Feed Water Requirements; Transporting Pure Water (Permeate) To Point-Of-Use; E2/Ez2-Series Feed Water Requirements - GE E2 Series Installation And Operation Manual

2.4

Feed Water Requirements

The following feed water requirements must be met before installing your E2/EZ2-Series
machine to ensure quality permeate and extended membrane element life. Refer to
E2/EZ2-
Table 2.2 (
Temperature
Inlet Pressure
Chlorine
(continuous feed)
Operating pH
Silt Density Index
(SDI)
* American Standard for Testing Materials
2.5

Transporting Pure Water (Permeate) to Point-of-Use

Pure water, or permeate, is in an aggressive state and should only be transported from the
machine to the point-of-use in food grade flexible nylon, stainless steel (SS) tubing, or
polyvinyl chloride (PVC) material for the inlet, permeate, and concentrate piping sizes.
Refer to Connections (Table 2.1, E2/EZ2-Series Machine Plumbing Connections) for
inlet, permeate, and concentrate piping sizes.
WARNING:
Series Feed Water Requirements) for feed water information.
Table 2.2
E2/EZ2-Series Feed
Water Requirements
Typical: 50° - 85°F (10° - 29°C)
Limits:
Minimum:
Maximum:
0 parts per million (ppm)
5.5 - 8.5
Less than or equal to 5 to minimize
membrane element fouling and
extend cleaning intervals. Refer to
ASTM* Standard D4189.
MACHINE DAMAGE MAY OCCUR IF PERMEATE BACK PRES-
SURE EXCEEDS 60 PSI (4.1 BAR) DURING OPERATION.
2
33° - 104°F (0.60° - 40°C)
30 psig (2.1 barg)
60 psig (4.1 barg)