7
TempTech
‐
2000
Electronic
Temperature
Control
Description
and
Functions
The
T
‐
1000
Electronic
Temperature
Control
is
a
digital
microprocessor
based
temperature
control,
indication,
and
alarm
system.
It
continuously
monitors
the
temperature
of
the
refrigerator/freezer
through
its
sensor
assembly.
When
the
temperature
warms
to
the
point
where
it
reaches
the
upper
temperature
limit,
the
controller
sends
a
signal
to
turn
on
the
compressor,
which
cools
the
unit.
The
snowflake
icon
will
illuminate
on
the
display.
The
compressor
is
kept
running
until
the
temperature
reaches
the
cold
setting.
When
this
lower
temperature
set
point
is
reached
the
controller
turns
off
the
compressor
and
the
snowflake
icon
extinguishes.
The
refrigerator/freezer
warms
over
time
and
the
process
continues.
The
T
‐
1000
also
provides
the
following
functions:
Red
LED
for
visual
indication
of
an
alarm
condition
Beeper
for
audible
indication
of
an
alarm
condition
A
preprogrammed
5
minute
delay
from
the
time
a
setpoint
is
attained
until
an
alarm
condition
is
declared.
This
prevents
spurious
alarms
for
things
like
door
openings.
A
choice
of
remote
alarm
contacts,
one
normally
open
and
one
normally
closed
for
connecting
remote
alarms
or
annunciation
systems.
5
Operating
Mode
The
TempTech
‐
2000
normally
displays
the
current
interior
temperature
in
degrees
Celsius.
To
display
the
compressor
off
setpoint,
press
the
SET
button
and
release.
The
display
will
momentarily
display
the
setpoint
and
then
revert
to
the
current
temperature.
The
control
also
records
the
warmest
and
the
coldest
temperatures
seen
by
the
controller
since
the
memory
was
last
reset.
To
access
these
temperatures,
press
the
up
arrow
for
the
warmest
temperature
or
press
the
down
arrow
for
the
coldest
temperature.
To
clear
out
the
memory,
press
the
corresponding
arrow
button.
Immediately
press
and
hold
the
SET
button
until
the
“rSt”
message
is
displayed.
The
corresponding
temperature
memory
is
now
erased.
