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Maintenance
WARNING
To prevent electrical shock, disconnect the power prior to servicing E-pure.
Cartridge Replacement
When the resistivity of the water drops below the desired level, replace all cartridges with new cartridges.
A. Disconnect power to the system.
B. Close the shutoff valve on the inlet side of the system.
C. Place a customer-supplied container under the final filter and open the drawoff valve to depressurize
the system. Close the drawoff valve.
D. Place a container under the cartridge canister to collect any spillage.
E. 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.
F. Inspect the O-rings at the top of the canister and inside the head and replace if worn.
G. Install new cartridges as explained in INITIAL OPERATION.
E-pure
®
Final Filter Replacement
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 on page 11 Step G.
Always run at least 2 liters (1/2 gallon) of deionized water through a new filter after installation.
Fuse Replacement
WARNING
Disconnect from power supply.
WARNING
For continued protection against possible hazard, replace fuses with same type and rating of
fuse.
A. Disconnect power to the system.
B. Remove the front cover of the pump cabinet by removing the four screws that secure it to the cabinet.
There are two located on the right and left hand side portion. The front cover is secured to the cabinet
by a hinge on the bottom.
C. Remove the plate located above the pump and motor by removing the four screws that secure the
plate. This will expose the fuses and holder. (See Exploded View Figure C, page 17)
D. Replace fuses.
E. Reassemble plate and resecure front panel.
System Sanitization
Frequency of cleaning is difficult to predict because of the wide variety of feedwater supplies that can be
used, but the need for cleaning can be easily determined. Whenever a cartridge is replaced, always
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