
Integrated Use & Care 9
subzero.com
Electronic Control System
T
he sophisticated electronic control system of your
integrated unit provides you with the best control of your
refrigerated foods. By maintaining recommended refrigera-
tor and freezer temperatures, you can keep food safe and
retain the best quality possible.
A microprocessor accurately controls the temperature of
the cooling zones. It samples the temperature every
second and makes adjustments to maintain the tempera-
ture you have indicated.
The electronic control panel is located on the top of the
tall units and in the top drawer of the base units. All of the
essential controls and information are displayed in this
easy-to-reach-and-see panel. Refer to the illustrations
below for location of the electronic control panel. Note
that for single zone units and units that cannot support an
ice maker, the electronic control panel will be slightly
different.
LCD DISPLAY
The liquid crystal display (LCD) located on the electronic
control panel shows the actual temperature of different
zones in your unit.
If there is a temperature or ice maker problem, you’ll be
alerted by a flashing SERVICE indicator light in the LCD
display.
TEMPERATURE CONTROL
Integrated units are factory preset to maintain refrigerator
zones at 38°F (3°C) and freezer zones at 0°F (-18°C). The
temperature range for refrigerator zones is 34°F (1°C) to
45°F (7°C) and the temperature range for freezer zones is
-5°F (-21°C) to +5°F (-15°C).
For combination units, there are two sets of WARMER and
COLDER key pads on the electronic control panel. One is
for the upper refrigerator zone and the other for the lower
freezer drawers. Models 700TR and 736TR also have two
sets of key pads, one for the upper zone and the other for
the drawers. Single zone refrigerator and freezer units
have only one set of WARMER and COLDER key pads.
The COLDER key pad allows you to decrease the temper-
ature of a selected zone in one-degree increments.
Similar to the COLDER key pad, you can raise the temper-
ature in any zone in one-degree increments by pressing
the WARMER key pad.
IMPORTANT NOTE: Always allow 24 hours for the unit to
reach the temperature you set.
Tall unit control panel. Drawer unit control panel.
C
OL
DER
W
AR
MER
R
EFRI
GERA
TO
R
FR
EEZ
ER
COLDER
W
A
R
M
ER
I
C
E
O
N
/OFF
O
N
/OFF
UN
I
T
ON
/OFF
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