Maintenance Schedule - Thermo Scientific TSX Series Installation And Operation Manual

Failure to properly connect the battery can damage electrical
components and potentially hinder normal operation of the
freezer. Consult a certified service technician if there are any
questions or concerns about battery maintenance.
Battery Specification
Rechargeable sealed lead-acid battery, 12 V, 7.0 Amp Hr.
Replacement batteries can be purchased directly from
Thermo Fisher Scientific (part number 400159).
Figure 77. Battery Specification
Ultra Low Temperature Freezers

Maintenance Schedule

Regular maintenance is important to keep the unit working
properly. Inspect/Clean as directed in the manual.
Item Interval
Defrost the freezer once per year or
whenever the ice build exceeds 
Defrost
3/8 inches (0.95 cm).
Periodically check the gaskets around
the door for punctures or tears.
Gasket
Periodically clean the ice-build up
around the gasket.
Clean the condenser filter(s) every two
Filter
to three months.
Clean every six months; more often if
Condenser
the laboratory area is dusty.
Replace the battery as indicated by
system alarms or as necessary per
individual status evaluation. Check the
battery connections regularly.
Battery
Although not required, annual battery
replacement is recommended to
ensure proper battery status in the
event of power failure.
Undercarriage Every two to three months, clean any
lighting dust or debris that has accumulated on
(optional) the surface of the lighting housing.
Maintenance and Troubleshooting | 37