MAINTENANCE OF THE CONTROL UNIT
CHANGING THE WATER FILTER
When the clear plastic water filter becomes discolored, it should be
replaced to prevent reduced water flow to the SWERV
Scaler. Our general recommendation is to change the filter once per month.
1. Disconnect the water supply hose from water source. If a
quick-disconnect connector is attached to the end of the hose,
relieve the water pressure by pressing the tip of the connector
and drain the water.
2. Hold the fittings on both sides of the filter disk and twist
counterclockwise. (Fig. 9) Remove the filter section from
both sides of the water hose. (Fig. 10)
3. Install the replacement filter (part number: UMWF) onto the
water hose fittings. The filter should be positioned to align with
the correct hose fitting.
4. Tighten the two hose fittings with your hands. Reconnect the water
supply hose, then activate the auto-purge function to remove air
from lines. Be sure to test for leaks.
WATER LINE MAINTENANCE
Recommendations for dental unit water quality have been published by the Centers for Disease Control
(CDC) not to exceed 500 cfu/mL
100 cfu/ml. Refer to your national regulatory authorities for recommendations specific to your local area.
The CDC recommends monitoring dental unit water regularly. Hu-Friedy recommends as a conservative
approach to start by testing the quality of the water flowing into and out of the SWERV
placement of a sterilized ultrasonic insert, then monitoring weekly. The monitoring interval may be lengthened
based on established results. If results do not meet your water quality goals, repeat steps outlined for preparing
your waterlines. Monitoring can be accomplished using in-office monitoring kits or use of a commercial water
testing service. (
ref.: "Guidelines for Infection Control in Dental Health-Care Settings 2003, " CDC)
*
It is strongly recommended that this system is regularly cleaned and maintained by a waterline treatment
product such as Hu-Friedy's Team Vista
product). This can be accomplished by connecting the SWERV
dental unit or a number of devices available from your local distributor. Please follow the directions for use for
Team Vista or selected waterline cleaning product.
During the periodic antimicrobial cleaning process using Team Vista, flush as least 500 ml of potable water
through the dental unit waterlines to remove any residual chemical.
PURGING UNIT WATER LINES
1. Verify that the unit is ON using Power ON/OFF switch.
2. Set the water control knob to maximum.
3. Hold handpiece (without insert) upright over a drain.
4. Press and hold Auto-Purge Button (Fig. 11) for 2 seconds or until
unit beeps. Auto-Purge light will flash, and unit will automatically
purge the water line for 45 seconds. To interrupt the purge function
press the Auto-Purge button again anytime during the 45 seconds. It is
recommended that the water lines be purged for at least 45 seconds
between patients and for at least 2 minutes at the start of each day.
Magnetostrictive
3
*
. European Union Drinking Water Standards specify a maximum of
Dental Unit Waterline Cleaner (or other approved waterline cleaning
™
device to the closed water system on your
3
SWERV
3
device prior to
3
9