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Manuals
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Carrier Manuals
Air Conditioner
FA4ANF
Service manual
Carrier FA4ANF Service Manual page 17
Residential fan coil units
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Contents
Table of Contents
Troubleshooting
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Table of Contents
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FU1
FU3
YEL
YEL
BLU
BLK
VIO
SEQ1
RED
ORG
SEQ2
BRN
YEL
BLK
BLU
COMMON
COMM
R
ON TERMINAL BOARD ABOVE
LS 4 HTR4
BLK
YEL
8
SEQ 2
LS 3 HTR3
BLK
YEL
6
LS 2 HTR2
BLK
YEL
4
SEQ 1
LS 1 HTR1
BLK
YEL
2
3
2
1
6
5
4
9
8
7
12
11
10
PLUG
AC LINE
T1
T2
T3
DUMMY
BLK
BLU
RED
(208V)
(230V)
C
RED
TRAN
BRN
(24V)
COMM
C
Fig. 13—Wiring Schematic
FU4
BLK
7
BLK
5
BLK
3
BLK
1
TERM BOARD
W3
W2
E
L
O
C
5 AMP
FUSE
Y
MAX
C
R
G
RELAY
240 VDC
DUMMY
DUMMY
L2
EAC2
FAN
L1
EAC1
240 VAC
240 VAC
YEL-COMMON
FM
BRN
CAP
BRN
GRN/YEL-GND
17
FU2
BLK
AUX1
AUX2
F4
F3
F2
F1
COMMON
RED-LO
BLU-MED
BLK-HI
A97032
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Unit Identification
Fa4A, Fb4A, Fc4B, Ff1D, Fh4A, and...
Circuit Board Function and Troubleshooting
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Table of Contents
Troubleshooting
SAFETY CONSIDERATIONS
2
PRODUCT OFFERING
4
CIRCUIT BOARD FUNCTION AND TROUBLESHOOTING
6
Troubleshooting PCB
11
ELECTRIC HEATER FUNCTION AND TROUBLESHOOTING
18
Troubleshooting KFA, KFB, KFC, and KFD Series Electric Heaters
20
Troubleshooting PCB
25
Condensed Version of Troubleshooting FK4B Motor and Controls
27
FAN COIL DESCRIPTION AND TROUBLESHOOTING - FK4C, FV4A, 40FKA
28
Troubleshooting PCB
33
Blower Motor and Wheel
40
FD3A SERVICE AND TROUBLESHOOTING
43
FG3A SERVICE AND TROUBLESHOOTING
46
Smart Heat Operation
48
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This manual is also suitable for:
Fb4anb
Fb4anf
Fb4asb
Fb4asf
Fc4bnb
Fc4bnf
...
Show all
Fd3ana
Ff1a
Ff1b
Ff1c
Ff1d
Fg3ana
Fh4anb
Fh4anf
Fk4cnb
Fk4cnf
Fx4anf
Fx4anb
Fv4anf
Fv4anb
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