Automatic Defrost; Gasket Maintenance; Alarm Battery Maintenance; Preparation For Storage - Thermo Scientific TSX Series Installation And Operation Manual

Maintenance

12.4 Automatic Defrost

12.5 Gasket
Maintenance
12.6 Alarm Battery
Maintenance
12.7 Preparation for
38 TSX -30°C Plasma Freezers
5. Reconnect power.
The defrosting process on all -30°C freezers initiates automatically in response to
a built-in timer. The defrost interval timer adapts to user conditions and will
either be approximately every 6 hours or 15 hours. During this time, there may
be a slight increase in display temperature.
If a door or port has been open for an extended duration allowing room air to
flow into the freezer, frost may build up inside of the freezer and negatively affect
the performance of the freezer. The unit defrost may not be able to overcome this
and the unit must be manually defrosted by turning the freezer off.
Periodically check the gaskets around the door for punctures or tears. Leaks are
indicated by condensation or frost which form at the point of gasket failure.
Make sure that the cabinet is level (refer to Section 7.1.1 for leveling
information).
Keep the door gaskets clean and frost free by wiping gently with a soft cloth.
To check the door seal, complete the following steps:
1. Open the door.
2. Insert a strip of paper (a couple of inches wide) between the door gasket
and the cabinet flange and close the door.
3. Slowly pull the paper strip from the outside. You should feel some
resistance.
4. Repeat this test at 4-inch intervals around the door. If the door does not
seal properly, replace the gasket.
Have a certified technician replace the alarm battery every twelve months at most
or when the alarm is active. The part number for a replacement battery is
322533H01.
If the unit is going to be stored in an off condition, allow the unit to warm up
storage
and dry out with the door open before moving into storage.
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