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8
Programming
Mode
Note:
The
TempTech
‐
2000
programming
mode
gives
access
to
several
functions
that
are
not
intended
for
user
adjustment.
The
procedures
below
provide
direction
to
the
functions
that
you
can
adjust.
Please
do
not
attempt
to
change
any
of
the
other
functions
in
the
programming
area
or
your
unit
may
be
damaged
or
become
unstable.
Locking
and
Unlocking
the
Control
The
control
keys
can
be
locked
out
to
prevent
inadvertent
operation.
‐
To
lock
the
control
keys,
simultaneously
press
and
hold
the
up
arrow
and
the
down
arrow.
The
display
will
show
“POF”.
At
this
point
you
can
only
use
keys
to
view
the
SET
temp
and
the
minimum
and
maximum
stored
temperatures.
‐
To
unlock
the
control
keys,
simultaneously
press
and
hold
the
up
arrow
and
the
down
arrow.
The
display
will
show
“Pon”.
The
control
keys
are
now
unlocked
and
you
can
perform
the
programming
functions
below.
Adjusting
the
temperature
control
setpoints:
NOTE:
The
temperature
control
setpoints
are
preset
at
the
factory
to
provide
the
desired
air
and
product
temperatures
inside
of
the
unit
and
require
no
further
adjustment.
Please
contact
the
manufacturer’s
Technical
Service
Department
before
making
any
adjustments
to
determine
if
adjustment
is
necessary
and,
if
so,
to
make
sure
it
is
performed
properly.
‐
To
set
the
compressor
off
setpoint,
press
and
hold
the
SET
key
for
2
seconds.
The
C
or
F
icon
will
flash.
Use
the
up
or
down
keys
to
change
the
value.
Press
Set
again
to
lock
in
the
value.
‐
To
set
the
compressor
on
setpoint,
you
will
need
to
adjust
the
differential,
or
Hysteresis
setting.
This
is
the
number
of
degrees
the
controller
will
allow
temperature
to
drift
up
until
it
restarts
the
compressor.
For
example,
if
the
SET
point
is
3
degrees
Celsius
and
the
Hysteresis
is
set
at
3,
then
the
compressor
will
cycle
from
3
to
6
degrees
Celsius.
To
change
this
value,
“Hy”
will
display
meaning
Hysteresis.
Press
Set
again
and
the
current
value
will
be
displayed.
Use
the
UP
and/or
DOWN
arrow
keys
to
adjust
the
value
and
press
SET
again
to
lock
it
in.
Press
SET
and
UP
to
return
to
Operating
Mode.