User`s manual

PRE-FILTER PRESSURE GAUGES

These gauges measure the feed water pressure when it enters and exits the pre-filters.

A pressure differential of 10 - 15 psi or more on the two pressure gauges indicates that

the pre-filters require servicing. For example, if the inlet pressure is 40 psi, the filter

should be changed when the outlet pressure is 30 psi or below.

PERMEATE (PRODUCT) FLOW METER & CONCENTRATE (WASTE) FLOW METER

These flow meters indicate the flow rates of the permeate and concentrate water. The

measurements, when added together, also indicate the feed water flow rate or (total

flow rate); if the system is not equipped with a concentrate recycle valve.

CAUTION: EXCESSIVE RECYCLING MAY CAUSE PREMATURE FOULING

OR SCALING OF THE MEMBRANE ELEMENTS.

LOW PRESSURE SWITCH

The low pressure switch shuts off the system when the feed water pressure drops

below 15 PSI, preventing damage to the pump. The system restarts automatically when

there is a constant pressure of 35 PSI or more.

If you notice the pressure fluctuating, and the system cycling off and on,

turn the system off and ensure that proper feed flow and pressure are available to

the system.

PUMP THROTTLE VALVE

This valve is installed as a standard feature on the CT-Series reverse osmosis systems.

It provides an adjustment for pump pressure, which will vary as the required system

pressure changes. As the feed water temperature decreases, and/or the feed water

TDS increases, the system will require a higher operating pressure to produce the

specified permeate flow. CT system installed in Florida may provide the specified

permeate flow of 2.77 gpm at 100 psi; however the same system installed in Maine –

much colder feed water – may require 150 psi to produce the same amount of

permeate. Never exceed 150 psi.