
8
SUB-ZEROP R O 4 8 U S E & C A R E
E L E C T R O N I C C O N T R O L SYSTEM
The electronic control system of the PRO 48
monitors and accurately displays compartment
temperatures within one degree of your pre-set
temperatures. It also monitors the operation of
the unit and lets you know if there is a
problem. The interior control panel located at
the top of the refrigerator door compartment
has key pads to set temperatures and control
functions of the electronic control system.
TEMPERATURECONTROL
Your new PRO 48 was thoroughly inspected
and tested before it was shipped from the
Sub-Zero factory. Temperatures are preset at
3°C in refrigerator compartments and -18°C in
the freezer compartments.
There are three sets of
WARMER
and
COLDER
key pads on the interior control
panel, two for the refrigerator compartments
(upper door and lower drawers) and one for
the freezer compartments. To adjust the
temperature in any of the three compartments,
depress the
WARMER
or
COLDER
key
pad for that compartment. Digital temperatures
for each of the three compartments are
displayed in the exterior temperature display.
Temperature ranges are -20°C to -15°C° in the
freezer sections, 1°C to 7°C in the upper refrig-
erator door section, and 1°C to 3°C in the lower
refrigerator drawers. It is normal for tempera-
tures to fluctuate slightly, depending on
external influences such as an open door, the
degree of humidity and room temperature.
IMPORTANT NOTE:
Always allow 24 hours
for compartments to reach the temperature
you set.
PRO 48 interior control panel
M del ICB648PROG sh wn
Freezer
Temperature Controls Ice Maker
On/Off Power
On/Off Alarm
On/Off Lights
On/Off Refrigerator
Temperature Controls
Upper
Compartment Drawer
Compartment
ICE MAKER ALARM LIGHTPOWERCOLDER WARMER COLDERCOLDER COLDERWARMER WARMER
Be sure to shut off power to the unit at
the circuit breaker during service.
P O W E R O N / O F F
The
POWER
key pad on the control panel
will shut off all electrical power to the unit.
When the power is off, the OFF indicator light
will be visible in the exterior temperature
display. Using the
POWER
key pad means
you do not have to shut off power at the circuit
breaker or unplug the unit. The
POWER
key
pad can be used for extended vacations.
It is possible to shut off power to one compart-
ment of the PRO 48 for an extended period
without affecting operation of the other
compartments.
First, turn the unit off by depressing the
POWER
key pad. Then push and hold the
WARMER
key pad of the compartment you
wish to shut down. Depress the
POWER
key pad to turn the unit back on. The disabled
zone will be indicated with “--“ in the exterior
temperature display. Repeat the process to
resume power to the compartment.