Operator`s manual

P/N 3027436 Rev. C
Regular Maintenance
18
WRO 300 H
Step 1 Press until SELECT is shown in the display and
starts to flash.
Step 2 From SELECT, press
to enter the list of available proce-
dures.
Step 3 Select HEAT by using the .
Step 4 Initiate the heat disinfection by pressing until the light
goes on.
3.1.2 Stop Heat Disinfection Sequence
• Press until light goes on to stop the heat disinfection proce-
dure. An active cooldown is initiated, then the WRO 300 H goes to
standby.
• For more information about the settings of active cooldown, refer to
the Service Manual.
3.2 Chemical Disinfection
For certain peracetic acid disinfectants the manufacturer recommends
that the WRO 300 H should be cleaned with an acid cleaning agent in
accordance with the cleaning instructions prior to chemical disinfection
to preserve the RO membrane. Refer to the section, Cleaning on
page 24.
The use of an ultrafilter on the dialysis machine will remove possible
contaminants originating from the product water and may therefore be
used as a method to extend the time between chemical disinfection of
the WRO 300 H.
Contact MCP for suitable chemical disinfectant for the procedures.
NOTE
If power failure occurs during heat disinfection procedure 301
INSUFFICIENT HEAT is displayed when the WRO 300 H restarts.
Press until the WRO 300 H either goes to standby or an active
cooldown is initiated if it is preset.
NOTE
Chemical disinfection is not required for WRO 300 H units. Heat dis-
infection is the preferred method to maintain bacterial control.
NOTE
The MINNCARE® disinfection option is disabled at the factory and
can be re-enabled by referring to the Service Manual for instructions.