Commercial Air Conditioner
CIRCUIT DIAGRAM OF INDOOR UNIT
0010576546
(FREEZE)
CN8
SW2
BL
P13
(HUMI)
(PUMP)
(HEAT)
Y
(L)
(FRESH)
P8 P9
P7
P12
P10
P11
(COMM)
W
(N')
(M)
(H)
SW3
P17
(L')
P14
P15
SW5
SW4
P16
CN4
CN17
CN5
MOTOR
FILTER
CN1
TRANS.
SWITCH
(DOOR)
(CONTROLLER)
(FLOAT)
CN15
CN13
(UP-DOWN)
(12V/ALM)
CN14
A
B
(ALARM)
CN16
(REMOTE)
CN11
CN12
FLOAT
REMOTE
RECEIVER
REMOTE
CN2
P
CN1
MC1
COM
MC2
N
ON
12
ON
1234
CN19
CN20
3
W:WHITE B:BLACK
R:RED Y:YELLOW
OR:ORANGE BL:BLUE
BR:BROWN
Y/G:YELLOW/GREEN
TRANS.:TRANSFORMER
FG
L
CONTROLLER
CENTRALIZED
R
BL
B
B
W
FUSE T2.0A/250VAC
(RECEIVE
BOARD)
(SWING)
(OXYGEN)
OR
YY
M
SWING
MOTOR
M
FAN
MOTOR
M
2
11
1
4
8
7
9
10
CN21
CN7
FUSE
T6.3A/250VAC
T3.15A/250VAC
P4(N2)
POWER SUPPLY
M
P5(N3)
TO OUTDOOR UNIT
R
2
3
1
B
W
L
BR
BL
N
Y/G
W
R
B
W
B
Y/G
OR
P1(L)
P2(N)
P3(N1)
FAN CAP.
Y/G
MOTOR
MOTOR
M
SWING
PUMP
R
P6(N4)
SW1
@
@
12
(ROOM/PIPE)
CN6
TEMP.
SENSOR
SENSOR
PIPING TEMP.
ROOM
6
5
13
M
M
ON
1234
ON
1234
ON
1234
?
6. IN AC242ACBEA/AC242ACEAA, DASHED LINES MARKED @
CONNECTED
TO "1 , 2" ON TERMINAL BLOCK, AND THERE ARE NO
LINES BETWEEN "1 AND L" , "2 AND N".
IN *******BIA OR ******ERA TYPE,THE POWER SUPPLY COME FROM OUTDOOR UNIT,
AND THE FUSE TYPE IS T3.15A/250VAC
7.ABOUT THE TERMINAL BLOCK,MARK "BL" IS EQUAL "B" AND THE "BR" IS EQUAL "W".REFER TO OPERATION MANUAL TO SET SW1-SW5
NOTE:
1. PARTS 1 2 3 ARE NOT
AVAILABLE
2. PARTS 4 5 6 ARE
OPTIONAL, AND THE LINE
MARKED 13 ONLY AVAILABLE
IN CONVERTIBLE TYPE
3. PART 7 NOT AVAILABLE
IN DUCT TYPE
4. PARTS AND CONNECTED
WIRES IN DASHED FRAME 8
ONLY FOR AB14/182ACBEA
5.PARTS AND CONNECTED WIRES IN DASHED FRAME 9 10 ARE NOT AVAILABLE IN AD14/182AMBEA, AND IN
CONVERTIBLE TYPE,
CORRESPONDINGLY THERE IS A CLIP ON PCB.
PARTS AND
CONNECTED
WIRES IN DASHED FRAME 11 ONLY FOR
AC142/182/242ACBEA/AC
242ACEAA
TYPE .PARTS AND
CONNECTED
WIRES IN DASHED FRAME 12 DETERMINED BY
PRODUCTS TYPE.
WIRED
CONTROLLER
10. Electric data
Model: AU122AEERA AB122ACERA
AC122ACERA AD122ALERA
AC122ACERA AD122ALERA
AB122ACERA
CIRCUIT DIAGRAM OF INDOOR UNIT
0010576979
FUSE1
CN1
CN15
CN20
LOW
MID
HIGH
CN21
CN22
N2
TRANS.-I
CN4
SIGNAL
LED3
CN3
N
CN2
L
T3.15A/250VAC
CN13
TRANS.-II
CN12
CN11
REMOTE
CN10
FLOAT
CN8
ALARM
CN7
RECEVIER
CN6
STEPMOTOR
PIPE ROOM
CN14
CONTROLLER
CN16
CN17
N1
CN18
PUMP
M
WIRED
CONTROLLER
ROOM
TEMP.
SENSOR
PIPING
TEMP.
SENSOR
RECEIVE
BOARD
FLOAT
SWITCH
REMOTE
CENTRALIZED
CONTROLLER
M
PUMP
MOTOR
TRANSFORMER
BM4
ON
1234
ON
12
ON
1234
ON
1234
BM3
BM2
BM1
STEP
MOTOR
1
Y/G
R
R
R Y BL W
B
B
W
W
Y
Y
32
Y/G
Y/G
NOTE:
1.THE PARTS IN DASHED FRAME ARE OPTIONAL
2.
REFER TO OPERATION MANUAL TO SET
BM3 AND BM4
3.USER SHOULD NOT TO SET BM1 AND BM2
W:WHITE B:BLACK BR:BROWN BL:BLUE R:RED
Y:YELLOW Y/G:YELLOW/GREEN TEMP.:TEMPERATURE
LED2
LED1
Y/G
L
BL
BL
BR
BR
N
TO OUTDOOR UNITPOWER SUPPLY
Itophome
MOTOR
CAPACITOR
M
FAN
MOTOR
Y/G
49
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