This video will go over the HVAC form.
You will get to this form by clicking on the HVAC
or HVAC link from the energy Audit
Input menu section as I am doing now.
Building HVAC systems are both diverse
and potentially very complicated. As such,
this BAT section includes submenus for various important building
HVAC subsystems
as seen by the additional buttons on the left side of the data entry screen.
When you first click the HVAC menu,
you will be brought to the heating plant page.
But first we will discuss what is similar across all entry forms.
Generally, floor spaces and zones
are available for defining the area served by these systems
and will be a big driver in how spaces and zones are used
through the BAT
for the above reason,
the submenus all include an additional link to the floor plan
screen, which is available in the upper right section of the header bar.
The user can also add a new space
using the add space button.
It is not always obvious at the start of an audit assessment
what spaces and zones will be the most helpful to define in advance,
and this link can be used to quickly add or adjust these definitions
for data collection efficiency in real time during the walk through.
Generally, spaces and zones are intended to help the user define
the spaces served by the HVAC equipment
On some submenus,
spaces may also be used to define the location of the equipment.
These fields are so marked. All the submenus
make extensive use of pre-populated
dropdown lists to expedite data entry.
These are specific to each area
and the user should fully explore these prior to a site visit.
Familiarity with the content of these dropdowns
will greatly enhance the user's experience with the BAT.
In some cases, the user may need to enter data
into several sections to completely characterize the system,
such as hybrid system, which incorporates elements from multiple systems,
may require the user to break the data entry into component parts.
For example,
central cooling system
may require entries in the cooling plan.
Cooling tower pumps H2
and or terminal unit subsystems.
Now we will break down the differences and what is required
of each submenu. To get to the heating plant Submenu,
Select the heating plant button in the navigation pane on the left,
Unique fields on this submenu include type of heating plan,
which offers the user the option to specify
whether the heating plan is centralized or decentralized.
Equipment Type. A dropdown list offers the user all the common types
of heating equipment typical for central and decentralized plants.
Heat input output readings
which are fields provided to enter heat input and output capacity numbers.
Standard units are specified. Heating fluid,
which has steam and hot water, are provided as options
although other systems may be specified. Boiler plant accessories,
where options accessories such as economizers and Oxygen Trim
are provided through the dropdown lists and controls.
Description.
Given that control systems vary greatly from system to system,
the user is provided a textbox in which to describe the controls.
The notes taken in this field will appear on the audit report
for later use. And finally, condition assessment fields.
There are several optional condition assessment
fields in this submenu, including boiler age and condition.
Next we have the cooling plant submenu to get to the cooling plant submenu.
Select the button on the left side of the navigation screen.
This menu is like the one for heating plants in both form and function.
However, equipment specification fields are customized
to include equipment common for chiller plants.
Next, we have the cooling tower submenu to get to the cooling tower Submenu.
Select the button on the left side of the navigation screen.
Cooling towers are an important part
of a variety of heating cooling systems and a separate input menu
is provided for use to describe their use
at the building facility.
The only required field is the cooling tower type.
Next, we have the pump
sub menu. To get to the pump submenu,
Select the button on the left side of the navigation screen
and input form is provided to allow the user to characterize
major pumps and the form functions the same as those prior
Asterisked entries are required.
In the interest of keeping this video as concise as possible.
For more information on details of the form, please refer to the user guide.
Next, we have the piping submenu.
To get to the piping submenu, select the button
on the left side of the navigation screen.
An input form is provided to characterize the condition and characteristics
of important pipe assemblies in the building or facility.
Conceptually, the intention of this menu is to offer
the user the ability to characterize potential heat losses
from poorly insulated piping and inputs have been designed accordingly.
The BAT will accommodate as many entries as are required
to properly characterize such losses.
A text field is also provided to describe issues
with the uninsulated valves or steam traps.
Next, we have the AHU submenu
to get to the AHU Submenu.
Select the button on the left side of the navigation screen,
the air handling unit or AHU
Input form is the longest and most complicated form in the BAT.
Given the wide variety of options installed with such systems,
an extensive list of input field is provided.
Fields to specify the area served
the type of equipment, supply fan characteristics,
cooling and heating coil information and controls are available for input.
Next, we have the terminal sub menu
to get to the terminal Sub menu.
Select the button on the left side of the navigation screen.
The input form for terminal units is used to collect data
for a wide variety of units as listed in the unit type dropdown.
Non-Listed Unit types
can be added using the other selection and input field.
This form also includes data entry fields for the condensing unit.
Terminal Unit control and heating coil information as applicable.
The BAS or EMS EVHS
exhaust fan and other HP AC submenus
all give the option to input such details
about any relevant system or units installed on site.
You will notice that other HVAC is red and therefore represents the option
to input FCA related information into the BAT
Once the required information in the selection is complete,
you can return to the main menu by clicking on the main audit menu.
Return link at the top of the page, as I am doing now.