24
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
H
IG
H
V
O
LT
A
G
E!
DI
SC
ONNEC
T
A
LL
PO
W
ER
BE
FO
R
E
SERVIC
ING
OR
IN
ST
A
LL
IN
G
T
H
IS
UNI
T.
M
U
LT
IP
LE
PO
W
ER
S
O
U
R
CES
M
AY
BE
P
R
ESE
NT
.
FA
IL
URE
T
O
D
O
S
O
M
AY
CAU
SE
PR
O
PERTY
DA
M
A
G
E,
PERS
O
NA
L
IN
JU
RY
O
R
D
EA
TH
.
WIRING DIAGRAMS
DTH(36-60)XXX3DXXXX
BK
BK
OR
BR
C
3
BL
1
24V
PK
TR
208
BL
HPS
RD
RD
6
GND
/
RD
DFT
RD
2
0
8
-
2
4
0
L3
T2
T3
SEE UNIT RATING PLATE FOR TYPE AND SIZE
PU
PU
5
BK
BL
PLF 2
5
OF OVER CURRENT PROTECTION
4
CONTACTOR
COMPRESSOR CONTACTOR RELAY
CRANKCASE HEATER
CRANKCASE HEATER SWITCH
CONDENSER MOTOR
COMPRESSOR
DEFROST CONTROL
DEFROST THERMOSTAT
ECONOMIZER
EVAPORATOR MOTOR
EQUIPMENT GROUND
HIGH PRESSURE SWITCH
HIGH VOLTAGE DEFROST RELAY
LOW PRESSURE SWITCH
LOW VOLTAGE DEFROST RELAY
LOW VOLTAGE JUNCTION BOX
FEMALE PLUG / CONNECTOR
REVERSING VALVECOIL
RUN CAPACITOR FOR
CONDENSER FAN
TERMINALBLOCK (24VSIGNAL)
TRANSFORMER
REVERSING VALVE
RD
L3
T3
BK
2
C
C
WH
8
L2
PLF2
CM
BK
C
C
CCR
CH
CHS
CM
COMP
DC
DFT
ECON
EM
GND
HPS
HVDR
LPS
LVDR
LVJB
PLF
RVC
RCCF
TB1
TR
RV
6
0
HVDR
RD
PU
6
T1
4
C
RVC
L1
/
BK
CM
PU
L1
COMPONENT LEGEND
PU
5
7
6
BL
3
BK
208-240/3/60 0140L02908-B
F
YL
PLF 1
DF2
P
L
F
1
C
3
T2
RCCF
BR
COMP
9
DF1
T2
BK
T1
3
BL
BR
4
RD
1
SEE
NOTE 4
GR
T1
T3
L2
2
C
RD
BR
RCC F
1
F
C
YL
OR
BR
LVJB
RD
WH
PU
GR
N
WH
BK
C
TB1
1
4 5
RD
2
YL
EM
G
L
3
GR
TB1
BL
2
240
BK
RD
BL
H
T
O
R
W2
T
Y1
T
G
Y2
A
W1
E
M
S
O
C
R
BL
G
L
N
SEE NOTE 2
EM
EM C
2
4
5
3
1
HPS
NOTES:
1. REPLACEMENT WIRE MUST BESAME SIZE AND
TYPE INSULATION AS ORIGINAL (AT LEAST
105°C) USECOPPER CONDUCTOR ONLY.
2. TO CHANGE EVAPORATOR MOTOR SPEED MOVE
WHITE AND YELLOW LEADS FROM "3" AND"4" TO
"4" AND "5". IFBOTHLEADS ARE ENERGIZED, THE
HIGHER SPEED SETTING IS USED.
3. FOR 208VOLT TRANSFORMER OPERATION MOVE
BLACK WIRES FROM TERMINAL 3 TO TERMINAL 2
ON TRANSFORMER.
4. USE COPPER CONDUCTORS ONLY
++
USE N.E.C. CLASS 2 WIRE
5. ECONOMIZER PLUG LOCATED IN THE RETURN AIR
COMPARTMENT. REMOVE MALE PLUG ANDATTACH
FEMALE PLUG TO ECONOMIZER ACCESSORY.
6. CRANKCASE HEATER AND CRANKCASE HEATER
SWITCHFACTORY EQUIPPED WHEN REQUIRED.
WH
YL
WH
WH
BL
BL
BL
PU
GR
RD
4
5
6
3
1
2
SEE NOTE 5
YL
PU
BR
WH
OR
1
5
OR
OR
LOW VOLTAGE
LINE VOLTAGE
FIELD WIRING
LOW VOLTAGE
FACTORY WIRING
HIGH VOLTAGE
BL
RD
O R
Y1
YL
W
BL
G
R
O R
W
NO ECO NO MIZER
G
OR
YL
RD
Y2
PK
W H
W
R
RD
W H
G R
C
O
R
YL
O
G R
G
W H
W ITH ECONOM IZER O PTIO N
C
G R
THERMOST AT
FIELD W IRIN G
BL
C
O
2 STA GE COO LING
TB 1
G
R
W
Y
C
O
TB 1
TB 1
Y
W
O
R
G
C
W
Y2
G
R
C
O
Y 1
STA T
STA T
STA T
BL/PK
RD
YL
T1
BK
T3
T2
YL
COMP
RD
GR GREEN
WIRE CODE
BL BLUE
PU PURPLE
PK PINK
WH WHITE
BK BLACK
RD RED
BR BROW N
OR ORANGE
YL YELLOW
LPS
BL/PK
YL
BL
208-240/1/60
SUPPLY VOLTAGE
Y1
Y1
RD
BK
2
TR
24V
3
SEE NOTE 3
208-240V
RD
RD
CHS
CH
GR
SEE NOTE 6
BK
BK
BK
CHS
CH
SEE NOTE 6
SEE NOTE 6
YL/PK
YL/PK
CONTROL BOX
PU
DC
DFT
Y
C
R
RVC
CNT
R-PS1
PS2
R
W
O
DFT1
DFT2
O-RV
C-RV
YL
YL
LPS
YL
1
PS2
C
C
R
C
Y
Y
R-
PS
1
R-D
FT
DF
T
0
CNT
CCR
HVDR
LVDR
W
C-RV
0-RV
0
DF
2
DF
1
R
DC
OPTIONA L HIGH
VOLTAGE
8
7
9
7
8
9
R
O
G
C
Y1
W1
W2
Y2
S2
S1
R
O
G
C
Y1
W1
THERMOSTAT
W2
S2
S1
S2
S1
BL
RD
RD
BR
PK
Y 2
Y2
EQUIPMENT GROUND
FIELD GROUND
FIELD SPLICE
SWITCH(TEMP)
IGNITER
SWITCH(PRESS.)
OVERCURRENT
PROT. DEVICE
JUNCTION
TERMINAL
INTERNAL TO
INTEGRATED CONTROL
PLUG CONNECTION
++
++
++
OPTIONA L LOW
VOLTAGE
REPLACE
JUMPER
WITH
SMOKE/FIRE
DETECTOR
SEE NOTE 3
SEE NOTE 2
Summary of Contents for DTC Series
Page 18: ...18 APPENDIX B ELECTRICAL DATA ...
