Specifications

M-Series Water Purification Machines
1238160 Rev. D 4-5 Operation and Maintenance
2. With the machine off, close the feedwater inlet valve and open the CIP
inlet valve. The permeate and concentrate streams must be diverted to
the cleaning container for recirculation. Ensure that the prefilter is clean.
A CIP pump is recommended to supply feed pressure in the machine.
3. To circulate the cleaning solution through the machine with suction, the
low-pressure switch must be bypassed. Use a noncollapsible suction
hose or pipe to feed the machine.
NOTE:
Do not allow the machine pump to operate without concentrate flow. If
pump prime is lost when trying to clean on suction, positive inlet pressure is
required to reprime. No air should be sucked into the inlet during suction
cleaning.
4. Turn on the machine (and CIP pump, if applicable) and recirculate the
cleaning solution at the same rate and pressure used for flushing. The
cleaning solution should be recycled for approximately 15 minutes or until
the solution temperature reaches 85°F (29°C). If heat rise occurs too
quickly, larger volumes of cleaning solution or the use of a heat exchanger
will slow the temperature rise. Turn the machine off and allow it to soak
for 10 minutes. Turn off the CIP pump control circuit if applicable.
NOTE:
It is possible to clean at temperatures of 100°F to 110°F (38°C to 43°C)
maximum, but lower temperatures (under 100ºF for normal cleaning) are
recommended. Use higher temps only sparingly for extreme fouling issues.
Do not allow the cleaning temperature to exceed 110°F (43°C) so as not to
cause damage to the membrane element. Allow the cleaning solution to
recirculate for 10 minutes. Turn the machine off and allow the sepralators
to soak in the solution for 20 minutes.
CAUTION:
Do not leave a cleaning strength solution in the machine for a period longer
than one hour. The cleaning solution may damage the sepralators and/or
the machine during an extended period of contact.