Geothermal HVAC Cistern Ultrasonic Level Measurement

When a Northeastern high school needed reliable level measurement of their geothermal HVAC cisterns, they turned to Flowline. The open loop system pumps cistern groundwater through the buildings, where it either absorbs or transfers heat based on the temperature, and then recirculates it back to the cistern. A HVAC contractor determined that the cisterns did not have enough groundwater to support the required flow rates, and they had to be periodically refilled with well water. To do so, they needed to add level measurement, a fill valve and relay control to each cistern. Finally, the I&C engineer was concerned over condensation and turbulence in the cisterns. For these reasons, Flowline suggested our reflective ultrasonic level sensors that are unaffected by condensation, installed in a standpipe to dampen turbulence. The ultrasonic sensors provide reliable level data to the controllers, which monitor the cisterns and automatically refill them when low. Flowline is reliable level measurement.