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Idiomas disponibles
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
DEFROST
LINE
SOLENOID VALVE
OR
HEATER
CONTACTOR COIL
L2
DEFAULT (Out of the Box)
4
8141 Replacement
Mode A with 8141 Terminal Block Label Applied
N
2
1
3
THERMOSTAT
L1
COMPRESSOR
FAN
SOLENOID VALVE
DEFROST
HEATER
CONTACTOR COIL
L2
7
8245 Replacement
Mode A with 8245 Terminal Block Label Applied
3
1-N
2
F
4
L1
THERMOSTAT
COMPRESSOR
LINE
DEFROST
OR
SOLENOID VALVE
HEATER
OR
CONTACTOR COIL
L2
REPLACING EXISTING DEFROST TIMERS
The DTAV40E will replace all models of Paragon 8140, 8240 Series or Precision 6040, 6140 Series and all prior Grasslin Defrost Timer models.
TERMINAL IDENTIFICATION:
The standard DTAV40E terminal identification is identical to the Paragon 8145 with the addition of the "F" terminal. Terminal identification labels are provided for the other models to be placed
over the printed numbers on the printed circuit board. From the table above, select the proper label, apply to printed circuit board and wire per the original wiring or the wiring diagrams indicated.
"F" TERMINAL:
The DTAV40E contains a normally closed contact between terminals 1 and F. This terminal may be used to switch the fans off during a defrost rather than terminals 2 and 4. For hot gas defrost
applications, with the mode switch set to position "B", the fans may be connected to terminal "F".
8143 Replacement: When replacing a Paragon 8143, wire the termination thermostat to terminal X of the DTAV40E (with the 8143 label attached), and the adjacent blank terminal. The Paragon
timers are wired to terminal X and the blank terminal. If the termination thermostat is wired to terminal N of the DTAV40E temperature termination will not occur and may result in burnout of the
DTAV40E. See wiring diagrams 5 & 6.
8240 SERIES REPLACEMENT: The DTAV40E may be used to replace the Paragon 8240 series defrost timers with integral pressure termination by the addition of a remote pressure switch wired
to terminals Xp and p of the DTAV40E (with an 8240 series terminal label applied). There must be no external voltage connected to the pressure switch. Set pressure switch cut-in to the same
value as set on the Paragon defrost timer being replaced. Set cut-out 6 to 14 psi below cut-in. See wiring diagrams 2 and 7.
DTAV40E - TYPICAL WIRING DIAGRAMS
2
8247 Replacement–Double Pole Switching
Mode B with 8247 Terminal Block Label Applied
CONTROL
TERMINATE
POWER
INPUT
4
N
X
N
L1
TERMINATION
FAN
THERMOSTAT
SOLENOID
MOTOR
W/FAN DELAY
VALVE
CONTACTOR
L2
5
8143 Replacement
Mode B with 8143 Terminal Block Label Applied
CONTROL
TERMINATE
POWER
INPUT
1
4
X
8141
LABEL
L1
TERMINATION
THERMOSTAT
OR
W/FAN DELAY
FAN
OR
L2
CONTROL
TERMINATE
POWER
INPUT
p
8245
Xp
LABEL
FAN
PRESSURE
MOTOR
SWITCH
Paragon
Precision
Model
TIME INITIATED, REMOTE TEMPERATURE OR PRESSURE TERMINATED
8145
8141
8143
TIME INITIATED, PRESSURE TERMINATED
(Separate Pressure Switch Required - see instructions)
8245
8247
3
1
2
4
Xp
DEFROST
OR
HEATER
CONTROL
POWER
3
4
2
X
N
HOT
CONNECT ACROSS
GAS
VALVE
COMPRESSOR
THERMOSTAT
WIRING LEGENDS
GRASSLIN
S1 Mode
Model
Model
Selector
6145
DTAV40E
A
6141
DTAV40E
A
---
DTAV40E
B
---
DTAV40E
A
---
DTAV40E
B
8145 Rep lacement
3
120V Fan & Defrost Heater; 240V Compressor
Mode A - No Label Required
F
3
p
8247
LABEL
L1
DEFROST
FAN
HEATER
PRESSURE
N
SWITCH
L2
6
8143 Replacement–Double Pole Switching
Mode B with 8143 Terminal Block Label Applied
TERMINATE
INPUT
1
N
8143
LABEL
L1
TERMINATION
THERMOSTAT
SOLENOID
W/FAN DELAY
VALVE
DEFROST
OR
HEATER
CONTACTOR
L2
Terminal
Typical
Ident.
Wiring
Label
Diagram
F 3 1 2 4 N X
1, 3
None
4
N 1 3 2 4 X
8141
5, 6
1 N 3 4 2 X
8143
F 3 1-N 2 4 Xp p
7
8245
2
N 1 3 2 4 Xp p
8247
CONTROL
TERMINATE
POWER
INPUT
2
1
4
N
X
THERMOSTAT
TERMINATION
THERMOSTAT
W/FAN
DELAY
COMPRESSOR
OR
SOLENOID VALVE
OR
CONTACTOR COIL
CONTROL
TERMINATE
POWER
INPUT
3
4
2
X
8143
LABEL
TERMINATION
THERMOSTAT
Terminal Layout
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