The Zquel Monitor collects the indoor temperature and humidity from sensors inside the unit itself. It also collects outdoor data from an international weather API based on the local zipcode or postal code entered by the homeowner during the setup process.
System Efficiency is calculated in the cloud from data collected by the Monitor.
Efficiency is expressed as a percentage-type variable (1-100). It is not an exact percentage of the system's performance, but it is a close analog. If the system's performance improves, it will go up, if it degrades, it will go down.
The efficiency of any system will vary considerably as its load increases and decreases over the course of a day. We assume a nominal system, correctly setup and fully charged will run at about 80, but this will also vary.
Some perfecly good systems will baseline at 70 and others at 90. This does not mean they are more or less efficient than a system with an 80 baseline. The monitor needs about two hours of good data to do this calculation so, for the first two hours of operation, this field will remain blank.
Daily efficiency average is the average of all the efficiency values collected over the last 24 hours.
This is the important part of the efficiency measurements. It shows the long-term trend of the system. Efficiency in a healthy system should not vary by more than five or ten percent.
Indoor Air Quality shows the amount of pollutants in the home.
Polution in the home also varies considerably. Most of the time it stays within the “Excellent” range. When someone is cooking, cleaning, or there is severe outside pollution like a neighbor burning leaves the IAQ will spike for a brief time and then come down again. This is perfectly normal. The IAQ ranges are: 0-100 = Excellent, 100-200 = Lghtly Polluted, 200-300 = Polluted, and above 300 = Very Polluted. Again, momentary values are not as important as the overall, daily record.
If a home's IAQ value stays consistently above 100, the home may need an IAQ system.
The sensor we use is self-calibrating and typically start working after about 20 minutes. In some cases, however, it can take up to 48 hours to get reliable IAQ data.
Carbon dioxide is a corollary to IAQ.
Carbon dioxide levels in a home are usually very low. Like IAQ, the CO2 levels in a home can spike with cooking, cleaning, smoking, and outside pollution. We give it a separate gauge because it has been found that people with asthma are particularly sensitive to CO2 levels above 1000 ppm. Temporary spikes are not a problem, but a home with an asthma sufferer and consistent readings above 1000 should consider an IAQ system and more ventilation. The Help: box allows a customer to send a text message directly to their contractor if they need help or have any questions.
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