
8
SUB-ZERO PRO 48 USE & CARE
ELECTRONIC CONTROL SYSTEM
The electronic control system of the PRO 48
monitors and accurately displays compart-
ment 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 tempera-
tures and control functions of the electronic
control system.
TEMPERATURE CONTROL
Your new PRO 48 was thoroughly inspected
and tested before it was shipped from the
Sub-Zero factory. Temperatures are preset at
3°Cin 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. Toadjust the
temperature in any of the three compart-
ments, depress the
WARMER
0r
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 and 1°C to 7°C in the
refrigerator sections. It is normal for temper-
atures to fluctuate slightly, depending on
external influences such as an open door,
the degree of humidity and room tempera-
ture.
IMPORTANT NOTE:
Always allow 24 hours
for compartments to reach the temperature
you set.
PRO 48 interior control panel
Model ICB648PROG shown
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.
POWER ON/OFF
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.