DHW Zones is a protected browser tree grouping scheme set up specifically for organizing Rooms into DHW (Domestic Hot Water) Zones.
Figure 1-8: DHW Zones grouping scheme and DHW Zones dialog within Apache
By default, one DHW zone is defined in a model and contains all of the rooms. Rooms appearing in light grey text will not be included in the DHW Zone within ApacheHVAC. Additional DHW zones can be created by using the ‘Create and edit space groups’ button.
Drag & drop functionality is provided for moving Rooms into and among defined DHW Zones. A right-click menu provides additional tools for moving rooms by cut & paste, renaming zones, accessing the Properties dialog, and re-synchronization of the browser tree when model rooms are added or sub-divided.
The DHW Zones dialog is a tabular, editable view of the DHW zones in a project and can be accessed via the toolbar button in Apache or by right clicking in the DHW Zones grouping scheme and selecting Properties.
For each DHW Zone, domestic hot water demand can be defined as either the sum of the demand from the spaces within that zone, or as a user-entered demand for the DHW Zone. When the demand is determined by the spaces, the DHW Zone inherits the collective DHW demand from the constituent spaces. When the demand is set at the DHW Zone level, any DHW settings in the constituent rooms will be overridden. Instead, a DHW Consumption value and DHW Pattern of Use Profile will be defined in the DHW Zones dialog.
