WRO 300 H
HCEN12481-02/2012
Regular maintenance
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Regular maintenance
3.1 Heat disinfection and Low Flow Heat
The required Heat disinfection frequency to fulfil the desired
microbiological requirements for the product water depends on
several factors, such as:
•
the quality of the feed water
•
local regulations regarding the microbiological quality of
dialysis water etc.
Therefore, no general rules can be given that cover all situa-
tions. The disinfection schedule should instead be based upon
microbiological testing performed by the clinic. A maximum
period between disinfections should then be established to
ensure acceptable bacteriological quality of the product water
according to the clinic´s standards.
As a guideline, Gambro recommends a minimum frequency of
weekly Heat disinfection to ensure consistent microbiological
quality of the product water.
If the WRO 300 H will not be used for an extended period of
time, regular automated Heat disinfection preset by the time
channels will maintain the microbiological quality of the pro-
duct water.
NOTE
The following instructions are based on the default preset.
NOTE
If the internal water temperature exceeds 45 °C when initating the
preferred procedure the display reverts to the
SELECT
menu or the
CHEM SELECT
menu.
This situation is resolved by initiating RUN and letting the
WRO 300 H operate and perform an Active cooldown until the tem-
perature is below 45 °C.