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New Brunswick Scientific
User’s Guide
5.1.6 Lubrication
Every 12 months the outer door hinges and the handle mechanism should be
lightly
lubricated using general purpose oil or spray grease.
5.2 Defrosting
After an extended period of operation, defrosting may become necessary:
1.
Deactivate the power off audible alarm by switching the alarm battery switch
(located behind the lockable panel on the front or side of the freezer) to its off (
O
)
position.
2.
Turn the freezer power switch off (
O
)
.
3.
Unplug the freezer from the electrical supply.
4.
Leave the door or lid open.
5.
Allow the accumulated ice to melt.
CAUTION!
DO NOT attempt to chip or scrape the ice with a sharp instrument.
Allow the ice to melt naturally.
6.
Remove the resulting water
7.
Dry and decontaminate the interior of the freezer.
8.
When the freezer is clean and dry, reconnect the freezer to the electrical supply.
9.
Turn the power switch on (
I
) and reactivate the alarm battery switch.
5.3 Electrical
Components
CAUTION!
There are no user controls behind any panels. The removal of any part
or panels from the freezer by anyone other than a qualified and
authorized Service Engineer may invalidate the warranty.
5.3.1 Audible
Alarm
Regularly check the audible alarm by pressing and holding the
TEST
key in the
DIAGNOSTIC INFORMATION
screen
