Thermo Scientific Heracell Vios 160i CR, Operating Instructions Manual

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9
Maintenance
Replacing the HEPA Filter in the Rear Wall Filter Enclosure
9-10
Heracell Vios 160i / 250i CR
Thermo Scientific
Replacing the HEPA Filter in the Rear Wall Filter Enclosure
The HEPA filter in the rear wall filter enclosure is fixed with 12 hexagonal bolts.
Loosen the 12 hexagonal bolts and store them in a safe place.
Take the new HEPA filter out of the packaging and make sure that the inner filter surface is not touched.
Insert the new filter and screw in the 12 hexagonal bolts crosswise and then tighten them.
Replacing the Gas Inlet Filter
The gas inlet filter (CO
2
/O
2
/N
2
supply) has a plastic thread and is screwed by hand into the female
thread socket at the control box.
Procedure for gas supply gas inlet filter:
1. Make sure that the gas supply is shut off.
2. Loosen the hose clamp (3/ Figure 9-8 ).
3. Remove the gas hose (4/ Figure 9-8 ) from the gas inlet filter sleeve.
Procedure for all gas inlet filters:
Note
Checking the LED

When the HEPA filter is removed, the unit must be turned on briefly and the fan warning LED
must turn red.
Front View
Back View
Exhaust filter
HEPA filter holder