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START-UP OF UNIT
The following procedure should
be
adhered to for initial start-up and continuous operation.
<D
Connect unit to dedicated power supply. Do not put
any
product
in
the unit
at
this time.
® When the power
is
initially applied, the audible alarm
may sound.
Set the BUZZER switch to OFF to silence
the alarm.
@ Set the desired temperature.
Handling
of
the containers
@ Check that the chamber temperature has reached to
the desired temperature.
@
When
you are satisfied that the unit
is
working
correctly, begin slowly placing product into the chamber
to minimize the temperature rise.
Arrange containers not to disturb air circulation
in
the unit. Disturbance
of
air circulation may cause freeze
of
containers or incline
of
temperature.
<D
Air
intake
vent
Avoid the disturbance
of
air circulation
in
the unit
by
containers. Disturbance
of
air circulation may causes
freeze
of
containers or incline
of
temperature.
®
Air
exhaust
vent
Do
not disturb the exhaust air port
by
putting containers
near the exhaust air port. Containers near the exhaust
air port may freeze when the unit runs with
low
temperature (less than
5°C).
Note:
Never store the material of corrosive such
as
acid or
alkaline
of
which container is not sealed
up
completely.
It may cause poor cool
by
refrigerant leakage resulted
from corrosion
of
the evaporator.
~I
_D_ef_r_os_t_c~y_c_le_s
______________________________
~1
There are two types
of
defrost cycles present
in
this blood bank refrigerator, and both cycles occur automatically.
1. Cycle
defrost
To keep the temperature stable inside the chamber, the
refrigeration compressor
is
cycled
on
and off. During
the "off' periods
any
frost which has accumulated on
the refrigeration coils
is
melted
by
energizing a small
heater, this will not have any discernable effect on the
chamber temperature.
11
2.
Forced
defrost
When ambient humidity
is
high, or a large amount
of
damp product
is
being stored inside the refrigerator,
there is a possibility that cycle defrost may not be
enough to remove
all
of
the frost
on
the refrigeration
coils. In this case, a forced defrost
cycle will be
initiated. While the unit
is
operating under a forced
defrost cycle, the defrost lamp on the control panel will
be lit.
Once the forced defrost cycle
is
complete,
normal operation will resume. The chamber
temperature rises to about
10°C
during the defrosting.