GE F-801 User Manual
Page 65
F-801 Internal RO System by GE Osmonics
12552e – 27 Feb 04
4- 25
Routine Maintenance
4.4.2.1 Renalin® Pre-Disinfection Preparation
CAUTION:
When ‘RENALIN®’ is to be used as a disinfectant, several preparatory steps are
required by GE Osmonics as well as the membrane manufacturer. Failure to
comply with these instructions, which incorporate instructions from the membrane
manufacturer, will jeopardize the system performance and warranty.
a.
The system must be free of all incompatible materials.
b. Clean the membranes with an acid such as 0.1% HCl or 0.4% phosphoric
acids. Calcium and Iron Cleaner may be used as an alternate. It is essential
that all iron and other transition metals be removed from the membrane
surface.
CAUTION:
The RO system must be disconnected from the tempered water source (if present).
The solution temperature must be monitored closely. At temperatures above 25
°
the ‘RENALIN®’ solution becomes very aggressive towards the RO membranes
and will damage them in a short period of time. The disinfection procedure will
raise the temperature of the solution. The operator must be prepared to add RO
ice to the solution or discontinue the procedure when the water temperature
approaches 77ºF /25
°
C.
NOTE:
At a minimum, a low pH cleaning should be performed prior to disinfection. It is
preferred that a low and high pH cleaning be done.
1.
Read and understand the ‘RENALIN®’ disinfection procedure. Pay particular
attention to steps a and b in CAUTION statement above before initiating the
procedure.
2.
Ensure the cleaning/disinfectant container is clean. Add 1-1/2 gallons (5.7
liters) of RO permeate (product water) to the container.
3.
Add disinfectant concentrate per manufacturer’s recommendation to the
container and mix to prepare a 1:100 (1%) dilution.
WARNING:
Label the machine with appropriate warning signs such as "Do Not Use/ Contains
Disinfectant” to prevent use of the RO until properly rinsed.
4.
Close the product valve. Disconnect the product line (white QD) from inlet line
of the Fresenius dialysis machine. Cover exposed inlet water line with sterile
gauze and secure with tape.
5.
Connect the product rinse line to the product line and connect the product line to
the white fitting on the disinfect/cleaning tank. Open the product valve.