Specifications

EVAPORATION
OF
ICE
CUBES
(rop
Mount
& side-By-side
Moders)
Since
ice
cubes have a moisture
vapor
pressure
above them,
the vapor
is
constantly
being
picked
up
in the
dry air stream
and deposited
on
the
evaporator.
This
physical
change
known
as
"sublimation",
is the
changing
of a solid to
a vapor
without
going
through liquid
state. In
a
forced
air treezer
compartment,
this
action will
be readily
noticed
by a customer
who
does
not
use ice cubes
with regularity.
AIR
FLOW. FORCED
AIR
SYSTEMS
Top
Mount Models
The
balance
between the
air flow
into the fresh
food
and Ireezer
compartments
is
an im-
portant
factor in
maintaining
proper
compartment
temperatures
in
a
forced
air
refrigeration
system.
A
baffle is used
to regulate
the
amount of
chilled
air directed
into
the fresh
food
compartment.
lf
a colder treezer
compartment temperature
is
desired,
the
baffle is
adjusted
so that less
air is directed
into the
fresh food
compartment.
This
causes
the
compressor
to
run longer
since the
compressor thermostat
sensing
element is
located
in the fresh
food
compartment.
Cold
air is
drawn through
the fin
and tube
evaporator
and
into
the
fan.
A
portion
of the
air
is
deflected
into the f
resh food
compartment
where
it
absorbs heat
and returns
to the
f in
and
tube
evaporator
through
ports
in the
top
of the fresh
food
compartment
Most
of the
air
moving
through the
fin
and tube
evaporator,
however,
is
blown through
the
freezer
air tun-
nel
and
circulated
throughout
the freezer
compartment
and back
across
the fin
and tube
evaporator
where
it starts
another
cycle.
-r'
-
-l
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3-2