GE Z-14400 - Manual (Page 14)

Z Series RO System by GE Osmonics
Waste Recirculation Flow Meter:
The Waste Recirculation Flow meter displays the amount of recycled waste water
returned to the inlet of the high-pressure pump. The flow is displayed in a panel mounted
flow meter.
Automatic Flush:
The Automatic Flush feature is intended to reduce the concentrations of suspended solids
at the RO membrane surface, thereby reducing the accumulation of scale. This is
accomplished by forcing water at a high velocity along the membrane surface, diluting or
removing existing concentrations of scale-forming contaminants.
Total Dissolved Solids (TDS) Sensor:
Samples the product water quality via the sensor probe, and the final quality of the
product water is indicated on a digital display on the front panel as TDS in mg/L and
ppm. The monitor is temperature compensated to adjust the display value to changing
water temperature.
Waste Flow Valve:
The Waste Flow Valve is a stainless steel needle valve that controls the waste water flow
to drain. The valve is used to control the ratio of waste water to permeate (% recovery)
and to accelerate the rinse-out of cleaners or disinfectants from the unit. Waste flow is
displayed in a panel-mounted flow meter.
Water Quality Monitoring:
Water Quality Monitoring is monitored in percent rejection and product output TDS.
Percent rejection is a comparison of the inlet water sensor and the product water sensor
and is displayed in a 5 LED array on the front panel. The product water TDS is
monitored with a digital display on the front panel and is temperature compensated. The
high TDS alarm level can be set by a five-position alarm set selector switch. A TDS
exceeding the TDS alarm level selector switch setting will sound an audible alarm, show
a visual alarm indicator on the front panel, and initiate the product divert to drain feature.
Product Water Sensor:
The Product Water Sensor monitors the quality of the product water. This quality is
compared to the input water and is displayed as "percent rejection" on the front panel.
Product Water Flow:
The Product Water Flow is read on a panel mounted flow meter.
Product Divert:
The Product Divert Controller and Valve Assembly is intended to reduce the possibility
of exposure to low quality RO water that may contain excessively high total dissolved
solids (TDS). The valve assembly is located on the product water line after the RO unit
and prior to the next piece of equipment.
RO Bypass Valve:
The RO Bypass Valve is a 1/4-turn ball valve which allows pretreated and pre-filtered
water to feed an optional stand by treatment system.
1238339b – 16Oct03 1 - 8 General Information