PART NO. 537981-03
SEQ
RED
WHT
BLK
WHT
BLU
6
5
4
3
2
1
SEQ
RED
WHT
BLK
WHT
BLU
6
5
4
3
2
1
BLK
SEQ
RED
WHT
WHT
BLU
6
5
4
3
2
1
RED
WHT
BLU
6
5
4
3
2
1
2
1
18 BLU
18 BLU
COM
C
208V
TRANSFORMER
24
240V
14 YEL
C
18 BLU
14 BLK
L
MTR
GND
14 GREEN
G
14 YEL
N
FIGURA 15. Diagrama de cableado típico – Unidad de manejo de aire CBA25UHE con calefacción eléctrica – CT
WIRING DIAGRAM - ELECTRIC HEAT
BLK
BLK
SEQ
YEL
YEL
SEQ
BLK
BLK
BLU
YEL
SEQ
BLU
BLK
BLU
CB
BLK
SEQ
YEL
SEQ
BLK
BLU
BLU
CB
L2
L1
L2
L1
BLK
BLK
SEQ
YEL
YEL
HTR1
SEC L
HTR2
BLU
SEC L
CB OR TB
HTR2
L1
L2
PRI LS
SEQ
BLK
YEL
HTR 1
CB OR TB
HTR 1
4
5
6
18 RED
18 GREEN
1
18 BRN
2
W2 W1
G
O
18 YEL
3
18 WHT
4
18 BLK
TO THERMOSTAT BY OTHERS
5
Página 15
YEL
HTR 3
HTR 2
HTR 4
SEC L
SEC L
SEC L
L2
L1
L2
L1
HTR 4
HTR 3
HTR 2
PRI LS
PRI LS
PRI LS
BLK
YEL
YEL
HTR2
HTR3
SEC L
SEC L
HTR3
HTR2
PRI LS
PRI LS
PRI LS
PRI LS
PRI LS
7.5KW & 10KW
HEATERS USED
5 KW = HTR1
7.5 & 10 KW = HTR1 & HTR2
15 KW = HTR1,HTR2 & HTR3
20 KW = HTR1,HTR2,HTR3 & HTR4
TB = TERMINAL BLOCK
CB = CIRCUIT BREAKER
SEQ = SEQUENCER
HTR1
GND = GROUND LUG
PRI LS= LIMIT SWITCH
PRI LS
SEC L= LIMIT SWITCH
HTR = HEATER ELEMENT
4KW & 5KW
POWER (FACTORY WIRED)
POWER (FIELD WIRED)
CONTROL (FACTORY WIRED)
CONTROL (FIELD WIRED)
CONTROL CIRCUIT WIRING TO
BE 24 VOLT, N.E.C. CLASS 2
THREE POLE SEQUENCER
PLUG PIN
LOCATION
6-PIN CAP
TD = TIME DELAY (OPT.)
**
TR = TRANSFORMER
BR = BLOWER RELAY
MTR = BLOWER MOTOR
CAP = MOTOR CAPACITOR
GND = GROUND
CONNECTION
WIRING DIAGRAM: NO HEAT
WIRE NUTS
BY
OTHERS
1
2
R
DS C
Y1
Y2
6-PIN
GND
PLUG
Cut size: 7" Wide x 9-1/2" Tall
20KW
HTR 1
SEC L
HTR 1
PRI LS
12.5KW & 15KW
HTR1
SEC L
HTR1
TIMING - SEC
ON
OFF
1-20
40-110
20-60
1-30
20-60
1-30
TWO POLE SEQUENCER
TIMING - SEC
ON
OFF
30-90
1-30
30-90
1-30
L1
15 AMP
L2 OR
SUPPLY
NEUT.
VOLTAGE
