Commercial Air Conditioner
Model: AD09/12/14/182XLERA
-18
-
4 Wiring of indoor unit
The distance between the signal wires and the power cabes should be at least 50mm.
C
B
A
Q
P
1(L) 2(N)
2(N)
1(L)
P
Q
A
B
C
L N
C1 C2
To other
indoor unit
To wired controller(A,B,C)
To outdoor unit
(P Q)
06
FAILURE CODE
(CHECK THE WIRED
REMOTE
CONTROLLER)
TROUBLE SHOOTING
(indoor unit)
Failure code
(* shows the failure is resumable)
Abnormal communication
between wired controller and
indoor unit PCB
Drainage system abnormal
The short-connector disconnected, or at wrong
position, or the float switch broken down or the
float switch disconnected,or at wrong position
*
*
*
*
*
*
*
Waring:
1.Incorrect address setting will cause abnormal to the system.
2.Communication cable must be use sheilded type.
Communication cable (Shield wire):
H05RN-F 2X1.5 mm
2
Power cable : H05RN-F 3G 2.5 mm
2
POSSIBLE REASONS
Faulty temperature sensor
Tai
01
Sensor disconnected, or broken, or at wrong
position, or short circuit
Faulty temperature sensor
Tc1
Sensor disconnected, or broken, or at wrong
position, or short circuit
Faulty temperature sensor
Tc2
03
Sensor disconnected, or broken, or at wrong
position, or short circuit
Faulty temperature sensor
Tm
04
Sensor disconnected, or broken, or at wrong
position, or short circuit
Faulty EEPROM on indoor
unit PCB
05
Faulty indoor unit PCB
Abnormal communication
between indoor and outdoor unit
Wrong connection, or the wires be
disconnected, or wrong address setting of
indoor units, or faulty power supply or faulty
PCB
02
Abnormal communication
between chip TMP/807 and chip
TMP/846
0E
Faulty indoor unit PCB
Indoor unit address repeated
09
Wrong setting of indoor unit address
07
Wrong connection, or use the wired controller
be disconnected, faulty PCB
08
