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Prefilter Replacement
MPS Replacement
Thermo Scientific
The prefilter incorporated in your RO unit is designed to remove particles
from your incoming water source. It is impossible to predict expected life.
It is recommended that the prefilter be replaced when the pressure
differential across the prefilter reaches 5 psig, or if there are visible
particulates in the second position MPS cartridge. The pressure is
displayed on the pressure gauges located on the inside of the RO system
right front door. The differential represents the difference between the
prefilter inlet and the prefilter outlet.
To replace the prefilter, ensure that all power and water are disconnected
from the unit.
1. Remove the prefilter by first pressing the upper and lower thumb
buttons on the quick disconnects.
2. Remove the prefilter by pulling the cartridge straight out.
3. Replace the prefilter by following the instructions located in the
"Prefilter Installation" section of this manual.
The MPS cartridge incorporated in your RO system is designed to prevent
scale buildup on the membrane. This cartridge must be replaced when the
anti-scalant level is approximately half dissolved. At this point, the
quantity of antiscalant entering the water is insufficient to effectively
prevent scale accumulation on the membrane. To replace the MPS
cartridge, ensure that all power and water are disconnected from the unit.
1. Remove the MPS cartridge by pressing the upper and lower thumb
buttons on the quick disconnect fittings.
2. Remove the MPS cartridge by pulling the cartridge straight out.
3. Replace the MPS cartridge by following the instructions located in the
"MPS Cartridge Installation" section of this manual.
Section 8
Maintenance
Reverse Osmosis System
8-3
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