Carrier FA4ANF Service Manual page 26

THIS COMPARTMENT MUST BE CLOSED EXCEPT FOR SERVICING
BLOWER MOTOR
ROTATION
30KW 1PH SCHEMATIC DIAGRAM
DISCONNECT PER NEC
FIELD POWER WIRING
HVTB
GND
L1
LS6 HTR6
YEL
YEL
FU6
HTR5
LS5
YEL
HTR4
LS4
YEL
YEL
CB/FU4
LS3 HTR3
YEL
HTR2
LS2
YEL YEL
CB/FU2
HTR1
LS1
YEL
YEL
ORN
BLU
12 11 10 9 8 7 6
PLUG 1
RED
SEQ2
SEQ3
NOTES:
1. Use copper wire only between disconnect switch and unit.
2. Connect (Y) to (Y), (C) to (C), etc. in pattern shown.
3. Transformer primary leads: BLUE 208V, RED 230V.
4. To be wired in accordandce with NEC and local codes.
5. If any of the original wire, as supplied, must be replaced, use the same or
6. Replace low voltage fuse with no greater than 5 amp fuse.
7. Fuse is wired in series between transformer SEC2 and low voltage "R" circuit.
8. 20KW heater uses one double pole LS on middle top element.
9. 18, 24 and 30KW heaters use double pole limit switches.
10. Largest heaters are shown, smaller heaters will have fewer elements and
components.
11. 1 phase heaters are shown wired for single supply circuit. Multiple
supply circuits may be wired directly to fuse/C.B.'S.
SEE RATING PLATE
FOR VOLTS & HERTZ
(SEE NOTE 1)
BLK L2
BLK BLK
12 11 FU5
SEQ 3
BLK BLK BLK
10 9
BLK
BLK BLK
8 7
CB/FU3
SEQ 2
BLK BLK
6 5
BLK BLK
BLK
4 3
CB/FU1
SEQ 1
BLK
2 1
BLU
BLK
SEQ1
VIO
5 4 3 2 1
GRY
PLUG 2
7 6 5 4 3 2 1
YEL ORN GRN
BLK RED BRN VIO
equivalent type wire.
Fig. 18—FK4B Wiring Diagram
SCHEMATIC DIAGRAM
FIELD POWER WIRING
YEL
FOR VOLTS & HERTZ
9
COOLING CONTROL WIRING
COOLING CONTROL ONLY
AUX HEAT RANGE
VIO
AC/HP SIZE
BLU
TYPE
A–C HP–COMFORT HP–EFF
ORN
AC/HP CFM TRIM
LO
BLK
MED
AC/HP DELAY ON/OFF
0/30 30/30 30/30
GRY
RED
7
RECP 2
BRN
SEC2
RED
TRAN
SEC1
BLK T1
12 9
M1
COMMON
YEL 8
11
RED
M2
BLU 10 7
RECP 1
BLU T2
BLK
RED T3
(SEE NOTE 3)
YEL
5 4 3 2 1
PLUG 3
YEL
BRN
16 15 14
PLUG 4
8 7
BLK
BLK
MARKED TERMINAL
UNMARKED TERMINAL
FIELD POWER WIRING
PLUG AND RECEPTACLE
PCB BREAKOFF JUMPER
AUX AUXILIARY
PRINTED CIRCUIT BOARD
PCB
HPTB HEAT PUMP TERM BRD
LVTB LOW VOLT TERM BRD
SEQ SEQUENCER
HTR HEATER
HVTB HIGH VOLTAGE TERMINAL BOX
HUM HUMIDIFIER
26
CAUTION:
NOT SUITABLE FOR USE ON SYSTEMS
EXCEEDING 150V TO GROUND
ATTENTION:
NE CONVIENT PAS AUX INSTALLATIONS
DE PLUS DE 150 V A LA TERRE
DISCONNECT PER NEC
GND
SEE RATING PLATE
BLK
PLUG
(SEE NOTE 1)
7
F
L
R
24VAC
C
O
HI Y1
LVTB
0/0 G
E
JW2
W 2
1 JW1
W 3
AUX1 HUM1
6 3
5 2
R L O W
4 1
AUX2 HUM2
INDOOR THERMOSTAT
PCB
GRN/YEL
RECP 3
VIO ORN
ICM
RED RED
13 12 11 10 9
6 5 4 3 2 1
RECP 4
BLU ORN BRN
GRY
VIO
- LEGEND -
LS LIMIT SWITCH
ICM FAN MOTOR
TRAN TRANSFORMER
GND EQUIPMENT GROUND
FU FUSE
RECP RECEPTACLE
CB CIRCUIT BREAKER
F LOW VOLTAGE FUSE
320486 - 301 REV. C
Y
E
Y
1
Y
0
W
2
O
L
R
HPTB
Y Y E Y
2 0 1
A94078