Lennox MMA018SM4 Service Manual page 72

Table of Contents

Advertisement

Inverter r Outdoor r PCB
18K/24K (Gas cooler) Alt.
Port
Descrip on
CN23
Port for test board
CN414
Port for DC fan
Power output for condenser (T3),
CN17
ambient (T4) and discharge (Tp)
temperature sensors
CN18
Power output for EEV
CN19
Power output for chassis heater
CN5
Power output for AC fan
Power output for compressor
CN16
heater
CN60
Power output for 4-way valve
CN3
Port for power cable (E,N,L,S)
CN27
Port for Compressor
FUSE
Rec fier
Figure 25. Typical Component Locations (MPC018S4S-1P and MPC024S4S-1P)
Voltage
5V/DC
0-310V/AC
5V/DC
12V/DC
230V/AC
230V/AC
230V/AC
230V/AC
0-310V/AC
N
N
L
L
S
S
- L
L
N N N
N
+
+
72
PCB Code: 17122000048064
CN23
CN17
CN19
C C 4
CN
CN414
N N 14
CN18
CN
C C 1
C
18
CN5
Rec fier, FRD,
IGBT and IPM
CN
CN27
C 27
N
IPM for
DC Fan
C
F
U
U
V
V
W W W W
W
P
P
W
W
W
W
W
W
W
W
W
W
V
V
V
V
V
V
V
V
U
U
N
N
CN16
CN60
CN3
P
N
IPM

Hide quick links:

Advertisement

Table of Contents
loading

This manual is also suitable for:

Mma024sm4Mma036s4Mma048s4Mma060s4

Table of Contents