72
12.5. MCFA and MCFB Indoor Units
DC MOTOR
DRIVER MODULE
C N 1 3
C N 3
3
CN1 5
5
M
CN6
T2
T1
4
INDO OR C OIL T EMP. SENS OR
ROOM TEMP. SENSOR
BLACK
WHITE
INDOOR UNIT MAINBOARD
CN3
R E D
C N 2
C N 1
Y/G
B L A C K
C N 4 1
YELLOW
CN5
W AT ER L EV EL S W IT CH
R e a cto r
CN8
CN18
RED
RED
• • • • •
This symbol indicates the element is
optional,the actual shape shall prevail.
C N 1 9
BLUE
BLACK
To C C M
C o m m .B u s
WHITE
X Y
E
Y/G
1
2 3
FILTER-BOARD
BLACK
RED
CN2 3
ON/O FF
CN3 3
ALA RM
Alarm
Output
Remote
Control
Ceiling-Floor Type
CN21
M
5
5
VSWING(INACTIVE)
CN24
M
5
SWING
FAN
DISPLAY
BOARD
10
CN10A
TO WIRE
CONTROLLER
5
Figure 39. MCFA012-18S4-1P Unit Wiring Diagram - Discontinued Spring 2016
0
8
4
1
2
3
5
6
7
C
9
A
B
D
E
F
1
2
ON
0
8
4
1
2
3
5
6
7
C
9
A
B
D
E
F
1
2
ON
0
8
4
1
2
3
5
6
7
C
9
A
B
D
E
F
1
2
ON
0
8
4
1
2
3
5
6
7
C
9
A
B
D
E
F
1
2
ON
S1+S 2
0~F 0~F 0~F
0~F
ADDR ESS
CODE
0~15
16~31
32~47
48~63
FOR
CCM UNIT ADDR ESS
DC MOTOR
DRIVER MODULE
C N13
CN3
3
CN15
5
M
CN6
T2
T1
4
INDO OR COIL TEMP. SENS OR
ROOM TEMP. SENSOR
BLACK
WHITE
INDOOR UNIT MAINBOARD
CN3
RED
C N2
C N1
Y/G
BLACK
C N41
YELLOW
CN5
WATER LEVEL SWITCH
Inductor
CN8
CN18
RED
RED
1
ON
1
ON
COOLING
PRIORITY
HEATING
PRIORITY
FACTORY
SETTING
MODE
C N19
BLUE
BLACK
To LVM
Comm.Bus
WHITE
X Y E
Y/G
1
23
FILTER-BOARD
BLACK
RED
•••••• •••••••••• •••••• ••••••••
1
ON
1
ON
SW2
1
2
ON
1
2
ON
1
2
ON
1
2
ON
SW6
CODE
0
FOR TEMP. COMPENSATION(HEATING)
2
4
FACTORY
SETTING
EEPROM
default
1
2
ON
1
2
ON
1
2
ON
1
2
ON
SW1
TEL0
24
15
8
EEPROM
default
FACTORY
SETTING
FOR ANTI-C OLD WIND
1
ON
1
ON
FACTORY
SETTING
FOR SETTING AUTO-R ESTART
SW3
MODE
AUTO-RESTART
NOT AUTO-RESTART
CN23
ON/O FF
CN33
ALARM
Alarm
Output
Remote
Control
Ceiling-Floor Type
CN21
M
5
5
VSWING(INACTIVE)
CN24
M
5
SWING
FAN
FOR MODE CONFLICT SETTING
DISPLAY
BOARD
10
CN10A
TO WIRED
CONTROLLER
2
CN40
TO
PROGRA MMABL E
WIRED
CONTRO LLE R
4
2
•••••
COMPONENT IN DASH
LINE IS OPTIONAL
OR FIELD WIRING.
Note: The
programmable
wired controller
and regular
wired controller
use the same
wiring connector
Figure 40. MCFB018S4-*P Unit Wiring Diagram
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