34
HIGH VOL
T
A
G
E
!
DIS
C
ONNECT
AL
L
POW
E
R BEF
O
RE
SERVICI
NG OR IN
S
T
A
L
L
IN
G
T
H
IS
UNIT
.
M
U
L
T
IPL
E
PO
W
E
R SO
UR
CES M
A
Y BE P
R
ESEN
T
.
F
A
IL
URE
T
O
DO SO
M
A
Y CAUS
E PROP
ERT
Y
DAM
AG
E,
PERSONAL
I
N
J
U
R
Y
OR DE
A
T
H
.
WIRING DIAGRAMS
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
DCH036* (4B/7B)/DCH048* (4B/7B)/DCH060* (4B/7B)/DCH072* (4B/7B)
THREE PHASE 460/575V/3/60HZ BELT DRIVE
BC
BL
OR
BK
RD
RD
OR
RD
C
3
BL
1
24V
TR
460
575
BL
GR
BK
BK
RD
OR
BR
RD
RD
BL
BL
BL
PU
CMR
6
GND
/
COM
RD
R
DFT
RD
4
6
0
-
5
7
5
L3
EM
C
T3
RD
PU
5
BK
BL
O
PLF 2
NC
NO
BK
UP
RD
S
GR
BK
2
C
M
WH
C
E
8
L2
W1
CM
K1
BK
A
BR
6
0
YL
RD
SPEED
RD
4
RVC
/
R
BK
PU
L1
G
PU
5
7
6
BL
3
K1
BK
BL
M1
T
Y1
T
XFMR-C
W2
C
EBTDR
3
XFMR-R
RCCF
YL
BR
R
G
9
M2
T2
BK
T1
3
BL
BR
4
1
O
SEE
NOTE 2
GR
2
RD
BR
BL
T
1
F
RD
H
GR
BR
RD
TB1
OR
PU
YL
BL
GR
WH
Y2
PU
YL
PLF 1
WH
BL/PK
BK
BR
PU
WH
BL
OR
OR
PU
GR
RD
BK
HPS
BL/PK
T1
T3
T2
COMP
RD
BK
YL
LPS
YL/PK
YL/PK
PU
CH
GR
RD
RD
RD
BL
BL
CHR
CHS
BK
BK
R
EBTDR
BC
HVDR
CMR
3
1
2
P
L
F
1
T2
460-575/3/60
460V - 575V
SEE UNIT RATING PLATE FOR TYPE AND SIZE
5
OF OVER CURRENT PROTECTION
4
TR
BLOWER CONTACTOR
CONTACTOR
COMPRESSOR CONTACTOR RELAY
CRANKCASE HEATER
CRANKCASE HEATER SWITCH
CRANKCASE HEATER RELAY
CONDENSER MOTOR
CONDENSER MOTOR RELAY
COMPRESSOR
DEFROST CONTROL
DEFROST THERMOSTAT
ECONOMIZER
ELECTRONIC BLOWER TIME DELAY
EVAPORATOR MOTOR RELAY
EVAPORATOR MOTOR
EQUPIMENT GROUND
HIGH PRESSURE SWITCH
HIGH VOLTAGE DEFROST RELAY
LOW PRESSURE SWITCH
LOW VOLTAGE DEFROST RELAY
FEMALE PLUG / CONNECTOR
REVERSING VAVLE COIL
RUN CAPACITOR FOR
CONDENSER FAN
TERMINAL BLOCK (24V SIGNAL)
TRANSFORMER
L3
T3
C
PLF2
24V
C
1
C
3
BC
C
CCR
CH
CHS
CHR
CM
CMR
COMP
DC
DFT
ECON
EBTD
EMR
EM
GND
HPS
HVDR
LPS
LVDR
PLF
RVC
RCCF
TB1
TR
HVDR
6
T1
C
L1
EM
CHR
CM
COMPONENT LEGEND
R
F
6
1
DF2
P
L
F
1
G
T2
NOTES:
1. REPLACEMENT WIRE MUST BE SAME SIZE AND
TYPE INSULATION AS ORIGINAL (AT LEAST 105 C)
USE COPPER CONDUCTOR ONLY.
2. USE COPPER CONDUCTORS ONLY
++
USE N.E.C. CLASS 2 WIRE
3. ECONOMIZER PLUG LOCATED IN THE RETURN AIR
COMPARTMENT. REMOVE MALE PLUG AND ATTACH
FEMALE PLUG TO THE ECONOMIZER ACCESSORY.
4. CRANKCASE HEATER, CRANKCASE HEATER RELAY,
AND CRANKCASE HEATER SWITCH FACTORY
EQUIPPED WHEN REQUIRED.
COMP
DF1
5
T2
T3
4
L2
C
EBTDR
RCCF
C
SEE NOTE 3
EBTDR
HPS
3
BC
BC
LOW VOLTAGE
LINE VOLTAGE
FIELD WIRING
LOW VOLTAGE
OPTIONAL
HIGH VOLTAGE
FACTORY WIRING
HIGH VOLTAGE
BL
RD
OR
Y1
YL
W
BL
G
R
OR
W
NO ECONOMIZER
G
OR
YL
RD
Y2
Y1
PK
WH
W
R
RD
WH
GR
C
O
R
YL
O
GR
Y1
G
WH
WITH ECONOMIZER OPTION
C
GR
THERMOSTAT
FIELD WIRING
BL
C
O
2 STAGE COOLING
TB1
G
R
W
Y
C
O
TB1
TB1
Y
W
O
R
G
C
W
Y2
G
R
C
O
Y1
STAT
STAT
STAT
BL/PK BLUE WITH PINK STRIP
YL/PK YELLOW WITH PINK STRIP
GR GREEN
WIRE CODE
BL BLUE
PU PURPLE
PK PINK
WH WHITE
BK BLACK
RD RED
BR BROWN
OR ORANGE
YL YELLOW
SUPPLY VOLTAGE
CH
SEE NOTE 4
CHR
CHS
R
DC
DFT
Y
C
R
RVC
LPS
CNT
R-PS1
PS2
R
W
O
R-DFT
DFT
O-RV C-RV DF1
DF2
R
SEE
NOTE 4
R
YL
YL
RD
OR
BL
BK
RD
OR
YL
BL
1
2
3
C
T2
T3
T1
BK
SEE NOTE 4
SEE NOTE 4
RD
RD
BL
BL
RD
RD
OPTIONAL
LOW VOLTAGE
BC
T1
T3
T1
PS2
C
C
R
C
Y
Y
R-
P
S
1
R-
DF
T
DF
T
0
CNT
CCR
HVDR
LVDR
W
C-RV
0-RV
0
DF
2
DF
1
R
DC
BR
PK
L1
L2
L3
5
4
2
1
8
7
9
9 8 7
R
O
G
C
Y1
W1
W2
S2
S1
R
O
G
C
Y1
W1
THER+
W2
Y2
S2
S1
S1
S2
RD
BR
RD
BR
BR
PK
Y2
Y2
460-575/3/60 0140L02906-B
EQUIPMENT
GROUND
FIELD GROUND
FIELD SPLICE
SWITCH (TEMP)
IGNITER
SWITCH (PRESS.)
OVERCURRENT
PROT. DEVICE
JUNCTION
TERMINAL
INTERNAL TO
INTEGRATED
CONTROL
PLUG
CONNECTION
++
++
REPLACE JUMPER WITH
SMOKE / FIRE DETECTOR
