Sub-Zero BI-36R Use & Care Manual page 25

Built-In Use & Care
Operations
DOOR AND DRAWER CLOSING
Over-and-under models: The refrigerator door has a door
closing cam to help in closing the door. With the door
opened to about 110°, the cam will hold in the open
position if the door is stopped. As you close the door, the
cam will take over at about 15° to help close the door.
The freezer drawer has a self-closing mechanism. The
incline, built into roller assemblies on the drawer, uses
gravity to assist in closing the drawer.
If the built-in unit is positioned in a corner, you may want
to install an optional door stop, which limits door opening
to 90°. This door stop is provided with each built-in model
and is shipped in a plastic bag in the grille area.
All refrigerator, all freezer and side-by-side models: The
refrigerator and freezer doors have spring-loaded closure
mechanisms. As the doors are closed, the door closure
engages to help close and seal the doors. A 90° door stop
is provided with each unit and is shipped in a plastic bag
in the grille area.
CONDENSER FAN MOTOR
All built-in models have a fan behind the grille to cool the
compressor area. This fan runs with either compressor.
AUTOMATIC DEFROST
Sub-Zero built-in models are equipped with an automatic
defrost system. The refrigerator section will defrost during
each off cycle of the refrigerator compressor. The freezer
section is controlled by an energy-saving adaptive defrost
system, which defrosts as needed.
Sounds
You may hear some noises in the normal operation of the
built-in unit. Surrounding acoustics like walls, floors and
cabinets may affect the sound of your unit. For example, a
gurgling or running water sound is probably refrigerant
circulating through the tubing. For external dispenser
models, the ice dispenser motor inside the refrigerator
door closes five seconds after either the ICE or WATER
key pad is released.
During the ice maker cycle you may hear the sound of ice
dropping into the container or the water valve operating
while refilling the ice maker with water. During the freezer
defrost you may hear crackling or sizzling as the heat from
the defrost element clears the frost from the freezer coil
and water runs into the water pan.
While the compressors are in operation, you may hear a
slight hum. During the start-up and shutdown of the
compressor, you may feel vibration for a few seconds.
Some of these noises may be enhanced when the doors
of the unit are open.
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