Geothermal Monitoring Systems at thegeoconnection.comThe GeoBlog |
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Monitoring your Geothermal HVAC system has a couple of benefits. You can tell if your system is having problems before they really become problems. Geothermal HVAC systems are expensive to install so any problem which might surface can have an impact on system pay back.
One of the few places where problems can arise that are hard for the owner to detect is when the ground loop pressure should fall to a low level. This should not happen to an established properly installed system, but can happen in the first year or two after the system is installed. This apparently is due to the expansion and the contraction of the newly installed loop.
Another area which can cause problems is if the pressure in the freon loop from the Heat Pump to the Air Handler should fall. This problem is not common, but can happen.
One monitoring system which is available from ourcoolhouse.com is call a WEL, Web Energy Logger. This system is extremely flexible in its application(s). The WEL uses the Dallas 1-Wire system to connect temperature sensors, contact closures, and current monitors to the HVAC plant. You can monitor more than 100 points as each sensor has its own unique address. Unfortunately the system is limited to only two current monitors. Contact ourcoolhouse.com for more information.
Currently there are two sites in the Geothermal HVAC Projects page on this site which contain links to monitoring systems currently active.
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