April 14, 2022
Trapped air in chilled and heating hot water systems is the biggest source of problems we see in the HVAC industry: it forces pumps to work harder, less efficiently and more noisily. Air also contributes to corrosion, which introduces rust particles and debris into the HVAC water flow. Dirt and air are both insulators so,…
March 10, 2022
Learn Why Vertical Inline Is a Better Option than Base-Mounted, Centrifugal Pumps In years past, centrifugal pumps operated horizontally and were bolted to the floor. These base-mounted, pumps were a maintenance nightmare – requiring the removal of the motor to replace seals and perform other repairs. At 10 pounds per horsepower, motors in base-mounted pumps…
February 15, 2022
With hydronics experience dating back to 1971, we frequently encounter people using condensing boilers in non-condensing applications. Why? In Chicago and other locations with cold winters, non-condensing boilers work well when it’s cold out and system temperatures are maintained at 160 to 180° F but are much less efficient when it’s warmer, from spring through…
January 12, 2022
For both duty/standby and multi-pump applications, sensorless technology in Armstrong vertical inline (VIL) pumps offers superior control and maximum energy efficiency. Sensorless Overview Sensorless control enables a pump to decrease or increase its speed to match system requirements without any external signal. In other words, sensorless pumps emulate the performance of a remotely mounted sensor…
