Start-Up Of Unit - Sanyo MPR-311D(H) Instruction Manual

START-UP OF UNIT
The following procedure should be adhered to for initial start-up and continuous operation.
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Connect unit to dedicated power supply. Do not put
any product in the unit at this time.
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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.
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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.
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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.
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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.
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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.