63
5.5
Cleaning and Disinfection Method Statement
Step 1 - Refer to the Risk Assessment
•
Refer to the Manufacturers instructions and safety advice.
•
Ensure the area is well ventilated.
•
Ensure the
HE2
system is OFF and isolated from external controls.
•
Dismantle unit and scrub tank fully. Remove matrix.
Step 2 - Mix Disinfection Solution
•
Mix disinfection solution following the manufacturers instructions. L8 recommends 50ppm Chlorine
solution circulated for 1 hour. NB: For larger or particularly unclean systems this process may need to
be repeated.
•
Calculate the total water volume of the system using wet and dry weight values (refer to dimension
tables at the end of this manual).
• Note:
Depending on the Risk Assessment, it may be necessary to clean the sump tray prior to disinfec-
tion.
•
Solution loses strength over time and the process may need to be repeated.
Step 3 - Run the unit
•
*Note the various control settings in case it is necessary to override them.
•
Switch the panel switch to the drain (lower) position to drain water in sump tray.
•
Switch the unit to the on (upper) position and allow the tank to refill.
•
Place the unit into a RUN condition (*control settings may need to be overridden, refer to the program-
ming
section of this manual).
Step 4 - Add disinfection solution
•
Add the solution to the water sump tray and allow to mix.
•
Measure the strength of the disinfection solution and check it is the correct strength in accordance with
manufacturers guidelines.
•
Note the strengths of the disinfection solution at 15 minute intervals and record on a
Record of Cleaning
& Disinfection
sheet for further reference.
•
Adjust solution strength as required.
Step 5 - Circulate disinfection solution
•
Check all surfaces are wetted for a minimum of 1 hour at 50ppm.
Step 6 - Neutralise the disinfection solution
•
Mix neutralising agent as manufacturers instructions.
•
Allow the neutralising agent to disperse over the matrix and circulate in the sump tray.
•
Measure the strength until the disinfection solution is weak (less than 5ppm)
Step 7 - Drain the unit into foul drain (
MC3
ONLY)
•
Turn Off any fill cycle.
•
Drain unit until empty into appropriate drain (depending on Risk Assessment) and rinse the tank if
necessary.
•
*Where required, reset to original setting and put unit back into operation. Test for correct operation as
per commissioning section of the manufacturers manual.
•
Check for and complete maintenance requirements as per manufacturers instructions.
•
Always leave work area clean, dry and tidy.
Step 8 - Recommission the
HE2
system
•
Refer to the commissioning section of this manual.
If in doubt always contact your Condair distributor.
Содержание HE2
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