System Performance - GE Merlin Application Manual

SYSTEM PERFORMANCE

THE MERLIN SWEET SPOT
Flow Rates
SYSTEM PERFORMANCE
The Merlin uses a new, patented membrane element technology that
provides flow rates up to five times greater than standard home RO
membranes. The membrane element is designed to work from 40-80 psi
(2.7-5.5 bar) inlet water pressure and 40-100°F (4.4-37.8°C) water
temperature. The Merlin performs better as pressure and temperature
increase. Ideally, pressures will be higher than 50 psi (3.4 bar) and
temperatures will be higher than 50°F (10°C). Figure 2 represents the
application conditions recommended for the Merlin system.
Pressure at Inlet (bar)
2.8 3.5 4.1 4.8
100
90
Orange
80
Green
70
60
Yellow
50
Red
40
40 50 60 70
Pressure at Inlet (psi)
Factors that directly affect flow performance from the Merlin include:
• Net driving pressure (NDP)
• Inlet water temperature
• Inlet water conductivity (TDS)
• Installation factors
An understanding of these factors and how they affect flow is critical for
maximizing the Merlin's performance. To estimate Merlin's performance,
follow these steps:
1. Determine inlet TDS.
2. Determine inlet water temperature.
3. Determine net driving pressure.
4. Consult Table 1 for estimated flow.
5.5 6.2
Red -
37.8
32.2
Yellow - may require an inlet booster
26.7
Green - Merlin should work well with
21.1
15.6
Orange - application in high
10
4.4
80 90
Figure 2
will require an inlet booster
pump. See page 11.
pump. See page 11.
these conditions.
pressure/high temperature
installations may result in
reduced element life.
5
Rev C