GE Merlin Application Manual

Also see for Merlin: Installation and maintenance manual Installation and maintenance manual Installation and maintenance manual

Contents

SYSTEM PERFORMANCE 5Rev CSYSTEM PERFORMANCETHE MERLIN SWEET SPOTThe Merlin uses a new, patented membrane element technology thatprovides flow rates up to five times greater than standard home ROmembranes. 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) watertemperature. The Merlin performs better as pressure and temperatureincrease. Ideally, pressures will be higher than 50 psi (3.4 bar) andtemperatures will be higher than 50°F (10°C). Figure 2 represents theapplication conditions recommended for the Merlin system.Figure 2Flow RatesFactors that directly affect flow performance from the Merlin include:• Net driving pressure (NDP)• Inlet water temperature• Inlet water conductivity (TDS)• Installation factorsAn understanding of these factors and how they affect flow is critical formaximizing 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.40 50 60 70 80 90100908070605040Pressure at Inlet (psi)Degrees FahrenheitRedYellowGreenOrangeRed - will require an inlet boosterpump. See page 11.Yellow - may require an inlet boosterpump. See page 11.Green - Merlin should work well withthese conditions.Orange - application in highpressure/high temperatureinstallations may result inreduced element life.37.832.226.721.115.6104.4Degrees Celsius2.8 3.5 4.1 4.8 5.5 6.2Pressure at Inlet (bar)