Thermo Scientific 3906 Operating Manual page 73

See
Manual
Section
-- Inspect door latch, hinges and
door gasket seal.
8 Check air exchange ventilator
caps for adjustment; open or
close as required.
9 Perform a complete
decontamination procedure.
Wipe down interior, shelves,
side panels with disinfectant.
Rinse everything well with
sterile water.
13 Verify and document all cali-
brations at minimum once a
year.
10 Inspect and clean the humidity
generator, at minimum once a
year.*
5 Clean drip pan and drain lines.
9 Clean refrigeration system con-
denser.*
8 Verify defrost cycle for below
10°C operation.
-- Change filters (under normal
conditions).
-- Replace filter elements on the
dryer, if applicable. †
-- Safety check of the electrical
system according to national
legislation.
-- Rebuild solenoid valves on the
dryer, if applicable. †
-- Replace/repack the desiccant
towers on the dryer, if applicable.
-- Replace the check valve and
o-rings on the dryer, if applicable.
-- Check in regular intervals the
light modules for defect lamps.
Thermo Scientific
Action 3 Months

Yearly 2 Years


Between Experi-
ments. More frequent
deconta- mination
may be required,
depending on use
and environmental
conditions.

Depending upon the
quality of water used
in the humidification
system, it may be
necessary to clean
more frequently.






Maintenance |
5 Years 6 Years


Model 3900 Series | 10-3
Chapter 10
