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98
UNIT WIRING DIAGRAMS
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Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
DBC300XXX(3,4,7)B***AB
DBC300XXX(3,4,7)V***A*
0140L04899 -A
RD
NOTES:
1. REPLACEMENT WIRE MUST BE SAME SIZE AND TYPE OF INSULATION AS ORIGINAL (USE COPPER CONDUCTORS ONLY).
2. THE CONTROL TRANSFORMER HAS MULTIPLE HIGH VOLTAGE TAPS.
ENSURE WIRE CONNECTIONS ARE CORRECT FOR UNIT SUPPLY VOLTAGE RATING
L1
L2
L3
T1
T2
T3
F1
F2
F3
L1
L2
L3
T1
T2
T3
COMP 1
COMP 2
L1
L2
L3
T1
T2
T3
L1
L2
L3
T1
T2
T3
RD
GY
BK
BK
BR
PU
BR
PU
BK
PU
BK
BR
YL
BK
BK
BK
BR
RD
PU
PU
BK
RD
RD
YL
PU
RD
PU
BR
RD
YL
PU
BR
PU
BK
BK
BK
BK
BK
BK
BK
BK
BK
BK
3. 208/230V SUPPLY POWER UNITS ARE FACTORY CONNECTED TO THE CONTROL TRANSFORMER 240V TAP.
MOVE WIRE CONNECTION FROM 240V TAP TO 208V TAP WHEN 208V POWER SUPPLY IS USED.
BR
PU
BK
LINE
VOLTAGE
24V CNTL
VOLTAGE
TR1
CCAS1
CMC 1
CCAS2
CMC 2
FB 1
CC2
CC1
PB
CCH1
CCH2
GY
BK
BK
BR
L1
L2
L3
GR
GR
4. SEE CONTROL DIAGRAM FOR CONTROL TRANSFORMER LOW VOLTAGE CONNECTIONS
5. OPTIONAL; CB1,CB2,BC2 AND ASSOCIATED WIRING IS PRESENT ONLY WITH 2-SPEED EVAPORATOR MOTOR.
4
2,3
CM1
CM2
YL
BK
BR
PU
BK
BR
GR
GR
1
2
3
1
2
3
1
2
3
1
2
3
PU
BK
BR
PU
BK
BR
L1
L2
L3
L1
L2
L3
6. USE COPPER CONDUCTORS ONLY. UNIT TERMINALS ARE NOT DESIGNED FOR OTHER CONDUCTORS.
THE USE OF OTHER TYPE CONDUCTORS MAY CAUSE DAMAGE TO THE UNIT.
GND
RD
BK
BLOWER CONTACTOR
ELECTRONICBLOWER TIME DELAY
RELAY
BC
EBTDR
PLM
OPTIONAL
HIGH VOLTAGE
BLOWER RELAY
COMPRESSORCONTACTOR RELAY
CCR
COMPRESSORCONTACTOR
CONDENSERMOTOR
COMPRESSOR
ECONOMIZER
EVAPORATOR MOTOR
HIGHPRESSURE SWITCH
LOW PRESSURESWITCH
POWER DISTRIBUTION BLOCK
FEMALE PLUG/ CONNECTOR
LOW VOLTAGE TERMINALBLOCK 1
CONTROL TRANSFORMER
(LINEVOLTAGE/24VAC)
CC
CM
COMP
ECON
EM
HPS
LPS
PB
PLF
TB1
TR1
COMPONENT LEGEND
LOW VOLTAGE
LINE VOLTAGE
FIELD WIRING
LOW VOLTAGE
FACTORY WIRING
HIGH VOLTAGE
GR
GREEN
WIRE CODE
BL BLUE
PU
PURPLE
PK
PINK
WH
WHITE
BK
BLACK
RD RED
BR
BROWN
OR
ORANGE
YL YELLOW
GY
GRAY
CIRCUIT BREAKER
CRANKCASEHEATER
BR
CB
CCH
MALE PLUG/ CONNECTOR
LOW VOLTAGE TERMINALBLOCK 3
TB3
CONDENSERMOTOR CONTACTOR
CMC
CC AUX SWITCH
CCAS
CM/CCH/TR1FUSEBLOCK
FB1
EM FUSEBLOCK
FB2
CM/CCH/TR1FUSES
F1, F2, F3
EM FUSES
F4, F5, F6
L2
L3
L1
L2
L3
L1
L1
L2
L3
LINE VOLTAGE
YL
RD
BK
PU
OR
7
7. SEE ACCESSORY KIT LITERATURE FOR OPTIONAL ELEC HEAT AND CONVENIENCE OUTLET WIRING DIAGRAMS.
POWER DIAGRAM
DCC300 ***(3,4,7)
PLM
PLF
PLM
PLF
PU
YL
L1
L2
L3
T1
T2
T3
LAC MC
8
YL
BK
BR
BK
BR
YL
T3 T2 T1
L1
L2
L3
T1
T2
T3
EM
GY
BL
YL
RD
BL
BK
OR
RD
YL
BK
OR
GY
F4
F5
F6
RD
BK
OR
RD
BK
OR
BC1
BC 2
FB 2
YL (11)
BK (1)
BK (2)
BK (3)
YL (13)
YL (12)
GR
5
L1
L2
L3
T1
T2
T3
L1
L2
L3
T1
T2
T3
L1
L2
L3
T1
T2
T3
RD
BK
OR
RD
BK
OR
CONDENSERMOTOR RELAY
CMR
FM
EVAPORATOR FREEZESTAT
MODULE
LACMC
LOW AMBIENT CONDENSERMOTOR
CONTACTOR
LAM
LOW AMBIENTMODULE
LAR
LOW AMBIENT RELAY
LOW AMBIENT TIMER
LAT
8. IF LOW AMBIENT KIT INSTALLED, DISCONNECT CONDENSER MOTOR WIRES (BK,BR,YL) FROM CMC1 (T1,T2,T3)
AND CONNECT TO CORRESPONDING BK,BR,YL WIRES ON LOW AMBIENT HARNESS (INSULATED MALE QUICK CONNECT).
ALSO CONNECT LOW AMBIENT HARNESS WIRES (BK,BR,YL) (INSULATED FEMALE QUICK CONNECT) TO T1,T2,T3 ON CMC1.
BK
GY
BK
BK
BK
BR
RD
RD
PU
PU
CB1
HIGH
SPEED
CB2
LOW
SPEED
BR
Summary of Contents for DBG Series
Page 51: ...51 ACCESSORIES GAS ELECTRIC...
Page 52: ...ACCESSORIES 52 GAS ELECTRIC...
Page 53: ...53 ACCESSORIES...
Page 54: ...ACCESSORIES 54...
Page 95: ...95 DBC COMMERCIAL 15 25 Ton Packaged Air Conditioner Unit WIRING DIAGRAMS...
Page 100: ...100 DBG COMMERCIAL 15 25 Ton Packaged Gas Electric Unit WIRING DIAGRAMS...