Intermatic Grasslin DTAV40E Serie Instrucciones De Instalación Y Funcionamiento página 2

Setting the Time of Day:
For programing instructions refer to additional programing guide
included.
APPLICATION
The DTAV40E Defrost Timer is equivalent in function, terminal identification (with
appropriate terminal block label attached), and wiring to the Paragon 8140 and
Precision 6140 series Defrost Timers. With the addition of a remote pressure
switch, the DTAV40E can replace the Paragon 8240 series pressure terminated
defrost timers.
Defrosts will be initiated by the versatile electronic timer. The electronic timer
has 24 HR/7 day programming with 10 on and 10 off set-point programs, and 3
preset block programs to allow a selection of any combination of days for
different weekday schedules. The LCD shall display time of day in AM/PM or
24 Hour (military time) format. A daylight savings time adjustment button shall
also be provided. The timer will be programmable to the minute and also offer
a manual override for temporary ON or OFF the next scheduled event. The LCD
shall provide load status indication. The timer also includes reserve carryover
(battery backup).
DTAV40E Time Initiated, Remote Temperature,
Pressure or Time Terminated:
Used in electric or hot gas defrost applications where the defrost is terminated
when the coil is frost free, as sensed by a temperature or pressure switch, even
though the defrost programmed termination time has not been reached. The
time termination functions as a fail-safe and will terminate the defrost if the
temperature or pressure switch fails to do so. The temperature or pressure
switch on the refrigeration coil has contacts which close on a temperature or
pressure rise above freezing, indicating that frost and ice have melted from
the coil. Typically a wide differential SPDT temperature switch is used with its
normally closed contacts wired to the fans thereby delaying the fans from
coming on until the coil temperature has dropped back to below freezing. In
most applications, the contacts at terminals 2 and 4 are normally closed with S1
in "A" position and control the fans and refrigeration equipment or
compressor. For hot gas defrost, or for double pole switching, contacts 2 and
4 may be configured as normally open by selecting mode "B". Refer to wiring
diagrams 1 thru 7 for additional detail.
DTAV40E LOAD STATUS
In Refrigeration Mode
"Green" LED ON
"1 & F" Make
"1 & 3" Break
3
F
In Defrost Mode
Arrow on timer points to current time.
"Red" LED ON
"1 & F" Break
"1 & 3" Make
F 3
DTAV40E LOAD STATUS
In Refrigeration Mode
Both LEDs OFF
"1 & F" Make
"1 & 3" Break
3
F
In Defrost Mode
Arrow on timer points to current time.
Both LEDs ON
"1 & F" Break
"1 & 3" Make
3
F
Note: It is necessary to apply power across terminals 1&N
in order to perform electrical test.
2
A
MODE
CONTROL
TERMINATE
POWER
INPUT
"2 & 4" Make
1 2
4 N X
L1 L2/N
CONTROL TERMINATE
POWER INPUT
"2 & 4" Break
1 2
4 N X
L1 L2/N
B
MODE
CONTROL
TERMINATE
POWER
INPUT
"2 & 4" Break
1 2
4 N X
L1 L2/N
CONTROL
TERMINATE
POWER
INPUT
"2 & 4" Make
1 2 4 N
X
L1 L2/N