Typical Wiring Diagrams - Intermatic DDT40 Installation And Operation Manual

All switch positions are shown in refrigeration cycle operation, and change position upon initiation of a defrost.
1
8145 Replacement
Mode A - No Label Required
1 2
3
F
L1
THERMOSTAT
COMPRESSOR
OR
LINE DEFROST
SOLENOID VALVE
OR
HEATER
CONTACTOR COIL
L2
DEFAULT (Out of the Box)
4
8047 Replacement–Double Pole Switching
Mode B with 8047 Terminal Block Label Applied
N 1 3 4
L1
SOLENOID
VALVE
DEFROST
OR
HEATER
CONTACTOR
L2
7 8141 Replacement
Mode A with 8141 Terminal Block Label Applied
N 2
1 3 4
THERMOSTAT
L1
COMPRESSOR
OR
FAN
SOLENOID VALVE
DEFROST
OR
HEATER CONTACTOR COIL
L2
10
8245 Replacement
Mode A with 8245 Terminal Block Label Applied
3 1-N 2
F
L1
THERMOSTAT
COMPRESSOR
DEFROST
LINE OR
SOLENOID VALVE
HEATER
OR
CONTACTOR COIL
L2
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DDT40 Adaptive Defrost Control

TYPICAL WIRING DIAGRAMS

2
8041 Replacement
Mode A with 8041 Terminal Block Label Applied
CONTROL TERMINATE
POWER
INPUT
N
4 N
X
L1
TERMINATION
FAN
THERMOSTAT
MOTOR FAN
W/FAN DELAY
L2
5
8045 Replacement
Mode A with 8045 Terminal Block Label Applied
CONTROL
TERMINATE
POWER
INPUT
2 2
8047
F
LABEL
L1
LINE
L2
8
8143 Replacement
Mode B with 8143 Terminal Block Label Applied
CONTROL TERMINATE
POWER
INPUT
X 1
8141
LABEL
L1
TERMINATION
THERMOSTAT
W/FAN DELAY FAN
L2
CONTROL TERMINATE
POWER
INPUT
p
4
8245
Xp
LABEL
FAN PRESSURE
MOTOR
SWITCH
CONTROL TERMINATE
POWER
INPUT
3 2 4 X
1
THERMOSTAT
COMPRESSOR
OR
SOLENOID VALVE
DEFROST
OR
CONTACTOR COIL
HEATER
CONTROL TERMINATE
POWER
INPUT
3 2
1-N 4 X
THERMOSTAT
FAN
MOTOR
COMPRESSOR
DEFROST OR
SOLENOID VALVE
HEATER
OR
CONTACTOR COIL
CONTROL
TERMINATE
POWER INPUT
3 4 2
N X
HOT
CONNECT ACROSS
GAS
VALVE
COMPRESSOR
THERMOSTAT
7
3
8247 Replacement–Double Pole Switching
Mode B with 8247 Terminal Block Label Applied
N 3
1
8041
LABEL
L1
SOLENOID
VALVE
DEFROST
OR
HEATER
CONTACTOR
L2
6
120V Fan & Defrost Heater; 240V Compressor
Mode A - No Label Required
F 3
1
8045
LABEL
L1
DEFROST
FAN
HEATER
N
L2
COMPRESSOR
OR
SOLENOID VALVE
OR
CONTACTOR COIL
9 8143 Replacement–Double Pole Switching
Mode B with 8143 Terminal Block Label Applied
1 N 3
8143
LABEL
L1
TERMINATION
THERMOSTAT SOLENOID
VALVE
W/FAN DELAY DEFROST
OR
HEATER
CONTACTOR
L2
p
2 4
Xp
8247
LABEL
PRESSURE
SWITCH
CONTROL TERMINATE
POWER
INPUT
2 4
N X
THERMOSTAT
TERMINATION
THERMOSTAT
W/FAN
DELAY
CONTROL
TERMINATE
POWER INPUT
4 2 X
8143
LABEL
TERMINATION
THERMOSTAT