Carrier FC4BNF - Page 41

Fig. 33—FF1A/FF1B/FF1C Typical Unit Wiring Label
A91140
LS1
COMPONENT ARRANGEMENT
FR
2 4 5
1 3 6
3 2
1 4
L1
L2
SEQ
LS1 LS2
HTR1 HTR2
WHEN EQUIPPED
WHEN EQUIPPED
CHASSIS
GROUND
DISCONNECT
BLK
COM
208
BLU
230
RED
24VTRANS
UNIT WIRED FOR 230V OPERATION USING
BLACK AND RED TRANSFORMER PRIMARY
LEADS. FOR 208V OPERATION, USE BLACK
AND BLUE TRANSFORMER PRIMARY LEADS.

UNUSED TRANSFORMER LEADS MUST BE TAPED
AND LOOPED.

IF ANY OF THE ORIGINAL WIRE, AS
SUPPLIED, MUST BE REPLACED, USE THE
SAME OR EQUIVALENT WIRE.

FIELD WIRING, USE COPPER CONDUCTORS,
ONLY.

FAN RELAY #4 IS A DEAD TERMINAL FOR
UNUSED MOTOR LEAD STORAGE. TO CHANGE
MOTOR SPEEDS, EXCHANGE THE BLACK AND
RED MOTOR LEADS ON THE FAN RELAY.
1.




2.


3.



4.


5.
MOTOR SPEED SELECTION
HI = BLACK LOW = RED COMMON = VIO
FIELD WIRE
HEAT PKG.
2 KW
3 KW
5 KW
7.5 KW
11 KW
0 (COOLING)
SIZE
TEMP.
RATING
14
12
10
8
6
14
90°C
90°C
90°C
90°C
90°C
90°C
NOTES
316596 - 401 REV. B
BLK
SEQ
13
42
L1
L2
56
FR
C
G
W
R
IFR/TD
R
G
C
W
SCHEMATIC DIAGRAM FOR 2, 3, & 5 KW HEATERS
BLK
IFR (TDR OPTIONAL) MOTOR
BLK BRN
CAP
BRN
RED
43
BLK
BLK
HTR
LS
YEL
VIO
BLK
BLK
RED BLU
TRANS
DISCONNECT
SEE RATING PLATE
FOR VOLTS & HZ
FIELD
POWER
SUPPLY
CHASSIS
GROUND
RED
VIO
ORN
BRN
BRN
CHASSIS
GROUND
RED
ORN
T
AP2
B
BRN
BRN
56
SEQ
CHASSIS
GROUND
VIO
OPTIONAL IFR/TDR
BRN
TRANS
BRN
VIO
BLK
13
4
2
L1
L2
FR
C
G
R
IFR/TD
R
G
C
SCHEMATIC DIAGRAM FOR COOLING CONTROL
BLK
IFR (TDR OPTIONAL) MOTOR
BLK BRN
CAP
BRN
RED
VIO
BLK
RED BLU
TRANS
DISCONNECT
SEE RATING PLATE
FOR VOLTS & HZ
FIELD
POWER
SUPPLY
CHASSIS
GROUND
RED
ORN
BRN BRN
CHASSIS
GROUND
RED
ORN
T
AP2
B
BRN
BRN
CHASSIS
GROUND
OPTIONAL IFR/TDR
BRN
TRANS
RED
BLK
SEQ
13
42
L1
L2
56
FR
C
G
W
R
IFR/TD
R
G
C
W
SCHEMATIC DIAGRAM FOR 7.5 & 11 KW HEATERS
BLK
IFR (TDR OPTIONAL) MOTOR
BLK BRN
CAP
BRN
RED
21
BLK
BLK
HTR2
LS2
YEL
VIO
BLK
RED BLU
TRANS
DISCONNECT
SEE RATING PLATE
FOR VOLTS & HZ
FIELD
POWER
SUPPLY
CHASSIS
GROUND
RED
VIO
ORN
BRN
BRN
CHASSIS
GROUND
RED
ORN
T
AP2
B
BRN
BRN
56
SEQ
CHASSIS
GROUND
VIO
OPTIONAL IFR/TDR
BRN
TRANS
BRN
VIO
43
SEQ
SEQ
BLK
HTR1
YEL
MARKED TERMINAL
UNMARKED TERMINAL
LIMIT SWITCH
FAN RELAY
INDOOR FAN RELAY
INDOOR FAN RELAY/TIME DELAY
SEQUENCER
CAPACITOR
HEATER
TRANSFORMER
FIELD POWER WIRING
OPTIONAL WIRING
FUSE
CHASSIS GROUND
LEGEND
LS
FR
IFR
IFR/TD
SEQ
CAP
HTR
TRANS
SEQ
BLK
BLK
41