MVE Biological Systems
TEC 3000 Operating and Maintenance Freezer Manual
13289499 Rev H •
115
Plumbing Leak Check
Leaky plumbing connections can create a host of problems including but not limited to:
•
Slow fill times
•
Nuisance Alarms
•
High LN2 Consumption
•
Inaccurate level readings
•
Inaccurate liquid usage readings
Leaky plumbing connections are especially common on liquid cylinder supply systems, since the
fittings are regularly loosened and tightened during liquid cylinder swap out.
1. With the supply system at operating pressure, thoroughly spray all transfer hose connections
and freezer plumbing connections with leak detect solution
2. Allow leak detect solution to penetrate fittings for at least 30 seconds
3. large leaks will be immediately apparent with large bubble formations
4. Small leaks will take longer to detect, with small bubble formation in the appearance of
“foam”
5. Most leaks can be repaired by tightening the suspect fitting with a crescent or appropriate
sized wrench.
6. If tightening the fitting does not fix the leak, check the fitting for cracks and or galling. If the
fitting is damaged, replace.
7. Recheck any replaced fittings for leaks.
High Temp Alarm Test
Please refer to
Section 7.2.1.2 page 48
for details and instructions on the High Temp Alarm Test.
Содержание MVE 1842P-150
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