PTAC Service Manual

Service Manual
Technical Information
56
5.2.2 Silk Screen on Main Board 2
ƔTop View
ƔBottom View
1 7805 voltage-regulator block 6 Three notches of indoor fan 11 Control interface of relay
2 PTC resistance 7 Neutral wire 12 Fuse
3 220V connector of transformer 8 Relay of compressor 13 Interface of main board
4 4-way valve 9 Explosion-proof piezoresistor 14 Output terminal 24V of transformer
5 Outdoor fan 10 Relay of electric heating / /
1
2
3456 78 9 10
11
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