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The pressure switch must be wired to break the current on the power line between the RO unit’s
switchbox and the RO unit’s low pressure switch. Do not break the current at the pump motor, as this
will cause the inlet solenoid to remain activated and open when the machine is shut down.
An optional Permeate pressure Switch package is available on all RSX II Units. Please order Part #
RSXPSO
2. Using a Atmospheric Pressure (non-pressurized) Storage Tank and Float Switch
Your Vectapure™ RSX II RO may be wired to a float control shut-off switch that shuts the system down
when a non-pressurized storage tank is filled. A level float switch package is available for your RSX II
system. Order part # LCS15MU
Make sure that the tank size is selected to provide adequate water storage for your peak demand
period. Keep in mind that atmospheric water storage vessels are subject to contamination by airborne
bacteria – they should include a lid, be sanitized before use and periodically disinfected. RO product
water will have no chlorine residual and will be subject to contamination at all stages in the plumbing
system. Consider UV disinfection as an inline option for all water being pumped from the storage tank
into the plumbing system. A overflow bulkhead drain fitting should always be installed in the tank and
connected to a floor drain to protect from a failed level switch.
If the inlet bulkhead fitting to the non-pressurized tank is below the maximum water level in the tank,
make sure that a check valve is installed in the product water line between the RO unit’s outlet and
the tank inlet. This will ensure that backpressure from the tank will not damage the membrane(s). To
eliminate this problem, install the bulkhead fitting above the level switch.
Consult your
Waterite Commercial RO Systems Price List
for information and availability on a wide
variety of water system components including storage tanks, repressurization pumps, bulkheads, tube,
pipe, pressure switches, fittings, UV disinfection systems and float valves.
Section 3. Installation
Your system includes:
√ The main RO/filter assembly frame with one assembled pre-filter, booster pump, membrane
housing(s), flow controls, and pressure gauges.
√ One or two membrane(s) (in a sealed plastic bag) and one 5-micron polypropylene sediment
cartridge;
√ One Pre-filter housing wrench;
√ One Owner’s package including owner’s manual and warranty certificate.
Step 4. Selecting the System Location
The filter housing will need periodic maintenance - easy access must be maintained. Do not install in
a location with high humidity, direct sun or a direct source of heat. Typically, a commercial mechanical
room is ideal. Never expose the RO unit to freezing temperatures.
Use the threaded feet at the base of the RO stand to level the unit.
The unit will need to be installed in a location that has ready access to 120V power, the feed water line
and near a drain capable of handling the waste flow from the machine.
