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ABSORPTION REFRIGERATOR SYSTEM
In an
absorption refrigerator system,
ammonia is
liquefied
in
the finned
condenser
coil at the
top
rear of the
refrigerator.
The
liquid
ammonia then flows into the
evaporator
(inside
the
freezer
section)
and is
exposed
to a
circulating
flow of
hydro-
gen gas,
which causes the
ammonia
to
evaporate, creating
a
cold condition
in
the freezer.
The
tubing
in
the
evaporator
section is
specifically sloped
to
provide
a
continuous movement
of
liquid
ammonia,
flowing
downward
by gravity through
this
section.
If the
refrigerator
is
operated
when it is not level and the ve-
hicle is not
moving, liquid
ammonia will accumulate in sec-
tions of the
evaporator tubing.
This will slow the circulation
of
hydrogen
and
ammonia
gas,
or in severe
cases,
completely
block
it,
resulting
in a loss of
cooling.
Note!
Any
time the vehicle is
parked
for several hours with
the
refrigerator operating,
the vehicle must
be
levelled to
prevent
this loss of
cooling.
When the vehicle is
moving,
the
levelling
is not
critical,
as
the
rolling
and
pitching
movement of the vehicle will
pass
to either side of
level,
keeping
the
liquid
ammonia from ac-
cumulating
in the
evaporator tubing.
Sodium chromate is used for
corrosion
protection
(less
than
2
weight
% of
the
coolant).
TURNING OFF
THE
REFRIGERATOR
KES
To shut off the
refrigerator
press
and hold the
button for 3 seconds.
All indicator
lights
will
go
out.
If the
refrigerator
will not be in
operation
for a
period
of
weeks,
it should be
emptied,
defrosted,
cleaned and the door
left
ajar.
Use the travel catch to hold in this
position.
The ice
tray
should also be
dried.
STORAGE COMPARTMENTS
FOOD
STORAGE COMPARTMENT
The food
storage compartment
is
completely
closed and
unventilated,
which is necessary to maintain the
required
low
temperature
for food
storage. Consequently,
foods
having
a
strong
odour or those that absorb odours
easily
should be
covered.
Vegetables,
salads etc. should be covered to retain
their
crispness.
12
The
coldest
positions
in the
refrigerator
are under
the
cooling
fins
and
at the bottom of
the
refrigerator.
The warmer areas
are on
the
upper
door
shelves. This
should
be
considered
when
placing
different
types
of food
in
the
refrigerator.
FROZEN FOOD STORAGE COMPARTMENT
Quick
frozen soft fruits and ice cream should be
placed
in
the
coldest
part
of the
compartment,
which is at
the
bottom of
the aluminium liner.
Frozen
vegetables,
may
be
stored in
any
part
of
the
compartment.
This
compartment
is not
designed
for
deep
or
quickfreezing
of
food.
Meat or
fish,
whether raw
or
prepared,
can be
stored
in the frozen food
storage
com-
partment provided
they are
precooled
first in the
refrigerator.
They
can be stored about three times
longer
in the frozen
food
compartment
as
compared
to
the
fresh food
compart-
ment.
To
prevent
food from
drying
out,
keep
it in
covered
dishes.
containers,
plastic bags
or
wrapped
in aluminium foil.
Ice cubes can be made
in
the freezer
compartment.
For
faster
ice
making,
the
tray
should be
placed
in
direct contact
with
the
bottom of
the freezer
compartment.
Ice
making
is
acceler-
ated
if
thetemperature
control is turned to the
coldest
setting.
It is a
good
idea
to
do
this
a few hours before the
anticipated
need
for
ice,
but
be sure
to turn
the thermostat back
to
normal
setting, usually
about
mid-setting
when the ice
is
formed.
Food in
the
lower
compartment may
be frozen
if
the
setting
is
left
on
the coldest
setting.
REMOVING
AND
REPLACING
THE
SHELVES
the screwdriver counterclockwise and then remove
the shelf locks from the wire shelf.
A
WARNING
The sealed
cooling
system must not be
opened.
It contains
corroding
chemicals under
high
pressure.
1.
Remove
the shelf
locks
by inserting
the
tip
of a
flat
2.
Tilt
the shelf to one side at an
angle
while
pulling
forward.
3.
Reposition
the shelf in the desired location. Insert
the ends of the wire shelf on the left-hand side and
slide the shelf into the holes on the
right-hand
side.
A
WARNING
Do not store
explosive
substances in the
refrigerator,
such as
cigarette lighter gas, gasoline,
ether or the like.
4. Slide the
plastic plugs
into the holes of the wall.
5.
Snap
the
shelf locks
onto the wire shelf.
ise;
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