Fujitsu Airstage J-II Series Design & Technical Manual page 828

1-2. INDOOR UNIT
External input
Control input
Forced thermostat off
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1-2-1. EXTERNAL INPUT
● Indoor unit can be Operation/Stop or Emergency stop or Forced stop by using indoor unit PCB CNA01 or
CNA02.
● "Start/Stop" mode or "Emergency stop" mode or "Forced stop" mode can be selected with function setting of
indoor unit.
● 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.
● The wire connection should be separate from the power cable line.
„ INPUT SELECT
„
Use either one of these types of terminal according to the application. (Both types of terminals
cannot be used simultaneously.)
z Apply voltage terminal ([CNA01], [CNA03])
„
When a power supply must be provided at the input device you want to connect, use the Apply
voltage terminal ([CNA01], [CNA03])
Load
resistance
*a
Load
resistance
*a
Load
resistance
*a
*9: Make the power supply DC 12 to 24 V. Select a power supply capacity with an ample surplus for the
connected load.
Do not connect a voltage exceeding 24 V across pins 1-2, and 1-3.
*a: The allowable current is DC 5 mA to 10 mA. (Recommended: DC 5 mA)
Provide a load resistance such that the current becomes DC 10 mA or less.
Select very low current use contacts (usable at DC 12 V, DC 1 mA or less).
*b: The polarity is [+] for pin 1 and [-] for pin 2 and 3. Connect correctly.
External output
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Operation status
Error status
Indoor unit status
Auxiliary heater output
DC power
supply 12 - 24 V
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connected unit
- (08 - 08) -
Input select Connector
Apply voltage
Dry contact
Apply voltage
Dry contact
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*9
P.C.B
+
+
1
-
2
-
3
*b
1
2
External connect kit
(Optional parts)
CNA01 UTY-XWZXZB
CNA02 UTY-XWZXZD
CNA03 UTY-XWZXZ7
CNA04 UTY-XWZXZE
CNB01 UTY-XWZXZC
CNA01
CNA03