Panasonic KM-DU73Y1 Operating Instructions Manual page 39

BACKUP COOLING KIT (OPTION)
WARNING
As with any equipment that uses CO
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.
devices.
This freezer can be provided with a backup cooling kit (CVK-UB2) which is available as an optional
component. For the installation, refer to the instruction manual enclosed with the backup cooling kit.
Contact our sales representative or agent for the installation of a backup cooling kit.
1. Switch of backup cooling kit (BACKUP)
When turning on the backup cooling kit, the backup
standby lamp is brightened. This means that the backup
cooling kit is ready.
backup cooling kit, turn off this switch.
2. Test switch (TEST)
This switch is for checking the operation of backup
cooling kit. Pressing this switch is resulted in the
release of liquid carbon dioxide under any chamber
temperature.
3. Temperature setting knob (TEMP. SET)
With this knob, set the temperature at which the backup
cooling kit is operated. The effective set temperature
range is between -50
Note:
Do not set the temperature setting knob to the
temperature lower than -70
consumption of CO
injection.
4. Backup standby lamp (BACK UP STANDBY)
A backup standby lamp is turned on when the switch of
backup cooling kit is on.
gas, there is a likelihood of oxygen depletion in the vicinity
2
These may include atmosphere monitoring and warning
To stop the operation of the
o o
C and -70 C.
o
C to avoid the early
gas resulting from continuous
2
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1
2
3
4
BACK UP
STANDBY
Door switch box