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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
24V
TRANS
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
1
3
4
2
L1
L2
5
6
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
4
3
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
A
P2
B
BRN
BRN 5
6
SEQ
CHASSIS
GROUND
VIO
OPTIONAL IFR/TDR
BRN
TRANS
BRN
VIO
BLK
1
3
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
A
P2
B
BRN
BRN
CHASSIS
GROUND
OPTIONAL IFR/TDR
BRN
TRANS
RED
BLK
SEQ
1
3
4
2
L1
L2
5
6
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
2
1
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
A
P2
B
BRN
BRN 5
6
SEQ
CHASSIS
GROUND
VIO
OPTIONAL IFR/TDR
BRN
TRANS
BRN
VIO
4
3
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