35
WIRING DIAGRAMS
Wiring is subject to change. Always refer to the wiring diagram on the unit for the most up-to-date wiring.
WARNING
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.
DCG036-048XXXDXXXA*
2. FOR 208 VOLT TRANSFORMER OPERATION
MOVE BLACK WIRE FROM TERMINAL 3 TO
TERMINAL 2 ON TRANSFORMER.
1. REPLACEMENT WIRE MUST BE THE SAME
SIZE AND TYPE OF INSULATION AS ORIGINAL.
(USE COPPER CONDUCTOR ONLY).
AUXILLARY LIMIT SWITCH
FEMALE PLUG/CONNECTOR
INTEGRATED IGNITION CONTROL
LS
4
INSTALLER/SERVICEMAN
STATUS LIGHT
3 BLINKS
6 BLINKS
2 BLINKS
4 BLINKS
5 BLINKS
OFF
ON
1 BLINK
FALSE FLAME SENSED
OUTPUT DELAY
OPEN LIMIT SWITCH
COMPRESSOR
WITHOUT INDUCER ON
PRESSURE SWITCH
OPEN
IGNITION FAILURE
OR
OPEN ROLLOUT SWITCH
OR
OPEN AUX. LIMIT SWITCH
NORMAL OPERATION
NO POWER OR
INTERNAL
CONTROL
EQUIP. STATUS
TO THERMOSTAT
TERMINAL BLOCK
G
R
5
7
9
IIC
Y1
W
Y2
3
6
12
10
8
11
RS
ALS
PS
BAD SWITCH
AUX. LIMIT OPEN
MAIN LIMIT OPEN
BAD SWITCH
3 MIN. COMP.
PRESSURE SWITCH
PRESSURE SWITCH
CHECK
CHECK
GAS PRESSURE
FLAME ROLLOUT
FLAME SENSOR
GAS VALVE
GAS FLOW
CHECK
-
C
GV
C
CM
CONDENSER MOTOR
LS
LIMIT SWITCH
VENT MOTOR RELAY
VENT MOTOR
PRESSURE SWITCH
TERMINAL BLOCK (24V SIGNAL)
ROLLOUT SWITCH
VMR
VM
PS
PLF
TB1
RS
NOTES
CONTACTOR
GAS VALVE
IGNITOR
EQUIPMENT GROUND
FLAME SENSOR
EVAPORATOR MOTOR
FUSE
F
C
GV
FS
GND
IGN
IIC
EM
COMPRESSOR
COMPONENT LEGEND
COMP
ALS
TR
TRANSFORMER
208-240/1/60 0140L02898-A
HPS
LPS
HPS
HIGH PRESSURE SWITCH
HIGH VOLTAGE
FACTORY WIRING
OPTIONAL
HIGH VOLTAGE
LOW VOLTAGE
FIELD WIRING
LINE VOLTAGE
LOW VOLTAGE
BL
RD
Y1
YL
W
BL
G
R
W
NO ECONOMIZER
G
YL
RD
Y1
PK
WH
W
R
RD
WH
GR
C
R
YL
GR
Y1
G
WH
WITH ECONOMIZER OPTION
C
GR
THERMOSTAT
FIELD WIRING
BL
C
2 STAGE COOLING
TB1
G
R
W
Y
C
TB1
TB1
Y
W
R
G
C
W
Y2
G
R
C
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
IIC
FS
TR
FS
F
IGN
2
1
3
3. FOR DIFFERENT THAN FACTORY SPEED TAP.
CHANGE COOLING SPEED AT COOL
TERMINAL. CHANGE HEATING SPEED AT
HEAT TERMINAL ON CONTROL BOARD
4. ACCESSORY ECONOMIZER PLUG ADJACENT
TO BLOWER HOUSING IN RETURN AIR
COMPARTMENT. REMOVE MALE PLUG AND
ATTACH FEMALE PLUG TO ECONOMIZER
ACCESSORY.
USE NEC CLASS 2 WIRE.
5. USE COPPER CONDUCTORS ONLY.
7. SPEED TAP TERMINATIONS SHOWN ON
DIAGRAM ARE REPRESENTATIVE, BUT ACTUAL
FACTORY SETTING MAY BE DIFFERENT BASED
ON HEATING VALUE AND CAPACITY OF UNIT.
6. PURPLE WIRE CONNECTS TO TRANSFORMER
(PIN 1).
9. FOR LOW STAGE OPERATION ONLY, REMOVE
WHITE JUMPER. FOR 2 STAGE OPERATION,
REMOVE JUMPER AND CONNECT W2 TO W1
ON THERMOSTAT.
SEE UNIT RATING PLATE FOR TYPE AND SIZE
OF OVERCURRENT PROTECTION.
BLOWER CAPACITOR
BC
L2
L2
SUPPLY VOLTAGE
208-240/1/60
L1
C T1
EM
C
R
S
H
C
CM
F
C
VM
LI
PCB
HEAT
COOL
FC
PCB
DI
8. TO RUN DIFFERENT SPEED FOR HEATING AND
COOLING, DISCONNECT GEEEN JUMPER FROM
"COOL" TERMINAL AND REPLACE WITH
APPROPRIATE SPEED TAP. THEN PLACE
DISCONNECTED END OF JUMPER ON
"UNUSED" TERMINAL LEFT OPEN BY MOVING
THE SPEED TAP.
RUN CAPACITOR FOR CONDENSER FAN
RCCF
LPS
LOW PRESSURE SWITCH
BK - HIGH SPEED
BL - MED. SPEED
RD - LOW SPEED
3 SPEED MOTOR
3
2
6
7
9
1 4
8
5
S2
S1
SEE
NOTE 5
Y2
Y2
Y2
