MVE Biological Systems
TEC 3000 Operating and Maintenance Freezer Manual
13289499 Rev H •
117
Lid Thaw Procedure
1. Open or remove lid from freezer. Depending on the freezer model, it may be necessary to
remove the lid from the hinges for it to completely warm to room temperature.
2. It is recommended that the freezer opening be covered with a spare lid or in another non-
airtight manner to prevent moisture from entering the storage space and to minimize the top
box temperature change while the lid is open.
3. Allow lid to sit at room temperature for approximately 30 minutes.
4. Once thawed, thoroughly dry lid, cork, and liner.
5. Inspect lid for damage and replace parts if necessary.
Folding Step Inspection
MVE 1500 and 1800 series freezers equipped with folding steps assemblies should be inspected
for integrity at least every 6 months. Verify that hinges and free of cracks and all connections are
secure. Check that the anti-slip strips on the steps are in good condition and replace if necessary
(PN 4810179). Ensure the step locking strap is able to securely hold the steps in their folded
position. If the pivot bolts continuously loosen, apply thread locker (PN 11087674) and retighten.
Lid Hinge Inspection
MVE freezers with hinged lids should be inspected for integrity at least every 6 months. Verify that
the hinges are free of damage and securely attached to the freezer and lid. MVE hinged freezers
are counterbalanced for easy opening and closing. Ensure the lid opens smoothly to a near 90°
angle. The lid should remain completely open without assistance. Ensure lid closes smoothly and
comes to rest centered on the freezer. Adjust hinges or replace as needed. For part numbers,
contact Customer/Technical Service with the freezer serial number.
Inline Filter Replacement
–
For Stock, HE, Cabinet, and MVE series
CAUTION
: Ensure that the LN2 supply valve is closed and the plumbing
assembly is vented before removing the inline filter.
1. Close the LN2 supply valve and disconnect the LN2 transfer hose from the plumbing
assembly fill tee.
2. Loosen and remove the fill tee and inline filter from the plumbing assembly.
3. Replace the inline filter (PN 11648945) and reassemble the fill tee and filter to the plumbing
assembly using new Teflon tape if needed. Ensure the filter is oriented correctly so that the
affixed arrow indicates the direction of LN2 flow.
4. Reconnect the LN2 transfer hose, open the LN2 supply valve and check fittings for any leaks.
Inline Filter Replacement
–
HEco Series
CAUTION
: Ensure that the LN2 supply valve is closed and the plumbing
assembly is vented before removing the inline filter.
1. Close the LN2 supply valve and disconnect the LN2 transfer hose from the plumbing
assembly fill tee.
2. Using an adjustable wrench, loosen and remove the inline filter (Y Strainer
– PN 20669243).
3. Clean/Replace the strainer as necessary. Reassemble the fill tee and filter to the plumbing
Содержание MVE 1842P-150
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