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CONTROL PANEL
1. Power switch of back-up system (BACKUP)
When turning on the system, the back-up stand-by on the door switch ass’y is brightened. This means
that the system is ready. When this switch is turned off, the operation of the back-up system stops,
and a back-up stand-by lamp turns off the lights.
.
2. Test switch (TEST)
This button switch is for checking the operation of back-up system. Pressing this switch is resulted
in the release of LCO
2
gas into the freezer chamber with regardless the condition. A battery lamp
is turned on when battery capacity decreases at this time. Push a back-up test switch for the life
test of the battery sometimes.
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.
4. Back-up stand-by lamp (BACKUP STANDBY)
It is the lamp turned on by ON/OFF of the back-up power switch. (GREEN color)
5. Battery lamp (BATTERY)
A power failure and a back-up test switch are pushed, and CO2 gas appears, and it is turned on when
battery capacity decreases.(ORANGE color).
CAUTION
Batteries are expendable supplies. Exchange it for about every three years. And, entrust a dealer or
sales with the exchange of the battery, and cooperate with recycling of the battery after the use.
When a battery declines by the power failure, a back-up unit stops working, and an exchange is
recommended because a contents thing can not be protected any more.
1
2
3
Door switch ass’
y
for CVK-UB4
BACK UP
STANDBY
4
5
BATTERY
Control panel for CVK-UB4