Lennox MCFA036S4-*P

70
12.4. MMDA Indoor Units
T2
T1
CN6
4
INDOOR COIL TEMP. SENSOR
ROOM TEMP. SENSOR
BLACK
WHITE
INDOOR UNIT
MAINBOARD
CN23
ON/OFF
Remote
Control
CN33
ALA RM
Alarm
Output
RED
CN2
CN1
BLACK
1
2
Y/G
3
CN41
YELLOW
CN8
CN18
RED
DISPLAY
BOARD
TO WIRE
CONTROLLER
10
CN10
5
CN13
M
PUMP
2
Y/G
CN3
CN9
E Y X
To CCM
Comm.Bus
DC MOTOR
DRIVER MODULE
CN13
CN3
3
CN15
5
M
CN5
WATER LEVEL SWITCH
FILTER-BOARD
RED
BLACK
FAN
Figure 36. MMDA009S4-1P, MMDA012S4-1P, MMDAA018S4-1P Ducted Units Wiring Diagram