Maintenance; E-Pure Final Filter Replacement; Cartridge Replacement - Thermo Scientific E-pure 1090 Series User Manual

Cartridge
Replacement
E-pure Final Filter
Replacement
Thermo Scientific

Maintenance

Section 8
Warning Disconnect power supply to equipment before servicing. Refer
servicing to qualifying personnel.
Warning Depressurize the system prior to attempting to remove the
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canisters.
When the resistivity of the water drops below the desired level, replace all
cartridges with new cartridges.
1. Disconnect power to the system.
2. Close the shutoff valve on the inlet side of the system.
3. Place a customer-supplied container under the final filter and open the
draw-off valve to depressurize the system. Close the draw-off valve.
4. Place a container under the cartridge canister to collect any spillage.
5. Carefully remove the canister from the head by depressing the thumb
lever and rotating 1/4 turn from right to left. Drain the canister into
the container and remove the exhausted cartridge.
6. Inspect the O-rings at the top of the canister and inside the head and
replace if worn.
7. Install new cartridges as explained in Initial Operation section.
It is recommended that the final filter be replaced every 15 working days,
when there is an unacceptable high bacteria passage or when flow decreases
to less than 1 liter per minute.
To replace the final filter, follow instructions in Filling Procedure, Step 7.
Always run at least 2 liters (1/2 gallon) of deionized water through a new
filter after installation.
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E-pure® Water Purification 8-1