Friedrich MRM09Y1J, Service & Parts Manual

Page: 81 / 135

81 PB
COMPONENTS TESTING
Figure 705
9-12k Outdoor Unit Printed Circuit Board Identification
1 2 3 4
5
6
7
8 9 10 11 12 13
NO. Name NO. Name NO. Name
1 Compressor output port 6 Port of power neutral wire 11
2
Port of AC fan motor
Overload port 7 Live wire 12 Port of DC fan motor
3 Temperature sensor port 8 Port of compressor electric heating belt 13 Port of electronic expansion valve
4 Communication wire port 9 Port of compressor electric heating belt / /
5 Earthing wire port 10 Port of AC fan motor / /
GRJW819-A3 V1.2 2013/06/25/12
1
3 2 4 5 6 7
8
9
10
11
12
13
14
1 Compressor interface
2 Compressor overload protector
3
4
Temperature sensor
Electric expansion valve
5 Fan HALL interface
6 Outdoor fan
7
8 4-way valve
9
Communication interface with
indoor unit
Live wire
10 Earthing wire
11 Neutral wire
12 Reactor interface 1
13 PFC capacitor interface
14 Reactor interface 2
Figure 706
18-24k Outdoor Unit Printed Circuit Board Identification