Product Loading And Unloading Guidelines - Thermo Scientific TSX Series Installation And Operation Manual

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8.2 Product Loading and
Unloading Guidelines
20
TSX -20°C Flammable Materials Storage Laboratory Freezers
When loading your freezer, take care to observe the following guidelines:
• Distribute the load as evenly as possible. Temperature uniformity
depends on air circulation, which could be impeded if the internal
storage components are overfilled, particularly at the top of the cabinet.
CAUTION: Always store flammable materials in closed containers. Follow
the standard on Fire Protection for Laboratories Using Chemicals, NFPA
45-2011, Clause 10.5.2.
• For critical applications, be sure that the alarm systems are working and
active before you load any product.
• Ensure clearance between the top of the cargo and the bottom of the
shelf/drawer/basket. Lack of clearance may affect unit performance or
impede operation of drawer/basket. Keep cargo within the bounds of
the shelf/drawer/basket.
• For initial product loading and after removing the drawers or baskets for
cleaning, be sure to load the unit from the bottom drawer or basket up
to ensure the components are seated properly. (Applicable for drawers
and baskets only).
• Only open one drawer or basket at a time.
• Avoid disrupting the thermal bottle(s) when repositioning interior
components.
• The floor of the cabinet should not be loaded.
• Never load the unit above the upper load limit line or below the lower
limit line (if present). This is important to ensure that air can circulate
properly and evenly distribute the temperature throughout the interior.
Figure 9. Load Limit Line
Thermo Scientific