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How does Pelican calculate outdoor enthalpy levels?

Enthalpy Calculation:

Pelican devices used to control an outdoor damper as an economizer will use its local outdoor air temperature dry-bulb reading, in combination with Internet provided area code outdoor air saturation (humidity) and barometric pressure levels to calculate enthalpy levels.

How does a device know the area it is installed?

When you setup your Pelican web-app, you will enter the zip code or postal code for your location. The Pelican Solution uses that information to know where the site the devices are installed are located. Pelican sends the outdoor air saturation (humidity) and barometric pressure levels to the individual devices that need to use this information to calculate their outdoor enthalpy level. 

This configuration can also be found and changed in the Pelican Web-App > Admin > Site Settings > Location.

How does I change my sites zip code / postal code?

1. Select Admin on your Pelican App.

2. Select Site Settings.

3. Select Location.

4. Type in the new zip code / postal code.

5. Select Done.

Why does Pelican use the Internet versus installing a local enthalpy sensor?

When testing outdoor enthalpy sensors, Pelican found that their failure rates were high due to the dust, grease, and other particles that are found where humidity sensors are normally installed at HVAC units. To prevent inaccuracies, Pelican opted to use the Internet because this data comes from reliable sources where the equipment is always maintained and properly calibrated.