Pioneer YH024GHFI18RT2 Technical & Service Manual page 32

8. WIRING DIAGRAM
36K
Main control board
21
20
19
18
NO.
1 Tube electric heater
2 4-way valve
3 Electric heating belt L
4 Electric heating belt N
5 N Out to driver board Nin
6 AC Power Nin
7 Earth
8 AC Power Lin
9 L Out to driver board Lin
10 Electronic expansion valve
Communication signal to thermostat and
11
indoor
1
Description
2 3 4 5
17 16 15
NO.
12 Pressure switch
13 Compressor heating protector
14 Sensor Signal Out Suc. Coil Def. Diss.
15 Pressure sensor
16 Computer socket
17 EE data socket
18 DC motor
19 DC310V from electrolytic capacitor
20 Communication signal to driver board
21 Power to driver board
28
6
14
Description
7
8
9
10
11
12
13