Maintenance, Checking the Timer Program

UF SERIES WATER FILTRATION SYSTEM

MAINTENANCE

The filtration system is designed to require very little maintenance. To ensure that the water is of the highest quality, occasionally some service is required.

Checking the Timer Program

During normal operation, the system displays the time setting for the Flush Interval Mode (FI) and the deci- mal will flash in one second intervals. This is the time between flushing, not a time of day setting.

Over time, it is possible that the time that the system flushes occurs at a time of high water use. If this cre- ates a problem, the timer can be reset by unplugging the power cord, waiting for 5 seconds, and plugging the power cord in again. The timer then begins timing from the point power is restored to the system. Follow the procedures within the Operation section of this manual to check and set the timer settings.

Changing the Cartridges

While the filtration system is designed for long life, eventually the cartridges will need to be replaced.

1.Open the faucet or tap closest downstream to the filtration system.

2.Close the inlet water valve and allow the system to depressurize.

3.Place a bucket under the strainer at the inlet connection to the system. Open the strainer by unscrewing the cap. Water will flow out of the strainer as the system drains.

4.Press and hold the Start button to help drain the system.

5.Reattach the cap on the strainer when the water flow stops. Unplug the power cord.

8.Using a screwdriver, remove the screws from the cartridge bracket and set the bracket and screws aside.

9.Unscrew the cartridge end caps from the car- tridge, being careful to retain the O-rings from each cap. Set the O-rings aside.

10.Install a new cartridge to the system using the cartridge bracket and screws saved from Step 8.

11.Connect the permeate port connection.

12.Inspect the O-rings to make sure they are clean and are not splitting or cut. For all O-rings, make sure they are lubricated with an approved food grade lubricant acceptable for drinking water use.

13.For each end cap, position the O-ring between the end of the cartridge and cap and screw the cap onto the cartridge. Tighten with strap wrench as necessary.

14.Follow the Flushing and Starting the System and Sanitizing the System and Lines procedures in the Installation section of this manual to complete the cartridge change.

System sanitization

Over time and use, the plumbing downstream from the system may require sanitization. It is recommended that the system and downstream plumbing be sani- tized at least once a year. When necessary, follow the Sanitizing the System and Lines procedure in the Installation section of this manual.

START

Figure 14. Manual Flush

6.Using a strap wrench (up to 6” capacity), loosen the top and bottom end caps. DO NOT remove the top and bottom End Caps yet.

7.Disconnect the permeate port connection.

14	P/N 1010827 Rev. D 04/06

UF-420/440 specifications

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