15
OPTIONAL COMPONENTS
Back-up system
WARNING
As with any equipment that uses CO
2
gas, there is a likelihood of oxygen depletion in the vicinity
of the equipment. It is important that you assess the work site to endure there is suitable and
sufficient ventilation. If restricted ventilation is suspected, then other methods of ensuring a
safe environment must be considered. These may include atmosphere monitoring and warning
devices.
This freezer can be provided with a back-up system (CVK-UB2 or CVK-UB2(I)) which is available as an
optional component. For the installation, refer to the instruction manual enclosed with the system.
1.
Switch of back-up system (BACKUP)
When turning on the system, the lamp is brightened.
This means that the system is ready. To stop the
operation of the system, turn off this switch.
2.
Test switch (TEST)
This switch is for checking the operation of back-up
system. Pressing this switch is resulted in the release
of liquid carbon dioxide without system operation.
3.
Temperature setting knob (TEMP. SET)
With this knob, set the temperature at which the system
is operated. The effective set temperature range is
between -50
o
C and -70
o
C.
Independent inner door
This freezer can be provided with an independent inner door (MDF-7ID or MDF-5ID) which is suitable for
each shelf. Use the independent inner door (MDF-7ID or MDF-5ID) instead of the standard inner door
when the chamber divided into small section is desirable.
Note:
The cooling performance of the freezer is inferior to that indicated on page 30 when the independent
inner door (MDF-7ID or MDF-5ID) is installed.
The measure of the cooling performance: -82
o
C at the center of the chamber (AT; 30
o
C, no load)
1
2
3
