4
AY-XP07ER–AE-X07ER
AY-XP09ER–AE-X09ER
AY-XP12ER–AE-X12ER
WIRING DIAGRAMS
N
1
N
1
2
N
1
2
WIRING DIAGRAM
<CB878>
INDOOR UNIT
OUTDOOR UNIT
TERMINAL BOARD1
POWER
SUPPLY
SINGLE
PHASE
GREEN-YELLOW
BLUE
BLACK
LOUVER MOTOR
(TOP)
LOUVER MOTOR
(BOTTOM)
ROOM TEMP.
THERMISTOR
PIPE TEMP.
THERMISTOR
TH1
TH2
YELLOW
ORANGE
CNA
CNB
R76
IN
OUT
S
N
BLUE
BLACK
RED
NF1
DB1
C14A
FU1
250V
3.15A
FU2
250V
2A
NR1
SSR
RY1
C23
NF2
C28
CN5
C98
C99
CN1
C97
C96
FAN MOTOR
TERMINAL BOARD 2
TERMINAL BOARD
CLUSTER
GENERATOR
POWER
SUPPLY UNIT
CN2
CN3
BCN1
BCN3
BCN201
CN102
BCN101
CN101
DISPLAY
BOARD
UNIT
RECEIVER
BOARD
UNIT
CONTROL BOARD UNIT
SERIAL
SIGNAL
CIRCUIT
EVAPORATOR
LED INDICATION FOR SELF-DIAGNOSIS
Abnormal contents
Temperature
Indicator
Blinking No.
1
2
5
6
7
9
11
13
14
17
18
Short circuit of the Thermistor
Overheat error (compressor and cycle)
Open circuit of the Thermistor
Abnormal DC current
Abnormal AC current
Abnormal outdoor fan motor
Abnormal Thermistor or four way valv
Abnormal PAM voltage and PAM clock signal
Open circuit of serial signal line
Short circuit of serial signal line
19
Abnormal fan motor of indoor unit
Rotation error of the compressor or compressor lock
<Indication of the abnormal condition>
LED indicator will blink, if the set is in abnormal condition.
Figure W-1. Wiring Diagram for AY-XP07ER / AY-XP09ER / AY-XP12ER
Figure W-2. Wiring Diagram for AE-X07ER / AE-X09ER / AE-X12ER
