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

8 Startup

8.1 Initial Startup

8.2 Product Loading and
Unloading Guidelines
Thermo Scientific
To start up the freezer, complete the following steps:
1. Verify that the sensor probe(s) have been installed in the bottle(s) as
described in Section 7.6.
2. Ensure the double pole circuit breaker switch located next to the power
inlet is in "ON" position (i.e. "I" position).
3. Insert the key in the switch and turn to the Power On position. The
display will show the actual cabinet temperature and the compressor and
evaporator should start within approximately
10 minutes.
4. Allow the unit to reach operating temperature before loading it with any
product. To stabilize the temperature profile, a 24-hour waiting period
is recommended.
5. If you desire to enable the alarms, turn the three position key switch one
turn further clockwise to the Alarm On position. To avoid nuisance
alarms, wait until the unit has cooled down to the desired operating
temperature (-30°C default).
6. If you have a remote alarm, hook it up at this point (refer to Section 7.8).
7. If desired, lock the cabinet door using the key. Place duplicate key copies
in a safe place.
All controls should now be fully operational, the alarm active (if enabled),
and all visual indicators active.
CAUTION: Use gloves when handling samples to avoid potential frost
bite.
When loading your plasma freezer, take care to observe the following guidelines:
• Never load the plasma freezer beyond capacity. The number of 250 ml
bags that are recommended for your unit can be found in Table 2.
• Distribute the load as evenly as possible. Temperature uniformity
depends on air circulation, which could be impeded if drawers are
overfilled, particularly at the top of the cabinet.
• For critical applications such as plasma storage, 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.
TSX -30°C Plasma Freezers
Startup
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