Lennox MMA048S4 User Manual

75
Recfier, FRD,
IGBT andIPM
CN26
CN28
Port Descripon Voltage
CN24 Port fortestboard 5V/DC
CN27 Communicaonportwithkey board
CN30 Port forOLP (Compressortop)
CN28
Port forHi-pressure and low-pressure
switches
CN42
Powerfor heatsink (TF) temperature
sensor
5V/DC
CN26
Poweroutput forcondenser (T3),
ambient(T4)and discharge (Tp)
temperaturesensors
5V/DC
CN16 Poweroutput for EEV 12V/DC
CN11, 12 Port forpower cable(N, L) 230V/AC
CN38 Poweroutput for4-way valve230V/AC
CN21 Poweroutput forchassisheater230V/AC
CN20 Poweroutput forcompressorheater230V/AC
CN32 Port forDCfan 0-310V/AC
UVWPortfor Compressor0-310V/AC
CN12
CN21
24K/36K (1 Phase, NewGas -cooler)MainPCB
CN20
CN38
CN11
CN16
CN24
UVW
U
V
W
CN32
C
N
C
3
2
N
2
N
N
8
CN27
C
N
C
C
2
N
N
7
CN30
C
N
C
C
C
N
C
C
CN42
C
N
C
C
4
N
2
Main Chip
EEPROM
PCBCode:
17122000047742
Figure 28. Typical Component Locations (MPC036S4S-1P and MLB024S4S-1P
Recfier, FRD,
IGBT andIPM
Port Descripon Voltage
CN23 Port forDCfan 0-310V/AC
CN24 Port fortestboard 5V/DC
CN29
Port forHi-pressure and low-pressure
switches
CN30 Port forOLP (Compressortop)
CN26
Poweroutput forcondenser (T3),
ambient(T4)and discharge (Tp)
temperaturesensors
5V/DC
CN28 Communicaon port with keyboard
CN15, 3,
13, 10
Poweroutput for EEVs12V/DC
CN38 Poweroutput for4-way valve230V/AC
CN4, 2,
43, 5
Communicaon portswithindoor units
CN11, 12 Port forpower cable(N, L) 230V/AC
CN21 Poweroutput forchassisheater230V/AC
CN8Power output forcompressorheater230V/ AC
CN27
Poweroutput forevaporatoroutlet
(T2B)temperature sensors
5V/DC
UVWPortfor Compressor0-310V/AC
CN12
CN4,2
,43,5
X4 Mul Main PCB
C
N
C
4
N
2
CN38
CN24
UVW
U
V
W
CN27
C
N
C
2
N
7
CN29
C
N
C
C
2
N
N
9
CN28
C
N
C
C
2
N
N
8
CN30
Main Chip
EEPROM
PCBCode: 17122000051368
,
,
CN11
CN10
C
C
C
C
N
N
N
N
C
C
C
C
1
1
1
1
0
0
0
0
CN13
C
C
C
C
N
N
N
N
C
C
C
C
1
1
1
1
3
3
3
3
CN3
C
C
C
C
C
N
N
N
N
N
C
C
C
C
C
3
3
3
3
3
CN15
CN26
C
N
C
C
2
N
N
6
CN23
C
N
C
C
2
N
3
CN8
C
N
C
8
CN21
Figure 29. Typical Component Locations (MPC018S4M-1P)

Lennox MMA048S4 Specifications

General

Brand	Lennox
Model	MMA048S4
Category	Air Conditioner
Language	English