General Recommendations; Temperature Monitoring; General Usage; Initial Loading - Thermo Scientific TSX Series Installation And Operation Manual

General Recommendations

Temperature Monitoring

IMPORTANT NOTE: We recommend the use
of a redundant and independent temperature
monitoring system so that the freezer can be
monitored continuously for performance
commensurate with the value of product
stored.

General Usage

This refrigeration system is designed to maintain ultra-low
temperatures with safety in an ambient environment within
15 °C to 32 °C (59 °F to 90 °F), only when the freezer is used
for storage.
CAUTION:
Freezing large quantities of liquid, or items with high
water content, will temporarily increase the chamber
temperature and will cause the compressors to
operate for a prolonged time period.
Avoid opening the door for extended time periods
since chamber temperature air will escape rapidly.
Also, keep the inner doors closed as much as
possible. When room air, which is higher in humidity,
replaces chamber air, frost may develop in the
chamber more rapidly.

Initial Loading

Allow the freezer to operate at the desired temperature for a
minimum of 12 hours before loading.
Load the freezer one shelf at a time. When using racks (part
numbers: 920090, 398329, 398322, 1950520, 1950518,
1950519, 1950522, 1950639, 920091, 398328, 1950521,
1950592, 1950523, 1950642, 1950787, 1950791, 1950642,
1950799, 1950819) or racks combined with generic storage,
it is important to follow these guidelines:
• Start loading racks from the bottom shelf (cabinet floor)
and work upwards.
• Avoid removing more than 2 racks from a shelf at the
same time, except for upper most shelf containing racks.
Ultra Low Temperature Freezers
This unit is not a "rapid-freeze" device.
The shelf load ratings are as follows:
• For generic storage, the shelf rating is 150lb.
• Including the considerations mentioned above, the shelf
ratings for the rack-based storage is as follows:
- 400 size: 165lb
- 500 size: 205lb
- 600 size: 245lb
- 700 size: 285lb
CAUTION: Failure to load more than one shelf
at the time, may cause excessive stress on the
compressors.
WARNING: Failure to follow these ratings or
procedures may damage the shelving system
potentially resulting in injury.
Breaker Switch and Battery Door
Opening / Closing
To open the grille door, pull the door from the top right corner
as shown in the following figure.
To close the grille door, push the door against frame to hold
latch in position.
Figure 1. Door Opening
General Recommendations | 7