3.2 PCB Layout
3.2.1 Interface
Indoor unit:
Model:
DEV24H2R18, DEV36H2R18, DEV48H2R18, DEV60H2R18
Mainboard
No.
Printing
Interface
No.
Printing
Interface
1
AC-N
（
X2
）
Neutral wire input
8
X9(G_SCAN)
Indoor motor check
2
AC-L
（
X1
）
Live wire input
9
X14(OFAN-H-OUT)
AC motor high speed
output
3
CN3
Wired control
communication
interface
10
X11(OFAN-H-IN)
AC motor high speed input
4
CN1
DC motor output
11
X8(OFAN-L-IN)
AC motor low speed input
5
X7
Transformer Neutral wire
input
12
X6(OFAN-L-OUT)
AC motor low speed output
6
X13
Transformer Live wire
input
13
X3(C)
Transformer Neutral wire
output
7
X10(O_SCAN)
4-Way check
14
X4(R)
Transformer Live wire
output
SERVICE MANUAL
17
Summary of Contents for Inverter FLEX24 DEV24H2R18
Page 9: ...6 SERVICE MANUAL 2 Control 2 1 Operation Mode 2 1 1 Cooling Mode ...
Page 10: ...2 1 2 Heating Mode SERVICE MANUAL 7 ...
Page 19: ...Model DEV48H2R18 DEV60H2R18 16 SERVICE MANUAL ...
Page 27: ...SEV2040H2R18 SEV4060H2R18 24 SERVICE MANUAL ...
