Fujitsu AIRSTAGE J-IIIL, Design & Technical Manual

Page: 765 / 904

When connecting to Apply voltage terminals of multiple indoor units, be sure to make a branch
outside the indoor unit using a pull box, etc. as shown in example below.
1
2
3
+
+
-
-
-
In
p
u
t d
e
v
ic
e 1
In
p
u
t d
e
v
ic
e 2
DC power supply
12 to 24 V
Connected unit
PCB
CNA01
Load
resistance
Load
resistance
In
d
o
o
r u
n
it
1
2
3
+
-
-
PCB
CNA01
In
d
o
o
r u
n
it
1
2
3
+
-
-
PCB
CNA01
In
d
o
o
r u
n
it
• CNA02, CNA04: Dry contact terminal
When a power supply is unnecessary at the input device you want to connect, use the Dry contact
terminal (CNA02, CNA04).
1
2
1
2
3
Connected unit
PCB
GND
Ch1
Ch3
Ch2
CNA02
CNA04
* 1 * 1
* 2
* 1
*
1
:
Select very low current use contacts (usable at DC 12 V, DC 1 mA or less).
*
2
:
The wiring is different from Apply voltage terminals. Be sufficiently careful when wiring.
3-2. External input
- (08-11) -
3. Indoor unit
EXTERNAL INPUT AND OUTPUT EXTERNAL INPUT AND OUTPUT