8
Step 3. Plan Your Water System
1. Using a Pressure Storage Tank and Pressure Switch
Your RO system will produce permeate (product water) at a pressure capable of pressurizing a bladder
tank, though tank recovery time will be limited by the production rate of the membrane(s). Rates of
water production for Vectapure™ RSX II systems are, at maximum (feed water @<1000 TDS):
RSX II 350
0.25 USG/min. (0.94 litres/min.)
RSX II 700
0.50 USG/min. (1.88 litres/min.)
For many systems, this rate of recovery will be insufficient in periods of peak usage. It will be
necessary for you to provide product water storage in a non-pressurized tank from which you may re-
pressurize the water for delivery to your appliances or plumbing system.
!
TOUJOURS PERMETTRE À UN NOUVEL ADOUCISSEUR INSTALLÉ POUR PRÉTRAITER UN
SYSTÈME OI DE DÉBUTER AU CYCLE RÉTROLAVAGE/RÉGÉNÉRATION/RINÇAGE. UTILISEZ
L’ADOUCISSEUR HORS DE LA LIGNE JUSQU’À CE QUE L’EAU DEVIENNE CLAIRE, AVANT DE
L’UTILISER POUR FOURNIR DE L’EAU D’ALIMENTATION OI. CETTE PROCÉDURE S’APPLIQUE
AUSSI POUR LES NOUVELLES INSTALLATIONS DE LIT DE RÉSINE. LA COULEUR
PROVENANT DES NOUVEAUX LITS DE RÉSINE PEUT ENDOMMAGER OU ENCRASSER LA
SURFACE DE MEMBRANE OI.
!
WATERITE DOES NOT RECOMMEND THE USE OF A GRANULAR/BLOCK CARBON CARTRIDGE
IN THE PRE-TREATMENT FILTER HOUSINGS SUPPLIED, FOR THE PRIMARY REDUCTION OF
CHLORINE. IT WILL REQUIRE REPLACEMENT TOO OFTEN, LIMIT FLOW RATES AND LIKELY
LEAD TO CHLORINE BREAKTHROUGH TO THE MEMBRANE ELEMENT. WE RECOMMEND
THAT THIS HOUSING BE RESERVED FOR 5-MICRON OR 1-MICRON SEDIMENT CARTRIDGES,
FOR THE REDUCTION OF SUSPENDED PARTICULATE.
!
IF THE SYSTEM IS CONNECTED DIRECTLY TO A PRESSURE TANK, MAKE SURE THAT A
CHECK VALVE IS INSTALLED ON THE PRODUCT WATER LINE BETWEEN THE MACHINE
OUTLET AND THE PLUMBING SYSTEM PRESSURE SWITCH, TO ELIMINATE BACKPRESSURE
ON THE MEMBRANE(S). FAILURE TO DO SO WILL CAUSE PERMANENT DAMAGE TO THE RO
MEMBRANE(S).
If a pressure tank and pressure switch is used, be sure that the pressure switch is capable of carrying
the full load amperage of the pump motor. For reference, the motor full load amperages are:
120VAC
RSX II 350
5.1 A
RSX II 700
7.5 A
Consult your electrician to determine the proper sized breaker for your installation. Other motor
voltages are available as a factory option. Consult with your dealer for availability and pricing.
The pressure switch will be used to turn off the RO unit at the cut-off pressure and turn it on at the cut-
in pressure, in the same way one is used to control a water well pump. Set the pressure switch to a
maximum shut-off pressure of 50 psi.
Summary of Contents for VECTAPURE RSX
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