5
Outdoor unit
39
Model
name
n
o
i
t
c
n
u
F
e
c
n
a
r
a
e
p
p
A
TCB-PCIN4UL
Size: 2.87 × 3.11 (in)
[1] Error / Operation Output
Application
* Install the optional
PCB in the inverter
assembly of the
outdoor header unit.
Function
The operation error output PCB can indicate operation and error states
by connecting to the interface PCB of outdoor units.
Operation
Operation output: The operation indicator is on while any indoor unit in
the
system
is
operating.
Error output:
The error indicator is on when an error is occurred on
even one of the indoor or outdoor units in the system.
Wiring example
* [OUTPUT3] is displayed when power is turned on.
C1
Attached connection cable 1 (4wires)
CN511
Connector on interface side (green)
K1, K2
Relays
L1
Error indication Lamp
L2
Operation indication Lamp
OUTPUT1
Error output
OUTPUT2
Operation output
PJ20
Connector on optional PCB side
PS
Power supply unit
TB1
Terminal block
OUTPUT1
PJ20
OUTPUT2
OUTPUT3
TB1
L1
L2
1
2
5
6
4
3
C1
PS
PS
K1
K2
1
ON
OFF
2 3 4
SW16
Outdoor unit
interface PCB
Optional PCB
Locally procured
Header outdoor unit
Shield
wire
CN511
[PCB Installation Position]
_&;?Z^
T kinds of the optional PCBs are able to install n it.
E16-3P1_databook.book Page 39 Tuesday, December 20, 2016 3:02 PM