Heating design data

The Weather Manager Heating design data settings are used to display heating design data for the selected weather profile location’s default design day. You can change the design day and recalculate the data.

Setting	Description
Heating design data type	Used to set heating design data with a single selection based on specifications derived from the 2013 ASHRAE standard. Selecting any of the available AHRAE design day types disables the other Heating design data parameters. Selecting user supplied data enables the other Heating design data parameters.
Design day	Used to display or select a new design day to recalculate the heating design data. When you click on the design day, a pop up calendar appears.
Design dry bulb temperature	Displays the lowest temperature of air measured by a thermometer freely exposed to the air but shielded from radiation and moisture on the selected weather profile’s active heating design day.
Dry bulb temperature range	A design day can have a low temperature and a high temperature (or can be a constant temperature for each hour of the day). If there is a difference between low and high temperatures, this field contains the difference from the low to the high.
Mean coincident wet bulb temperature	Displays the average of the lowest and highest temperatures of air measured by a thermometer freely exposed to the air stream but shielded from radiation and moisture on the selected weather profile’s active heating design day.
Wet bulb temperature range	Displays the difference between the maximum and minimum wet-bulb temperatures on the design day. Used for generating daily profiles of humidity conditions.
Mean coincident wind speed	Displays the average wind speed used for the calculation of the heating design data.
Prevailing coincident wind direction	Displays the wind direction measured clockwise from North for the maximum heating month.

Tip: Units Display – Units are displayed using the default system of units that was defined for the project, but can be changed to display using alternative units.