46
HIGH VOLTAGE!
DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS
UNIT. MULTIPLE POWER SOURCES MAY BE PRESENT. FAILURE TO
DO SO MAY CAUSE PROPERTY DAMAGE, PERSONAL INJURY OR DEATH.
WIRING DIAGRAMS
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
DCH036/DCH048*** [208-230V/3/60] D***
F
C
BL/PK BLUE WITH PINK STRIP
PK PINK
YL/PK YELLOW WITH PINK STR IP
WI
RE CODE
OF OVER CURRENT PROTECTION
LINE VOLTAGE
OPTIONAL HIGH VOLTAGE
LOW VOLTAGE
RD RED
FA
CTORY WIRING
LOW VOLTAGE
BL BLUE
BK BLA CK
N
OTES:
1. REPLA CEMENT WIRE MUST BE SAME SIZE AND
TYPE IN SULATION AS ORIGINAL (AT LEAST 105°C)
USE CO PPER CONDUCT OR ONLY .
2. USE COPPER CONDUCT ORS ONLY
++ USE N.E.C. CLASS 2 WIRE
3. ECONOMIZER PLUG LOCATED IN THE RETURN AIR
COMPARTMENT. REMOVE MALE PL UG AND ATTACH
FEMALE PL UG TO THE ECONOMIZER ACCESSORY.
4. FOR 208 VOLT T RANSFORMER OPERATION MOVE
BLACK WIRE FROM TERMINAL 3 TO TERMINAL 2 ON
TRANSFORMER.
5. REMOVE JUMPER IF SMOKE DETECTOR OR EMERGENCY
SHUTDOWN DEVICE IS INSTALLED.
6. CRANKCASE HEATER AND CRANKCASE HEATER
SWITCH FACTORY EQUIPPED WHEN REQUIRED.
7. TO CHANGE EVAP MOTOR SPEED MOVE INTERCHANGE
THE RED WIRE ON T2 OF THE BL OWER CONTACTOR WITH
EITHER THE BLUE OR BK WIRE ON TB. SEE T ABLE 2.
8. FOR ALTERNATE M OTOR WIRING SEE DIAGRAM 1.
OR ORANGE
SEE UNIT RATING PLATE FOR TYPE AND SIZE
YL YELLOW
GR GREEN
WH WHITE
208-240/3 /60
BR BROWN
C
OMPONENT LEGE ND
FIELD WIRING
HIGH VOLTAGE
PU PURPLE
FIELD SPLI CE
SWITCH (TEMP)
OPTIONAL LOW VOLTAGE
4
5
6
HEATER
PLF
CFS
LDS
RSS
BPSW
3
24V
TR
1
BCC/BLS
HPS
3
24V
TR
1
LPS
BI1
BI2
BI3
BI5
BI6
BI7
BI8
AI1
AI2
AI4
AI5
AI6
AI7
AI8
AGND
OAT
DAT
4
3
1
2
COM1
RL1
RL2
COM2
COM3-8
AI3
RL3
RL4
RL5
CCR1
RL6
RL7
RL8
24VAC
GND
ECON
PLF
SMK/EMG
AO1
AO2
AO3
AO4
DDC
L2
T1
COMP
T2
SUPPLY VOLT AGE
CM
L1
CC
T3
208-240/3 /60
CC
CC
RCCF
BI4
2 2
CH
SEE NO
TE 6
208/240 /3/60
208/240/3/6 0
CHS
SWITCH (PRESS.)
OVERCURRENT
PROT. DEVICE
TERMINAL
PLUG CONNECTION
FIELD GROUND
IGNITER
JUNCTION
SCHEMATI C SYMBOL
SEE NOTE 5
+
-
+
-
HGRH
EXF
ALRM
+
-
0140L05851-A
L3
OARH
CO2
SPC
TEMP
COM
SENSOR
OFFSET
SPCRH
BL
PU
BR
BC
PU
EM
3 SPEED
BC
RD
TB
BK
A
G
N
D
A
O
A
I
A
L
R
M
B
C
B
C
C
B
I
B
L
S
B
P
S
W
C
C
C
C
R
C
F
C
C
F
S
C
H
C
H
S
C
M
C
O
M
C
O
M
P
C
S
D
F
T
E
C
O
N
D
C
G
R
O
U
N
D
F
O
R
A
N
A
L
O
G
S
E
N
S
O
R
S
(
"
A
G
"
O
N
T
B
2
)
4
A
N
A
L
O
G
O
U
T
P
U
T
S
8
A
N
A
L
O
G
I
N
P
U
T
S
A
L
A
R
M
B
L
O
W
E
R
C
O
N
T
A
C
T
O
R
B
L
O
W
E
R
C
O
N
T
A
C
T
O
R
C
O
I
L
8
B
I
N
A
R
Y
I
N
P
U
T
S
B
L
O
W
E
R
L
O
W
S
P
E
E
D
B
L
O
W
E
R
P
R
O
V
I
N
G
S
W
I
T
C
H
C
O
M
P
R
E
S
S
O
R
C
O
N
T
A
C
T
O
R
C
O
M
P
R
E
S
S
O
R
C
O
N
T
A
C
T
O
R
R
E
L
A
Y
C
O
N
D
E
N
S
O
R
F
A
N
C
O
N
T
A
C
T
O
R
C
L
O
G
G
E
D
F
I
L
T
E
R
S
W
I
T
C
H
C
R
A
N
K
C
A
S
E
H
E
A
T
E
R
C
R
A
N
K
C
A
S
E
H
E
A
T
E
R
S
W
I
T
C
H
C
O
N
D
E
N
S
E
R
M
O
T
O
R
C
O
M
M
O
N
(
"
C
"
O
N
T
B
2
)
C
O
M
P
R
E
S
S
O
R
C
O
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1
A
N
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S
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C
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I
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F
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H
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R
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P
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P
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A
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P
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F
P
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R
C
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T
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D
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E
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P
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1
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T
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1
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1
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3
-
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1
-
5
(
D
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C
T
D
R
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V
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N
M
O
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O
N
L
Y
)
T
E
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M
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N
A
L
B
L
O
C
K
(
2
4
V
S
I
G
N
A
L
)
T
R
A
N
S
F
O
R
M
E
R
2
4
V
A
C
T
R
A
N
S
F
O
R
M
E
R
&
S
M
O
K
E
D
E
T
E
C
T
O
R
COMPONENT LEGEND
ALTERNATE
MO TOR
6-W IRES
SE E TAB LE 1
BC
3SPEED
BL
EM
RD
BK
BR
RD
PU
TABLE 1
ALTERNATE MOTOR WIRING
TABLE 2
SPEE D TAPS
COLOR
RD
BK
BL
PU
TER MINA TION
T2 (BC)
TB
TB
PIN 1 (24V TR2)
RD
BL
BK
LOW
MED
HIGH
DIAGRAM1
DFT
RVC
CFC
SEE NOTE 2
SEE NOTE 4
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