less.
Output voltage
0 V
DC 12-24 V *1
0 V
DC 12-24 V *1
DC power supply
(External) 12 - 24 V
+ -
Connected
load (Operation
Indicator or Error
Indicator)
connected unit
Voltage: power supply
input voltage
2
AWG18 (0.82 mm )
- (08 - 05) -
Status
Normal
Error
Stop
Operation
*1: Provide a DC 12 to 24 V power supply.
Select a power supply capacity with an ample
*1
surplus for the connected load.
*2: The allowable current is 30 mA or less.
Provide a load resistance such that the current
becomes 30 mA or less.
*3: Polarity is [+] for pin 1 and [-] for pin 2.
Connect correctly.
Do not impress a voltage exceeding 24V across
*2
pins 1-2.
Base heater
*5