There is a lot of sales information on that pump, but very little on technical instructions. I am wondering if adding a pressure reducing valve to the supply side to keep the pressure at 40 (maybe even set it to 35) might resolve the issue? I do notice that sometimes my incoming pressure is 40, others its 45, sometimes even 50. Could this be caused by fluctuating incoming pressure. Anyone know what it should be set to for incoming pressure of 40 and outgoing of 70?ģ. Could it be the internal pressure tank? It is precharged at the factory to 18.5 psi. Does anyone know what causes this issue?Ģ. I have 10 more days to return it for a full refund, so if I cannot get it to work properly i will uninstall and perhaps go with a CSV type solution.ġ. But, I've got the SCALA2 installed and would like to try to make it work. I'll add that I have read the forums and understand there is some difference of opinion on VFDs and grundfos pumps. I've had 5 taps open at once all at 70psi, so when it works its pretty cool. I open another tap and it seamlessly keeps the pressure constant. I open a tap and it runs until the tap is closed. Call our toll free number 1-80 to speak to an expert today.At other times, the thing runs like a champ. Pump Products application engineers are standing by to help you find the right pump, as well as to provide price quotes, stocking availability and shipping information. Grundfos SCALA2 Series Service Instructions Grundfos SCALA2 Series Installation Instructions Grundfos SCALA2 Series Booster Pump Data Sheet Grundfos SCALA2 Series Booster Pump Brochure Grundfos SCALA2 series water booster pumps The Grundfos SCALA2 is a convenient all-in-one unit that includes the pump, motor, tank, sensor, drive and non-return valve. An integrated sensor detects if the inlet pressure varies or if multiple taps are running water and relays that communication to the booster pump. An intelligent pump control system ensures that the user can designate his or her ideal water pressure. It operates quietly at a sound level of only 47 dB(A) during typical use. The SCALA2 is compact and easy to install in a variety of configurations. These advanced Grundfos pumps are also commonly found pressure boosting city main water, water from roof tanks, break tanks and ground tanks, as well as supplying water from shallow wells up to 8 meters deep. SCALA2 pumps are perfect for residential buildings with up to 3 floors and 8 taps. Grundfos SCALA2 series water booster pumps are designed to to provide constant water pressure in all taps at all times, even when multiple taps are running at the same time. SCALA2 is suitable for both indoor and outdoor installations. Water supply from shallow wells (up to 8 m).Pressure boosting of water from ground tank.Pressure boosting of water from break tank.Pressure boosting of water from roof tank.Residential buildings with up to 3 floors and 8 taps.And with its intelligent pump control, SCALA2 automatically adjusts performance to both inlet pressure and water consumption in the home. It packs pump, motor, tank, sensor, drive and non-return valve into one compact unit. SCALA2 is a fully integrated water booster pump providing perfect water pressure in all taps at all times – even with multiple taps and showers running at the same time. Buy Grundfos 98562817, SCALA2 Series, Water Booster Pumps
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