Indoor Unit - Daikin FTX50GV1B Service Manual

SiBE041029EC

1. Indoor Unit

Control PCB
(PCB1)
1) S1
2) S6
3) S8
4) S21
5) S26
6) S28
7) S32
8) S35
9) H1, H2, H3
10)FG
11)JA
12)JB
13)JC
14)LED A
15)FU1 (Fu), FU3
16)V1
Caution Replace the PCB if you accidentally cut the jumpers other than JA, JB, and JC.
Jumpers are necessary for electronic circuit. Improper operation may occur if you cut any of
them.
Note: The symbols in the parenthesis are the names on the appropriate wiring diagram.
Printed Circuit Board Connector Wiring Diagram
Connector for DC fan motor
Connector for swing motor (horizontal blades)
Connector for swing motor (vertical blades)
Connector for centralized control (HA)
Connector for buzzer PCB
Connector for signal receiver PCB
Indoor heat exchanger thermistor
Connector for INTELLIGENT EYE sensor PCB
Connector for terminal board (indoor - outdoor transmission)
Connector for terminal board (frame ground)
Address setting jumper
∗ Refer to page 108 for detail.
Fan speed setting when compressor stops for thermostat OFF
∗ Refer to page 110 for detail.
Power failure recovery function (auto-restart)
∗ Refer to page 110 for detail.
LED for service monitor (green)
Fuse (3.15 A, 250 V)
Varistor
H1
S21
S35
LED A JA
FU3
JB JC
S28
Indoor Unit
H2
H3
FG
S1
S32
V1
FU1
S6
S8
S26
2P099167-1
2P290430-1
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