36 | Maintenance
2588705_A_EN_1811_UB_IOM
UB
To disinfect a component:
1. Review the maintenance instructions for the component that will be cleaned and disinfected.
Specific considerations must be taken into account for some components.
2. Ensure UV assembly is shut down before disinfection.
3. Clean the component with hot water and soap, and rinse with water. Remove biofilms and any
surface impurities. Avoid using hard or metallic brushes (to avoid surface abrasions) to clean
and disinfect.
4. Descale components using citric acid* (pH 2), then rinse with water.
l
*Let the component soak for 20 minutes and avoid scrubbing. Do NOT agitate the piezo-
electric transducers because they are very fragile.
5. Apply disinfecting agent (hydrogen peroxide) to the component and allow to air dry (this allows
the agent to penetrate and kill pathogens).
6. Rinse thoroughly with
clean
water (RO or DI water) to remove residue.
To disinfect hoses:
1. Clean and disinfect hose connections, as described above.
2. Remove any residue or particles from the hoses.
3. Flush the hoses with hot water.
4. Flush the hoses with disinfecting liquid and allow to air dry.
5. Rinse the hoses with
clean
water (RO or DI water) to remove residue from disinfectant.
9.3
Maintenance List
Perform the following maintenance tasks at the intervals specified in
Table 6 on the facing page
. For the
components referenced in the table, refer to
"Spare Parts List: Ultrasonic Blower" on page 40
.
