Zone HVAC Group Shape and Components

Location = Templates/System Templates/Zone HVAC Groups

 

The Zone HVAC Groups workspace is broken down into five main areas described in the System Templates Workspace, and is very similar in composition and capabilities to the Zone HVAC Groups Create & Edit Workspace.   The user can work with the Zone HVAC Groups in a number of ways.  They can:

The following provide more detailed information for the main workspace areas, and the features and fields within those areas.

  

 

The Zone HVAC Group Shape has a number of important parts, which are highlighted in the diagram below:

 

The image below is an example of what a more complex Zone HVAC Group Template can begin to look.  It incorporates an air terminal, four types of zone HVAC equipment (Ideal Loads, Energy Recovery Ventilator, Lightweight radiant ceiling panels and Lightweight Radiant Floor Panels) and four sensor types (temperature, pressure, daylight, relative humidity).  The default properties for each component can be reviewed and changed by selecting on the component shapes and reviewing the properties that are shown in the lower left corner of the Zone HVAC Group Workspace.  

 

Zone HVAC Group Setup provides an explanation of the additional process steps required, such as establishing the priority sequence for the Zone HVAC equipment.  

 

Applications:  How to use Zone HVAC Group Templates

HVAC Diagramming Tools

The figure below shows a Zone HVAC Group template on the HVAC Diagramming canvas.  There are a number of tools in the ribbon across the top that provide a range of capabilities.

Air Connector

Select when you want to draw a connection between a component, such as an air terminal or plenum, to the Zone HVAC Group shape.   The connector typically is drawn from the outlet of one component shape to the inlet of another.  In the example above the VAV Air Terminal is connected to the Zone HVAC Group by an air connector.

Note: Once selected the Air Connector will remain active until it is deselected.  Also if zone equipment, such as the 4-pipe fan coil shown above, is included in the main Zone HVAC Group, no connectors are required to be drawn for those components.

Control Connector

Select when you want to draw a connection between a controller, such as an the Zone Temperature Controller above, to a component control, Zone HVAC Group sensor or other.   The connector typically can be drawn from any of the nodes on the controller component shape to any of the nodes on the component or sensor.  

Note: Once selected the Air Connector will remain active until it is deselected.

Pointer

Can be used to select any of the components on the HVAC diagramming canvas.  By selecting a component the associated properties will be displayed in the Selected Component Information area of the workspace.

Pan

Allows you to move and reposition the diagram within the workspace.  You can also use the scroll bars at the bottom and on the right side.

Flip Horizontal

Allows you to reconfigure a selected shape and flip it horizontally.

Flip Vertical

Allows you to reconfigure a selected shape and flip it vertically.

Copy Diagram

Allows you to make a copy of the current diagram to the clipboard that can then be pasted into another document.

Hide Controls

When selected all the controllers and control connectors are hidden.  See the result below for the example above.  It is a way to simplify the diagram representation if you are working on complex templates.

Validate

Runs the Zone HVAC Group validation rule set to assess if there are any problems with the configuration.  The results are displayed in the workspace area directly below the HVAC diagramming canvas.

Zoom to Fit

Allows you to easily go back to a view of the HVAC diagramming canvas that is the extents of the overall Zone HVAC Group.

Zone HVAC Group Template Name

Displays the name of the active Zone HVAC Group Template

 

Zone HVAC Group Templates

The table displays the Zone HVAC Group System Templates that are included with version 1, and provides the full name of the template.  The Zone HVAC Group templates utilize a naming convention, so that the names can be represented in an abbreviated manner.  

Air System Templates

Full Name & Description
ASHRAE-AT_PFPB_ReH-Elec  
ASHRAE-AT_Unctrl  
ASHRAE-AT_VAV_NoReH_TC ASHRAE system type required inputs for a Variable Air Volume Air Terminal with NO Reheat that is Temperature Controlled
ASHRAE-AT_VAV_ReH-Elec-PFPB  
ASHRAE-AT_VAV_ReH-Wtr_TC ASHRAE system type required inputs for a Variable Air Volume Air Terminal with with Hot Water Reheat that is Temperature Controlled
ASHRAE-PTAC ASHRAE system type required inputs for a Packaged Terminal Air Conditioner (compound equipment)
ASHRAE-PTHP ASHRAE system type required inputs for a Packaged Terminal Heat Pump (compound equipment)
AT_4PipeInduction_Active An Air Terminal that is an active four pipe induction unit
AT_4PipeInduction_Passive An Air Terminal that is a passive four pipe induction unit

AT_CooledBeam_Active

An Active Cooled Beam (chilled beam) Air Terminal

AT_CooledBeam_Passive

A Passive Cooled Beam (chilled beam) Air Terminal
AT_PFP_Elec_TC A Parallel Fan Powered Variable Air Volume Air Terminal with an Electrical Reheat coil that is temperature controlled.
AT_PFP_Wtr_TC A Parallel Fan Powered Variable Air Volume Air Terminal with a Hot Water Reheat coil that is temperature controlled.

AT_Unctrl

An Uncontrolled Air Terminal

AT_Unctrl_DSP

 

AT_Unctrl_SSP

 

AT_VAV_No-ReH_Dsupp_TC

A Variable Air Volume Air Terminal with NO Reheat that is temperature controlled and supplied by a dedicated supply plenum group

AT_VAV_No-ReH_TC

A Variable Air Volume Air Terminal with NO Reheat that is temperature controlled

AT_VAV_ReH_FanCoil_TC

A Variable Air Volume Air Terminal with a Hot Water Reheat coil that is temperature controlled.  A four pipe fan coil that connects to a hot water loop and chilled water loop is included as zone equipment.

AT_VAV_ReH-Elec_TC

 

AT_VAV_ReH-Gas_TC

 

AT_VAV_ReH-Wtr_TC

A Variable Air Volume Air Terminal with Hot Water Reheat that is temperature controlled

AT_VAV-reheat-water-30%-min

A Variable Air Volume Air Terminal with Hot Water Reheat that is temperature controlled and has the Constant Minimum Air Flow Fraction set to 30%

EnergyRecoveryVentilator

EnergyRecoveryVentilator (compound equipment)

Ideal

Ideal System (compound equipment)

PTAC

Packaged Terminal Air Conditioner (compound equipment)

PTHP

Packaged Terminal Heat Pump (compound equipment)

RadSlab_Clng_CV

 

RadSlab_Clng_VAV

Radiant Slab ceiling with a Variable Air Volume Air Terminal

RadSlab_Floor_CAV

 

RadSlab_Floor_VAV

Radiant Slab floor with a Variable Air Volume Air Terminal

RadSlab_Floor_VAV+Reheat-HW_30%min

 

RadSlab_Flr-Clng_VAV

Radiant Slab floor and ceiling with a Variable Air Volume Air Terminal

Unit Ventilator

Unit Ventilator

WindAC

Window Air Conditioner

 

 

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