17
START-UP PROCEDURE
Follow this procedure for the initial operation of the unit and for consequent operations (after temporary
stoppage for cleaning, maintenance or moving).
After a power failure, the unit will restart operation automatically with the same settings as before the
power failure [page 26].
1.
Connect the power supply cord to the dedicated outlet with appropriate rating with the chamber empty.
►The alarm indicator and the chamber temperature may blink. And the buzzer may sound. In this case,
stop the buzzer by pressing the buzzer stop key (BUZZER). (This is not a malfunction.)
<Important>
If the unit is unplugged or the power to the unit is interrupted, do not restart the unit for at least 5 minutes.
This protects the compressor.
Close the door securely. The door check indicator is lit when the door is open. The buzzer activates when
the door is opened for more than two minutes. The buzzer is canceled when the door is closed.
2.
Allow the chamber temperature to fall to
5
o
C (The chamber temperature is set to 5
o
C at the factory).
Check the chamber temperature on the temperature display.
Allow the chamber temperature to fall to the set temperature when the start-up after cleaning,
maintenance or moving.
3.
Switch on the light switch to check the fluorescent lamp is on. After checking, turn off the fluorescent
lamp if the light is not necessary.
4.
Set the desired chamber temperature [page 19].
5.
When the chamber temperature gets to the set temperature, begin slowly placing items into the
chamber to minimize the temperature rise.
<Important>
Always put the stored items on the shelf (MPR-722) or in the drawer (MPR-722R), not on the bottom of
the chamber. Do not contact the stored items to the chamber walls.
Do not block the air intake vent nor air exhaust vent. Place the stored items with adequate space between
them to keep the cool air circulation.
<Attention>
The chamber temperature cannot be maintained due to the heat emission from the electrical equipment if
any electrical equipment is used in the chamber. Refer to the table below when using any equipment.
(ambient temperature; 35
o
C)
Heat load in chamber
Lowest chamber temperature
100 W
2
o
C
200 W
9
o
C
300 W
18
o
C
